An in-situ fenestration positioning device for a vascular covered stent

A stent-graft and positioning device technology, applied in the field of medical devices, can solve problems such as poor long-term effect, poor alignment, difficult operation, etc., to reduce technical requirements and experience dependence, and reduce requirements and experience. Dependence, the effect of reducing personal burden and social burden

CN106333766BActive Publication Date: 2018-04-10董红霖
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-04-10

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Abstract

The invention relates to a positioning device for in-situ windowing of an endovascular stent-graft. The positioning device comprises a push piece, a conveying sheath and a guiding wire, wherein a first through hole is formed in the push piece, a first magnetic piece is arranged at the first end of the push piece, and a guiding wire hole communicated with the first through hole is formed in the first magnetic piece; a second through hole is formed in the conveying sheath, a second magnetic piece is arranged at the first end of the conveying sheath, a third through hole communicated with the second through hole is formed in the second magnetic piece, and the first magnetic piece is connected with the second magnetic piece in a magnetic attracting manner; and the guiding wire is used for conveying the first magnetic piece and the second magnetic piece. The positioning device provided by the invention has the benefits as follows: after folding of the magnetic pieces, windowing is achieved through guided laser burning punching or a puncture needle method, the step of windowing is simplified, operating difficulty and risks are lowered, the operation time is saved, equipment customization is avoided, and moreover, the operation cost is lowered.
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Description

technical field

[0001] The invention relates to the technical field of medical devices, in particular to an in-situ fenestration positioning device for a vascular covered stent, in particular to an in-situ fenestration positioning device for a large and medium-sized artery stent-graft. Background technique

[0002] With the advent of an aging society and the high incidence of smoking, high blood pressure and other diseases, the occurrence of aortic aneurysm-like dilation or dissection is increasing. In the past, thoracotomy or laparotomy was necessary. , and has been widely recognized by the field of vascular surgery and interventional science. Stent-graft implantation is a very important means of treating large and medium-sized arteries at present. Although it is expensive, it is still widely used clinically. It is used in nearly 1 million cases worldwide every year, but it faces difficulties in the preservation of complex lesions, such as important branch arteries involvin...

Examples

Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present invention more clear, the following will give descriptions of specific embodiments in conjunction with the accompanying drawings of the present invention, but not as any limitation to the present invention.

[0043] see Figure 1 to Figure 5 , an in-situ fenestration positioning device for a vascular stent graft, comprising: a pusher 1, a first through hole 101 is provided on the pusher 1, a first magnetic attraction 2 is provided at the first end of the pusher 1, a first The magnetic attraction part 2 is provided with a guide wire hole 21 communicating with the first through hole 101, and the second end of the push part 1 is provided with a handle 103; the delivery sheath 3 is provided with a second through hole 31, and the delivery sheath The first end of 3 is provided with a second magnetic attraction 4, and the second magnetic attraction 4 is provided with a third through hole 41 communic...