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Removable recyclable cavity venous thrombosis filter

A venous thrombosis and recovery cavity technology, applied to the filter in the blood vessel and other directions, can solve the problems of short implantation time of the lantern structure and high recovery risk of the conical structure, and achieve the prevention of unsightly phenomenon, the long recovery period, and the removal of small damage effect

Pending Publication Date: 2020-03-20
SHANGHAI HOPE MEDICAL DEVICES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the lantern-type structure has too short implantation time and the conical structure can only be retrieved from the jugular vein with high risk, the present invention provides a detachable retrievable vena cava thrombus filter, which is lantern-type when implanted. Closed structure, when the product is recycled, one end of the product can be disassembled outside the body so that one end of the product becomes a conical open structure, so that the product has the characteristics of a lantern-shaped structure with good balance and a long conical implantation time

Method used

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  • Removable recyclable cavity venous thrombosis filter
  • Removable recyclable cavity venous thrombosis filter
  • Removable recyclable cavity venous thrombosis filter

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Embodiment Construction

[0029] Below according to accompanying drawing, the present invention will be further described:

[0030] Such as figure 1 As shown, the present invention is made up of fixing nut 1, fixing bolt 2, bracket main body 3, dismounting guide wire 4, recovery hose 5, catcher 6.

[0031] Such as Figure 4 As shown, the bracket main body 3 is composed of a front support rod 31, a balance rod 32, a rear support rod 33, and a connecting pipe 34. Each bracket main body 3 is processed with 3 to 12 front support rods 31, a balance rod 32, and a rear support rod. Bar 33 quantity is equal to front end support bar 31; Each front end support bar 31, balance bar 32, rear end support bar 33 are 360 ​​degree equidistant arrangement; The end support rod 33 and the connecting pipe 34 form a closed structure.

[0032] Such as Figure 6 As shown, the disassembly guide wire 4 is composed of a front connecting wire 41, a telescopic spring 42, a middle connecting wire 43, a limit spring 44, and a re...

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Abstract

The invention describes a removable recyclable cavity venous thrombosis filter consisting of a fixing nut, a fixing bolt, a stent main body, a disassembly guide wire, a recycling hose and a catcher. The cavity venous thrombosis filter is a lantern-type closed structure with a balance bar at the time of implantation. When the product is recycled, one end of the stent main body of the product can bedisassembled in vitro to turn the stent main body of the product into a conical open structure, so that the product has a lantern structure and good balance, is not liable to tilt, has no risk of puncture and has the characteristics that the conical structure has long implantation time and damage is small. In addition to tilt resistance, anti-puncture structure and prolonged implantation time ina patient body of the cavity venous thrombosis filter, the cavity venous thrombosis filter can also be recovered from the femoral vein of a patient after implantation, thereby reducing the risk of surgical operation, and preventing unsightly phenomenon that the neck wound of the patient form scars after healed.

Description

technical field [0001] The invention relates to a cardiovascular system medical device, in particular to a recoverable vena cava thrombus filter which can filter free thrombus in the vena cava system and prevent pulmonary embolism. Background technique [0002] According to the survey, among the recyclable products of the same kind on the market, there are mainly two types of vena cava filters, one is a lantern-type closed structure, and the other is a conical open structure. The lantern structure is punctured and implanted from the patient's femoral vein during use, and then recovered from the patient's femoral vein when it is recovered. This structure is punctured from the femoral vein, which is less harmful to the patient, and there is a balance bar in the blood vessel that is not easy to tilt, but This kind of lantern-like sealing structure is not easy to peel off after being covered by the intima of the blood vessel, so the implantation time in the patient's body is too...

Claims

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Application Information

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IPC IPC(8): A61F2/01
CPCA61F2/01A61F2002/016
Inventor 李虎黄兴龙丁峰顾浩栋
Owner SHANGHAI HOPE MEDICAL DEVICES CO LTD
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