Wound care devices, apparatus, and treatment methods
First Claim
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1. A wound care device comprising:
- a vacuum port for supplying a vacuum source to an external element;
an oxygen port for supplying oxygen gas to another external element;
an oxygen concentrating device fluidly connected to the oxygen port, the oxygen concentrating device comprisesa first membrane electrode assembly (MEA) for the production of oxygen from air, which comprisesa first electrode fluidly connected to ambient air,a second electrode spaced from the first electrode, the second electrode being fluidly connected to a first basin such that the first basin is fluidly connected to the oxygen port,a first ion conducting membrane positioned between the first and second electrodes,a first conductive wire connected to the first electrode, anda second conductive wire connected to the second electrode, such that the application of a constant electrical current through the first conductive wire to the second conductive wire electrochemically concentrates oxygen on the second electrode from ambient air adjacent the first electrode;
an oxygen consuming device fluidly connected to the oxygen port, the oxygen consuming device comprisesa second MEA for the removal of oxygen from a gaseous mixture, which comprisesa third electrode fluidly connected to the first basin,a fourth electrode spaced from the third electrode,a second ion conducting membrane positioned between the third and fourth electrodes,a third conductive wire connected to the third electrode, anda fourth conductive wire connected to the fourth electrode, such that the application of a constant voltage across the third conductive wire and the fourth conductive wire electrochemically consumes oxygen from the first basin at the third electrode;
a mechanical pump which comprisesa pump intake fluidly connected to the vacuum port, anda motor for driving the mechanical pump, such that the motor drives the mechanical pump to evacuate a gaseous mixture at an ambient temperature ranging from 60°
F. to 100°
F. and an ambient pressure ranging from 660 mmHg absolute to 760 mmHg absolute at a volumetric flow rate ranging from 1 cc/min to 2,500 cc/min while maintaining a vacuum at the pump intake, the vacuum ranging from 1 mmHg to 680 mmHg;
a pressure sensor fluidly connected with the vacuum port;
a microcontroller electrically connected to the first MEA, the second MEA, the motor, and the pressure sensor, the microcontroller being configured to regulate operation of the wound care device in a plurality of operational modes which comprisea first operational mode in which the first MEA delivers oxygen to the oxygen port at a rate ranging from 1 ml oxygen/hr to 10 ml oxygen/hr, at an ambient temperature ranging from 60°
F. to 100°
F. and an ambient pressure of 760 mmHg;
a second operational mode in which the second MEA consumes oxygen from the oxygen port, anda third operational mode in which the mechanical pump evacuates a gaseous mixture from the vacuum port at a volumetric flow rate ranging from 1 cc/min to 2,500 cc/min while maintaining a vacuum ranging from 560 mmHg to 680 mmHg.
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Abstract
A wound care device for delivering topical oxygen therapy, negative pressure wound therapy, and a low intensity vacuum therapy for treatment of a wound. The wound care device may include an oxygen supply MEA, an oxygen consuming MEA, a vacuum pump and motor, a pressure sensor, and a power supply and electronic controls. A dressing may be connected to the wound care device for administering topical continuous oxygen therapy and simultaneous negative pressure wound therapy to a wound. A canister or exudate trap may be positioned between the dressing and the vacuum supply port of the vacuum pump to collect and store exudates from the wound. The canister may be combined with the dressing.
96 Citations
24 Claims
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1. A wound care device comprising:
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a vacuum port for supplying a vacuum source to an external element; an oxygen port for supplying oxygen gas to another external element; an oxygen concentrating device fluidly connected to the oxygen port, the oxygen concentrating device comprises a first membrane electrode assembly (MEA) for the production of oxygen from air, which comprises a first electrode fluidly connected to ambient air, a second electrode spaced from the first electrode, the second electrode being fluidly connected to a first basin such that the first basin is fluidly connected to the oxygen port, a first ion conducting membrane positioned between the first and second electrodes, a first conductive wire connected to the first electrode, and a second conductive wire connected to the second electrode, such that the application of a constant electrical current through the first conductive wire to the second conductive wire electrochemically concentrates oxygen on the second electrode from ambient air adjacent the first electrode; an oxygen consuming device fluidly connected to the oxygen port, the oxygen consuming device comprises a second MEA for the removal of oxygen from a gaseous mixture, which comprises a third electrode fluidly connected to the first basin, a fourth electrode spaced from the third electrode, a second ion conducting membrane positioned between the third and fourth electrodes, a third conductive wire connected to the third electrode, and a fourth conductive wire connected to the fourth electrode, such that the application of a constant voltage across the third conductive wire and the fourth conductive wire electrochemically consumes oxygen from the first basin at the third electrode; a mechanical pump which comprises a pump intake fluidly connected to the vacuum port, and a motor for driving the mechanical pump, such that the motor drives the mechanical pump to evacuate a gaseous mixture at an ambient temperature ranging from 60°
F. to 100°
F. and an ambient pressure ranging from 660 mmHg absolute to 760 mmHg absolute at a volumetric flow rate ranging from 1 cc/min to 2,500 cc/min while maintaining a vacuum at the pump intake, the vacuum ranging from 1 mmHg to 680 mmHg;a pressure sensor fluidly connected with the vacuum port; a microcontroller electrically connected to the first MEA, the second MEA, the motor, and the pressure sensor, the microcontroller being configured to regulate operation of the wound care device in a plurality of operational modes which comprise a first operational mode in which the first MEA delivers oxygen to the oxygen port at a rate ranging from 1 ml oxygen/hr to 10 ml oxygen/hr, at an ambient temperature ranging from 60°
F. to 100°
F. and an ambient pressure of 760 mmHg;a second operational mode in which the second MEA consumes oxygen from the oxygen port, and a third operational mode in which the mechanical pump evacuates a gaseous mixture from the vacuum port at a volumetric flow rate ranging from 1 cc/min to 2,500 cc/min while maintaining a vacuum ranging from 560 mmHg to 680 mmHg. - 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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Specification
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Current AssigneeNeogenix, Llc
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Original AssigneeNeogenix, Llc
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InventorsSarangapani, Srinivasan, Cali, Lawrence J.
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Primary Examiner(s)Zalukaeva, Tatyana
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Assistant Examiner(s)Mensh, Andrew J
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Application NumberUS14/819,640Publication NumberTime in Patent Office782 DaysField of Search604543, 604540US Class CurrentCPC Class CodesA61F 13/05 specially adapted for use w...A61F 2013/0017 possibility of applying fluidA61M 1/85 with gas or fluid supply me...A61M 1/94 with gas supply meansA61M 1/96 Suction control thereofA61M 1/962 having pumping means on the...A61M 1/98 Containers specifically ada...A61M 35/30 Gas therapy for therapeutic...
