Spacing-adjustable balloon catheter

Abstract

The utility model belongs to the technical field of balloon catheters, and particularly relates to a distance-adjustable balloon catheter which comprises a main balloon body, the inside of the main balloon body is communicated with a balloon communicating pipe, the inside of the balloon communicating pipe is communicated with a main balloon catheter, the side of the main balloon body is fixedly connected with a first buffer layer, and the side of the main balloon body is fixedly connected with a second buffer layer. The other side of the first buffer layer is fixedly connected with a buffer spring, the side of the buffer spring is elastically connected with a second buffer layer, the outer wall of the second buffer layer is fixedly connected with a distance-adjustable balloon body, and the interior of the distance-adjustable balloon body communicates with a distance-adjustable balloon catheter. The inner wall of the distance-adjustable balloon catheter is coated with a lubricating coating, and the distance-adjustable balloon body and the main balloon catheter form a sliding structure through the distance-adjustable balloon catheter and the lubricating coating. The distance between the balloons can be adjusted conveniently, and errors between the balloons and the dilation position can be reduced conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of balloon catheters, in particular to a balloon catheter with adjustable spacing. Background Art

[0002] Balloon dilatation catheters are used to perform percutaneous transluminal angioplasty of the ileal, femoral, iliocostal, iliac, and renal arteries and to treat obstructive dysfunction or congenital or acquired arteriovenous dialysis leaks.

[0003] In Chinese Patent 202122454908.8, the utility model discloses a dilatation catheter balloon with adjustable spacing, which relates to the technical field of dilatation catheter balloons, in order to solve the problem that the dilatation catheter balloons in the prior art can rarely adjust the distance according to the position of the narrow part of the upper digestive tract, and some of the adjustments also affect the airtightness of the dilatation catheter balloon, resulting in poor expansion effect of the balloon. Balloons are provided at both ends of the connecting catheter, the dilatation balloon tube includes a balloon, and catheter assemblies are provided at both ends of the balloon, and an expanded connection port is provided on the catheter assembly, a connecting metal sleeve is provided on the inner wall of the catheter assembly, and the catheter assembly and the connecting metal sleeve are connected by an adhesive, the connecting catheter includes an adjustable long tube, and a first metal tube is provided at both ends of the adjustable long tube, a first sealing hose is provided between the first metal tube and the adjustable long tube, and a contraction connection port is provided on the first sealing hose.

[0004] Most existing balloon catheters use a single balloon when in use. If many locations need to be expanded during treatment, this method will result in a longer treatment time. At the same time, when using existing multi-balloon catheters, the expansion position is first measured and then the balloon is installed according to the measured distance. However, there is a certain error in the distance within the blood vessel, which may cause the actual expansion position to be inaccurate.

[0005] Therefore, in order to solve the above problems, a balloon catheter with adjustable spacing is proposed. Utility Model Content

[0006] In order to make up for the shortcomings of the existing technology, the problem is solved that most of the existing balloon catheters use a single balloon. During treatment, if there are many positions that need to be expanded, the treatment time will be longer. At the same time, when using the existing multi-balloon catheter, the expansion position is first measured, and then the balloon is installed according to the measured distance. However, there is a certain error in the distance within the blood vessel, which may cause the actual expansion position to be inaccurate.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes an adjustable-spacing balloon catheter, comprising a main balloon body, the interior of the main balloon body is connected to a balloon connecting tube, and the interior of the balloon connecting tube is connected to the main balloon catheter, and a first buffer layer is fixedly connected to the side of the main balloon body, a buffer spring is fixedly connected to the other side of the first buffer layer, and a second buffer layer is elastically connected to the side of the buffer spring, and the outer wall of the second buffer layer is fixedly connected to the adjustable-spacing balloon body, the interior of the adjustable-spacing balloon body is connected to the adjustable-spacing balloon catheter, and the inner wall of the adjustable-spacing balloon catheter is coated with a lubricating coating.

[0008] Preferably, the adjustable-distance balloon body forms a sliding structure with the main balloon catheter through the adjustable-distance balloon catheter, the lubricating coating, and the main balloon catheter, and the inner diameter of the adjustable-distance balloon catheter is greater than the outer diameter of the main balloon catheter.

[0009] Preferably, the lubricating coating is evenly applied to the inner wall of the adjustable spacing balloon catheter, and the lubricating coating is made of medical lubricating PVP coating material.

[0010] Preferably, the adjustable-spacing balloon body and the adjustable-spacing balloon catheter form a communicating structure, and the size of the adjustable-spacing balloon body is the same as that of the main balloon body.

