Surgery – Truss – Perineal
Patent
1984-05-17
1985-12-03
Grieb, William H.
Surgery
Truss
Perineal
128 16, 128 18, A61B 106
Patent
active
045560528
ABSTRACT:
A medical instrument, specifically a laryngoscope, has a hollow handle containing a primary or secondary electric battery and a lamp, the latter having a light bulb disposed at the upper end of a detachable head of the handle toward which it is urged by a spring bearing upon the battery from below. The lamp is held in a metallic sleeve surrounded by a dielectric sheath which is snap-fitted into the detachable head; the sheath and the sleeve are axially repressible against the spring force. A speculum is pivoted to that head and is swingable between an idle position alongside the handle and a working position perpendicular thereto. In its working position, a camming projection on the speculum represses the assembly of battery, sheath, sleeve and lamp and closes an energizing circuit for the light bulb through the handle head. The speculum has a channel which terminates short of its tip and accommodates a fiber-optical light guide whose rear end is illuminated by the light bulb in the working position. The channel is bounded by two sheet-metal profiles joined together by arc welding and/or soldering.
REFERENCES:
patent: 3638644 (1972-02-01), Reick
patent: 4273112 (1981-06-01), Heine
Dubno Herbert
Grieb William H.
Gustav Mueller GmbH und Co. KG
Ross Karl F.
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