Special drumstick-shaped head end interventional guide wire for passing through coronary stent

Abstract

The utility model discloses a drumstick-like head end interventional guide wire special for passing through a coronary stent, which can well prevent the guide wire from penetrating through stent meshes, reduce operation difficulty and reduce operation risks, and is named as the drumstick-like head end interventional guide wire special for passing through the coronary stent. According to the interventional guide wire special for passing through the drumstick-shaped head end of the coronary stent, good guidance quality and supporting force can be provided through the pushing rod and the shaping section, meanwhile, the outer portion of the pushing rod and the outer portion of the shaping section are coated with PTFE hydrophobic coatings, and friction and damage to the blood vessel wall can be effectively reduced; the guide head is a drumstick-shaped head with the diameter of 2 mm and has better trafficability, the diameter of the head end is larger than that of a common stent mesh, a guide wire can be well prevented from penetrating through the stent mesh, and the guide head has good flexibility and fatigue resistance due to the preparation of a polymer material.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an interventional guidewire with a drumstick-shaped head end specially used for passing through a coronary stent. Background Art

[0002] During the coronary stent implantation process, the use of guide wire is crucial. Although traditional guide wire has certain flexibility and guidance, it is very easy to pass through the stent mesh and run outside the stent when passing through the implanted stent site, especially when the stent is poorly adhered to the wall, increasing the risk of surgery. Utility Model Content

[0003] In order to achieve the above-mentioned purpose, the embodiment of the present invention provides a drumstick-shaped tip interventional guidewire specially used for passing through a coronary stent, comprising

[0004] A structural component, wherein the structural component is fixedly arranged at the front end of the interventional guidewire body;

[0005] A protective component, the protective component is fixedly arranged on the outer side of the front end of the structural component and the interventional guide wire body;

[0006] A guide component is fixedly arranged at the front end of the protective component, wherein:

[0007] The structural component can provide fixed and curved support to the interventional guide wire body, the protective component can reduce friction and damage to the blood vessel wall, and the coronary stent can pass through the guiding component.

[0008] Furthermore, the guiding component includes:

[0009] The guide head is fixedly arranged on the top of the protective component and is made of a polymer material with high elasticity.

[0010] Furthermore, the guide head is set as a 2mm drumstick-like head.

[0011] Furthermore, the diameter of the head end of the guide head is larger than the common stent mesh.

[0012] Furthermore, the structural components include:

[0013] A push rod, the push rod being fixedly arranged at the front end of the interventional guide wire body;

[0014] A shaping section is fixedly arranged at the front end of the pushing rod.

[0015] Furthermore, the pushing rod and the shaping section are made of nickel-titanium alloy.

[0016] Furthermore, the protective component includes:

[0017] A spring coil, the spring coil being fixedly arranged on the outside of the front end of the shaping section and being made of an X-ray-opaque material;

[0018] A protective layer is formed by coating the spring coil, the push rod and the outer side of the shaping section with a PTFE hydrophobic coating.

[0019] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0020] This is a drumstick-shaped head interventional guidewire specially used for passing through a coronary stent. During the doctor's use, the push rod and the shaping segment can provide good guidance and support. At the same time, the push rod and the shaping segment are coated with a PTFE hydrophobic coating, which can effectively reduce friction and damage to the blood vessel wall. At the same time, the spring coil can increase the softness, making the shaping segment easy to shape. At the same time, the material that is not transparent to X-rays can effectively enhance the visibility of the guidewire and improve the safety of the operation. The guide head is a 2mm drumstick-shaped head setting with better passability, and the head end diameter is larger than the common stent mesh, which can effectively prevent the guidewire from passing through the stent mesh, reducing the difficulty of the operation while reducing the risk of the operation. At the same time, the preparation of the polymer material makes the guide head have good flexibility and fatigue resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 Shows an axonometric view of the present invention;

[0023] Figure 2 Shows an axial side expansion view of the utility model;

[0024] Figure 3 Shown is a front view of the present invention.

[0025] In the picture:

[0026] 1. Interventional guidewire body;

[0027] 2. Structural components; 21. Push rod; 22. Shaping section;

[0028] 3. Protective components; 31. Spring coil; 32. Protective layer;

[0029] 4. Guide component; 41. Guide head. DETAILED DESCRIPTION

[0030] Now the utility model is further described in detail with reference to the accompanying drawings. Figure 1 , Figure 1 Shows an axonometric view of the present invention; see Figure 2 , Figure 2 Shows the axial side expansion diagram of the utility model; please refer to Figure 3 , Figure 3 Shows a front view of the utility model; Figure 1-3 As shown, a drumstick-shaped tip interventional guidewire specifically used for passing through a coronary stent includes

[0031] A structural component 2, wherein the structural component 2 is fixedly arranged at the front end of the interventional guidewire body 1;

[0032] A protective component 3, the protective component 3 is fixedly arranged on the outer side of the front end of the structural component 2 and the interventional guide wire body 1;

[0033] A guide component 4 is fixedly disposed at the front end of the protective component 3. The structural component 2 can provide fixed and curved support for the interventional guidewire body 1. The protective component 3 can reduce friction and damage to the blood vessel wall, and the coronary stent can be passed through the guide component 4.

[0034] This is a drumstick-shaped head interventional guidewire specially used for passing through a coronary stent. During the doctor's use, the push rod 21 and the shaping segment 22 can provide good guidance and support. At the same time, the push rod 21 and the shaping segment 22 are coated with a PTFE hydrophobic coating on the outside, which can effectively reduce friction and damage to the blood vessel wall. At the same time, the spring coil 31 can increase the softness, making the shaping segment 22 easy to shape. At the same time, the material that is not transparent to X-rays can effectively enhance the visibility of the guidewire and improve the safety of the operation. The guide head 41 is a 2mm drumstick-shaped head setting with better passability, and the head end diameter is larger than the common stent mesh, which can effectively prevent the guidewire from passing through the stent mesh, reducing the difficulty of the operation while reducing the risk of the operation. At the same time, the preparation of the polymer material makes the guide head 41 have good flexibility and fatigue resistance.

[0035] Optionally, the guiding component 4 includes:

[0036] The guide head 41 is fixedly arranged at the top of the protective component 3 and is made of a polymer material with high elasticity, so that the guide head 41 has good flexibility and fatigue resistance.

[0037] Optionally, the guide head 41 is configured as a 2 mm drumstick-like head, so that the guide head 41 has better passability.

[0038] Optionally, the diameter of the tip of the guide head 41 is larger than the common stent mesh, which can effectively prevent the guide wire from passing through the stent mesh, reduce the difficulty of the operation, and reduce the risk of the operation.

[0039] Optionally, the structural component 2 includes:

[0040] A push rod 21, the push rod 21 is fixedly arranged at the front end of the interventional guide wire body 1;

[0041] The shaping segment 22 is fixedly arranged at the front end of the pushing rod 21. The pushing rod 21 can provide support and movable space for the shaping segment 22. The pushing rod 21 provides sufficient supporting force and torsion control to the front end of the shaping segment 22, so that the shaping segment 22 can better drive the guide head 41 to pass through the coronary stent.

[0042] Optionally, the push rod 21 and the shaping section 22 are made of nickel-titanium alloy.

[0043] Optionally, the protective component 3 includes:

[0044] A spring coil 31 is fixedly disposed on the outer side of the front end of the shaping section 22 and is made of an X-ray-opaque material;

[0045] The protective layer 32 is coated with a PTFE hydrophobic coating on the outside of the spring coil 31, the push rod 21, and the shaping section 22. The outside of the spring coil 31 is coated with a PTFE hydrophobic coating, so that the protective layer 32 can effectively reduce friction and damage to the blood vessel wall. At the same time, the spring coil 31 can increase softness and be easy to shape. At the same time, the material that is not transparent to X-rays can effectively enhance the visibility of the guidewire.

[0046] Working principle: This is a drumstick-shaped head-end interventional guidewire specially used for passing through the coronary stent. During the use by doctors, in the first step, the push rod 21 and the shaping segment 22 can provide good guidance and support force. In the second step, the push rod 21 and the shaping segment 22 are coated with a PTFE hydrophobic coating on the outside, which can effectively reduce friction and damage to the blood vessel wall. In the third step, the spring coil 31 can increase the softness, and the material that is not transparent to X-rays can effectively enhance the visibility of the guidewire. In the fourth step, the guide head 41 is a 2mm drumstick-shaped head setting with better passability, and the diameter of the head end is larger than the common stent mesh, which can well prevent the guidewire from passing through the stent mesh. At the same time, the preparation of the polymer material makes the guide head 41 have good flexibility and fatigue resistance.

Claims

1. A drumstick-shaped tip interventional guidewire specifically for passing through a coronary stent, characterized by: include A structural component (2), wherein the structural component (2) is fixedly arranged at the front end of the interventional guide wire body (1); A protective component (3), the protective component (3) being fixedly arranged on the outer side of the front end of the structural component (2) and the interventional guide wire body (1); A guide component (4), wherein the guide component (4) is fixedly arranged at the front end of the protective component (3), wherein: The structural component (2) can provide fixed and curved support to the interventional guide wire body (1), and the protective component (3) can reduce friction and damage to the blood vessel wall, allowing the coronary stent to pass through the guiding component (4).

2. The drumstick-shaped tip interventional guidewire specifically for passing through a coronary stent according to claim 1, characterized in that: The guide component (4) comprises: A guide head (41), wherein the guide head (41) is fixedly arranged on the top end of the protective component (3) and the guide head (41) is made of a polymer material with high elasticity.

3. The drumstick-shaped tip interventional guidewire specifically for passing through a coronary stent according to claim 2, characterized in that: The guide head (41) is a 2 mm drumstick-like head.

4. The drumstick-shaped tip interventional guidewire specifically for passing through a coronary stent according to claim 2, characterized in that: The diameter of the head end of the guide head (41) is larger than the common stent mesh.

5. The drumstick-shaped tip interventional guidewire specifically for passing through a coronary stent according to claim 1, characterized in that: The structural component (2) comprises: A push rod (21), the push rod (21) being fixedly arranged at the front end of the interventional guide wire body (1); A shaping section (22), wherein the shaping section (22) is fixedly arranged at the front end of the pushing rod (21).

6. The drumstick-shaped tip interventional guidewire specifically for passing through a coronary stent according to claim 5, characterized in that: The pushing rod (21) and the shaping section (22) are made of nickel-titanium alloy.

7. The drumstick-shaped tip interventional guidewire specifically for passing through a coronary stent according to claim 6, characterized in that: The protective component (3) comprises: A spring coil (31), wherein the spring coil (31) is fixedly arranged on the outside of the front end of the shaping section (22) and the spring coil (31) is made of an X-ray-opaque material; A protective layer (32) is formed by coating the spring coil (31), the push rod (21), and the outer sides of the shaping section (22) with a PTFE hydrophobic coating.

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