Continuous flow endoscope with enlarged outflow channel

Details Continuous flow endoscope with enlarged outflow channel Continuous flow endoscope with enlarged outflow channel

1996-09-24

1998-09-15

Flanagan, Beverly M.

Surgery

Endoscope

Urological

600105, A61B 130

Patent

active

058072403

ABSTRACT:
An endoscope with a working element and a sheath assembly. The sheath assembly has an outer sheath with an outer tube, and inner sheath with an inner tube and an insulating tip. An inflow channel is formed inside the inner tube. An outflow channel is formed between the inner and outer tubes. The insulating tip is connected to the front of the inner tube and has two holes; one for inflow and one for outflow. The top side of the inner tube has a flat shape to form an enlarged outflow channel area between the flat top side and the outer tube.

REFERENCES:
patent: 3835842 (1974-09-01), Iglesias
patent: 3900022 (1975-08-01), Widran
patent: 3939839 (1976-02-01), Curtiss
patent: 4132227 (1979-01-01), Ibe
patent: 4423727 (1984-01-01), Widran et al.
patent: 4920961 (1990-05-01), Grossi et al.
patent: 5320091 (1994-06-01), Grossi et al.
patent: 5392765 (1995-02-01), Muller
patent: 5486155 (1996-01-01), Muller et al.
patent: 5509892 (1996-04-01), Bonnet

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