Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2011-04-12
2011-04-12
Lucchesi, Nicholas D (Department: 3767)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
C604S218000
Reexamination Certificate
active
07922694
ABSTRACT:
A drive device for a piston in a container containing a liquid comprises a first segment positioned between a second segment and an outlet of the container. The first and second segments each have a first shape in which the respective segment is clamped between lateral walls of the container and a second shape in which the respective segment is released from the lateral walls. A first actuator is configured to vary the first segment between its first and second shapes, and the first segment is in its first shape when the first actuator is inactive. A second actuator is configured to vary the second segment between its first and second shapes, and the second segment is in its second shape when the second actuator is inactive. A connecting segment connects the first segment to the second segment and has an actively variable connecting length.
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patent: WO 03/103763 (2003-12-01), None
Carlen, Mastrangelo: “Simple, high actuation power, thermally activated paraffin microactuator”, presented at the Transducers 1999 Conference, Sendai, Japan, Jun. 7-10, 1999.
“Paraffin Wax: Tensile Strength and Density at Various Temperatures,” W.F. Seyer and Kuramitsu Inouye, Industrial and Engineering Chemistry, vol. 27, No. 5, May 1935, pp. 367-370.
Barnes & Thornburg LLP
Gilbert Andrew M
Lucchesi Nicholas D
Roche Diagnostics GmbH
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