Method and apparatus for starting intravenous solutions

Details Method and apparatus for starting intravenous solutions Method and apparatus for starting intravenous solutions

1988-06-09

1990-02-27

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604167, 604168, A61M 500

Patent

active

049042408

ABSTRACT:
A method and apparatus for starting and feeding intravenous solutions through a catheter is disclosed comprising two chambers in tandem, the first chamber having a catheter attached to one end, a resealing port opposite the catheter and a permanent tube port for receiving intravenous solutions into the first chamber, and the second chamber, or flash chamber, having a long hollow needle at one end, inserted through the resealing port and catheter of the first chamber, and a squeeze bulb at the other end for urging a sample of blood through the needle into the flash chamber to signal that a blood vessel has been penetrated. To place the catheter in a blood vessel, the intravenous solution is connected to the tube port of the first chamber, the bulb is squeezed, then the needle carrying the catheter is pushed into the skin and the squeezed bulb released. Blood flashes into the flash chamber, urged by the vacuum created by the released squeeze bulb, as the needle enters a blood vessel. Then the catheter is pushed forward into the blood vessel as the flash chamber is held in place so that the needle backs in sequence through the chamber, the first chamber and the resealing port. The needle, flash chamber with bulb and blood sample, are then discarded in an appropriate receptacle. The intravenous solution is turned on at the appropriate rate and the apparatus is secured in place.

REFERENCES:
patent: 4108175 (1978-08-01), Orton
patent: 4269186 (1981-05-01), Loveless et al.
patent: 4317445 (1982-03-01), Robinson
patent: 4338934 (1982-07-01), Spademan
patent: 4772264 (1988-09-01), Cragg

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