阅读说明：本技术 一种医用量具 (Medical measuring tool ) 是由 燕芳红 马玉霞 史素杰 梁雪萍 王晨霞 韩琳 陈艳茹 黄亚楠 于 2020-12-21 设计创作，主要内容包括：本发明涉及一种医用量具,至少包括第一刻度数值和第二刻度数值。第二刻度数值与第一刻度数值的对应关系如下：第二刻度数值＝[第一刻度数值×0.38696]+30.37+6。通过该设置方式,能够在测量完鼻尖-耳垂-剑突距离之后,直接得到对应换算后的鼻胃管预估的置入长度,使得鼻胃管置入长度可视化,从而有效提高置管效率及准确度。(The invention relates to a medical measuring tool, which at least comprises a first scale numerical value and a second scale numerical value. The corresponding relationship between the second scale numerical value and the first scale numerical value is as follows: the second scale numerical value ═ the first scale numerical value × 0.38696] +30.37+ 6. Through the arrangement mode, the implantation length of the nasogastric tube estimated after corresponding conversion can be directly obtained after the distance between the nasal tip and the earlobe and the xiphoid process is measured, so that the implantation length of the nasogastric tube is visual, and the tube implantation efficiency and accuracy are effectively improved.)

1. A medical measuring tool is characterized by at least comprising a first scale numerical value (100) and a second scale numerical value (200), wherein the corresponding relation between the second scale numerical value (200) and the first scale numerical value (100) is as follows:

the second scale numerical value (200) ═ the [ first scale numerical value (100) × 0.38696] +30.37+ 6.

2. A medical gauge, characterized by comprising a telescopic body (1) consisting of a plurality of hollow segments (11) nested into one another, said segments (11) being provided with a stop portion (12) and an adjustment portion (13), wherein,

under the state that the outer section (11) and the inner section (11) slide relative to each other, the adjusting portion (13) of the outer section (11) and the limiting portion (12) of the inner section (11) abut against each other to enable the limiting portion (12) to be in a compressed state to further push the second limiting body (1141) in the end portion of the inner section (11) in the circumferential direction to be separated from the concave portion (1133), and therefore under the action force of the adjusting portion (13), the two end portions of the inner section (11) slide relative to each other to fit the measured object without generating tensile action force on the measured object.

3. A medical gauge, comprising a plurality of segments (11) that can be fitted to an object to be measured and nested within each other,

one side of the segment (11) is at least partially covered with at least one adjusting part (13) extending towards/away from a first direction of the measured object;

the end part of the segment (11) along the sliding direction is provided with at least one limiting part (12) which can abut against an adjusting part (13) nested in the segment (11) to be in a compressed state, the limiting part (12) is connected with at least one end part of the segment (11) in the circumferential direction to enable the two end parts of the segment (11) in the circumferential direction to be separated from each other and further slide relatively under the action of the force of the adjusting part (13) extending towards the first direction, and therefore the nested segment (11) automatically wraps the measured object through the relative sliding of the two end parts in the circumferential direction in the state that the two segments (11) slide relatively to each other.

4. The medical gauge according to any of the preceding claims, wherein a first end (113) and a second end (114) of the segment (11) in the circumferential direction follow each other, wherein,

the first end part (113) is provided with a second groove body (1131) for inserting the second end part (114) and a slideway (1132) for connecting the limiting part (12) with the first end part (113)/the second end part (114) and sliding along the side wall of the segment (11);

or

The first end portion (113) and the second end portion (114) are attached to each other in a mode that the connecting pieces are sleeved with the first end portion (113) and the second end portion (114), the connecting pieces are provided with slideways (1132) for the limiting portions (12) to be connected with the first end portion (113)/the second end portion (114) along the axial direction of the segments (11), and the limiting portions (12) can drive the connecting pieces to move along the circumferential direction of the segments (11).

5. The medical gauge according to any of the preceding claims, wherein the adjustment portion (13) comprises at least a damping layer (132) and a first spring (131) between the segment (11) and the damping layer (132), wherein,

two ends of the damping layer (132) along the sliding direction of the segment (11) form notches with the side wall of the segment (11).

6. The medical gauge according to any of the preceding claims, wherein the stop portion (12) comprises at least a first stop (121) provided at an end of the segment (11) in the sliding direction, wherein,

the first position-limiting member (121) comprises a first position-limiting body (1211), a first groove body (1212), and a second elastic member (1213), wherein,

the first limiting body (1211) is arranged in the first groove body (1212), and is connected with the side wall of the first groove body (1212) through the second elastic piece (1213) so that the first limiting body (1211) enters the first groove body (1212) after being compressed by the adjusting portion (13) and is ejected out of the first groove body (1212) under the condition of sliding to the notch along with the section (11).

7. The medical gauge according to any of the preceding claims, wherein the first stop body (1211) and the adjustment portion (13) are provided with a first slope section (12111) on the side against each other, wherein,

under the condition that the inner side section (11) slides along the outer side section (11) so that a first limiting body (1211) of the inner side section (11) respectively passes through two notches formed by a damping layer (132) of an adjusting part (13) of the outer side section (11) and a side wall of the outer side section (11), a first inclined section (12111) of the inner side section (11) is opposite to the damping layer (132) in the notch on the side opposite to the sliding direction so that the first inclined section (12111) and the side wall of the outer side section (11) at the notch are in a non-contact state, and therefore the first limiting body (1211) and the side wall of the outer side section (11) are mutually clamped to prevent the inner side section (11) and the outer side section (11) from being separated from each other, and the first limiting body (1211

The first inclined section (12111) of the inner section (11) and the side wall of the outer section (11) at the notch on one side of the sliding direction are opposite to each other, so that when the inner section (11) slides towards the notch, the first limiting body (1211) can abut against the side wall of the outer section (11) at the notch so as to enter the first groove body (1212) to avoid obstructing the sliding of the inner section (11) along the outer section (11).

