Surgery – Means for introducing or removing material from body for... – Material introduced into and removed from body through...
Patent
1997-02-13
1999-07-06
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Material introduced into and removed from body through...
623 6, 604280, A61M 3100
Patent
active
059191589
ABSTRACT:
An infusion cannula for use in clearing and preventing condensation on the posterior surface of an artificial lens during the fluid-gas exchange portion of a pars plana vitrectomy is described. The infusion cannula directs the flow of gas entering the eye toward the posterior surface of the lens. The moisture content of the gas supplied to the infusion cannula is minimized in order to increase the effectiveness with which condensation is removed or prevented. Additionally, the temperature of the gas supplied to the infusion cannula is controlled to further increase the effectiveness with which condensation is removed.
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patent: 5360399 (1994-11-01), Stegmann
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Sappenfield, D., et al, Impaired Ophthalmoscopy and Condensation on Intraocular Lens, American Journal of Ophthalmology, vol. 108., No. 1, p. 88, Jul. 15, 1989.
Slusher, M..M., et al., Loss of Visibility Caused By Moisture Condensation on the Posterior Surface of a Silicon Intraocular Lens During Fluid/Gas Exchange After Posterior Vitrectomy, American Journal of Ophthalmology, vol. 118, No. 5, p. 667, Nov. 15, 1994.
Eaton, A.M., et al., Condensation on the Posterior Surface of Silicone Intraocular Lenses During Fluid-Air Exchange, Journal of the American Academy of Ophthalmology, vol. 102, No. 5, pp. 733-36, May 1995.
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Kusaka, S., et al., Condensation of Silicone Oil on the Posterior Surface of a Silicone Intraocular Lens During Vitrectomy, American Journal of Ophthalmology, vol. 121, No. 5, pp. 574-75, May, 1996.
Bennett Michael D.
Saperstein David A.
Emory University
Gray Bruce D.
Pratt John S.
Yasko John D.
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