U.S. patents available from 1976 to present.
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Fiber optic apparatus for use with medical lasers

Patent 5207673 Issued on May 4, 1993. Estimated Expiration Date: Icon_subject December 6, 2011. Estimated 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.

Patent References

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3622743

3693623

3809072

3821510

3843865

3865113

Method of surgical treatment using laser emission and apparatus for realizing same
Patent #: 4185633
Issued on: 01/29/1980
Inventor: Prozorov ,   et al.

Laser tunnelling device
Patent #: 4207874
Issued on: 06/17/1980
Inventor: Choy

Laser scalpel
Patent #: 4266549
Issued on: 05/12/1981
Inventor: Kimura

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Inventors

Assignee

Application

No. 803919 filed on 12/06/1991

US Classes:

606/16, With optical fiber385/33, Lens385/38, End fire606/15, With optical fiber606/17With beam shaping or redirecting (e.g., lens)

Examiners

Primary: Shay, David M.

Attorney, Agent or Firm

Foreign Patent References

  • 069351 EP. 01/13/1983
  • 105706 EP. 04/13/1984
  • 0206331 EP. 12/13/1986
  • 0206332 EP. 12/13/1986
  • 0248520 EP. 12/13/1987
  • 0255974 EP. 02/13/1988
  • 0281161 EP. 09/13/1988
  • 2828322 DE. 01/13/1980
  • 3225452 DE. 01/13/1983
  • 3719561 DE. 01/13/1988
  • 258360A DE. 07/13/1988
  • 2513109 FR. 09/13/1981
  • 163307 JP. 07/13/1988
  • 2023004 GB. 12/13/1979

International Class

A61N 005/06

Abstract

An optical apparatus functions as a laser catheter for removal, penetration or treatment of human tissue or other biotic material. The arrangement of the optical components, including the focal length of the lens and the spacing between the lens and the source of light is selected to yield an output beam having advantageous characteristics which are particularly suitable for medical laser treatment. Such characteristics include a relatively long beam throw, a long focal range, and a small output beam waist. A hollow tip, preferably conical in shape, is utilized to provide a tactile indicator as to the cutting action of the output beam.

Other References

  • Righini et al., "Le Fibre Ottiche i Medicina", Alta Frequenza, vol. 47, No. 3, 1978, pp. 165-171 (with copy of English language translation)
  • Sydney A. Self, "Focusing of Spherical Gaussian Beams", Applied Optics, vol. 22, No. 5, Mar. 1, 1983
  • Allison et al., "Use of Fiber Optics for Remote UF6 Laser-Induced Fluorescent Measurements", Proceedings of SPIE, vol. 380, Apr. 11-15, 1983, pp. 369-375
  • Grundfest et al., "Laser Ablation of Human Athersclerothic Plaque Without Adjacent Tissue Injury", Journal of the American College of Cardiology, vol. 5, pp. 929-933 (1985)
  • "Delivering the Promise of Direct Beam Therapy"--Spectraprobe-PLR Catheter, 2 pages
  • "Peripherals Are Our Business"--Laserguide, 2 pages
  • Pankratov et al., "Instruments: A Step-Zoom Probe for Laser Endophotocoagulation: I. Design", Ophthalmic Surgery, vol. 18, No. 1, Jan. 1987, pp. 61-65
  • Pankratov, "Algorithm for Calculating a Variable-Magnification Endophotocoagulation Probe", SPIE, vol. 713 Optical Fibers in Medicine II (1986), pp. 22-2
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