8. The medical gauge according to any of the preceding claims, wherein the second channel (1131) of the first end portion (113) is provided with at least one recess (1133),

a second limiting body (1141) is arranged in the second end part (114), a first convex part (1142) and a third limiting body (1144) which can enter the concave part (1133) to be clamped with each other are arranged on one side of the second limiting body (1141) corresponding to the concave part (1133), wherein,

the third position limiting body (1134) is used for abutting against the pushing portion (12112) of the first position limiting body (1211) so as to drive the second end portion (114) to slide relative to the first end portion (113) under the sliding of the first position limiting body (121).

9. The medical gauge according to any of the preceding claims, wherein the adjustment portion (13) is provided with an opening accommodating an ejection mechanism (2), wherein,

the pop-up mechanism (2) at least comprises a fourth limiting body (21), a fifth limiting body (22) and a fifth elastic piece (25) which is respectively connected with the fourth limiting body (21) and the fifth limiting body (22),

in the event of the inner section (11) sliding along the outer section (11) not exceeding a sliding threshold, the ejection mechanism (2) is in a compressed state, being trapped in the opening, and the fourth (21) and fifth (22) arresting bodies and the adjustment portion (13) are in compression against each other;

in the event of the inner segment (11) sliding along the outer segment (11) beyond a sliding threshold, the ejection mechanism (2) is moved in the radial direction of the segment (11) out of the opening and causes the fourth and fifth limiting bodies (21, 22) to eject to push the inner segment (11) to slide along the outer segment (11).

10. The medical gauge according to any of the preceding claims, wherein the fourth stopper body (21) is provided with a third slope section (211) which abuts against the adjustment portion (13),

the fifth limiting body (22) is provided with a fourth slope section (221) which is abutted against the adjusting part (13).

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical measuring tool.

Background

At present, for patients who can not take food through mouth, a stomach tube or a nasogastric tube, namely, a mouth feeding mode or a nasal feeding mode is generally adopted to assist the patients to take food. Specifically, a gastric/nasogastric tube is placed orally or nasally into the esophagus and then through the esophagus via the pharynx to the stomach manually. Water and food are injected into the stomach tube/nasogastric tube at the end part of the stomach tube/nasogastric tube in a mode of manually pressurizing a syringe push rod and a piston, so that a patient can be guaranteed to take in enough nutrition, moisture and medicines. In fact, the indwelling gastric tube can also be used for clinical treatment purposes such as gastric lavage, gastrointestinal decompression, drug delivery and the like.

In the insertion process of the gastric tube/nasogastric tube, the insertion length of the gastric tube/nasogastric tube is critical, and the problems of gastric mucosal bleeding, gastric tube ectopy, gastric tube reverse folding, increased reflux and the like can be caused due to the overlong insertion length. If the implantation length is too short, the side hole of the gastric tube/nasogastric tube can only reach the lower esophagus or the cardiac part, nausea and vomiting can be caused to a patient when food is injected, food reflux can be caused, lung infection can be caused for a long time, and even death can be caused by aspiration and asphyxia.

According to basic nursing of textbooks in China, the method for predicting the tube placement length of a gastric tube/nasogastric tube commonly adopted in current clinical practice is taking the distance from forehead hairline to sternal xiphoid process or nasal tip-earlobe-xiphoid process as the placement length. Meanwhile, because it is relatively troublesome to measure the distance between the nasal tip and the earlobe and the xiphoid process, the distance between the forehead hairline and the xiphoid process is used to replace the distance between the nasal tip and the earlobe and the xiphoid process clinically. However, the research on the optimal placement length of the gastrointestinal decompression nasogastric tube and the in-vitro measurement method [ J ] of the literature [1] Zhang Hua, Liweidong, Liu pure and gorgeous ]. the practical medicine journal, 2010,26(23): 4351-. The Accuracy of the modified tip-to-ear xiphoid distance formula (tip-to-ear xiphoid distance 0.38696) +30.37+6cm in determining the length of an adult nasogastric tube proposed by researchers such as Torsy was verified according to the experiments in [2] Tim, T, Ren, S, Kurt, B, Ivo, D, Mats, E, Sofie, V, Dimitri, B, 2020, Accuracy of the corrected tip-to-ear-xiphoid distance for use in determining the nasal gastric tube length.

If the distance between the nasal tip and the earlobe and the xiphoid process needs to be measured by an operator according to the latest insertion length formula, the calculation method is complicated in conversion, the insertion efficiency and the patient experience are seriously affected, and the process needs to be simplified.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a medical measuring tool, which at least comprises a first scale numerical value and a second scale numerical value. The corresponding relationship between the second scale numerical value and the first scale numerical value is as follows:

the second scale numerical value ═ the first scale numerical value × 0.38696] +30.37+ 6. Through the arrangement mode, the implantation length of the nasogastric tube estimated after corresponding conversion can be directly obtained after the distance between the nasal tip and the earlobe and the xiphoid process is measured, so that the implantation length of the nasogastric tube is visual, and the tube implantation efficiency and accuracy are effectively improved.

