Vented needle with sideport

Details Vented needle with sideport Vented needle with sideport

1987-05-12

1988-11-29

Pellegrino, Stephen C.

Surgery

Container for blood or body treating material, or means used...

Having hollow needle or spike for piercing container or...

606405, 606126, A61M 500

Patent

active

047878983

ABSTRACT:
A vented needle with sideport comprising a main body housing having dual input ports at substantially right angles to each other. An integral needle structure having a central aperture therethrough being generally in the same axial alignment as one input port and transversely to the other port. A tubular sleeve around the projecting needle for providing a second fluid flow path externally thereof. The needle preferably has a longitudinal groove therein for increasing the fluid flow along the circumference of the needle. The device is designed so that the needle is longer than the tubular sleeve and, thus, air can be passed therethrough without danger of any air being inputted to the liquid flow of the shorter tubular sleeve liquid flow passageway. A hydrophobic air vent filter preferably is connected to the air input of the device.
The method of assembly of this vented needle with side port is also part of this invention.

REFERENCES:
patent: 3662752 (1972-05-01), Yokoyama
patent: 3797521 (1974-03-01), King
patent: 3938520 (1976-02-01), Scislowicz et al.
patent: 4211588 (1980-07-01), Raines
patent: 4596552 (1986-06-01), De Vries

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