Device for clamping tissue and application method thereof

Abstract

The invention belongs to the technical field of medical apparatus and instruments, and specifically relates to a device for clamping tissue and an application method thereof. The device includes a handle, an inner tube, an inner clamp, an outer tube seat, an outer tube, a casing pipe, an outer clamp and a releasing mechanism; the outer tube is connected to the casing pipe and the outer tube seat;the outer clamp is provided with an outer clamp seat and an outer clamping piece, and the clamping of the outer clamping piece is driven by the mouth of the casing pipe; the inner tube successively penetrates the outer tube seat, the outer tube, the casing pipe and the outer clamping piece and sleeved in the outer tube; the inner tube is connected to the inner clamp and the handle; the inner clampis provided with an inner clamp seat and an inner clamping piece; the inner clamp seat drives the outer clamp seat to move when contacting with the outer clamp seat, and a clamping tool is formed when the inner clamping piece contacts with the outer clamping piece; and the releasing mechanism sleeves the connecting part of the front end of the outer tube and the casing pipe and is used for locking or unlocking the connection of the outer tube and the casing pipe. The device and application method thereof can perform operation more conveniently, accurately and safely, so that requirements forthe operation of doctors can be reduced; and if the clamping positions of mitral valve leaflets are not good, repeated clamping can be performed, and then releasing can be operated.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a device for tissue clipping and a method for using the same. Background technique [0002] Valvular heart disease is one of the most common heart diseases in my country, mainly due to valvular damage caused by rheumatic fever; in recent years, with the development of aging population, valvular degeneration (including calcification and mucus degeneration, etc.) Damage is also increasing in our country. Mitral regurgitation is characterized by the retrograde flow of blood from the left ventricle of the heart to the left atrium through a malfunctioning mitral valve. During the normal systolic cycle, the mitral valve acts as a check valve, preventing backflow of oxygenated blood into the left atrium, so that oxygenated blood is pumped through the aortic valve to the aorta and then throughout the body. Mitral regurgitation can significantly reduce the heart's pum...

AI Technical Summary

Problems solved by technology

Mitral regurgitation can significantly reduce the heart's pumping efficiency, putting patients at risk of severe, progressive heart failure

In recent years, Abbott's Mitraclip, a valve clamping device for percutaneous venous intervention, has also appeared internationally, but its complicated operation has brought troubles to doctors

Patent literature such as the patent literature with the publication number CN107595435A discloses a valve clamp, including a first clamping part, a second clamping part and a connecting part, the first clamping part has at least two first clamping parts arm, the second clamping part has a corresponding number of second clamping arms, each of the first clamping arms and its corresponding second clamping arm can be combined into a set of clamps, but its operation is not Convenient, unstable release, affecting the success rate of surgery

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