Endoscope film feeding device

Details Endoscope film feeding device Endoscope film feeding device

1978-02-23

1979-08-14

Mautz, George F.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

128 6, 242 673R, 354 63, G03B 104, G03B 1514, A61B 106

Patent

active

041643330

ABSTRACT:
An endoscope film feeding device for delivering a film in the distal end portion of a sheath of an endoscope comprises a feeding pulley rotatably mounted in an operation section of the endoscope and having a frustoconical drum portion with a helical groove in its outer peripheral wall. The feeding device also includes an operating wire with its one end connected to the larger end portion of the drum portion and the other end to a film takeup wire wound about the film takeup pulley in the distal end portion of the sheath. Each time the drum portion is rotated through a predetermined angle, the operating wire gradually engages the helical groove from the larger diameter end to the smaller diameter end so that the operating wire pulls the film takeup wire to rotate the film takeup pulley to feed the film with an equal frame length kept for each film takeup.

REFERENCES:
patent: 3317157 (1967-05-01), Leiber
patent: 4038977 (1977-08-01), Okada

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