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:
May. 21, 1985
Filed:
Apr. 09, 1984
Georg Teslawski, Menlo Park, CA (US);
Paul D Corl, Mountain View, CA (US);
Diasonics, Inc., Milpitas, CA (US);
Abstract
An ultrasonic scanner for medical diagnostics is disclosed. The scanner includes an upper head assembly and a lower drive assembly. The upper head assembly includes a fluid chamber filled with a liquid acoustic couplant. An oscillating transducer is driven in an asymmetric motion by a linkage coupled off-center to a flywheel within the fluid chamber. An inflatable bladder is provided in the upper assembly which is in fluid communication with the fluid chamber. The application of force to the membrane boot of the scanner forces fluid into the bladder. Once the external pressure is removed, the bladder is biased such that it is compressed, thereby forcing fluid to return to the fluid chamber and maintaining a generally constant pressure within the chamber. Supporting electronics are provided including means for compensating for the asymmetric motion of the transducer.