Aeros Instruments, Inc.

The Boc Group, Inc., Ohmeda Division

Gordon D Martin

Douglas D Carden

Colin Hodge

A medical vacuum regulator (10) with a vacuum regulation chamber (20, 34) connected with a supply of unregulated vacuum (26) through a regulation control valve seat opening (24A) controlled by means of a valve head (28, 28A) at one end of a valve stem (30) extending through a valve stem guide (32) and coupled at its opposite end to a movable wall (36, 38) of the regulation chamber (20, 34) is provided with an antibinding valve stem connector assembly (12) comprising a ball and socket connector (46, 48) respectively coupled to the valve stem (30) and the movable wall (36, 38) to enable relative movement between the valve stem guide (32) and valve stem (30).

Vacuum regulator with antibinding valve stem connector assembly and

A vacuum regulating cartridge (10) having a roller diaphragm (52), a coil spring (54) and a cantilevered spring arm (68) to form a regulation system for regulating vacuum in a medical regulating vacuum controller (26).

Medical vacuum regulating cartridge

A disposable cap and float assembly for a drainage container or receiver in a vacuum system for receiving drainage from the body of a patient after wounding of or surgery performed on the patient or for other liquid withdrawal procedures. The assembly includes a bifurcated bracket mountable on a wall or in a floor stand and which removably retains the drainage receiver in the vertical direction. A cap for sealing the drainage receiver is vertically downwardly disposed over the top of the drainage receiver while retained in the bifurcations of the bracket for horizontally retaining the drainage receiver between the bifurcations of the bracket. The cap is snap fit over the bracket to retain the cap to the bracket and hold the receiver or container in the bracket. A float closes a vacuum passage in the cap when the receiver is filled, preventing the suction of drainage into the vacuum system.

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Palatine, IL, United States of America

Gordon D Martin