Instrument for inserting a cannula into a vein has chamber with rocking retaining element to deflect tip of extracted needle

摘要

An instrument for inserting a cannula in the form of a short tubular catheter (1) attached to a base (2) and a cage (5) with a trap for a sliding needle (3) having a rocking retaining element (6) with a claw (6a) that prevents the needle being withdrawn before the cage is separated from the base, is new. An instrument for inserting a cannula in the form of a short tubular catheter (1) attached to a base (2) and a cage (5) with a trap for a sliding needle (3) having a rocking retaining element (6) with a claw (6a) that prevents the needle being withdrawn before the cage is separated from the base, is new. The other end of the retaining element has a nose (6b) that goes into the cage to deflect the tip of the needle once it has been withdrawn, preventing it from projecting from the cage. The node is held in place in the cage by a flexible tongue (6d).