vena cava filter

A filter and vena cava technology, applied in the field of medical devices, can solve the problems of large contact area between the vena cava filter and the blood vessel wall, damage to the blood vessel wall, poor stability, etc., to achieve high thrombus capture rate, avoid growth, and good stability. Effect

Active Publication Date: 2017-10-31
成都迈德克科技有限公司
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AI Technical Summary

Problems solved by technology

[0007] In view of this, an embodiment of the present invention provides a vena cava filter to solve the problems of large contact area between the vena cava filter and the vessel wall, low recovery rate, easy damage to the vessel wall, and poor stability, so as to ensure the use and recovery of the vena cava filter. Process reliability and safety

Method used

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] Such as Figure 1 to Figure 3 As shown, a vena cava filter 1 provided by an embodiment of the present invention can be temporarily or permanently placed in a blood vessel to capture thrombus and prevent pulmonary embolism. The vena cava filter 1 includes a blood vessel wall holder 11 for supporting the blood vessel wall and a thrombus filter 12 for capturing thrombus. The blood vessel wall holder 11 is provided with a fixing structure 13 for positioning and fixing its supporting position. With this arrangement, after the vena cava filter 1 is placed at a designated position in the blood ves...

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Abstract

The invention is applied to the technical field of medical apparatus and instruments and discloses a vena cava filter. The vena cava filter can be temporarily or permanently placed in blood vessels for capturing thrombus and preventing pulmonary artery embolism. The vena cava filter comprises a blood vessel wall fixer for supporting in the blood vessels and a thrombus filter for capturing the thrombus; a fixing structure for positioning and fixing a supporting position of the blood vessel wall fixer is arranged on the blood vessel wall fixer; the thrombus filter is connected onto the blood vessel wall fixer; a releasing / recovering device for being connected with a control machine is arranged on the thrombus filter and / or the blood vessel wall fixer. The vena cava filter provided by the invention has the advantages of small contact area between the vena cava filter and blood vessel walls, convenience in operation, high capturing rate of the thrombus and long recovery time; the reliability and the safety of vena cava filter use are improved.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, in particular to a vena cava filter. Background technique [0002] Pulmonary embolism (PE) has a high morbidity and mortality rate, which may lead to chronic pulmonary hypertension and seriously affect the quality of life of patients. Lower extremity deep vein thrombosis (deep vein thrombosis, DVT) is the main cause of pulmonary embolism, 60% to 70% of DVT will occur PE; meanwhile, 90% to 95% of pulmonary embolism originate from DVT. Due to the high morbidity, high mortality, and high disability rate of PE are highly correlated with DVT, anticoagulation therapy is currently considered to be an effective method for the treatment of DVT and prevention of PE; For severe complications and failure of anticoagulation, vena cava filter (VCF) is an effective method to prevent PE. The application of vena cava filter can not only effectively prevent the occurrence of pulmonary embolism, but a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/01
CPCA61F2/01A61F2/011A61F2002/016
Inventor 刘恒全张越琳
Owner 成都迈德克科技有限公司
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