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Filter capable of being implanted into tube cavity

A technique of implanting tubes and filters, applied in the direction of filters in blood vessels, can solve the problems of aggravation, uneven spatial distribution, and increased resistance, and achieve the effects of low damage, long implantation period, and high success rate of recovery

Pending Publication Date: 2022-07-01
SHENZHEN KYD BIOMEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These conditions may lead to filter inclination or aggravation of the uneven spatial distribution of the filter rod in the venous lumen, which may eventually lead to the failure of the filter to be retrieved, the reduction of the filtering effect of the thrombus, and various complications.
[0007] In addition, the filter has more rods resulting in increased resistance when it is released from the sheath, and the delicacy of the release operation in the body cavity will make it difficult to use high force, further resulting in less controllability of the release operation

Method used

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  • Filter capable of being implanted into tube cavity
  • Filter capable of being implanted into tube cavity
  • Filter capable of being implanted into tube cavity

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Embodiment Construction

[0131] A type of intraluminal implant structure in the prior art includes a central portion with a central axis and a functional portion with an outer circumference formed by several rods extending outward from the central portion. Compression towards the central axis keeps the implant positioned within the lumen in which it is implanted. For a typical structure of this type of implant, reference can be made to the filter structure disclosed in WO2017186025A1 by the inventor of the present application, which is incorporated into this patent in its entirety. The aforementioned implant in a strongly compressed state has a small shape and volume and can be placed in a sheath and delivered in the human body cavity through the sheath. At the desired placement position, the operator operates to make the implantation. The body is released from the sheath, the aforementioned implant in a strongly compressed state expands and tends to a non-compressed state, and the rod of its function...

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Abstract

The invention relates to the technical field of implanted medical instruments, in particular to an intracavity implant structure, in particular to a vena cava filter, and particularly discloses the intracavity implant structure and the vena cava filter with the same. Comprising a central part with a central axis and a functional part which is composed of a plurality of rods extending outwards from the central part and is provided with a periphery, and by improving the arrangement, the structure and the shape of the rods forming the functional part, the implant has better effects such as neutrality and the like.

Description

technical field [0001] The present invention relates to the technical field of implanted medical devices, in particular to an intraluminal implant, in particular to a vena cava filter. Background technique [0002] Implanted medical devices refer to medical devices that can stay in the body for a short or long term to support and maintain life, and are potentially dangerous to the human body, whose safety and effectiveness must be strictly controlled. Expandable implantable medical devices such as vascular stents, vena cava filters, occluders, and ventricular volume reduction devices can be compressed to a very small volume and implanted into human cavities through interventional procedures. The compressed devices are released and expanded at the desired location in the body Afterwards, a therapeutic effect is achieved, such as dilation, support, occlusion, volume reduction of blood vessels or body cavities, or prevention of the circulation of thrombi in the blood. [0003]...

Claims

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Application Information

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IPC IPC(8): A61F2/01
CPCA61F2/0105A61F2/0103A61F2002/016
Inventor 赵向前陈奕龙
Owner SHENZHEN KYD BIOMEDICAL TECH CO LTD