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Chronic aortic dissection intima incision knife

An aortic dissection and chronic technology, applied in the field of medical devices, can solve the problems of difficulty in excising the intimal sheet, insufficient excision, and damage to the arterial wall, avoiding damage to the aortic wall, wide excision range, and large operating space. Effect

Active Publication Date: 2021-07-23
FUWAI HOSPITAL CHINESE ACAD OF MEDICAL SCI & PEKING UNION MEDICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When resecting the chronic dissection of the proximal descending thoracic aorta, medical scissors and scalpels are often used for resection; the proximal descending thoracic aorta has a small diameter, bends toward the distal end, and is located deep, which is limited by this One structure, it is usually difficult to use medical scissors or a scalpel to remove the intimal piece, and the resection is usually not enough; in the deeper position, due to poor exposure, there is also a risk of injury to the arterial wall and causing massive hemorrhage

Method used

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  • Chronic aortic dissection intima incision knife
  • Chronic aortic dissection intima incision knife
  • Chronic aortic dissection intima incision knife

Examples

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Embodiment

[0027] Such as Figure 1 to Figure 4 As shown: this embodiment provides a chronic aortic dissection endarterotomy knife, including a knife handle 1 and a blade 2; the knife handle 1 is rod-shaped, and the lower end of the knife handle 1 is provided with an upward depression The notch 3; the blade 2 is fixed to the notch 3, and the blade 21 of the blade 2 faces the lower end surface of the handle 1 and does not exceed the lower end surface of the handle 1.

[0028] The knife handle 1 can be made of medical stainless steel; the knife handle 1 can be in the shape of a straight rod, the cross section of the knife handle 1 can be circular or oval, and the diameter can be 12mm, for example, and its smooth structure can avoid injury to the aortic wall ; The length of the knife handle 1 can be determined according to needs, for example, it can be 80mm; figure 1 The direction shown shall prevail; the notch 3 is a missing piece on the handle 1 , that is, the notch 3 runs through the lo...

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Abstract

The invention relates to the field of medical instruments, and particularly discloses a chronic aortic dissection intima incision knife. The chronic aortic dissection intima incision knife comprises a knife handle and a blade; the knife handle is in a rod shape, and the lower end of the knife handle is provided with a notch portion sunken upwards; and the blade is fixed to the notch portion, and an edge portion of the blade faces the lower end face of the knife handle and does not exceed the lower end face of the knife handle. According to the invention, the chronic dissection intima can be fully excised conveniently, and meanwhile, is also in conducive to avoid hurt of the aorta wall, so that the operation safety is improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an endarterotomy knife for chronic aortic dissection. Background technique [0002] Chronic type A aortic dissection sometimes requires ascending aorta, total arch replacement, and elephant trunk stent (or soft elephant trunk, that is, artificial blood vessel) implantation; the implantation of elephant trunk stent enables two-stage thoracoabdominal aortic replacement. Simplified, anastomose from the distal end of the original elephant trunk stent to complete the replacement of the thoracoabdominal aorta. [0003] Aortic dissection enters the chronic stage, and the intima is stiff. For cases with narrow diameter of the true lumen of the descending thoracic aorta, the true lumen cannot be fully opened with the implantation of the elephant trunk stent, but the true lumen is further narrowed due to the implantation of the elephant trunk stent. ;Patients with a narrow true lumen usuall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/3205A61B17/3213A61B90/00
CPCA61B17/3205A61B17/3213A61B90/08A61B2090/0801A61B2017/00778
Inventor 郭宏伟刘红畅怡魏柯范舒雅刘创孙阳雪
Owner FUWAI HOSPITAL CHINESE ACAD OF MEDICAL SCI & PEKING UNION MEDICAL COLLEGE
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