초록 ▼

A pre-slit injection site (34) includes a housing (40) with a flow path therethrough. A first end (42) of the housing (40) carries a pre-slit septum (52). One form of a blunt cannula (98), usable with the injection site (34), carries a locking member (100). When the pre-slit injection site (34) slid

A pre-slit injection site (34) includes a housing (40) with a flow path therethrough. A first end (42) of the housing (40) carries a pre-slit septum (52). One form of a blunt cannula (98), usable with the injection site (34), carries a locking member (100). When the pre-slit injection site (34) slidably receives the blunt cannula (98), the locking member (100) latches to the injection site (34) and creates a mechanically coupled unit. Another form of the cannula (280) includes a tube having a tapered distal end region (298) and having elongate discharge slots (294) for reducing contact surface area and for directing the flow laterally out of the cannula. The cannula may also include a rounded lead post (330), an annular barb (394), and axially oriented grooves (268).

대표청구항 ▼

[ What is claimed is:] [1.]1. A heparin lock for establishing a connection with various types of blunt cannula devices having an engaging element or gripping fingers the heparin lock comprising:a generally tubular housing forming a passageway and having a rearward outlet end portion configured to es

[ What is claimed is:] [1.]1. A heparin lock for establishing a connection with various types of blunt cannula devices having an engaging element or gripping fingers the heparin lock comprising:a generally tubular housing forming a passageway and having a rearward outlet end portion configured to establish a connection with a female luer connection, the housing also having a forward inlet end portion, the inlet end portion including a generally radially extending surface for engagement with gripping fingers of a blunt cannula device, an exterior surface of the housing extending between the radially extending surface and a forward end of the housing being configured to establish an engagement with an engaging element of a blunt cannula device; anda septum disposed within the inlet end portion of the housing and having an outer surface adjacent the forward end of the housing and defining a slit, the housing compressing the septum such that the blunt cannula can be inserted through the slit and removed and the septum seals about the cannula during the insertion and after the removal of the blunt cannula element.