A membrane rupture balloon catheter and its use method

Abstract

The present invention relates to the technical field of balloon catheters, and discloses a membrane rupture balloon catheter and a method for using the same. The technical solution thereof mainly comprises a catheter, a membrane rupture hole is formed on the catheter, a membrane rupture mechanism is arranged in the catheter, the membrane rupture mechanism comprises a guide part, the guide part is used to guide a membrane rupture device to the membrane rupture hole, when the membrane rupture device is extended into the catheter, the membrane rupture device moves toward one side of the balloon, the guide part changes the moving direction of the membrane rupture device, the membrane rupture device can be moved to the membrane rupture hole through the guide part, the membrane rupture device can be quickly extended out of the membrane rupture hole, the time for the membrane rupture device to search for the membrane rupture hole in the catheter is reduced, thereby reducing the overall operation time, and the guide groove can determine the direction of the membrane rupture device when it moves out of the membrane rupture hole, so that the operator can further change the direction of the membrane rupture device, and the operation is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of balloon catheters, and more particularly to a membrane rupturing balloon catheter. Background Art

[0002] In the medical field, balloon catheters are used for minimally invasive treatments, and their uses include treatments for vascular stenosis, heart valve stenosis, arrhythmia, and removal of embolic substances. A general balloon catheter has an outer cylinder shaft and an inner cylinder shaft constituting an axis, and the base end of the balloon and the distal end of the outer cylinder shaft and the base end of the balloon and the distal end of the inner cylinder shaft are connected to form a balloon.

[0003] The membrane rupture device can cut the vascular stent. When performing a membrane rupture operation through a balloon catheter, the membrane rupture device needs to be inserted into the balloon catheter, which has a membrane rupture hole. The membrane rupture device works after being extended from the balloon catheter. During the process from the membrane rupture device being inserted into the balloon catheter to being extended out of the membrane rupture hole, it is difficult for the membrane rupture device to accurately locate the membrane rupture hole, so that it takes a long time to locate the membrane rupture hole. Summary of the invention

[0004] In view of the shortcomings of the prior art, the first object of the present invention is to provide a membrane rupture balloon catheter, which is used to reduce the time for a membrane rupture device to locate the membrane rupture hole.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a membrane rupture balloon catheter, comprising a catheter, a membrane rupture hole is formed on the catheter, a membrane rupture mechanism is arranged inside the catheter, the membrane rupture mechanism comprises a guide part, the guide part is used to guide the membrane rupture device to the membrane rupture hole, a fixing mechanism is arranged on the catheter, the fixing mechanism comprises a support body and a power part, the power part is used to connect to an external air source, when the power part receives the external air source, the support body expands so that the support body is supported in the main blood vessel stent, and in a natural state, the support body contracts to be separated from the main blood vessel stent.

[0006] As a further improvement of the present invention, the guide part includes a guide block, which is fixedly connected in the catheter, and a guide groove is formed at one end of the guide block close to the film-breaking hole, and the guide groove is connected to the film-breaking hole, and a developing mark is coated on the film-breaking hole.

[0007] As a further improvement of the present invention, the guide groove is arc-shaped, the center of the circle where the arc surface of the guide groove is located is the first center of the circle, the membrane rupture hole includes an inner circular surface, the inner circular surface is located on the inner wall surface of the catheter, the center of the circle where the inner circular surface is located is the second center of the circle, the first center of the circle is located on the inner wall surface of the catheter, and the line between the first center of the circle and the second center of the circle is parallel to the central axis of the catheter.

[0008] As a further improvement of the present invention, the support body includes a balloon, the balloon is fixedly connected to the outside of the catheter, the power unit includes a trachea, an inner balloon is fixedly connected to the membrane rupture hole, the trachea is connected to the balloon and the inner balloon, and the trachea is adapted to the guide groove.

[0009] As a further improvement of the present invention, an end portion is provided at one end of the catheter, a through hole is opened on the end portion, a guide wire is provided at the through hole, the guide wire extends out of both ends of the catheter, and the support body is located between the end portion and the membrane rupture hole.

[0010] As a further improvement of the present invention, the diameter of the end portion gradually decreases from close to one end of the catheter to far away from one end of the catheter.

