Endoscope having optical elements that are resistant to condensation
Patent 4805598 Issued on February 21, 1989. Estimated Expiration Date: 
September 22, 2007. 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.
September 22, 2007. 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 695606 3740113 Multichannel endoscope Light directing control system, particularly for medical operating and diagnostic use Solar collector Longitudinal water-tight light waveguide cable and the method of manufacture Rigid endoscope of oblique window type Catheter Patent #: 4619247 InventorAssigneeApplicationNo. 07/099490 filed on 09/22/1987US Classes:600/169, Fog prevention359/665, Fluid600/176Having particular distal lens or windowExaminersPrimary: Grieb, William H.Attorney, Agent or FirmInternational ClassesA61B 1/12 (20060101)A61B 1/00 (20060101) Foreign Application Priority Data1986-09-26 JPAbstractAn endoscope includes an insertion section, which is inserted into a body cavity of a human subject, and image transmitting means, which is located within the insertion section and is composed a plurality of lenses. A highly-viscous gel-like substance free from any water moisture is used to fill the space between adjacent associated lenses, or else is employed as a light transmitting means for conducting light, supplied from a light source, from that distal end portion onto a body cavity of the human subject. | |
