Abstract: A needle receptacle is provided for use with needle assemblies typically used in blood banks. The needle assemblies of the type concerned here have a needle mount with a forward end and a rearward end, a needle extending from the forward end of the needle mount and a flexible tube extending from the rearward end of the needle mount that connects the needle assembly in fluid-flow connection with a blood collection bag. The needle receptacle has an elongated hollow body with a front end and a rear end. The front end is open and sufficiently sized to permit the needle mount to pass axially through it. The rear end has a bore formed in it. The bore is sufficiently sized to permit the tube to pass axially through it, but too small to permit passage of the needle mount. There is also an opening formed in the body between the front end and the rear end for receiving the needle mount and the needle so that the hollow body can be slidably mounted onto the needle assembly.

Abstract: A needle receptacle is provided for use with needle assemblies typically used in blood banks. The needle assemblies of the type concerned here have a needle mount with a forward end and a rearward end, a needle extending from the forward end of the needle mount and a flexible tube extending from the rearward end of the needle mount that connects the needle assembly in fluid-flow connection with a blood collection bag. The needle receptacle has an elongated hollow body with a front end and a rear end. The front end is open and sufficiently sized to permit the needle mount to pass axially through it. The rear end has a bore formed in it. The bore is sufficiently sized to permit the tube to pass axially through it, but too small to permit passage of the needle mount. There is also an opening formed in the body between the front end and the rear end for receiving the needle mount and the needle so that the hollow body can be slidably mounted onto the needle assembly.

Abstract: A signal apparatus comprising a post-mountable arm adapted at one end to be mounted on a vertical stand post and having provided at the other end thereof a bell adapted to be struck by a counter-weight mounted on one end of a balance beam when blood reaches a predetermined level in a blood collection bag hung from the other end of the balance beam which is mounted on the said post below the said arm, and a hook adapted to receive a second bag removably hung thereon.