Rotating valve assembly including multi-lumen spherical valve

摘要

A valve assembly includes a valve housing having an upper body portion and a lower body portion that define an internal chamber for accommodating a valve member. The housing has axially aligned inlet and outlet ports. The valve assembly includes a generally spherical valve member seated within the internal chamber that defines first and second bores. The first bore defines a first longitudinal axis and the second bore defines a second longitudinal axis offset relative to the first longitudinal axis. The valve member is mounted for movement between a first position and a second position. The valve assembly includes a camming mechanism for moving the valve member between the first position and the second position, including cam surfaces formed on the exterior surface of the valve member and a cam pin formed on the interior surface of the upper body portion of the housing.

主权项

1. A valve system comprising:
a valve housing having an upper body portion and a lower body portion, the upper and lower body portions being separable and defining an internal chamber and a central axis, the valve housing having axially aligned inlet and outlet ports formed in the upper and lower body portions, respectively; a first spherical valve member selectively positionable within the internal chamber of the valve housing, the first spherical valve member movable in the internal chamber between first and second positions, the first spherical valve member defining first and second bores that extend through the first spherical valve member, the first bore defining a first longitudinal axis and the second bore defining a second longitudinal axis offset relative to the first longitudinal axis, the first bore supporting a first seal and the second bore supporting a second seal, the first seal extending across the first bore and configured to sealingly engage a first surgical instrument having a first instrument diameter, the second seal extending across the second bore and configured to sealingly engage a second surgical instrument having a second instrument diameter that is different from the first instrument diameter; and a second spherical valve member selectively positionable within the internal chamber of the valve housing to replace the first spherical valve member.