The invention also provides a medical gauge comprising a telescoping body constructed from a plurality of hollow segments nested within one another. The segment is provided with a limiting portion and an adjusting portion. Under the state that the outer section and the inner section slide relative to each other, the adjusting part of the outer section and the limiting part of the inner section abut against each other to enable the limiting parts to be in a compressed state to push the second limiting bodies in the end parts of the inner section in the circumferential direction to be separated from the concave parts, so that under the action force of the adjusting parts, the two end parts of the inner section slide relative to each other to fit the measured object and do not generate tensile action force on the measured object. Because stomach tube/nasogastric tube itself only provides limited scale to its scale probably leads to the scale inaccurate because factors such as manufacturing, consequently medical personnel need confirm through the measuring tool and put into length, and stomach tube/nasogastric tube adopt soft materials such as silica gel, polyurethane to make, and it is the state of convoluteing, and medical personnel need stretch the flat with stomach tube/nasogastric tube and put in order to measure, because the inserting of stomach tube/nasogastric tube frequently is used for the ICU patient, the patient's state of an illness is serious and change very fast, the purpose of putting into of stomach tube is also changing constantly, consequently needs stomach tube/nasogastric tube to put into fast. However, stretching and flattening and measurement of the gastric tube/nasogastric tube require at least two medical staff to operate, the operation is complicated, the time consumption is long, and the gastric tube/nasogastric tube is made of elastic materials, so that the gastric tube/nasogastric tube deforms in the stretching process, and the measured length is inaccurate. Therefore, the medical measuring tool can measure through the telescopic medical measuring tool, the segment can automatically change the size of the segment in the process of stretching the segment through the limiting part and the adjusting part in the measuring process, the segment is automatically attached to the gastric tube/nasogastric tube to unfold the gastric tube/nasogastric tube, and the stretching acting force cannot be generated on the gastric tube/nasogastric tube.

The invention also provides a medical measuring tool which comprises a plurality of segments which can be sleeved on the measured object and are nested with each other. One side of the segment is at least partially covered with at least one adjustment portion extending towards/away from a first direction of an object to be measured. The end of the segment along the sliding direction is provided with at least one limiting part which can be abutted with the adjusting part nested in the segment so as to be in a compressed state. The limiting portion is connected with at least one end of the segment in the circumferential direction so that two ends of the segment in the circumferential direction can be separated from each other and then can slide relative to each other under the action of the force of the adjusting portion extending towards the first direction, and therefore the segment which is nested in the state that the two segments slide relative to each other can automatically cover the measured object through the relative sliding of the two ends in the circumferential direction.

According to a preferred embodiment, the first and second ends of the segments in the circumferential direction are in abutment with each other. The first end is provided with a second groove body used for inserting the second end and a slideway used for connecting the limiting part with the first end/the second end and sliding along the side wall of the segment.

Or the first end part and the second end part are mutually attached in a mode of sleeving the connecting piece. The connecting piece is provided with the slide that supplies spacing portion with first end/second end are connected along the axis direction of section to spacing portion can drive the connecting piece along the circumference removal of section.

According to a preferred embodiment, the adjustment portion comprises at least a damping layer and a first elastic element between the segment and the damping layer. Two ends of the damping layer along the sliding direction of the segment form notches with the side walls of the segment respectively.

According to a preferred embodiment, the stopper portion includes at least a first stopper provided at an end of the segment in the sliding direction. The first limiting part comprises a first limiting body, a first groove body and a second elastic part. The first limiting body is arranged in the first groove body and is connected with the side wall of the first groove body through the second elastic piece, so that the first limiting body is compressed by the adjusting part to enter the first groove body and is popped out from the first groove body along with the section sliding to the notch.

According to a preferred embodiment, a first slope section is arranged on one side of the first limiting body, which is abutted against the adjusting part, of the first limiting body. Under the condition that the inner side section slides along the outer side section, so that the first limiting body of the inner side section respectively passes through the two notches formed by the damping layer of the adjusting portion of the outer side section and the side wall of the outer side section, the first slope section of the inner side section is opposite to the damping layer in the notch on the side opposite to the sliding direction, so that the first slope section and the side wall of the outer side section at the notch are in a non-contact state, and the first limiting body and the side wall of the outer side section are mutually clamped to prevent the inner side section and the outer side section from being separated from each other. The first slope section of the inner section and the side wall of the outer section at the notch on one side of the sliding direction are opposite to each other, so that when the inner section slides to the notch, the first limiting body can abut against the side wall of the outer section at the notch to enter the first groove body so as to avoid blocking the inner section from sliding along the outer section.

According to a preferred embodiment, at least one recess is provided in the second slot of the first end portion. The second end is internally provided with a second limiting body. The second limiting body is provided with a first convex part and a third limiting body which can enter the concave part to be mutually clamped on one side of the concave part. The third limiting body is used for abutting against the pushing portion of the first limiting body so as to drive the second end portion to slide relative to the first end portion under the sliding of the first limiting member.

According to a preferred embodiment, the adjustment portion is provided with an opening accommodating the ejection mechanism. The pop-up mechanism at least comprises a fourth limiting body, a fifth limiting body and a fifth elastic piece which is respectively connected with the fourth limiting body and the fifth limiting body. In the event that the inner segment slides along the outer segment beyond a sliding threshold, the ejection mechanism is in a compressed state to be retained within the opening, and the fourth and fifth retention bodies and the adjustment portion abut against each other in a compressed state. In the event that the inner segment slides along the outer segment beyond a sliding threshold, the ejection mechanism moves in a radial direction of the segment out of the opening to cause the fourth and fifth spacing bodies to eject to push the inner segment to slide along the outer segment.

According to a preferred embodiment, the fourth limiting body is provided with a third slope section which abuts against the adjusting part. The fifth limiting body is provided with a fourth inclination section which is mutually abutted to the adjusting part.

Drawings

FIG. 1 is a schematic view of a measurement scale of a preferred embodiment of a medical gauge of the present invention;

FIG. 2 is a schematic diagram of the measurement of the tip of the nose-earlobe-xiphoid process;

FIG. 3 is a telescoping view of a preferred embodiment of a medical gauge of the present invention;

FIG. 4 is a schematic view of the construction of a preferred embodiment of a medical gauge of the present invention;

FIG. 5 is a schematic structural view of a preferred embodiment of a segment of the present invention;

FIG. 6 is a schematic illustration of the configuration of the recesses within the segments of the present invention;

FIG. 7 is a schematic cross-sectional view of the present invention at a first stop;

FIG. 8 is a schematic view of another preferred embodiment of a medical gauge of the present invention;

FIG. 9 is a first state schematic diagram of another preferred embodiment of a medical gauge of the present invention;

fig. 10 is a second state diagram of another preferred embodiment of a medical gauge of the present invention.

