Membrane puncturing aspirator with drainage shield

Details Membrane puncturing aspirator with drainage shield Membrane puncturing aspirator with drainage shield

1987-07-07

1989-02-28

Rosenbaum, C. Fred

Surgery

Truss

Pad

128329R, 604 45, 604 55, A61B 1742

Patent

active

048076252

ABSTRACT:
An obstetretic aspirator device for puncturing amniotic membranes and draining fluids therefrom comprising a funnel-shield (20) serving as a drainage cup and fluid confinement shield and puncture-type tubular aspirator (10) slideable mounted within an elongated shaft (24) of the funnel-shield for puncturing the amniotic membrane. The inner funnel wall (21) of the funnel-shield includes a plurality of suction ports (22) for draining fluids. A common vacuum source connected to the discharge end (18) of the tubular aspirator (10) communicates with both the tubular aspirator (10) and the funnel-shield (20) through the mating openings. The tubular aspirator (10) can be separated from the assembly for sole use as a conventional aspirator. The funnel-shield (20) comprises a pair of spaced apart superposed funnels walls (21 and 23) having a vacuum chamber (27) therebetween which chamber communicates with a vacuum chamber of the tubular aspirator through mating openings (19 and 25). In use, the funnel-shield is placed over the female peritoneal region and puncture-type tubular aspirator (10) is driven forwardly to puncture the amniotic sac whereby amniotic fluids are both confined to an area within the mouth of the funnel-shield and drained by the suction ports contained in the funnel-shield.

REFERENCES:
patent: 2195771 (1940-04-01), Estler
patent: 3096764 (1963-07-01), Uddenberg
patent: 3896810 (1975-07-01), Akiyama
patent: 4662376 (1987-05-01), Belanger
patent: 4692140 (1987-09-01), Olson

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