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. 15, 1999
Filed:
Nov. 06, 1997
Richard M Romley, Alameda, CA (US);
Brian S Donlon, Los Altos Hills, CA (US);
Timothy J Corvi, Belmont, CA (US);
Sylvia W Fan, San Francisco, CA (US);
Jan Komtebedde, Cupertino, CA (US);
Keke J Lepulu, Sunnyvale, CA (US);
Sylvester B Lucatero, Sunnyvale, CA (US);
Heartport, Inc., Redwood City, CA (US);
Abstract
A method and device for introduction of a catheter and/or delivering a fluid, such as oxygenated blood, to a patient's vascular system includes a cannula having an expandable portion. The expandable portion is movable from a collapsed position to an expanded position. The expandable portion is inserted into the patient in the collapsed position which facilitates introduction and advancement of the cannula through the patient's blood vessel. After introduction into the patient, the expandable portion is moved to the expanded position. The expandable portion protects the blood vessel against fluid forces when flowing a fluid through the cannula and protects the vessel from contact with the catheter advanced through the cannula.