阅读说明：本技术 一种穿刺辅助器具 (Puncture auxiliary device ) 是由 李明 闻潮声 林悦凤 于 2019-12-30 设计创作，主要内容包括：本发明公开了一种穿刺辅助器具,包括转动板和固定板,转动板绕其中一个垂直于固定板的侧壁的轴线转动,转动板和固定板之间设置有用于指示转动板和固定板张合角度的第一角度指示装置,转动板上转动连接有导针器,转动板和导针器之间设置有用于指示转动板和导针器相对旋转角度的第二角度指示装置。医护人员根据临床实际情况通过调整转动板和固定板之间的张合角度以及导针器与转动板之间的相对旋转角度。随后医护人员将穿刺针推送插入至患者体内,穿刺辅助器具对穿刺针进行导向。本穿刺辅助器具在临床医生进行穿刺时极大程度上保证穿刺角度的稳定和准确性,并且能减少因操作失误造成穿刺失败的概率。本发明用于医疗器械技术领域。(The invention discloses a puncture auxiliary device which comprises a rotating plate and a fixed plate, wherein the rotating plate rotates around one axis which is perpendicular to the side wall of the fixed plate, a first angle indicating device used for indicating the opening and closing angle of the rotating plate and the fixed plate is arranged between the rotating plate and the fixed plate, a needle guide is rotatably connected to the rotating plate, and a second angle indicating device used for indicating the relative rotation angle of the rotating plate and the needle guide is arranged between the rotating plate and the needle guide. Medical personnel adjust the opening and closing angle between the rotating plate and the fixed plate and the relative rotating angle between the needle guide and the rotating plate according to clinical practical conditions. Then the medical staff inserts the puncture needle propelling movement to the patient in vivo, and puncture auxiliary implement leads the puncture needle. The puncture auxiliary device ensures the stability and the accuracy of a puncture angle to a great extent when a clinician punctures, and can reduce the probability of puncture failure caused by misoperation. The invention is used in the technical field of medical instruments.)

1. A puncture assisting device characterized in that: including rotor plate (200) and fixed plate (100), rotor plate (200) rotates around the axis of the lateral wall of one of them perpendicular to fixed plate (100), be provided with the first angle indicating device who is used for instructing rotor plate (200) and fixed plate (100) to open and shut the angle between rotor plate (200) and fixed plate (100), it is connected with needle guide (300) to rotate on rotor plate (200), be provided with the second angle indicating device who is used for instructing rotor plate (200) and needle guide (300) relative rotation angle between rotor plate (200) and needle guide (300).

2. A puncture aid according to claim 1, wherein: the first angle indicating device comprises a first scale (103) and an indicating assembly (400), the indicating assembly (400) comprises a first sliding groove (410), a second sliding groove (420) and a sliding piece (430), the first sliding groove (410) is arranged on the fixed plate (100), the extending direction of the first sliding groove (410) is perpendicular to the rotating shaft of the rotating plate (200), one end of the first sliding groove (410) is arranged at the hinged end of the fixed plate (100), and the other end of the first sliding groove is communicated with the side wall of the fixed plate (100); the first scale (103) is arranged on the surface where the opening of the first sliding chute (410) is located, and the extending direction of the first scale (103) is consistent with the extending direction of the first sliding chute (410); the second sliding chute (420) is arranged on the side wall of the rotating plate (200), one end of the second sliding chute (420) is arranged at the hinged end of the rotating plate (200), and the other end of the second sliding chute is communicated with the side wall of the rotating plate (200); the sliding piece (430) comprises a first sliding block (431), a second sliding block (432) and a connecting block (433), the first sliding block (431), the connecting block (433) and the second sliding block (432) are sequentially and fixedly connected, the first sliding block (431) is arranged in the first sliding groove (410) and is connected with the first sliding groove (410) in a sliding mode, and the second sliding block (432) is arranged in the second sliding groove (420) and is connected with the second sliding groove (420) in a sliding mode.

3. A puncture aid according to claim 2, wherein: one side wall of the fixing plate (100) is provided with a scale wall (102), the scale wall (102) is perpendicular to a rotating shaft of the rotating plate (200), the first sliding groove (410) is formed in the scale wall (102), scale marks of the first scale (103) are arranged on one side, close to the second sliding block (432), of the first sliding block (431), the scale value of the first scale (103) is reduced along the extending direction of the first sliding groove (410), and the scale value of the first scale (103) is an angle value.

