초록 ▼

The invention relates generally to an improved catheter insertion device of the type having a drum-like receptacle which advances the catheter when it is rotated relative to the base, causing the catheter to move through a tubular outlet. The improvement comprises a removable needle which extends co

The invention relates generally to an improved catheter insertion device of the type having a drum-like receptacle which advances the catheter when it is rotated relative to the base, causing the catheter to move through a tubular outlet. The improvement comprises a removable needle which extends coaxially through a tubular housing tangentially affixed to the dispenser. A flexible cannula telescopically surrounds the distal portion of the needle. The cannula is connected to a catheter outlet from the receptacle and is adapted to be inserted into the vein of a patient during venipuncture. Once venipuncture is performed, the needle is slidably removed from the cannula and catheter outlet, and the catheter is telescopically inserted into and through the cannula and thereby into the vein of the patient. The base and receptacle may then be easily separated and removed from the catheter.

대표청구항 ▼

An improved catheter insertion device comprising: a catheter dispenser having a base with a catheter outlet extending therefrom and a catheter receptacle including an outwardly facing wall for receiving a catheter therewithin, the dispenser including means engaging the base and receptacle in rotatin

An improved catheter insertion device comprising: a catheter dispenser having a base with a catheter outlet extending therefrom and a catheter receptacle including an outwardly facing wall for receiving a catheter therewithin, the dispenser including means engaging the base and receptacle in rotating relation, said catheter being in mechanical engagement with said catheter receptacle whereby rotation of said catheter receptacle relative to said base causes said catheter to be threadably moved through said outlet; a tubular housing having an axial bore therethrough tangentially extending from said catheter dispenser in coaxial alignment with said catheter outlet; elongate piercing means having a sharpened tip, coaxially disposed through said tubular housing and extending through and beyond said catheter outlet for the performance of venipuncture; a hub member affixed to the proximal end of said elongate piercing means constructed and arranged for mating engagement with the distal end of said tubular housing, facilitating the slidable removal of said elongate piercing means from said catheter dispenser; and a cannula member generally contiguously and telescopically surrounding the distal portion of said elongate piercing means and extending beyond said catheter outlet proximate to said sharpened tip, the proximal end of said cannula being in fluid-tight connection to said catheter outlet; said cannula being operatively associated with said elongate piercing means in performing said venipuncture; whereupon following said venipuncture, said elongate piercing means may be slidably removed from said cannula and said catheter outlet and said catheter thereupon telescopically inserted into and through said catheter outlet and cannula and into the vein of the patient.