An exemplary pharmaceutical compounding system and device for mixing materials from at least two distinct material sources can include a valve including a valve housing and a valve structure located within the valve housing. The valve structure can be configured to permit fluid to flow through the v
An exemplary pharmaceutical compounding system and device for mixing materials from at least two distinct material sources can include a valve including a valve housing and a valve structure located within the valve housing. The valve structure can be configured to permit fluid to flow through the valve when in an open position, and can include a gravity wall wherein, when the valve structure is in the open position, fluid moving through the valve structure moves upward against a force of gravity when travelling through the valve and traversing the gravity wall.
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1. A valve for use in a compounding device, comprising: a valve housing;a valve structure located within the valve housing and configured to permit fluid to flow through the valve when in an open position, the valve structure being rotatable about a rotational axis and with respect to the valve hous
1. A valve for use in a compounding device, comprising: a valve housing;a valve structure located within the valve housing and configured to permit fluid to flow through the valve when in an open position, the valve structure being rotatable about a rotational axis and with respect to the valve housing,the valve structure includes a gravity wall that defines a first fluid pathway on one side of the gravity wall and a second fluid pathway on an opposed side of the gravity wall such that fluid flows on both sides of the gravity wall during operation, and wherein, when the valve structure is in the open position, fluid moving through the valve structure moves upward against a force of gravity when travelling through the valve and traversing the gravity wall. 2. The valve of claim 1, wherein the gravity wall initially extends obliquely from an inner peripheral wall of the valve housing and extends downward and substantially parallel with the rotational axis. 3. The valve of claim 2, wherein the gravity wall is spaced from a bottom floor surface of the valve to define a gravity wall outlet, and the gravity wall is configured to define a J-shaped fluid path that turns around the gravity wall, and wherein the end of the J-shaped fluid path is in selective fluid communication with a channel defined by the valve housing. 4. The valve of claim 1, wherein the gravity wall and the valve housing together define a J-shaped fluid path, the J-shaped fluid path having a long arm portion and a shorter arm portion both meeting at a lowermost trough portion of the J-shaped fluid path. 5. The valve of claim 4, wherein a cross-section of the first fluid pathway is located in the long arm portion and taken normal to a direction of fluid flow in the long arm portion of the J-shaped fluid path is greater than a cross-section of the second fluid pathway located in the shorter arm portion and taken normal to a direction of fluid flow in the shorter arm portion of the J-shaped fluid path. 6. The valve of claim 4, wherein a volume defined by the long arm portion of the J-shaped fluid path is greater than a volume defined by the shorter arm portion of the J-shaped fluid path. 7. A valve for use in a compounding device, comprising: a valve housing;a plurality of valve structures each configured to be rotatable with respect to the valve housing and to permit fluid to flow through the valve when in an open position,each of the valve structures includes a gravity wall spaced from the valve housing on both a first side of the gravity wall and a second side of the gravity wall, the first side of the gravity wall being directly opposed to the second side of the gravity wall, the gravity wall defining a first fluid pathway adjacent the first side of the gravity wall and a second fluid pathway adjacent the second side of the gravity wall, and wherein, when a respective one of the valve structures is in the open position, fluid moving through the respective one of the valve structures moves upward against a force of gravity when travelling through the valve and traversing the gravity wall, wherein the valve housing includes a plurality of openings configured to seat the plurality of valve structures. 8. The valve of claim 7, wherein at least one of the valve structures is a different size as compared to another of the valve structures. 9. The valve of claim 1, wherein the valve structure is made from a first material having a first elasticity value, and the valve housing is made from a second material having a second elasticity value, and the first elasticity value being greater than the second elasticity value, wherein the valve structure is more elastic than the valve housing. 10. The valve of claim 1, wherein the valve structure includes an inlet opening located at a top portion of the valve structure, the inlet opening having a central axis defining a first fluid path in the valve structure, and the gravity wall extends from an inner peripheral wall of the inlet opening and extends towards the central axis of the inlet opening. 11. The valve of claim 10, wherein the gravity wall extends in a direction downward from the inlet opening. 12. The valve of claim 1, wherein the valve structure includes an inlet opening located at a top portion of the valve structure, the inlet opening having a central axis defining a first fluid path in the valve structure, and the valve structure includes a keyway structure located at a bottom portion of the valve structure, the keyway structure configured to allow the valve structure to be rotated about the rotational axis when actuated by an actuator that mates with the keyway structure. 13. A valve for use in a compounding device, comprising: a valve housing;a valve structure having a rotational axis, the valve structure rotatable about the rotational axis and with respect to the valve housing;an input aperture located at a top of the valve structure and configured such that fluid entering the valve structure flows along a downward fluid path and substantially parallel with the rotational axis of the valve structure;an exit aperture defined in a peripheral side wall of the valve structure and configured such that fluid exiting the valve structure flows along an exit path that is substantially perpendicular to the rotational axis of the valve structure; anda gravity wall located within the valve structure and configured such that fluid travelling through the valve travels along the downward fluid path at an upstream side of the gravity wall, and travels on an upward fluid path on a downstream side of the gravity wall, wherein the upstream side and downstream side of the gravity wall are opposed to each other, and a direction of the downward fluid path is generally opposed to a direction of the upward fluid path, and wherein when the valve structure is in an open position, fluid moving through the valve structure moves upward against a force of gravity when travelling through the valve and traversing the gravity wall. 14. The valve of claim 13, wherein the gravity wall initially extends obliquely from an inner peripheral wall of the valve structure and extends downward and substantially parallel with the rotational axis of the valve structure. 15. The valve of claim 14, wherein the gravity wall is spaced from a bottom floor surface of the valve structure to define a gravity wall outlet, and the gravity wall is configured such that fluid turns substantially 180 degrees about the gravity wall as it passes through the gravity wall outlet. 16. The valve of claim 13, further comprising at least a second valve structure, wherein the valve housing includes a plurality of openings each configured to seat a respective one of the first and second valve structures. 17. The valve of claim 16, wherein the first valve structure is a different size as compared to the second valve structure. 18. The valve of claim 13, wherein the gravity wall and the valve housing together define a J-shaped fluid path located within the valve, the J-shaped fluid path having a long arm portion and a shorter arm portion both meeting at a lowermost trough portion. 19. The valve of claim 18, wherein a cross-section of the J-shaped fluid path taken perpendicular to a fluid flow direction and located in the long arm portion is greater than a cross-section of the J-shaped fluid path taken perpendicular to fluid flow direction and located in the shorter arm portion of the J-shaped fluid path. 20. The valve of claim 18, wherein a volume defined by the long arm portion of the J-shaped fluid path is greater than a volume defined by the shorter arm portion of the J-shaped fluid path.
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