A guide wire holding device

Abstract

This invention provides a guidewire clamping device, aiming to solve the problems of the clamping range being limited by the metal nozzle and the risk of guidewire clamping damage in existing guidewire clamping devices. This invention mainly includes a handle and a cap. One end of the handle, inserted into the cap, integrates a bite-shaped cavity for clamping the guidewire. Because the handle of this guidewire clamping device integrates a bite-shaped cavity with existing functions, compared to the metal nozzle of existing standard parts, its internal bite-clamping range is fixed, thus limiting its ability to clamp the guidewire. The bite-shaped cavity integrated in the guidewire clamping device provided by this invention consists of four bite-shaped flaps, resulting in a simpler structure, reducing the assembly difficulty of existing products. Furthermore, the handle is made entirely of nylon PA material, preventing damage to the guidewire body.

Description

Technical Field

[0001] This utility model relates to the field of guide wire clamping technology, and in particular to a guide wire clamping device. Background Technology

[0002] Medical guidewire clamping devices are primarily used to hold and secure guidewires, which are long, thin, and flexible medical instruments commonly used in surgical procedures to guide catheters, stents, or other medical devices into blood vessels or cavities. Guidewire clamping devices are widely used in clinical extracorporeal interventional procedures, facilitating manual manipulation by the surgeon.

[0003] Existing guidewire clamping devices typically consist of three parts: a handle, a cap, and a metal constrictor. The final clamping contact surface of the guidewire is a separate metal constrictor mounted in the device. However, this three-part assembly structure is relatively complex and has the following drawbacks:

[0004] 1. Limited clamping range: Since the metal nozzle is a standard part, its internal clamping range is fixed;

[0005] 2. Risk of guidewire damage: The metal tip may damage the surface of the guidewire, affecting its performance.

[0006] 3. Complex assembly: The three-component assembly structure increases the difficulty of production and maintenance. Utility Model Content

[0007] This application addresses the shortcomings of the prior art by providing a guidewire clamping device that solves the problems of limited clamping range, high risk of guidewire damage, and complex assembly in the prior art by integrating a biting cavity and optimizing structural design.

[0008] The technical solution adopted in this utility model is as follows:

[0009] A guide wire clamping device includes a handle and a cap arranged sequentially along the axial direction. One end of the handle, which is inserted into the cap, is also integrated with an engagement cavity for clamping the guide wire. The cap has a variable diameter design inside. The end of the cap is formed with an inlet for the guide wire. The inner wall of the cap adjacent to the inlet is formed with a tapered section. The engagement cavity can contract and engage the guide wire under the pressure of the tapered section.

[0010] Furthermore, the tail of the handle is a gripping part, and an annular limiting disc is formed in the middle section of the handle adjacent to the gripping part. A threaded section is formed in the axial front part of the limiting disc, and an engagement base is formed in the axial front part of the threaded section. Four engagement petals are formed in the front part of the engagement base along the circumference.

[0011] Furthermore, the occlusal flap is tapered from front to back.

[0012] Furthermore, both the handle and the engagement cavity formed at the front of the handle are integrally molded from nylon material.

[0013] Furthermore, the interior of the cap consists of a threaded section, a variable diameter section, and a tapered section, arranged sequentially from back to front.

[0014] The beneficial effects of this utility model are as follows:

[0015] Compared with the prior art, the present invention provides a guide wire clamping device. The front part of the handle of the guide wire clamping device integrates a biting cavity with the functions of the prior art. However, since the metal nozzle of the prior art is a standard part, its internal biting clamping range is fixed, so its clamping of the guide wire is limited. In contrast, the biting cavity integrated in the guide wire clamping device provided by the present invention is composed of four biting petals, which is simpler in structure and reduces the assembly difficulty of the existing products. Moreover, the handle is made of nylon PA material, which will not damage the guide wire body. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the handle structure in this utility model;

[0018] Figure 3 This is a diagram showing the internal structure of the cap in this utility model;

[0019] Figure 4 This is a schematic diagram of the occlusal flap surface in this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the handle and cap in this utility model.

[0021] The components are: 1. Handle; 11. Grip part; 12. Annular limiting disc; 13. Engaging base; 14. Engaging flap; 2. Cap; 21. Wire inlet; 22. Tapered section; 23. Variable diameter section. Detailed Implementation

[0022] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0023] This invention provides a guide wire clamping device, which aims to solve the problem that the clamping range of existing guide wire clamping devices is limited by the metal nozzle and there is a risk of guide wire clamping damage.

[0024] like Figures 1 to 5As shown, it includes a handle 1 and a cap 2 arranged sequentially along the axial direction. The end of the handle 1 inserted into the cap 2 also integrates an engagement cavity for clamping the guide wire. The interior of the cap 2 has a variable diameter design. The end of the cap 2 is formed with a wire inlet 21 for the guide wire. The inner wall of the cap 2 adjacent to the wire inlet 21 is formed with a tapered section 22. The engagement cavity can contract and engage the guide wire under the pressure of the tapered section 22.

[0025] In one embodiment of this utility model, the tail of the handle 1 is a gripping part 11. An annular limiting disk 12 is formed in the middle section of the handle 1 adjacent to the gripping part 11. A threaded section is formed in the axial front part of the limiting disk. A biting base 13 is formed in the axial front part of the threaded section. Four biting petals 14 distributed along the circumference are formed in the front part of the biting base 13.

[0026] In one embodiment of this utility model, the occlusal flap 14 is tapered from the front to the rear.

[0027] In one embodiment of this utility model, the handle 1 and the engagement cavity formed at the front of the handle 1 are both integrally formed of nylon material.

[0028] In one embodiment of this utility model, the inside of the cap 2 consists of a threaded section, a variable diameter section 23, and a tapered section 22, arranged sequentially from back to front.

[0029] The specific implementation structure and working principle of this utility model are as follows:

[0030] Handle 1:

[0031] The handle 1 is made of nylon material in one piece to ensure the strength and durability of the overall structure. At the same time, the nylon engagement cavity is more resilient than the metal nozzle of the existing technology and will not pinch the surface of the guide wire.

[0032] The tail of the handle 1 is the grip part 11, which makes it easy for doctors to hold and operate.

[0033] The middle section of the handle 1 is provided with an annular limiting disc 12, which is used to limit the range of movement of the cap 2.

[0034] The bite base 13 at the front of the handle 1 is provided with four bite flaps 14. The bite flaps 14 are tapered, which makes it easy to contract and bite the guide wire under the pressure of the tapered section 22 of the cap 2.

[0035] Block 2:

[0036] The cap 2 has a threaded section, a variable diameter section 23 and a tapered section 22 inside.

[0037] The threaded section mates with the threaded section of the handle 1 to ensure a secure connection between the cap 2 and the handle 1. The reducing section 23 and the tapered section 22 are used to compress the engagement face 14, causing it to contract and engage the guide wire.

[0038] The end of the cap 2 is provided with a wire inlet 21 to facilitate the passage of the wire guide.

[0039] Occlusal cavity:

[0040] The occlusal cavity consists of four occlusal flaps 14, which contract and occlude the guidewire under the pressure of the tapered section 22 of the cap 2.

[0041] The tapered design of the bite cavity makes it flexible in its clamping range and suitable for guidewires of different diameters.

[0042] Work process:

[0043] The guidewire is inserted into the engagement cavity through the inlet 21 of the cap 2, and the insertion depth into the engagement cavity can be manually adjusted to adjust the range.

[0044] Rotate the cap 2 so that its conical section 22 presses against the occlusal valve surface 14, causing the occlusal valve surface 14 to contract and occlude the guidewire.

[0045] The guidewire is operated by the gripping part 11 of the handle 1 to complete the surgery.

[0046] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A guide wire clamping device, characterized in that: It includes a handle (1) and a cap (2) arranged sequentially along the axial direction. The end of the handle (1) inserted into the cap (2) is also integrated with a clamping cavity for holding the guide wire. The inside of the cap (2) is designed with a variable diameter. The end of the cap (2) is formed with a wire inlet (21) for the guide wire. The inner wall of the cap (2) adjacent to the wire inlet (21) is formed with a tapered section (22). The clamping cavity can contract and clamp the guide wire under the pressure of the tapered section (22).

2. The guide wire clamping device as described in claim 1, characterized in that: The tail of the handle (1) is a gripping part (11). A ring-shaped limiting disc (12) is formed in the middle section of the handle (1) adjacent to the gripping part (11). A threaded section is formed in the axial front part of the limiting disc. A biting base (13) is formed in the axial front part of the threaded section. Four biting petals (14) are formed in the front part of the biting base (13) along the circumference.

3. The guide wire clamping device as described in claim 2, characterized in that: The occlusal flap (14) is tapered from the front to the back.

4. The guide wire clamping device as described in claim 1, characterized in that: The handle (1) and the engagement cavity formed at the front of the handle (1) are both integrally formed of nylon material.

5. The guide wire clamping device as described in claim 1, characterized in that: The inside of the cap (2) consists of a threaded section, a variable diameter section (23), and a tapered section (22) from back to front.

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