Compression device, system and method of use
First Claim
1. A compression device for cyclically compressing the limb of a patient to improve blood flow in the limb, the compression device comprising:
- a compressive section sized and shaped for extending generally circumferentially around a portion of the limb for applying compressive circumferential pressure to the limb portion;
a housing operatively connected to the compressive section, said housing including first and second rigid housing members combining to define an interior housing space, said first and second rigid housing members being movable relative to each other between a contracted position in which the housing has a first dimension for relaxing said circumferential pressure on said limb portion, and an expanded position in which the housing has a second dimension greater than said first dimension for compressing the limb portion circumferentially of the limb portion; and
a non-pneumatic mechanical actuator comprising an electric motor in said interior housing space for cyclically moving the first and second housing members from said contracted position to said expanded position.
3 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and methods for cyclically compressing the limb of a patient to improve blood flow in the limb. In one embodiment, a compression device includes a compressive section sized and shaped for extending around a portion of the limb for applying compressive pressure and a housing operatively connected to the compressive section. The housing includes first and second housing members movable relative to each other between contracted and expanded positions. A non-pneumatic mechanical actuator is provided in the housing for cyclically moving the first and second housing members from their contracted position to their expanded position.
144 Citations
45 Claims
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1. A compression device for cyclically compressing the limb of a patient to improve blood flow in the limb, the compression device comprising:
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a compressive section sized and shaped for extending generally circumferentially around a portion of the limb for applying compressive circumferential pressure to the limb portion; a housing operatively connected to the compressive section, said housing including first and second rigid housing members combining to define an interior housing space, said first and second rigid housing members being movable relative to each other between a contracted position in which the housing has a first dimension for relaxing said circumferential pressure on said limb portion, and an expanded position in which the housing has a second dimension greater than said first dimension for compressing the limb portion circumferentially of the limb portion; and a non-pneumatic mechanical actuator comprising an electric motor in said interior housing space for cyclically moving the first and second housing members from said contracted position to said expanded position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A compression device for cyclically compressing the limb of a patient to improve blood flow in the limb, the compression device comprising:
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a compressive section comprising a generally annular band sized and shaped for extending generally circumferentially around a portion of the limb for applying compressive pressure to the limb portion; a housing operatively connected to the compressive section, said housing including first and second housing members combining to define an interior housing space, said first and second housing members being movable relative to each other between a contracted position in which the housing has a first dimension for relaxing pressure on said limb portion, and an expanded position in which the housing has a second dimension greater than said first dimension for compressing the limb portion; and a non-pneumatic mechanical actuator comprising an electric motor in said interior housing space for cyclically moving the first and second housing members from said contracted position to said expanded position, and a pocket on an interior surface of the band for removably receiving said housing therein.
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26. A compression system for cyclically compressing the limb or limbs of a patient to improve blood flow in each of said limbs, the compression system comprising:
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at least two compressive devices for cyclically compressing portions of said limb or limbs, each compressive device comprising; a compressive section sized and shaped for extending generally circumferentially around a respective limb portion for applying circumferential pressure to the limb portion, a housing operatively connected to the compressive section, said housing including a first rigid housing member and a second rigid housing member combining to enclose an interior housing space, said first and second rigid housing members being movable relative to each other between a contracted position in which the housing has a first dimension for relaxing said circumferential pressure on said limb portion, and an expanded position in which the housing has a second dimension greater than said first dimension for compressing the limb portion circumferentially of the limb portion, and a non-pneumatic actuator comprising an electric motor housed in said interior housing space for cyclically moving the first and second housing members from said contracted position to said expanded position. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method of using a compression device to cyclically compress the limb of a patient to improve blood flow in the limb, said compression device comprising a compressive section sized and shaped for extending generally circumferentially around a portion of the limb for applying compressive circumferential pressure to the limb portion, and a housing operatively connected to the compressive section, said housing including first and second rigid housing members combining to enclose an interior housing space, said first and second rigid housing members being movable relative to each other between a contracted position in which the housing has a first dimension and an expanded position in which the housing has a second dimension greater than said first dimension, said method comprising the steps of:
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applying said compression device to said limb such that said compressive section extends circumferentially around said limb portion; and cyclically activating a mechanical non-pneumatic actuator comprising an electric motor housed in said interior housing space to move the rigid housing members from said contracted position to said expanded position in a series of cycles to cyclically compress said limb portion circumferentially of the limb portion. - View Dependent Claims (38, 39, 40, 41)
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42. A method of using a compression system to cyclically compress portions of a limb of a patient to improve blood flow in the limb, said compression system comprising a compressive unit having zones corresponding to different portions of a limb, and at least two modules each comprising a housing including first and second rigid housing members combining to enclose an interior housing space, said first and second rigid housing members being movable relative to each other between a contracted position in which the housing has a first dimension and an expanded position in which the housing has a second dimension greater than said first dimension, and a mechanical non-pneumatic actuator comprising an electric motor housed in said interior housing space to move the housing members from said contracted position to said expanded position, said method comprising the steps of:
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applying the compressive unit to a limb such that the compressive unit extends circumferentially around the limb and the zones of the unit correspond with said limb portions to be cyclically compressed; operatively connecting the at least two modules to said compressive unit such that the modules are positioned in respective zones of the compressive unit; and causing said housing members to move cyclically between said expanded and retracted positions for cyclically compressing said limb portions circumferentially of the limb portions. - View Dependent Claims (43, 44, 45)
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Specification