List of reference numerals

100: first scale numerical value 200: second scale value

1: a body 11: segment 111: first segment

112: second segment 12: the limiting part 121: first position limiting part

122: second stopper 13: the adjusting portion 131: first elastic member

132: damping layer 1321: second pitch segment 1322: second convex part

1211: the first limiting body 1212: first groove 1213: second elastic member

12111: first slope section 12112: the pushing portion 113: first end part

114: second end 1131: the second slot 1132: slide way

1133: recess 1134: pedestal 1141: second position limiting body

1142: first projection 1143: third elastic member 1144: third position limiting body

2: the eject mechanism 21: fourth stopper body 22: the fifth limiting body

23: third groove 24: fourth elastic member 25: fifth elastic member

211: third slope section 221: fourth slope section

3: nose tip 4: the ear lobe 5: xiphoid process 6: pharynx part

7: and 4, esophagus 8: cardia 9: the stomach body 10: antrum of stomach

20: pylorus 30: nasogastric tube

Detailed Description

The following detailed description is made with reference to fig. 1 to 10.

The stomach/nasogastric tube structure will be explained first.

A gastric Tube (Nasogastric Tube) is a Tube that helps patients who cannot swallow deliver the necessary moisture and food under special circumstances. The stomach tube is generally made of polyurethane or silica gel material. Polyurethane and silica gel stomach tubes should be changed once a month according to the material. The thickness and the length are different specifications. The gastric tubes include orogastric tubes and nasogastric tubes 30. The length of the oral gastric tube is about 45Cm, and the oral gastric tube can be inserted into the oral gastric tube by 35-40 Cm. The nasogastric tube 30 is about 105Cm long, and is inserted through the nostril to about 55Cm, passes through the pharynx 6, and reaches the stomach 9 through the esophagus 7, as shown in fig. 2. Nasogastric tube 30 is easy to be separated, should be adhered firmly, prevents repeated intubation and aspiration, and consists of a pipeline, a gastric tube feeding port connector, a gastric tube clamp and a cross-shaped plugging cap. Keep somewhere nasogastric tube 30 in esophagus 7, the original alimentary canal physiological environment of patient is changed, can lead to 7 terminal sphincters of esophagus to close not tightly, and the air flue is obstructed severe cough and other pressure stimuli easily lead to complication such as 7 refluxes of esophagus, also can draw out the gastric juice through nasogastric tube 30. The food injection port connectors of the nasogastric tube 30 are generally two, the uppermost blocking cap is opened, only a small injector is used for manually pressurizing a push rod and a piston to inject liquid food with the same water, a booster and a 100ml large injector can be used for injecting thick meat and vegetable powder or mechanically crushing the thick meat and vegetable powder into paste or pasty noodles and the like, so that dietary fiber can be increased, defecation is facilitated, digestion and nutrition supply are promoted, but the situation that the stomach is not emptied smoothly and the backflow of the esophagus 7 can be caused due to the fact that the stomach cannot be fed too fast once can be avoided. However, most nasogastric tubes 30 currently have limited scales. For example, the nasogastric tube 30 has a length of 120cm, 4 marks are marked thereon, and the first mark is 45cm, indicating that the nasogastric tube 30 reaches the cardia 8. The second scale is 55cm, indicating entry of nasogastric tube 30 into stomach 9. The third scale, 65cm, indicates entry of nasogastric tube 30 into pylorus 20. The fourth scale, 75cm, indicates entry of nasogastric tube 30 into the duodenum. Therefore, on one hand, the nasogastric tube 30 has a limited number of marked scales, and the length of the cannula cannot be accurately determined under the condition that the implantation length does not belong to the marked scales. On the other hand, even mark a plurality of scales, because the difference of manufacturing, not only can't guarantee nasogastric tube 30 mark the accuracy of scale numerical value, the side opening of different nasogastric tube 30 is different with the distance on top moreover, consequently can't guarantee through the scale numerical value of stomach tube 30 mark itself and put into the accuracy of length.

It should be noted that accurate intubation can be performed by X-ray or B-ultrasonic, but intubation steps are more by X-ray or B-ultrasonic. Preferably, the intubation by X-ray or B-ultrasonic is performed by the medical staff as follows:

the measurement of the patient's nasal tip 3-earlobe 4-xiphoid process 5 is measured and the length of the cannula required by the patient is then obtained. Preferably, the CH/FR15,100cm, F/TR nasogastric tube 30 can be used to put the nasogastric tube 30 into the expected length by the conventional method, the guide wire is pulled out by 10cm (the position of the top end of the guide wire is the position of the last side hole), the bedside radiography (for positioning the guide wire) is carried out, the length of the top end and the top end of the guide wire from the cardia 8 is recorded after radiography, and then the length of the nasogastric tube 30 (i.e. the length of the top end of the guide wire from the cardia 8) is adjusted to make the last side hole enter the stomach 9. The steps are complicated, more medical equipment is involved, the operation is complicated, and the adjustment time of the gastric tube intubation is longer. For the above reasons, since the length of the nasogastric tube 30 to be inserted is generally measured by a measuring tool in the clinical treatment means for inserting the nasogastric tube 30 in an ICU ward, the method for determining the length of the insertion has fewer and simple steps and is easier to operate than the above method. However, the following problems are found in the actual tube placing operation of the nursing staff:

1. because the nasogastric tube 30 is made of polyurethane material or silica gel, the nasogastric tube 30 is made of soft material, and the overall length of the nasogastric tube 30 is about 1m, when medical staff determines the estimated insertion length of the nasogastric tube 30, the originally bent nasogastric tube 30 needs to be straightened for measurement, however, straightening the nasogastric tube 30 and measuring are not suitable for a single nurse to operate;

2. straightening the nasogastric tube 30 may cause the nasogastric tube to be stretched, and may not meet the requirements for centimeter-level accuracy;

3. after the measurement, the nasogastric tube 30 needs to be marked, and the marking is likely to cause new contamination, and the measurement needs to be re-sterilized again.

