Granted Patent B2

US 12,290,352 · App. 18/386,491 · Granted May 6, 2025

Inventors: Varuni Rachindra Brownhill (Swanland, GB); Victoria Jody Hammond (Hull, GB); Allan Kenneth Frazer Grugeon Hunt (Beverley, GB); Charlotte Urwin (Hull, GB)

Assignee: Smith & Nephew PLC

A61B5/1109A61B5/1032A61B5/1104A61B5/395A61B5/445A61B5/4836A61B5/4842A61B5/4848A61B5/6802A61F13/02A61N1/0456A61N1/0468A61N1/0476A61B2562/0219

Abstract

Claims (37)

1. A wound treatment apparatus comprising:

an electrical stimulator configured to apply an electrical stimulation to a patient; and

an electronic control circuitry coupled to the electrical stimulator, the electronic control circuitry configured to:

operate the electrical stimulator to apply an electrical stimulation;

adjust the electrical stimulation based on a stimulation response of the patient that includes at least one of nerve conduction velocity or a property of a nerve signal;

determine one or more wound characteristics based on a nerve response in at least a portion of a wound of the patient; and

provide an indication of the one or more wound characteristics.

2. The wound treatment apparatus of claim 1 , wherein the electronic control circuitry is further configured to determine the nerve response in at least the portion of the wound based on at least one of the electrical stimulation or the stimulation response.

3. The wound treatment apparatus of claim 1 , wherein the stimulation response further includes at least one of patient movement responsive to the electrical stimulation or an electrical signal that is reactive to the electrical stimulation.

4. The wound treatment apparatus of claim 1 , further comprising a wound dressing configured to be positioned over the wound, the wound dressing supporting the electrical stimulator.

5. The wound treatment apparatus of claim 1 , wherein the electrical stimulator comprises a plurality of electrodes, and wherein the electronic control circuitry is configured to operate each electrode in turn and identify an electrode that causes the greatest muscle contraction.

6. The wound treatment apparatus of claim 5 , wherein the electronic control circuitry is configured to determine the one or more wound characteristics further based on the stimulation response to the electrical stimulation from the electrode identified as causing the greatest muscle contraction.

7. The wound treatment apparatus of claim 5 , further comprising a wound dressing configured to be positioned over the wound, the wound dressing supporting the electrical stimulator, wherein the plurality of electrodes are mounted on the wound dressing as an array.

8. The wound treatment apparatus of claim 1 , wherein the electronic control circuitry is further configured to reduce intensity of or pause the electrical stimulation responsive to patient movement satisfying one or more movement thresholds.

9. The wound treatment apparatus of claim 1 , wherein the electronic control circuitry is further configured to determine one or more areas of neuropathy or nerve growth in the wound based on the one or more wound characteristics, and wherein the indication of the one or more wound characteristics comprises a visual map of the one or more areas of neuropathy or nerve growth.

10. The wound treatment apparatus of claim 1 , wherein the electrical stimulator is further configured to detect the stimulation response.

11. The wound treatment apparatus of claim 1 , wherein the electronic control circuitry is configured to adjust the electrical stimulation responsive to a determination that the stimulation response does not satisfy a stimulation response threshold.

12. The wound treatment apparatus of claim 1 , wherein the electronic control circuitry is further configured to determine the nerve response in at least the portion of the wound based on the stimulation response.

13. The wound treatment apparatus of claim 1 , wherein the one or more wound characteristics comprise an indication of a nerve health, and wherein the indication of the one or more wound characteristics comprises a map corresponding to the nerve health.

14. A wound treatment apparatus comprising:

an electrical stimulator comprising a plurality of electrodes configured to apply an electrical stimulation to a patient; and

an electronic control circuitry coupled to the electrical stimulator, the electronic control circuitry configured to:

operate the electrical stimulator to apply an electrical stimulation by operating each electrode of the plurality of electrodes in turn;

identify an electrode of the plurality of electrodes that causes the greatest muscle contraction;

determine one or more wound characteristics of a wound of a patient based on a stimulation response to the electrical stimulation from the electrode identified as causing the greatest muscle contraction; and

provide an indication of the one or more wound characteristics.

15. The wound treatment apparatus of claim 14 , wherein the one or more wound characteristics comprise an indication of a nerve health, and wherein providing the indication of the one or more wound characteristics comprises displaying a map corresponding to the nerve health.

16. A method of operating a wound treatment apparatus, the method comprising:

applying an electrical stimulation to a patient;

adjusting the electrical stimulation based on a stimulation response of the patient that includes at least one of nerve conduction velocity or a property of a nerve signal;

determining one or more wound characteristics based on a nerve response in at least a portion of a wound of the patient; and

providing an indication of the one or more wound characteristics,

wherein the method is performed under control of an electronic control circuitry of the wound treatment apparatus.

17. The method of claim 16 , wherein the stimulation response further includes at least one of patient movement responsive to the electrical stimulation or an electrical signal that is reactive to the electrical stimulation.

18. The method of claim 16 , further comprising reducing intensity of or pausing the electrical stimulation responsive to patient movement satisfying one or more movement thresholds.

19. The method of claim 16 , further comprising determining the nerve response in at least the portion of the wound based on the stimulation response.

20. The method of claim 16 , wherein the one or more wound characteristics comprise an indication of a nerve health, and wherein the indication of the one or more wound characteristics comprises a map corresponding to the nerve health.

Continuity (3)

References Cited (400)