Balloon catheter conveying device for intracranial angioplasty

A balloon catheter and delivery device technology, applied in the direction of stents, can solve the problems of increasing the difficulty of surgery, increasing the resistance of stent delivery, and the delivery of stents to lesion locations, so as to avoid cumbersome exchange operations, reduce the probability of complications, and simplify surgical operations Effect

Pending Publication Date: 2018-02-09
王子亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing balloon catheter still has the following problems: the tube body located at the distal end of the balloon is short, cannot be plastically deformed, cannot play a guiding role, and cannot accurately guide the balloon when encountering branch ves...

Method used

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  • Balloon catheter conveying device for intracranial angioplasty
  • Balloon catheter conveying device for intracranial angioplasty
  • Balloon catheter conveying device for intracranial angioplasty

Examples

Experimental program
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Embodiment Construction

[0023] Embodiment 1 of a balloon catheter delivery device for intracranial angioplasty Figure 1~2 As shown: a Y-shaped catheter adapter 1 is included, and a delivery catheter 2 is arranged on the catheter adapter. The delivery catheter has a delivery catheter lumen 10 for passing corresponding guide wires and stents. One side of the delivery catheter lumen 10 is provided with a bias lumen 11, the positive arm 8 of the catheter adapter communicates with the inner lumen 10 of the delivery catheter, and the side arm 7 of the catheter adapter communicates with the partial lumen 11. In this embodiment, the diameter of the outer lumen of the delivery catheter is 0.9 mm, which can be used for delivery of guide wires and stents. The distal end of the delivery catheter is provided with an expansion balloon 3, which is a semi-compliant balloon with a diameter of 4 mm and a length of 10 mm after it is fully inflated. The partial lumen 11 of the delivery catheter is used for filling / rele...

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Abstract

The invention relates to a balloon catheter conveying device for intracranial angioplasty. The device comprises a conveying catheter, and the conveying catheter is provided with a conveying catheter inner cavity used for enabling a corresponding guide wire and a stent to pass through; an inflatable balloon is arranged at the far end of the conveying catheter, and a guide pipe with the length of 8-20 mm is arranged at the end, away from the conveying catheter, of the inflatable balloon; the guide pipe is a plastic guide pipe or a pre-plastic guide pipe with a bent section, and the guide pipe isprovided with a guide pipe inner cavity which is communicated with the conveying catheter inner cavity and allows the guide wire and the stent to pass through. The balloon catheter conveying device which is used for intracranial angioplasty and capable of precisely guiding the balloon and the stent to a lesion position is provided.

Description

technical field [0001] The invention relates to a balloon catheter delivery device for intracranial angioplasty in the field of medical equipment. Background technique [0002] Ischemic stroke is one of the main causes of disability and death, 10%-15% of which is caused by intracranial atherosclerotic stenosis, and the Asian population may be as high as 33%-50%. [0003] The WASID trial showed that even with strict oral aspirin antithrombotic prophylaxis, the annual risk of recurrent stroke was still as high as 18%; the SAMPPRIS trial showed that the recurrent stroke rate within one month of intensive medical treatment was 5.8%, and the recurrent stroke rate within 32.8 months 15%; especially for those patients with recurrent symptoms of antithrombotic therapy or hypoperfusion, selective stenting and revascularization are necessary. As early as 1980, some scholars tried percutaneous angioplasty (PTA) to treat basilar artery stenosis. At present, regardless of whether the Ga...

Claims

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Application Information

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IPC IPC(8): A61F2/958A61F2/954
CPCA61F2/954A61F2/958A61F2002/9586
Inventor 王子亮李天晓许岗勤梁晓东
Owner 王子亮
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