Shape memory shutter device

Surgery – Means for introducing or removing material from body for... – Material introduced into and removed from body through...

Reexamination Certificate

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Details

C604S030000, C604S031000, C604S032000, C604S033000, C604S034000, C604S036000, C604S037000, C604S038000, C604S039000, C604S040000, C604S041000, C604S042000, C623S014130

Reexamination Certificate

active

11116227

ABSTRACT:
A shape memory shutter device for controlling the rectum of a disabled person, comprises a section of conduit to be connected to the rectum of the disabled person, and a shutter which controls the passage through the conduit section and actuated by a shape memory actuator. The shutter comprises a plurality of petals positioned circumferentially around the conduit section and able to move between a closed and an open position. The actuator comprises shape memory wires associated to the petals which are supplied with electrical current to cause opening of the petals.

REFERENCES:
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patent: 4596554 (1986-06-01), Dastgeer
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patent: 6440164 (2002-08-01), DiMatteo et al.
patent: 6939332 (2005-09-01), Perlo et al.
patent: 2002/0129822 (2002-09-01), Furukawa et al.
patent: 2003/0220621 (2003-11-01), Arkinstall
patent: 0 110 685 (1984-06-01), None
patent: 1 238 638 (2002-09-01), None
patent: 1 243 235 (2002-09-01), None

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