Internal fistula puncture auxiliary device

Abstract

The utility model discloses an internal fistula puncture auxiliary device which comprises an arc-shaped ring buckle, two wing part branches are arranged at one end of the arc-shaped ring buckle, one ends of the two wing part branches are connected with the arc-shaped ring buckle, a splayed puncture area is formed between the two wing part branches, and limiting strips are arranged on the wing part branches. The two ends of each limiting strip are detachably connected with the top faces of the two wing part supports respectively, positioning points are arranged on the limiting strips, and the positioning points on the multiple limiting strips are distributed on the same vertical straight line. The limiting strips are arranged, the positioning points formed on the limiting strips at equal intervals correspond to the positions to be punctured one by one, and therefore the problem that the distance between every two adjacent puncture points is too small or too large is solved. Furthermore, when the puncture needle is used, the puncture needle can be detached one by one from the outside to the arc-shaped buckle, so that the next puncture position can be accurately and clearly shown when the puncture needle is repeatedly used, and the puncture sequence cannot be confused.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an internal fistula puncture auxiliary device. Background Art

[0002] Arteriovenous fistula is a minor surgery for vascular anastomosis. The artery near the wrist of the forearm and the adjacent vein are sutured so that arterial blood flows in the anastomosed vein, forming an arteriovenous fistula. Arteriovenous fistula puncture is often required before hemodialysis treatment. In order to prevent multiple punctures at one puncture point from affecting the elasticity of the patient's blood vessels, the existing technology often uses a rope ladder puncture method to perform multiple fistula punctures.

[0003] At present, when performing rope ladder puncture, medical staff mostly judge the location of the puncture point based on vision and experience, and further draw a vascular puncture plan in advance, and then take pictures and compare them during puncture. However, it is difficult to achieve standard rope ladder puncture in both methods, and it is easy to have the phenomenon of the puncture point distance being too small, the puncture distance being too large, or the confusion of the puncture order resulting in repeated punctures. Utility Model Content

[0004] The utility model aims to provide an internal fistula puncture auxiliary device to solve the technical problem in the prior art that the puncture point position is not accurate due to reliance on vision and experience judgment.

[0005] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0006] An internal fistula puncture auxiliary device, comprising an arc-shaped ring buckle, wherein one end of the arc-shaped ring buckle is provided with two wing branches, one end of the two wing branches is connected to the arc-shaped ring buckle, and the other ends of the two wing branches are mutually separated and extended to the outside, and an eight-shaped puncture area is formed between the two wing branches;

[0007] A plurality of limiting strips are arranged in equidistant order on the wing branches, and the two ends of the limiting strips are detachably connected to the top surfaces of the two wing branches respectively. Positioning points are provided on the limiting strips, and the positioning points on the plurality of limiting strips are distributed on the same vertical straight line to calibrate the plurality of puncture positions of the rope ladder puncture method.

[0008] As a preferred solution of the utility model, a through hole for passing a calibration pen is provided at the positioning point.

[0009] As a preferred solution of the utility model, a plastic base is arranged in the through hole, a compression elastic member is arranged on the plastic base, a calibration pen is arranged on the compression elastic member, and a height limiter for limiting the position of the calibration pen is also arranged in the through hole.

[0010] As a preferred solution of the utility model, a plurality of balls are rollingly arranged on the inner wall of the arc-shaped ring buckle, and the arc-shaped ring buckle is slidably connected to the skin surface through the balls.

[0011] As a preferred solution of the utility model, a storage groove is provided on the outer wall of the arc-shaped ring buckle, the width of the storage groove is not less than the width of the limiting strip, and magnetic suction parts with opposite magnetic properties are provided in the storage groove and in the middle of the limiting strip.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model utilizes wing branches to form an eight-shaped puncture area, and sequentially arranges limiting strips above the area. The positioning points formed equidistantly on the limiting strips correspond to the positions to be punctured one by one, thereby ensuring that the distance between adjacent puncture points is not too small or too large.

