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Sacculus expansion catheter for drug treatment

A technique for dilating catheters and balloons, which is applied to balloon catheters, dilators, stents, etc., can solve the problems of balloon dilation catheters that cannot well meet treatment requirements, non-intraoperative drug loss, and influence on treatment effects, etc. The effect of reducing the possibility of restenosis, reducing the cost of surgery, and reducing side effects

Active Publication Date: 2012-04-18
SHANGHAI VASOLUTIONS MEDTECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the drug is located on the surface of the balloon, the current drug therapy balloon dilatation catheter has problems such as non-operative drug loss and uneven drug delivery.
Moreover, for lesions that are continuous, long, or located in several adjacent sections of a blood vessel, the long balloon used will appear "banana-shaped" (that is, bend), which will affect the therapeutic effect
[0008] Therefore, the medical treatment balloon dilatation catheter of the prior art can not meet the treatment requirement well

Method used

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  • Sacculus expansion catheter for drug treatment
  • Sacculus expansion catheter for drug treatment
  • Sacculus expansion catheter for drug treatment

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Embodiment Construction

[0046] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Apparently, the following descriptions are only specific embodiments of the present invention, rather than limiting the present invention. Those skilled in the art can make any modifications and changes to the embodiments of the present invention within the scope of the present invention without any creative efforts.

[0047] For ease of description, the terms "distal end" and "proximal end" are used here, the end near the operating end (ie, the multi-lumen connector) is the proximal end, and the end far away from the operating end is the distal end.

[0048] image 3 It is a schematic diagram of the overall structure of a balloon dilatation catheter for drug therapy according to an embodiment of the present invention. Such as image 3 As shown, the drug therapy balloon dilatation catheter includes: a catheter 1 , two balloon bodies 2 , a blocking agent...

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Abstract

The invention provides a sacculus expansion catheter for drug treatment, which comprises a catheter and a plurality of sacculus bodies fixed on the catheter. The catheter adopts a multi-cavity catheter and comprises a guide wire cavity penetrating through the whole catheter, a sacculus expansion cavity and a drug loading cavity used for accommodating drugs; the sacculus expansion catheter is provided with at least two sacculus bodies which can be separated in expansion to form a closed blood vessel cavity between a blood vessel wall, the sacculus expansion cavity is respectively communicated with one or more corresponding sacculus body / bodies, and the expansion and contraction of the sacculus bodies are controlled through the sacculus expansion cavity; and the parts of the catheter between adjacent sacculus bodies are provided with an opening communicated with the drug loading cavity so that the drugs can be dissolved in the closed blood vessel cavity. Drug losses of the traditional sacculus expansion catheter for drug treatment can be overcome, the drugs can be dissolved in the blood of a patient to treat the pathological area, the narrow area of the blood vessel can be expanded effectively, the high-pressure effects of external drugs on the pathological blood vessel wall can be reduced, and potential adverse effects of the external drugs on the human body can also be avoided.

Description

technical field [0001] The present invention relates to a balloon dilation catheter, more particularly to a drug treatment balloon dilation catheter for treating vascular stenosis, which includes a catheter and a balloon body fixed to the catheter. Background technique [0002] Balloon dilatation catheter is a tool for endovascular angioplasty, which has been widely used in clinical medicine of percutaneous transluminal angioplasty and percutaneous transluminal angioplasty. Under the guidance of medical imaging equipment, the balloon dilation catheter is pushed to the stenotic part of the blood vessel through percutaneous puncture technology, and the balloon is expanded under strict monitoring, so that the stenotic part of the blood vessel is expanded, so as to achieve the purpose of improving blood circulation . However, due to the elastic retraction of dilated blood vessels, proliferation of blood vessel wall cells, and tearing of the intima, the balloon can only temporar...

Claims

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Application Information

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IPC IPC(8): A61M29/02A61M25/10A61F2/958
Inventor 孙芳华谢志永李孝秀卢惠娜张滢涛朱佳英常孟琪罗七一
Owner SHANGHAI VASOLUTIONS MEDTECH CO LTD
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