A guide wire twister

Abstract

A guide wire twister includes an upper top seat, a middle piece and a lower base. The upper top seat, the lower base and the middle piece are vertically opened at both ends and provided with cavities. The bottom protrusion of the upper top seat is inserted into the cavity of the top opening of the middle piece. The bottom end of the middle piece is inserted into the cavity of the top opening of the lower base and is rotatably connected thereto. A telescopic piece is provided between the bottom of the upper top seat and the cavity of the middle piece. A buckle is provided between the bottom of the upper top seat and the outer periphery of the upper part of the middle piece. A conical chuck is provided at the protruding end of the bottom of the upper top seat for fixing the guide wire. The present invention can quickly lock the guide wire and move the guide wire to a target position in any direction and distance, saving the time of the doctor operating the guide wire during surgery, improving the torque transmission and control accuracy of the guide wire, and is easy to operate and install, thereby improving work efficiency.

Description

Technical Field

[0001] The invention relates to a medical twister, in particular to a guide wire twister, which is mainly used for twisting and controlling a guide wire in interventional treatment. Background Art

[0002] According to the "China Cardiovascular Disease Report 2018" compiled by the National Center for Cardiovascular Disease, there are a total of 200 million cardiovascular disease patients in my country, and the mortality rate of cardiovascular disease has remained high. Doctors at home and abroad often use interventional medical devices, such as balloons and stents, to treat and diagnose cardiovascular diseases. Interventional medical devices such as balloons and stents need to rely on guidewire guidance when they are delivered in blood vessels. The guidance and control of the guidewire have a huge impact on the use and effect of interventional medical devices such as balloons and stents. The biggest problem of the existing guidewire twister during surgical treatment is that it is not conducive to the doctor to rotate and quickly fix the guidewire, and it is easy to slip when pushing and retracting the guidewire. Most guidewire twisters are tightened and locked by top hat buckles. Clinically, the guidewire twister is required to quickly lock the guidewire and is easy to operate. The present invention can facilitate the doctor's operation, can more accurately control the direction and travel distance of the guidewire, improve the torque transmission and control accuracy of the guidewire, shorten the time for the doctor to operate the guidewire to reach the target position, and reduce the pain of the patient. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a guide wire twister, which solves the problem that doctors waste precious surgical time due to inconvenient operation during surgery. The technical solution is as follows:

[0004] A guide wire twister comprises an upper top seat, a middle piece and a lower base. The upper top seat, the lower base and the middle piece are vertical structures with openings at both ends and cavities. The bottom protrusion of the upper top seat is inserted into the cavity of the top opening of the middle piece, and the bottom end of the middle piece is inserted into the cavity of the top opening of the lower base and is rotatably connected thereto. A telescopic piece is provided between the bottom of the upper top seat and the cavity of the middle piece, a buckle is provided between the bottom of the upper top seat and the outer periphery of the upper part of the middle piece, and a conical chuck is provided at the protruding end of the bottom of the upper top seat for fixing the guide wire.

[0005] The top opening of the upper seat is surrounded by a concave chamfered structure to facilitate the insertion of the guide wire.

[0006] A protrusion is radially arranged around the inner wall of the cavity in the middle section of the intermediate piece to form a limiting hole for limiting the position of the tapered chuck.

[0007] A protrusion is radially arranged around the inner wall of the cavity in the middle section of the intermediate piece to form a telescopic piece seat, which is arranged above the limiting hole.

[0008] The telescopic member is arranged around the outer periphery of the bottom protrusion of the upper top seat, the top end of the telescopic member contacts the bottom of the upper top seat, and the bottom end of the telescopic member contacts the telescopic member seat in the cavity of the middle member.

[0009] A button is arranged on the periphery of the middle section of the middle rotating rod.

[0010] The buckle comprises a buckle and a button. The buckle is arranged at the bottom of the upper top seat and is connected with the button buckle arranged at the periphery of the upper part of the middle piece.

[0011] The outer periphery of the middle part of the middle piece adopts a square structure.

[0012] An intermediate rotating rod is arranged in the cavity between the intermediate piece and the lower base, which facilitates the passage of the guide wire and provides internal fixation for the connection between the intermediate piece and the lower base, so that it is not easy to loosen.

