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US4338944A
Expired / Lapsed
US
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Therapeutic device
Assignee: Kendall Co
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Filing: 1980-06-16
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Granted: 1982-07-13
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Expires: 2000-06-16
Abstract
Abstract A therapeutic device comprising, a sleeve for covering a portion of a patient's body and having a space to receive liquid, a device for circulating a liquid through the space of the sleeve, and a device for cooling the circulated liquid.
Inventors
- 👤 Edward J. Arkans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:57
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/10; F; F25; F25B; F25B21/00; F25B21/02; F25B21/04; A61F2007/0001; A61F2007/0054; A61F2007/0056; A61F2007/0091; A61F7/02; A61F2007/0244; A61F2007/0249
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
181 words
A therapeutic device, comprising: a sleeve for covering a portion of a patient's body and having a pair of opposed flexible liquid impervious walls defining a space to receive liquid, said sleeve having a sheet of substantially nonabsorbent open cell foam in the space between said walls; means for circulating a liquid through said space of the sleeve; and means for selectively heating and cooling the circulated liquid at a location remote from the sleeve comprising a container having opposed metallic walls defining a chamber, a plurality of thermoelectric devices arranged on the outer surfaces of both walls, each thermoelectric device having one side in contact with a chamber wall, heat sink means on each side of the container, each thermoelectric device having a side opposite said one side in contact with said heat sink, a D.C. power supply, and control means for selectively directing current through said thermoelectric devices in one direction, whereby liquid in said chamber is caused to be heated, and in a direction opposite said one direction, whereby liquid in said chamber is caused to be cooled.
Claim 2
Dependent Claim
181 words
A therapeutic device, comprising: a sleeve for covering a portion of a patient's body and having a pair of opposed flexible liquid impervious walls defining a space to receive liquid, said sleeve having a sheet of substantially nonabsorbent open cell foam in the space between said walls; means for circulating a liquid through said space of the sleeve; and means for selectively heating and cooling the circulated liquid at a location remote from the sleeve comprising a container having opposed metallic walls defining a chamber, a plurality of thermoelectric devices arranged on the outer surfaces of both walls, each thermoelectric device having one side in contact with a chamber wall, heat sink means on each side of the container, each thermoelectric device having a side opposite said one side in contact with said heat sink, a D.C. power supply, and control means for selectively directing current through said thermoelectric devices in one direction, whereby liquid in said chamber is caused to be heated, and in a direction opposite said one direction, whereby liquid in said chamber is caused to be cooled.
Claim 3
Dependent Claim
156 words
A therapeutic device, comprising: a sleeve having an elongated conduit arranged in a serpentine configuration and defining a space to receive liquid; means for circulating a liquid through the space of the sleeve; and means for selectively heating and cooling the circulated liquid at a location remote from the sleeve comprising a container having opposed metallic walls defining a chamber, a plurality of thermoelectric devices arranged on the outer surfaces of both walls, each thermoelectric device having one side in contact with a chamber wall, heat sink means on each side of the container, each thermoelectric device having a side opposite said one side in contact with said heat sink, a D.C. power supply, and control means for selectively directing current through said thermoelectric devices in one direction, whereby liquid in said chamber is caused to be heated, and in a direction opposite said one direction, whereby liquid in said chamber is caused to be cooled.
Claim 4
Dependent Claim
156 words
A therapeutic device, comprising: a sleeve having an elongated conduit arranged in a serpentine configuration and defining a space to receive liquid; means for circulating a liquid through the space of the sleeve; and means for selectively heating and cooling the circulated liquid at a location remote from the sleeve comprising a container having opposed metallic walls defining a chamber, a plurality of thermoelectric devices arranged on the outer surfaces of both walls, each thermoelectric device having one side in contact with a chamber wall, heat sink means on each side of the container, each thermoelectric device having a side opposite said one side in contact with said heat sink, a D.C. power supply, and control means for selectively directing current through said thermoelectric devices in one direction, whereby liquid in said chamber is caused to be heated, and in a direction opposite said one direction, whereby liquid in said chamber is caused to be cooled.
Claim 5
Dependent Claim
21 words
The device of claim 1 or 2 including means for applying pressure to the portion of said sleeve containing said space.
Claim 6
Dependent Claim
31 words
The device of claim 3 wherein the pressure applying means comprises a pair of flexible walls in the sleeve outside said space defining a chamber, and means for inflating said chamber.
Claim 7
Dependent Claim
20 words
The device of claim 4 including a sheet of flexible material outside the walls in the sleeve defining said chamber.
Claim 8
Dependent Claim
22 words
The device of claim 3 wherein the pressure applying means comprises a sheet of flexible material in the sleeve outside said space.
Claim 9
Dependent Claim
12 words
The device of claim 6 wherein said sheet comprises an insulation material.
Claim 10
Dependent Claim
14 words
The device of claim 7 wherein said sheet comprises a closed cell foam material.
Claim 11
Dependent Claim
28 words
The device of claim 3 wherein the pressure applying means is located in said sleeve, and including means for securing the sleeve about an extremity of the patient.
Claim 12
Dependent Claim
23 words
The device of claim 1 or 2 including a sheet of flexible material in the sleeve at an inner location relative said space.
Claim 13
Dependent Claim
18 words
The device of claim 1 or 2 including means for applying pressure to the walls of the sleeve.
Claim 14
Dependent Claim
14 words
The device of claim 1 or 2 wherein the circulating means comprises a pump.
Claim 15
Dependent Claim
19 words
The device of claim 12 wherein the circulating means includes conduit means connecting the pump to the sleeve space.
Claim 16
Dependent Claim
19 words
The device of claim 1 or 2 including means for controlling the temperature of the heating and cooling means.
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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) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |