Multidirectional intervention catheter
By designing a multi-directional interventional catheter and using the J-shaped interventional end and the guidewire bending mechanism, the problem of difficulty in adjusting the delivery direction of existing catheters is solved, a more flexible and accurate interventional operation is achieved, and the difficulty of the operation and the harm to the human body are reduced.
Patent Information
- Application Number
- CN202420785974.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-04-16
AI Technical Summary
During the interventional process, it is difficult to adjust the delivery direction according to the delivery path, which increases the difficulty of surgery.
A multi-directional interventional catheter is designed. Its interventional end is J-shaped, with a guide wire groove and a developing line inside. The guide wire is connected to the pulling block, and the catheter is equipped with scale marks. By withdrawing the guide wire, the catheter insertion end can be bent and adjusted to adapt to multi-arc paths.
Through the multi-directional adjustment of the catheter, the difficulty of surgery is reduced, the flexibility and accuracy of the interventional process are improved, and the damage to human pipelines is reduced.
Smart Images
Figure CN222341792U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical devices, and specifically relates to a multi-directional intervention catheter. Background Art
[0002] Interventional therapy is an emerging treatment method between surgical and internal medicine treatment, including intravascular intervention and extravascular intervention. Interventional therapy is a minimally invasive treatment method that creates a tiny channel with a diameter of several millimeters in the blood vessels or skin, or through the original channels of the human body, to treat the lesion locally under the guidance of imaging equipment (angiography, fluoroscopy, CT, MR, B-ultrasound) without exposing the lesion through surgery. At present, interventional surgery widely uses catheters for operation. However, since the delivery path usually has bends and bifurcations, it is not easy for existing catheters to adjust the delivery direction according to the delivery path during the intervention process, which increases the difficulty of the operation. Utility Model Content
[0003] In view of the above problems, the purpose of the present invention is to provide a multi-directional interventional catheter to solve the problems raised in the above background technology.
[0004] To achieve the above objectives, the utility model adopts the following technical solution: a multi-directional interventional catheter, comprising a catheter body, the interventional end of the catheter body is J-shaped, a guide wire groove and a developing line are provided inside the catheter body, a guide wire is inserted into the guide wire groove, the guide wire is connected to a pull block, and scale lines are set on the catheter body.
[0005] The beneficial effects of the utility model are as follows: the initial shape of the intervention end of the catheter body is J-shaped, and a guide wire is inserted into the guide wire groove opened inside the catheter body. During the intervention process, when it is necessary to adjust the delivery direction according to the delivery path, it is only necessary to pinch the pull block to slowly pull out the guide wire. When the guide wire support is lost, the intervention end of the catheter body will gradually bend, which is convenient for the surgeon to transport the catheter. The degree of bending of the intervention end of the catheter body is different due to the different distances of the guide wire withdrawal, so it can adapt to curved paths with multiple arcs and reduce the difficulty of the operation.
[0006] In order to assist the surgeon to intuitively identify the position and distance of the intervention end of the catheter body:
[0007] As a further improvement of the above technical solution: the developing line is arranged in the inner interlayer of the intervention end of the catheter body, and the shape of the developing line is ring-shaped.
[0008] The beneficial effect of this improvement is that by setting up the development line, clear imaging can be achieved under ultrasound development, assisting the surgeon to intuitively identify the position and distance of the intervention end of the catheter body.
[0009] In order to reduce the damage to human body pipes during intervention:
[0010] As a further improvement of the above technical solution: the edge of the intervention end of the catheter body is an arc-shaped without edges and corners.
[0011] The beneficial effect of this improvement is that the intervention end of the catheter body is an arc-shaped without edges and corners, which can reduce the damage to the human body's channels during the intervention process.
[0012] To help the surgeon determine the intervention distance:
[0013] As a further improvement of the above technical solution: the scale lines are set on the outer wall of the catheter body along the length direction of the catheter body.
[0014] The beneficial effect of this improvement is that by setting up the scale lines on the outer wall of the catheter body, it is convenient for the surgeon to read the intervention distance of the catheter body.
[0015] In order to reduce the resistance to guidewire insertion and drive the guidewire to move in and out:
[0016] As a further improvement of the above technical solution: the intervention end of the guide wire is hemispherical, and the pulling block is located at the other end of the guide wire away from the intervention end.
[0017] The beneficial effects of this improvement are: by making the intervention end of the guide wire hemispherical, the movement resistance of the guide wire inserted into the guide wire groove can be reduced, and by setting up the pulling block, the guide wire can be easily driven to move in and out. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is the front view of the utility model;
[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0020] Figure 3 This is a schematic diagram of the guide wire disassembly structure of the utility model;
[0021] Figure 4 For the utility model Figure 3 Partial enlarged view of point A;
[0022] Figure 5 This is a schematic diagram of the guide wire structure of the utility model;
[0023] In the figure: 1. catheter body; 2. guide wire groove; 3. developing line; 4. guide wire; 5. pull block; 6. scale line. DETAILED DESCRIPTION
[0024] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.
