Devices, methods, and systems for the treatment and/or monitoring of damaged tissue
Inventors
Lawson, Daryl • Arena, Christopher Brian
Assignees
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Abstract
Disclosed are methods, devices, and systems for treatment of an abnormal wound healing response. The methods, devices, and systems can be used to treat solid ulcerated tissue, such as diabetic foot ulcers (DFUs), arthritic tissue, muscle soreness, joint pain, varicose veins, obesity, and peripheral artery disease. Additionally, the methods, devices, and systems can promote the healing of xenograft, allograft, autograft, or engineered tissue following reconstruction surgery. The methods, devices, and systems include the ability to determine an optimal set of pulse parameters that are specific to wound healing. In embodiments, the methods, devices, and systems include components for guiding the user on electrode placement based on anatomical or electrical measurements, delivering a custom series of electric pulses, applying heat, and using feedback from physiologic measurements to control the device.
Core Innovation
The disclosed invention provides a therapeutic device for an area of a patient that includes skin and damaged tissue forming an ulcer. The device includes a covering configured to form a sleeve conforming to and enclosing a portion of the patient's body, with a patient touching side made of a material comfortable to the touch and configured to adhere poorly to wounds, and a heating component that generates heat to apply and transfer heat to the area through the skin adjacent the damaged tissue while warming the patient's body beyond the area.
The heating component is adapted to raise the temperature of the portion of the patient's body above the patient's normal body temperature range so as to increase blood flow or blood perfusion in the portion of the patient's body and thereby in the area and damaged tissue. A plurality of electrodes is adapted to apply electrical pulse stimulation to the portion of the patient's body spaced from the ulcer, together with an electrical pulse generator configured to generate electrical pulses that induce neuromuscular stimulation (NMES) or microtens (MCT) stimulation.
The device includes a sensor to detect blood flow or blood perfusion in the area of the damaged tissue. A control unit communicates with the sensor and the heating component and is configured to control the heating component to adjust heat based on input from the sensor, and in related implementations controls the pulse generator and the heating component to apply heat and electrical stimulation at the same time.
Claims Coverage
The provided excerpt includes three independent claims (1, 9, and 13). Across these claims, the inventive coverage centers on an enclosed sleeve with a heating component used to warm beyond the ulcer area, combined with spaced-from-ulcer electrical pulse stimulation producing NMES or MCT, together with sensor detection of blood flow or perfusion and control that adjusts heat and/or electrical pulses based on sensor input.
Ulcer-encasing comfortable sleeve with heating beyond the ulcer area
A covering configured to form a sleeve with a shape to conform to and enclose a portion of the patient's body, with a patient touching side made from a material comfortable to the touch and configured to adhere poorly to wounds, and including a heating component having a heat source that generates heat to apply and transfer the heat to the area through the skin adjacent the damaged tissue, where the heating component covers and encloses the portion of the patient's body to warm the patient's body beyond the area and raise the temperature above the patient's normal body temperature range.
Spaced-from-ulcer electrodes delivering NMES or microtens stimulation
A plurality of electrodes adapted to apply electrical pulse stimulation to the portion of the patient's body spaced from the ulcer, and an electrical pulse generator configured to generate electrical pulses that induce neuromuscular stimulation (NMES) or microtens (MCT) stimulation.
Blood flow/perfusion sensing and sensor-controlled heating
A sensor to detect blood flow or blood perfusion in the area of the damaged tissue, and a control unit in communication with the sensor and the heating component configured to control the heating component to adjust the heat based on input from the sensor to increase blood flow or blood perfusion.
Simultaneous heat and electrical stimulation under control
A control unit configured to control the pulse generator and the heating component to apply heat and electrical stimulation at the same time to increase blood flow or blood perfusion.
Across claims 1, 9, and 13, the independent coverage combines a sleeve-form covering with heating above normal temperature, spaced-from-ulcer electrical pulse stimulation inducing NMES or microtens stimulation, and blood flow or perfusion sensing with control that adjusts heating and/or electrical pulses based on sensor input.
Stated Advantages
Increases blood flow or blood perfusion in the portion of the patient's body and thereby in the area and damaged tissue of the patient.
Maintains the portion of the patient's body in a temperature range above the patient's normal temperature to thereby increase blood flow or blood perfusion.
Documented Applications
Therapeutic treatment for damaged tissue forming an ulcer, including diabetic foot ulcers (DFUs), using a device that globally raises limb temperature and applies electrical pulse stimulation.
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