Continuous acting vascular clamp

Abstract

The invention discloses a continuous acting vascular clamp. The continuous acting vascular clamp comprises an upper clamp body, a flexible body and a lower clamp body. The continuous acting vascular clamp can be freely opened or closed and can be opened to reach an included angle of 90 degrees, thus the vessel is easily aligned, and the vessel is particularly conveniently clamped and closed during minimally invasive surgery; two ends are fixed and parallel during clamping, so that the clamping force can be parallel and balanced; the clamp can be reversely buckled to be self-locked, and therefore, the vessel can be firmly closed; the clamp can be used in match with an automatic continuous acting plastic clamp, the a plurality of vessels can be continuously clamped to be closed; the clamp is prepared from an absorbable material or non-absorbable polymer synthesis material which can be implanted into a human body for a long term; due to be prepared from a biodegradable material which can be implanted into the human body for a long term, the clamp can be completely absorbed by the human body without residue after permanent vascular embolization, and therefore, the tissue adhesion or obstruction possibly caused by non-absorbable vascular clamp can be effectively avoided.

Description

Technical field [0001] The invention relates to a medical device that can be implanted in the human body for a long time, in particular to a continuous hair vessel clip that can be used to close blood vessels in surgery and minimally invasive surgery and be implanted in the body. Background technique [0002] In the current international and domestic markets, in surgery and minimally invasive surgery, the most commonly used type of ligation and closure of blood vessels and other vessels is titanium clamps, which are U-shaped titanium clamps. During the operation, the titanium clamp is conducted through the handle of the titanium clamp to close the jaws of the titanium clamp, and the opened titanium clamp is clamped and closed, thereby closing the blood vessel ligation. This kind of titanium clip is widely used clinically, and can realize continuous clip application. However, this kind of titanium clip has three shortcomings: First, the U-shaped titanium clip made of metal titani...

AI Technical Summary

Problems solved by technology

However, this titanium clip has three disadvantages: first, this U-shaped titanium clip made of metal titanium wire cannot be opened or closed freely, and it cannot be opened to an angle of 90 degrees, which is not easy to align with blood vessels, resulting in clipping closure Inconvenient blood vessels

Because the closing force point of the titanium clip is at the root, the force transmitted through the root to the front end will inevitably cause the front end and the root to close unparallel, and the force will be uneven, so that the blood vessels will not be completely ligated and closed, and bleeding will occur

Even under the action of the elastic recovery force of the clamped tissue, slippage occurs, which not only fails to close the blood vessel, but also easily slips into the body and becomes a foreign body, which easily causes tissue adhesion and obstruction in some important blood vessels and nerves.

Third, this kind of ligation clip is a titanium clip made of metal titanium wire, which is permanently left in the human body. The titanium clip is not only soft, inflexible, insulating, and heat-insulating in the human body, but also cannot be absorbed by the human body. Opaque, affecting postoperative X-ray, CT or MRI scans

This kind of biological clip has four disadvantages: first, this closed U-shaped biological clip is closed and formed in advance, and the blood vessel is tightly closed by the elastic opening of the plastic.

Cannot be opened or closed freely, especially not opened to a 90-degree angle, it is not easy to align the blood vessel, making it inconvenient to clamp and close the blood vessel

Second, this ligation clip is pre-closed and shaped, and when the blood vessel is closed, the blood vessel tissue is squeezed outward, sometimes resulting in weak closure or even slippage

Thirdly, this kind of ligation clip is closed and shaped in advance, and the force at the end also comes from the root, and there is also a non-parallel closing and unbalanced force, so that the blood vessel is not completely ligated and closed, and bleeding occurs

Fourth, and more importantly, due t

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