External left ventricular auxiliary device
An auxiliary device and ventricular technology, applied in medical science, prosthesis, suction equipment, etc., can solve problems such as aortic valve regurgitation, complicated implantation process, and heart damage caused by surgery, and achieve assisted ventricular contraction and equipment conditions Simple, complication-avoiding effects
Inactive Publication Date: 2020-02-07
WUHAN UNIV
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Problems solved by technology
The continuous axial flow design pumps blood into the aorta throughout the cardiac cycle, which can easily cause aortic valve regurgitation and induce heart failure.
In addition, vascular anastomosis must be performed after cardiac arrest with the support of extracorporeal circulation, the surgical operation will cause damage to the heart itself, the implantation process is relatively complicated, and the maintenance cost of equipment is expensive. These are the shortcomings that the current LVAD cannot be widely used clinically.
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[0025] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0026] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...
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The invention discloses an external left ventricular auxiliary device, which relates to the field of medical equipment. The ventricular auxiliary device comprises a heart stent, a heart extrusion filmand an inflating and deflating device, wherein the heart stent is used for sleeving the surface of the heart and is made of an elastic material; the heart extrusion film is arranged on the inner wallof the heart stent, and the heart extrusion film is provided with a plurality of shielding area non-extrusion parts covering a coronary artery running area of the heart and a plurality of expandableor contractible extrusion parts; and the inflating and deflating device is used for driving each extrusion part to expand or contract. The external left ventricular auxiliary device can be implanted into epicardium through a minimally invasive surgery to achieve the effect of assisting ventricular contraction, can be removed through interventional surgery or a thoracoscope without damaging an original anatomical structure, and can avoid complications generated by the traditional left ventricular auxiliary device.
Description
technical field [0001] The present application relates to the field of medical equipment, in particular to an extraventricular left ventricular assist device. Background technique [0002] Chronic heart failure (CHF) poses a serious medical and economic burden worldwide. Although advances in medical therapy and cardiac resynchronization therapy have improved CHF symptoms and quality of life and reversed some myocardial remodeling, many patients eventually develop medically intractable end-stage CHF even while receiving optimal medical therapy . The best treatment option for end-stage CHF is heart transplantation, however the shortage of donor organs requires alternative treatment strategies. The left ventricular assist device (Left Ventricular Assist Device, LVAD) as a bridge to transplantation or the ultimate goal of treatment has become an increasingly acceptable treatment strategy for these patients. [0003] LVADs have grown considerably over the past few decades and ...
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IPC IPC(8): A61M1/10
CPCA61M60/258A61M60/894
Inventor 刘弟世闻杨波
Owner WUHAN UNIV