A clamp includes a fixed portion on which a medical tube is placed, a movable portion that is provided above the fixed portion to face the fixed portion, and a closing portion that presses and closes the medical tube when the movable portion is pressed toward the fixed portion. The closing portion includes a presser that protrudes from the movable portion toward the fixed portion and presses the medical tube, a pair of sidewalls that extends, like a wall, from both sides of the fixed portion and prevents the medical tube from being shifted laterally, and a guide structure that allows the presser to be guided between the sidewalls.

Pinch clamps are provided which generate positive displacement while also preventing rebound. To prevent rebound while providing positive displacement, the upper and lower clamping surfaces may be configured to form a pinch profile along which the tubing is compressed with the pinch point being formed at the distal end of the pinch profile. To further prevent rebound, the lower arm of the pinch clamp can include blocking ribs that interface with the upper clamping surface to prevent distal travelling of the pinch point even if the upper arm is forced into an over-engaged position.

A tube holder includes a tube clamp having a housing and a clamping mechanism. The housing has a tube entry along a major surface thereof. A first tube passageway extends from the tube entry into the housing, and a tube receiving channel is coupled to the first tube passageway. The clamping mechanism comprises a lever handle user operable to transition from a first position to a second position. A gate is coupled to the lever handle, and a tube pinch is coupled to the lever handle. When a tube is peripherally inserted into the tube receiving channel and the lever handle of the clamping mechanism is in the second position, the gate prevents the tube from exiting the housing via the first tube passageway, and the tube pinch pinches the tube so as to prevent a flow of a fluid through the tube.

A housing having a housing body (100) carries on the outside of one of the side walls (110) a bolt (500) aligned parallel to the lid guide grooves (120) and the lid (200) carries a sleeve (222) fixed to a tab (220) projecting over the upper edge of the corresponding side wall (110) of the housing body (100) and aligned coaxially with the bolt (500). The sleeve (222) engages around the bolt (500) to form an axially and rotationally movable sliding bearing.

A pinch valve having a clamping member (300) mounted between two side walls (110) of a valve housing, the side walls extending parallel to a hose guide axis and to a plunger guide axis. Each of the side walls has a step (112) extending parallel to the hose guide axis and recessing with respect to the advancing direction of the plunger. The clamping jaws (320) of the pinch valve, upon displacement of the clamping member (300), move over the steps (112) with their outer sides, which face away from the hose guide, bearing against the side walls (110).

A blood bag system includes a clamp installed in a flexible first tube. The clamp includes: a base section having a protrusion section, an opening/closing section having a pressing protrusion section that presses a side surface of the first tube, and a bent section that connects the base section and opening/closing section. The base section is provided with a pair of cutout sections opened to a side surface where the first tube can be inserted by interposing the protrusion section. The clamp is configured such that a portion of the first tube where the clamp is installed is bent while the clamp is released.

A valve for a layflat polypipe irrigation tubing valve including a base pivotally supporting two arms with adjustment apertures selectively connected by a cross pin to adjustably control flow in the irrigation tubing from an unrestricted flow position through a plurality of finely adjustable restricted flow positions to a fully restricted flow position while providing a distally identifiable visual indicator of the valve position.

A system is described herein that can irrigate a tissue site using negative-pressure. The system may include a tissue interface configured to be placed adjacent to the tissue site, and a sealing member configured to be placed over the tissue interface to form a sealed space. The system may also include a negative-pressure source configured to be fluidly coupled to the sealed space and a fluid source. The system may further include an irrigation valve. The irrigation valve can have a fluid inlet configured to be fluidly coupled to the fluid source. The irrigation valve can also have a fluid outlet configured to be fluidly coupled to the sealed space. The irrigation valve may also include a clamp configured to be actuated by the negative-pressure source to regulate fluid flow from the fluid source through the fluid outlet.

A multi-tubing pinch valve assembly including a receiving space defined between a pinch protrusion and tubing contact body. The multi-tubing pinch valve assembly is moveable between a retracted state and an extended state. In the extended state, multiple tubes disposed in the receiving space are pinched, restricting flow therethrough. In the retracted state, multiple tubes are capable of being loaded into and/or out of the receiving space.

The pinch clamp has a ratchet mechanism for selectively securing two jaw assemblies of the pinch clamp together. The ratchet mechanism includes a ratchet with a plurality of notches fixedly mounted on an end of one jaw assembly and a pawl member integrally mounted on an end of the other jaw assembly for selectively engaging in one of the notches of the ratchet. A finger release portion extends integrally from the pawl member for moving the pawl member from engagement with the ratchet.