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:
Nov. 09, 1993
Filed:
Dec. 23, 1991
Christopher Miller, San Jose, CA (US);
Ahmed Sharkawy, Mountain View, CA (US);
Advanced Cardiovascular Systems, Inc., Santa Clara, CA (US);
Abstract
An apparatus for use in cannulation of blood vessels which includes an ultrasonic flow sensing assembly. The assembly includes inner and outer elongated electrically conducting tubular members which are separated by an electrical insulator. A piezoelectric transducer capable of generating and receiving ultrasonic waves is located at the distal ends of the tubular members and is electrically connected to them. A power source is applied to the tubular members and to the piezoelectric transducer such that when a hollow needle containing the ultrasonic flow sensing assembly is advanced through tissue, emitted and detected ultrasonic waves can be employed to locate body vessels which can then be penetrated by the sharpened end of the hollow needle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile