Hypodermic syringe for stabilized aspiration by one hand

Surgery – Respiratory method or device – Ozone or ion generation

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128218P, A61M 500

Patent

active

039904466

ABSTRACT:
A disposable hypodermic syringe for aspiration comprising a cylindrical thermoplastic barrel partially closed at one end and open at an opposite end on which two flat transverse barrel flanges extend in opposite directions to stabilize the syringe. At the partially closed end is an adaptor to facilitate connecting a needle assembly. The barrel length is approximately twice the length of the plunger and stopper coupled together and axially slideable to and fro completely within the barrel. The end of the plunger shaft opposite the stopper end consists of a flat plate with two plunger finger flanges attached thereto. Both plunger finger flanges branch perpendicularly outward from the plate through opposing apertures cut through the lateral walls of the syringe barrel. The two opposing apertures are rectanguler in shape and extend from a midpoint on the barrel to a point spaced just below the largest open end. The widths of both barrel apertures align with the widths of both barrel flanges. Before aspiration the plunger stopper rests against the partially closed end of the barrel in which position the two plunger finger flanges protrude outward through the barrel apertures near the midpoint of the barrels length. Aspiration by one hand is accomplished when the plunger finger flanges are drawn toward the barrel flanges while the barrel flanges are stabilized against movement.

REFERENCES:
patent: 1540125 (1925-06-01), Hein
patent: 3016896 (1962-01-01), Van Sickle
patent: 3336924 (1967-08-01), Sarnoff et al.
patent: 3348546 (1967-10-01), Roberts et al.
patent: 3583399 (1971-06-01), Ritsky
patent: 3758006 (1973-09-01), Gravlee

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