阅读说明：本技术 一种医用便携式体液酸碱度测试仪及其测试方法 (Medical portable body fluid pH value tester and testing method thereof ) 是由 吴颖 张小龙 李希 于 2020-05-27 设计创作，主要内容包括：本发明公开了一种医用便携式体液酸碱度测试仪及其测试方法,涉及医疗器材技术领域,其技术方案要点是：包括机体、检测试纸、电路板、微处理器、照明装置、高清摄像头、读数显示屏、调节按钮、试纸插槽、放置板和微型蓄电池,放置板位于高清摄像头正下方；机体设有贯穿机体侧壁的U形弹簧按钮,U形弹簧按钮的顶端延伸出机体外,U形弹簧按钮位于机体内部的端部连接有挤压固定机构,挤压固定机构底端位于放置板边缘的正上方。该医用便携式体液酸碱度测试仪能对患者胃内抽取物的酸碱度进行精准检测,检测速度快,且便于将使用过的检测试纸抽出丢弃；同时,该检测仪体积小,便于携带,便于医务人员的检测操作。(The invention discloses a medical portable body fluid pH value tester and a testing method thereof, relating to the technical field of medical equipment, and the technical scheme is as follows: the device comprises a machine body, a detection test paper, a circuit board, a microprocessor, a lighting device, a high-definition camera, a reading display screen, an adjusting button, a test paper slot, a placing plate and a micro storage battery, wherein the placing plate is positioned under the high-definition camera; the organism is equipped with the U-shaped spring button who runs through the organism lateral wall, and outside the organism was extended to U-shaped spring button's top, the end connection that U-shaped spring button is located the organism inside had extrusion fixed establishment, and extrusion fixed establishment bottom is located and places the flange edge directly over. The portable medical body fluid pH value tester can accurately detect the pH value of an extracted substance in the stomach of a patient, has high detection speed, and is convenient for extracting and discarding used detection test paper; meanwhile, the detector is small in size, convenient to carry and convenient for detection operation of medical staff.)

1. A medical portable body fluid pH value tester is characterized in that: the test paper detection device comprises a machine body (1) and test paper (2) matched with the machine body (1), wherein a circuit board (3) is installed in the machine body (1); the circuit board (3) is integrated with a microprocessor (4); the machine body (1) is internally provided with an illuminating device (5) and a high-definition camera (6) close to the illuminating device (5), the illuminating device (5) and the high-definition camera (6) are fixedly connected with the inner wall of the machine body (1), and the illuminating device (5) and the high-definition camera (6) are connected with the microprocessor (4); a reading display screen (7) connected with the microprocessor (4) and an adjusting button close to the reading display screen (7) are arranged on the outer wall of the machine body (1); the end part of the machine body (1) is provided with a test paper slot (8) communicated with the interior of the machine body (1); a placing plate (9) with the end part connected with the test paper slot (8) is arranged in the machine body (1), the placing plate (9) is positioned under the high-definition camera (6), and the top surface of the placing plate (9) is parallel to the plane where the bottom end of the high-definition camera (6) is positioned; a miniature storage battery (10) is embedded in the outer wall of the machine body (1); the machine body (1) is provided with a U-shaped spring button (11) penetrating through the side wall of the machine body (1), the top end of the U-shaped spring button (11) extends out of the machine body (1), the end part, located inside the machine body (1), of the U-shaped spring button (11) is connected with an extrusion fixing mechanism, and the bottom end of the extrusion fixing mechanism is located right above the edge of the placing plate (9).

2. The medical portable body fluid pH value tester as claimed in claim 1, wherein: the extrusion fixing mechanism comprises two linkage mechanisms (12), two transmission columns (13), two horizontal connecting pieces (14) and two extrusion columns (15), the linkage mechanisms (12) are respectively connected with two end parts of the U-shaped spring button (11) located in the machine body (1), the transmission columns (13) are installed in grooves of the U-shaped spring button (11) located in the machine body (1), the top surfaces of the horizontal connecting pieces (14) are fixedly connected with the bottom ends of the transmission columns (13), two ends of the top surface of each horizontal connecting piece (14) are respectively connected with the bottom ends of the two linkage mechanisms (12), the two extrusion columns (15) are respectively fixedly connected with two ends of the bottom surface of each horizontal connecting piece (14), and the bottom ends of the two extrusion columns (15) are respectively located right above edges of two sides of the placing plate (9).

