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:
Dec. 20, 1977
Filed:
Apr. 08, 1976
Herbert Karsh, Laguna Beach, CA (US);
Bell & Howell Company, Chicago, IL (US);
Abstract
Methods and apparatus are disclosed for handling a compatible solution relative to a circulatory system of a living organism with the aid of a catheter and a recipient device having a circular cavity connected to the catheter. The compatible solution is injected into the circular cavity and is rotated in that cavity in a whirl sweeping all regions of the circular cavity and having a peripheral portion encompassing a central axis of the circular cavity and proceeding circumferentially along a peripheral boundary of the circular cavity. There are also disclosed methods and apparatus for transferring a pressure signal relative to a liquid in a circular cavity. Liquid is injected into the circular cavity and is rotated therein in a whirl sweeping all regions of the circular cavity and having a peripheral portion encompassing a central axis of the circular cavity and proceeding circumferentially along a peripheral boundary of the circular cavity.