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:
Dec. 17, 2002
Filed:
Jun. 05, 2001
Carlos H. Mastrangelo, Ann Arbor, MI (US);
Edwin T. Carlen, Cambridge, MA (US);
The Regents of the University of Michigan, Ann Arbor, MI (US);
Abstract
A microfluidic device adapted for use with a power source is disclosed. The device includes a substrate and a heater member. The substrate and heater member form a first portion. A second portion is formed adjacent to the first portion. The second portion includes a high activating power polymer portion, at least one resin layer and a shield member. The second portion is selectively shaped to form a thermal expansion portion. A diaphragm member encapsulates the thermal expansion portion so that when power is applied to the heater portion, the high activating power polymer expands against the diaphragm member, causing the diaphragm member to deflect. This device is adapted for use as a microactuator or a blocking microvalve.