Indirect artificial valva outside vein

Abstract

An external indirect artificial valve for vein is composed of upper valve body, lower valve body and two side valve axles for connecting said upper valve body with said lower one. The both ends of the artificial valve have respectively the far-end and near-end pressing points to the wall of blood vessel, which are respectively fixed to the far end and near end of vein b suture.

Description

technical field [0001] The invention relates to a medical device, in particular to an extravenous indirect artificial valve for treating deep venous insufficiency of lower limbs. Background technique [0002] In the blood circulation of the whole body of the human body, the return of blood from the lower limbs to the heart against gravity is an important part of the whole blood circulation. There are two main reasons why the blood of the lower limbs can resist gravity and return smoothly. One is that the muscles of the lower legs contract and relax alternately, acting as a muscle pump to squeeze the venous blood wrapped in the muscles to the heart; the other is that in the veins of the entire lower limbs, Generally, there is a venous valve every 10 to 20 centimeters to prevent the backflow of blood. However, due to other reasons such as congenital valvular poor structure, thrombus blockage or long-term standing weight bearing, valve closure is insufficient. This kind of dis...

AI Technical Summary

Problems solved by technology

However, due to other reasons such as congenital valvular poor structure, thrombus blockage or long-term standing weight bearing, valve closure is insufficient. This kind of disease is called deep venous insufficiency of the lower extremities. daily life and work

However, at present, surgery is the first choice for this type of disease, but various treatment methods have not yet achieved satisfactory results.

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