Smiths Industries Plc

David E Cross

A connector for medico-surgical tubing has a plastics body with a male Luer tapered forward portion that is shaped for engagement with a coupling member having a cooperating Luer tapered bore. The body has a rear portion of prismatic shape and square cross-section that is embraced by a square aperture in a rear flange of a locking ring. The locking ring has a cylindrical portion which extends axially of the connector and which has an internal screw thread for engaging cooperating projections on the coupling member. The locking ring is thereby free to slide axially along the prismatic portion of the connector body but is prevented from rotation relative to it. The rear of the Luer tapered portion projects above the surface of the prismatic portion to limit forward displacement of the locking ring.

Connectors

Medical airway tube separator or the like

Liquid-measuring apparatus for measuring the drainage of urine from a patient comprises a measuring cylinder and a bag which is of substantially larger capacity than the cylinder and is situated beneath the cylinder. Tubing extends downwardly to the bag from within a compartment of the cylinder, the compartment being formed by an additional tube which is closed at its upper end and perforated near its lower end. The cylinder is vented to ambient atmospheric pressure above the level of the upper end of the tubing connected to the bag. Every time urine collected in the cylinder reaches this level, an automatic siphon action drains a predetermined quantity of the urine from the cylinder, through the compartment and the tubing, into the bag. The total quantity of urine drained from the patient can be measured at any time by means of a coarse reading taken from the bag and a fine reading taken from the cylinder.

Growing community of inventors

Folkestone, United Kingdom

David E Cross