[0013] A protrusion is radially arranged at the lower part of the middle piece, which matches with the radial grooves of the lower base and the inner wall of the cavity.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention can quickly lock the guide wire and move the guide wire to the target position in any direction and distance, saving the doctor's time in operating the guide wire during surgery, improving the torque transmission and control accuracy of the guide wire, and is easy to operate and install, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the upper seat structure of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the telescopic member of the present invention;

[0018] Figure 4 This is a schematic diagram of the middleware structure of the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the tapered chuck of the present invention;

[0020] Figure 6 It is a schematic diagram of the limiting hole structure of the present invention;

[0021] Figure 7 This is a schematic diagram of the structure of the middle rotating rod of the present invention;

[0022] Figure 8 This is a schematic diagram of the lower base structure of the present invention;

[0023] In the figure: 1, upper seat, 2, buckle, 3, telescopic part, 4, button, 5, conical chuck, 6, limiting hole, 7, middle rotating rod, 8, lower base, 9, middle part. DETAILED DESCRIPTION

[0024] The specific contents of the present invention are further explained below in conjunction with the accompanying drawings and embodiments:

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Example 1

[0027] like Figure 1-8 As shown, a guide wire twister is used. The guide wire is inserted from the top opening of the upper top seat 1, passed through the middle rotating rod 7, and passed through the bottom opening of the lower base 8. Then the upper top seat 1 is pressed downward to compress the telescopic member 3 surrounded by the protrusion at the bottom of the upper top seat 1, and the conical chuck 5 at the bottom end of the upper top seat 1 moves downward and hits the limiting hole 6, so that the conical chuck 5 shrinks inward to fix the guide wire. At the same time, the buckle 2 at the bottom of the upper top seat 1 moves downward until it is stuck by the buckle 4 to form a snap connection. At this time, the square part in the middle section of the intermediate piece 9 is rotated by hand. Since the square part is suitable for grasping, the guide wire can be easily rotated. The lower base 8 is rotated to tighten it with the handle of the instrument used in conjunction with it at any angle, which is convenient for installation.

[0028] Example 2

[0029] like Figure 1-8 As shown, after use, the button 4 is pressed to release the buckle connection between the buckle 2 and the button 4, the telescopic member 3 pops up, the upper seat 1 returns to its original position, the conical chuck 5 leaves the limiting hole 6 to release the guide wire, and the guide wire is taken out.

[0030] The above description is only a preferred embodiment of the present invention. The above specific implementation mode is illustrative rather than restrictive. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A guide wire twister, comprising an upper top seat, an intermediate piece and a lower base, characterized in that The upper top seat (1), the lower base (8) and the middle piece are structures with cavities provided at both ends of the vertical openings. The bottom protrusion of the upper top seat (1) is inserted into the cavity of the top opening of the middle piece (9). The bottom end of the middle piece (9) is inserted into the cavity of the top opening of the lower base (8) and is rotatably connected thereto. A telescopic member (3) is provided between the bottom of the upper top seat (1) and the cavity of the middle piece (9). A buckle is provided between the bottom of the upper top seat (1) and the outer periphery of the upper part of the middle piece (9). A conical chuck (5) is provided at the protruding end of the bottom of the upper top seat (1) for fixing the guide wire. The top opening of the upper top seat (1) is surrounded by a concave chamfered structure. The inner wall of the middle section of the cavity of the middle piece (9) is provided with a protrusion radially around it to form a limiting hole (6) for the conical chuck. (5) limiting; a protrusion is radially arranged around the inner wall of the middle section of the cavity of the middle piece (9), forming a telescopic piece seat, which is arranged above the limiting hole (6); the telescopic piece (3) is arranged around the outer periphery of the protrusion at the bottom of the upper top seat (1), the top end of the telescopic piece (3) contacts the bottom of the upper top seat (1), and the bottom end of the telescopic piece (3) contacts the telescopic piece seat in the cavity of the middle piece (9); the buckle comprises a buckle (2) and a button (4), the buckle (2) is arranged at the bottom of the upper top seat (1) and is buckled and connected with the button (4) arranged on the outer periphery of the upper part of the middle piece (9); an intermediate rotating rod (7) is arranged in the cavity of the middle piece (9) and the lower base (8); a protrusion is radially arranged at the lower part of the middle piece (9), which matches the radial groove on the inner wall of the cavity of the lower base (8).

2. A guide wire twister according to claim 1, characterized in that The middle periphery of the intermediate piece (9) adopts a square structure.

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