Surgery – Instruments – Internal pressure applicator
Reexamination Certificate
2011-03-01
2011-03-01
Bui, Vy Q (Department: 3773)
Surgery
Instruments
Internal pressure applicator
C606S191000, C606S198000, C623S001150
Reexamination Certificate
active
07896898
ABSTRACT:
Blood clot filters having self-centering capabilities when placed in a blood vessel are disclosed. A blood clot device in accordance with an exemplary embodiment of the present invention may include a number filter legs formed at least in part of a shape-memory material configured to transform from a centering configuration to a filtering when deployed in the body. An attachment section on the distal section of each filter leg is configured to pierce and secure the filter to the vessel wall at a first location. A bend region may be heat set into the shape-memory material to provide a second contact location along the vessel wall to aid in centering the filter within the vessel. The bend region can be formed by heating the shape-memory material above its final austenite temperature (Af), and then shaping the filter leg to form a pad that abuts the vessel wall during deployment.
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Boston Scientific Scimed Inc.
Bui Vy Q
Seager Tufte & Wickhem LLC
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