Fixator for internal arteriovenous fistula puncture needle

Abstract

The utility model provides an internal arteriovenous fistula puncture needle fixator, which belongs to the field of medical auxiliary instruments and comprises an application body, a fixing seat is arranged in the middle of the top of the application body, a limiting seat is movably connected to the top of the fixing seat, and arc-shaped clamping grooves are formed in opposite sides of the fixing seat and the limiting seat. Strip-shaped grooves are formed in the middles of the opposite sides of the two arc-shaped clamping grooves, the inner walls of the two strip-shaped grooves are connected with the surface of the puncture needle tube in a clamped mode through limiting assemblies, and auxiliary assemblies are arranged on the two sides of the top of the application body. When a puncture needle tube moves, two limiting pastes are matched to drive two arc-shaped elastic blocks to move, the two arc-shaped elastic blocks drive two sliding blocks to move on the surface of a guide rod in two strip-shaped grooves, and the two arc-shaped elastic blocks are matched with the two strip-shaped grooves to conduct reciprocating extrusion on two sets of movable rings and limiting springs; and the puncture needle tube is located in a small moving range in cooperation with the elasticity of the two sets of limiting springs.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical auxiliary instrument field, concretely is a kind of arteriovenous fistula puncture needle fixer. BACKGROUND

[0002] Arteriovenous fistula is the small operation of anastomosis of patient's artery and adjacent vein, establishes permanent blood vessel passage, and is mainly used for the treatment of maintenance hemodialysis patient, after arteriovenous fistula puncture, needle is easily run due to pipeline gravity, so needle handle is usually fixed with adhesive tape to prevent needle head from slipping, and adhesive tape is also needed to fix puncture needle tube to prevent needle head from swinging and running, by searching the application No. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of arteriovenous fistula puncture needle fixer to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of arteriovenous fistula puncture needle fixer, including application body, the middle part of the top of the application body is provided with fixed seat, the top of the fixed seat is movably connected with limit seat, the opposite side of the fixed seat and limit seat is all provided with arc-shaped slot, the middle part of the opposite side of two arc-shaped slots is all provided with strip slot, the inner wall of two strip slots is connected with the surface of puncture needle tube by limit component and is engaged, the both sides of the top of the application body are equipped with auxiliary assembly;

[0005] The limiting assembly comprises two guide rods installed on the inner walls of the two strip-shaped grooves, limiting springs are sleeved on the surfaces of the two ends of the two guide rods, moving rings are fixedly connected to the opposite ends of the two groups of limiting springs, two sliders are installed and connected to the opposite sides of the two groups of moving rings, two arc-shaped elastic blocks are fixedly connected to the opposite sides of the two sliders, the side edges of the two arc-shaped elastic blocks are slidably connected with the inner walls of two arc-shaped clamping grooves, limiting stickers are arranged on the inner walls of the opposite sides of the two arc-shaped elastic blocks, and the inner walls of the two limiting stickers are adhesively connected with the surface of the puncture needle tube.

[0006] The auxiliary assembly comprises two fixed strips installed on the two sides of the top of the plaster body, the top of the two fixed strips is provided with an auxiliary plaster, one side of the bottom of the two auxiliary plasters is provided with a first magic sticker, and the surface of the two first magic stickers is adhesively connected with a second magic sticker arranged on the two side edges of the top of the plaster body.

[0007] As a preferred scheme of the utility model, the edge of one side of the fixing seat is provided with a mounting seat, the inner wall of the mounting seat is provided with a mounting shaft, the surface of the mounting shaft is rotationally connected with an adjusting block arranged on the edge of one side of the limiting seat, and the edges of the other sides of the fixing seat and the limiting seat are provided with adhesive strips.

[0008] As a preferred scheme of the utility model, the middle part of the top of the plaster body is provided with a connecting frame, and the bottom of the inner wall of the connecting frame is adhesively connected with the bottom of the fixing seat through a glue layer.

[0009] As a preferred scheme of the utility model, the two sides of the top of the plaster body are provided with two arc-shaped placing grooves, and the inner walls of the two groups of arc-shaped placing grooves are clampedly connected with the needle tube extension pipe.

