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:
Jun. 29, 2021
Filed:
Apr. 10, 2015
University Health Network, Toronto, CA;
Daniel Gavin Harrison, Toronto, CA;
Geoffrey Samuel Frost, Toronto, CA;
Thomas Kenneth Waddell, Toronto, CA;
Laura Ann Wyvill, Mississauga, CA;
Raymond Francis Cracauer, Beulah, CO (US);
Shafique Keshavjee, Toronto, CA;
Marcelo Cypel, Toronto, CA;
Randy Yang, Oakville, CA;
UNIVERSITY HEALTH NETWORK, Toronto, CA;
Abstract
A cannula for connecting a medical device to a biological system is taught. The cannula includes a tissue engagement portion, preferably in the form of an annulus, to which a vacuum is applied through the cannula to attract and hold tissue of the biological system in an initial connection while an affixment device is applied to complete the connection. In addition to a working fluid conduit, comprising a main port, a working fluid passage and a working fluid port, and a port to apply the vacuum, the cannula can include a sensor port to allow sensing pressure or other characteristics of the working fluid at a point closely adjacent to the connection between the cannula and the biological system.