Intravenous catheter and insertion device with reduced blood spatter
AssigneeVascular Pathways, Inc.
InventorAmir Belson
Life of this patent
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Abstract
An venous access catheter is combined with a needle, guidewire, and actuator where the needle is disposed coaxially over the guidewire and the catheter is disposed coaxially over the needle. A hub at a proximal end of the access catheter includes a wiping element to clean blood from the needle and guidewire as they are removed and a side port to allow connection of fluids after the access catheter is placed.
Claims8
A method for inserting a catheter into a patient, said method comprising:
- providing a catheter insertion device including an outer housing, a tubular access needle attached to a needle carrier that is slidable with respect to said outer housing, a tubular catheter having a hub detachably attached at a distal end of said outer housing and positioned coaxially around said tubular access needle, and a safety guidewire having a preformed coil tip and being sized and configured to be advanced through said tubular access needle;
- inserting a distal end of said tubular access needle into the patient;
- actuating said actuator mechanism to advance said safety guidewire out through said tubular access needle in a distal direction so that said tip assumes the coil confi;
- advancing a distal end of said tubular catheter over the guidewire into the patient;
- and
- actuating said actuator mechanism to withdraw said safety guidewire and said tubular access needle through the catheter in a proximal direction;
- wherein said coil tip straightens as it is pulled through the catheter and recoils in a chamber prior to being pulled through a wiping element to remove blood prior to being removed from the catheter.
The method of claim 11, wherein, actuating said actuator mechanism releases a compressed spring disposed coaxially over the tubular catheter and the safety guidewire to engage the needle carrier to withdraw the needle and the guidewire from the catheter.
Dependencies are inferred from the claim text.