CN219398650U

CN219398650U - Exchangeable interventional catheter device

Info

Publication number: CN219398650U
Application number: CN202320849115.2U
Authority: CN
Inventors: 张睿
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-14
Filing date: 2023-04-14
Publication date: 2023-07-25
Anticipated expiration: 2033-04-14

Abstract

The present application relates to the technical field of catheter devices in interventional technology, in particular to an exchangeable interventional catheter device comprising: a primary catheter; the device comprises a replacement guide wire, wherein one end of the replacement guide wire is provided with a connecting piece, and the connecting piece is used for fixedly connecting with the end part of the original catheter; the replacement pipe can be sleeved on the outer wall of the original catheter and can move along the length direction of the original catheter. The quick connection of the replacement guide wire and the end part of the original catheter is utilized in the application, and the replacement tube is sleeved on the outer wall of the replacement guide wire and finally passes through the outer wall of the original catheter, so that the replacement efficiency is improved.

Description

Exchangeable interventional catheter device

Technical Field

The present application relates to the field of surgical intervention tools, and in particular to an exchangeable interventional catheter device.

Background

The interventional catheter is also called as medical catheter, is a thin tube made of medical grade material, and has wide functions. Medical catheters are manufactured for specific applications, such as cardiovascular, urological, gastrointestinal, neurovascular, and ophthalmic surgery, which allow drainage, administration of liquids or gases, access to surgical instruments, and also perform various other tasks depending on the type of catheter.

In some cases, the catheter needs to be replaced according to different drug administration and the like, the traditional technology needs to withdraw the original guide wire, then the hard crude guide wire stretches into the original guide wire to form a guide, a new guide wire is gradually fed into the original guide wire by using the hard crude guide wire, and the original guide wire is withdrawn after the new guide wire enters the corresponding position.

For the related art, when the blood vessel of some patients is in tortuosity, the original catheter may be folded and twisted, so that time and labor are wasted when a new catheter is put on again, and the possibility of folding and twisting again is also provided, so that the labor is wasted.

Disclosure of Invention

In order to solve the technical problem, the application provides an exchangeable interventional catheter device, which is provided with a new catheter which can be conveniently and externally connected to the outside of an original catheter, and the new catheter is sleeved on the outer wall of the original catheter, so that a quick and stable catheter replacement process is realized.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

an exchangeable interventional catheter device, comprising:

a primary catheter;

the device comprises a replacement guide wire, wherein one end of the replacement guide wire is provided with a connecting piece, and the connecting piece is used for forming fixed connection with the end part of an original catheter;

the replacement pipe can be sleeved on the outer wall of the original catheter and moves along the length direction of the original catheter.

According to the technical scheme, when a new replacement tube is needed to be replaced, the tail end of the original catheter, which is located outside, is sheared off, then the end part of the replacement guide wire is connected to the tail end of the original catheter, finally the replacement tube is moved along the replacement guide wire until the replacement tube is sleeved on the outer wall of the original catheter and is moved along the track direction of the original catheter until the original catheter is removed from a diseased part, and the replacement tube is left in the body. Because the replacement pipe moves along the outer wall of the original catheter, the phenomena of resistance and the like generated by bending the original catheter when moving from the inside of the original catheter are reduced, the replacement efficiency is improved, the replacement process is simpler and more convenient, and the efficiency is further improved.

As one of the alternative embodiments of the present application, the end portion of the replacement guide wire connected to the original catheter is provided with a transition section, and the transition section gradually expands towards the original catheter.

According to the technical scheme, in the process of transition transfer of the replacement catheter from the replacement guide wire to the outer side wall of the original catheter, the transition section can enable the transfer process to be smooth, so that smooth replacement is facilitated, and replacement efficiency is improved.

As one of the alternative embodiments of the present application, the outer side wall of the transition section is a curved surface, and the diameter of the end of the transition section close to the original catheter is slightly larger than the outer diameter of the original catheter.

As one of the alternative embodiments of the present application, the transition section is provided as a silicone rubber.

As one optional embodiment of the application, the connecting piece is provided with a C-shaped nail, one end of the C-shaped nail is fixedly connected with the transition section, and the C-shaped nail is connected with the end part of the original catheter after being sheared off.

Realize above-mentioned technical scheme, put forward a concrete structure of connecting piece, utilize C shape nail to connect on former pipe, the operation is more simple and convenient, improves and changes efficiency.

As one optional embodiment of the application, the C-shaped nail comprises a fixedly connected section connected with the transition section, a bending section connected with the original conduit and a middle section arranged between the fixedly connected section and the bending section, and arc-shaped chamfer angles are arranged at the joint of the middle section and the fixedly connected section and the joint of the middle section and the bending section.

By means of the technical scheme, the smoothness of the C-shaped nails is further improved, and the C-shaped nails are smoother when the replacement pipe passes through.

As one of the alternative embodiments of the present application, the fastening section is provided in a rounded arc shape.

In summary, the present application at least includes the following beneficial technical effects:

1. when a new replacement tube is needed to be replaced, the tail end of the original catheter positioned outside is firstly sheared off, then the end part of the replacement guide wire is connected to the tail end of the original catheter, finally the replacement tube is moved along the replacement guide wire until the replacement guide wire is sleeved on the outer wall of the original catheter and is moved along the track direction of the original catheter until the original catheter is removed from the affected part, and the replacement tube is left in the body. Because the replacement pipe moves along the outer wall of the original catheter, the phenomena of resistance and the like generated by bending the original catheter when moving from the inside of the original catheter are reduced, the replacement efficiency is improved, the replacement process is simple and convenient, and the efficiency is further improved;

2. the end part of the replacement guide wire is provided with a transition section which is connected with the original guide pipe, and the transition section plays a good transition role in the transfer process of the replacement pipe, so that smooth movement of the replacement pipe is ensured, and the replacement efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of an exchangeable interventional catheter device;

fig. 2 is a block diagram mainly used to illustrate the principle of use of the exchangeable interventional catheter device.

