Balloon microcatheter with detachable tip

A micro-catheter and balloon technology, applied in balloon-shaped catheters, catheters, medical science, etc., can solve problems such as complicated operations, and achieve the effects of reducing volume, increasing effective use space, and improving reliability

Pending Publication Date: 2018-12-07
SHANGHAI CHANGHAI HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and solve the

Method used

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  • Balloon microcatheter with detachable tip
  • Balloon microcatheter with detachable tip
  • Balloon microcatheter with detachable tip

Examples

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0042] according to Figure 1 to Figure 2The first embodiment of a detachable balloon microcatheter shown includes a microcatheter main body 1, one end of the microcatheter main body 1 communicates with a catheter adapter 2, and the other end of the microcatheter main body 1 is also connected with a Detachable microcatheter tip 3; the microcatheter main body 1 is coaxially provided with a sleeve 11, and the two ends of the sleeve 11 are respectively connected to the catheter adapter 2 and the inflatable balloon 3 on the microcatheter main body 1. The inflatable balloon 3 is an annular structure sleeved on the outer peripheral surface of the microcatheter main body 1 , and the annular structure is arranged near the other end of the microcatheter main body 1 . The inflatable balloon 3 is made of polyurethane, and the outer surfaces of the inflat...

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Abstract

The invention relates to a balloon microcatheter with a detachable tip. The balloon microcatheter comprises a microcatheter body, one end of the microcatheter body is communicated with a catheter base, and the other end of the microcatheter body is connected with the detachable microcatheter tip; a cannula is coaxially arranged outside the microcatheter body, and the two ends of the cannula are communicated with the catheter base and an inflatable balloon on the microcatheter body respectively. The balloon microcatheter has the advantages that the curative embolization rate of minimally invasive intervention treatment of cerebrovascular malformation can be increased, complications caused when a liquid emboliaztion agent flows back and hemorrhage related to incomplete embolization can be reduced, the treatment process is simplified, and the economic burden is relieved.

Description

technical field [0001] The invention relates to the design of a medical microcatheter, in particular to a detachable balloon microcatheter at the head end. Background technique [0002] Cerebral arteriovenous malformation (AVM) is a common congenital vascular disease in the brain. The treatment methods mainly include surgical resection, endovascular embolization and stereotactic radiotherapy. In recent years, with the advancement of embolic materials and techniques, the application of new liquid embolic agents (Onyx, Phil, etc., hereinafter referred to as "glue") has become an important method for the treatment of cerebral AVM through endovascular embolization. During the embolization process, a small amount of embolic agent usually needs to flow back to block the proximal blood supply artery, so as to ensure better diffusion of the subsequent injection to the target site. However, the regurgitated glue may cause multiple risks. One is that the regurgitation enters the bloo...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61B17/12A61L29/08A61L29/14A61L29/18
CPCA61M25/10A61B17/12109A61B17/12181A61B2017/1205A61L29/08A61L29/14A61L29/18A61M25/0045A61M25/0074A61M25/1025A61M2025/006A61M2205/02A61M2210/12A61M2210/005
Inventor 王川川方亦斌吴一娜诸德源李强黄清海许奕刘建民
Owner SHANGHAI CHANGHAI HOSPITAL
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