Detachable micro-catheter with double-coating at the head end

A micro-catheter and double-coating technology, which is applied in the direction of catheters, coatings, and medical devices, can solve problems such as complex operations, simplify the treatment process, increase the rate of curative embolism, and reduce extubation-related complications.

Pending Publication Date: 2018-08-24
SHANGHAI CHANGHAI HOSPITAL
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  • 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 ...

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  • Detachable micro-catheter with double-coating at the head end

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0045] according to figure 1 A detachable microcatheter with a double-coated head end as shown includes a microcatheter main body 1, and a catheter adapter 2 connected to one end of the microcatheter main body 1. The catheter adapter 2 adopts a Luer connector, and the Luer connector is used for It is used to connect other medical equipment such as syringes, or catheters for inserting guide wires or injection liquids into the microcatheter main body 1; diameter increases, the microcatheter main body 1 is inserted into the distal end of the expanded diameter tube, so that the microcatheter main body 1 can be disconnected from the expanded diameter tube by pulling the microcatheter outside the body; the other end of the microcatheter main body 1 is also connected with A detachable microcatheter head end 3, the outer surface of the microcatheter h...

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Abstract

The invention relates to a detachable micro-catheter with double-coating at the head end. The detachable micro-catheter with double-coating at the head end comprises a microcatheter body, a catheter base connected at one end of the microcatheter body, and a detachable microcatheter head connected at the other end of the microcatheter body, the outer surface of the microcatheter head is coated withan expandable inner layer coating, and the inner layer coating is also tightly sealed and tightly coated with a variable loose outer layer coating. The detachable micro-catheter with double-coating at the head end has the beneficial effects that the curative embolization rate of the minimally invasive interventional treatment of the cerebral vascular malformation can be improved, the complications caused by the return flow of the liquid embolism agent and the bleeding due to embolism are reduced, the treatment process is simplified, and the economic burden is reduced.

Description

technical field [0001] The invention relates to the design of a medical microcatheter, in particular to a detachable microcatheter with a double-coated 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 th...

Claims

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Application Information

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IPC IPC(8): A61M25/00A61B17/12A61L29/08A61L29/14A61L29/18
CPCA61M25/0045A61B17/12109A61B17/12181A61B2017/1205A61L29/08A61L29/14A61L29/18A61M25/0074A61M2025/006A61M2205/02A61M2210/12A61M2210/005
Inventor 方亦斌王川川吴一娜诸德源李强黄清海许奕刘建民
Owner SHANGHAI CHANGHAI HOSPITAL
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