Balloon catheter dilation system

Abstract

The utility model relates to the technical field of medical instruments, in particular to a balloon catheter dilation system which comprises an inner tube, the surface of the inner tube is coaxially sleeved with a main balloon catheter body, the main balloon catheter body is provided with a main balloon, and a first inflation cavity is formed between the inner wall of the main balloon catheter body and the outer wall of the inner tube. The fixing seat is connected to the main balloon catheter body and the auxiliary balloon catheter body, the auxiliary balloon catheter body is coaxially and slidably connected to the outer portion of the main balloon catheter body in a sleeving mode, an auxiliary balloon is arranged at the end, close to the main balloon, of the auxiliary balloon catheter body, and an annular inflation cavity is formed between the auxiliary balloon catheter body and the main balloon catheter body; the annular inflation cavity is communicated with the auxiliary balloon. The first air inlet pipe is communicated with the first inflation cavity, the second air inlet pipe is communicated with the second inflation cavity, the main balloon catheter slides on the outer wall of the auxiliary balloon catheter, so that the distance between the main balloon and the auxiliary balloon is changed, and multiple diseased regions are treated at a time.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a balloon catheter dilation system. Background Art

[0002] A balloon catheter is a medical device commonly used in cardiovascular interventional treatment. It can deliver a balloon to a narrowed blood vessel through a catheter. However, in actual use, when encountering multiple vascular lesions, the existing balloon catheter can only expand a single lesion. Solving multiple lesions requires increasing the number of intubations for the patient, which is cumbersome to operate and increases the patient's pain due to multiple intubations. Therefore, there is an urgent need for a balloon catheter expansion system that can expand multiple lesions, thereby reducing the number of intubations and reducing the patient's pain. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a balloon catheter dilation system which can dilate multiple diseased parts, thereby reducing the number of intubation times and alleviating the pain of patients.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a balloon catheter dilation system, comprising:

[0005] An inner tube, a main balloon catheter body is coaxially sleeved on the surface of the inner tube, a main balloon is arranged at one end of the main balloon catheter body, and a first inflation cavity is arranged between the inner wall of the main balloon catheter body and the outer wall of the inner tube;

[0006] A fixing seat connected to the other end of the main balloon catheter body;

[0007] A secondary balloon catheter body, which is coaxially slidably sleeved on the outside of the main balloon catheter body, a secondary balloon is provided at one end of the secondary balloon catheter body close to the main balloon, a circular annular inflation cavity is provided between the secondary balloon catheter body and the main balloon catheter body, and the circular annular inflation cavity is communicated with the secondary balloon;

[0008] a first air inlet pipe, the first air inlet pipe being in communication with the first air charging chamber;

[0009] The second air inlet pipe is communicated with the second air charging chamber.

[0010] Furthermore, the balloon catheter dilatation system also includes a limiting mechanism, which includes a circular slider and a limiting portion. The limiting portion includes a strip hole arranged along the axial direction of the auxiliary balloon catheter body and a plurality of branch openings along the axial direction of the inner tube arranged along the circumferential section of the auxiliary balloon catheter body. The circular slider is fixedly connected to the outer wall of the main balloon catheter body, and a convex strip is provided on the circular slider which is slidably connected to the strip hole.

[0011] Furthermore, more than two limiting portions are distributed in a circular array along the axial direction of the auxiliary balloon catheter body.

[0012] Furthermore, a section of the main balloon catheter body located inside the main balloon body is provided with a developing mark, and a section of the auxiliary balloon catheter body located inside the auxiliary balloon body is provided with a developing mark.

[0013] Furthermore, a plurality of branch openings are arranged at equal intervals, and the distance between two adjacent branch openings is 3-5 cm.

[0014] The beneficial effect of the utility model is that the main balloon catheter body and the auxiliary balloon catheter body are sent in, so that the balloon catheter has the effect of treating multiple diseased parts, thereby reducing the number of intubation times and reducing the patient's pain. Then, the main balloon catheter body slides on the outer wall of the auxiliary balloon catheter body to change the distance between the auxiliary balloon and the main balloon, and real-time adjustment can be made so that the main balloon and the auxiliary balloon can accurately reach the diseased part. Then, the main balloon and the auxiliary balloon are inflated through the first air inlet pipe and the second air inlet pipe to expand the diseased part, thereby treating multiple diseased parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a balloon catheter dilation system according to a specific embodiment of the utility model;

[0016] Figure 2 for Figure 1 A magnified view of part A;

[0017] Figure 3 It is a partial structural schematic diagram of a balloon catheter dilation system according to a specific embodiment of the utility model;

[0018] Figure 4 for Figure 3 A-direction cross-sectional view.

[0019] Description of symbols

[0020] 1. Inner tube; 2. Main balloon catheter body; 21. Main balloon; 3. First inflation chamber; 4. Fixing seat; 5. Sub-balloon catheter body; 51. Sub-balloon; 6. Circular inflation chamber; 7. First air inlet pipe; 8. Second air inlet pipe; 9. Limiting mechanism; 91. Circular slider; 911. Raised strip; 92. Limiting part; 921. Strip hole; 922. Branch port; 10. Development mark. DETAILED DESCRIPTION

[0021] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0022] Please refer to Figures 1 to 4, 1. A balloon catheter dilation system, comprising:

[0023] An inner tube 1, a main balloon catheter body 2 is coaxially sleeved on the surface of the inner tube 1, a main balloon 21 is provided at one end of the main balloon catheter body 2, and a first inflation cavity 3 is provided between the inner wall of the main balloon catheter body 2 and the outer wall of the inner tube 1;

[0024] A fixing seat 4 connected to the other end of the main balloon catheter body 2;

[0025] A secondary balloon catheter body 5, the secondary balloon catheter body 5 is coaxially slidably sleeved on the outside of the main balloon catheter body 2, a secondary balloon 51 is provided at one end of the secondary balloon catheter body 5 close to the main balloon, a circular annular inflation cavity 6 is provided between the secondary balloon catheter body 5 and the main balloon catheter body 2, and the circular annular inflation cavity 6 is communicated with the secondary balloon;

[0026] A first air inlet pipe 7, the first air inlet pipe 7 is connected to the first air charging chamber 3;

[0027] The second air inlet pipe 8 is communicated with the second air charging chamber.

[0028] In the above embodiment, the guide wire passes through the inner tube 1 to send in the main balloon catheter body 2 and the auxiliary balloon catheter body 5, so that the balloon catheter has the effect of treating multiple diseased areas, thereby reducing the number of intubation times and reducing the patient's pain. Then, the main balloon catheter body 2 slides on the outer wall of the auxiliary balloon catheter body 5 to change the distance between the auxiliary balloon 51 and the main balloon 21, and real-time adjustment can be made so that the main balloon 21 and the auxiliary balloon 51 can accurately reach the diseased area. Then, the main balloon 21 and the auxiliary balloon 51 are inflated through the first air inlet pipe 7 and the second air inlet pipe 8 to expand the diseased area, thereby treating multiple diseased areas.

[0029] As an optional embodiment, the balloon catheter dilatation system also includes a limiting mechanism 9, which includes a ring slider 91 and a limiting portion 92. The limiting portion 92 includes a strip hole 921 arranged along the axial direction of the auxiliary balloon catheter body 5 and a plurality of branch openings 922 arranged along the axial direction of the inner tube 1 along the circumferential section of the auxiliary balloon catheter body 5. The ring slider 91 is fixedly connected to the outer wall of the main balloon catheter body 2, and a convex strip 911 is provided on the ring slider 91 which is slidably connected to the strip hole 921.

[0030] In the above embodiment, the convex strip 911 on the annular slider 91 moves axially along the inner tube 1 at the strip opening, thereby driving the main balloon catheter body 2 to slide on the auxiliary balloon catheter body 5 along the axial direction of the inner tube 1, thereby changing the distance between the auxiliary balloon 51 and the main balloon 21, and then the annular slider 91 is rotated so that the convex strip 911 of the annular slider 91 is engaged with the branch opening 922, so that the main balloon catheter body 2 and the auxiliary balloon catheter body 5 do not slide axially.

[0031] As an optional embodiment, more than two limiting portions 92 are distributed in a circular array along the axial direction of the auxiliary balloon catheter body 5 .

[0032] As an optional embodiment, a section of the main balloon catheter body 2 located inside the main balloon body 21 is provided with a developing mark 10 , and a section of the auxiliary balloon catheter body 5 located inside the auxiliary balloon body 51 is provided with a developing mark 10 .

[0033] The above is an embodiment. By observing the development mark 10, the positions of the main balloon and the auxiliary balloon can be better determined.

[0034] As an optional implementation, a plurality of branch openings 922 are arranged at equal intervals, and the distance between two adjacent branch openings 922 is 3-5 cm.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A balloon catheter dilation system, characterized in that: include: An inner tube, a main balloon catheter body is coaxially sleeved on the surface of the inner tube, a main balloon is arranged at one end of the main balloon catheter body, and a first inflation cavity is arranged between the inner wall of the main balloon catheter body and the outer wall of the inner tube; A fixing seat connected to the other end of the main balloon catheter body; A secondary balloon catheter body, which is coaxially slidably sleeved on the outside of the main balloon catheter body, a secondary balloon is provided at one end of the secondary balloon catheter body close to the main balloon, a circular annular inflation cavity is provided between the secondary balloon catheter body and the main balloon catheter body, and the circular annular inflation cavity is communicated with the secondary balloon; a first air inlet pipe, the first air inlet pipe being in communication with the first air charging chamber; The second air inlet pipe is communicated with the second air charging chamber.

2. The balloon catheter dilation system according to claim 1, characterized in that: The balloon catheter dilatation system also includes a limiting mechanism, which includes a circular slider and a limiting part. The limiting part includes a strip hole arranged along the axial direction of the auxiliary balloon catheter body and a plurality of branch openings along the axial direction of the inner tube arranged along the circumferential section of the auxiliary balloon catheter body. The circular slider is fixedly connected to the outer wall of the main balloon catheter body, and a convex strip is provided on the circular slider that is slidably connected to the strip hole.

3. The balloon catheter dilation system according to claim 1, characterized in that: The two or more limiting parts are distributed in a circular array along the axial direction of the auxiliary balloon catheter body.

4. The balloon catheter dilation system according to claim 1, characterized in that: A section of the main balloon catheter body located inside the main balloon body is provided with a developing mark, and a section of the auxiliary balloon catheter body located inside the auxiliary balloon body is provided with a developing mark.

5. The balloon catheter dilation system according to claim 3, characterized in that: Several branch openings are arranged at equal intervals, and the distance between two adjacent branch openings is 3-5cm.

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