[0010] As a preferred scheme of the utility model, the two ends of the two sliders are provided with through holes, and the inner walls of the two through holes are penetratingly connected with the surfaces of the two guide rods.

[0011] As a preferred scheme of the utility model, the surfaces of the two auxiliary plasters and the plaster body are provided with a plurality of air holes.

[0012] As a preferred scheme of the utility model, the middle part of the bottom of the plaster body is provided with a skin care layer, and the two sides of the bottom of the plaster body are provided with third magic stickers.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) by placing the puncture needle tube in the fixed seat and the arc-shaped clamping groove of the limiting seat, two arc-shaped elastic blocks are fixed by two limiting stickers, when the puncture needle tube moves, two arc-shaped elastic blocks are driven by two limiting stickers to move, two arc-shaped elastic blocks drive two sliders to move on the surface of the guide rod in two strip-shaped grooves, and two strip-shaped grooves reciprocatingly extrude two groups of moving rings and limiting springs, and the elasticity of the two groups of limiting springs makes the puncture needle tube in a smaller moving range, avoiding the separation of the puncture needle tube from the patient's arteriovenous vessel and affecting the treatment;

[0015] (2) by placing the extension tube of the puncture needle tube in the inner wall of the two groups of arc-shaped placement grooves, the auxiliary stickers on the two fixed strips limit it, and the two first magic stickers at the bottom of the extension tube cooperate with the two second magic stickers on the sticker body to fix the extension tube on the surface of the sticker body, thereby strengthening the fixation of the use of the puncture needle tube and improving the practicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the utility model;

[0017] Figure 2 It is a structure schematic view of the auxiliary assembly of the utility model;

[0018] Figure 3 It is a structure schematic view of the limiting assembly of the utility model.

[0019] In the drawing: 1, sticker body; 11, fixed seat; 12, limiting seat; 13, arc-shaped clamping groove; 14, strip-shaped groove; 15, puncture needle tube; 16, second magic sticker; 17, mounting seat; 18, mounting shaft; 19, adjusting block; 110, adhesive strip; 111, connecting frame; 112, adhesive layer; 113, arc-shaped placement groove; 114, skin care layer; 115, third magic sticker;

[0020] 2, limiting assembly; 21, guide rod; 22, limiting spring; 23, moving ring; 24, slider; 25, arc-shaped elastic block; 26, limiting sticker; 27, through hole;

[0021] 3, auxiliary assembly; 31, fixed strip; 32, auxiliary sticker; 33, first magic sticker. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is part of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Please refer to Figure 1 - Figure 3 The utility model provides a arteriovenous fistula puncture needle fixer, including application body 1, the middle part of application body 1 top is provided with fixed seat 11, the top of fixed seat 11 is movably connected with limiting seat 12, the opposite side of fixed seat 11 and limiting seat 12 is all set up arc -shaped clamping slot 13, the middle part of the opposite side of two arc -shaped clamping slots 13 is all set up strip slot 14, the inner wall of two strip slots 14 is connected with the surface of puncture needle tube 15 through limiting component 2, the both sides of application body 1 top are equipped with auxiliary assembly 3,

[0024] Please refer to Figure 3 Limiting component 2, limiting component 2 includes two guide rods 21 installed in the inner wall of two strip slots 14, the surface of both ends of two guide rods 21 is all set with limiting spring 22, the opposite end of two groups of limiting spring 22 is all fixedly connected with moving ring 23, the opposite side of two groups of moving ring 23 is installed with both ends of two sliders 24, the opposite side of two sliders 24 is fixedly connected with one side of two arc -shaped elastic blocks 25, the side of two arc -shaped elastic blocks 25 is slidably connected with the inner wall of two arc -shaped clamping slots 13, the inner wall of the opposite side of two arc -shaped elastic blocks 25 is equipped with limiting paste 26, and the inner wall of two limiting pastes 26 is adhesively connected with the surface of puncture needle tube 15.

