Aortic arch covered stent graft and its delivery device

A covered stent and aortic arch technology, applied in the field of medical devices, can solve the problems of pre-fenestration covered stent, matching of branch vessels, affecting the strength of the covered film, etc.

Active Publication Date: 2022-03-01
BEIJING PERCUTEK THERAPEUTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a kind of aortic arch covered stent and its delivery device, in order to alleviate the existing arch covered stent in the prior art when treating aortic disease, the pre-opened fenestration covered stent is difficult to connect with the branch blood vessels of the human body. Matching can easily lead to vascular interruption, blood does not flow through the vascular branches before the fenestration of the surgical fenestration stent graft, membrane rupture leads to damage to the membrane tissue, and affects the technical problems of the membrane strength

Method used

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  • Aortic arch covered stent graft and its delivery device
  • Aortic arch covered stent graft and its delivery device
  • Aortic arch covered stent graft and its delivery device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This embodiment provides an aortic arch stent graft, refer to figure 1 and figure 2 , the aortic arch stent graft includes a skeleton 11, a main graft 1201, a seam graft, a first fixation ring 13, a second fixation ring 14 and a third fixation ring 15; specifically, the main graft 1201 is connected to the skeleton 11 Form the main body of the stent graft, the proximal end of the main membrane 1201 is provided with a first opening 121 for docking with the first branch blood vessel to supply blood, the first fixing ring 13 is fixed on the edge of the first opening 121, on the first fixing ring 13 or On the main body of the stent graft, a developing mark 16 is provided around the first fixing ring 13; on the main film 1201, a window is provided at the distal end of the first opening 121, and the patchwork film includes a window film 1202, The fenestration film 1202 covers the fenestration and is connected to the main film 1201 by suturing. The fenestration film 1202 is p...

Embodiment 2

[0065] This embodiment provides a delivery device for the aortic arch stent graft, which is used to deliver and release the aortic arch stent graft provided in any optional implementation manner in Embodiment 1 into the human body. stand.

[0066] The delivery device of the aortic arch stent-graft includes a delivery handle, a delivery outer tube and an alignment release assembly; specifically, refer to Figure 3 to Figure 12 , combined with figure 1 and figure 2 , the alignment release assembly includes an inner sheath 2, an outer sheath 3, a fixed outer tube 4, a first socket 5, a second socket 6, a first fixing member 7 and a second fixing member 8; wherein: the inner sheath The tube 2 passes through the outer sheath tube 3, the outer sheath tube 3 passes through the fixed outer tube 4, and the fixed outer tube 4 passes through the delivery outer tube (not shown); the rear end of the inner sheath tube 2, the rear end of the outer sheath tube 3 , the rear end of the fixe...

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Abstract

The invention provides an aortic arch stent graft and a delivery device thereof, which relate to the field of medical devices, including a skeleton, a main covering, a seam covering, and first to third fixing rings; the main covering is connected to the skeleton to form a covered stent The main body, the proximal end of the main coating is provided with a first opening, the first fixing ring is fixed on the edge of the first opening, and a development mark is set around the first fixing ring; a window is set at the far end of the first opening on the main coating, and the coating is stitched together It includes a fenestration film, the fenestration film covers the fenestration and is suture-connected to the main film, the fenestration film is provided with second and third openings, the second fixing ring is fixed on the edge of the second opening, and the third fixing ring is fixed On the edge of the third opening; the second and third fixing rings are connected with developing rings. The present invention alleviates the difficulty of matching the pre-opened fenestration stent with the branch blood vessels of the human body, which easily leads to blood vessel interruption, blood does not flow through the vascular branches before the fenestration stent is opened, and membrane rupture leads to damage to the covering tissue and affects the strength of the covering. The problem.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an aortic arch covered stent and a delivery device thereof. Background technique [0002] Aortic diseases such as aortic dissection and aortic aneurysm are a serious threat to human health. With the advent of my country's aging society, the incidence of chronic diseases such as hypertension and atherosclerosis has shown a significant increase trend, and the incidence of thoracic aortic aneurysm and aortic dissection has increased significantly, which is a great threat to the lives of patients; Especially for aortic dissection with a wide range of lesions and affecting the blood supply of the brain, spinal cord and multiple organs, the surgical trauma is large, the operation is complicated, the time is long, and the blood consumption is high. The incidence of surgical complications and surgical mortality are high. Reconstructing the blood supply of the aorta and its branch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/07A61F2/966
CPCA61F2/07A61F2/966A61F2002/075A61F2250/0098
Inventor 郑殿会陈聪刘颖
Owner BEIJING PERCUTEK THERAPEUTICS CO LTD
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