ENDOSCOPE WITH FOCAL LENGTH VARYING FUNCTION
First Claim
1. An endoscope with a focal length varying function, comprising:
- an observation window which is disposed on a side of a distal end section of an insertion section;
an objective optical system which is built in the observation window and is capable of varying a focal length thereof; and
an endo-therapy product raising base which is disposed in a vicinity of an endo-therapy product projection port of the distal end section and is oscillatable between a stored position where the endo-therapy product raising base is stored in the distal end section and a raised position where the endo-therapy product raising base is projected from the distal end section in accordance with a raising operation on a proximal side,wherein at a time of a state in which the endo-therapy product raising base is projected from the distal end section side by a predetermined amount, a predetermined part of the endo-therapy product raising base is set to approximately correspond to a best focus position of the objective optical system.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention provides an endoscope with a focal length varying function, which includes an observation window, an objective optical system which is disposed in the observation window and is capable of varying a focal length thereof, and an endo-therapy product raising base which is oscillatable between a stored position where the endo-therapy product raising base is stored in the distal end section body (endo-therapy product projection port) and a raised position where the endo-therapy product raising base is projected from the distal end section body in accordance with a raising operation on a proximal side, wherein at a time of a state in which the endo-therapy product raising base is projected from the distal end section body by a predetermined amount, a predetermined part of the endo-therapy product raising base is set to approximately correspond to a best focus position of the objective optical system.
-
Citations
13 Claims
-
1. An endoscope with a focal length varying function, comprising:
-
an observation window which is disposed on a side of a distal end section of an insertion section; an objective optical system which is built in the observation window and is capable of varying a focal length thereof; and an endo-therapy product raising base which is disposed in a vicinity of an endo-therapy product projection port of the distal end section and is oscillatable between a stored position where the endo-therapy product raising base is stored in the distal end section and a raised position where the endo-therapy product raising base is projected from the distal end section in accordance with a raising operation on a proximal side, wherein at a time of a state in which the endo-therapy product raising base is projected from the distal end section side by a predetermined amount, a predetermined part of the endo-therapy product raising base is set to approximately correspond to a best focus position of the objective optical system. - View Dependent Claims (2, 3, 4)
-
-
5. An endoscope with a focal length varying function, comprising:
-
a distal end section of an insertion section which is inserted in a body cavity; an observation window which is disposed on the distal end section and configured to observe a part to observed, which is located in the body cavity; an objective optical system which is built in the observation window and is capable of varying a focal length thereof at a time of observing the part to be observed; an endo-therapy product projection port which is disposed in a vicinity of the observation window in the distal end section and configured to project an endo-therapy product which is passed through the insertion section; and an endo-therapy product raising base which is disposed in the endo-therapy product projection port, is oscillatable between a stored position where the endo-therapy product raising base is stored in the distal end section and a raised position where the endo-therapy product raising base is projected from the distal end section in accordance with a raising operation on a proximal side, and raises the endo-therapy product when the endo-therapy product raising base is disposed in the stored position, thereby projecting the endo-therapy product from the endo-therapy product projection port, wherein when the endo-therapy product raising base is raised and projected from the distal end section by a desired length, the length is set to approximately correspond to a best focal length of the objective optical system. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
-
Specification