U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Laparoscopic defogging apparatus

Patent 5549543 Issued on August 27, 1996. Estimated Expiration Date: Icon_subject June 1, 2015. 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

Endoscope with cleaning device
Patent #: 3980078
Issued on: 09/14/1976
Inventor: Tominaga

Urological endoscope particularly resectoscope
Patent #: 4132227
Issued on: 01/02/1979
Inventor: Ibe

Blood incubator device
Patent #: 4256697
Issued on: 03/17/1981
Inventor: Baldwin

Systems and methods for maintaining a clear visual field during endoscopic procedures
Patent #: 5167220
Issued on: 12/01/1992
Inventor: Brown

Single channel scope cleaning method and apparatus
Patent #: 5225001
Issued on: 07/06/1993
Inventor: Manni, et al.

5237984

Electronic video dental camera
Patent #: 5290168
Issued on: 03/01/1994
Inventor: Cooper, et al.

Method and apparatus for preheating an optical instrument prior to use thereof in a medical procedure
Patent #: 5351675
Issued on: 10/04/1994
Inventor: Brodsky

System and method for cleaning viewing scope lenses Patent #: 5392766
Issued on: 02/28/1995
Inventor: Masterson, et al.

Inventor

Application

No. 457012 filed on 06/01/1995

US Classes:

600/169, Fog prevention219/429, With vessel and stand392/433, With exposed radiant heating element600/102With chair, table, holder, or other support

Examiners

Primary: Dvorak, Linda C. M.
Assistant: Flanagan, Beverly M.

Attorney, Agent or Firm

Foreign Patent References

  • 1618399 SU. 01/12/1991

International Class

A61B 001/06

Abstract

A laparoscopic defogging apparatus for regulating and maintaining the temperature of a lens and end portion of the laparoscope is disclosed. A receptacle is provided which contains a first sterile fluid at a sufficient depth to allow the lens and end portion of the laparoscope to be placed in thermal contact with the first sterile fluid. A container is provided into which the receptacle is placed, which container is adapted to receive and contain a second sterile fluid at a sufficient depth to provide thermal contact with at least a part of the receptacle side wall portion. A heating device is provided to heat the sterile fluids whereby the laparoscope is maintained at a constant desired temperature, thereby preventing lens fogging.

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