Reducing type intracranial balloon dilatation catheter

Abstract

The utility model discloses a variable-diameter type intracranial balloon dilatation catheter, which relates to the technical field of medical instruments, and comprises a tail end tube, a balloon, a variable-diameter inner tube, a variable-diameter outer tube and a catheter seat, the far end of the balloon is fixedly connected with the outer surface of the tail end tube, the near ends of the variable-diameter inner tube and the variable-diameter outer tube are fixedly connected inside the catheter seat, and the variable-diameter inner tube and the variable-diameter outer tube are connected with the catheter seat. The diameter of the variable-diameter outer tube is sequentially increased from the far end to the near end to form various gradient specifications, the variable-diameter inner tube is coaxially sleeved with the variable-diameter outer tube, and the variable-diameter inner tube and the balloon form an integrated structure. The adjusting knob is connected to the near end of the variable-diameter inner tube, the variable-diameter inner tube can be driven to rotate by rotating the adjusting knob during use, the angle of the balloon can be adjusted conveniently and flexibly, the catheter can penetrate into a blood vessel more smoothly, the use efficiency of the catheter is improved, meanwhile, operation of a doctor is facilitated, risks in an operation are reduced, and the operation efficiency is improved. The success rate of an operation is improved, and the market competitiveness of a product is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a variable diameter intracranial balloon dilatation catheter. BACKGROUND

[0002] In the known technical field, interventional medical engineering is one of the important contributions of medicine to human civilization in the late 20th century, in the field of cerebrovascular treatment, interventional technology can treat ischemic stroke and hemorrhagic stroke, carotid artery stenosis, vertebral artery stenosis, cerebral artery stenosis, cerebral aneurysm, cerebral arteriovenous malformation, etc. Therefore, the balloon catheter plays an important role in the field of intracranial interventional medical engineering.

[0003] The current disclosed intracranial balloon dilatation catheter technical scheme, the pipe body is long equal diameter pipe body, in use, there is stress concentration, easy to bend and deform, and the distal pipe body is relatively thick in diameter compared with the small intracranial blood vessels, not easy to pass through the intracranial blood vessels to reach the lesion site, low use efficiency, high surgical risk.

[0004] The utility model with variable diameter whole catheter structure solves the problem of stress concentration and easy bending and deformation of the long catheter, increases the strength of the catheter, the first step and the second step with smaller diameter effectively reduce the friction of the catheter when passing through the intracranial blood vessels, making the catheter more smooth when passing into the blood vessels, thereby improving the use efficiency of the catheter. Through the research of the prior art, it is found that the use effect of the existing variable diameter intracranial balloon dilatation catheter needs to be improved. Therefore, the utility model provides a variable diameter intracranial balloon dilatation catheter. UTILITY MODEL CONTENT

[0005] TECHNICAL PROBLEM SOLVED

[0006] The utility model aims at making up for the shortage of prior art, and provides a variable diameter intracranial balloon dilatation catheter.

[0007] TECHNICAL SCHEME

[0008] To achieve the above object, the utility model provides the following technical scheme: A variable diameter intracranial balloon dilatation catheter, including end pipe, balloon, variable diameter inner tube, variable diameter outer tube and catheter seat, the distal end of balloon is fixedly connected with the outer surface of end pipe, the proximal end of variable diameter inner tube and variable diameter outer tube is fixedly connected in the inside of catheter seat, the pipe diameter of variable diameter outer tube increases gradually from the distal end to the proximal end, forms multiple gradient specifications, variable diameter inner tube is coaxially sleeved in the inside of variable diameter outer tube, the integrated structure of variable diameter inner tube and balloon, the proximal end of variable diameter inner tube is fixedly connected with adjusting knob, adjusting knob is movably sleeved in the inside of catheter seat, still be provided with a circle of scale on catheter seat, and the proximal end of variable diameter inner tube is connected with adjusting knob, when using, can drive variable diameter inner tube to rotate through the rotation of adjusting knob, and then the angle of balloon is conveniently and flexibly adjusted, and then the catheter can be more smoothly inserted into blood vessel, thereby improving the use efficiency of catheter, and simultaneously, the operation of doctor is convenient, reduces the risk in operation, improves the success rate of operation, improves the market competitiveness of product.

[0009] Preferably, the side of the adjusting knob is provided with an indication mark.

[0010] Preferably, the pipe diameter of the variable diameter inner tube increases gradually from the distal end to the proximal end, forming multiple gradient specifications.

[0011] Preferably, it further includes a handheld part, and the handheld part is fixedly connected with the catheter seat.

[0012] Preferably, it further includes a balloon protective sleeve, and the balloon protective sleeve is sleeved on the outer surface of the balloon.

[0013] Preferably, it further includes a balloon protective wire, and the balloon protective wire is inserted into the 2 / 3 position of the first step of the variable diameter inner tube from the inner cavity of the end pipe.

[0014] Beneficial effects:

[0015] Compared with the prior art, the variable diameter intracranial balloon dilatation catheter has the following beneficial effects:

[0016] The proximal end of the variable diameter inner tube is connected with the adjusting knob, when using, the variable diameter inner tube can be rotated through the rotation of the adjusting knob, and then the angle of the balloon is conveniently and flexibly adjusted, and then the catheter can be more smoothly inserted into the blood vessel, thereby improving the use efficiency of the catheter, and simultaneously, the operation of the doctor is convenient, the risk in operation is reduced, the success rate of the operation is improved, and the market competitiveness of the product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 The structure diagram of the present application is shown in the figure.

