US4577621A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscope having novel proximate and distal portions
Assignee: Individual
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Filing: 1984-12-03
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Granted: 1986-03-25
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Expires: 2004-12-03
Abstract
Abstract Three embodiments of an improved endoscope: The first embodiment is composed of a flexible tube member, the proximate end portion of which is attached to and in optical communication with a control unit; and, a second flexible tube member partially circumscribing the first tube member, one terminal end portion of which is (i) affixed to the outer surface of the first flexible tube at a point other than the distal portion and (ii) adapted to expand and contract along its own and the longitudinal axis of the first flexible tube member. The second embodiment contains a control unit, first, second and flexible tube members and in addition a third tube member. The third tube member has (i) a terminal portion affixed to the first tube member at a point other than at a distal portion and (ii) the balance thereof spaced apart from and circumscribes a part of the first and a portion of the second flexible tube member. One terminal free end of the second flexible tube is slideably received within the third tube member. The third embodiment contains a control unit, first and second flexible tube members; the second flexible tube member is not attached to the first flexible tube and has a terminal end portion composed of an outward flaring sidewall forming an angle with the longitudinal axis of the balance of the second flexible tube.
Inventors
- 👤 Jayendrakumar I. Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:05
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/005; A61B1/0051; A61B1/00147; A61B1/00156; A61B1/31
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
155 words
An endoscope comprising: (a) a control unit; (b) a first flexible tube member having a proximate end portion in optical communication with the control unit, a body portion and a distal end portion having a free end containing means therein to transmit light to and from said control unit so that images outside of the distal portion may be illuminated and viewed through the control unit and the proximate end portion; (c) a second flexible tube member having a proximate and distal end portions and a body portion partially circumscribing the body portion of said first tube member; and, (d) a first expansion and contraction means attached to the distal end portion of the second flexible tube member and to the first flexible tube member at a point other than its distal portion so that it will expand and contract along its own and the longitudinal axis of the first and second flexible tube members.
Claim 2
Dependent Claim
155 words
An endoscope comprising: (a) a control unit; (b) a first flexible tube member having a proximate end portion in optical communication with the control unit, a body portion and a distal end portion having a free end containing means therein to transmit light to and from said control unit so that images outside of the distal portion may be illuminated and viewed through the control unit and the proximate end portion; (c) a second flexible tube member having a proximate and distal end portions and a body portion partially circumscribing the body portion of said first tube member; and, (d) a first expansion and contraction means attached to the distal end portion of the second flexible tube member and to the first flexible tube member at a point other than its distal portion so that it will expand and contract along its own and the longitudinal axis of the first and second flexible tube members.
Claim 3
Dependent Claim
36 words
The endoscope of claim 1 containing a second expansion and contraction means attached to the proximate end portion of the second flexible tube member and to the proximate end portion of the first flexible tube member.
Claim 4
Dependent Claim
19 words
The endoscope of claims 1 or 2 wherein the inner surface of the second flexible tube member is undulating.
Claim 5
Dependent Claim
19 words
The endoscope of claims 1 or 2 wherein the outer surface of the first flexible tube member is undulating.
Claim 6
Dependent Claim
21 words
The endoscope of claims 1 or 2 wherein both inner and outer surfaces of the second flexible tube member is undulating.
Claim 7
Dependent Claim
24 words
The endoscope of claim 2 wherein the longitudinal distance the first and second expansion and contraction means may expand and contract are essentially equal.
Claim 8
Dependent Claim
41 words
The endoscope of claims 1, 2 or 6 wherein the space delimited by the second flexible tube and the first and second expansion and contraction means not otherwise occupied by the first flexible tube member is essentially occupied by a lubricant.
