US4049000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction retraction instrument
Assignee: INSTITUTE FOR SOCIAL AND SCIENTIFIC DEVELOPMENT 376 EAST 400 SOUTH NO 315 SALT LAKE CITY UTAH 84111 A CORP OF UTAH
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Filing: 1975-08-01
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Granted: 1977-09-20
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Expires: 1995-08-01
Abstract
Abstract A suction retraction instrument comprises an elongated hollow suction pipe having a port at its lower end and secured to a manifold at its upper end and a retractor arm secured to the pipe adjacent the lower end and extending at an angle therefrom.
Inventors
- 👤 Robert W. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:08
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/741; A61M1/7411; A61M1/84; A61B; A61B90/00; A61B90/08; A61B2090/0817
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
86 words
A suction retraction instrument comprising: an elongated hollow suction pipe having a suction port at its lower end and secured to a manifold at its upper end and having a straight lower portion extending along an axis, and a unitary support rod and retractor arm secured along the length of said suction pipe, the retractor arm comprising the lower end of said support rod, and wherein said retractor arm extends beyond the lower end of said suction pipe and at an obtuse angle from said axis.
Claim 2
Dependent Claim
86 words
A suction retraction instrument comprising: an elongated hollow suction pipe having a suction port at its lower end and secured to a manifold at its upper end and having a straight lower portion extending along an axis, and a unitary support rod and retractor arm secured along the length of said suction pipe, the retractor arm comprising the lower end of said support rod, and wherein said retractor arm extends beyond the lower end of said suction pipe and at an obtuse angle from said axis.
Claim 3
Dependent Claim
15 words
The instrument of claim 1 wherein said angle is between about 110° and about 140°.
Claim 4
Dependent Claim
22 words
The instrument of claim 1 wherein said lower pipe portion includes a plurality of elongated slots therealong upwardly from said suction port.
Claim 5
Dependent Claim
20 words
The instrument of claim 3 wherein said lower pipe end comprises an annular flared lip extending downwardly from said port.
Claim 6
Dependent Claim
16 words
The instrument of claim 4 wherein said slots have a lower end terminating at said port.
Claim 7
Dependent Claim
31 words
The instrument of claim 1 wherein said lower pipe end comprises an annular lip having a diameter greater than the distance across said port said port being elevated above said lip.
Claim 8
Dependent Claim
53 words
The instrument of claim 1 wherein said manifold comprises a solid block member having a substantially straight first passageway extending therethrough and communicating with said hollow pipe, and a second passageway joining said first passageway interiorly of said manifold at an acute angle and communicating with an orifice on an upper manifold surface.
Claim 9
Dependent Claim
26 words
The instrument of claim 7 wherein said first and second passageway have a cross-section larger than the cross-section of the interior of said hollow section pipe.
Claim 10
Dependent Claim
24 words
The instrument of claim 7 wherein said first and second passageways have a cross-section at least 11/2 times the cross-section of said pipe interior.
Claim 11
Dependent Claim
22 words
The instrument of claim 7 wherein said second passageway is substantially straight and wherein said acute angle is less than about 45°.
Claim 12
Dependent Claim
62 words
The instrument of claim 7 wherein said manifold has a forward surface to which said suction pipe is secured, said first passageway having a forward portion extending from the junction of said second passageway and a rearward portion extending rearwardly from said junction and wherein the angle between said forward first passageway portion and said second passageway is less than about 30°.
Claim 13
Dependent Claim
38 words
The instrument of claim 11 including a connecting member secured to said manifold opposite said forward surface and having a conduit therein communicating exteriorly thereof and with said first passageway, and means for connecting a suction tube thereto.
References Cited (Backward Citations)
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Cited
US1167062A
Cited
US1621212A
Cited
US3460255A
Cited
US3557456A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |