Abstract: A fluid control device includes a body having an inlet, an outlet, and a fluid flow path between the inlet and the outlet, a seat, and a control element that is coupled to a stem. The control element and the stem are movable along a first axis and biased toward a closed position in which the control element engages the seat. The fluid control device includes an actuator assembly including a shaft that is operatively coupled to the stem via a Scotch yoke mechanism such that rotation of the shaft in a first rotational direction causes movement of the stem and control element along the first axis in a first translational direction. The actuator assembly includes a trigger mechanism that is responsive to fluid pressure and prevents rotation of the shaft in a first mode of operation and releases the shaft to allow rotation in a second mode of operation.

Abstract: A flow control device includes a valve body defining an inlet, an outlet, and a flow path. A valve seat assembly includes a fitting coupled to the valve body, a seat ring coupled to the fitting and defining a valve seat. The seat ring includes an inner groove formed on an interior surface of the seat ring. A control element is movable relative to the valve body between a closed position, in which the control element engages the valve seat, and an open position, in which the control element is spaced away from the valve seat. The seat ring is coupled to the fitting by snap-fit connection such that a portion of the fitting is disposed in the inner groove of the seat ring.

Abstract: A fluid control device comprising including a body having an inlet, an outlet, and a fluid flow path between the inlet and the outlet, a seat, and a control element that is coupled to a stem. The control element and the stem are movable relative to a longitudinal axis and biased toward a closed position, in which the control element engages the seat. An actuator assembly is operatively coupled to the stem and includes a planetary gear transmission mechanism configured to receive a first rotational velocity and to deliver a second rotational velocity different than the first rotational velocity. A shaft has a first end coupled to the transmission mechanism and a second end coupled to valve stem. The second rotational velocity is transmitted to the valve stem to move the control element between the closed position and an open position.

Abstract: A flow control device includes a valve body defining an inlet, an outlet, and a flow path. A valve seat assembly includes a fitting coupled to the valve body, a seat ring coupled to the fitting and defining a valve seat. The seat ring includes an inner groove formed on an interior surface of the seat ring. A control element is movable relative to the valve body between a closed position, in which the control element engages the valve seat, and an open position, in which the control element is spaced away from the valve seat. The seat ring is coupled to the fitting by snap-fit connection such that a portion of the fitting is disposed in the inner groove of the seat ring.

Abstract: A fluid control device comprising including a body having an inlet, an outlet, and a fluid flow path between the inlet and the outlet, a seat, and a control element that is coupled to a stem. The control element and the stem are movable relative to a longitudinal axis and biased toward a closed position, in which the control element engages the seat. An actuator assembly is operatively coupled to the stem and includes a planetary gear transmission mechanism configured to receive a first rotational velocity and to deliver a second rotational velocity different than the first rotational velocity. A shaft has a first end coupled to the transmission mechanism and a second end coupled to valve stem. The second rotational velocity is transmitted to the valve stem to move the control element between the closed position and an open position.

Abstract: A medical anastomosis device (100), having a firing assembly (50), a staple anvil (30), a staple anvil assembly (34), and a staple cartridge assembly (32); the firing assembly (50) includes a staple cartridge push rod (54) provided with a stop pin (542) thereon; the staple anvil (30) is provided with a safety block (38) therein capable of coordinating with the stop pin (542); the safety block (38) is provided with a clamping groove (384) thereon; when the anastomosis device (100) is in an initial status, the safety block (38) and the stop pin (542) do not contact each other; when the anastomosis device (100) is in a firing status, the movement of the safety block (38) is restricted, and the clamping groove (384) is located on a movement route from the distal end of the medical anastomosis device (100) to the proximal end; and when the anastomosis device (100) returns to the initial status after being fired, the stop pin (542) is clamped in the clamping groove (384), and the safety block (38) limits the stop p

Abstract: A medical anastomosis device (100), having a firing assembly (50), a staple anvil (30), a staple anvil assembly (34), and a staple cartridge assembly (32); the firing assembly (50) includes a staple cartridge push rod (54) provided with a stop pin (542) thereon; the staple anvil (30) is provided with a safety block (38) therein capable of coordinating with the stop pin (542); the safety block (38) is provided with a clamping groove (384) thereon; when the anastomosis device (100) is in an initial status, the safety block (38) and the stop pin (542) do not contact each other; when the anastomosis device (100) is in a firing status, the movement of the safety block (38) is restricted, and the clamping groove (384) is located on a movement route from the distal end of the medical anastomosis device (100) to the proximal end; and when the anastomosis device (100) returns to the initial status after being fired, the stop pin (542) is clamped in the clamping groove (384), and the safety block (38) limits the stop p

Abstract: A drive device and a valve including the drive device. The drive device senses the pressure of a working medium and generates a drive force to control the flow of the working medium. The drive device includes a sensing part with a chamber and a drive shaft. Vents and an air exhausting device are arranged on the chamber. The drive device and the valve including such a drive device can exhaust air entering the chamber along with the working medium out of the chamber by the vents on the chamber thereby optimizing the performance of the drive device and the valve and helping to keep the valve operating in a stable manner.

Abstract: The invention relates to a drive device and a valve comprising the drive device; the drive device senses the pressure of the working medium and generates the drive force to control the flow of the working medium; the drive device comprises a sensing part with a chamber and a drive shaft; vents and an air exhausting device are arranged on the chamber. The drive device and the valve comprising the drive device in the invention can exhaust air entering the chamber along the working medium out of the chamber by the vents on the chamber; and it optimizes the performance of the drive device and the valve and keeps the work stability.