Surgery – Truss – Pad
Patent
1983-10-28
1986-03-25
Chamblee, Hugh R.
Surgery
Truss
Pad
604 22, A61B 1732
Patent
active
045776296
ABSTRACT:
A surgical cutting instrument for use in ophthalmic surgery includes a cylindrical body having front and rear plugs in opposite ends thereof with a piston disposed in a centrally disposed chamber in the body, and a probe having an elongate tubular outer member with a proximal end received in an axial bore in the front plug and a closed distal end with a port therein and an elongate tubular inner member slidably disposed in the outer member with a distal end movable across the port to provide a cutting action and a portion fixed in an axial bore in the piston such that the probe inner member is moved with the piston, the rear plug having an axial bore therethrough aligned with the probe inner member to permit evacuation of cut material through the surgical cutting instrument and a second bore therethrough for supplying pressure to the chamber to move the piston against a spring bias. The surgical cutting instrument is designed to be economically disposable by being constructed of a minimal number of parts requiring minimal machining and tooling and capable of quick and simple assembly.
REFERENCES:
patent: 3776238 (1973-12-01), Peyman et al.
patent: 3884238 (1975-05-01), O'Malley et al.
patent: 3994297 (1976-11-01), Kopf
patent: 4011867 (1977-03-01), Seiler
patent: 4246902 (1981-01-01), Martinez
patent: 4428748 (1984-01-01), Peyman et al.
Chamblee Hugh R.
CooperVision, Inc.
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