Guide wire test handle
By designing a guidewire test handle and using clamping components and pressure sensors to measure the resistance of the guidewire in a human body model, the problem of inaccurate guidewire performance evaluation was solved, enabling intuitive and accurate testing of guidewire performance and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-07
AI Technical Summary
The lack of quantifiable indicators in existing technologies makes it difficult to accurately determine the flexibility or pushing ability of guidewires, resulting in inaccurate evaluation of guidewire performance.
A guide wire test handle was designed, comprising a housing, a slide, a pressure seat, a clamping assembly, and a pressure sensor. The guide wire is clamped by the clamping assembly, and the resistance is measured by the pressure sensor during the pushing process, providing an intuitive performance evaluation.
This enables a direct and accurate evaluation of guidewire performance, improving guidewire production efficiency and testing accuracy.
Smart Images
Figure CN224095540U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of medical instruments, in particular to a guide wire test handle. BACKGROUND
[0002] When the softness of the guide wire is tested or the pushing ability of the guide wire is tested, the guide wire is usually inserted into a human model, and the softness or the pushing ability of the guide wire is judged according to the subjective feeling of the user when the guide wire is controlled. At this time, it is difficult to accurately judge the use performance of the guide wire due to the lack of quantifiable data indicators. Therefore, there is an urgent need for a device suitable for testing the guide wire to improve the accuracy of the evaluation of the use performance of the guide wire. SUMMARY
[0003] The utility model aims to provide a guide wire test handle to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.
[0004] The utility model solves the technical problem by the following solution:
[0005] The guide wire test handle comprises a housing, a sliding seat and a pressing seat movably connected inside the housing, the sliding seat and the pressing seat can move forward and backward in the housing respectively, an elastic member is arranged between the sliding seat and the pressing seat, and a pressure sensor is arranged at a position behind the pressing seat in the housing; a clamping assembly is connected to one side of the sliding seat away from the pressing seat, and the clamping assembly has an openable and closable clamping area.
[0006] The technical solution has at least the following beneficial effects: when the pushing ability test or the softness test of the guide wire is needed, the clamping area in the clamping assembly is opened, then the guide wire is inserted into the clamping area, and then the clamping assembly is closed to clamp the guide wire. At this time, the guide wire is fixed integrally with the clamping assembly, the guide wire is inserted into the human model of the external device for performance test, when the guide wire is subjected to resistance during pushing, the resistance can be transmitted to the clamping assembly through the guide wire, the sliding seat is driven to slide backward, the elastic member between the sliding seat and the pressing seat is elastically compressed, and the pressure sensor can test the external force received by the guide wire in this process, so that the size of the resistance received by the guide wire when passing through the human model can be directly obtained. When the guide wire is no longer subjected to resistance in the human model, the elastic member elastically recovers to push the sliding seat to reset forward. When the guide wire is tested using the guide wire test handle, the size of the resistance received by the guide wire is obtained. At this time, the size of the resistance received by the guide wire is used as the basis for judging the performance of the guide wire, the use performance of the guide wire can be directly and accurately evaluated and judged, and the production efficiency of the guide wire can be improved.
[0007] As a further improvement of the above technical solution, the clamping assembly comprises a clamping sleeve, a clamping head and a clamping cap, the clamping sleeve is connected to the front side of the sliding seat, the clamping head is connected to the front end of the clamping sleeve, the front end of the clamping head is formed with clamping blocks, a plurality of clamping blocks are arranged around the center of the clamping head, the clamping area is formed between the plurality of clamping blocks, the clamping cap is threadedly connected to the outer side of the clamping sleeve, the plurality of clamping blocks are located in the clamping cap respectively, the inner side of the clamping cap has a pressing section abutting against the plurality of clamping blocks, the inner diameter of the pressing section gradually decreases from front to back, and the clamping cap is provided with a through hole at a position opposite to the clamping area. When the clamping area is in an open state, the pressing section on the inner side of the clamping cap is away from the clamping head, at this time the plurality of clamping blocks are away from each other, the guide wire can pass through the through hole on the clamping cap and easily enter and exit the clamping area, when the guide wire needs to be clamped, the clamping cap is rotated to move backward on the clamping sleeve, at this time the pressing section on the inner side of the clamping cap abuts against the plurality of clamping blocks, due to the gradually decreasing inner diameter of the pressing section from front to back, the plurality of clamping blocks can be gradually elastically offset in the direction of approaching the clamping area as the clamping cap moves backward, so that the clamping area is reduced, and due to the spacing between the adjacent two clamping blocks, the elastic deformation space is provided for the elastic offset of the clamping blocks, so that the guide wire is stably clamped. Thus, the guide wire can be relaxed and clamped, and the utility is strong.
