AMBULATORY NEGATIVE PRESSURE THERAPEUTICAL COMPRESSION DEVICE
First Claim
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1. A device for administering negative pressure to a subject, comprising:
- a sock formed at least partially of a flexible air impermeable layer, the sock configured to receive a limb of the subject;
one or more sealing elements configured to form one or more substantially air tight chambers, the one or more substantially air tight chambers formed at least partially by the flexible air impermeable layer;
a pump that is pneumatically coupled to each of the one or more substantially air tight chambers; and
a controller configured to operate the pump to selectively evacuate air from, and lower a pressure level in, at least one of the one or more substantially air tight chambers, wherein the controller is configured to operate the pump at a substantially constant rate.
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Abstract
Embodiments of the present invention relate to medical devices and treatments for chronic venous insufficiency, open ulceration and related medical conditions, and more particularly to a device and treatment incorporating negative pressure compression to the foot and lower leg or other appendage of a patient.
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Citations
25 Claims
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1. A device for administering negative pressure to a subject, comprising:
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a sock formed at least partially of a flexible air impermeable layer, the sock configured to receive a limb of the subject; one or more sealing elements configured to form one or more substantially air tight chambers, the one or more substantially air tight chambers formed at least partially by the flexible air impermeable layer; a pump that is pneumatically coupled to each of the one or more substantially air tight chambers; and a controller configured to operate the pump to selectively evacuate air from, and lower a pressure level in, at least one of the one or more substantially air tight chambers, wherein the controller is configured to operate the pump at a substantially constant rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for administering negative pressure to a subject, comprising:
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placing a sock on a limb of a subject, the sock formed at least partially of a flexible air impermeable layer, wherein the flexible air impermeable layer includes one or more sealing elements configured to form one or more substantially air tight chambers between the flexible air impermeable layer and the subject; and using a pump pneumatically coupled to each of the one or more substantially air tight chambers to selectively evacuate and draw a negative pressure in at least one of the one or more substantially air tight chambers. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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Specification