Abstract: A device for holding a heparin lock secured to a catheter that has been previously disposed through a body portion and into an artery of a patient. The device has a cover having a wall constructed of generally flexible material. The wall includes a face having a continuous periphery and an aperture off-set from the continuous periphery. The wall additionally has a generally oval-shaped body integrally secured to the face along a substantial portion of the continuous periphery. The face and the oval-shaped body may include flanges secured at a lowermost portion thereof. The inside surface of the wall may be coated with a composition of matter that maintains the transparency of a transparent wall. The wall may also include one or more openings that are covered with one or more air permeable sheet members which are impenetrable by a liquid but allow vapor and moisture to pass through from the insides of the oval-shaped body when in a covering relation to a catheter in a body portion of a patient.

Abstract: A lock is provided for use in conjunction with a large volume storage tank of the type including an access opening having an outstanding peripheral flange extending thereabout and a pivoted cap swingable into and out of position closing said opening from the outer edges of said flange. The lock includes a mount stationarily mounted relative to the tank slightly outwardly of one marginal portion of the aforementioned peripheral flange and defining a recess opening outwardly of the mount in a direction generally paralleling the plane of the aforementioned opening. A locking body is provided including a first portion removably lengthwise telescopingly receivable in the recess and a second portion positioned in closely spaced overlying relation with the outer surface of the cap when the first portion is telescoped into the recess to thereby prevent swinging of the cap from the closed position toward the open position thereof.