[0019] Figure 2 The structure diagram of the adjusting knob of the present application is shown in the figure.

[0020] Figure 3 The cross-sectional structure diagram of the adjusting knob of the present application is shown in the figure.

[0021] Figure 4 The connection structure diagram of the variable-diameter inner tube and the balloon of the present application is shown in the figure.

[0022] In the figure:

[0023] 1, end tube; 2, balloon; 3, variable-diameter inner tube; 4, variable-diameter outer tube; 5, catheter seat; 6, variable-diameter outer tube; 7, adjusting knob; 8, scale; 9, indicator; 10, balloon protective sleeve; 11, handheld part; 12, balloon protective wire. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] Please refer to Figures 1-4The utility model provides a technical scheme: a variable diameter intracranial balloon dilatation catheter, including end pipe 1, balloon 2, variable diameter inner tube 3, variable diameter outer tube 4 and catheter seat 5, the far end of balloon 2 is fixedly connected with the outer surface of end pipe 1, the proximal end of variable diameter inner tube 3 and variable diameter outer tube 4 is fixedly connected in the inside of catheter seat 5, the pipe diameter of variable diameter outer tube 6 increases gradually from the far end to the proximal end, forms multiple gradient specifications, variable diameter inner tube 3 is coaxially sleeved in the inside of variable diameter outer tube 4, variable diameter inner tube 3 and balloon 2 form an integral structure, the proximal end of variable diameter inner tube 3 is fixedly connected with adjusting knob 7, adjusting knob 7 is movably sleeved in the inside of catheter seat 5, still be provided with a circle of scale 8 on catheter seat 5, and the side of adjusting knob 7 is provided with indicating mark 9, and the proximal end of variable diameter inner tube 3 is connected with adjusting knob 7, when using, by rotating adjusting knob 7, variable diameter inner tube 3 can be driven to rotate, and then the angle of balloon 2 is conveniently and flexibly adjusted, and then the catheter can be more smoothly inserted into the blood vessel, thereby improving the use efficiency of the catheter, simultaneously, it is convenient for doctor operation, reduces the risk in operation, improves the success rate of operation, improves the market competitiveness of product.

[0026] The variable diameter inner tube 3 in the present application has a gradually increasing pipe diameter from the far end to the proximal end, forming multiple gradient specifications.

[0027] Please refer to Figure 1 Further comprising a handheld part 11, the handheld part 11 is fixedly connected with the catheter seat 5, further comprising a balloon protective sleeve 10, the balloon protective sleeve 10 is sleeved on the outer surface of the balloon 2, and further comprising a balloon protective wire 12, the balloon protective wire 12 is inserted into the 2 / 3 position of the first step of the variable diameter inner tube 3 from the inner cavity of the end pipe 1.

[0028] Working principle: the proximal end of the variable diameter inner tube 3 is connected with the adjusting knob 7, when using, by rotating the adjusting knob 7, the variable diameter inner tube 3 can be driven to rotate, and then the angle of the balloon 2 is conveniently and flexibly adjusted, and then the catheter can be more smoothly inserted into the blood vessel, thereby improving the use efficiency of the catheter, simultaneously, it is convenient for doctor operation, reduces the risk in operation, improves the success rate of operation, improves the market competitiveness of product.

[0029] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A variable diameter intracranial balloon dilatation catheter, comprising a terminal tube (1), a balloon (2), a variable diameter inner tube (3), a variable diameter outer tube (4) and a catheter seat (5), the distal end of the balloon (2) is fixedly connected with the outer surface of the terminal tube (1), the proximal end of the variable diameter inner tube (3) and the variable diameter outer tube (4) is fixedly connected inside the catheter seat (5), the tube diameter of the variable diameter outer tube (4) increases from the distal end to the proximal end in turn, forming multiple gradient specifications, the variable diameter inner tube (3) is coaxially sleeved inside the variable diameter outer tube (4), and the variable diameter inner tube (3) and the balloon (2) form an integrated structure, characterized in that: The proximal end of the variable inner tube (3) is fixedly connected with an adjusting knob (7), the adjusting knob (7) is movably sleeved in the inside of the catheter seat (5), and a circle of scales (8) is further arranged on the catheter seat (5).

2. The variable diameter intracranial balloon dilation catheter of claim 1, wherein: One side of the adjusting knob (7) is provided with an indicating mark (9).

3. The variable diameter intracranial balloon dilation catheter of claim 1, wherein: The tube diameter of the variable inner tube (3) gradually increases from the distal end to the proximal end, forming multiple gradient specifications.

4. The variable diameter intracranial balloon dilation catheter of claim 1, wherein: Further comprising a handheld part (11), which is fixedly connected with the catheter seat (5).

5. The variable diameter intracranial balloon dilation catheter of claim 1, wherein: Further comprising a balloon protection sleeve (10), which is sleeved on the outer surface of the balloon (2).

6. The variable diameter intracranial balloon dilation catheter of claim 1, wherein: Further comprising a balloon protection wire (12), which is inserted from the inner cavity of the terminal tube (1) to the 2 / 3 position of the first step of the variable inner tube (3). Further comprising a handheld part (11), which is fixedly connected with the catheter seat (5). Further comprising a balloon protection sleeve (10), which is sleeved on the outer surface of the balloon (2). Further comprising a balloon protection wire (12), which is inserted from the inner cavity of the terminal tube (1) to the 2 / 3 position of the first step of the variable inner tube (3).

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