Patent US4873732A successfully refreshed from Google Patents.
US4873732A
Expired / Lapsed
US
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Trauma stretcher
Assignee: Individual
•
Filing: 1988-10-24
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Granted: 1989-10-17
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Expires: 2008-10-24
Abstract
Abstract A trauma stretcher for use in transferring a patient to and from stretcher to bed or operating table. The stretcher includes a wheeled chassis, platform mounted thereon, patient litter slidably positioned atop said platform, extension arms with means for sliding a litter across, and stabilizer legs to prevent tipping.
Inventors
- 👤 Roberto Perez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:29
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1013; A61G7/1019; A61G7/1025; A61G7/103; A61G7/104; A61G7/1046; A61G7/1049; A61G7/1057; A61G7/1063; A61G7/1067; A61G7/1034; Y; Y10; Y10S; Y10S414/00; Y10S414/134
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
195 words
A trauma stretcher for use in transferring a patient to and from stretcher to bed or operating table, comprising: a generally rectangular wheeled chassis frame with a top, bottom, two sides and two ends; a generally flat rectangular platform with top and bottom faces mounted thereon the platform's top face having a plurality of rows of roller bars whereby said rows are parallel to each other and are positioned so that each row is perpendicularly oriented to the platform's longitudinal axis and each individual roller bar is oriented parallel to the platform's longitudinal axis; a rectangular patient litter with top and bottom faces slidably positioned atop said platform; a plurality of extension arms pivotally attached to the sides of said chassis and having means for sliding said litter across; a plurality of stabilizer legs pivotally attached to the sides of said chassis; and a rod with two ends and a plurality of knurled gears formed concentrically about its surface circumference wherein said rod is positioned across the platform's top face in line with the longitudinal axis of the platform and having its ends inserted through top end crossbars forming a portion of the chassis frame.
Claim 2
Dependent Claim
195 words
A trauma stretcher for use in transferring a patient to and from stretcher to bed or operating table, comprising: a generally rectangular wheeled chassis frame with a top, bottom, two sides and two ends; a generally flat rectangular platform with top and bottom faces mounted thereon the platform's top face having a plurality of rows of roller bars whereby said rows are parallel to each other and are positioned so that each row is perpendicularly oriented to the platform's longitudinal axis and each individual roller bar is oriented parallel to the platform's longitudinal axis; a rectangular patient litter with top and bottom faces slidably positioned atop said platform; a plurality of extension arms pivotally attached to the sides of said chassis and having means for sliding said litter across; a plurality of stabilizer legs pivotally attached to the sides of said chassis; and a rod with two ends and a plurality of knurled gears formed concentrically about its surface circumference wherein said rod is positioned across the platform's top face in line with the longitudinal axis of the platform and having its ends inserted through top end crossbars forming a portion of the chassis frame.
Claim 3
Dependent Claim
50 words
A stretcher as recited in claim 1 wherein: the litter has a plurality of rows of teeth-like indentations across its lower face transverse to the longitudinal axis of the litter and so positioned that said rod's knurled gears will engage said indentations when the litter is placed atop the platform.
Claim 4
Dependent Claim
15 words
A stretcher as recited in claim 2 wherein: the rod's ends terminate in turning handles.
Claim 5
Dependent Claim
30 words
A stretcher as recited in claim 3 wherein: said arms are positioned near to the chassis top and are pivotable into the chassis and perpendicular out from a chassis side.
Claim 6
Dependent Claim
43 words
A stretcher as recited in claim 4 wherein: each arm has an upper surface containing a plurality of roller bars oriented so that when each arm is perpendicular to a chassis side each arm roller bar is parallel to the platform roller bars.
Claim 7
Dependent Claim
19 words
A stretcher as recited in claim 5 wherein: said chassis has contained within a plurality of vertical support struts.
Claim 8
Dependent Claim
41 words
A stretcher as recited in claim 6 wherein: each stabilizer leg has two ends, one end braced against a ground surface when the leg is extended and the other end pivotally connected to the bottom of a said vertical support strut.
Claim 9
Dependent Claim
25 words
A stretcher as recited in claim 7 wherein: each arm has an innermost end pivotally connected to the top of a said vertical support strut.
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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) | 1992-10-16 | 1993-04-17 | 1993-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-16 | 1997-04-17 | 1997-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-16 | 2001-04-17 | 2001-10-17 | $7700.00 | Window Closed / Lapsed |