3. The medical portable body fluid pH value tester as claimed in claim 1, wherein: the width of the detection test paper (2) is smaller than that of the test paper slot (8), and the length of the detection test paper (2) is larger than that of the placing plate (9).

4. The medical portable body fluid pH value tester as claimed in claim 1, wherein: the adjusting button comprises a starting button (16), a first triangular button (17) and a second triangular button (18), and the first triangular button (17) and the second triangular button (18) are used for adjusting and controlling the display state of the reading display screen (7).

5. The medical portable body fluid pH value tester as claimed in claim 1, wherein: the outer wall of the machine body (1) is a curved surface.

6. The medical portable body fluid pH value tester as claimed in claim 1, wherein: the detection test paper (2) is provided with an insertion end (19) and an absorption end (20), the detection test paper (2) is of a three-layer structure, the detection test paper (2) comprises an litmus test paper layer (21) and two transparent glass fiber layers (22), and the transparent glass fiber layers (22) are respectively laid on the top surface and the bottom surface of the litmus test paper layer (21).

7. A test method of a medical portable body fluid pH value tester is characterized in that: the method comprises the following steps:

s1, collecting the gastric extract of the patient, and processing the gastric extract of the patient to prepare a test sample;

s2, inserting the detection test paper (2) matched with the body fluid pH value tester into the top surface of a placing plate (9) in the body (1) through a test paper slot (8) of the body (1), and fixing the detection test paper (2) on the top surface of the placing plate (9) by pressing a U-shaped spring button (11);

s3, dipping the test sample prepared in the step S1 to the absorption end (20) of the test paper (2), so that the test sample is diffused to the surface of the test paper (2) in the body (1), and the surface of the test paper (2) is subjected to color change;

s4, after the surface color of the test paper (2) in the step S3 is completely changed, the body fluid pH value tester is started to work through a start button (16), so that a microprocessor (4), an illuminating device (5), a high-definition camera (6) and a reading display screen (7) in a body fluid pH value tester body (1) are enabled to enter a working state, the high-definition camera (6) collects color image information on the surface of the test paper (2) on the top surface of a placing plate (9) and transmits the collected color image information to the microprocessor (4), the microprocessor (4) analyzes and processes the color image information, compares the color image information with contrast color image information which is implanted into the microprocessor (4) in advance, then obtains a comparison result, and converts the comparison result into digital information and transmits the digital information to the reading display screen (7), displaying the detected pH value of the gastric aspirate from the patient;

s5, after the later step S4, the test paper (2) is separated from the top surface of the placing plate (9) by pressing the U-shaped spring button (11), and the test paper (2) is taken out from the test paper slot (8) and discarded.

8. The method for testing the medical portable body fluid pH value tester according to claim 7, which is characterized in that: the test sample described in step S1 is in a liquid state.

Technical Field

The invention relates to the technical field of medical equipment, in particular to a medical portable body fluid pH value tester and a testing method thereof.

Background

The gastric tube is an important conduit for enteral nutrition and can provide necessary nutritional support for the patient to promote early recovery of the patient. But are prone to shifting during placement of the gastric tube and during routine care. The nutrient solution can easily reach the air passage after displacement, and if the judgment of a nursing staff is not timely or accurate, the nutrient solution is easily mistakenly entered into the air passage, so that serious lung infection is caused. Therefore, the nursing operation specifications at home and abroad are definitely specified, and the nursing staff must judge whether the stomach tube is in the stomach before feeding nutrient solution to the stomach tube every time. Traditional gastric juice suction and appearance judgment; pumping gas into the stomach tube, and hearing the gas in the stomach to pass through the underwater sound; placing the tail end of the stomach tube into water, and observing a bubble method; the method is not recommended any more due to lack of accuracy. Both domestic and foreign guidelines and literature indicate that detection of the pH value of an intragastric extract or chest X-ray examination can be used as a first-line criterion for determining whether a gastric tube is in the stomach. However, the X-ray examination is complex, most hospitals do not have the bedside X-ray examination condition, and the radioactive examination cannot be performed before the patient is fed with the tube. Therefore, the pH value test of the gastric extract is a safe, convenient and economic method.

