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US5172689A Expired / Lapsed US ⏱️ 0.0 years remaining

Cryogenic sleeve for providing therapeutic compression

Assignee: Individual
•
Filing: 1990-03-01
•
Granted: 1992-12-22
•
Expires: 2010-03-01
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Abstract

Abstract A device for applying cryogenic compression for use in diminishing hemorrhage and edema in acute trauma of body extremities is formed by a sleeve having a plurality of adjacent non-communicating cryogenic chambers and a plurality of coextensive pressure chambers, there being a pressure chamber for each cryogenic chamber. There are fill openings for each cryogenic chamber and inlets for each pressure chamber. A pump is connected to all of the pressure chamber inlets to apply intermittent pressure to one or more of the pressure chambers to thereby apply intermittent cryogenic pressure to an area of a body extremity coextensive with one or more of the cryogenic chambers.

Inventors

  • 👤 Christopher A. Wright

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 09:32
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/10; A61F2007/0001; A61F2007/0018; A61F2007/0028; A61F2007/0091; A61F7/02; A61F2007/0268

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 189 words
A cryogenic device for use in diminishing hemorrhage and edema in acute trauma of body extremities includes a sleeve with longitudinal extending sides having a plurality of adjacent non-communicating cryogenic chambers, a fill opening for each cryogenic chamber, a plurality of pressure chambers, with each pressure chamber having an inlet and being generally coextensive with and exterior of a cryogenic chamber, said sleeve cryogenic chambers and coextensive pressure chambers being formed by a sleeve inner wall and a coextensive sleeve outer wall, each of which extends over the entire area of the sleeve, said sleeve inner and outer walls being peripherally joined, intermediate wall means separating each cryogenic chamber from its coextensive pressure chamber, said inner and outer walls and intermediate wall means being joined along longitudinal spaced laterally extending seams to form said plurality of coextensive cryogenic and pressure chambers, a pump connected to all of said pressure chamber inlets and formed and adapted to apply pressure intermittently to one or more of said pressure chambers to thereby apply intermittent cryogenic pressure to an area of a body extremity coextensive with one or more of said cryogenic chambers.
Claim 2
Dependent Claim 189 words
A cryogenic device for use in diminishing hemorrhage and edema in acute trauma of body extremities includes a sleeve with longitudinal extending sides having a plurality of adjacent non-communicating cryogenic chambers, a fill opening for each cryogenic chamber, a plurality of pressure chambers, with each pressure chamber having an inlet and being generally coextensive with and exterior of a cryogenic chamber, said sleeve cryogenic chambers and coextensive pressure chambers being formed by a sleeve inner wall and a coextensive sleeve outer wall, each of which extends over the entire area of the sleeve, said sleeve inner and outer walls being peripherally joined, intermediate wall means separating each cryogenic chamber from its coextensive pressure chamber, said inner and outer walls and intermediate wall means being joined along longitudinal spaced laterally extending seams to form said plurality of coextensive cryogenic and pressure chambers, a pump connected to all of said pressure chamber inlets and formed and adapted to apply pressure intermittently to one or more of said pressure chambers to thereby apply intermittent cryogenic pressure to an area of a body extremity coextensive with one or more of said cryogenic chambers.
Claim 3
Dependent Claim 27 words
The cryogenic device of claim 1 wherein each of said cryogenic chambers includes a plurality of dividers separating each cryogenic chamber into a plurality of communicating subchambers.
Claim 4
Dependent Claim 34 words
The cryogenic device of claim 1 wherein said intermediate wall means is sealingly attached along a plurality of longitudinally spaced laterally extending locations to form a plurality of communicating subchambers within each crygoenic chamber.
Claim 5
Dependent Claim 22 words
The cryogenic device of claim 3 further wherein each of said subchambers terminates short of the longitudinally extending sides of said sleeve.
Claim 6
Dependent Claim 18 words
The cryogenic device of claim 1 fastening means for use in connecting opposite longitudinal edges of said sleeve.

References Cited (Backward Citations)

US3871381A Cited
US3901225A Cited
US4338944A Cited
US5074285A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-12-22 1996-06-22 1996-12-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-12-22 2000-06-22 2000-12-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-12-22 2004-06-22 2004-12-22 $7700.00 Window Closed / Lapsed

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