Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1997-04-02
1999-11-16
Bockelman, Mark
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
604 43, 604 83, 606107, A61B 1720
Patent
active
059848898
ABSTRACT:
A phacoemulsification handpiece for ophthalmic surgical procedures includes a needle having a tip and connected to a source of ultrasonic energy, for cutting and/or fragmenting eye tissue along with a conduit for introducing irrigation fluid proximate the needle tip. The handpiece also includes separate structure for introducing a viscous fluid, such as a viscoelastic material, proximate the needle tip as well as bore through the needle and handpiece for aspirating irrigation fluid, viscoelastic material end cut and/or fragmented eye tissue. An accumulator, connected to the housing is provided for containing a supply of viscous fluid. A diaphragm assembly and a manual valve are provided for delivering viscous material to the needle tip.
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Christ F. Richard
Zaleski Edward R.
Allergan Sales Inc.
Bockelman Mark
Hackler Walter A.
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