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Puncture auxiliary device

A technology for auxiliary devices and puncture parts, applied in the field of medical devices, can solve the problems of sealing failure, difficult adjustment, tearing of silicon gaskets, etc., and achieve the effects of reducing tearing, reducing friction, and small driving force

Pending Publication Date: 2022-04-22
HANGZHOU VALGEN MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, there is a large force between the instrument and the silicon gasket, and the resistance between the two relative motions is relatively large, and the corresponding driving force required will be relatively large, which is difficult to adjust; on the other hand, the instrument and the silicon gasket The relative movement between the gaskets will cause the two to rub repeatedly, which may cause the silicon gasket to tear and the seal to fail

Method used

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Embodiment Construction

[0054] In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings.

[0055] It should be understood that expressions such as "comprising" and "may include" that may be used in this application indicate the existence of disclosed functions, operations or constituent elements, and do not limit one or more additional functions, operation and components. In the present disclosure, terms such as "comprising" and / or "having" may be interpreted as indicating specific characteristics, numbers, operations, constituent elements, components, or combinations thereof, but shall not be interpreted as representing one or more other characteristics. , number, operation, constituent elements, components or the existence or possibility of addition of their combinations are excluded.

[0056] In addition, in this application, the expression "and / or" includes a...

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Abstract

The invention provides a puncture assisting device which is used for assisting a diagnosis and treatment instrument in puncturing tissue. The puncture auxiliary device comprises a sealing component, a flexible bag body and a puncture component, the near end of the flexible bag body is connected with the sealing component in a sealed mode, the far end of the flexible bag body is connected with the puncture component in a sealed mode, and the sealing component, the flexible bag body and the puncture component are axially communicated and form a channel; the diagnosis and treatment instrument is movably inserted into the channel; the sealing component is in interference fit with the part, inserted into the channel, of the diagnosis and treatment instrument, and the flexible bag body and the puncture component are both in clearance fit with the part, inserted into the channel, of the diagnosis and treatment instrument. The puncture auxiliary device is labor-saving and convenient to adjust, and the risk of sealing failure can be reduced.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to a puncture assisting device. Background technique [0002] The mitral valve is a one-way "valve" between the left atrium (abbreviation: LA) and the left ventricle (abbreviation: LV), which can ensure blood flow from the left atrium to the left ventricle. A normal, healthy mitral valve has multiple chordae. The leaflets of the mitral valve are divided into anterior leaflet and posterior leaflet. When the left ventricle is in a diastolic state, the two are in an open state, and blood flows from the left atrium to the left ventricle; when the left ventricle is in a systolic state, the chordae are stretched to ensure The valve leaflets will not be rushed to the atrium side by the blood flow, and the front and rear leaflets are well closed, thereby ensuring that blood flows from the left ventricle to the aorta through the aortic valve (abbreviation: AV). If the cho...

Claims

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Application Information

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IPC IPC(8): A61B17/34A61B17/00
CPCA61B17/3421A61B17/00234A61B17/3423A61B17/3415A61B2017/3419A61B2017/3445A61B2017/00243A61B2017/3425A61B2017/3454
Inventor 张庭超张伟伟
Owner HANGZHOU VALGEN MEDTECH CO LTD
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