[0011] Preferably, the main balloon body forms a connecting structure with the main balloon catheter through a balloon connecting tube, and four balloon connecting tubes are arranged at equal angles with respect to the horizontal central axis of the main balloon catheter.

[0012] Preferably, the second buffer layer forms an elastic structure with the first buffer layer through a buffer spring, and the size of the second buffer layer is consistent with that of the first buffer layer.

[0013] The utility model is beneficial in that:

[0014] 1. The adjustable spacing balloon body forms a sliding structure with the main balloon catheter through the adjustable spacing balloon catheter, the lubricating coating and the main balloon catheter, and the inner diameter of the adjustable spacing balloon catheter is larger than the outer diameter of the main balloon catheter, the lubricating coating is evenly applied to the inner wall of the adjustable spacing balloon catheter, and the lubricating coating is made of medical lubricating PVP coating material, the adjustable spacing balloon body and the adjustable spacing balloon catheter form a connecting structure, and the size of the adjustable spacing balloon body is the same as that of the main balloon body, which is convenient for adjusting the distance between the adjustable spacing balloon body and the main balloon body, and reducing the error between the balloon and the expansion position;

[0015] 2. The main balloon body forms a connecting structure with the main balloon catheter through a balloon connecting tube, and four balloon connecting tubes are arranged at equal angles with respect to the horizontal central axis of the main balloon catheter, so as to fill the main balloon body without hindering the flow of body fluids. The second buffer layer forms an elastic structure with the first buffer layer through a buffer spring, and the size of the second buffer layer is consistent with that of the first buffer layer, so as to prevent the adjustable spacing balloon body from colliding with the main balloon body and causing damage to the balloon. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model as a whole viewed from the front;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model after being disassembled as a whole;

[0019] Figure 3 It is an enlarged structural schematic diagram of the main balloon body of the utility model in a filled state;

[0020] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 5 The utility model is a schematic diagram of the cross-sectional structure of the adjustable spacing balloon catheter.

[0022] In the figure: 1. main balloon body; 2. balloon connecting tube; 3. main balloon catheter; 4. first buffer layer; 5. buffer spring; 6. second buffer layer; 7. adjustable spacing balloon body; 8. adjustable spacing balloon catheter; 9. lubricating coating. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1

[0025] See also Figures 1 to 5 As shown, a balloon catheter with adjustable spacing includes a main balloon body 1, the interior of the main balloon body 1 is connected to a balloon connecting tube 2, and the interior of the balloon connecting tube 2 is connected to a main balloon catheter 3, and a first buffer layer 4 is fixedly connected to the side of the main balloon body 1, a buffer spring 5 is fixedly connected to the other side of the first buffer layer 4, and a second buffer layer 6 is elastically connected to the side of the buffer spring 5, and an adjustable spacing balloon body 7 is fixedly connected to the outer wall of the second buffer layer 6, the interior of the adjustable spacing balloon body 7 is connected to an adjustable spacing balloon catheter 8, and the inner wall of the adjustable spacing balloon catheter 8 is coated with a lubricating coating 9.

[0026] See also Figure 1 , Figure 2 , Figure 5 As shown, an adjustable-spacing balloon catheter, the adjustable-spacing balloon body 7 forms a sliding structure with the main balloon catheter 3 through the adjustable-spacing balloon catheter 8 and the lubricating coating 9, and the inner diameter of the adjustable-spacing balloon catheter 8 is larger than the outer diameter of the main balloon catheter 3, the lubricating coating 9 is evenly applied to the inner wall of the adjustable-spacing balloon catheter 8, and the lubricating coating 9 is made of a medical lubricating PVP coating material, the adjustable-spacing balloon body 7 and the adjustable-spacing balloon catheter 8 form a connecting structure, and the size of the adjustable-spacing balloon body 7 is the same as that of the main balloon body 1, and the adjustable-spacing balloon catheter 8 is nested in the main balloon catheter 3. Outer wall, since the inner wall of the adjustable spacing balloon catheter 8 is larger than the outer wall of the main balloon catheter 3, the adjustable spacing balloon catheter 8 can slide on the outer wall of the main balloon catheter 3, and a lubricating coating 9 is arranged between the adjustable spacing balloon catheter 8 and the main balloon catheter 3. The lubricating coating 9 is made of medical lubricating PVP coating material. The medical lubricating PVP coating material should not only have good hydrophilic lubricity, but also have good antibacterial function, which is beneficial to the movement of the adjustable spacing balloon catheter 8, and is convenient for adjusting the distance between the adjustable spacing balloon body 7 and the main balloon body 1, thereby reducing the error between the balloon and the expansion position.

