INTRAVENOUS CATHETER INSERTION DEVICE AND METHOD OF USE

摘要

A catheter insertion device with a housing and an interior space. An access needle and a guide wire supported by and moveable relative to the access needle. A restraining element attached to a handle to limit the motion of the guide wire relative to the access needle. A catheter insertion device with a housing and an interior space. An access needle and a guide wire channel attached to the access needle. A guide wire supported by the guide wire channel. A handle attached to the guide wire to move the guide wire relative to the guide wire support channel. A method of introducing a catheter into a vessel by inserting a guide wire substantially contained within a housing into a vessel. Next, advance a catheter over the guide wire and into the vessel. Next, withdraw the guide wire out of the vessel and completely into the housing.

主权项

1. A method for accessing a blood vessel lumen, said method comprising:
providing a catheter insertion device having an access needle, a catheter disposed coaxially over the access needle and a guidewire disposed in a lumen of the access needle and having a distal tip preformed into a planar coil; advancing the needle through a patient's skin to position a distal tip of the needle in a lumen of the blood vessel; advancing the guidewire from the distal end of the needle into the blood vessel lumen, wherein the distal tip of the guidewire is maintained in a straightened configuration in the access needle and recovers a planar coil configuration in the blood vessel lumen; advancing the guidewire from the access needle within the blood vessel lumen, wherein the planar coil inhibits puncturing or damaging the blood vessel wall as the guidewire is advanced; and advancing the catheter over the guidewire.