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Vena cava filter

A filter and vena cava technology, applied in the field of medical devices, can solve the problem that the recovery hook cannot take out the filter, etc., and achieve the effect of improving the recovery rate and reducing complications

Inactive Publication Date: 2017-08-11
贾伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, in view of the above, the present invention provides a vena cava filter, which solves the defect of the existing removable vena cava filter that the recovery hook cannot be smoothly taken out within the recovery period due to the thrombus interception or the filter being inclined to the wall.

Method used

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  • Vena cava filter

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Embodiment Construction

[0013] The implementation of the present invention will be described in detail below in conjunction with specific examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention.

[0014] Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art, and the reagents and products used are also commercially available. The sources, trade names and, where necessary, listing of constituents of reagents used are indicated the first time they appear.

[0015] Embodiments of the invention are:

[0016] refer to figure 1 , a vena cava filter, comprising 12 pillars 1 and retrievable hooks 2, the retrievable hooks 2 are covered with degradable protective caps 3, one end of each of the pillars 1 is connected to the retrievable hooks 2, The other free end is radially distributed around the recoverable hook 2...

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Abstract

The invention relates to the field of medical apparatuses, and provides a vena cava filter. The filter overcomes the defects that due to thrombus interception or filter inclination and adherence, a recycle hook of an existing withdrawable vena cava filter is wrapped, and the filter cannot be withdrawn smoothly in the recycle period. The vena cava filter comprises a plurality of supporting posts and a recyclable hook wrapped with a degradable protective cap, one end of each supporting post is connected to the recyclable hook, the free ends of the supporting post are outward distributed in a radial shape with the recyclable hook as the center, and barbs are arranged at the free ends of the supporting posts.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a vena cava filter. Background technique [0002] Currently, the incidences of deep venous thrombosis (deep venous thrombosis, DVT) and pulmonary thromboembolism (pulmonarythromboembolism, PE) are increasing day by day. As the most serious complication of DVT, PE has very high morbidity and mortality. According to epidemiological surveys in recent years, the annual incidence of PE in the United States alone is 750,000 to 900,000, and the annual death toll is 120,000 to 150,000. Pulmonary thromboembolism not only has a very high morbidity and mortality rate, but also has a sudden onset and rapid progression. Generally, patients with pulmonary thromboembolism die within the first hour of onset. Pulmonary thromboembolism also leads to chronic pulmonary hypertension, which seriously affects the lives of patients. quality. [0003] DVT of the lower extremities is the main cause o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/01
CPCA61F2/01A61F2220/0016
Inventor 贾伟
Owner 贾伟
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