The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 2022
Filed:
Mar. 22, 2019
Venus Medtech (Hangzhou), Inc., Zhejiang, CN;
Min Frank Zeng, Irvine, CA (US);
Zhenjun Zi, Hangzhou, CN;
Venus Medtech (Hongzhou) Inc, Hongzhou, CN;
Abstract
A delivery system facilitating retrieval of interventional device includes a sheath, an operation handle for driving the sheath to move, and a tube axially slidably engaging with the pusher section. The sheath includes a carrier section at a proximal end for surrounding the interventional device and a pusher section connected with the carrier section. Depending on different axial positions, the tube assumes an initial configuration in which a proximal end portion thereof is at a periphery of the pusher section, and an operation configuration in which the proximal end portion is held tightly around the carrier section and limits further expansion of the carrier section. The delivery system functions to hold the support frame tightly by surrounding the sheath with the axially movable tube, retrieving the support frame and preventing the support frame from falling off from a core shaft, thereby reducing risks in surgery and the mortality rate. The tube may be manually driven or driven in other ways, which is convenient to coordinate with known control handles or sheaths.