4. A puncture aid according to claim 2, wherein: one end, far away from connecting block (433), of first slider (431) is fixedly connected with first stopper (434), first stopper (434) extend to the direction that is close to second stopper (435), first stopper (434) and first slider (431) form the structure of "L" style of calligraphy, the cross-sectional shape of first spout (410) matches with the structure of "L" style of calligraphy that first stopper (434) and first slider (431) formed.

5. A puncture aid according to claim 2, wherein: one end, far away from the connecting block (433), of the second sliding block (432) is fixedly connected with a second limiting block (435), the second limiting block (435) is fixedly connected with the second sliding block (432), the second limiting block (435) and the second sliding block (432) are both arranged to be cylinders, the diameter of the second limiting block (435) is larger than that of the second sliding block (432), and the cross section of the second sliding groove (420) is T-shaped.

6. A puncture aid according to claim 1, wherein: the second angle indicating device comprises a second scale (311) and an indicating scale (201), the second scale (311) is arranged on the needle guide (300), the indicating scale (201) is arranged on the rotating plate (200), and the second scale (311) is arranged on the needle guide (300).

7. A puncture aid according to claim 6, wherein: needle guide (300) include carousel (310) and slider (320), carousel (310) are the round platform form of being close to rotor plate (200) external diameter crescent, carousel (310) rotate with rotor plate (200) and are connected, second scale (311) set up in the outer peripheral face of carousel (310).

8. A puncture aid according to claim 7, wherein: the improved structure of the needle guide plate is characterized in that the needle guide block (320) is arranged to be a round-corner rectangular block, a needle guide boss (330) is arranged on the surface, away from the rotating plate (200), of the needle guide block (320), a needle guide hole (331) is formed in the needle guide boss (330), the extending direction of the needle guide hole (331) is parallel to the upper surface of the rotating plate (200), and the needle guide hole (331) penetrates through the needle guide boss (330).

9. A puncture aid according to claim 8, wherein: the guide pin boss (330) is provided with a notch, the notch is arranged at one end, far away from the guide pin block (320), of the guide pin boss (330) and penetrates through the guide pin boss (330), and the notch is communicated with the guide pin hole (331).

10. A puncture aid according to claim 1, wherein: the fixing plate (100) is provided with a placing groove (101), the fixing plate (100) is in an Contraband-shaped structure due to the placing groove (101), the rotating plate (200) is arranged in the placing groove (101) and is rotatably connected with two side walls of the placing groove (101), and the hinged end of the rotating plate (200) is arranged at the Contraband-shaped opening of the fixing plate (100).

Technical Field

The invention relates to the technical field of medical instruments, in particular to a puncture auxiliary device.

Background

Common vascular interventional catheters, such as central venous catheters, hemodialysis catheters, PICCs, introducer sheaths, etc., are typically cannulated using the seldinger (seldinger) puncture method: the basic principle of Seldinger is to insert a puncture needle into a blood vessel prior to cannulation, to establish a cannulation channel using a guide wire, and to advance a catheter along the guide wire into the blood vessel.

In clinical catheterization, the angle and direction of puncture also need to be adjusted according to actual conditions due to differences in puncture sites, the condition of the patient, the operation habits of the doctor, and the like. At present, when a clinician performs puncture operation, the clinician generally controls the puncture angle direction by hands to directly insert into a blood vessel, the clinician performs operation according to own experience more, and for a doctor with insufficient clinical experience, certain error may occur in each operation to influence the puncture success rate and stability.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: a puncture assisting device is provided to solve one or more technical problems in the prior art and to provide at least one of a useful choice and a useful condition.

The solution of the invention for solving the technical problem is as follows:

the utility model provides a puncture auxiliary device, includes rotor plate and fixed plate, the rotor plate rotates around the axis of the lateral wall of one of them perpendicular to fixed plate, be provided with the first angle indicating device who is used for instructing rotor plate and fixed plate opening and shutting angle between rotor plate and the fixed plate, it is connected with the needle guide to rotate on the rotor plate, be provided with the second angle indicating device who is used for instructing rotor plate and needle guide relative rotation angle between rotor plate and the needle guide.

Through above-mentioned technical scheme, when preparing to keep somewhere the pipe for the disease puncture, medical personnel are according to clinical actual conditions through adjusting the opening and shutting angle between rotor plate and the fixed plate and the relative rotation angle between needle guide and the rotor plate. After the adjustment is finished, the medical staff pushes and inserts the puncture needle into the body of the patient, the puncture auxiliary device guides the puncture needle, and the shaking and the displacement of the puncture needle in the puncture process are reduced. The puncture auxiliary device ensures the stability and the accuracy of a puncture angle to a great extent when a clinician punctures, and can reduce the probability of puncture failure caused by misoperation.