[0011] As a further improvement of the present invention, a first protrusion and a second protrusion are provided on the guide groove, the second protrusion is located between the first protrusion and the membrane breaking hole, the first protrusion and the second protrusion are both arc-shaped, and the diameter of the first protrusion is larger than the diameter of the second protrusion.

[0012] As a further improvement of the present invention, the straight-line distance from the first protrusion to the second protrusion is greater than one half of the inner diameter of the catheter and less than two thirds of the inner diameter of the catheter.

[0013] As a further improvement of the present invention, the diameter of the first protrusion is smaller than half of the width of the guide groove.

[0014] The second object of the present invention is to provide a membrane rupture balloon catheter, the membrane rupture balloon catheter comprising a catheter, the catheter having a membrane rupture hole, comprising the following steps:

[0015] a position adjustment step, extending the catheter into the blood vessel, and adjusting the position of the catheter under the development effect of the development mark so that the membrane rupture hole is directly opposite to the connection between the main blood vessel stent and the branch blood vessel stent;

[0016] A positioning step, wherein the membrane breaker extends along the guide groove through the membrane breaker hole to a membrane breaker position;

[0017] The supporting step is to turn on the air pump, and the gas enters the balloon and the inner balloon through the trachea to expand the balloon and the inner balloon on the membrane rupture hole until the outer surface of the balloon is in contact with the main blood vessel stent;

[0018] Membrane rupture step, start the membrane rupture device;

[0019] In the end step, the air pump extracts gas from the balloon through the trachea to shrink the balloon and remove the catheter.

[0020] Beneficial effects of the present invention: the present invention is provided with a guide part, when the membrane breaker is extended into the catheter, the membrane breaker moves toward the side of the balloon, and the guide part changes the moving direction of the membrane breaker. The membrane breaker can be moved to the membrane breaker hole through the guide part, so that the membrane breaker can be quickly extended out of the membrane breaker hole, reducing the time for the membrane breaker to search for the membrane breaker hole in the catheter, thereby reducing the overall operation time, and the membrane breaker guide groove can determine the direction of the membrane breaker when it moves out of the membrane breaker hole, which is convenient for the operator to further change the direction of the membrane breaker and facilitate the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0023] Figure 3 It is a top view of the present invention.

[0024] Figure numerals: 1. catheter; 11. membrane rupture hole; 2. membrane rupture mechanism; 22. guide part; 221. guide block; 222. guide groove; 3. fixing mechanism; 31. support body; 32. power part; 33. balloon; 34. trachea; 4. end part. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0026] Reference Figures 1 to 3As shown, a membrane rupture balloon catheter of this embodiment includes a catheter 1, a membrane rupture hole 11 is opened on the catheter 1, a membrane rupture mechanism 2 is arranged in the catheter 1, the membrane rupture mechanism 2 includes a guide part 22, the guide part 22 is used to guide the membrane rupture device to the membrane rupture hole 11, the guide part 22 includes a guide block 221, the guide block 221 is fixedly connected in the catheter 1, the guide block 221 can be set to be hollow to reduce the weight of the guide block 221, and the end of the guide block 221 close to the membrane rupture hole 11 is provided with a guide groove 222 The guide groove 222 is connected to the membrane rupture hole 11, and the membrane rupture hole 11 is coated with a developing mark, which is convenient for locating the membrane rupture hole. The membrane rupture device is inserted into the catheter 1 and moves toward the side of the balloon 33. After passing through the guide groove 222, the moving direction of the membrane rupture device is changed, so that the membrane rupture device can be quickly extended out of the membrane rupture hole 11, reducing the time wasted by the membrane rupture device to find the membrane rupture hole 11 in the catheter 1, thereby reducing the overall operation time. The membrane rupture device ruptures the connection between the main blood vessel stent and the branch blood vessel stent through the membrane rupture hole 11. The catheter 1 is provided with a fixing mechanism 3, which includes a support body 31 and a power unit 32. The support body 31 includes a balloon 33, which is fixedly connected to the outside of the catheter 1. The power unit 32 includes a trachea 34, and an inner balloon is fixedly connected to the membrane rupture hole 11. The trachea 34 passes through the guide block 221, and the trachea 34 is connected to the balloon 33 and the inner balloon. The trachea 34 is adapted to the guide groove 222, and the trachea 34 is adapted to the guide groove 222, so that when the membrane rupture device extends out of the membrane rupture hole 11, the air tube 34 is fixedly connected to the inner balloon 33. The tube 34 is embedded in the guide groove 222, which can reduce the impact of the shaking of the trachea 34 on the operation and increase the success rate and efficiency of the operation. The power unit 32 is used to connect to an external air source, which can be provided by an air pump. When the power unit 32 receives the external air source, the support body 31 expands so that the support body 31 is supported in the main blood vessel stent. In a natural state, the support body 31 contracts to separate from the main blood vessel stent, and the inner balloon bulges so that the gap between the membrane rupture device and the membrane rupture hole 11 is filled.