It should be noted that inaccuracies in the measured values can affect the patient by causing the nasogastric tube 30 to be placed too short and too long. For example, the nasogastric tube 30 is placed too short, the side hole can only reach the lower part of the esophagus 7 or the cardia 8, and the patient can nausea and vomit when food is injected, so that food reflux is caused, lung infection can be caused for a long time, and even death can be caused by aspiration and asphyxia. If the nasogastric tube 30 is placed too long, for example, beyond the antrum 10 to reach the duodenal area, normal digestion of food is affected, which may easily cause problems such as malnutrition and diarrhea over a long period of time.

For the above reasons, it is desirable to accurately measure and mark the length of the gastric tube placement in a manner that does not interfere with gastric tube placement. The working principle of the invention is as follows: the telescopic body 1 is constituted by a plurality of segments 11 nested inside one another. In the measurement, the nasogastric tube 30 passes through the body 1. When body 1 expandes, a plurality of sections 11 slide each other with the extension relatively, and when sliding, the space size of the enclosing of section 11 can change, and then automatic cladding laminating nasogastric tube 30's surface to can flatten crooked nasogastric tube 30, and can not produce tensile effort to nasogastric tube 30. Medical staff only need to penetrate the nasogastric tube 30 into the medical measuring tool through the medical measuring tool, and then pull the segment 11, the medical measuring tool can be automatically attached to the nasogastric tube 30, and when the body 1 is stretched to the estimated implantation length through the scales on the segment 11, the medical measuring tool can also be used as a mark of the implantation length. For example, after the insertion length is determined at the proximal end of the nasogastric tube 30, i.e. the end close to the adapter, the segment 11 of the body 1 is slid to the proximal side from the top end of the nasogastric tube 30, so that the body 1 starts to be shortened, and finally returns to the state where the initial length is only the length of the segment 11, thereby marking the length of the nasogastric tube 30 to be inserted for the nurse.

Example 1

As shown in fig. 1, the present invention provides a medical gauge including at least a first calibrated value 100 and a second calibrated value 200. The correspondence between the second scale numerical value 200 and the first scale numerical value 100 is as follows:

the second scale value 200 ═ the [ first scale value 100 × 0.38696] +30.37+ 6. The accuracy of the prior art formula for the modified nasal-earlobe-xiphoid distance (nasal tip-earlobe-xiphoid distance 0.38696) +30.37+6cm has been widely confirmed. If the intubation tube insertion length is calculated according to the latest intubation tube insertion length formula, an operator needs to measure the distance between the nasal tip and the earlobe and the xiphoid process and then automatically convert the distance, and the calculation method is complicated in conversion and seriously affects intubation efficiency and patient experience, so that the converted insertion length is displayed through the second scale value 200 by directly converting the first scale value 100 into the second scale value 200, the medical staff can directly determine the insertion length of the nasogastric tube 30, and intubation operation of the medical staff is facilitated.

The invention also provides a medical gauge comprising a telescopic body 1 consisting of a plurality of hollow segments 11 nested one inside the other, as shown in fig. 1 and 3. As shown in fig. 4, the segment 11 is provided with a stopper portion 12 and an adjustment portion 13. In a state where the outer section 11 and the inner section 11 slide relative to each other, the adjustment portion 13 of the outer section 11 and the stopper portion 12 of the inner section 11 abut against each other to make the stopper portion 12 in a compressed state to push the second stopper 1141 in the end portion of the inner section 11 in the circumferential direction out of the recess 1133, so that both end portions of the inner section 11 slide relative to each other under the force of the adjustment portion 13 to fit the object to be measured without generating a tensile force to the object to be measured. Because the stomach tube/nasogastric tube 30 only provides limited scales, and the scales may be inaccurate due to factors such as processing and manufacturing, the medical staff needs to determine the insertion length through the measuring tool, and the stomach tube/nasogastric tube 30 is made of soft materials such as silica gel and polyurethane, and is in a convoluted state, the medical staff needs to stretch and flatten the stomach tube/nasogastric tube for measurement, and because the stomach tube/nasogastric tube is frequently inserted into an ICU patient, the patient has serious illness and changes quickly, the insertion purpose of the stomach tube is also changing continuously, and thus the stomach tube/nasogastric tube needs to be inserted quickly. However, stretching and flattening and measurement of the gastric tube/nasogastric tube require at least two medical staff to operate, the operation is complicated, the time consumption is long, and the gastric tube/nasogastric tube is made of elastic materials, so that the gastric tube/nasogastric tube deforms in the stretching process, and the measured length is inaccurate. Therefore, the medical measuring tool measures through the telescopic medical measuring tool, in the measuring process, the section 11 can automatically change the size of the section 11 through the limiting part 12 and the adjusting part 13 in the telescopic process of the section 11, the section 11 is automatically attached to the gastric tube/nasogastric tube 30 to unfold the gastric tube/nasogastric tube 30, the stretching acting force cannot be generated on the gastric tube/nasogastric tube, the inserting length of the nasogastric tube 30 can be accurately measured, and the nasogastric tube 30 cannot be stretched and damaged. In addition, the medical measuring tool according to the invention can achieve a telescopic function by means of the relatively slidable segments 11, and can thus be used as a marking for the insertion length. For example, after the insertion length is determined at the proximal end of the nasogastric tube 30, i.e. the end close to the adapter, the segment 11 of the body 1 is slid to the proximal side from the top end of the nasogastric tube 30, so that the body 1 starts to be shortened, and finally returns to the state that the initial length is only the length of the segment 11, thereby marking the length of the nasogastric tube 30 to be inserted for the medical staff.

