Medical guide wire flattening tool

Abstract

The utility model relates to the field of medical instruments, in particular to a medical guide wire flattening tool which comprises a flattening module and a cutting module, the flattening module comprises an upper pressing block and a lower pressing block, the upper pressing block is close to the lower pressing block through a flattening driving element, an upper pressing section is arranged at the bottom of the upper pressing block, and the width of the upper pressing section is consistent with that of a medical guide wire flattening section. The top of the lower pressing block is provided with a lower pressing section consistent with the upper pressing section in width, the upper pressing section and the lower pressing section are oppositely arranged, the cutting module comprises upper cutters, the two upper cutters are arranged on the two sides of the upper pressing section respectively, the upper cutters ascend and descend through a cutting driving element, and the cutting driving element and the upper pressing block ascend and descend synchronously. Combinations of various sizes are formed through extrusion cutting and flattening by means of cooperation of the upper cutter and the lower cutter in the flattening module, so that the problems of different elongation rates and different flattening sizes are solved, meanwhile, universality and realizability are improved, and product development is promoted.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to medical guide wire processing equipment. Background Technology

[0002] Because the tip of a neurovascular medical guidewire is relatively thin, with a diameter ranging from 0.05 to 0.08 mm and a length ranging from 5 to 30 mm, the following problems exist when flattening the tip of the neurovascular medical guidewire: the elongation rate of different materials is inconsistent, resulting in large width differences for medical guidewires of the same outer diameter after being flattened to the same thickness; the design of the flattening size of the medical guidewire does not conform to the actual flattening elongation of the material; at the same time, due to the small diameter, grinding and rework are not possible; during the assembly process of the medical guidewire, it is common for the spring and the medical guidewire to be unable to be assembled due to the flattening width exceeding the upper limit; even if assembly can be completed, the inconsistent width leads to differences in the mechanical properties of the neurovascular medical guidewire.

[0003] The technical problem to be solved by this application is: how to achieve standardized flattening operation of medical guidewires. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a medical guide wire flattening tool.

[0005] The technical solution adopted by this utility model is as follows: a medical guide wire flattening tool, including a flattening module and a cutting module. The flattening module includes an upper pressing block and a lower pressing block. The upper pressing block is close to the lower pressing block through a flattening driving element. The bottom of the upper pressing block is provided with an upper pressing section, the width of which is the same as the width of the medical guide wire flattening section. The top of the lower pressing block is provided with a lower pressing section with the same width as the upper pressing section. The upper pressing section and the lower pressing section are arranged opposite to each other. The cutting module includes an upper cutter. Two upper cutters are respectively arranged on both sides of the upper pressing section. The upper cutters are raised and lowered through a cutting driving element. The cutting driving element is raised and lowered synchronously with the upper pressing block.

[0006] In some embodiments, an upper base is included, and a mounting block is provided at the bottom of the upper base. The mounting block has a mounting groove that matches the shape of the upper pressure block, and the upper pressure block and the mounting groove are detachably connected.

[0007] In some embodiments, the cutting module includes a lower cutter, with two lower cutters respectively disposed on both sides of the pressing section. The lower cutters are driven to rise and fall by a reset drive element, and the top of the lower cutter is always kept no higher than the top of the pressing section.

[0008] In some embodiments, a lower base is included, a lower pressure block is detachably connected to the lower base, the output end of a reset drive element passes through the lower base to drive the lower cutter to rise and fall, and when the lower cutter abuts against the lower base, there is a height difference between the top end of the lower cutter and the top end of the lower pressure block.

[0009] In some embodiments, a positioning seat is included, which is disposed on one side of the lower base. The positioning seat has a positioning groove, the width of which is the same as the width of the medical guidewire. Inclined connecting surfaces are provided on both sides of the positioning groove. The top of the positioning groove is lower than the upper surface of the positioning seat. The inclined connecting surfaces are inclined from the upper surface of the positioning seat to the groove wall.

[0010] In some embodiments, the upper and lower pressure blocks are respectively provided with flattened inclined surfaces at the end near the positioning seat.

[0011] In some embodiments, the upper base is provided with guide posts at the four corners, and the flattening drive element drives the upper base to move up and down along the guide posts.

[0012] The beneficial effects of this utility model are as follows:

[0013] This medical guidewire flattening tool uses the cooperation of upper and lower cutters in the flattening module to squeeze and cut, flattening into various sizes. This solves the problem of different flattening sizes for different elongation rates, while improving versatility and feasibility, and facilitating product development. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged schematic diagram of structure labeled A;

[0016] Figure 3 This is a schematic diagram of the upper pressure block;

[0017] Figure 4 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0018] Figure 5 for Figure 4 Enlarged schematic diagram of the structure labeled B;

[0019] The labels and names in the diagram correspond as follows: 1. Upper base; 2. Flattening module; 3. Flattening drive element; 4. Cutting drive element; 5. Lower base; 6. Positioning seat; 7. Cutting module; 11. Mounting block; 12. Guide post; 21. Upper pressing block; 22. Lower pressing block; 23. Upper pressing section; 24. Lower pressing section; 61. Positioning groove; 62. Inclined connecting surface; 71. Upper cutter; 72. Lower cutter; 73. Reset drive element. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 This utility model provides a technical solution: a medical guide wire flattening fixture, including an upper base 1, a flattening module 2, a flattening driving element 3, a cutting driving element 4, a lower base 5, a positioning seat 6, and a cutting module 7. The positioning seat 6 is disposed on one side of the lower base 5, and the upper base 1 is disposed above the lower base 5.

[0022] The flattening drive element 3 is a hydraulic press, and its output end is fixedly connected to the upper base 1. The cutting drive element 4 is a pneumatic or electric cylinder with linear motion at its output end, and its fixed end is fixedly connected to the upper base 1. The output stroke of the flattening drive element 3 can be adjusted according to actual conditions.

[0023] Please see Figure 4-5 The positioning seat 6 is provided with a positioning groove 61, the width of which is the same as the width of the medical guidewire. Inclined connecting surfaces 62 are provided on both sides of the positioning groove 61. The top of the positioning groove 61 is lower than the upper surface of the positioning seat 6. The inclined connecting surfaces 62 slope from the upper surface of the positioning seat 6 to the wall of the positioning groove 61, facilitating manual placement of the medical guidewire, allowing it to slide into the positioning groove 61. The connection between the inclined connecting surfaces 62 and the wall of the positioning groove 61 is smoothly rounded.

[0024] Please see Figure 1-3The upper base 1 has a mounting block 11 at its bottom. The flattening module 2 includes an upper pressing block 21 and a lower pressing block 22. The upper pressing block 21 is detachably connected to the mounting block 11. The upper pressing block 21 is narrow in the middle and wide at the top and bottom. The mounting block 11 has a mounting groove that matches the shape of the upper pressing block 21. The upper pressing block 21 is detachably connected to the mounting groove. The upper pressing block 21 can be disassembled and installed from the mounting groove by moving it laterally. The upper pressing block 21 can be replaced according to different actual needs. The bottom of the upper pressing block 21 has an upper pressing section 23. The width of the upper pressing section 23 is the same as the width of the flattened section of the medical guidewire. The lower pressing block 22 is located on the lower base 5 and is detachably connected to the lower base 5. The lower base 5 has a fixing groove that matches the shape of the lower pressing block 22. The lower pressing block 22 is detachably connected to the fixing groove. The top of the lower pressing block 22 has a lower pressing section 24 with the same width as the upper pressing section 23. The upper pressing section 23 and the lower pressing section 24 are arranged opposite to each other. To avoid bending after flattening and to address the issue of stress concentration and material breakage caused by the large transition between the flattened and straight sections of the medical guidewire, the upper pressure block 21 and the lower pressure block 22 are provided with a flattening inclined surface at one end near the positioning seat 6. The flattening inclined surface allows the flattened section of the medical guidewire to transition slowly to the straight section. In addition, the upper pressure block 21 and the lower pressure block 22 are made of tungsten steel, which increases the service life of the flattening module 2.

[0025] Please see Figure 1 and Figure 2 The cutting module 7 includes an upper cutter 71 and a lower cutter 72. The two upper cutters 71 are respectively positioned on both sides of the upper pressure section 23 and are tightly attached to it. Two cutting drive elements 4 are provided, with their output ends passing through the mounting block 11 and fixedly connected to the corresponding upper cutter 71. The cutting drive elements 4 drive the upper cutter 71 to rise and fall. Two lower cutters 72 are respectively positioned on both sides of the lower pressure section 24. A reset drive element 73 is located below the lower base 5. The reset drive element 73 is an electric or pneumatic cylinder with a linear output. Two reset drive elements 73 are provided, with their output ends fixedly connected to the corresponding lower cutter 72. The output ends of the reset drive elements 73 pass through the lower base 5 and drive the lower cutter 72 to rise and fall. The lower cutter 72 is always kept no higher than the lower pressure section 24. During the descent of the lower cutter 72, it abuts against the lower base 5 to prevent excessive descent. When the lower cutter 72 abuts against the lower base 5, there is a height difference between the top of the lower cutter 72 and the top of the lower pressure block 22. The top of the lower pressure block 22 is higher than the top of the lower cutter 72, thus creating a cutting space for the upper cutter 71 to cut the flattened section of the medical guide wire.