[0025] Specific use: the puncture needle tube 15 is placed in the arc -shaped clamping slot 13 of fixed seat 11 and limiting seat 12, and two arc -shaped elastic blocks 25 cooperate with two limiting pastes 26 to adhesively fix the puncture needle tube 15. When the puncture needle tube 15 moves, two arc -shaped elastic blocks 25 are driven to move by two limiting pastes 26, two arc -shaped elastic blocks 25 drive two sliders 24 to move on the surface of guide rod 21 in two strip slots 14, and reciprocatingly extrude two groups of moving ring 23 and limiting spring 22 in cooperation with two strip slots 14. In cooperation with the elasticity of two groups of limiting spring 22, the puncture needle tube 15 is in a smaller movement range, avoiding its separation from the arteriovenous vessel of the patient and affecting the treatment.

[0026] Please refer to Figure 2The auxiliary assembly 3 comprises two fixed strips 31 installed on both sides of the top of the application body 1, and the top of each of the two fixed strips 31 is provided with an auxiliary application 32, and the bottom of each of the two auxiliary applications 32 is provided with a first magic tape 33, and the surface of each of the two first magic tapes 33 is connected with the second magic tape 16 provided on the top of the two sides of the application body 1.

[0027] In specific use, the extension pipe of the puncture needle tube 15 is clamped in the inner wall of the two groups of arc-shaped placement grooves 113, and the two auxiliary applications 32 on the two fixed strips 31 limit the extension pipe, and the two first magic tapes 33 on the bottom of the two fixed strips 31 cooperate with the two second magic tapes 16 on the application body 1 to fix the extension pipe on the surface of the application body 1, so that the use of the puncture needle tube 15 is strengthened and fixed.

[0028] Please refer to Figure 2 The edge of one side of the fixed seat 11 is provided with a mounting seat 17, the inner wall of the mounting seat 17 is provided with a mounting shaft 18, the surface of the mounting shaft 18 is rotationally connected with the adjusting block 19 provided on the edge of one side of the limiting seat 12, and the edges of the other sides of the fixed seat 11 and the limiting seat 12 are both provided with adhesive strips 110.

[0029] In specific use, the adjusting block 19 rotates on the surface of the mounting shaft 18 in the inner wall of the mounting seat 17, thereby driving the limiting seat 12 to rotate, cooperating with the two adhesive strips 110 to adhesively fix the fixed seat 11 and the limiting seat 12, and completing the fixation of the puncture needle tube 15.

[0030] Please refer to Figure 2 The top of the application body 1 is provided with a connecting frame 111 in the middle, and the bottom of the inner wall of the connecting frame 111 is adhesively connected with the bottom of the fixed seat 11 through a glue layer 112.

[0031] In specific use, the bottom of the fixed seat 11 is adhesively fixed with the bottom of the inner wall of the connecting frame 111 through the glue layer 112, so as to facilitate the installation and disassembly of the fixed seat 11 and the application body 1.

[0032] Please refer to Figure 2 The top of the application body 1 is provided with two arc-shaped placement grooves 113 on both sides, and the inner walls of the two groups of arc-shaped placement grooves 113 can be clamped and connected with the extension pipe of the needle tube.

[0033] In specific use, the surface of the extension pipe of the needle tube can be clamped with the inner walls of the two groups of arc-shaped placement grooves 113, so as to facilitate the increase of the stability of the device in fixing the puncture needle tube 15.

[0034] Please refer to Figure 3 The two ends of the two sliding blocks 24 are both provided with through holes 27, and the inner walls of the two through holes 27 are penetratingly connected with the surfaces of the two guide rods 21.

[0035] Specific use: two sliding block 24 cooperation through hole 27 in the surface of two guide rod 21 move, so as to facilitate the movement of two arc elastic block 25 limit.

[0036] Please refer to Figure 2 , two auxiliary patch 32 and the surface of the patch body 1 are provided with a plurality of air holes.

[0037] Specific use: two auxiliary patch 32 and the surface of the patch body 1 are provided with a plurality of air holes. Improve the air permeability of the patient's patch part.

[0038] Please refer to Figure 2 , the bottom of the patch body 1 is provided with a skin care layer 114, and the bottom of the patch body 1 is provided with a third magic paste 115.

[0039] Specific use: the skin care layer 114 in the middle of the bottom of the patch body 1 improves the comfort of the patient, and the two third magic pastes 115 in the bottom of the patch body 1 facilitate the adhesion and fixation of the whole structure and the skin of the patient.

