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:
Jun. 05, 2018

Filed:

Mar. 27, 2013
Applicant:

Vicentra B.v., Utrecht, NL;

Inventor:

Joseph John Cefai, West Glamorgan, GB;

Assignee:

ViCentra B.V., Utrecht, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/20 (2006.01); A61M 5/145 (2006.01); F04B 19/00 (2006.01); F04B 43/04 (2006.01);
U.S. Cl.
CPC ...
A61M 5/1452 (2013.01); A61M 5/1454 (2013.01); F04B 19/006 (2013.01); F04B 43/043 (2013.01); A61M 2005/14506 (2013.01); A61M 2205/0244 (2013.01); A61M 2205/0266 (2013.01); A61M 2207/00 (2013.01);
Abstract

A mechanical driver comprising a wedge shaped member operatively coupled to a shape memory alloy such that the shape memory alloy is able to displace the wedge shaped member in an essentially linear direction. The wedge shaped member is in constant contact with a lever arranged so that it can rotate about a fixed pivot point. A piston is arranged such that it is constant contact with the lever at a point between the pivot point of the lever and the contact point between the lever and the wedge shaped member. Return springs are provided to return the piston, lever and wedge shaped member to their respective start positions. Activation of the shape memory alloy displaces the wedge shaped member along its linear direction and this causes the lever to be deflected about its pivot point and the piston to be deflected in an essentially linear direction that is perpendicular to the linear direction of travel of the wedge shaped member.


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