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:
Jun. 09, 2020
Filed:
Sep. 24, 2013
Seok Chang Ryu, Stanford, CA (US);
Mark Cutkosky, Palo Alto, CA (US);
Richard J. Black, Menlo Park, CA (US);
Joannes Mario Costa, Rancho La Costa, CA (US);
Behzad Moslehi, Los Altos, CA (US);
Fereydoun Faridian, Atherton, CA (US);
Levy Oblea, Union City, CA (US);
Vahid Sotoudeh, Los Altos, CA (US);
Seok Chang Ryu, Stanford, CA (US);
Mark Cutkosky, Palo Alto, CA (US);
Richard J. Black, Menlo Park, CA (US);
Joannes Mario Costa, Rancho La Costa, CA (US);
Behzad Moslehi, Los Altos, CA (US);
Fereydoun Faridian, Atherton, CA (US);
Levy Oblea, Union City, CA (US);
Vahid Sotoudeh, Los Altos, CA (US);
Intelligent Fiber Optic Systems, Inc., San Jose, CA (US);
Abstract
A biopsy needle has a cylindrical shell outer cannula and a stylet consisting of an inner stylet and outer stylet, both of which are inserted into the cylindrical cannula. The outer stylet has a series of strain relieved slits which provide bending over a deflection region in one direction, and the outer stylet is formed from a material such as a shape memory alloy (SMA) having a superelastic phase. The deflection is generated by an SMA wire spanning a deflection extent and attached to the outer stylet on either side of the deflection extent. The inner stylet, when positioned inside the outer stylet, has one or more actuation fibers which couple optical energy into the SMA wire, causing a deflection of the outer stylet over the deflection extent, with the optical energy provided to the actuation fibers for control of the deflection.