[0027] See also Figure 3 As shown, a balloon catheter with adjustable spacing, the main balloon body 1 forms a connecting structure with the main balloon catheter 3 through the balloon connecting tube 2, and the balloon connecting tube 2 is provided with four equal angles about the horizontal central axis of the main balloon catheter 3. During use of the device, the main balloon body 1 is inflated. When the main balloon body 1 is filled, the balloon connecting tube 2 supports the main balloon body 1. There are gaps between adjacent balloon connecting tubes 2, and body fluids can flow through the gaps, avoiding the main balloon body 1 directly blocking the body fluid, so that the flow of body fluids is not hindered while the main balloon body 1 is filled.

[0028] See also Figure 4As shown, a balloon catheter with adjustable spacing is shown, in which the second buffer layer 6 forms an elastic structure with the first buffer layer 4 through the buffer spring 5, and the size of the second buffer layer 6 is consistent with the size of the first buffer layer 4. During the movement of the adjustable spacing balloon catheter 8, the second buffer layer 6 may contact the buffer spring 5. Under the elastic action of the buffer spring 5, it is easy to prevent the adjustable spacing balloon body 7 from colliding with the main balloon body 1, causing damage to the balloon.

[0029] Working principle: First, the adjustable spacing balloon catheter 8 is nested in the outer wall of the main balloon catheter 3. Since the inner wall of the adjustable spacing balloon catheter 8 is larger than the outer wall of the main balloon catheter 3, the adjustable spacing balloon catheter 8 can slide on the outer wall of the main balloon catheter 3. A lubricating coating 9 is provided between the adjustable spacing balloon catheter 8 and the main balloon catheter 3. The lubricating coating 9 is made of a medical lubricating PVP coating material. The medical lubricating PVP coating material should not only have good hydrophilic lubricity, but also have good antibacterial function, which is beneficial to the adjustable spacing balloon catheter 8. At the same time, during the movement of the adjustable spacing balloon catheter 8, the second buffer layer 6 may contact the buffer spring 5. Under the elastic action of the buffer spring 5, the adjustable spacing balloon body 7 can be prevented from colliding with the main balloon body 1 and causing damage. Then, during use, the device inflates the main balloon body 1. When the main balloon body 1 is filled, the balloon connecting tube 2 supports the main balloon body 1. There is a gap between adjacent balloon connecting tubes 2, and body fluids can flow through the gap, avoiding the main balloon body 1 directly blocking the body fluids.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A balloon catheter with adjustable spacing, characterized in that: The invention comprises a main balloon body (1), wherein the interior of the main balloon body (1) is connected to a balloon connecting tube (2), and the interior of the balloon connecting tube (2) is connected to a main balloon catheter (3), and a first buffer layer (4) is fixedly connected to the side of the main balloon body (1), a buffer spring (5) is fixedly connected to the other side of the first buffer layer (4), and a second buffer layer (6) is elastically connected to the side of the buffer spring (5), and an adjustable-spacing balloon body (7) is fixedly connected to the outer wall of the second buffer layer (6), the interior of the adjustable-spacing balloon body (7) is connected to an adjustable-spacing balloon catheter (8), and the inner wall of the adjustable-spacing balloon catheter (8) is coated with a lubricating coating (9).

2. The balloon catheter with adjustable spacing according to claim 1, characterized in that: The adjustable-distance balloon body (7) forms a sliding structure with the main balloon catheter (3) through the adjustable-distance balloon catheter (8) and the lubricating coating (9), and the inner diameter of the adjustable-distance balloon catheter (8) is greater than the outer diameter of the main balloon catheter (3).

3. The adjustable-distance balloon catheter according to claim 1, characterized in that: The lubricating coating (9) is evenly applied to the inner wall of the adjustable-distance balloon catheter (8), and the lubricating coating (9) is made of a medical lubricating PVP coating material.

4. The balloon catheter with adjustable spacing according to claim 1, characterized in that: The adjustable-distance balloon body (7) and the adjustable-distance balloon catheter (8) form a communicating structure, and the size of the adjustable-distance balloon body (7) is the same as that of the main balloon body (1).

5. The balloon catheter with adjustable spacing according to claim 1, characterized in that: The main balloon body (1) forms a communication structure with the main balloon catheter (3) through the balloon connecting tube (2), and four balloon connecting tubes (2) are arranged at equal angles with respect to the horizontal central axis of the main balloon catheter (3).

6. The adjustable-distance balloon catheter according to claim 1, characterized in that: The second buffer layer (6) forms an elastic structure with the first buffer layer (4) via the buffer spring (5), and the size of the second buffer layer (6) is consistent with the size of the first buffer layer (4).

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