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Branched membrane-covered support conveying system and conveying method thereof

A stent-graft and delivery system technology, applied in the field of medical devices, can solve the problems of high mortality, large trauma, complicated treatment, etc., and achieve the effects of convenient use and simple structure

Active Publication Date: 2010-12-01
SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The treatment of these diseased branch arteries with traditional artificial blood vessel replacement is extremely complicated, the trauma is very large, and the mortality rate is extremely high, so it is more necessary to use minimally invasive methods for treatment

Method used

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  • Branched membrane-covered support conveying system and conveying method thereof
  • Branched membrane-covered support conveying system and conveying method thereof
  • Branched membrane-covered support conveying system and conveying method thereof

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Embodiment Construction

[0035] In order to better understand the present invention, further description will be made below in conjunction with preferred embodiments of the present invention.

[0036] see figure 1 and figure 2 The delivery system for branched stent-grafts of the present invention is provided with a branch-guiding component that pulls the stent-branches of the stent-graft, and the branch-guiding component is similar to the control guiding component that controls the main body of the stent. For simplicity of illustration, only the branch guidewire 2 connected to the stent branch 11 is shown.

[0037] From figure 2 It can be seen from the figure that the stent main body 8 of the stent-graft is bound by the main body coil 7, and the control guide wire 6 that controls the traction and release process of the stent main body 8 passes through the joints of each main body coil 7, so that the main body coil 7 and the control guide wire A detachable connection is formed between the wires 6 ...

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Abstract

The invention provides a branched membrane-covered support conveying system comprising a double-layer sheath tube for containing a membrane-covered support and a towing and releasing mechanism for towing and releasing the membrane-covered support from the sheath tube, wherein a support main body and a support branch of the membrane-covered support are movably and integrally arranged in the double-layer sheath tube after being bounded; the support main body is connected with a control guiding part and is towed and released by the control guiding part; and the support branch is towed by a branched guiding part and is connected with the control guiding part, thereby being released by the control guiding part. The invention also provides a method for conveying the branched membrane-covered support into an arterial vessel. The conveying system can effectively ensure that the membrane-covered support is smoothly and safely conveyed into the arterial vessel, and can accurately position the support main body according to the position of a pathological change, especially the position of the support branch, and after positioning, the conveying system can simultaneously or respectively and safely release the support main body and the support branch so that the membrane-covered support can be more widely applied to endovascular exclusions especially relating to branched arterial pathological changes.

Description

technical field [0001] The invention relates to a medical device, in particular to a delivery system for delivering a covered stent in vivo for treating arterial lesions, in particular to a branched covered stent delivery system with branch delivery and a delivery method thereof. Background technique [0002] Endovascular graft exclusion (EVGE) is a high-tech emerging in the 1990s. Compared with traditional treatment methods, the use of interventional techniques has the advantages of less trauma, fewer complications, and lower mortality. [0003] However, at present, endovascular exclusion is mainly suitable for lesions that do not involve branch arteries, and a considerable part of clinical aortic dilatation involves branch arteries. The branch arteries of these diseases are very complicated to be treated by traditional artificial blood vessel replacement, the trauma is very large, and the mortality rate is extremely high, so it is more necessary to adopt a minimally invasi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/84A61L31/10A61F2/06A61F2/07A61F2/954A61F2/966
CPCA61F2/07A61F2/954A61F2002/061A61F2/966A61F2002/065
Inventor 朱清罗七一黄定国高延彬景在平陆清声
Owner SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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