Claim 9
Dependent Claim
229 words
An endoscope comprising: (a) a control unit; (b) a first flexible tube member having a proximate end portion in optical communication with the control unit, a body portion and a distal end portion having a free end containing means therein to transmit light to and from said control unit so that images outside of the distal portion may be illuminated and viewed through the control unit and the proximate end portion; (c) a second flexible tube member having a body portion, distal and proximate end portions, partially circumscribing said first tube member; and, (d) a third flexible tube member (i) having one terminal end portion affixed to the first flexible tube member at a point other than its distal portion and a body portion having a free edge spaced apart from and opposite from such point; (ii) the body portion of the third flexible tube member being spaced apart from, coaxial with and circumscribing the distal portion of the second flexible tube member and a portion of the body portion of said first flexible tube member adjacent to its distal portion, so that the distal end portion of the second flexible tube member is slideably received in the third flexible tube member and may be moved reciprocally therein from the point where the third flexible tube member is affixed to the first flexible tube member and its free edge.
Claim 10
Dependent Claim
229 words
An endoscope comprising: (a) a control unit; (b) a first flexible tube member having a proximate end portion in optical communication with the control unit, a body portion and a distal end portion having a free end containing means therein to transmit light to and from said control unit so that images outside of the distal portion may be illuminated and viewed through the control unit and the proximate end portion; (c) a second flexible tube member having a body portion, distal and proximate end portions, partially circumscribing said first tube member; and, (d) a third flexible tube member (i) having one terminal end portion affixed to the first flexible tube member at a point other than its distal portion and a body portion having a free edge spaced apart from and opposite from such point; (ii) the body portion of the third flexible tube member being spaced apart from, coaxial with and circumscribing the distal portion of the second flexible tube member and a portion of the body portion of said first flexible tube member adjacent to its distal portion, so that the distal end portion of the second flexible tube member is slideably received in the third flexible tube member and may be moved reciprocally therein from the point where the third flexible tube member is affixed to the first flexible tube member and its free edge.
Claim 11
Dependent Claim
17 words
The endoscope of claim 8 wherein the innermost surface of the second flexible tube member is undulated.
Claim 12
Dependent Claim
19 words
The endoscope of claim 8 wherein the inner and outermost surfaces of the second flexible tube member are undulating.
Claim 13
Dependent Claim
124 words
An endoscope comprising: (a) a control unit; (b) a first flexible tube member having a proximate end portion in optical communication with the control unit, a body portion and a distal end portion having a free end containing means therein to transmit light to and from said control unit so that images outside of the distal portion may be illuminated and viewed through the control unit and the proximate end portion; and, (c) a second flexible tube member partially circumscribing the body portion of the first flexible tube member having free proximate and distal end portions, the distal end portion comprising an outward flaring sidewall the thickness thereof being greater than the thickness of the body portion of the second flexible tube member sidewall.
Claim 14
Dependent Claim
124 words
An endoscope comprising: (a) a control unit; (b) a first flexible tube member having a proximate end portion in optical communication with the control unit, a body portion and a distal end portion having a free end containing means therein to transmit light to and from said control unit so that images outside of the distal portion may be illuminated and viewed through the control unit and the proximate end portion; and, (c) a second flexible tube member partially circumscribing the body portion of the first flexible tube member having free proximate and distal end portions, the distal end portion comprising an outward flaring sidewall the thickness thereof being greater than the thickness of the body portion of the second flexible tube member sidewall.
Claim 15
Dependent Claim
17 words
The endoscope of claim 11 wherein the inner surface of the second flexible tube member is undulating.
Claim 16
Dependent Claim
19 words
The endoscope of claim 11 wherein the inner and outermost surface of the second flexible tube member is undulating.
References Cited (Backward Citations)
US3610231A
Cited
US3788304A
Cited
US3866601A
Cited
US4148307A
Cited
US4141364A
Cited
US4176662A
Cited
US4207872A
Cited
US4273111A
Cited
US4292961A
Cited
US4366810A
Cited
US4329995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-24 | 1989-09-23 | 1990-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-24 | 1993-09-23 | 1994-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-24 | 1997-09-23 | 1998-03-25 | $7700.00 | Window Closed / Lapsed |