Aortic arch covered stent and conveying device thereof

A covered stent and aortic arch technology, applied in the field of medical devices, can solve problems such as branch blood vessel matching, blood vessel interruption, and covered tissue damage

Active Publication Date: 2021-11-30
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 ve

Method used

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  • Aortic arch covered stent and conveying device thereof
  • Aortic arch covered stent and conveying device thereof
  • Aortic arch covered stent and conveying device thereof

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 covered stent and a conveying device thereof, and relates to the field of medical instruments, the aortic arch covered stent comprises a skeleton, a main covering film, an abutted seam covering film, a first fixing ring, a second fixing ring and a third fixing ring; the main covering film is connected to the skeleton to form a covered stent body, a first opening is formed in the near end of the main covering film, the first fixing ring is fixed to the edge of the first opening, and developing marks are arranged around the first fixing ring; a window is formed in the far-end part of the first opening in the main covering film, the abutted seam covering film comprises a window covering film, the window covering film covers the window and is connected to the main covering film in a sewing mode, a second opening and a third opening are formed in the window covering film, a second fixing ring is fixed to the edge of the second opening, and a third fixing ring is fixed to the edge of the third opening; and the second fixing ring and the third fixing ring are connected with developing rings. The problems that a pre-windowing covered stent is difficult to match with branch blood vessels of a human body, blood vessel cutoff is easily caused, blood does not flow through blood vessel branches before windowing of an operation windowing covered stent, membrane rupture causes covered tissue damage, and the covering strength is affected are solved.

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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IPC IPC(8): A61F2/07A61F2/966
Inventor 郑殿会陈聪刘颖
Owner BEIJING PERCUTEK THERAPEUTICS CO LTD
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