[0040] Use, the puncture needle tube 15 is placed in the arc shaped slot 13 of the fixed seat 11 and the limiting seat 12, two arc elastic blocks 25 cooperate with two limiting stickers 26 to adhere and fix the puncture needle tube 15, when the puncture needle tube 15 moves, two arc elastic blocks 25 are driven to move by two limiting stickers 26, two arc elastic blocks 25 drive two sliding blocks 24 to move on the surface of the guide rod 21 in two strip grooves 14, and cooperate with two strip grooves 14 to reciprocatingly extrude two groups of moving rings 23 and limiting springs 22, cooperate with the elasticity of two groups of limiting springs 22 to make the puncture needle tube 15 in a smaller moving range, avoid its separation from the patient's arteriovenous vessel and affect the treatment.

[0041] The contents not described in detail in the description belong to the prior art known to those skilled in the art, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An internal arteriovenous fistula puncture needle holder characterized by, The dressing body (1) includes a fixing seat (11) at the middle of the top of the dressing body (1). The top of the fixing seat (11) is movably connected to a limiting seat (12). An arc-shaped groove (13) is provided on the opposite side of the fixing seat (11) and the limiting seat (12). A strip groove (14) is provided in the middle of the opposite side of the two arc-shaped grooves (13). The inner walls of the two strip grooves (14) are engaged with the surface of the puncture needle tube (15) through a limiting component (2). Auxiliary components (3) are provided on both sides of the top of the dressing body (1). The limiting component (2) includes two guide rods (21) installed on the inner walls of two strip grooves (14). The surfaces of both ends of the two guide rods (21) are fitted with limiting springs (22). The opposite ends of the two sets of limiting springs (22) are fixedly connected with moving rings (23). The opposite sides of the two sets of moving rings (23) are installed and connected to the two ends of two sliders (24). The opposite sides of the two sliders (24) are fixedly connected to one side of two arc-shaped elastic blocks (25). The sides of the two arc-shaped elastic blocks (25) are slidably connected to the inner walls of the two arc-shaped slots (13). The inner walls of the opposite sides of the two arc-shaped elastic blocks (25) are provided with limiting stickers (26). The inner walls of the two limiting stickers (26) are bonded to the surface of the puncture needle tube (15). The auxiliary component (3) includes two fixing strips (31) installed on both sides of the top of the dressing body (1). Each of the two fixing strips (31) is provided with an auxiliary dressing (32) at the top. Each of the two auxiliary dressings (32) is provided with a first hook and loop fastener (33) on one side of the bottom. The surfaces of the two first hook and loop fasteners (33) are bonded to the second hook and loop fasteners (16) provided on both sides of the top of the dressing body (1).

2. The internal arteriovenous fistula puncture needle holder according to claim 1, characterized in that: The fixed seat (11) has an installation seat (17) on one side edge, and the inner wall of the installation seat (17) has an installation shaft (18). The surface of the installation shaft (18) is rotatably connected to the adjustment block (19) on one side edge of the limiting seat (12). The fixed seat (11) and the limiting seat (12) both have adhesive strips (110) on the other side edge.

3. The internal arteriovenous fistula puncture needle holder according to claim 1, characterized in that: The top of the patch body (1) is provided with a connecting frame (111), and the bottom of the inner wall of the connecting frame (111) is bonded to the bottom of the fixing seat (11) through an adhesive layer (112).

4. The internal arteriovenous fistula puncture needle holder according to claim 1, characterized in that: Two arc-shaped placement grooves (113) are provided on both sides of the top of the patch body (1), and the inner walls of the two sets of arc-shaped placement grooves (113) can be engaged and connected with the needle extension tube.

5. The internal arteriovenous fistula puncture needle holder according to claim 1, characterized in that: Both ends of the two sliders (24) are provided with through holes (27), and the inner walls of the two through holes (27) are interlocked with the surfaces of the two guide rods (21).

6. The internal arteriovenous fistula puncture needle holder according to claim 1, characterized in that: The surfaces of the two auxiliary dressings (32) and the dressing body (1) are provided with a number of ventilation holes.

7. The internal arteriovenous fistula puncture needle holder according to claim 1, characterized in that: The bottom of the patch body (1) is provided with a skin care layer (114) in the middle, and the bottom of the patch body (1) is provided with a third Velcro (115) on both sides.

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