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US 4,461,283 AGranted
Endoscopic laser coagulator
AssigneeKabushiki Kaisha Medos Kenkyusho
InventorYuzuru Doi
Life of this patent
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Abstract
An endoscopic laser coagulator provides laser beam irradiation in an oblique direction relative to the axis of the insertion tube of the endoscope and includes an insertion tube having a leading end adapted to be introduced into the body and an elongate laser beam conducting fibre extending through the insertion tube. The laser beam conducting fibre is bent at a region proximate to the leading end of the insertion tube such that an oblique laser beam irradiation is obtained relative to the axis of the insertion tube.
Claims9
An endoscopic laser coagulator comprising:
- an elongate insertion tube having a leading end adapted to be introduced into a body and elongate laser beam conducting fibre means extending through said insertion tube,
- said laser beam conducting fibre means including a forward, substantially rectilinear length portion proximate to said leading end of said insertion tube,
- said length portion having a longitudinal axis which extends obliquely with respect to the axis of said insertion tube,
- wherein a major length of said laser beam conducting fibre means extends through said insertion tube in a direction substantially parallel to the axis of said insertion tube, and
- wherein said laser beam conducting fibre means are permanently bent at a region proximate to said leading end of said insertion tube to define said forward length portion thereof,
- such that an oblique laser beam irradiation is obtained relative to the axis of said insertion tube.
3 more elements
An endoscopic laser coagulator comprising:
- an elongate insertion tube having a leading end adapted to be introduced into a body,
- elongate laser beam conducting fibre means extending through said tube, and
- an elongate guide channel formed in said insertion tube and adapted to receive said elongate laser beam conducting fibre means,
- wherein said guide channel is angled at a region proximate to said leading end of said insertion tube so as to extend obliquely with respect to the axis of said insertion tube,
- whereby said elongate laser beam conducting fibre means received in said guide channel are bent at a corresponding region thereof proximate to said leading end of said insertion tube.
2 more elements
Dependencies are inferred from the claim text.