Patent US2647957A successfully refreshed from Google Patents.
US4411257A
Expired / Lapsed
US
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Inspection endoscope
Assignee: Machida Endoscope Co Ltd
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Filing: 1981-12-03
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Granted: 1983-10-25
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Expires: 2001-12-03
Abstract
Abstract Disclosed is an inspection endoscope for medical or industrial applications, by which an observer can know the degree of the color change, inner pressure and temperature while the observer inspects, for example, the interior of the colon. In the eye lens zone of this inspection endoscope, not only the image of the inspection object fed from an image guide but also other factors such as the color, inner pressure and temperature are simultaneously displayed, and therefore, the inspection can be accomplished objectively while the inspection object is observed.
Inventors
- 👤 Masashi Machida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:53
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/24; G02B23/26; A; A61; A61B; A61B1/00; A61B1/00163; A61B1/00165
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
221 words
An inspection endoscope comprising an eyepiece, an insertion tube having an image guide and a first light guide extending therethrough with a first end of each located opposite an object to be observed, a handle portion including said eyepiece permitting visual observation of an object being observed, a first light source located opposite the second end of said first light guide to carry light to illuminate the object being observed, said eyepiece located at the second end of said image guide and an improvement comprising a data introduction guide having a first end opposite a data device and a second end located at said eyepiece, said data device comprising a display related to the observation being made, said display comprising data to be simultaneously visually compared while the object is being observed, said display comprising a color identifying sheet, said data device further comprising a second light source and a second light guide, a first end of said second light guide located opposite said second light source and a second end of said second light guide located opposite said color identifying sheet with the combination of said second light source, said second light guide and said data introduction guide presenting the same optical decay characteristics as the combination of said first light source, said first light guide and said image guide.
Claim 2
Dependent Claim
221 words
An inspection endoscope comprising an eyepiece, an insertion tube having an image guide and a first light guide extending therethrough with a first end of each located opposite an object to be observed, a handle portion including said eyepiece permitting visual observation of an object being observed, a first light source located opposite the second end of said first light guide to carry light to illuminate the object being observed, said eyepiece located at the second end of said image guide and an improvement comprising a data introduction guide having a first end opposite a data device and a second end located at said eyepiece, said data device comprising a display related to the observation being made, said display comprising data to be simultaneously visually compared while the object is being observed, said display comprising a color identifying sheet, said data device further comprising a second light source and a second light guide, a first end of said second light guide located opposite said second light source and a second end of said second light guide located opposite said color identifying sheet with the combination of said second light source, said second light guide and said data introduction guide presenting the same optical decay characteristics as the combination of said first light source, said first light guide and said image guide.
Claim 3
Dependent Claim
20 words
An inspection endoscope as set forth in claim 1, wherein said first and second light sources are of equal power.
Claim 4
Dependent Claim
40 words
An inspection endoscope as set forth in claim 2, wherein the length of said first light guide equals the length of said second light guide and the length of said data introduction guide equals the length of said image guide.
Claim 5
Dependent Claim
34 words
An inspection endoscope as set forth in claim 2, wherein the optical decay characteristics of said first and second light guides are equal as are those of said image guide and said data guide.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-24 | 1987-04-25 | 1987-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-24 | 1991-04-25 | 1991-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-24 | 1995-04-25 | 1995-10-25 | $7700.00 | Window Closed / Lapsed |