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Left auricle ligation device

A technique for ligating wire and wire knot, applied in the field of medical devices, can solve the problems of poor patient compliance, pericardial tamponade, immature occlusion device, etc., and achieve the effect of firm fixation, reliable effect and remarkable effect.

Active Publication Date: 2013-12-25
徐州亚太科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(3) Poor patient compliance: 38% of the patients stopped the drug on their own due to long-term monitoring of INR; another part of the patients had to interrupt warfarin therapy due to trauma, surgery and other reasons, and the incidence of stroke during drug withdrawal was as high as 50%
Although the occlusion technique is less traumatic and the operation is relatively simple and easy, it also has many disadvantages. For example, the current occlusion device is not mature, and complications such as instrument embolism and pericardial tamponade are prone to occur, and there is a possibility of Residual shunt phenomenon appears, which affects the treatment effect

Method used

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the drawings and descriptions illustrate preferred embodiments by way of example only and should not be construed as limiting the scope of the present invention, which is limited only by the claims.

[0031] 1. Structure Description

[0032] see figure 1 , The left atrial appendage ligation device of the present invention is composed of an outer sheath 5 , an inner sheath 6 , a push rod 9 , a lock sleeve 2 and a ligature 1 . The proximal end 7 of the outer sheath is equipped with an externally threaded Luer connector, and the catheter at the distal end 4 has a tapered end, which forms a tight fit with the inner sheath; the proximal end 8 of the inner sheath is connected to an internally threaded Luer connector, and the distal end 3 It is in a tip configuration, the inner sheath tube 6 is installed inside the outer sheath tube 5, a...

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Abstract

The invention provides a left auricle ligation device which comprises an outer sheath tube, an inner sheath tube, a push rod, a lock sleeve and a ligature. The ligature is in the shape of a 'jade pendant', a line knot is tied every section, the ligature penetrates the lock sleeve, and a circular ring is formed at one end of the lock sleeve. The left auricle ligation device is used for firmly and reliably ligating a left auricle without opening a chest, and blood flow is completely blocked.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a left atrial appendage ligation device. Background technique [0002] Dislodged blood clots due to atrial fibrillation (AF) are one of the leading causes of stroke. The incidence of cerebral embolism in patients with non-valvular atrial fibrillation is 5 times that of normal people, while the incidence of cerebral embolism in patients with chronic valvular atrial fibrillation is 17 times that of normal people. Oral anticoagulant therapy is an important part of the treatment of atrial fibrillation. Guidelines recommend long-term oral warfarin anticoagulation for patients with non-isolated AF. However, due to the need to monitor the International Normalized Ratio (INR), warfarin has a narrow therapeutic window and poor patient compliance, so its clinical application is limited. The left atrial appendage is a predilection site for cardiogenic thrombus, and 60% of pat...

Claims

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Application Information

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IPC IPC(8): A61B17/12
Inventor 刘文修吴言革吴俊龙
Owner 徐州亚太科技有限公司
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