As a further improvement of the above technical solution, the first angle indicating device includes a first scale and an indicating assembly, the indicating assembly includes a first sliding chute, a second sliding chute and a sliding member, the first sliding chute is disposed on the fixed plate, an extending direction of the first sliding chute is perpendicular to the rotating shaft of the rotating plate, one end of the first sliding chute is disposed at the hinged end of the fixed plate, and the other end of the first sliding chute is communicated with the side wall of the fixed plate; the first scale is arranged on the surface where the opening of the first sliding chute is located, and the extending direction of the first scale is consistent with the extending direction of the first sliding chute; the second sliding chute is arranged on the side wall of the rotating plate, one end of the second sliding chute is arranged at the hinged end of the rotating plate, and the other end of the second sliding chute is communicated with the side wall of the rotating plate; the sliding piece comprises a first sliding block, a second sliding block and a connecting block, the first sliding block, the connecting block and the second sliding block are fixedly connected in sequence, the first sliding block is arranged in the first sliding groove and connected with the first sliding groove in a sliding mode, and the second sliding block is arranged in the second sliding groove and connected with the second sliding groove in a sliding mode.

Through above-mentioned technical scheme, at the in-process of adjusting first angle, medical personnel can more audio-visual understanding the numerical value of current first angle through first scale of first angle indicating device.

As a further improvement of the above technical solution, one of the side walls of the fixed plate is provided with a scale wall, the scale wall is perpendicular to the rotation axis of the rotation plate, the first sliding groove is provided in the scale wall, the scale line of the first scale is provided on one side of the first sliding block close to the second sliding block, the scale value of the first scale is reduced along the extending direction of the first sliding groove, and the scale value of the first scale is an angle value.

Through above-mentioned technical scheme, the rotation angle is directly shown to the scale interval, does not need medical personnel to carry out the conversion calculation, makes the opening and shutting angle between rotor plate and the fixed plate more audio-visual present in medical personnel's the face.

As a further improvement of the technical scheme, one end, far away from the connecting block, of the first sliding block is fixedly connected with a first limiting block, the first limiting block extends towards the direction close to the second limiting block, the first limiting block and the first sliding block form an L-shaped structure, and the cross section of the first sliding groove is matched with the L-shaped structure formed by the first limiting block and the first sliding block.

Through above-mentioned technical scheme, first stopper is used for restricting the position between sliding member and the fixed plate, avoids first angle regulation's in-process first slider to deviate from first spout from the width direction of fixed plate, avoids puncture efficiency to reduce.

As a further improvement of the technical scheme, one end, far away from the connecting block, of the second sliding block is fixedly connected with a second limiting block, the second limiting block is fixedly connected with the second sliding block, the second limiting block and the second sliding block are both arranged to be cylinders, the diameter of the second limiting block is larger than that of the second sliding block, and the cross section of the second sliding groove is T-shaped.

Through above-mentioned technical scheme, the second stopper is used for further limiting the position between sliding member and the fixed plate, avoids the in-process second slider of first angle regulation to deviate from the second spout from the width direction of fixed plate, avoids puncture efficiency to reduce.

As a further improvement of the above technical solution, the second angle indicating device includes a second scale and an indication scale, the second scale is disposed on the needle guide, the indication scale is disposed on the rotating plate, and the second scale is disposed on the needle guide.

Through above-mentioned technical scheme, at the in-process of adjusting the second angle, medical personnel can more audio-visual understanding the numerical value of current second angle through second angle indicating device's second scale.

As a further improvement of the technical scheme, the needle guide comprises a rotary table and a needle guide block, the rotary table is in a round table shape with the outer diameter gradually increasing close to the rotating plate, the rotary table is rotatably connected with the rotating plate, and the second scales are arranged on the peripheral surface of the rotary table.

Through the technical scheme, the round platform-shaped rotary table enables the second scales arranged on the rotary table to reduce visual errors between the second scales and the indication scales, so that the rotating angle of the rotary table is more accurate.

As a further improvement of the above technical scheme, the guide pin block is set to be a round-angle rectangular block, a guide pin boss is arranged on the surface of the guide pin block away from the rotating plate, a guide pin hole is formed in the guide pin boss, the extending direction of the guide pin hole is parallel to the upper surface of the rotating plate, and the guide pin hole penetrates through the guide pin boss.

