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Wearable Device For Feeding and Observing Birds and Other Flying Animals

A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.

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US Patent 4887592 - Cornea laser-cutting apparatus

US Patent Issued on December 19, 1989
Estimated Patent Expiration Date: Icon_subject June 2, 2007Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
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Abstract

A cornea laser-cutting apparatus adapted for use in cutting out a cornea of patient's or donor's eye in full thickness cornea transplanting surgery or keratoplasty. The cornea laser-cutting apparatus comprises an HF or Er-YAG laser source and a projection optical system for converging laser beams radiated from the laser source in a ring-like shape on the cornea, and includes an axicon lens or mirror movably mounted for varying the size of the ring-like shape.

Other References

  • "Polarization Effects of Axicons" (Applied Optics, vol. 18, No. 5, Mar. 1, 1979)
  • "Linear, Annular, and Radial Focusing With Axicons and Applications to Laser Machining" (Applied Optics, vol. 17, No. 10, May 15, 1978)
  • "The Axicon: A New Type of Optical Element" (Journal of the Optical Society of America, vol. 44, No. 8, Aug. 1954)
  • Advertisement for a Model 294 Erbium: YAG Laser Offered For Sale by the Quantronix Corp
  • "Limbectomies, Keratectomies, and Keratostomies Performed With a Rapid-Pulsed Carbon Dioxide Laser", American Journal of Ophthalmology, vol. 71, No. 6, Jun. 1971
  • "Excimer Laser Ablation of the Cornea and Lens", American Journal of Ophthalmology, vol. 92, No. 6, Jun. 198

Inventor

Application

No. 056711 filed on 06/02/1987

US Classes:

606/5, Recurving or reshaping of the eye219/121.6, Using laser219/121.7, Hole punching219/121.78, Beam position control606/18Mirror

Field of Search

219/121.6, Using laser219/121.78, Beam position control219/121.79, Path adjustment219/121.7Hole punching

Examiners

Primary: Cohen, Lee S.
Assistant: Shay, David M.

Attorney, Agent or Firm

US Patent References

3096767, 3419321, 3534462, 3710798, 3848970, 3947780, Acoustooptic mode-locker frequency doubler
Issued on: 03/30/1976
Inventor: Rice ,   et al.
4123143, Laser beam aligning apparatus
Issued on: 10/31/1978
Inventor: Yachin ,   et al.
4275288, Apparatus for machining material
Issued on: 06/23/1981
Inventor: Makosch ,   et al.
4461294, Apparatus and process for recurving the cornea of an eye
Issued on: 07/24/1984
Inventor: Baron
4538608, Method and apparatus for removing cataractous lens tissue by laser radiation
Issued on: 09/03/1985
Inventor: L'Esperance, Jr.
4628416, Variable spot size illuminator with constant convergence angle
Issued on: 12/09/1986
Inventor: Dewey
4648400, Ophthalmic surgery system
Issued on: 03/10/1987
Inventor: Schneider ,   et al.
4665913, Method for ophthalmological surgery
Issued on: 05/19/1987
Inventor: L'Esperance, Jr.
4718418Apparatus for ophthalmological surgery
Issued on: 01/12/1988
Inventor: L'Esperance, Jr.

International Class

A61N 005/06

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