Ergonomic vascular access needle

Details Ergonomic vascular access needle Ergonomic vascular access needle

A - Human Necessities

61

M

A61M 5/32 (2006.01) A61M 5/158 (2006.01)

Patent

CA 2096313

ERGONOMIC VASCULAR ACCESS NEEDLE ABSTRACT An ergonomic vascular access needle (10) is provided which has a transparent body (20) having an extended and small diameter capillary lumen (22) through which blood may be observed. The extended capillary lumen (22) is in fluid communication on opposing ends with a variable volume chamber (25) and a needle lumen (32). A movable plunger (40) within the transparent body (20) is displaceable to create the variable volume chamber (25). The distal end of the needle (30) is then pushed through the patient's skin and the plunger (40) is displaced from a forward position to create a suction within the capillary lumen (22), the needle lumen (32) and the variable volume chamber (25). The needle (30) is then advanced until the needle distal opening (33) is within the venous lumen and blood is observable in the capillary lumen (22). A guide wire (50) is then advanced through a lumen (42) of the plunger (40) which causes a plug (47) to be pushed into the variable volume chamber (25) and a guide wire (50) is then advanced into the venous lumen. In this manner, the guide wire (50) may be inserted into the venous lumen without external squirting of blood.

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