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Built-in device for individualized branch stent type arch part reconstructed artificial blood vessel

An artificial blood vessel and built-in device technology, applied in the field of medical devices, can solve the problems of inability to accurately control the bleeding in the descending part of the operation field, high operative mortality and complication rates, spinal cord damage, etc. Uniform thickness and precise bleeding control

Pending Publication Date: 2019-03-12
李杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems that the existing total arch replacement surgery cannot accurately control the bleeding in the arch and descending part of the surgical field, the patient has a large amount of bleeding during the operation, and the long time of deep hypothermia circulatory arrest can easily cause spinal cord damage, etc., so that Surgical mortality and complications are high

Method used

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  • Built-in device for individualized branch stent type arch part reconstructed artificial blood vessel
  • Built-in device for individualized branch stent type arch part reconstructed artificial blood vessel
  • Built-in device for individualized branch stent type arch part reconstructed artificial blood vessel

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specific Embodiment approach 1

[0022] Specific implementation mode one: combine Figure 2 to Figure 6 This embodiment is described. This embodiment includes a hard arch 20. The hard arch 20 is an arc-shaped pipe with the same radius of curvature or a radius of curvature that gradually decreases from the proximal end to the distal end. The hard arch 20 is provided with a plurality of branch windows and annular indentations 24, and the rigid arch 20 is installed inside the arch aortic stent vessel 3 of the individualized branch stent-type arch reconstruction artificial blood vessel.

[0023] This embodiment can quickly realize the fast suture-free connection of the ascending aorta.

specific Embodiment approach 2

[0024] Specific implementation mode two: combination Figure 2 to Figure 4 Describe this embodiment, the front upper edge of the hard arch 20 of this embodiment is provided with a branch window 1 21, the upper edge of the end section of the hard arch 20 is provided with a branch window 2 22, the hard arch 20 The ventral side of the middle section is provided with a branch window 3 23; so set, the Y-shaped arch branch 6, branch stent blood vessel 5, and arch branch 4 7 of the inventive branch stent type arch reconstruction artificial blood vessel reserve their respective entrances in the aortic arch. The blood port ensures sufficient blood supply to all brachiocephalic arteries; the position of the branch window 22 is designed to match the origin of the left subclavian artery at the top of the arch under normal conditions, ensuring accurate endovascular treatment in situ and avoiding its Displacement and endoleak occurred; the first branch window 21 corresponds to the common ro...

specific Embodiment approach 3

[0025] Specific implementation mode three: combination Figure 2 to Figure 4 To illustrate this embodiment, the first branch window 21 and the third branch window 23 of this embodiment are both circular or elliptical openings, and the second branch window 22 is a semicircular hole with an open distal end. In this way, the branch window 1 is consistent with the shape of the root of the branch 6 of the Y-shaped arch, which is the common root of the innominate artery and the left common carotid artery, and the opening is slightly larger than the root of the branch 6 of the Y-shaped arch, so as to ensure sufficient blood supply to the two brachiocephalic arteries; The second branch window 22 is located at the distal end of the hard arch 20, corresponding to the root of the left subclavian artery. Under normal circumstances, the aortic arch will turn backwards after the left subclavian artery is sent out, and the individual variation is large, so the hard arch should not be too lon...

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Abstract

The invention discloses a built-in device for an individualized branch stent type arch part reconstructed artificial blood vessel and relates to an artificial blood vessel. The built-in device aims atsolving the problems of large bleeding amount, long deep low-temperature circulation stopping time, possible spinal cord damage and the like in an operation process of a patient due to the fact thatexisting full arch replacement operations cannot achieve precise control over bleeding of an arch part and a descending operation field, so that the operation death rate and the complication rate arehigh. The device comprises hard arch parts (20), wherein the hard arch parts (20) are arc-shaped pipelines identical in pipe diameter, and the curvature radii of the hard arch parts are identical or the curvature radii gradually decrease from a proximal end to a distal end; a plurality of branch windows and annular dents (24) are formed in the hard arch parts (20), and the hard arch parts (20) aremounted in an arch part aortic stent blood vessel section of the individualized branch stent type arch part reconstructed artificial blood vessel (3). The device is used for an aortic arch replacement operation.

Description

technical field [0001] The invention relates to a built-in device for an artificial blood vessel, in particular to a built-in device for an individualized branch stent-type arch reconstruction artificial blood vessel used in open aortic surgery, and belongs to the field of medical devices. Background technique [0002] Aortic dissection is a large vessel emergency that seriously threatens the safety of patients. Among them, acute type A dissection (Stanford type A), that is, aortic dissection involving the ascending and arches, is the most dangerous type, with sudden onset, rapid progression, and extremely high lethality. Without surgical treatment, the 24-hour mortality rate is close to 25%, the 48-hour mortality rate is close to 50%, and the 30-day mortality rate is as high as 90%. Surgical resection and replacement of the ascending and arch vessels of the lesion is an effective treatment. However, the operation of acute type A dissection is complex and requires high tec...

Claims

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Application Information

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IPC IPC(8): A61F2/07
CPCA61F2/064A61F2/07A61F2002/061
Inventor 李杰
Owner 李杰
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