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:
Jan. 31, 1984
Filed:
Jan. 07, 1982
Applicant:
Inventors:
C Wayne Robbins, Lawrenceville, NJ (US);
William S Trimmer, Belle Mead, NJ (US);
Assignee:
Technicare Corporation, Solon, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128660 ; 128653 ; 73644 ;
Abstract
A solid steel stylette is carried coaxially within a hollow biopsy needle, with the void therebetween filled and packed with several layers of hollow plastic microspheres having an approximate diameter of 0.80 millimeters. Ultrasound energy impinging on the needle tip is converted to pressure waves which are conveyed back up the stylette, there to be converted to electrical energy for coordination with the image of the system. The packing of hollow plastic microspheres acoustically insulates the stylette from the needle.