US3958566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction control device for an endoscope
Assignee: Olympus Corp
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Filing: 1974-08-23
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Granted: 1976-05-25
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Expires: 1994-08-23
Abstract
Abstract A sliding tube is disposed within a cylindrical insertion pipe. Around the insertion pipe there is provided a surrounding wall member defining a space with the pipe, said space communicating with a suction instrument via a suction pipe and simultaneously with the interior hole of the insertion pipe via a communicating port. The opening planes of the respective upper end opening portions of the insertion pipe and space are rendered substantially flush with each other, each of said upper end opening portions having a size large enough to permit it to be closed by the operator's finger. When an injection instrument is fitted into the upper end opening of the insertion pipe, the sliding tube is lowered to close said communicating port. The surrounding wall member is detachably fitted to a receiving member secured to an endoscope body.
Inventors
- 👤 Hiroyuki Furihata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:25
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/741; A61M1/7411; A61B; A61B1/00; A61B1/00064; A61B1/00066; A61B1/00068; A61B1/00131; A61B1/00137; A61B1/12; A61B1/012; A61B1/015; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/86702; Y10T137/87571; Y10T137/87676
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
155 words
A suction control device comprising: an endoscope having a body, a cylindrical insertion pipe having a through bore interiorly thereof and extending substantially in axial direction of said pipe, the lower end of said through bore communicating with a channel extending interiorly of said endoscope body and the upper end thereof being open to the exterior, said insertion pipe having an upper end opening portion with a shape permitting the end portion of an injection instrument to be inserted thereinto, a wall member surrounding at least partially the outer circumference of said insertion pipe and defining a closed space with said insertion pipe, a suction pipe, said space communicating with said suction pipe and having an upper end opening portion substantially flush with said upper end opening portion of said insertion pipe, and opening means formed in the insertion pipe for selectively establishing communication between said space and the through bore of said insertion pipe.
Claim 2
Dependent Claim
155 words
A suction control device comprising: an endoscope having a body, a cylindrical insertion pipe having a through bore interiorly thereof and extending substantially in axial direction of said pipe, the lower end of said through bore communicating with a channel extending interiorly of said endoscope body and the upper end thereof being open to the exterior, said insertion pipe having an upper end opening portion with a shape permitting the end portion of an injection instrument to be inserted thereinto, a wall member surrounding at least partially the outer circumference of said insertion pipe and defining a closed space with said insertion pipe, a suction pipe, said space communicating with said suction pipe and having an upper end opening portion substantially flush with said upper end opening portion of said insertion pipe, and opening means formed in the insertion pipe for selectively establishing communication between said space and the through bore of said insertion pipe.
Claim 3
Dependent Claim
33 words
A suction control device according to claim 1, wherein said wall member surrounds the whole outer circumference of the insertion tube to cause the space to be disposed concentrically to the insertion pipe.
Claim 4
Dependent Claim
33 words
A suction control device according to claim 1, wherein said opening means comprises an opening closed by the end portion of an injection instrument when said instrument is inserted into said insertion pipe.
Claim 5
Dependent Claim
94 words
A suction control device according to claim 1, further comprising a cylindrical sliding tube slidably disposed within said insertion pipe substantially in axial direction thereof and when lowered from a raised position to close said opening means, a projection formed on the outer circumference of the sliding tube and projecting into an annular recess formed in the inner wall of the insertion pipe and extending substantially in axial direction thereof, and a spring received in said recess so as to normally hold the sliding tube in said raised position by engagement with said projection.
Claim 6
Dependent Claim
27 words
A suction control device according to claim 4, further comprising a valve provided within said sliding tube to substantially prevent the passage therethrough of a body liquid.
Claim 7
Dependent Claim
65 words
A suction control device according to claim 1, further comprising a cylindrical receiving member secured to the endoscope body, said wall member being separably engaged with said receiving member for mounting the wall member onto the endoscope body detachably therefrom, locking means for separably locking the wall member engaged with the receiving member, and sealing means located between the receiving member and the wall member.
Claim 8
Dependent Claim
82 words
A suction control device according to claim 6, wherein said locking means comprises a first flange projecting radially outwardly on the upper end edge of the receiving member and having at least one notch, a second flange projecting radially outwardly on the outer circumference of the wall member, and a locking ring having a third flange projecting radially inwardly so as to engage said second flange, and at least one radially inwardly extending projection corresponding to the notch of the first flange.
Claim 9
Dependent Claim
57 words
A suction control device according to claim 6, wherein said insertion pipe is detachable from the wall member, said wall member having a stepped portion for retaining the insertion pipe in a position in which the insertion pipe is fitted into the wall member, and fixing means for separably holding said insertion pipe in the fitted position.
Claim 10
Dependent Claim
66 words
A suction control device according to claim 8, wherein said fixing means comprises at least one projection projecting radially outwardly on the upper end of the insertion pipe, a fixing ring having a radially inwardly extending flange element engageable with said projection, and a support ring screwed to the outer circumference of the upper end portion of the wall member and screwed to said fixing ring.
References Cited (Backward Citations)
US3517669A
Cited
US3830225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |