Guiding head of vein stripping device

Abstract

The utility model relates to a guide head of a vein stripping device, which comprises a guide wire, the right end of the guide wire is connected with a connecting piece, a core wire is arranged in the guide wire, the left side end of the core wire is connected with a support spring, and a TPU (thermoplastic polyurethane) layer is coated between the outer wall of the core wire and the inner wall of the guide wire. According to the guide head of the vein exfoliator, the guide wire is arranged, the guide head is used for replacing the front end of the exfoliator, and the connecting piece is connected with the exfoliator through threads; the guide wire is soft and good in rebound resilience, the supporting spring can enhance the elasticity of the combined part of the guide section and the transition section, and the guide effect of the guide section on the transition section and the supporting section during turning is improved; the hydrophilic coating on the outer layer of the guide wire is very lubricated, so that the guide head can flexibly pass through the blood vessel in the process of pushing the exfoliator into the vein blood vessel, the damage to the blood vessel wall is reduced, the operation pain is relieved, and the problems of superficial thrombophlebitis, obvious pain at the affected part, hematoma and the like which are easy to occur after the operation are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical medical equipment parts, in particular to a vein stripping device guide head. Background Art

[0002] Varicose veins are a vascular disease caused by blood stasis, weak venous walls and other factors that lead to tortuosity and dilation of the veins. Varicose veins in the lower limbs are a common disease. If not treated in time, they may cause serious consequences such as leg ulcers and venous thrombosis. Generally speaking, patients can choose different treatment methods according to the degree of varicose veins. For patients with severe varicose vein symptoms and obvious venous dilation, traditional vein stripping surgery can be selected for treatment.

[0003] The surgery for stripping the great saphenous vein trunk requires a vein stripper. The traditional stripper is generally composed of a metal head with two cones and a multi-strand metal wire rope with a polymer material tube in the middle. After the vein is bent, it becomes a spider web, earthworm shape, or a hard lump nodule like a tree tumor. The thicker metal head of the stripper and the harder wire rope make it difficult for it to pass through the veins and may even damage the blood vessel wall. This can easily cause postoperative thrombophlebitis, obvious pain in the affected area, and hematoma. In addition, due to obstacles such as venous valves, diseased blood vessels, and large-angle vascular bends, the insertion will be difficult and cannot be continued. Multiple incisions are required and the same surgical process is repeated, which increases the patient's pain, the doctor's labor intensity and the operation time. Therefore, it is necessary to propose a vein stripper guide to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a vein stripping device guide head which is easy to install and replace.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vein stripping device guide head, comprising a guide wire, the right end of the guide wire is connected to a connector, a core wire is arranged inside the guide wire, a support spring is connected to the left end of the core wire, a TPU layer is coated between the outer wall of the core wire and the inner wall of the guide wire, the TPU layer and the inner wall of the guide wire are coated with a hydrophilic coating, and a threaded hole is arranged inside the connector;

[0006] The core wire is provided with a support section, a transition section and a guide section from right to left, the transition section is provided between the support spring and the support section, the guide section is provided on the left side of the support spring, one end of the connecting piece is connected to the support section of the guide wire, the end of the connecting piece connected to the support section is a smooth arc surface, and the other end of the connecting piece is provided with a threaded hole.

[0007] Furthermore, the TPU layer is wrapped around the core wire and the outside of the support spring. The material of the core wire is nickel-titanium alloy. The cross-sectional diameter of the support segment is larger than the cross-sectional diameter of the guide segment. The support segment and the guide segment are smoothly connected through a length segment.

[0008] Furthermore, the inner diameter of the support spring is close to the diameter of the middle part of the transition section, and the inner hole of the support spring is tightly matched with the middle part of the transition section.

[0009] Furthermore, the length of the guide wire is 10 cm-50 cm, and the outer diameter of the guide wire is in the range of 0.5 mm-1.5 mm.

[0010] Furthermore, the end surface of the guide section is wrapped with a TPU layer 103 and presents a smooth arc surface. The length of the guide section is 5cm-15cm.

[0011] Furthermore, the connecting piece is made of medical stainless steel.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The guide head of the venous stripping device is provided with a guide wire. When in use, the guide head of the present invention is used to replace the front end of the stripping device before surgery, and the connector is connected to the stripping device through threads. The guide wire is soft and has good resilience, and the support spring can enhance the elasticity of the combined part of the guide section and the transition section, thereby improving the guiding effect of the guide section on the transition section and the support section when turning. The hydrophilic coating on the outer layer of the guide wire is very lubricating, and in the process of pushing the stripping device into the vein, the guide head can flexibly pass through the blood vessel, thereby reducing damage to the blood vessel wall, and at the same time, the number of incisions can be reduced, and the pain of surgery can be alleviated. In this way, the problems of thrombophlebitis, obvious pain in the affected area, and hematoma, which are easy to occur after surgery, are effectively improved, and the problems of thrombophlebitis, obvious pain in the affected area, and hematoma, which are easy to occur after surgery, are solved. In addition, obstacles such as venous valves, diseased blood vessels, and large-angle blood vessel bends may cause poor insertion and inability to continue to advance, and multiple incisions are required to repeat the same surgical process, which increases the pain of patients, the labor intensity of doctors, and the time of surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the core wire and support spring structure of the utility model.

