Circulatory system access preservation system

Details Circulatory system access preservation system Circulatory system access preservation system

2005-08-19

2011-10-04

Stigell, Theodore (Department: 3767)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

Reexamination Certificate

active

08029471

ABSTRACT:
An access device is disclosed that comprises two main assemblies. The first assembly is the cylindrical cannulation assembly. This is the needle-point-bearing assembly which facilitates cannulation (i.e., insertion of the assembly into the arm of the patient). The cylindrical cannulation assembly comprises a cannulation cylinder which has an insertion point (i.e., the needle puncture point) at a first end. The second main assembly of the invention is the cylindrical conduit assembly. This is the assembly that facilitates fluid flow during treatment free of the worry that the very needle which facilitated access will internally lacerate the blood vessel. The cylindrical conduit assembly comprises a cylindrical conduit which is telescopically positioned within the cannulation cylinder. The cannulation cylinder and cylindrical conduit longitudinally move relative to one another.

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