초록 ▼

A method and device for use in delivering or withdrawing fluid to or from the vascular system of bone marrow, wherein a tubular conduit is inserted into bone and fluid is delivered or withdrawn to or from a reservoir through a seal means surrounding a head attached to one end of the conduit in commu

A method and device for use in delivering or withdrawing fluid to or from the vascular system of bone marrow, wherein a tubular conduit is inserted into bone and fluid is delivered or withdrawn to or from a reservoir through a seal means surrounding a head attached to one end of the conduit in communication with bone marrow at the opposite end of the conduit. Access to bone marrow is achieved by implanting an improved intramedullary catheter of the present device within a bone and creating a reusable passage via a conduit placed between bone marrow and the outer surface of bone or skin.

대표청구항 ▼

[ What is claimed is:] [23.]23. A combination comprising:a drill bit including:an elongated cutting shaft adapted for creating a bore within a bone;a cutting tip coupled to a distal end of the cutting shaft and adapted for piercing the bone; anda countersink coupled to a proximal end of the cutting

[ What is claimed is:] [23.]23. A combination comprising:a drill bit including:an elongated cutting shaft adapted for creating a bore within a bone;a cutting tip coupled to a distal end of the cutting shaft and adapted for piercing the bone; anda countersink coupled to a proximal end of the cutting shaft for creating a cavity adjacent the bore; anda device including:an elongated tubular conduit configured for insertion into the bore and adapted for providing fluid access to bone marrow;a head attached to a proximal end of the conduit and having a shape complimentary to the cavity; anda membrane attached to the head and configured for repeated reception of a needle.