At present, most domestic nursing staff adopt litmus paper method to judge pH range, but research shows that the pH value obtained by the method has obvious relation with the color perception of the nursing staff, and different nursing staff can read various conclusions with the same color. The guidelines indicate that litmus paper alone is not a method of determining the location of a gastric tube.

Therefore, in order to accurately determine the position of the gastric tube, the pH value of the gastric aspirate from the patient must be precisely detected. However, in the current commercially available pH tester, the probe is made of glass or metal, and cannot be used once. Meanwhile, in clinical work, the articles exposed to body fluids or blood of patients should be treated as infectious waste and cannot be reused. Based on the reasons and the problems, the invention aims to design a portable test paper disposable medical body fluid pH value tester.

Disclosure of Invention

The invention aims to provide a medical portable body fluid pH value tester and a testing method thereof, the medical portable body fluid pH value tester can accurately detect the pH value of an extracted substance in the stomach of a patient, has high detection speed and is convenient for extracting and discarding used detection test paper; meanwhile, the detector is small in size, convenient to carry and convenient for detection operation of medical staff.

The technical purpose of the invention is realized by the following technical scheme: a medical portable body fluid pH value tester comprises a machine body and test paper matched with the machine body, wherein a circuit board is arranged in the machine body; the circuit board is integrated with a microprocessor; the lighting device and the high-definition camera are fixedly connected with the inner wall of the machine body, and are connected with the microprocessor; a reading display screen connected with the microprocessor and an adjusting button close to the reading display screen are arranged on the outer wall of the machine body; the end part of the machine body is provided with a test paper slot communicated with the interior of the machine body; a placing plate with the end part connected with the test paper slot is arranged in the machine body, the placing plate is positioned under the high-definition camera, and the top surface of the placing plate is parallel to the plane where the bottom end of the high-definition camera is positioned; a miniature storage battery is embedded in the outer wall of the machine body; the machine body is provided with a U-shaped spring button penetrating through the side wall of the machine body, the top end of the U-shaped spring button extends out of the machine body, the end part, located inside the machine body, of the U-shaped spring button is connected with an extrusion fixing mechanism, and the bottom end of the extrusion fixing mechanism is located right above the edge of the placing plate.

By adopting the technical scheme, when the body fluid pH value tester is used for testing the pH value of the gastric extract of a patient, the detection test paper is inserted into the surface, close to the high-definition camera, of the placing plate from the test paper slot of the machine body, one end part of the detection test paper is positioned outside the machine body, the extrusion fixing mechanism is used for fixing the detection test paper on the surface of the placing plate by pressing the U-shaped spring button, then the gastric extract of the patient is contacted with the end part, positioned outside the machine body, of the detection test paper, so that the liquid of the gastric extract of the patient is diffused on the surface of the detection test paper, and the surface of the detection test; the high-definition camera is conveniently illuminated through the illuminating device; the high-definition camera is convenient for collecting color image information on the surface of the test paper, the high-definition camera transmits the collected color image information on the surface of the test paper to the microprocessor, the microprocessor analyzes and processes the information after receiving the color image information, compares the color image information with contrast color image information implanted into the microprocessor in advance, obtains a comparison result, converts the comparison result into digital information and transmits the digital information to the reading display screen, so that the pH value of the detected extract in the stomach of the patient is displayed through the reading display screen, and the accurate detection of the pH value of the extract in the stomach of the patient is realized; after the pH value of the extract in the stomach of the patient is detected, the extrusion fixing mechanism is contracted by pressing the U-shaped spring button, so that the detection test paper can be easily separated from the surface of the placing plate, and the detection test paper with the pH value extracted in the stomach of the patient is conveniently extracted and discarded by the test paper slot to be treated as infectious waste; the portable medical body fluid pH value tester can accurately detect the pH value of an extracted substance in the stomach of a patient, has high detection speed, and is convenient for extracting and discarding used detection test paper; meanwhile, the detector is small in size, convenient to carry and convenient for detection operation of medical staff.

