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:
Nov. 09, 2010
Filed:
Jul. 25, 2008
Jason Mcnally, Brighton, MA (US);
David Morrison, Pawtucket, RI (US);
Constantin Matchey, West Kingston, RI (US);
Jason McNally, Brighton, MA (US);
David Morrison, Pawtucket, RI (US);
Constantin Matchey, West Kingston, RI (US);
Medasys Incorporated, Mount Olive, NJ (US);
Abstract
An implantable drug delivery system utilizing a non-magnetic valve/accumulator metering assembly is disclosed. The solenoids of the prior art, which respond to magnetic fields, are replaced by Shape Memory Alloy (SMA) wires and associated control electronics. By exploiting the inherent characteristics of SMA wires, which can expand and contract based on their temperature, the movements required to actuate the metering assembly can be achieved. This configuration retains the benefits associated with the prior art, while eliminating the major drawback.