Preferably, the first end 113 and the second end 114 of the segment 11 in the circumferential direction are attached to each other. As shown in fig. 5, the first end portion 113 is provided with a second groove 1131 for insertion of the second end portion 114. The first end 114 is also provided with a chute 1132. The slideway 1132 connects the position-limiting part 12 with the first end 113/the second end 114. The ramps 1132 also allow the stop 12 to slide along the side walls of the segment 11. Preferably, the segments 11 may be circular. Preferably, the segments 11 may be made of an elastic material. Such as rubber, silicone, polyurethane, etc.

Preferably, at least one recess 1133 is provided in the second channel 1131 of the first end portion 113, as shown in fig. 6. The first end 113 is also provided with a pedestal 1134. The pedestal 1134 is provided with a recess 1133. As shown in FIG. 7, a second spacing body 1141 is disposed in the second end portion 114. The second stopper 1141 has a first projection 1142 that can enter the recess 1133 to engage with the recess 1133 on the side facing the recess 1133. The second end portion 114 is further provided therein with a third position-limiting body 1144 connected to the second position-limiting body 1141. Preferably, the third position-limiting body 1144 is configured to abut against the pushing portion 12112 of the first position-limiting body 1211 to drive the second end portion 114 to slide relative to the first end portion 113 under the sliding of the first position-limiting member 121. With this arrangement, when first tab 1142 enters recess 1133, first end 113 and second end 114 snap-lock to one another such that first end 113 and second end 114 are secured to one another. When the first stopper 1211 of the adjusting portion 12 is compressed into the first groove 1212, the pushing portion 12112 connected to the first stopper 1211 pushes the second stopper 1141 to move toward one side of the object to be tested, so that the first protrusion 1142 is separated from the recess 1133, and the first end portion 113 and the second end portion 114 are unlocked from each other, and the first end portion 113 and the second end portion 114 can slide relative to each other under the action of the adjusting portion 13, so as to change the size of the space enclosed by the segments 11, and further fit the object to be tested. Preferably, the third position-limiting body 1144 can be connected to the side wall of the second end portion 114 via a third elastic element 1143. With this arrangement, after the third stopper 1144 is pushed by the pushing portion 12112, it can be reset after the force disappears.

Preferably, another embodiment may be that the first end portion 113 and the second end portion 114 are attached to each other in a manner of being sleeved on the connecting member. The connecting member is provided with a slideway 1132 for connecting the limiting part 12 with the first end part 113/the second end part 114 along the axial direction of the segment 11, and the limiting part 12 can drive the connecting member to move along the circumferential direction of the segment 11.

Preferably, the adjusting part 13 includes at least a damping layer 132 and a first elastic member 131. As shown in fig. 4, the first elastic member 132 is located between the segment 11 and the damping layer 132. Both ends of the damping layer 132 in the sliding direction of the segment 11 are notched with the side walls of the segment 11, respectively, as shown in fig. 4. Preferably, the adjustment portions 13 may be provided on the inner wall of the segment 11 in a spaced manner from each other. Preferably, the side walls of the damping layer 132 at the gap may be non-perpendicular to the segment 11. For example, as shown in FIG. 4, the side wall of the gap of the damping layer 132 is a second sloped section 1321. The second sloped section 1321 and the axially directed side wall of the segment 11 are non-perpendicular to each other. Preferably, the second sloped section 1321 is non-perpendicular to the radially directed side wall of the segment 11. With this arrangement, when the position-limiting portion 12 moves to the notch, the first position-limiting body 1211 is in a non-compressed state, and the position-limiting portion 12 can be engaged with the notch, thereby preventing the segment 11 from slipping. In addition, the first elastic member 132 can enable the damping portion 122 to be tightly attached to the outer wall of the segment 11, so that the friction force generated by the damping portion 132 on the outer wall is kept, the segment 11 is prevented from sliding out, meanwhile, the friction force also provides supporting force for the medical measuring tool during unfolding, the medical measuring tool is prevented from retracting, the unfolding measuring form is kept, and the measurement is convenient.

The notches of the stopper portion 12 at the ends of the damper portion 132 are different from each other, and the structure of the stopper portion will be described below.

Preferably, the position-limiting portion 12 includes at least a first position-limiting member 121 and a second position-limiting member 122. A first limiting member 121 and a second limiting member 122, as shown in fig. 4. The first limiting member 121 and the second limiting member 122 may be located at two axial ends of the first segment 11.

Preferably, the structure of the first limiting member 121 is the same as that of the second limiting member 122. To avoid redundancy, the structure of the first limiting member 121 is described. The first position-limiting member 121 includes a first position-limiting body 1211, a first groove 1212, and a second elastic member 1213. The first stopper 1211 is disposed in the first groove 1212. The first stopper 1211 is connected to a sidewall of the first groove 1212 through a second elastic member 1213. With this arrangement, the first stopper 1211 can be caused to pop out of the first groove 1212 when being compressed by the adjustment portion 13 into the first groove 1212 and slid to the notch along with the segment 11. Preferably, the first stopper 1211 and the adjusting portion 13 abut against each other with a first slope section 12111. In the case where the inner section 11 is slid along the outer section 11 such that the first stopper 1211 of the inner section 11 passes through the two notches formed by the damping layer 132 of the adjustment portion 13 of the outer section 11 and the side wall of the outer section 11, respectively, the first inclined section 12111 of the inner section 11 is opposed to the damping layer 132 in the notch on the sliding direction side such that the first inclined section 12111 and the side wall of the outer section 11 at the notch are in a non-contact state, whereby the first stopper 1211 and the side wall of the outer section 11 are engaged with each other to prevent the inner section 11 and the outer section 11 from being detached from each other. The first inclined section 12111 of the inner section 11 is opposite to the side wall of the outer section 11 at the notch on the opposite side of the sliding direction, so that the first stopper 1211 can abut against the side wall of the outer section 11 at the notch to enter the first groove 1212 when the inner section 11 slides towards the notch to avoid obstructing the sliding of the inner section 11 along the outer section 11. By this arrangement, the segment 11 can slide in both axial directions thereof. As shown particularly in fig. 4, the lateral segment 11 may be represented by a first segment 111. The inner segment 11 may be represented by a second segment 112. When the second segment 112 slides upward, the first stopper 1211 of the first stopper 121, the first inclined section 12111 thereof can be ejected along the second inclined section 1321, and the first stopper 1211 is in a partially expanded state after being notched, but the first inclined section 12111 of the first stopper 1211 and the radial sidewall of the first segment 11 are not parallel to each other, so that after abutting against each other, the first stopper 1211 is in a compressed state so that the second segment 112 can continue to slide upward. When the second segment 112 continues to slide upward, and the second retaining member 122 reaches the notch, the first inclined section 12111 of the first retaining body 1211 and the radial sidewall of the first segment 111 are parallel to each other, so that they can be engaged with each other, and the second segment 112 is prevented from separating from the first segment 111.

