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:
Apr. 26, 2022
Filed:
Mar. 28, 2019
Applicant:
Siemens Medical Solutions Usa, Inc., Malvern, PA (US);
Inventors:
Stephen J. Rosenzweig, Seattle, WA (US);
Paul Reynolds, Renton, WA (US);
Assignee:
Siemens Medical Solutions USA, Inc., Malvern, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 8/00 (2006.01); A61B 8/08 (2006.01); G01S 15/62 (2006.01);
U.S. Cl.
CPC ...
A61B 8/485 (2013.01); A61B 8/483 (2013.01); A61B 8/5207 (2013.01); G01S 15/62 (2013.01);
Abstract
Asymmetry is provided for the pushing pulse in acoustic radiation force impulse (ARFI) imaging. MI is based on the negative pressure. By increasing the positive pressure more than the negative pressure, the magnitude of displacement may be increased without exceeding the MI limit. Similarly, negative voltages depole while positive do not, so using an ARFI or pushing pulse with asymmetric positive-to-negative peak pressures or voltages allows for generation of greater magnitude of displacement without harm to the transducer.