[0008] As a further improvement of the above technical solution, the front side of the clamping block is provided with a guide inclined surface, and the guide inclined surface is inclined backward along the direction of approaching the clamping area. When the guide wire passes through the through hole and is inserted into the clamping area, the guide wire may abut against the front side of the clamping block, at this time the inclined guide inclined surface can guide the insertion of the guide wire, so that the guide wire is inserted into the clamping area along the guide inclined surface, thus the convenience of clamping and positioning the guide wire can be improved.
[0009] As a further improvement of the above technical solution, the outer side of the clamping cap is provided with a first anti-skid pattern. When the clamping cap needs to be rotated to relax or clamp the guide wire, force can be applied to the outer side of the clamping cap, and due to the first anti-skid pattern on the outer side of the clamping cap, the friction of the outer side of the clamping cap is increased, at this time the convenience of rotating the clamping cap can be improved, and the phenomenon of slipping when force is applied to the outer side of the clamping cap can be reduced.
[0010] As a further improvement of the above technical solution, the front end of the sliding seat protrudes forward from the shell, and the rear end of the clamping sleeve is detachably connected to the front end of the sliding seat. When different guide wires need to be adapted, the entire clamping assembly can be replaced, at this time the clamping sleeve is disassembled from the sliding seat, and due to the fact that the front end of the sliding seat protrudes forward from the shell, when the clamping sleeve and the sliding seat need to be disassembled, it is more convenient to directly apply force to the sliding seat, and the disassembly is more convenient and intuitive.
[0011] As a further improvement of the above technical solution, the shell is internally provided with a sliding bushing, and the sliding seat is connected to the sliding bushing. The sliding bushing can improve the stability of the sliding seat in the shell, reduce the friction between the sliding seat and the shell, and more accurately transmit the resistance from the sliding seat to the pressing seat, thereby improving the accuracy of the guide wire test.
[0012] As a further improvement of the above technical solution, the elastic member is a spring, the rear end of the sliding seat is formed with a rear limiting shaft, the front end of the pressing seat is formed with a front limiting shaft, and the two ends of the spring are respectively sleeved outside the rear limiting shaft and the front limiting shaft. The front end of the spring is sleeved in the rear limiting shaft of the rear end of the sliding seat to position the front end of the spring, and the rear end of the spring is sleeved in the front limiting shaft of the front end of the pressing seat to position the rear end of the spring. In this way, the spring provides elastic force, and the positioning and installation of the spring are convenient.
[0013] As a further improvement of the above technical solution, the rear side of the shell is provided with a wireless signal transmission module, and the pressure sensor is electrically connected to the wireless signal transmission module. The data obtained by the pressure sensor can be transmitted to the wireless signal transmission module and then transmitted to the display device of the external device, thereby facilitating observation and recording and improving the use flexibility.
[0014] As a further improvement of the above technical solution, the rear side of the shell is provided with a wire clamping sleeve, the wire clamping sleeve is internally provided with an electric wire, and the electric wire is connected to the pressure sensor. The wire clamping sleeve is used to provide a sealing connection when the electric wire is connected to the shell. The electric wire can be connected to the display device of the external device for data transmission, thereby facilitating observation and recording and improving the use flexibility.
[0015] As a further improvement of the above technical solution, a second anti-skid pattern is arranged on the outer side of the shell. The second anti-skid pattern increases the friction on the outer side of the shell, so that the user is not easy to slip when exerting force on the outer side of the shell, thereby improving the stability of holding the shell. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly described below. Obviously, the described drawings are only some embodiments of the present application, not all embodiments, and those skilled in the art can obtain other design schemes and drawings according to these drawings without creative labor.
[0017] Figure 1 is the overall perspective view of the present application.
[0018] Figure 2 is a schematic view of the internal structure of the present application.
[0019] Figure 3 is a perspective view of the clamp sleeve and the chuck assembled according to the utility model.
[0020] In the drawings: 100 - shell, 110 - slide base, 120 - pressing seat, 130 - pressure sensor, 140 - elastic member, 150 - sliding bushing, 160 - wire clamping sleeve, 170 - electric wire, 210 - clamp sleeve, 220 - chuck, 221 - clamping block, 222 - guide inclined surface, 230 - clamping cap, 240 - clamping area. DETAILED DESCRIPTION
[0021] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.
[0022] In the description of the utility model, it is understood that the orientation description, such as up, down, front, back, left, right and the like, is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as limiting the utility model.
[0023] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than and the like are not included in the number, above, below, within and the like are included in the number. If the first, the second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0024] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0025] Referring to Figure 1 and Figure 2, the guide wire test handle includes a housing 100 and a clamping assembly, wherein the inside of the housing 100 is movably connected with a sliding seat 110 and a pressing seat 120, the sliding seat 110 and the pressing seat 120 can be moved forward and backward in the housing 100 respectively, an elastic piece 140 is arranged between the sliding seat 110 and the pressing seat 120, and a pressure sensor 130 is arranged at the position of the housing 100 at the rear side of the pressing seat 120; the clamping assembly is connected to the side of the sliding seat 110 away from the pressing seat 120, and the clamping assembly has an openable and closable clamping area 240.
[0026] As can be seen from the above, when the pushability test or softness test of the guide wire is needed, the clamping area 240 in the clamping assembly is opened, then the guide wire is inserted into the clamping area 240, then the clamping assembly is closed to clamp the guide wire, at this time the guide wire is fixed integrally with the clamping assembly, the guide wire is inserted into the external human body model for performance test, when the guide wire is subjected to resistance in the pushing process, the resistance can be transmitted to the clamping assembly through the guide wire, the sliding seat 110 is driven to slide backward, the elastic piece 140 between the sliding seat 110 and the pressing seat 120 is elastically compressed, in this process, the pressure sensor 130 can test the external force received by the guide wire, so that the size of the resistance received by the guide wire when passing through the human body model is directly obtained, when the guide wire is no longer subjected to resistance in the human body model, the elastic piece 140 elastically recovers to push the sliding seat 110 to reset forward, so that the resistance received by the guide wire is obtained when the guide wire is tested by using the guide wire test handle, at this time the size of the resistance received by the guide wire is used as the basis for judging the performance of the guide wire, the use performance of the guide wire can be directly and accurately evaluated and judged, and the production efficiency of the guide wire is improved.
[0027] The clamping assembly is mainly used for clamping and positioning the guide wire, and has various structural forms, for example, the clamping assembly can adopt a spring clamp, and in the embodiment, as shown in the figure, Figure 3As shown, the clamping assembly comprises a clamping sleeve 210 connected to the front side of the sliding seat 110, a clamping head 220 connected to the front end of the clamping sleeve 210, and a clamping cap 230 threadedly connected to the outside of the clamping sleeve 210. The front end of the clamping head 220 is formed with a plurality of clamping blocks 221 spaced around the center of the clamping head 220, and the clamping blocks 221 form a clamping area 240 therebetween. The number of clamping blocks 221 can be three or four. The clamping blocks 221 and the clamping head 220 are integrally formed during production. The clamping cap 230 is provided with a plurality of clamping blocks 221 therein, and the inside of the clamping cap 230 is provided with a pressing section abutting against the clamping blocks 221. The inner diameter of the pressing section gradually decreases from front to back. The clamping cap 230 is provided with a through hole at a position opposite to the clamping area 240. When the clamping area 240 is in an open state, the pressing section inside the clamping cap 230 is away from the clamping head 220, and the clamping blocks 221 are away from each other at this time. The guide wire can pass through the through hole of the clamping cap 230 and easily enter and exit the clamping area 240. When the guide wire needs to be clamped, the clamping cap 230 is rotated to move backward on the clamping sleeve 210. At this time, the pressing section inside the clamping cap 230 abuts against the clamping blocks 221. Due to the gradually decreasing inner diameter of the pressing section from front to back, the clamping blocks 221 are gradually elastically offset in the direction of approaching the clamping area 240 as the clamping cap 230 moves backward, so that the clamping area 240 is reduced. Since there is a spacing between the adjacent two clamping blocks 221, the elastic deformation space is provided for the elastic offset of the clamping blocks 221, so that the guide wire is stably clamped. Thus, the relaxation and clamping of the guide wire can be realized, and the practicability is high.
