US6033360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable endoscope
Assignee: Pentax Corp
•
Filing: 1998-07-24
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Granted: 2000-03-07
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Expires: 2018-07-24
Abstract
Abstract A portable endoscope having a control part containing an entrance end portion of a light guide for transmitting light for illuminating an object, and a hermetic illuminating light supply unit containing a light source lamp for supplying illuminating light to the light guide. The unit is connected to the control part. An armoring member is disposed at a position where it is heated by heat radiated from the light source lamp. The outer surface of the armoring member is covered with a heat-insulating cover made of a material having a low thermal conductivity. A battery chamber is formed in the illuminating light supply unit to accommodate a battery as a power supply for the lamp. A relief valve releases the pressure in the battery chamber to the outside of the unit when the pressure rises.
Inventors
- 👤 Hiroshi Sano
- 👤 Rensuke Adachi
- 👤 Hirohisa Ueda
- 👤 Kunitoshi Ikeda
- 👤 Kunikiyo Kaneko
- 👤 Takashi Koeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:38
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/00064; A61B1/00066; A61B1/00112; A61B1/00121; A61B1/00126; A61B1/06; A61B1/0661; A61B1/0669; A61B1/07
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
111 words
A portable endoscope having a control part containing an entrance end portion of a light guide for transmitting light for illuminating an object, and a hermetic illuminating light supply unit containing a light source lamp for supplying illuminating light to said light guide, said illuminating light supply unit being connected to said control part, said portable endoscope comprising: a battery chamber formed in said illuminating light supply unit to accommodate a battery that provides electrical power to light said light source lamp; and a relief valve that releases a pressure in said battery chamber to an outside of said illuminating light supply unit when said pressure rises above a predetermined level.
Claim 2
Dependent Claim
111 words
A portable endoscope having a control part containing an entrance end portion of a light guide for transmitting light for illuminating an object, and a hermetic illuminating light supply unit containing a light source lamp for supplying illuminating light to said light guide, said illuminating light supply unit being connected to said control part, said portable endoscope comprising: a battery chamber formed in said illuminating light supply unit to accommodate a battery that provides electrical power to light said light source lamp; and a relief valve that releases a pressure in said battery chamber to an outside of said illuminating light supply unit when said pressure rises above a predetermined level.
Claim 3
Dependent Claim
72 words
A portable endoscope according to claim 1, wherein said relief valve has a groove extending over an entire circumference of an outer surface of a member forming an outer wall of said battery chamber, a communicating hole for providing communication between a bottom of said groove and an inside of said battery chamber, and a ring-shaped sealing member externally fitted into said groove, said sealing member being made of an elastic material.
Claim 4
Dependent Claim
15 words
A portable endoscope according to claim 2, wherein said groove has a V-shaped cross-sectional configuration.
Claim 5
Dependent Claim
23 words
A portable endoscope according to claim 2, wherein there are a plurality of said communication holes which are spaced apart from each other.
Claim 6
Dependent Claim
21 words
A portable endoscope according to claim 1, wherein said illuminating light supply unit is detachable with respect to said control part.
References Cited (Backward Citations)
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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) | 2003-03-07 | 2003-09-06 | 2004-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-03-07 | 2007-09-06 | 2008-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-03-07 | 2011-09-06 | 2012-03-07 | $7700.00 | Window Closed / Lapsed |