[0025] like Figure 1-5 As shown, a multi-directional interventional catheter comprises a catheter body 1, the interventional end of the catheter body 1 is J-shaped, a guide wire slot 2 and a developing line 3 are provided inside the catheter body 1, a guide wire 4 is inserted into the guide wire slot 2, the guide wire 4 is connected to a pull block 5, and a scale line 6 is provided on the catheter body 1. The initial shape of the interventional end of the catheter body 1 is J-shaped, and the guide wire 4 is inserted into the guide wire slot 2 provided inside the catheter body. During the intervention, when it is necessary to adjust the conveying direction according to the conveying path, it is only necessary to pinch the pull block 5 to slowly pull out the guide wire 4. When the support of the guide wire 4 is lost, the interventional end of the catheter body 1 will gradually bend, which is convenient for the surgeon to convey the catheter. The bending degree of the interventional end of the catheter body 1 is different due to the different distances of the guide wire 4 being pulled out, so that it can adapt to the curved paths with multiple arcs and reduce the difficulty of the operation. The developing line 3 is provided on the catheter body 1 The intervention end is in the inner interlayer, and the shape of the developing line 3 is annular. Through the establishment of the developing line 3, clear imaging can be achieved under ultrasonic development, which assists the surgeon to intuitively identify the position and distance of the intervention end of the catheter body 1. The edge of the intervention end of the catheter body 1 is an arc without edges. Through the intervention end of the catheter body 1 being an arc without edges, the damage to the human body's channels can be reduced during the intervention process. The scale lines 6 are established on the outer wall of the catheter body 1 along the length direction of the catheter body 1. Through the establishment of the scale lines 6 on the outer wall of the catheter body 1, it is convenient for the surgeon to read the intervention distance of the catheter body 1. The intervention end of the guide wire 4 is hemispherical, and the pull block 5 is located at the other end of the guide wire 4 away from the intervention end. Through the intervention end of the guide wire 4 is hemispherical, it is convenient to reduce the movement resistance of the guide wire 4 inserted into the guide wire slot 2. Through the establishment of the pull block 5, it is convenient to drive the guide wire 4 to move in and out.
[0026] The working principle of the utility model is as follows: the initial form of the intervention end of the catheter body 1 is J-shaped, and a guide wire 4 is inserted into the guide wire groove 2 opened inside the catheter body 1. During the intervention process, when the delivery direction needs to be adjusted according to the delivery path, it is only necessary to pinch the pull block 5 to slowly pull out the guide wire 4. When the support of the guide wire 4 is lost, the intervention end of the catheter body 1 will gradually bend, which is convenient for the surgeon to deliver the catheter. The bending degree of the intervention end of the catheter body 1 is different due to the different distances of pulling out the guide wire 4. It can adapt to the curved paths with multiple arcs, thereby reducing the difficulty of the operation. By setting up the developing line 3, clear imaging can be achieved under ultrasonic development, which can assist the surgeon to intuitively identify the position and distance of the intervention end of the catheter body 1. By setting up the intervention end of the catheter body 1 as an arc without edges, the damage to the human body's channels can be reduced during the intervention process. By setting up the scale lines 6 on the outer wall of the catheter body 1, the surgeon can read the intervention distance of the catheter body 1 conveniently. By setting up the hemispherical intervention end of the guide wire 4, the movement resistance of the guide wire 4 inserted into the guide wire slot 2 can be reduced. By setting up the pull block 5, the guide wire 4 can be driven to move in and out conveniently.
[0027] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes 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 apparatus.
[0028] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A multidirectional interventional catheter, comprising a catheter body (1), characterized in that: The intervention end of the catheter body (1) is J-shaped, a guide wire groove (2) and a developing line (3) are provided inside the catheter body (1), a guide wire (4) is inserted into the guide wire groove (2), the guide wire (4) is connected to a pull block (5), and a scale line (6) is provided on the catheter body (1).
2. A multi-directional interventional catheter according to claim 1, characterized in that: The developing line (3) is arranged in an inner layer of the intervention end of the catheter body (1), and the developing line (3) is in the shape of a ring.
3. A multi-directional interventional catheter according to claim 1, characterized in that: The edge of the intervention end of the catheter body (1) is an arc-shaped without edges or corners.
4. The multi-directional interventional catheter according to claim 1, characterized in that: The scale lines (6) are arranged on the outer wall of the catheter body (1) along the length direction of the catheter body (1).
5. The multi-directional interventional catheter according to claim 1, characterized in that: The intervention end of the guide wire (4) is hemispherical, and the pulling block (5) is located at the other end of the guide wire (4) away from the intervention end.