Through above-mentioned technical scheme, rotate guide pin piece medical personnel's finger and support the lateral wall of guide pin piece and drive the guide pin piece afterwards and rotate, compare in the circumstances of avoiding slipping the hand in using cylindric guide pin piece in the very big degree and take place.

As a further improvement of the above technical scheme, the guide pin boss is provided with a notch, the notch is arranged at one end of the guide pin boss far away from the guide pin block and penetrates through the guide pin boss, and the notch is communicated with the guide pin hole.

Through above-mentioned technical scheme, the guide pin hole leads the puncture needle, makes the puncture needle insert to the patient internal along fixed direction propelling movement.

As a further improvement of the above technical solution, the fixed plate is provided with a placing groove, the placing groove enables the fixed plate to be in a structure of 'Contraband', the rotating plate is arranged in the placing groove and is rotatably connected with two side walls of the placing groove, and the hinged end of the rotating plate is arranged at the opening of 'Contraband' shape of the fixed plate.

Through above-mentioned technical scheme, can dismantle other spare parts of puncture appurtenance when need not using puncture appurtenance, fold fixed plate and rotor plate afterwards, reduce the holistic occupation space of puncture appurtenance.

The invention has the beneficial effects that: when preparing to puncture the indwelling catheter for the patient, the medical staff adjusts the opening and closing angle between the rotating plate and the fixed plate and the relative rotation angle between the needle guide and the rotating plate according to the clinical practical situation. After the adjustment is finished, the medical staff pushes and inserts the puncture needle into the body of the patient, the puncture auxiliary device guides the puncture needle, and the shaking and the displacement of the puncture needle in the puncture process are reduced. The puncture auxiliary device ensures the stability and the accuracy of a puncture angle to a great extent when a clinician punctures, and can reduce the probability of puncture failure caused by misoperation.

The invention is used in the technical field of medical instruments.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a left side view of an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of section A-A of FIG. 2;

fig. 4 is a schematic top view of an embodiment of the present invention.

In the figure, 100, a fixing plate; 101. a placement groove; 102. a graduated wall; 103. a first scale; 200. a rotating plate; 201. indicating scales; 300. a needle guide; 310. a turntable; 311. a second scale; 320. a guide pin block; 330. a guide pin boss; 331. a guide pin hole; 400. an indicating component; 410. a first chute; 420. a second chute; 430. a sliding member; 431. a first slider; 432. a second slider; 433. connecting blocks; 434. a first stopper; 435. and a second limiting block.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1 and 2, a puncture assisting device includes a fixed plate 100 and a rotating plate 200. The needle guide 300 is rotatably connected to the rotating plate 200.

Referring to fig. 1 and 2, the fastening plate 100 is formed with a placement groove 101, and the placement groove 101 allows the fastening plate 100 to have an Contraband-shaped structure, and the Contraband-shaped structure opens forward. The left side wall of the fixing plate 100 is provided as a scale wall 102. The rotating plate 200 is a rectangular plate, and the rotating plate 200 is disposed in the placing chute 101 and is rotatably coupled to two opposite sidewalls of the placing chute 101. The front end of the rotating plate 200 is a hinged end, and the hinged end of the rotating plate 200 is arranged at the opening of the fixed plate 100 in the shape of the letter "Contraband". The side wall of the hinged end of the rotating plate 200 is a semicircular surface, the side wall of the hinged end of the fixing plate 100 is a semicircular surface, the semicircular surface of the rotating plate 200 and the semicircular surface of the fixing plate 100 are coaxially arranged, and the radius of the two semicircular surfaces is the same. The rotation axis of the rotation plate 200 is provided at the center of the fixed plate 100 in the plate thickness direction.

Referring to fig. 1 and 2, a first angle indicating means is provided between the pivotal plate 200 and the fixed plate 100. The first angle indicating means includes a first scale 103 and an indicating assembly 400. The indicating assembly 400 includes a first runner 410, a second runner 420, and a glide 430.

Referring to fig. 2 and 3, the first sliding groove 410 is disposed on the scale wall 102, one end of the first sliding groove 410 is disposed at one end close to the rotation shaft of the rotation plate 200, the extending direction of the first sliding groove 410 is identical to the length direction of the fixed plate 100, and the other end of the first sliding groove 410 is communicated with the side wall of the fixed plate 100 far away from the hinge end. The first chute 410 is formed in an L-shape in cross section.