[0014] Furthermore, the limiting strips are detachably mounted on the wing branches, so that they can be removed one by one from the outside toward the arc-shaped ring buckle during use, and the next puncture position can be accurately indicated during repeated use without confusing the puncture sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model, specifically a schematic diagram without a calibration pen;

[0017] Figure 2 It is a structural schematic diagram of the positioning point in the utility model.

[0018] The numbers in the figure represent the following:

[0019] 1. Arc-shaped buckle; 2. Wing branch; 3. Figure-eight puncture area; 4. Limiting strip; 5. Positioning point; 6. Perforation; 7. Plastic base; 8. Compression elastic part; 9. Calibration pen; 10. Height limiter; 11. Storage slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 to Figure 2 As shown, the utility model provides a fistula puncture auxiliary device, including an arc-shaped ring buckle 1, two wing branches 2 are arranged at one end of the arc-shaped ring buckle 1, one end of the two wing branches 2 is connected to the arc-shaped ring buckle 1, and the other ends expand and extend away from each other to the outside, forming an eight-shaped puncture area 3 between the two wing branches 2.

[0022] A plurality of limiting strips 4 are arranged in equidistant order on the wing branch 2, and both ends of the limiting strips 4 are detachably connected to the top surfaces of the two wing branches 2, respectively. Positioning points 5 are provided on the limiting strips 4, and the positioning points 5 on the plurality of limiting strips 4 are distributed on the same vertical straight line to calibrate a plurality of puncture positions of the rope ladder puncture method.

[0023] The arc-shaped buckle 1 is used to install the whole device on the arm. The arc-shaped buckle 1 can be set to a shape that conforms to the outer contour of the arm, and a material with a certain elastic deformation ability is selected. When it is used, it can be directly buckled on the arm, so as to achieve the purpose of quick installation. After the arc-shaped buckle 1 is installed on the hand, the position of the wing branch 2 is also roughly determined, and then the body surface can be punctured through the eight-shaped puncture area 3, the limiting strip 4 and the positioning point 5.

[0024] When used specifically, it is possible to draw a blood vessel pattern to be punctured on the skin surface, and then use the device or not to perform the first puncture to determine the starting puncture position. Afterwards, during the second puncture, first install the arc-shaped ring buckle 1 on the hand, and then align the positioning point 5 on the distal (far away from the arc-shaped ring buckle 1) limiting strip 4 with the puncture point of the starting puncture position. At this time, all puncture positions arranged linearly and equidistantly are calibrated by the positioning points 5 on the limiting strips 4, and the positioning point 5 marks the actual puncture point position by using a calibration pen 9 to pass through the perforation 6 set at the positioning point 5, thereby marking on the skin surface. In order to further prevent the needle tip from piercing the marking point and carrying the pen tip oil mark into the subcutaneous tissue, the position of the positioning point 5 can be set slightly higher than the actual puncture point position, or the medical staff can insert the needle below the marking point position during manual puncture, thereby avoiding the needle tip from carrying the oil mark.

[0025] After the positioning point 5 on the first limiting strip 4 at the far end is aligned with the puncture point of the starting puncture position, the position of the positioning point 5 on the second limiting strip 4 is the position to be punctured this time. At this time, after marking the body surface, the first and second limiting strips 4 are removed, and the marked positions can be punctured. The outward-expanding eight-shaped puncture area 3 formed by the wing branch 2 can provide sufficient operating space to complete the puncture work. When the third puncture is required, the second limiting strip 4 is installed to align the positioning point 5 on it with the second puncture point, thereby determining the third puncture point, and then completing all punctures in sequence.

[0026] like Figure 2 As shown, further, a plastic base 7 is provided in the perforation 6, a compression elastic member 8 is provided on the plastic base 7, a calibration pen 9 is provided on the compression elastic member 8, and a height limiter 10 for limiting the position of the calibration pen 9 is also provided in the perforation 6. In this embodiment, the calibration pen 9 is synchronously provided on the overall device, so that the marking can be completed by directly pressing from the outside, and there is no need to temporarily find a pen and then align the perforation 6 to insert the mark, thereby improving the convenience of the device.

