Catheter sheath and ventricular assisted circulation device

A circulatory device and ventricular assist technology, applied in catheters, medical science, hypodermic injection devices, etc., can solve problems such as catheters cannot be fixed, achieve the effects of improving clinical applicability, ensuring blood flow, and avoiding risk problems

Active Publication Date: 2017-08-22
CARDIOPOWER MEDTECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a catheter sheath and a ventricular assisted circulation device for its application, so as to solve the problem that the catheter used on the ventricular assisted circulation device in the prior art cannot be fixed in blood vessels, left atrium and right atrium

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  • Catheter sheath and ventricular assisted circulation device
  • Catheter sheath and ventricular assisted circulation device
  • Catheter sheath and ventricular assisted circulation device

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Embodiment Construction

[0045] In order to make the content of the present invention clearer and easier to understand, the following in conjunction with the description Figure 1-11 , to further illustrate the catheter sheath and ventricular assist circulatory device of the present invention. Of course, the present invention is not limited to this specific embodiment, and general replacements known to those skilled in the art are also covered within the protection scope of the present invention.

[0046] Secondly, the present invention is described in detail using schematic diagrams, but these schematic diagrams are only for the convenience of describing the examples of the present invention in detail, and should not be used as a limitation of the present invention. In the present application, the "distal end" refers to the end farther away from the operator, whereas the "near end" refers to the end closer to the operator.

[0047] First, seefigure 1 , which is a schematic diagram of an introducer s...

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Abstract

The invention provides a catheter sheath and a ventricular assisted circulation device. The catheter sheath comprises a catheter main body; the catheter main body is provided with a shape-restorable elastic part; the elastic part is made of a shape memory material and is in a non-linear shape. After the catheter sheath is arranged into a body, the elastic part can be closely attached onto an internal tissue of a vessel wall, a left atrium or a right atrium through the shape restoration of the elastic part, so that the fixing of the elastic part onto the internal tissue of the vessel wall, the left atrium or the right atrium is realized. The ventricular assisted circulation device provided by the invention comprises the catheter sheath; as the position after the catheter sheath is arranged into the body can be fixed, accurate positioning can be realized, so that the stability of blood flow is ensured, the problem of risk caused by unfixed position of an existing catheter is solved, and, the use safety of the ventricular assisted circulation device and the clinical application are improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a ventricle auxiliary circulation device for assisting heart blood circulation, in particular to a catheter sheath which can be placed into a human body and serve as a blood channel. Background technique [0002] Heart failure is the leading cause of death in patients with cardiovascular disease, and its 5-year survival rate is similar to that of malignant tumors. At present, the treatment of heart failure can be roughly divided into three categories, namely drug therapy, heart transplantation and mechanical assisted circulation. Among them, drug therapy is often effective for patients with mild and moderate heart failure, but it has little effect for patients with end-stage heart failure, and the expected mortality rate in 1 year and 5 years is close to 30% and 60%, respectively. Heart transplantation is the best way to treat end-stage heart failure, but it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/10A61M1/12A61M25/00
CPCA61M25/0043A61M25/0045A61M25/0108A61M2205/3327A61M2205/3331A61M2205/3368A61M2210/125A61M60/148A61M60/205A61M60/40
Inventor 扈聪卢飞易博罗七一陈晓丽
Owner CARDIOPOWER MEDTECH SHANGHAI CO LTD
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