A dental valve device is disclosed having a valve body having a tip receiving end, a hose receiving end, a lumen formed between the tip receiving end and the hose receiving end, a partial opening formed in the valve body, and a rotatable valve sealing body adapted to being inserted into the partial opening, the rotatable valve sealing body having a bottom having an opening, a bore for alignment with the lumen formed between the tip receiving end and the hose receiving end, the bore having a tip receiving opening and a hose receiving opening, the rotatable valve sealing body having a check valve positioned in the bore and the opening in the bottom.

A tubing assembly for use with a fluid delivery system has a first fluid line having a distal end and a proximal end for connecting to a first fluid source, and a second fluid line having a distal end and a proximal end for connecting to a second fluid source. The tubing assembly further has a third fluid line having a distal end and a proximal end, and a connector assembly for connecting the distal end of the first fluid line and the distal end of the second fluid line to the proximal end of the third fluid line. A tubing holder receives at least a portion of the third fluid line. The tubing holder has a first portion and a second portion movable relative to the first portion to selectively block fluid flow through the third fluid line.

A one way valve for a biological flow passage includes an elongated braided structure sized for insertion in the biological flow passage, a portion of the braided structure forming a substantially tubular shell, the braided structure maintaining an expanded operative shape after being deformed to a small dimension; a non-porous coating of the braided structure; a constricted portion of the elongated braided structure disposed between a proximal end and a distal end thereof, the constricted portion closing off a channel of the braided structure and defining at least one funnel shaped region of the braided structure to prevent flow towards the distal end; at least one hole formed in the non-porous coating, permitting a flow of one of air and fluid towards the proximal end; and an anchoring portion to retain the one way valve in a selected location within the biological flow passage.

A breath actuated metered dose inhaler may comprise a canister fire system configured to fire a medicament containing canister in response to patient inhalation. The canister fire system may comprise a pneumatic force holding unit and having a rest configuration in which a metering valve of the canister is in a refill configuration; a prepared configuration in which a canister actuation force is retained by the pneumatic force holding unit and the canister fire system is actuatable by patient inhalation induced airflow; and a fire configuration in which the metering valve is in a dose delivery position. When in the prepared configuration, the force retained by the pneumatic force holding unit may be reduced by less than about 6% over a period of 5 minutes, preferably less than about 3% over a period of 5 minutes.

Methods and devices for accurately pumping small quantities of liquid to a patient with a broad range of flow and low cost.

A flow regulator for a blood collection assembly includes a housing having an inlet and an outlet, which defines an interior space between the inlet and the outlet. A membrane having a first surface and a second surface is disposed at least partially within the interior space. The membrane has a first position where a flow path between the inlet and the outlet is substantially open, and a second position where the flow path between the inlet and the outlet is at least partially restricted. The membrane is configured to move between the first and second positions in response to a pressure differential acting on the membrane.

A medical connector can include a body having a fluid path with an inlet port, an outlet port, a luer portion, and a post extending through a fluid path. An arm having a latch member is coupled to the body to engage a ridge or thread on an exterior surface of a reciprocal connector. The arm may also include an extension. When the connector is in an open position, the latch member restricts retraction of the reciprocal connector from the outlet port. A seal is coupled to the body and includes a flap extending across the outlet port or a bellows to compress along an axis. In a closed position, the post restricts flow through the luer portion. In an open position, the post permits flow through the luer portion.

A flow control device includes a housing having a primary valve body defining a primary inlet and an outlet, a secondary valve body defining a secondary inlet and a chamber defined by an inner circumferential surface of the housing and fluidly connecting the primary and secondary inlets with the outlet. The primary and secondary inlets share a common central axis perpendicularly disposed to a central axis of the outlet. A valve member is reciprocally mounted in the chamber to block fluid communication between the secondary inlet and the outlet when fluid pressure into the primary inlet is higher than fluid pressure into the secondary inlet, and block fluid communication between the primary inlet and the outlet when fluid pressure into the secondary inlet is higher than fluid pressure into the primary inlet.

A catheter assembly is provided with a catheter, a catheter hub, and a valve body (medical valve) provided in the catheter hub. The valve body includes a hollow main body provided with a distal end surface and a fixing portion for fixing the valve body to the catheter hub. At least a part of an outer peripheral surface and at least a part of an inner peripheral surface of the main body are inclined with respect to a central axis of the valve body. The main body of the valve body includes a distal end slit provided on the distal end surface and a side slit provided on the outer peripheral surface of the main body and continuously extending from the distal end slit.

A flow control device includes a housing having a primary inlet, a primary outlet, a secondary inlet, and a secondary outlet, a chamber defined by an inner circumferential surface of the housing, the chamber extending between the primary and secondary inlets for fluidly connecting the primary inlet with the primary outlet and the secondary inlet with the secondary outlet, and a valve member reciprocally mounted in the chamber to block fluid communication between one of the primary/secondary inlet/outlet when fluid pressure into the other of the primary/secondary inlet/outlet is higher. One of primary/secondary inlet sealing surfaces of the valve member having a planar profile and the other having a non-planar profile, or one of primary/secondary sealing surfaces of the housing having a planar profile and the other having a non-planar profile.