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Abdominal aorta self-expanding trumpet flower protection umbrella device

An abdominal aorta and protective umbrella technology is applied in the field of medical devices to achieve the effects of convenient use, reduced surgical trauma, and good plasticity

Pending Publication Date: 2022-03-11
ZHONGSHAN HOSPITAL FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem of how to effectively capture the thrombus fragments from the superior mesenteric artery during the interventional surgery and reduce the risk of tissue ischemia and necrosis caused by embolism of small arteries at the distal end of the lower extremities

Method used

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  • Abdominal aorta self-expanding trumpet flower protection umbrella device
  • Abdominal aorta self-expanding trumpet flower protection umbrella device
  • Abdominal aorta self-expanding trumpet flower protection umbrella device

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Embodiment

[0027] At present, when clinical vascular surgeons use existing thrombectomy catheters and other instruments to intervene in the superior mesenteric artery to remove thrombus, the thrombus may be torn, fragmented and fall off. Causes small arterial embolism in the distal lower extremities, leading to the risk of tissue ischemia and necrosis.

[0028] An abdominal aorta self-expanding trumpet flower protection umbrella device of the present invention is as follows figure 1 As shown, it mainly includes (such as figure 2 ):

[0029] The outer sheath tube 1 has an outer diameter of about 5-6F and an inner diameter of about 4.5-5.5F;

[0030] Inner sheath 2, which can pass through a guide wire or a thin thrombectomy catheter 9, and the inner diameter can be adjusted according to needs; blood reflux prevention device 3;

[0031] Dense mesh net bag 11 and 8 net bag support rods 10; Net bag support rod 10 fixed points are umbrella tip fixed points 4;

[0032] The outer net ring 5...

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Abstract

The invention relates to a self-expanding trumpet flower protective umbrella device for aorta abdominalis, and belongs to the technical field of medical instruments. Comprising an outer sheath tube, an inner sheath tube and a protective umbrella, a hollow inner layer sheathing canal is arranged in the outer layer sheathing canal in a penetrating manner; a protective umbrella is arranged between the inner-layer sheathing canal and the outer-layer sheathing canal, the protective umbrella is in the shape of a cone with the bottom turned outwards, an umbrella tip of the conical protective umbrella is arranged on the side close to an operator, and the bottom of the protective umbrella is arranged on the side away from the operator; an outer net bag ring is arranged at the edge of the bottom of the protective umbrella; an artery wall anchoring part is arranged on the protective umbrella close to the outer side net bag ring, and an inner side net bag ring is arranged in the protective umbrella; the problem that the renal artery and the lower limb artery are embolized due to chippings falling caused by superior mesenteric artery thrombectomy operation can be solved, the arterial wall anchoring part at the head end of the trumpet-flower-shaped umbrella body can effectively grab the wall, and the problem that the protection umbrella is not firmly fixed due to flushing of blood flow in the artery is solved; the double-layer net bag ring can keep the plasticity of the net bag and prevent the protection umbrella from deforming.

Description

technical field [0001] The invention relates to an abdominal aorta self-expanding morning glory protective umbrella device, which belongs to the technical field of medical instruments. Background technique [0002] Superior mesenteric artery embolism or thrombosis is a relatively common clinical emergency. At present, thrombus removal in vascular surgery is prone to produce thrombus debris, which is transported through the abdominal aorta, embolized renal arteries, and small distal arteries of the lower extremities. The carotid artery supplies the brain tissue. When carotid artery stenting is performed on patients with carotid artery stenosis, serious adverse events such as stroke caused by debris falling off are considered [1]. There are relatively mature cerebral blood flow protection devices in clinical practice. However, the body tissues supplied by the small arteries of the lower extremities have not received enough attention because they will not cause serious disabli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/221
CPCA61B17/221A61B2017/22001A61B2017/22072A61B2017/2212A61B2017/22038
Inventor 韩同磊郭大乔符伟国唐骁司逸林长泼唐涵斐沈洋方超严栋孙秀丽蔡亮朱家琦
Owner ZHONGSHAN HOSPITAL FUDAN UNIV
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