Method and apparatus for ocular perfusion

Details Method and apparatus for ocular perfusion Method and apparatus for ocular perfusion

1989-11-20

1991-07-16

Pellegrino, Stephen C.

Surgery

Means for introducing or removing material from body for...

Gas application

604 43, 604 48, A61M 3700

Patent

active

050321110

ABSTRACT:
Ocular perfusion during intraocular surgery of the anterior or posterior ocular cavity is optimized through the method of using a gas pump having a discernible and controllable output pressure to pressurize a reservoir of liquid infusate, which is supplied under pressure to a surgical infusion instrument for perfusion of the selected ocular chamber (Gas Forced Liquid Infusion, GFLI). The infusate selection and the infusate pressure can be controlled with a high degree of accuracy and both can be rapidly varied by audible command. Preferentially a human sensible indication of pressure is constantly available at the gas pump.

REFERENCES:
patent: 4184510 (1980-01-01), Murry et al.
patent: 4886498 (1989-12-01), Newton
patent: 4900301 (1990-02-01), Morris et al.
"Automated Regulation of Fluid Infusion Pressure During Vitrectomy", Witherspoon, M.D., et al, Arch. of Ophthalmology, vol. 104, Oct. 1986.

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