Provided is an IV flow controller which adjusts the amount of an IV material supplied to a patient through an IV tube and to which a flushing feature is added. The IV controller according to the present invention includes: a first body unit, a second body unit, a fixed roller, and a driving roller. The fixed roller is fixedly and rotatably arranged, and has a first gear unit and a second gear unit. The driving roller is accommodated such that a portion thereof is exposed, and the driving roller is moved along the lengthwise direction while controlling the flow of the IV when the exposed portion is turned. Also, in the flushing position, the driving roller rotates in cooperation with the first gear unit of the fixed roller across the IV tube so as to flush the latter. The second gear unit of the fixed roller may be configured so as to have a ratchet gear, and the second body unit has a pawl which meshes with the ratchet gear of the fixed roller in order to prevent reverse rotation. According to the present invention, flushing in the reverse direction is prevented by the ratchet gear, and thus medical accidents caused by reverse flushing can be prevented.

A clamp for selectively compressing a portion of tubing, such as an extension leg of a PICC or other catheter, is disclosed. The clamp is able to be opened or closed with a thumb and finger of a single hand of a user and is slidably attached to the tubing so as to enable its placement as desired along the tube. In one embodiment, the tubing clamp comprises a body including first and second body portions hingedly connected to one another in a clamshell configuration, a latch for releasably latching the first and second body portions together, and at least two tube compression members. The tube compression members cooperate to compress and occlude a portion of tubing passing through the tubing clamp when the first and second body portions are latched to one another.

A precision roller clamp assembly for adjusting the fluid flow rate in a tube of an infusion set is provided. The roller clamp assembly includes a housing to receive the tube and a roller wheel moveably engaged with the housing. The housing includes a tube groove disposed in a guide wall, the tube groove dimensions configured to provide a precise fluid flow adjustment over a majority of the travel path of the roller wheel. A method of operating a precision roller clamp assembly is also provided.

Keep vein open (KVO) infusion flow control devices are provided. The KVO infusion flow control device couples to intravenous (IV) tubing and includes a flow controller that provides a full open fluid flow rate through an outlet portion of the IV tubing when the flow controller is in an open position, and a KVO fluid flow rate through the outlet portion of the IV tubing when the flow controller is in a KVO position. Visual indicators are disposed on the KVO infusion flow control device.

A circular roller clamp assembly includes a semi-circular housing configured to receive a portion of an IV tube and a roller coupled to an arm, the roller configured to be movably received by a guide groove disposed in the semi-circular housing. The roller clamp assembly is configured to regulate a flow rate of fluid flowing through the IV tube based on engagement of the roller with the IV tube via circumferential movement of the roller along the guide groove. IV sets with circular roller clamp assemblies and methods of operating circular roller clamp assemblies are also provided.

The present teachings may generally include a first fluid connector that includes a first body having a first central cavity that defines a first fluid pathway and a first seal within the first central cavity. The first seal includes a pair of first interfacing elements positioned adjacent one another at a distal end of the first seal and a first opening configured to remain sealed closed when the first interfacing elements are adjacent, and the first opening opens when the first interfacing elements are separated. The first connector is configured to fluidly connect to a second connector by engaging the first interfacing elements and with a pair of second interfacing elements of the second connector, thereby causing both pairs of first and second interfacing elements to separate causing the opening of first opening and second opening.

Keep vein open (KVO) infusion flow control devices are provided to include a full flow tube coupled at one end to an inlet tube connector and coupled at another end to an outlet tube connector, a KVO flow tube coupled at one end to the inlet tube connector and coupled at another end to the outlet tube connector, and a flow controller coupled to the full flow tube, wherein the KVO flow tube is configured to always provide some fluid flow. Additional KVO infusion control devices are also provided.

Flow controllers for intravenous (IV) tubing are provided. A flow controller may include a first structural member comprising a first outer surface and a first inner surface disposed at an angle to the first outer surface, a second structural member comprising a second outer surface parallel to the first outer surface and a second continuous inner surface parallel to the first inner surface, and a third structural member disposed on one of the first or second structural member and having a friction-reducing surface for at least a portion of a cavity disposed between the first and second structural members. The first structural member is linearly slidable along a length of the IV tubing disposed in the cavity to compress a portion of the IV tubing to control flow of a medical fluid through the IV tubing. Other flow controllers and IV sets that include a flow controller are also provided.

An apparatus for shunting blood includes a flow-indication chamber shaped to define an entry port and an exit port, and one or more moveable objects disposed within the flow-indication chamber and configured to move in response to a flowing of the blood from the entry port to the exit port. At least a portion of a wall of the flow-indication chamber is transparent so as to expose the moveable objects to sight. Other embodiments are also described.

A clamp assembly for adjusting the fluid flow rate in an infusion set is provided. The clamp assembly includes a housing having two opposing side walls spaced apart from each other and having opposing guide grooves, a guide wall disposed between the side walls, an elastomeric segment disposed between the two opposing side walls and the guide wall, the elastomeric segment having a lower compression set performance that the compression set performance of first and second IV tubes of the infusion set, and first and second tubing ports. A flow-regulating member is seated in the guide grooves and is configured to remain in a set position during use of the infusion set based on the compression set performance of the elastomeric segment until the roller wheel is moved by a user. A method of operating a clamp assembly is also provided.