[0027] Reference Figure 2 and Figure 3 As shown, the guide groove 222 is in an arc shape, and the center of the circle where the arc surface of the guide groove 222 is located is the first center of the circle. The membrane rupture hole 11 includes an inner circular surface, and the inner circular surface is located on the inner wall surface of the catheter 1. The center of the circle where the inner circular surface is located is the second center of the circle. The first center of the circle is located on the inner wall surface of the catheter 1. The line between the first center of the circle and the second center of the circle is parallel to the central axis of the catheter 1, so that the connection between the inner circular surface and the arc surface of the guide groove 222 is perpendicular to each other. When the membrane rupture device is extended from the membrane rupture hole 11, the direction of the membrane rupture device is corrected, which is convenient for the user to adjust the angle required for the operation.

[0028] Reference Figure 1 , Figure 2As shown, an end portion 4 is provided at one end of the catheter 1, a through hole is provided on the end portion 4, a guide wire is provided at the through hole, the guide wire extends from both ends of the catheter 1, the guide wire first enters the blood vessel, and the catheter 1 can be conveniently delivered into the blood vessel under the guidance of the guide wire, and the support body 31 is located between the end portion 4 and the membrane rupture hole 11. The diameter of the end portion 4 gradually decreases from the end close to the catheter 1 to the end far away from the catheter 1, which can facilitate the catheter 1 to enter the blood vessel.

[0029] Reference Figure 2 As shown, the guide groove 222 is provided with a first protrusion and a second protrusion, and the second protrusion is located between the first protrusion and the membrane rupture hole 11. The membrane breaker changes its moving direction after passing through the first protrusion, and then extends out of the membrane rupture hole 11 after passing through the second protrusion, so that the contact range between the membrane breaker and the guide groove 222 is reduced, which is convenient for the membrane breaker to adjust its range of motion when working, so that the range of motion of the membrane breaker is not restricted. The first protrusion and the second protrusion are both arc-shaped, and the diameter of the first protrusion is larger than the diameter of the second protrusion, so that the membrane breaker will not abut against the second protrusion after passing through the first protrusion, thereby preventing the membrane breaker from being unable to move; the straight-line distance from the first protrusion to the second protrusion is larger than one-half of the inner diameter of the catheter 1, and smaller than two-thirds of the inner diameter of the catheter 1, thereby limiting the distance between the first protrusion and the second protrusion, further ensuring that the membrane breaker will not abut against the second protrusion after passing through the first protrusion, so that the membrane breaker can smoothly pass through the second protrusion.

[0030] The diameter of the first protrusion is smaller than half of the width of the guide groove 222, which reduces the contact range between the membrane breaker and the first protrusion and the second protrusion, and increases the movable range of the membrane breaker.