The invention is further configured to: the extrusion fixing mechanism comprises two linkage mechanisms, two transmission columns, two horizontal connecting pieces and two extrusion columns, the linkage mechanisms are respectively connected with two end portions of the U-shaped spring buttons, the U-shaped spring buttons are located in the machine body, the transmission columns are installed in grooves of the U-shaped spring buttons, the top surfaces of the horizontal connecting pieces are fixedly connected with the bottom ends of the transmission columns, two ends of the top surfaces of the horizontal connecting pieces are respectively connected with the bottom ends of the two linkage mechanisms, the two extrusion columns are respectively fixedly connected with two ends of the bottom surface of the horizontal connecting piece, and the bottom ends of the two extrusion columns are respectively located right above edges of two sides of the placing plate.

Through adopting above-mentioned technical scheme, through interlock mechanism, transmission post, horizontal connecting piece and extrusion post, be convenient for constitute the elasticity button mechanism of similar spring ballpoint with the cooperation of U-shaped spring button, be convenient for through pressing U-shaped spring button for the extrusion post can stretch out and draw back from top to bottom, thereby realizes fixing between test paper and the place plate surface or makes and break away from fixedly between test paper and the place plate surface.

The invention is further configured to: the width of the detection test paper is smaller than that of the test paper slot, and the length of the detection test paper is larger than that of the placing plate.

By adopting the technical scheme, the width of the detection test paper is smaller than that of the test paper slot, and the length of the detection test paper is larger than that of the placement plate, so that the detection test paper can be conveniently inserted into the placement plate surface in the machine body through the test paper slot, and one end part of the detection test paper is positioned outside the machine body.

The invention is further configured to: the adjusting button comprises a starting button, a first triangular button and a second triangular button which are connected with the miniature storage battery circuit, and the first triangular button and the second triangular button are used for adjusting and controlling the display state of the reading display screen.

By adopting the technical scheme, the starting button is convenient for switching on or switching off the electric component connected with the micro storage battery on the body, so that the starting and the closing of the body fluid pH value tester are convenient to control; through first triangle button and second triangle button, be convenient for send control command to microprocessor, microprocessor adjusts the state that shows numerical value on the reading display screen according to this control command control.

The invention is further configured to: the outer wall of the machine body is a curved surface.

Through adopting above-mentioned technical scheme, the outer wall of organism is the curved surface, is convenient for improve medical staff and grips the organism and carry out the comfort of detection achievement.

The invention is further configured to: the detection test paper is provided with an insertion end and an absorption end and is of a three-layer structure, the detection test paper comprises a litmus test paper layer and two transparent glass fiber layers, and the transparent glass fiber layers are respectively laid on the top surface and the bottom surface of the litmus test paper layer.

By adopting the technical scheme, the insertion end of the detection test paper is inserted into the body through the test paper insertion slot, and the absorption end of the detection test paper is contacted with the extraction object in the stomach of the patient; through the transparent glass fiber layer, the gastric extract of the patient can be more rapidly diffused to the surface of the litmus test paper, so that the surface of the litmus test paper is rapidly discolored, and the detection speed is increased conveniently; meanwhile, the transparent glass fiber layer does not influence the high-definition camera to collect color image information on the surface of the litmus test paper.