Referring to fig. 2 and 3, the first scale 103 is disposed on the scale wall 102, an extending direction of the first scale 103 is consistent with an extending direction of the first sliding groove 410, a scale line of the first scale 103 is disposed above the first sliding groove 410, a scale value of the first scale 103 is disposed below the first sliding groove 410, the scale value of the first scale 103 is an angle value of a minimum included angle between the fixed plate 100 and the rotating plate 200, a numerical value of the first scale 103 decreases along the extending direction of the first sliding groove 410, and the scale line of the first scale 103 corresponds to a position of the scale value.

Referring to fig. 2 and 3, the second sliding groove 420 is disposed on the side wall of the rotating plate 200, and the second sliding groove 420 and the first sliding groove 410 are disposed on the same side of the puncture assisting device. One end of the second sliding chute 420 is disposed at the hinged end of the rotating plate 200, the other end of the second sliding chute is communicated with the side wall of the rotating plate 200 far away from the hinged end, and the extending direction of the second sliding chute 420 is the same as the length direction of the rotating plate 200. The cross-sectional shape of the second sliding groove 420 is set to be "T" shaped and the small end faces the connecting block 433.

Referring to fig. 2 and 3, the glide 430 is integrally formed. The sliding member 430 includes a first slider 431, a second slider 432, and a connecting block 433. The first slider 431, the connecting block 433, and the second slider 432 are fixedly connected in this order, so that the slider 430 has a substantially Contraband-shaped structure. A first limit block 434 extends from one end of the first slider 431 far away from the connecting block 433 to the second slider 432, and the first slider 431 and the first limit block 434 are in an L-shaped structure matched with the first sliding groove 410. The first limiting block 434 and the first sliding block 431 are disposed in the first sliding groove 410 and slidably connected to the first sliding groove 410. One end of the second sliding block 432 far away from the connecting piece is fixedly connected with a second limiting block 435. The second stopper 435 and the second slider 432 are both configured as a cylinder, and the diameter of the second stopper 435 is larger than the diameter of the second slider 432. The second limiting block 435 and the second sliding block 432 are both disposed in the second sliding groove 420 and are both connected with the second sliding groove 420 in a sliding manner.

Referring to fig. 3 and 4, the needle guide 300 is integrally formed, and the needle guide 300 includes a turntable 310 and a needle block 320. The turntable 310 is rotatably connected to the rotating plate 200, and the turntable 310 is in the shape of a circular truncated cone with an outer diameter gradually increasing toward the rotating plate 200. The slider 320 is fixedly connected to the surface of the turntable 310 away from the pivotal plate 200. Guide pin piece 320 is fillet rectangle piece, and the surface that rotor plate 200 was kept away from to guide pin piece 320 is provided with guide pin boss 330, and guide pin hole 331 and breach have been seted up to guide pin boss 330, and guide pin hole 331 communicates each other with the breach and all runs through guide pin boss 330, and guide pin hole 331 is on a parallel with the upper surface of rotor plate 200 with the extending direction of breach.

Referring to fig. 4, a second angle indicating means is provided between the needle guide 300 and the rotating plate 200. The second angle indicating means includes a second scale 311 and an indicating scale 201. The second scale 311 is disposed on the sidewall of the turntable 310 and extends along the sidewall of the turntable 310, and the indication scale 201 is disposed on the side of the needle guide 300 near the hinged end of the rotating plate 200.

All parts of the puncture auxiliary device are made of hard plastics.

The implementation principle of the embodiment is as follows: when preparing to detain the pipe for the disease puncture, medical personnel adjust the angle of puncture auxiliary implement according to clinical actual conditions, and medical personnel lie fixed plate 100 at the position that the disease needs the puncture earlier, if the puncture position unevenness, can use the sticky tape to fix fixed plate 100 and disease. After the puncture assisting device is fixed, the effect of adjusting the opening and closing angle between the rotating plate 200 and the fixing plate 100 is achieved by adjusting the position of the connecting block 433, the front end of the connecting block 433 is used as a reading end, and when the scale value indicated by the front end of the connecting block 433 is a set value, the first angle adjustment is completed. Then the medical staff inserts the puncture needle tube into the guide pin hole 331, and the medical staff's finger abuts against the side wall of the guide pin block 320 and then rotates the guide pin block 320 or directly adjusts the angle of the guide pin 300 by rotating the puncture needle tube. After the second angle is adjusted, the medical staff inserts the puncture needle into the patient along the pushing of the guide pin hole 331, and the puncture is completed.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.