Brain protection device
A technology of brain protection and filter sleeves, which is applied in the fields of filters in blood vessels, prostheses, medical science, etc., and can solve problems such as the inability to protect the head and brachial trunk, the left common carotid artery and the left subclavian artery.
Pending Publication Date: 2022-06-03
MITRASSIST LIFESCIENCES LTD
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[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.
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The invention provides a brain protection device. The brain protection device comprises a first filtering sleeve, a partial guiding piece and a second filtering sleeve. A first opening is formed in the first end of the first filter sleeve; the first filter sleeve is used for being embedded in the head-arm trunk, and the first opening is used for being communicated with the aortic arch; the partial guide piece is connected with the first end of the first filter sleeve; the partial guiding piece is arranged in an aortic arch and is used for covering a left common carotid artery and a left subclavian artery; a second opening is formed in the first end of the second filter sleeve, and the first end of the second filter sleeve is connected with one end, far away from the first filter sleeve, of the deflector; the second filter sleeve is used for being embedded in the descending aorta, and the second opening is used for being communicated with the aortic arch. According to the brain protection device, thrombus and other sundries can be prevented from entering the brachial trunk, the left common carotid artery, the left subclavian artery and the descending aorta, the brachial trunk, the left common carotid artery and the left subclavian artery can be all protected, and the risk of new stroke after operation is further reduced.
Description
technical field [0001] The present application relates to the technical field of brain protection devices, and in particular, to a brain protection device. Background technique [0002] Currently, during transcatheter aortic valve replacement, the stenotic material surrounding the valve can slough off during implantation of the prosthetic valve. Furthermore, atheroma along and in the aorta and aortic arch may fall off as the TAVR catheter is advanced toward the diseased aortic valve and subsequently withdrawn after implantation is complete. In addition, fragments of the catheter itself may also be dislodged during delivery and implantation. These various forms of vascular debris, whether native or foreign, may travel into one or more cerebral arteries leading to stroke. The existing brain protection device is used to filter the above-mentioned vascular debris, but the existing brain protection device fails to completely cover the aortic arch, and cannot make the brachiocep...
Claims
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IPC IPC(8): A61F2/01
CPCA61F2/01A61F2/012
Inventor 赵向前沈斌汪泽辉
Owner MITRASSIST LIFESCIENCES LTD