[0017] In the figure: 1, guide wire; 101, core wire; 1011, support section; 1012, transition section; 1013, guide section; 102, support spring; 103, TPU layer; 104, hydrophilic coating; 2, connector; 201, threaded hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The vein stripping device guide head in this embodiment includes a guide wire 1, the right end of the guide wire 1 is connected to a connector 2, a core wire 101 is arranged inside the guide wire 1, a support spring 102 is connected to the left end of the core wire 101, a TPU layer 103 is coated between the outer wall of the core wire 101 and the inner wall of the guide wire 1, the TPU layer 103 and the inner wall of the guide wire 1 are coated with a hydrophilic coating 104, and a threaded hole 201 is arranged inside the connector 2;

[0020] The core wire 101 is provided with a support section 1011, a transition section 1012 and a guide section 1013 from right to left. The transition section 1012 is provided between the support spring 102 and the support section 1011. The guide section 1013 is provided on the left side of the support spring 102. One end of the connecting member 2 is connected to the support section 1011 of the guide wire 1. The end of the connecting member 2 connected to the support section 1011 is a smooth arc surface, and the other end of the connecting member 2 is provided with a threaded hole 201.

[0021] In specific implementation, by setting the guide wire 1, when in use, before the operation, the front end head of the stripper is replaced with the guide head of the present invention, and the connector 2 is connected to the stripper by a thread; the guide wire 1 is soft and has good resilience, and the support spring 102 can enhance the elasticity of the combined part of the guide section 1013 and the transition section 1012, and improve the guiding effect of the guide section on the transition section 1012 and the support section 1011 when turning; the hydrophilic coating 104 on the outer layer of the guide wire is very lubricated, and in the process of pushing the stripper into the vein, the guide head can flexibly pass through the blood vessel to reduce damage to the blood vessel wall, and at the same time, the number of incisions can be reduced, and the pain of surgery can be alleviated. In this way, the problems of superficial thrombophlebitis, obvious pain in the affected area and hematoma that are prone to occur after surgery are effectively improved, and the problem that the existing stripper has a thicker metal head and a harder wire rope, which makes it difficult to pass through the vein and may even damage the blood vessel wall is solved.

[0022] When implementing, follow these steps:

[0023] 1) First replace the front end of the stripper with the guide head, and connect the connector 2 to the stripper through threads;

[0024] 2) Then the guide wire 1 is soft and has good resilience, and the support spring 102 can enhance the elasticity of the combined portion of the guide segment 1013 and the transition segment 1012, thereby improving the guiding effect of the guide segment on the transition segment 1012 and the support segment 1011 when turning;

[0025] 3) The hydrophilic coating 104 on the outer layer of the guide wire 1 is very lubricating;

[0026] 4) Finally, when the stripper is pushed into the vein, the guide head can flexibly move in the blood vessel to reduce damage to the blood vessel wall.

[0027] In summary, the guide head of the venous stripping device is provided with a guide wire 1. When in use, the guide head of the present invention is used to replace the front end of the stripping device before surgery, and the connector 2 is connected to the stripping device through a thread; the guide wire 1 is soft and has good resilience, and the support spring 102 can enhance the elasticity of the combined portion of the guide section 1013 and the transition section 1012, thereby improving the guiding effect of the guide section on the transition section 1012 and the support section 1011 when turning; the hydrophilic coating 104 on the outer layer of the guide wire 1 is very lubricated, and in the process of pushing the stripping device into the vein, the guide head It can flexibly pass through the blood vessels to reduce damage to the blood vessel walls, while also reducing the number of incisions and alleviating surgical pain. In this way, problems such as thrombophlebitis, obvious pain in the affected area, and hematoma, which are common after surgery, are effectively improved. Obstacles such as venous valves, diseased blood vessels, and large-angle vascular bends will cause poor insertion and inability to continue advancing. Multiple incisions are required and the same surgical process is repeated, increasing the patient's pain, the doctor's labor intensity, and the operation time.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vein stripping device guide head, comprising a guide wire (1), characterized in that: The right end of the guide wire (1) is connected to a connector (2), a core wire (101) is arranged inside the guide wire (1), a support spring (102) is connected to the left end of the core wire (101), a TPU layer (103) is coated between the outer wall of the core wire (101) and the inner wall of the guide wire (1), the TPU layer (103) and the inner wall of the guide wire (1) are coated with a hydrophilic coating (104), and a threaded hole (201) is arranged inside the connector (2); The core wire (101) is provided with a support section (1011), a transition section (1012) and a guide section (1013) from right to left in sequence; the transition section (1012) is provided between the support spring (102) and the support section (1011); the guide section (1013) is provided on the left side of the support spring (102); one end of the connecting piece (2) is connected to the support section (1011) of the guide wire (1); the end of the connecting piece (2) connected to the support section (1011) is a smooth arc surface; the other end of the connecting piece (2) is provided with a threaded hole (201).

2. The vein stripping device guide head according to claim 1, characterized in that: The TPU layer (103) is wrapped around the core wire (101) and the outside of the support spring (102); the material of the core wire (101) is nickel-titanium alloy; the cross-sectional diameter of the support segment (1011) is greater than the cross-sectional diameter of the guide segment (1013); the support segment (1011) and the guide segment (1013) are smoothly connected via a length segment (1012).

3. The vein stripping device guide head according to claim 1, characterized in that: The inner diameter of the support spring (102) is close to the diameter of the middle part of the transition section (1012), and the inner hole of the support spring (102) is tightly matched with the middle part of the transition section (1012).

4. The vein stripping device guide head according to claim 1, characterized in that: The length of the guide wire (1) is 10 cm-50 cm, and the outer diameter of the guide wire (1) is in the range of 0.5 mm-1.5 mm.

5. The vein stripping device guide head according to claim 1, characterized in that: The end surface of the guide section (1013) is wrapped with a TPU layer (103) and presents a smooth arc surface. The length of the guide section (1013) is 5 cm-15 cm.

6. The vein stripping device guide head according to claim 1, characterized in that: The connecting piece (2) is made of medical stainless steel.

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