Improvements in oesophagoscopes

Abstract

Abstract 502,331. Oesophagoscopes. WOLF GES., G. Sept. 2, 1938, No. 25658. Conven. tion date, Sept. 16, 1937. [Class 81 (ii)] An oesophagoscope tube 1 is provided with an axialvision viewing tube 19, and a lamp 8 is mounted on a spring blade 6 on the tube and is pressed out radially through a lateral gap therein by the insertion of tube 19, in order to illuminate the field. During insertion of the instrument into the body, tube 19 is replaced by a tubular mandrin 14 having a lateral gap 16 in which the lamp is held by the spring 6. The mandrin carries a rubber nose 18 on a screw-sleeve 17 and the tube 1 carries a rubber envelope 12, which is inflated through a nipple 10 after closing the end 4 of the tube, and in inflated condition is transparent. The lamp is connected by wires, passing through the blade 6 and the tube 1, to a socket 9 for a plug connection to the electric supply.

Inventors

No inventors recorded.

Bibliographic Details