[0026] In order for the upper pressure block 21 to press down on the lower pressure block 22 accurately, in this embodiment, preferably, the upper base 1 is provided with guide posts 12 at the four corners, the guide posts 12 are fixedly connected to the lower base 5, and the flattening drive element 3 drives the upper base 1 to move up and down along the guide posts 12.

[0027] The working principle and usage process of this utility model are as follows: The medical guide wire to be flattened is placed in the positioning groove 61, with part of the medical guide wire on the lower pressing section 24. Driven by the flattening driving element 3 and limited by the guide post 12, the upper base 1 is pushed downward as a whole. The upper pressing section 23 and the lower pressing section 24 cooperate to flatten the medical guide wire. The flattening driving element 3 drives the upper base 1 to press down to the set stroke. The cutting driving element 4 pushes the upper cutter 71 downward. Under strong pressure, the excess part of the flattened section of the medical guide wire is squeezed and removed. The lower cutter 72 mainly plays a supporting role. After the removal is completed, the lower cutter 72 is reset under the push of the reset driving element 73. After the medical guide wire is flattened, it is removed. The external air gun blows away the remaining material, completing the flattening action.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A medical guide wire flattening tool characterized by comprising: The utility model relates to a medical guide wire crushing and cutting device, including crushing module (2) and cutting module (7), crushing module (2) includes upper press block (21) and lower press block (22), upper press block (21) is close to lower press block (22) through crushing drive element (3), the bottom of upper press block (21) is equipped with upper press section (23), and the width of upper press section (23) is consistent with the width of medical guide wire crushing section, and the top of lower press block (22) is equipped with lower press section (24) with the width of upper press section (23), and upper press section (23) and lower press section (24) are oppositely arranged, cutting module (7) includes upper cutter (71), two upper cutter (71) are arranged at the both sides of upper press section (23) respectively, and upper cutter (71) is lifted through cutting drive element (4), and cutting drive element (4) is synchronous with upper press block (21) and lifts.

2. The medical guide wire flattening tool according to claim 1, wherein Including upper base (1), the bottom of upper base (1) is equipped with mounting block (11), and the mounting block (11) is equipped with the mounting groove with the shape cooperation of upper press block (21), and upper press block (21) is detachably connected with the mounting groove.

3. The medical guide wire flattening tool according to claim 1, wherein The cutting module (7) includes a lower cutter (72), two lower cutters (72) are arranged on both sides of the lower press section (24), respectively, the lower cutter (72) is driven to lift by the reset drive element (73), and the top end of the lower cutter (72) is always kept not higher than the top end of the lower press section (24).

4. The medical guide wire flattening tool according to claim 3, wherein Including lower base (5), the lower press block (22) is detachably connected with the lower base (5), the output end of the reset drive element (73) drives the lower cutter (72) to lift through the lower base (5), and when the lower cutter (72) abuts against the lower base (5), there is a height difference between the top end of the lower cutter (72) and the top end of the lower press block (22).

5. The medical guide wire flattening tool according to claim 1, wherein Including a positioning seat (6), the positioning seat (6) is arranged on one side of the lower base (5), the positioning seat (6) is provided with a positioning groove (61), the groove width of the positioning groove (61) is consistent with the width of the medical guide wire, the positioning groove (61) is provided with inclined connecting surfaces (62) on both sides respectively, the groove top of the positioning groove (61) is lower than the upper surface of the positioning seat (6), and the inclined connecting surfaces (62) are inclined from the upper surface of the positioning seat (6) to the groove wall of the positioning groove (61).

6. The medical guide wire flattening tool according to claim 5, wherein The upper press block (21) and the lower press block (22) are respectively provided with crushing inclined surfaces at one end close to the positioning seat (6).

7. The medical guide wire flattening tool according to claim 2, wherein The upper base (1) is provided with guide columns (12) at four corners, and the crushing drive element (3) drives the upper base (1) to limit lifting along the guide columns (12).

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