Endoscopes

Details Endoscopes Endoscopes

1975-12-01

1978-02-28

Medbery, Aldrich F.

Surgery

Truss

Perineal

350 47, 350 61, 219219, A61B 106

Patent

active

040760189

ABSTRACT:
A magnifying lens incorporated in an endoscope optical system for viewing an illuminated area to be examined by means of the endoscope is adjustable between end positions in which it lies behind and in front of the focus of the optical system respectively, whereby to enable general examination of said area at a relatively small magnification and a more detailed examination of said area at a relatively higher magnification. A viewing window of an endoscope optical system is heated by an electrical heating conductor to guard against clouding of the viewing window, for example by the breath of a patient.

REFERENCES:
patent: 702048 (1902-06-01), Common
patent: 1791254 (1931-02-01), Brockdorff
patent: 2171360 (1939-08-01), Strang
patent: 2585273 (1952-02-01), Prutzman
patent: 2722160 (1955-11-01), Prutzman
patent: 3111570 (1963-11-01), Strang et al.
patent: 3135004 (1964-06-01), Naigraw
patent: 3145249 (1964-08-01), Meltzer
patent: 3297022 (1967-01-01), Wallace
patent: 3434775 (1969-03-01), Gosselin
patent: 3495259 (1970-02-01), Rocholl et al.
patent: 3686473 (1972-08-01), Shirn
patent: 3901220 (1975-08-01), Koyasu

Affiliated with

Also associated with

Rating

Endoscopes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Endoscopes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Endoscopes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1670159