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:
Jul. 22, 2014
Filed:
Oct. 25, 2007
Applicants:
Joseph John Cefai, Swansea, GB;
Julian Llewellyn Shapley, Cardiff, GB;
Inventors:
Joseph John Cefai, Swansea, GB;
Julian Llewellyn Shapley, Cardiff, GB;
Assignee:
Cellnovo, Ltd., Swansea, GB;
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An actuator comprises a cavity containing a working medium that reversibly expands as it undergoes a phase change from a solid to a liquid state, a diaphragm disposed adjacent the cavity such that expansion and contraction of the expandable working medium causes the diaphragm to deflect, and a semiconductor element disposed in the cavity, wherein the semiconductor element is adapted to heat the working medium to cause it to undergo the phase change into the liquid state. The actuator may be used in a pump for an infusion system.