[0027] Among them, the compression elastic member 8 can be selected as a spring, a pressure plate is set on the calibration pen 9 to press the spring, and a vertical groove can also be set on the calibration pen 9. The height limiter 10 set in the through hole 6 is set in the vertical groove, thereby limiting the movement of the calibration pen 9 to prevent it from slipping out of the through hole 6.

[0028] In addition, in order to facilitate the position adjustment of the whole device on the patient's arm so that the positioning point 5 is aligned with the punctured point, a ball (not shown in the figure) is rolled on the inner wall of the arc-shaped ring buckle 1. The ball is in contact with the skin surface. Compared with direct contact with the skin surface, when the arc-shaped ring buckle 1 moves, the friction is smaller and it is more convenient to use. The ball is similar to the ball in the bearing. It is rolled and embedded in the inner wall of the arc-shaped ring buckle 1. It is rollingly connected with the arc-shaped ring buckle 1. When it contacts the skin surface, it can drive the arc-shaped ring buckle 1 to slide on the arm along the length of the arm, thereby reducing friction.

[0029] The inner wall of the arc-shaped ring buckle 1 is provided with a plurality of balls, and the arc-shaped ring buckle 1 is slidably connected to the skin surface through the balls.

[0030] Furthermore, when the device is performing puncture, the previous limiting strip 4 needs to be removed to expose the puncture position and provide a sufficient operation area, therefore, a storage groove 11 is provided on the outer wall of the arc-shaped ring buckle 1, the width of the storage groove 11 is not less than the width of the limiting strip 4, and magnetic attracting parts with opposite magnetic properties are provided in the storage groove 11 and in the middle of the limiting strip 4. Thus, the removed limiting strip 4 can be placed on the arc-shaped ring buckle 1 for storage, which can not only make the operation process more orderly, but also prevent the limiting strip 4 from being lost.

[0031] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A fistula puncture assisting device, characterized in that: It comprises an arc-shaped ring buckle (1), wherein one end of the arc-shaped ring buckle (1) is provided with two wing branches (2), one end of the two wing branches (2) is connected to the arc-shaped ring buckle (1), and the other ends thereof are extended outward away from each other, and an eight-shaped puncture area (3) is formed between the two wing branches (2); A plurality of limiting strips (4) are arranged in equidistant order on the wing branch (2), and the two ends of the limiting strip (4) are respectively detachably connected to the top surfaces of the two wing branches (2). Positioning points (5) are provided on the limiting strip (4), and the positioning points (5) on the plurality of limiting strips (4) are distributed on the same vertical straight line to mark a plurality of puncture positions of the rope ladder puncture method.

2. The fistula puncture assisting device according to claim 1, characterized in that: The positioning point (5) is provided with a through hole (6) for passing a calibration pen (9).

3. The fistula puncture assisting device according to claim 2, characterized in that: A plastic base (7) is arranged in the through hole (6), a compression elastic member (8) is arranged on the plastic base (7), a calibration pen (9) is arranged on the compression elastic member (8), and a height limiting member (10) for limiting the position of the calibration pen (9) is also arranged in the through hole (6).

4. The fistula puncture assisting device according to claim 3, characterized in that: A plurality of rolling balls are arranged on the inner wall of the arc-shaped ring buckle (1) so as to roll thereon, and the arc-shaped ring buckle (1) is slidably connected to the skin surface via the rolling balls.

5. The fistula puncture assisting device according to claim 4, characterized in that: A receiving groove (11) is provided on the outer wall of the arc-shaped ring buckle (1), the width of the receiving groove (11) is not less than the width of the limiting strip (4), and magnetic attracting parts with opposite magnetic properties are provided in the receiving groove (11) and in the middle of the limiting strip (4).

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