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Filter device

A filter and filter rib technology, applied in the field of medical devices, can solve the problems of occlusion and the inability to remove the filter, and achieve the effect of avoiding secondary surgery

Active Publication Date: 2017-09-19
SHANGHAI BLUEVASCULAR MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a filter device to solve the problems of vena cava occlusion caused by long-term implantation of permanent filter devices in the prior art, long-term immune rejection, secondary surgery caused by recyclable filters, and inability to take out the filter. one or more of

Method used

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Experimental program
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Effect test

Embodiment 1

[0047] figure 1 Shown is the front view of the filter device of Embodiment 1 of the present invention, figure 2 Shown is figure 1 Top view of the filter unit shown.

[0048] refer to Figure 1~2 , the filter device 1000 includes a restriction member 1100, a filter member 1200 and a support member 1300, and the restriction member 1200, the filter member 1200 and the support member 1300 are all made of biodegradable materials; wherein: the support member 1300 and the filter The component 1200 is coaxially arranged and connected to the filter component 1200 to structurally support the filter component 1200; the constraining component 1100 is constrained to one end of the filter component 1200 so that one end of the filter component 1200 is closed to capture thrombus, and the constraint The time for the component 1100 to complete degradation is shorter than the time for the filter component 1200 and the support component 1300 to complete degradation. Here, the degradation tim...

Embodiment 2

[0067] Figure 5 Shown is a three-dimensional schematic view of the filter device of Embodiment 2 of the present invention, Figure 6 Shown is Figure 5 Front view of the filter unit shown, Figure 7 Shown is Figure 6 Top view of the filter unit shown.

[0068] refer to Figure 5-7 , the filter device 2000 includes a constraint component 2100, a filter component 2200, a support component 2300 and a positioning component 2400, and the filter component 2200, the constraint component 2100 and the support component 2300 are all made of biodegradable materials; the support component 2300 Set coaxially with the filter component 220, and connect the filter component 2200 to structurally support the filter component 2200; the constraining component 2100 constrains the filter component 2200, so that at least one end of the filter component 2200 is closed to capture thrombus; the positioning component 2400 is connected to the support member 2300 or the filter member 2200 for posit...

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Abstract

The invention provides a filter device which comprises a filter component, a restraining component and a support component, wherein the filter component, the restraining component and the support component all are made of a biodegradable material; the restraining component is used for restraining the filter component; the support component is connected with the filter component and arranged coaxially with the filter component; and the time of completing degradation by the restraining component is shorter than that by the support component. The filter device is implanted in vivo through a minimally invasive surgery; and various components are made of the biodegradable material and can be automatically degraded in vivo until the components disappear in vivo after works are completed, so that the problems of vena cave obstruction and long-term immunological rejection due to the fact that a permanent filter device exists in vivo for a long period of time are solved, and the problems that a second operation is caused by a temporary filter device and a filter cannot be taken out are also solved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a filter device. Background technique [0002] Pulmonary thromboembolism (PE, Pulmonary Embolism, referred to as pulmonary embolism) refers to the case and clinical state caused by the impacted material (usually thrombus) entering the pulmonary artery and its branches, blocking the blood supply to the tissue, and its incidence rate ranks second in the world Three, second only to acute coronary syndrome and stroke, and its mortality rate is second only to tumors and acute myocardial infarction. Specifically, 10% of hospitalized patients died of PE in my country, and the fatality rate of PE was about 8.7%. In western countries, the number of new PE patients in the United States is about 250,000 per year, while the incidence of PE in Europe is higher than that in the United States. ICU studies have found that the incidence of deep vein thrombosis (DVT, Deep Venous Thro...

Claims

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Application Information

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IPC IPC(8): A61F2/01
CPCA61F2/01A61F2002/016A61F2002/018A61F2210/00A61F2220/0025
Inventor 李中华张琳琳韩建超祁勇翔丁双喜苗铮华
Owner SHANGHAI BLUEVASCULAR MEDTECH CO LTD
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