[0031] The second object of the present invention is to provide a membrane rupture balloon catheter, which comprises a catheter 1, on which a membrane rupture hole 11 is provided, and comprises the following steps:

[0032] The position adjustment step is to extend the catheter 1 into the blood vessel and adjust the position of the catheter 1 under development so that the membrane rupture hole 11 is opposite to the connection between the main blood vessel stent and the branch blood vessel stent; the positioning step is to extend the membrane rupture device from the membrane rupture hole 11 to the membrane rupture position along the guide groove 222, so that the membrane rupture device can be quickly extended from the membrane rupture hole 11 through the guide groove 222, thereby reducing the time for the membrane rupture device to find the position of the membrane rupture hole 11; the supporting step is to turn on the air pump, and the gas enters the balloon 33 through the trachea 34 to expand the balloon 33 and the inner balloon on the membrane rupture hole 11 until the outer surface of the balloon 33 fits with the main blood vessel stent, and the inner balloon fills the gap between the membrane rupture device and the membrane rupture hole 11, so that the balloon 33 is supported in the main blood vessel stent, so that the position of the catheter 1 is fixed; the membrane rupture step is to start the membrane rupture device; the ending step is to extract the gas from the balloon 33 through the trachea 34 to shrink the balloon 33 and take out the catheter 1.

[0033] Working principle: insert the catheter 1 into the main blood vessel stent, adjust the position and direction of the catheter 1, align the membrane rupture hole 11 with the connection between the main blood vessel stent and the branch blood vessel stent, and the air pump sends air through the trachea 34 to make the balloon 33 inflate. The balloon 33 is supported in the main blood vessel stent to prevent the movement of the catheter 1. The doctor uses the membrane rupture device to rupture the membrane at the connection between the main blood vessel stent and the branch blood vessel. After the membrane rupture is completed, the air pump inhales air through the trachea 34 to shrink the balloon 33, and the catheter 1 can be removed.

[0034] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A membrane rupture balloon catheter, comprising a catheter (1), wherein the catheter (1) is provided with a membrane rupture hole (11), characterized in that: The catheter (1) is provided with a membrane rupturing mechanism (2), the membrane rupturing mechanism (2) comprising a guide portion (22), the guide portion (22) being used to guide the membrane rupturing device to the membrane rupturing hole (11), the catheter (1) is provided with a fixing mechanism (3), the fixing mechanism (3) comprising a support body (31) and a power portion (32), the power portion (32) being used to connect to an external air source, when the power portion (32) receives the external air source, the support body (31) expands so that the support body (31) is supported in the main blood vessel stent, and in a natural state, the support body (31) contracts to be separated from the main blood vessel stent; The catheter (1) is provided with an end portion (4) at one end, the end portion (4) is provided with a through hole, a guide wire is provided at the through hole, the guide wire extends out of both ends of the catheter (1), and the support body (31) is located between the end portion (4) and the membrane-breaking hole (11); The guide portion (22) comprises a guide block (221), the guide block (221) is fixedly connected in the catheter (1), a guide groove (222) is formed at one end of the guide block (221) close to the film-breaking hole (11), the guide groove (222) is communicated with the film-breaking hole (11), and a developing mark is coated on the film-breaking hole (11); The guide groove (222) is in an arc shape, the center of the arc surface of the guide groove (222) is a first center, the membrane-breaking hole (11) includes an inner circular surface, the inner circular surface is located on the inner wall surface of the catheter (1), the center of the inner circular surface is a second center, the first center is located on the inner wall surface of the catheter (1), and the line between the first center and the second center is parallel to the central axis of the catheter (1); The guide groove (222) is provided with a first protrusion and a second protrusion, the second protrusion is located between the first protrusion and the membrane breaking hole (11), the first protrusion and the second protrusion are both arc-shaped, and the diameter of the first protrusion is greater than the diameter of the second protrusion; The straight-line distance from the first protrusion to the second protrusion is greater than one half of the inner diameter of the catheter (1) and less than two thirds of the inner diameter of the catheter (1).

2. A membrane rupture balloon catheter according to claim 1, characterized in that: The support body (31) includes a balloon (33), and the balloon (33) is fixedly connected to the outside of the catheter (1). The power unit (32) includes a trachea (34), and an inner balloon is fixedly connected to the membrane rupture hole (11). The trachea (34) is connected to the balloon (33), and the trachea (34) is adapted to the guide groove (222).

3. The membrane rupture balloon catheter according to claim 1, characterized in that: The diameter of the end portion (4) gradually decreases from an end close to the conduit (1) to an end away from the conduit (1).

4. The membrane rupture balloon catheter according to claim 1, characterized in that: The diameter of the first protrusion is smaller than half the width of the guide groove (222).

Images