Abstract: An improved connector apparatus for medical tubing includes a connector body, a tubing connector, a press ring or collar, and an articulating body/collar linkage. The body can be made as a male, female, or any other type of fitting or connector.

Abstract: A pressure transducer for measuring the pressure of a fluid, in particular for invasive blood pressure measurements, comprises a housing with two chambers that are separated from one another in a fluid-proof fashion, whereby the first chamber accommodates a pressure transducer that is fastened onto a substrate and may be charged with the pressure of the fluid to be measured. The substrate lies in both chambers and has contact surfaces for the direct connection of an electric plug-in connector within the region of the second chamber. This plug-in connector comprises parallel tongues between which the substrate and a housing cover may be accommodated. One of the tongues carries electric spring contacts.

Abstract: An intercranial pressure sensor assembly has a sensor at one end of an electrical cable. At its other end, the cable has a low profile coupling with annular contact members spaced axially along its length. A guide of a plastics material has an attachment with a tapering surface at one end from which extends a flexible lead. The guide is screwed to the coupling by means of an internal thread on the attachment and is used to pull the cable beneath tissue on the scalp. After the sensor is correctly positioned, the guide is removed and the coupling can be connected to a monitor.

Abstract: A blood sampling apparatus includes a housing (1) closed off by a rotatable cover (4), which in turn seals off the housing completely with a seal (7). The cover has a threaded sleeve (9), which cooperates with a piston rod for axial displacement of a piston (2). The housing cover has an opening closed off by a sterile filter (11). When the piston (2) is displaced, this piston rod always remains completely inside the housing (1), so that no bacteria, other kinds of germs or any other kind of contamination can penetrate the housing from the outside (FIG. 1).

Abstract: The damper for pressure measuring systems is integrated in the body (5) or insert of a valve. Flow passages (6, 7) communicate with a compartment (9) which is sealed by a rubber-elastic diaphragm (10). The side of the diaphragm remote from said compartment (9) defines a second compartment (13) which is connected to atmosphere through a port (14) designed to provide flow resistance.

Abstract: A metering device for adjusting a flow rate of a flow of liquid comprises a flow-rate adjusting device including a rotatable adjusting member, and an actuating member for rotating the adjusting member. The actuating member is connectable with the adjusting member and may be disengaged therefrom in a respective adjusted position in order to avoid unintentional or incomplete adjustment of the metering device. A hexagonal head and a mating hexagonal recess are provided on either the adjusting member or the actuating member to effect engaging and disengaging of these members.

Abstract: In a pressure meter catheter which carries a pressure sensor in its measuring tip a reference pressure is admitted to effect zero setting in accordance with the invention while the instrument is in situ during a measurement, the reference pressure permitting adjustment of an evaluating unit at a remote location. Preferably, the measuring tip is surrounded in sealing fashion by a balloon which can be inflated through the line in the catheter tube through which atmospheric pressure is applied to the sensor as reference pressure for the measurement. Thus the same pressure is available both at the measuring connection and at the reference connection of the sensor, and the pressure differential measured by the sensor consequently is exactly zero.

Abstract: A flow control device for use with flowing fluids to monitor pressure during blood pressure measurements having at least one passage extending from an inlet to an outlet. This passage has two flow paths, one a non-closable, narrow flow path including a capillary bore for normal flow. The other is a flushing chamber having a larger crossectional opening which is closable by a rapid flush valve. The rapid flush valve includes a valve body made of elastically deformable material and disposed in the flushing chamber. The valve body may be stretched by a plunger which thereby reduces its crossection. In the normal position, the outside of the valve body contacts the wall of the flushing chamber and blocks the flow path through the chamber. If the plunger is depressed, the valve body is deformed elastically, elongating it to thereby reduce its crossection and spacing it from the walls of the flushing chamber. This opens the flow path through the flushing chamber.