Endoscope
First Claim
Patent Images
1. An endoscope comprising:
- an inserting tube to be inserted into a human body;
a first optical system fixed in a tip end of said inserting tube for observing in vivo tissues within a human body at a first magnification;
a second optical system fixed in the tip end of said inserting tube for observing the in vivo tissues at a second magnification that is higher than the first magnification; and
a tip body mounted on a distal end of said inserting tube, said tip body holding said first optical system and said second optical system, wherein a portion of said second optical system is within the field of view of said first optical system, and wherein a position of said first optical system is fixed in relation to a position of said second optical system within a single inserting tube.
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Abstract
An endoscope has an inserting tube to be inserted into a human body, first and second optical systems integrally secured to a tip end portion of the inserting tube. The first and second optical systems are for observing the in vivo tissues at different magnifications. A front end portion of the second optical system is protruded by a predetermined amount with respect to a front end portion of the first optical system so that the front end portion of said second optical system is located within a field of view of said second optical system.
98 Citations
19 Claims
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1. An endoscope comprising:
- an inserting tube to be inserted into a human body;
a first optical system fixed in a tip end of said inserting tube for observing in vivo tissues within a human body at a first magnification;
a second optical system fixed in the tip end of said inserting tube for observing the in vivo tissues at a second magnification that is higher than the first magnification; and
a tip body mounted on a distal end of said inserting tube, said tip body holding said first optical system and said second optical system, wherein a portion of said second optical system is within the field of view of said first optical system, and wherein a position of said first optical system is fixed in relation to a position of said second optical system within a single inserting tube. - View Dependent Claims (2, 3, 4)
- an inserting tube to be inserted into a human body;
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5. An endoscope comprising:
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an inserting tube to be inserted into a human body; a first optical system fixed in a tip end of said inserting tube for observing in vivo tissues within a human body at a first magnification; and a second optical system fixed in the tip end of said inserting tube for observing the in vivo tissues at a second magnification that is higher than the first magnification, wherein said first optical system and said second optical system are provided on an end surface of a tip body mounted on a distal end of said inserting tube, said second optical system being arranged such that at least a front end portion thereof is protruded with respect to said first optical system, and wherein a position of said first optical system is fixed in relation to a position of said second optical system within a single inserting tube. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. An endoscope comprising:
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an inserting tube to be inserted into a human body; a first optical system fixed in a tip end of said inserting tube for observing in vivo tissues within a human body at a first magnification; and a second optical system fixed in the tip end of said inserting tube for observing the in vivo tissues at a second magnification that is higher than the first magnification, wherein said first optical system and said second optical system are provided on an end surface of a tip body mounted on a distal end of said inserting tube, said second optical system being arranged such that at least a front end portion thereof is protruded with respect to said first optical system, wherein the end surface of said tip body is formed with a protruded cover member that covers side surface of said second optical system. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification