Easy-to-recycle safety temporary vena caval filter

Abstract

The invention belongs to the technical field of medical treatment and discloses an easy-to-recycle safety temporary vena caval filter, comprising a recycling guide wire, a filter mesh and a fixing olivary part; the recycling guide wire is fixedly connected with the filter mesh and is made from polylactide; the filter mesh is of diamond structure, and two ends of the filter mesh are very smooth; the filter mesh is at least 3.2 cm in diameter; the lower end of the recycling guide wire is connected with the fixing olivary part for fixing the guide wire. The easy-to-recycle safety temporary vena caval filter can be removed completely and is simple and easy to remove; the filter mesh never adheres to the venous wall, and the venous wall is rarely damaged during recycling; the easy-to-recycle safety temporary vena caval filter can be placed in a human body for at least 3 months, and the recycling window phase is long; the easy-to-recycle safety temporary vena caval filter never shifts towards to the heart; the easy-to-recycle safety temporary vena caval filter is safely applicable to use in superior vena cava and inferior vena cava; the easy-to-recycle safety temporary vena caval filter never enters a branch vein, is rarely broken, and can be removed with no need for operation under ray.

Description

technical field [0001] The invention belongs to the field of medical technology, in particular to an easy-to-recycle and safe temporary vena cava filter. Background technique [0002] Patients with venous thrombosis are prone to fatal pulmonary embolism. Placing a filter in the vena cava is currently the only effective means of preventing fatal pulmonary embolism. Safe vena cava filter. Long-term indwelling of the permanent filter in the human body is likely to induce thrombosis recurrence, filter displacement, puncture into adjacent organs or tissues (resulting in massive gastrointestinal bleeding, abdominal aortic inferior vena cava fistula, long-term low back pain), inferior vena cava obstruction, etc. Complications; Most of the recyclable filters have a short recyclable window, and the filter is firmly adhered to the vein wall, which leads to the failure of the filter recovery; although the conversion filter can be converted into a stent structure, there is a possibilit...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problem existing in the prior art is that the filters currently used clinically have many deficiencies, and there is no easy and safe vena cava filter to remove

Long-term indwelling of the permanent filter in the human body is likely to induce thrombosis recurrence, filter displacement, puncture into adjacent organs or tissues (resulting in massive gastrointestinal bleeding, abdominal aortic inferior vena cava fistula, long-term low back pain), inferior vena cava obstruction, etc. Complications; Most of the recyclable filters have a short recyclable window, and the filter is firmly adhered to the vein wall, which leads to the failure of the filter recovery; although the conversion filter can be converted into a stent structure, there is a possibility of conversion failure, and foreign objects are left in the body ;Currently clinically available temporary filters have not been certified by the US FDA and cannot be used for the superior vena cava, and the filters are extremely easy to shift and break

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