Optical system for an endoscope
AssigneeEndoChoice, Inc.
InventorsYaniv Ofir, Robby Dascalo
Life of this patent
Estimating the term…
Abstract
A lens assembly of a viewing element for an endoscope has lenses and a barrel containing the lenses. The internal surface of the barrel is shaped in accordance with the relative position and size of the lenses and a lens holder encompassing at least a portion of the barrel. The barrel and/or the lens holder are injection-molded and can be variably positioned relative to each other. An optional adhesive layer that reduces or eliminates small particles from the viewing element is positioned on an inner surface of the barrel and/or lens holder and used to remove any internal particulate matter that may otherwise obstruct the field of view.
Claims20
A lens assembly for use in a medical device, the lens assembly comprising:
- a barrel having a length, a proximal end, a distal end, a radially inward facing surface, and a radially-outward facing surface, wherein the radially inward facing surface includes:
- a distal tip configured to receive a first lens, a first projection extending radially inward relative to the distal tip and positioned proximal from the distal tip, wherein a second lens abuts a radially inward facing surface of the first projection, a second projection extending radially inward relative to the first projection and positioned proximal from the first projection, wherein the second projection abuts a proximal facing surface of a third lens, and a proximal end positioned radially outward from the distal tip, the first projection, and the second projection;
- a plurality lenses in the barrel, wherein a profile of the radially inward facing surface of the barrel is configured to receive and hold the plurality of lenses, and each of the plurality of lenses abuts the radially inward facing surface of the barrel, the plurality of lenses comprising:
- the first lens, the second lens, and the third lens;
- and a holder having a radially inward facing surface, a proximal end, and a distal end, wherein the barrel is received within the holder.
A lens assembly for use in a medical device, the lens assembly comprising:
- a barrel having a length, a proximal end, a distal end, a radially inward facing surface, and a radially-outward facing surface, wherein the radially inward facing surface includes:
- a distal tip configured to receive a first lens, a first projection extending radially inward relative to the distal tip, wherein the first projection abuts a proximal facing surface of the first lens, a second projection extending radially inward relative to the first projection, wherein the second projection abuts a proximal facing surface of a second lens;
- and a proximal end positioned radially outward from the distal tip, the first projection, and the second projection;
- a plurality lenses in the barrel, wherein a profile of the radially inward facing surface of the barrel is configured to receive and hold the plurality of lenses, and each of the plurality of lenses abuts the radially inward facing surface of the barrel, the plurality of lenses comprising:
- the first lens, and the second lens, a holder having a radially inward facing surface, a proximal end, and a distal end, wherein the barrel is received within the holder.
A lens assembly for use in a medical device, the lens assembly comprising:
- a barrel having a length, a proximal end, a distal end, a radially inward facing surface, and a radially-outward facing surface, wherein the radially inward facing surface includes:
- a distal tip configured to receive a first lens, a first projection extending radially inward relative to the distal tip, wherein the first projection abuts a proximal facing surface of the first lens, a second projection extending radially inward relative to the first projection, wherein the second projection abuts a proximal facing surface of a second lens;
- and a proximal end positioned radially outward from the distal tip, the first projection, and the second projection;
- and a plurality lenses in the barrel, wherein a profile of the radially inward facing surface of the barrel is configured to receive and hold the plurality of lenses, and each of the plurality of lenses abuts the radially inward facing surface of the barrel, the plurality of lenses comprising:
- the first lens, and the second lens.
Dependencies are inferred from the claim text.