[0028] After the guide wire is inserted into the through hole, the guide wire may deviate from the clamping area 240 when moving to the clamping area 240. In order to conveniently align the guide wire in the clamping area 240, the front side of the clamping block 221 is provided with a guide inclined surface 222 inclined backward in the direction of approaching the clamping area 240. The guide inclined surfaces 222 of the plurality of clamping blocks 221 together form a groove for guiding the guide wire. When the guide wire is inserted into the clamping area 240 through the through hole, the guide wire abuts against the front side of the clamping block 221. At this time, the guide inclined surface 222 inclinedly arranged can guide the insertion of the guide wire, so that the guide wire is inserted into the clamping area 240 along the guide inclined surface 222. Thus, the convenience of clamping and positioning the guide wire can be improved.
[0029] When the outer side of the clamping cap 230 is smooth, it is easy to slip when directly applying force to the outer side of the clamping cap 230 to rotate. Therefore, in the embodiment, the outer side of the clamping cap 230 is provided with a first anti-skid pattern. For example, the first anti-skid pattern extends in the front-rear direction on the outer side of the clamping cap 230, and a plurality of first anti-skid patterns are arranged along the circumference of the outer side of the clamping cap 230. When it is necessary to rotate the clamping cap 230 to loosen or clamp the guide wire, force can be applied to the outer side of the clamping cap 230. Because the outer side of the clamping cap 230 is provided with the first anti-skid pattern, the friction of the outer side of the clamping cap 230 is increased. In this way, the convenience of rotating the clamping cap 230 is improved, and the phenomenon of slipping when applying force to the outer side of the clamping cap 230 is reduced.
[0030] The clamping sleeve 210 can be integrally fixed in the sliding seat 110. When different guide wires are fixed or different objects are tested, the clamping sleeve 210 can be disassembled. Specifically, the front end of the sliding seat 110 protrudes forward from the shell 100, and the rear end of the clamping sleeve 210 is detachably connected to the front end of the sliding seat 110. For example, the clamping sleeve 210 can be connected to the front end of the sliding seat 110 by screw connection, or connected to the front end of the sliding seat 110 by buckle connection. When different guide wires need to be adapted, the entire clamping assembly can be replaced. In this case, the clamping sleeve 210 is disassembled from the sliding seat 110. Because the front end of the sliding seat 110 protrudes forward from the shell 100, it is more convenient to disassemble the clamping sleeve 210 and the sliding seat 110. Force can be directly applied to the sliding seat 110, and disassembly is more convenient and intuitive.
[0031] In the above embodiment, two cavities independent of each other can be arranged in the shell 100, and the two cavities accommodate the sliding seat 110 and the pressing seat 120, respectively, and provide space for the sliding and pressing seat 120 to move in the front-rear direction. In order to improve the smoothness of the sliding seat 110, a sliding bushing 150 is arranged in the shell 100 in the embodiment, and the sliding seat 110 is connected to the sliding bushing 150. The sliding bushing 150 can improve the stability of the sliding seat 110 sliding in the shell 100, reduce the friction between the sliding seat 110 and the shell 100, and more accurately transmit the resistance from the sliding seat 110 to the pressing seat 120, thereby improving the accuracy of the guide wire test.
[0032] The elastic member 140 is mainly used to provide elastic buffering in the front-rear direction and a movable avoiding space. The elastic member 140 can adopt an elastic structure such as rubber or elastic sheet. In the embodiment, the elastic member 140 is a spring. The rear end of the sliding seat 110 is formed with a rear limiting shaft, the front end of the pressing seat 120 is formed with a front limiting shaft, and the two ends of the spring are respectively sleeved outside the rear limiting shaft and the front limiting shaft. The front end of the spring abuts against the rear side of the sliding seat 110 and the front side of the pressing seat 120 respectively, the front end of the spring is sleeved in the rear limiting shaft at the rear end of the sliding seat 110 to position the front end of the spring, and the rear end of the spring is sleeved in the front limiting shaft at the front end of the pressing seat 120 to position the rear end of the spring. In this way, the spring provides elastic force and improves the convenience of positioning and installing the spring.
