Surgery – Instruments – External pressure applicator
Patent
1995-11-21
1997-09-02
Buiz, Michael
Surgery
Instruments
External pressure applicator
604313, 604316, A61B 1700
Patent
active
056626770
ABSTRACT:
A cupping instrument comprises a vacuum cup integrally comprising an outlet hole at one end thereof, an annular socket concentrically surrounding the outlet hole, and a cylindrical tubular extension extending from the one end and surrounding the outlet hole and the annular socket. A suction valve for opening and closing the outlet hole is disposed in the annular socket and comprises a sealing disk, a centrally disposed die-cut valve disk, an annular outer portion surrounding the valve disk, and at least one bridge integrally connecting the annular outer portion to the valve disk. An aspirator is connected to the vacuum cup, the aspirator comprising an aspirator cylinder detachably mounted in the cylindrical tubular extension and having a forward end wall facing the outlet hole and defining an aspirating opening concentrically surrounding the outlet hole. The annular socket has an outside diameter which is larger than the diameter of the aspirating opening, and an aspirating piston is slidably mounted in the aspirator cylinder and comprises a piston skirt having an extended end remote from the piston head to form a handle protruding out of the cylinder.
REFERENCES:
patent: 4287819 (1981-09-01), Emerit
Buiz Michael
Rasche Patrick W.
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