Abstract: A hose clamp, which may be completely made of plastic, comprises two clamping stirrups which can be anchored in clamping position by interaction of a tongue on one stirrup and a toothed section of the other stirrup. The hose to be clamped can either extend through coaxial openings of the clamping stirrups or be introduced between the stirrups from the side. In the first case, the clamp can only be removed over a free end of the hose while, in the second case, the clamp can be positioned at any point along the hose as desired.

Abstract: The assembly comprises a blood collection vessel, a flexible tube removably connected to the collection vessel and a flow control mechanism for regulating the flow of liquid into or out of the collection vessel. One of the shaped sections of the collection vessel has a size effective to be grasped by the hand of an operator. Inlet and outlet means are disposed at opposite ends of the vessel so that blood may be introduced into the vessel at one end and discharged at the other end when desiring to place the blood back into the person. Other specific features of the invention include the particular structural configuration of the flow control mechanism the disposition of a flexible tube between the flow control mechanism and the collection vessel and other features of the collection vessel.

Abstract: An apparatus for sucking blood out of body cavities blood collecting vessel is at one end connected via a flexible line to a source of vacuum, and, at the other provided integrally with a suction tube. The lower portion of the suction tube includes suction orifices and projects into a basket acting as a filter carrier. This basket includes a series of suction slots located only in the lower part of the wall of the basket to avoid aspiration of air. On its outer surface, the basket is surrounded by a filter fabric which is fixed in an annular groove. Structures alternative to the basket are also disclosed.