A test method of a medical portable body fluid pH value tester comprises the following steps:

s1, collecting the gastric extract of the patient, and processing the gastric extract of the patient to prepare a test sample;

s2, inserting the detection test paper matched with the body fluid pH value tester into the top surface of a placing plate in the body through a test paper slot of the body, and fixing the detection test paper on the top surface of the placing plate by pressing a U-shaped spring button;

s3, dipping the test sample prepared in the step S1 to the absorption end of the test paper, so that the test sample is diffused to the surface of the test paper in the body, and the color of the surface of the test paper is changed;

s4, after the surface color of the test paper in the step S3 is completely changed, the body fluid pH value tester is started to work through a start button, a microprocessor, an illuminating device, a high-definition camera and a reading display screen in a machine body of the body fluid pH value tester are enabled to enter a working state, the high-definition camera collects color image information of the surface of the test paper on the top surface of a placing plate and transmits the collected color image information to the microprocessor, the microprocessor analyzes and processes the color image information, compares the color image information with contrast color image information which is implanted into the microprocessor in advance, then obtains a comparison result, converts the comparison result into digital information and transmits the digital information to the reading display screen, and displays the pH value extracted from the stomach of the detected patient;

and S5, after the later step S4, pressing the U-shaped spring button to separate the test paper from the top surface of the placing plate, and taking out and discarding the test paper from the test paper slot.

The invention is further configured to: the test sample described in step S1 is in a liquid state.

In conclusion, the invention has the following beneficial effects: the detection test paper is conveniently inserted into the surface, close to the high-definition camera, of the placing plate through the test paper slot, one end of the detection test paper is located outside the machine body, the extrusion fixing mechanism fixes the detection test paper on the surface of the placing plate through pressing the U-shaped spring button, then the gastric extract of the patient is in contact with the end, located outside the machine body, of the detection test paper, liquid of the gastric extract of the patient is diffused on the surface of the detection test paper, and therefore the surface of the detection test paper is discolored; the high-definition camera is conveniently illuminated through the illuminating device; the high-definition camera is convenient for collecting color image information on the surface of the test paper, the high-definition camera transmits the collected color image information on the surface of the test paper to the microprocessor, the microprocessor analyzes and processes the information after receiving the color image information, compares the color image information with contrast color image information implanted into the microprocessor in advance, obtains a comparison result, converts the comparison result into digital information and transmits the digital information to the reading display screen, so that the pH value of the detected extract in the stomach of the patient is displayed through the reading display screen, and the accurate detection of the pH value of the extract in the stomach of the patient is realized; after the pH value of the extract in the stomach of the patient is detected, the extrusion fixing mechanism is contracted by pressing the U-shaped spring button, so that the detection test paper can be easily separated from the surface of the placing plate, and the detection test paper with the pH value extracted in the stomach of the patient is conveniently extracted and discarded by the test paper slot to be treated as infectious waste; the portable medical body fluid pH value tester can accurately detect the pH value of an extracted substance in the stomach of a patient, has high detection speed, and is convenient for extracting and discarding used detection test paper; meanwhile, the detector is small in size, convenient to carry and convenient for detection operation of medical staff.

Drawings

FIG. 1 is a perspective view of the structure of example 1 of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view showing a structure of a test paper inserted in example 1 of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 1 taken along line A-A;

FIG. 5 is a schematic view showing the structure of a test paper in example 1 of the present invention;

FIG. 6 is a schematic cross-sectional view of a test paper in example 1 of the present invention;

FIG. 7 is a schematic structural view of a press fixing mechanism in embodiment 1 of the present invention;

FIG. 8 is a block diagram showing the constitution in embodiment 1 of the present invention;

fig. 9 is a flowchart in embodiment 2 of the present invention.

In the figure: 1. a body; 2. detecting test paper; 3. a circuit board; 4. a microprocessor; 5. an illumination device; 6. a high-definition camera; 7. a reading display screen; 8. inserting test paper into a slot; 9. placing the plate; 10. a micro-battery; 11. a U-shaped spring button; 12. a linkage mechanism; 13. a drive post; 14. a horizontal connecting member; 15. extruding the column; 16. a start button; 17. a first triangular button; 18. a second triangular button; 19. an insertion end; 20. an absorption end; 21. a litmus test paper layer; 22. a transparent glass fiber layer.

Detailed Description

The present invention is described in further detail below with reference to figures 1-8.