For ease of understanding, the method of use of the present invention is as follows:

1. after the distance between the tip of the nose, the earlobe and the xiphoid process is obtained after the measurement, the length of the nasogastric tube 30 is measured by the first scale value 100 based on the converted insertion length corresponding to the second scale value 200 corresponding to the first scale value 100. It should be noted that the second scale value 200 is only used to determine the converted implantation length value, and the stomach tube length is measured subsequently to determine the implantation length value, and the measurement is continued by using the first scale value 100.

Preferably, the measurement of the distance between the tip of the nose and the earlobe and the xiphoid process can be performed by using a tape measure. Preferably, the measurement of the nasal tip-earlobe-xiphoid distance can also be measured using the medical gauge of the present invention. In order to perform the subsequent aseptic operation of stomach tube measurement, when the medical quantity measurement is performed, medical staff can also use aseptic gloves and use aseptic non-woven fabrics to wrap the medical measuring tool for measurement, so that the pollution can be avoided. During measurement, the medical measuring tool can stretch out and draw back, so that the distance expanded after measurement is the measured distance, and the first scale numerical value 100 read after the non-woven fabric is disassembled is the distance from the tip of the nose to the earlobe to the xiphoid process.

The present embodiment also provides another preferred embodiment for the sterility problem in gastric tube measurement and for simplifying the operation procedure to facilitate the measurement operation for the medical staff. Since it is troublesome to measure the nasal tip-earlobe-xiphoid process, and the distance of the nasal tip-earlobe-xiphoid process is equal to the distance of the forehead hairline-xiphoid process, the distance of the forehead hairline-xiphoid process is currently used to replace the distance of the nasal tip-earlobe-xiphoid process clinically. In actual practice, a sterile treatment towel is laid in front of the chest of the patient before the patient is intubated, so that the medical measuring tool can realize sterile operation by using the forehead hairline-xiphoid process and the sterile treatment towel. Specifically, after the treatment towel is laid on the chest of the patient, the position of the patient's xiphoid process is confirmed, and the position of the xiphoid process is marked on the treatment towel. Preferably, the means of marking may be by affixing a sterile sticker. Then, the medical measuring tool is sleeved on the stomach tube and is used for flattening the stomach tube, so that the marked position of the forehead hairline of the patient on the treatment towel can be directly measured.

2. Measuring the length of nasogastric tube 30: because the nasogastric tube 30 is generally made of silica gel or polyurethane material, the length of the nasogastric tube 30 is prevented from being lengthened due to stretching, so that the measurement is not accurate, the operation of medical staff is facilitated, and the nasogastric tube is protected during measurement, so that the length of the nasogastric tube is measured by using the telescopic medical measuring tool for coating the nasogastric tube. After determining the length of nasogastric tube 30 to be placed, measurements are made using the medical gauge of the present invention. The medical measuring device of the present invention is sleeved on the proximal end of the nasogastric tube 30, and then the segment 11 is pushed to move downward and is deployed to the desired implantation length. During the downward movement of the segment 11, the first end 113 and the second end 114 of the inner segment 11 can slide relative to each other to automatically fit the nasogastric tube 30 because the stopper 12 of the inner segment 11 is pressed by the adjustment part 13 and is in a compressed state. By this arrangement, the nasogastric tube 30 can be flattened without generating a tensile force. Subsequent adjustment of the implantation length can also be achieved by manually pushing the limiting portion 12 to adjust the fitting degree of the nasogastric tube 30, and then the implantation length of the nasogastric tube 30 can be accurately determined.

3. After the length of insertion of nasogastric tube 30 is determined, the medical gauge of the present invention can be returned to the initial state by retracting segment 11 for marking. The length of the medical gauge of the present invention in its initial state is the length of the segment 11. Preferably, the length of insertion of the nasogastric tube 30 cannula is generally 65cm to 75cm, and the length of segment 11 can be selected to be 5cm, for a total of 15 segments 11. The thickness of the side wall of the segment 11 plus the thickness of the regulating portion 13 is about 0.2cm, and the total thickness of the side wall of one side of the 15 segments 11 is 3cm, so that the total radius of the medical gauge of the present invention needs 6 cm.

Preferably, it is to be noted that the medical gauge of the present invention is subjected to a sterilization operation before the measurement is performed, and is operated using sterile gloves or sterile gauze during the measurement. Preferably, the sterilization operation may, for example, perform a sterilization operation on the medical gauge of the present invention using hydrogen peroxide, such as liquid hydrogen peroxide sterilization, vaporized hydrogen peroxide sterilization, hydrogen peroxide plasma sterilization, and hydrogen peroxide sol spray sterilization. Preferably, the segments 11 of the present invention may be of polyurethane material, which does not react with hydrogen peroxide. The elastic component can avoid the influence of sterilization operation by adopting a mode of plating a non-metal protective layer.