[0033] A digital display screen can be directly provided on the shell 100 to output the resistance value obtained by the pressure sensor 130. In order to further improve the convenience of observing the data of the pressure sensor 130, a wireless signal transmission module is arranged at the rear side of the shell 100 in the first embodiment. The pressure sensor 130 is electrically connected to the wireless signal transmission module. For example, the wireless signal transmission module is a Bluetooth communication module or a WI-FI communication module. The data obtained by the pressure sensor 130 can be transmitted to the wireless signal transmission module and then transmitted to a display device of an external device through the wireless signal transmission module, so as to facilitate observation and recording and improve the use flexibility.
[0034] In the second embodiment, the data of the pressure sensor 130 can be transmitted through a wired data transmission mode. Specifically, a wire sleeve 160 is arranged at the rear side of the shell 100. An electric wire 170 is arranged in the wire sleeve 160 and connected to the pressure sensor 130. The wire sleeve 160 is used to provide a sealing connection when the electric wire 170 is connected to the shell 100. The electric wire 170 can be connected to a display device of an external device to transmit data, so as to facilitate observation and recording and improve the use flexibility.
[0035] In some embodiments, a second anti-skid pattern is arranged outside the shell 100. For example, the second anti-skid pattern extends along the circumferential direction of the shell 100, and a plurality of second anti-skid patterns are arranged outside the shell 100 in the front-rear direction. The second anti-skid pattern increases the friction force outside the shell 100, so that the user is not easy to slip when exerting force on the outside of the shell 100, thereby improving the stability of holding the shell 100.
[0036] The preferred embodiments of the present application are specifically described above, but the present application is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application. The equivalent modifications or replacements are all included in the scope defined by the claims of the present application.
Claims
1. A guidewire testing handle, characterized in that: include: The outer casing (100) has a slide (110) and a pressure seat (120) movably connected inside. The slide (110) and the pressure seat (120) can move back and forth inside the outer casing (100). An elastic element (140) is provided between the slide (110) and the pressure seat (120). A pressure sensor (130) is provided inside the outer casing (100) at a position behind the pressure seat (120). A clamping assembly is connected to the side of the slide (110) away from the pressure seat (120), the clamping assembly having an openable clamping area (240).
2. The guidewire testing handle according to claim 1, characterized in that: The clamping assembly includes a sleeve (210), a chuck (220), and a nut (230). The sleeve (210) is connected to the front side of the slide (110). The chuck (220) is connected to the front end of the sleeve (210). A clamping block (221) is formed at the front end of the chuck (220). Multiple clamping blocks (221) are spaced around the center of the chuck (220). The clamping area (240) is formed between the multiple clamping blocks (221). The nut (230) is threaded to the outside of the sleeve (210). The multiple clamping blocks (221) are respectively located inside the nut (230). The inner side of the nut (230) has a pressing section that abuts against the multiple clamping blocks (221). The inner radial direction of the pressing section gradually decreases forward. The nut (230) has a through hole at the position directly opposite the clamping area (240).
3. The guidewire testing handle according to claim 2, characterized in that: The clamping block (221) has a guide slope (222) on its front side, and the guide slope (222) is inclined backward in the direction close to the clamping area (240).
4. The guidewire testing handle according to claim 2, characterized in that: The outer side of the clip cap (230) is provided with a first anti-slip texture.
5. The guidewire testing handle according to claim 2, characterized in that: The front end of the slide (110) protrudes forward from the outer shell (100), and the rear end of the sleeve (210) is detachably connected to the front end of the slide (110).
6. The guidewire testing handle according to claim 1, characterized in that: A sliding bushing (150) is provided inside the outer casing (100), and the slide (110) is connected inside the sliding bushing (150).
7. The guidewire testing handle according to claim 1, characterized in that: The elastic element (140) is a spring, the rear end of the slide (110) is formed with a rear limiting shaft, the front end of the pressure seat (120) is formed with a front limiting shaft, and the two ends of the spring are respectively sleeved on the outside of the rear limiting shaft and the outside of the front limiting shaft.
8. The guidewire testing handle according to claim 1, characterized in that: A wireless signal transmission module is provided on the rear side of the housing (100), and the pressure sensor (130) is electrically connected to the wireless signal transmission module.
9. The guidewire testing handle according to claim 1, characterized in that: A wire clamp (160) is provided on the rear side of the housing (100), and an electric wire (170) is threaded through the wire clamp (160) and connected to the pressure sensor (130).
10. The guidewire testing handle according to claim 1, characterized in that: The outer side of the outer shell (100) is provided with a second anti-slip texture.