Title:
METHOD FOR USING MICROELECTROMECHANICAL SYSTEMS TO GENERATE MOVEMENT IN A PHACOEMULSIFICATION HANDPIECE
Document Type and Number:
WIPO Patent Application WO/2011/112582
Kind Code:
A3
Abstract:
The present invention relates to a phacoemulsification handpiece, comprising a needle and a microelectromechanical system (MEMS) device, wherein the needle is coupled with the MEMS device. The phacoemulsification handpiece may further comprise a horn, wherein the horn is coupled with the needle and the MEMS device. The MEMS device is capable of generating movement of the needle in at least one direction, wherein at least one direction is selected from the group consisting of transversal, torsional, and longitudinal. The present invention also relates to a method of generating movement, comprising providing a phacoemulsification handpiece, wherein the handpiece comprises a needle and one or more MEMS devices; applying a voltage or current to the one or more MEMS devices, wherein the MEMS devices are coupled with the needle; and moving the needle in at least one direction. The present invention also relates to a vitrectomy cutter comprising one or more MEMS devices.
Inventors:
HUNTER TIMOTHY (US)
Application Number:
PCT/US2011/027547
Publication Date:
December 22, 2011
Filing Date:
March 08, 2011
Export Citation:
Assignee:
ABBOTT MEDICAL OPTICS INC (US)
HUNTER TIMOTHY (US)
HUNTER TIMOTHY (US)
International Classes:
A61F9/007
Domestic Patent References:
| WO2007056763A2 | 2007-05-18 |
Foreign References:
| US5733256A | 1998-03-31 | |||
| US20020193817A1 | 2002-12-19 |
Other References:
M. MOTTAGHI, F. GHALICHI, H. BADIRI GHAVIFEKR, H. NIROOMAND OSKUI: "Development of a Microsensor to Minimize Post Cataract Surgery Complications", WORLD ACADEMY OF SCIENCE, ENGINEERING AND TECHNOLOGY, vol. 44, 2008, s.o., pages 406 - 409, XP002644197
XI CHEN ET AL: "Integrated pressure and flow sensor in silicon-based ultrasonic surgical actuator", 2001 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS. ATLANTA, GA, OCT. 7 - 10, 2001; [IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS], NEW YORK, NY : IEEE, US, vol. 2, 7 October 2001 (2001-10-07), pages 1373 - 1376, XP010584767, ISBN: 978-0-7803-7177-4
CEDRAT GROUP: "Amplified Piezoelectric Actuators (APA)", 22 April 2009 (2009-04-22), XP002660644, Retrieved from the Internet [retrieved on 20111006]
XI CHEN ET AL: "Integrated pressure and flow sensor in silicon-based ultrasonic surgical actuator", 2001 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS. ATLANTA, GA, OCT. 7 - 10, 2001; [IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS], NEW YORK, NY : IEEE, US, vol. 2, 7 October 2001 (2001-10-07), pages 1373 - 1376, XP010584767, ISBN: 978-0-7803-7177-4
CEDRAT GROUP: "Amplified Piezoelectric Actuators (APA)", 22 April 2009 (2009-04-22), XP002660644, Retrieved from the Internet
Attorney, Agent or Firm:
YORITA, Tamara J. (1700 E. St. Andrew PlaceSanta Ana, CA, US)
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