Adjustable seal
AssigneeBoston Scientific Medical Device Limited
InventorDeepak Kumar Sharma
Life of this patent
Estimating the term…
Abstract
A medical device is adapted to seal around elongate shafts of varying diameter therethrough. The medical device includes a plurality of elastomeric sealing members together defining a variable dimension aperture, a chuck body, and a chuck ring that is rotatably secured relative to the chuck body. The medical device is adapted such that rotating the chuck ring in a first direction causes the plurality of elastomeric sealing members to move closer together, thereby reducing a size of the variable dimension aperture, and rotating the chuck ring in a second direction causes the plurality of elastomeric sealing members to move farther apart, thereby increasing a size of the variable dimension aperture.
Claims19
An adjustable, fluid tight seal adapted to accommodate elongate medical devices of varying diameter therethrough, the adjustable seal comprising:
- an inner chuck body having a longitudinal axis;
- a plurality of threaded rods extending through the inner chuck body at an acute angle with respect to the longitudinal axis;
- an outer chuck ring rotatably secured relative to the inner chuck body;
- an inner chuck ring including a threaded surface adapted to threadedly engage with the plurality of threaded rods, the inner chuck ring secured to the outer chuck ring such that rotation of the outer chuck ring causes the inner chuck ring to rotate relative to the plurality of threaded rods;
- and
- a plurality of elastomeric sealing members, with one of the plurality of elastomeric sealing member secured to each of the plurality of threaded rods, such that the elastomeric sealing members together define a variable dimension aperture that changes size as the plurality of threaded rods translate relative to the inner chuck ring.
A medical device adapted to accommodate elongate shafts of varying diameter therethrough, the medical device comprising:
- an inner chuck body;
- a plurality of threaded rods extending through the inner chuck body;
- a chuck ring rotatably secured relative to the inner chuck body, the chuck ring adapted to threadedly engage with the plurality of threaded rods such that rotation of the chuck ring causes the plurality of threaded rods to translate in response;
- and
- an elastomeric sealing assembly defining a variable dimension sealing aperture that is adapted to change size as the plurality of threaded rods translate relative to the inner chuck ring to create a fluid tight seal about an accommodated elongate shaft.
A medical device adapted to accommodate elongate shafts of varying diameter therethrough, the medical device comprising:
- a plurality of elastomeric sealing members together defining a variable dimension aperture to create a fluid tight seal about an accommodated elongate shaft;
- a chuck body;
- a chuck ring rotatably secured relative to the chuck body;
- a plurality of threaded rods slidingly disposed within the chuck body, the plurality of threaded rods adapted to threadedly engage the chuck ring such that rotation of the chuck ring causes the plurality of threaded rods to translate;
- wherein the plurality of elastomeric sealing members are secured relative to the plurality of threaded rods such that the plurality of elastomeric sealing members move relative to each other as the plurality of threaded rods translate relative to the chuck body;
- and
- wherein the medical device is adapted such that rotating the chuck ring in a first direction causes the plurality of elastomeric sealing members to move closer together, thereby reducing a size of the variable dimension aperture, and rotating the chuck ring in a second direction causes the plurality of elastomeric sealing members to move farther apart, thereby increasing a size of the variable dimension aperture.
Dependencies are inferred from the claim text.