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Device for ligaturing left atrial appendage and using method thereof

A technology of ligatures and nodes, applied in the fields of application, medical science, internal bone synthesis, etc., can solve the problems of unsuitable surgery and large surgical trauma.

Active Publication Date: 2007-10-24
LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, surgical trauma is very large for only resection or closure of the left atrial appendage, and surgery is not suitable.

Method used

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  • Device for ligaturing left atrial appendage and using method thereof
  • Device for ligaturing left atrial appendage and using method thereof
  • Device for ligaturing left atrial appendage and using method thereof

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Embodiment Construction

[0035] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Through the description of the preferred embodiments of the present invention, the advantages of the present invention can be seen and understood more clearly.

[0036] Fig. 1 shows the left atrial appendage ligation device according to the present invention, which mainly consists of a ligation thread 1, an outer sheath tube 2, an inner sheath tube 3, a guide wire 4 and a cap 5, wherein the ligation thread 1 is used to ligate the opening of the left atrial appendage site, the delivery system allows the ligature to pre-form a looper. There are many small knots 6 on the ligature 1, and the threaded buckle 9 can fix the clamping cap 5 on the outer sheath tube 2. Wherein the function of the threaded button 9 can also be replaced by threaded connection between the internal thread provided by the cap and the external thread at the front end of th...

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PUM

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Abstract

The invention discloses a device for ligaturing left auricle and the utilization method. the device comprises ligaturing line and conveying system: conveying system comprises internal and external sheath tube, the internal part is hollow; the length of internal sheath tube is little longer than that of external sheath tube, the internal sheath tube can be rested in long sheath tube; godet is set on internal sheath tube, and the front part is equipped with circular ring; hat is connected with front part of internal sheath tube. The utilization method comprises following steps: putting internal sheath tube into external sheath tube, keeping one piercing slot on hat is align to ligaturing line; threading the other end of ligaturing line by using godet through internal sheath tube to form loop; looping left auricle with formed loop, tightening ligaturing line to ligature left auricle. The invention is characterized by small injury area, low risk and prevention of stroke.

Description

technical field [0001] The invention relates to a device for ligating a cavity in the body and a method for using it, in particular to a device for ligating a left atrial appendage and a method for using it. Background technique [0002] Atrial fibrillation (abbreviated as atrial fibrillation or AF) is one of the most common clinical arrhythmias. Studies at home and abroad have shown that the overall incidence of atrial fibrillation in the population is 0.89%. Another 16%-21.5% of stroke (stroke, also known as stroke or cerebrovascular accident, is a group of acute cerebrovascular diseases with sudden onset and common features of focal neurological deficit.) Thrombosis caused by atrial fibrillation Stroke caused by shedding and non-valvular atrial fibrillation accounts for 50%-67.1% of cardiogenic stroke cases. The annual incidence of stroke in patients with atrial fibrillation is more than 4%, and the mortality and disability rate caused by stroke can reach about 50%. Th...

Claims

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Application Information

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IPC IPC(8): A61B17/12A61B17/94A61L17/00
Inventor 臧式先訾振军曾敏冯耀庭
Owner LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
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