Reference numerals: 1. a primary catheter; 2. replacing the guide wire; 3. a connecting piece; 31. a fixedly connected section; 32. a bending section; 33. an intermediate section; 4. replacing the tube; 5. a transition section; 11. a primary guide wire.

Description of the embodiments

The present application is described in further detail below in conjunction with figures 1-2.

Referring to fig. 1, an exchangeable interventional catheter device according to an embodiment of the present application is disclosed, comprising a primary catheter 1; the catheter also comprises a replacement guide wire 2, wherein one end of the replacement guide wire 2 is provided with a connecting piece 3, and the connecting piece 3 is used for forming fixed connection with the end part of the original catheter 1; the replacement tube 4 can be sleeved on the outer wall of the original catheter 1 and can move along the length direction of the original catheter 1. When a new replacement tube 4 is needed to be replaced, firstly, the tail end of the original catheter 1 positioned outside is sheared off, a conventional cutter can be used by using a ring cutter, meanwhile, the original guide wire 11 can be sheared off together, then the end part of the replacement guide wire 2 is connected to the tail end of the original catheter 1, finally, the replacement tube 4 is moved along the replacement guide wire 2 until being sleeved on the outer wall of the original catheter 1 and moved along the track direction of the original catheter 1 until the affected part is removed, the replacement tube 4 is left in the body, and the phenomenon that the replacement tube 4 moves along the outer wall of the original catheter 1 due to resistance generated by bending of the original catheter 1 is reduced, so that the replacement efficiency is improved.

Referring to fig. 1 and 2, a transition section 5 is provided at one end of the replacement wire 2 connected to the original catheter 1, the transition section 5 gradually expands toward the original catheter 1, in this embodiment, the transition section 5 is formed in a circular truncated cone shape, and the outer side wall of the transition section 5 is curved and made of silicone rubber, so that smoothness is ensured to make the transition of the replacement tube 4 from the replacement wire 2 to the original catheter 1 smoother and more convenient. The diameter of one end of the transition section 5, which is close to the original guide pipe 1, is slightly larger than the outer diameter of the original guide pipe 1, so that the problem that the transition is not smooth due to steps with different diameters is avoided.

Referring to fig. 1 and 2, in the present embodiment, the connector 3 is configured as a C-shaped nail, which includes a fixing section 31 integrally connected with the transition section 5, a bending section 32 press-riveted with the original catheter 1, and an intermediate section 33 disposed between the fixing section 31 and the bending section 32, wherein the connection between the intermediate section 33 and the fixing section 31 and the connection between the intermediate section 33 and the bending section 32 are each provided with an arc chamfer, and the fixing section 31 is configured as a smooth arc. The above setting can make the replacement tube 4 more smooth and smooth when transitionally moving from the replacement guide wire 2 to the outer wall of the original catheter 1. In operation, the C-shaped staple is driven by an external small stapler to form a fixed connection with the end of the original guide tube 1, and other stapling tools can be used.

The implementation principle of the exchangeable interventional catheter device in the embodiment of the application is as follows: the operation steps are that the tail end of the original catheter 1 positioned outside and the original guide wire 11 are sheared off together, then the end part of the replacement guide wire 2 is connected to the tail end of the original catheter 1 by a stapler, finally the replacement tube 4 is sleeved at one end of the replacement guide wire 2 and moves towards the original catheter 1 until the replacement tube is sleeved on the outer wall of the original catheter 1 and moves along the track direction of the original catheter 1 until the affected part is removed from the original catheter 1 and the original guide wire 11, and the replacement tube 4 is left in the body.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. An exchangeable interventional catheter device, comprising:

a primary catheter (1);

a connecting piece (3) is arranged at one end of the replacement guide wire (2), and the connecting piece (3) is used for forming fixed connection with the end part of the original catheter (1);

and the replacement pipe (4) can be sleeved on the outer wall of the original catheter (1) and moves along the length direction of the original catheter (1).

2. The interchangeable interventional catheter device of claim 1, wherein: one end part of the replacement guide wire (2) connected with the original catheter (1) is provided with a transition section (5), and the transition section (5) gradually expands towards the original catheter (1).

3. The interchangeable interventional catheter device of claim 2, wherein: the outer side wall of the transition section (5) is a curved surface, and the diameter of one end of the transition section (5) close to the original guide pipe (1) is slightly larger than the outer diameter of the original guide pipe (1).

4. The interchangeable interventional catheter device of claim 3, wherein: the transition section (5) is made of organic silicon rubber.

5. The interchangeable interventional catheter device of claim 2, wherein: the connecting piece (3) is a C-shaped nail, one end of the C-shaped nail is fixedly connected with the transition section (5), and the C-shaped nail is connected with the end of the original catheter (1) after being sheared off.

6. The interchangeable interventional catheter device of claim 5, wherein: the C-shaped nail comprises a fixedly connected section (31) connected with the transition section (5), a bending section (32) connected with the original catheter (1) and an intermediate section (33) arranged between the fixedly connected section (31) and the bending section (32), wherein arc-shaped chamfers are arranged at the joint of the intermediate section (33) and the fixedly connected section (31) and the joint of the intermediate section (33) and the bending section (32).

7. The interchangeable interventional catheter device of claim 6, wherein: the fixedly connected section (31) is in a smooth arc shape.