Example 2

This embodiment is a further improvement of embodiment 1, and repeated contents are not described again.

The invention also provides a medical measuring tool, which comprises a plurality of segments 11 which can be sleeved on an object to be measured and are nested with each other. One side of the segment 11 is at least partially covered with at least one adjustment portion 13 extending towards/away from a first direction of the object to be measured. The end of the segment 11 in its sliding direction is provided with at least one stopper portion 12 capable of abutting against an adjustment portion 13 that nests the segment 11 to be in a compressed state. The stopper portion 12 is connected to at least one end portion of the segment 11 in the circumferential direction so as to be able to cause both end portions of the segment 11 in the circumferential direction to be separated from each other and to relatively slide under a force of the adjusting portion 13 extending toward the first direction, so that the segment 11 nested in a state where the two segments 11 slide relative to each other automatically covers the object to be measured by the relative sliding of both end portions in the circumferential direction. Preferably, the arrangement of the segments 11, the limiting parts 12 and the segments 13 is the same as that of embodiment 1, and repeated descriptions are omitted.

Example 3

This embodiment is a further improvement on embodiments 1 and 2 and their combination, and repeated details are not repeated.

Since the placement scene of the nasogastric tube 30 is mostly used in an ICU ward, since the condition of a patient changes rapidly and the purpose of placing the tube may be constantly changed, a medical clerk is required to quickly place the tube to treat the patient in time, and thus if a measurer deploys the medical measuring tool of the present invention, the measurer may not completely push or pull the segment 11, resulting in incomplete deployment, and further inaccurate measurement. Based on the above problem, the present embodiment provides the ejection mechanism 2 at the adjustment portion 13 to completely eject after the segment slides a certain distance, thereby avoiding the problem of inaccurate measurement due to incomplete pushing/pulling of the segment 11. In addition, since the medical gauge of the present invention needs to slide in both directions, the eject mechanism 2 needs to realize ejection in both directions.

Preferably, the adjustment portion 13 is provided with an opening accommodating the eject mechanism 2. The pop-up mechanism 2 at least includes a fourth position-limiting body 21, a fifth position-limiting body 22, and a fifth elastic element 25 respectively connected to the fourth position-limiting body 21 and the fifth position-limiting body 22, as shown in fig. 8. Preferably, the fourth stopper body 21 and the fifth stopper body 22 are disposed in the third groove 23. The fourth stopper body 21 and the fifth stopper body 22 are movable in the third groove body 23. Preferably, the third groove 23 is connected to the inner wall of the outer segment 11 by a fourth elastic member 24. Preferably, in the event that the inner segment 11 slides along the outer segment 11 not exceeding the sliding threshold, the ejection mechanism 2 is in a compressed state, being trapped in the opening, and the fourth and fifth trapping bodies 21, 22 and the adjustment portion 13 abut each other in a compressed state. In the event that the inner segment 11 slides along the outer segment 11 beyond the sliding threshold, the ejection mechanism 2 is moved in the radial direction of the segment 11 out of the opening and causes the fourth and fifth spacing bodies 21, 22 to eject to push the inner segment 11 to slide along the outer segment 11. Preferably, the sliding threshold is set according to the sizes of the third groove body 23, the fourth stopper body 21 and the fifth stopper body 22. Preferably, the threshold of slippage of the present invention is that the segment 11 slips more than 2.5 cm.

According to a preferred embodiment, the fourth limiting body 21 is provided with a third oblique section 211 which abuts against the adjustment portion 13. The fifth stopper body 22 is provided with a fourth slope section 221 which abuts against the regulating portion 13. Preferably, the second projection 1322 is provided at a portion of the damping layer 132 of the adjustment portion 13, which is in contact with the fourth stopper body 21 and the fifth stopper body 22. Through this mode of setting, can avoid third inclination section 211 and fourth inclination section 221 and damping layer 132's corner to produce too big frictional force when fourth spacing body 21 and fifth spacing body 22 slide along damping layer 132, and then be favorable to third cell body 23 to remove in the opening of regulating part 13.

Preferably, the process of compressing the eject mechanism 2 back to the opening of the regulating portion 13 is as shown in fig. 9 and 10. The operating principle of the ejection mechanism 2 is as follows:

as shown in fig. 8, the upper and lower stages of fig. 8 show two states in which the eject mechanism 2 is fully ejected and fully compressed into the opening of the regulating portion 13. Figure 9 shows a first state in which the second segment 112 is slid downwards so that the fourth spacing body 21 and the fifth spacing body 22 move relative to each other. As shown in fig. 9, when the second segment 112 moves downward, the fourth position-limiting body 21 and the fifth position-limiting body 22 of the pop-up mechanism 2 are compressed, and when the fifth elastic element 25 between the fourth position-limiting body 21 and the fifth position-limiting body 22 is compressed to a certain extent, it will not deform, and further, the third groove 23 is driven to move downward. As shown in fig. 10, when the second segment 112 continues to slide downward, the fourth stopper 21 is pressed to move toward the inner wall of the first segment 111, and further drives the third groove 23 to move toward the inner wall of the first segment 111, and when the second segment 112 continues to move downward, the fourth inclined section 221 of the fifth stopper 22 retracts into the third groove 23 under the action of the second projection 1322, so that the pop-up mechanism 2 retracts into the opening of the adjustment portion 13 completely.

Through the arrangement mode, the medical measuring tool can be completely unfolded when being unfolded, and inaccurate measurement caused by incomplete pushing/pulling of the segments 11 is avoided.

The present specification encompasses multiple inventive concepts and the applicant reserves the right to submit divisional applications according to each inventive concept. The present description contains several inventive concepts, such as "preferably", "according to a preferred embodiment" or "optionally", each indicating that the respective paragraph discloses a separate concept, the applicant reserves the right to submit divisional applications according to each inventive concept.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.