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Automatically positioned left auricle block instrument

An automatic positioning and occluder technology, applied in the field of medical devices, can solve the problems of unreasonable combination, easy damage to the left atrial appendage, expensive residual cavity, etc., and achieves the effects of convenient manufacture, simple structure, and accelerated endothelialization.

Active Publication Date: 2006-07-12
孔祥清
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of unreasonable combination existing in the existing left atrial appendage occluder, easy damage to the left atrial appendage and easy occurrence of residual cavity at the opening of the left atrial appendage during fixation, and provide a reasonable structure, with disc The left atrial appendage occluder can be automatically positioned in the left atrial appendage with no surgical complications and is suitable for different sizes of left atrial appendages.

Method used

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  • Automatically positioned left auricle block instrument
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Embodiment Construction

[0021] The following structural drawings and embodiments further illustrate the present invention.

[0022] like figure 1 , 2 shown.

[0023] A left atrial appendage occluder capable of automatic positioning in the left atrial appendage is mainly composed of a nickel-titanium alloy wire support 1 , a polytetrafluoroethylene isolation membrane 3 , a transmission connection part 2 and a plug head 4 . Among them, the stent 1 is braided by nickel-titanium alloy wire, the surface is a mesh structure, and the interior is a hollow structure. It mainly includes a disc-shaped sealing head 6 that matches the surface of the left atrium and a cylindrical positioning head that is installed and positioned in the left atrial appendage. Column 5; polytetrafluoroethylene isolation membrane 3 is lined in the bracket 1 and is sutured on the grid around the bracket 1 with medical sutures to block the blood flow; the transmission connector 2 is located on the disc-shaped bracket 1 On the pluggi...

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Abstract

The invention discloses a left auricle plugging device locating position automatically in left auricle, solving problems of irrational combination, damaging the left auricle when fixing and residual cavity in left auricle opening place existing in current left auricle plugging device, comprising cradle (1) woven with nickel-tantalum alloy and with net structure in the surface, and insulating membrane (3) installed in cradle (1), the said cradle (1) is formed by connection of hollow plate-like plugging head (6) and hollow cylindrical locating column (5), the outer diameter of the plate-like plugging head (6) is larger than that of cylindrical locating column (5); the center of (5) and (6) are equipped with insulating membrane (3); on the surface which (5)and (6) are not connected is equipped with delivery connector (2). The device is characterized by the rational structure, automatic locating in the left auricle, no occur of applications, and suitable for left auricle of different size.

Description

technical field [0001] The invention relates to a medical instrument, in particular to an instrument for treating left atrial appendage lesions, in particular to a left atrial appendage occluder capable of automatic positioning in the left atrial appendage. Background technique [0002] Currently, chronic atrial fibrillation (AF) is a common arrhythmia. AF patients are at high risk of thromboembolic stroke, and 20% of strokes are related to AF. More than 90% of emboli in non-valvular atrial fibrillation occur in the left atrial appendage (LAA). Drug intervention using warfarin is currently recognized as a treatment that can effectively prevent stroke in AF. However, warfarin has a high hemorrhage complication and requires monitoring of INR. Its pharmacological effects are affected by factors such as drugs and food, and it needs to be taken for life, so its clinical application is limited to a certain extent. In the past, surgical thoracotomy or LAA ligation was used to pre...

Claims

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Application Information

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IPC IPC(8): A61F2/02A61B17/03
Inventor 孔祥清
Owner 孔祥清
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