Certain embodiments provide a vitrectomy probe including a housing, an actuator disposed inside the housing, a cutter coupled to the actuator and extending from the housing and an air turbine disposed inside the housing. The air turbine includes a rotor and a plurality of turbine blades coupled to the rotor. The vitrectomy probe includes a valve body interfacing with the rotor. During rotation of the air turbine, air is selectively routed to and from the actuator according to a rotational position of the rotor in relation to the valve body, thereby reciprocating the cutter.

Certain embodiments provide a vitrectomy probe including a housing, an actuator disposed inside the housing, a cutter coupled to the actuator and extending from the housing and an air turbine disposed inside the housing. The air turbine includes a rotor and a plurality of turbine blades coupled to the rotor. The vitrectomy probe includes a valve body interfacing with the rotor. During rotation of the air turbine, air is selectively routed to and from the actuator according to a rotational position of the rotor in relation to the valve body, thereby reciprocating the cutter.

A bar valve includes an elongate housing having a first inlet located towards a first end of the housing, a second inlet located towards a second end of the housing, and an outlet located between the first inlet and the second inlet. A mixing chamber is located within the housing, the mixing chamber being configured to receive first and second input flows from the first inlet and second inlet, respectively. A flow controller is configured to receive a mixed flow from the mixing chamber and controllably output an outlet flow to the outlet. The mixing chamber and flow controller is disposed sequentially in a region of the housing between the first end and the outlet, thereby confining the mixed flow and the outlet flow to the region of the housing between the first end and the outlet.

A bar valve includes an elongate housing having a first inlet located towards a first end of the housing, a second inlet located towards a second end of the housing, and an outlet located between the first inlet and the second inlet. A mixing chamber is located within the housing, the mixing chamber being configured to receive first and second input flows from the first inlet and second inlet, respectively. A flow controller is configured to receive a mixed flow from the mixing chamber and controllably output an outlet flow to the outlet. The mixing chamber and flow controller is disposed sequentially in a region of the housing between the first end and the outlet, thereby confining the mixed flow and the outlet flow to the region of the housing between the first end and the outlet.

A bidet attachment system includes an attachment structure configured for removable attachment to a toilet bowl, a spray structure for spraying water, a rotatable dial located on a top side of the attachment structure, and a valve having an inlet section, a valve section downstream of the inlet section, the valve section regulating passage of water from the inlet section, an outlet section downstream of the valve section, wherein the outlet section includes a first outlet that allows for egress of water and a second outlet that allows for egress of water, wherein the valve section includes an adjustable control disc being mechanically coupled with the dial such that rotation of the dial rotates the control disc, the control disc having a first and a second channel bore, and a stationary disc downstream from the stationary disc having a first and a second channel bore.

The present disclosure describes a flow reversing valve, along with associated methods and systems for providing forward flow, reverse flow, and bypass flow modes of operation, and integrating them into patient treatment systems, including those used for treating and inducing hyperthermia.

A valve device includes a case including an open lower portion and an accommodation space provided therein, a base plate to cover the open lower portion of the case, a refrigerant inlet pipe connected to the base plate and to allow a refrigerant to flow into the accommodation space, an inlet and outlet pipe connected to the base plate to allow the refrigerant to flow in and out, a boss including a refrigerant inlet and outlet hole formed at a first position spaced apart from a center to communicate with the inlet and outlet pipe, and an extending groove extending radially outward from the first position to a second position and connected to the refrigerant inlet and outlet hole, and a pad including an open cavity rotatable on one side of the boss to close the refrigerant inlet and outlet hole and to open the extending groove.

A valve device includes a case including an open lower portion and an accommodation space provided therein, a base plate to cover the open lower portion of the case, a refrigerant inlet pipe connected to the base plate and to allow a refrigerant to flow into the accommodation space, an inlet and outlet pipe connected to the base plate to allow the refrigerant to flow in and out, a boss including a refrigerant inlet and outlet hole formed at a first position spaced apart from a center to communicate with the inlet and outlet pipe, and an extending groove extending radially outward from the first position to a second position and connected to the refrigerant inlet and outlet hole, and a pad including an open cavity rotatable on one side of the boss to close the refrigerant inlet and outlet hole and to open the extending groove.

Valve with two-piece stator assembly for use with liquid chromatography or other analytical systems. A separate and removable stator plate is provided with a mounting device to provide a two-piece stator assembly. The mounting device is adapted on one side to engage and contact the stator plate, and on the other side includes a plurality of ports for fluidic connections which are in fluid communication with fluid passageways in the stator plate.

Valve with two-piece stator assembly for use with liquid chromatography or other analytical systems. A separate and removable stator plate is provided with a mounting device to provide a two-piece stator assembly. The mounting device is adapted on one side to engage and contact the stator plate, and on the other side includes a plurality of ports for fluidic connections which are in fluid communication with fluid passageways in the stator plate.