Medical suction valve
AssigneeSciMed Life Systems, Inc.
InventorsAndy H. Levine, Eric May, Anthony R. Tremaglio
Life of this patent
Estimating the term…
Abstract
A valve assembly includes a housing defining an aperture, a passageway, and a branch passage. The branch passage extends from the aperture and intersects and communicates with the passageway. The branch passage is disposed at an angle greater than 90 degrees with respect to the passageway. A piston is disposed at least partially within the branch passage and is movable from a first position to a second position. The piston allows communication between the passageway and the aperture when the piston is in the first position, and the piston blocks communication between the passageway and the aperture when the piston is in the second position. An angled seal may be positioned around the piston.
Claims22
A sheath assembly for use with an endoscopic medical device, comprising:
- a valve assembly comprising:
- a housing defining:
- an aperture,
- a passageway, and
- a branch passage extending from the aperture and intersecting and communicating with the passageway, the branch passage disposed at an angle greater than 90 degrees with respect to the passageway;
- a piston defining an opening therethrough and disposed at least partially within the branch passage, the piston interrupting the branch passage such that the branch passage includes at least two sections, the piston being movable from a first position to a second position, the opening through the piston allowing communication between the aperture and the passageway when the piston is in the first position and the piston blocking communication between the passageway and the aperture when the piston is in the second position, the opening and the at least two sections forming a substantially straight-through and continuous pathway when the piston is in the first position;
- and
- a seal around the piston;
- and
- a sheath extending from the passageway and for passing over at least a portion of the endoscopic medical device.
A sheath assembly for use with an endoscopic medical device, comprising:
- a valve assembly comprising:
- a housing defining:
- an aperture,
- a passageway, and
- a branch passage extending from the aperture and intersecting and
- communicating with the passageway;
- a piston disposed at least partially within the branch passage, the piston defining an opening therethrough, the piston interrupting the branch passage such that the branch passage includes at least two sections, the piston being movable from a first position to a second position, the opening through the piston allowing communication between the aperture and the passageway when the piston is in the first position and the piston blocking communication between the aperture and the passageway when the piston is in the second position, the opening and the at least two sections forming a substantially straight-through and continuous pathway when the piston is in the first position;
- and
- an angled seal around the piston;
- and
- a sheath extending from the passageway and for passing over at least a portion of the endoscopic medical device.
Dependencies are inferred from the claim text.