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.

Date of Patent:
Aug. 27, 2019

Filed:

Aug. 07, 2017
Applicant:

Institut National D'optique, Quebec, CA;

Inventors:

Pascal Deladurantaye, Quebec, CA;

Ozzy Mermut, Quebec, CA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 18/20 (2006.01); A61B 18/22 (2006.01); A61F 9/008 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01); C12N 13/00 (2006.01); G01N 33/50 (2006.01);
U.S. Cl.
CPC ...
A61B 18/20 (2013.01); A61B 18/22 (2013.01); A61F 9/008 (2013.01); A61F 9/00814 (2013.01); C12N 13/00 (2013.01); G01N 33/5005 (2013.01); A61B 2017/00159 (2013.01); A61B 2017/00185 (2013.01); A61B 2018/00511 (2013.01); A61B 2018/00535 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/206 (2013.01); A61B 2018/2035 (2013.01); A61B 2018/20355 (2017.05); A61B 2018/2255 (2013.01);
Abstract

Methods and systems for the controlled generation of bubbles in a medium having a liquid phase are generally provided. Laser pulses having a time-dependent pulse parameter controllable over their duration are generated. The medium is irradiated with the laser pulses with a radiant exposure sufficient to initiate microcavitation within the medium during each laser pulse. The time-dependent pulse parameter of each laser pulse is controlled according to a generally positive variation over the pulse duration such that the medium absorbs a greater quantity of energy from the laser pulse at an end of the pulse duration than at a beginning thereof. Such methods and systems may be used for various applications such as biology, medicine or material processing.


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