NZ795115B2 - Bisymmetric comparison of sub-epidermal moisture values - Google Patents
Bisymmetric comparison of sub-epidermal moisture valuesInfo
- Publication number
- NZ795115B2 NZ795115B2 NZ795115A NZ79511518A NZ795115B2 NZ 795115 B2 NZ795115 B2 NZ 795115B2 NZ 795115 A NZ795115 A NZ 795115A NZ 79511518 A NZ79511518 A NZ 79511518A NZ 795115 B2 NZ795115 B2 NZ 795115B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- location
- sem
- biocapacitance
- measurements
- values
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
- A61B2560/0462—Apparatus with built-in sensors
- A61B2560/0468—Built-in electrodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/04—Arrangements of multiple sensors of the same type
- A61B2562/046—Arrangements of multiple sensors of the same type in a matrix array
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0531—Measuring skin impedance
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0537—Measuring body composition by impedance, e.g. tissue hydration or fat content
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
- A61B5/445—Evaluating skin irritation or skin trauma, e.g. rash, eczema, wound, bed sore
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6823—Trunk, e.g., chest, back, abdomen, hip
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6829—Foot or ankle
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6843—Monitoring or controlling sensor contact pressure
Abstract
method for identifying damaged tissue. The method comprises obtaining a first plurality of biocapacitance measurements at a first location on a patient’s skin and obtaining a second plurality of biocapacitance measurements at a second location on a patient’s skin that is bisymmetric relative to the first location. The method further comprises converting each of the first and second pluralities of biocapacitance measurements to a first and second pluralities of sub-epidermal moisture (SEM) values; determining a first average SEM value from the first plurality of SEM values and a second average SEM value from the second plurality of SEM values. The method also comprises determining a difference between the first and second average SEM values and determining that the tissue is damaged at the location with the larger average SEM value if the difference is greater than a predetermined threshold.
Claims (17)
1. A method for measuring sub-epidermal moisture (SEM) values, the method comprising: a) obtaining a first plurality of biocapacitance measurements at a first location on a patient’s skin; b) obtaining a second plurality of biocapacitance measurements at a second location on a patient’s skin that is bisymmetric relative to the first location; c) transferring information about the first plurality of biocapacitance measurements and the second plurality of biocapacitance measurements to an SEM application running on a processor; d) converting in the processor each of the first plurality of biocapacitance measurements to a first plurality of SEM values; e) converting in the processor each of the second plurality of biocapacitance measurements to a second plurality of SEM values; f) determining a first average SEM value from the first plurality of SEM values; g) determining a second average SEM value form the second plurality of SEM values; and h) determining a difference between the first average SEM value and the second average SEM value.
2. The method of claim 1, wherein the first plurality and the second plurality of biocapacitance measurements are obtained simultaneously.
3. The method of claim 1, wherein the first plurality and the second plurality of biocapacitance measurements are obtained sequentially.
4. The method of claim 1, wherein the first location and the second location are on the left and the right heel respectively.
5. The method of claim 1, wherein the first location and the second location are on the left and the right foot respectively.
6. The method of claim 1, wherein the first location and the second location are on the left and the right sides of the lower back respectively.
7. The method of claim 1, wherein the first location and the second location are at the sacrum on the left and the right side respectively.
8. The method of claim 1, wherein the first location is an first anatomical region and the second location is a second anatomical region that is bisymmetric relative to the first anatomical region.
9. A method for measuring sub-epidermal moisture (SEM) values, the method comprising: a) obtaining a first biocapacitance measurement at a first location on a patient’s skin; b) obtaining a second biocapacitance measurement at a second location on a patient’s skin that is bisymmetric relative to the first location; c) transferring information about the first biocapacitance measurement and the second biocapacitance measurement to an SEM application running on a processor; d) converting in the processor the first and second biocapacitance measurements to a first and a second SEM value respectively; and e) determining a difference between the first SEM value and the second SEM value.
10. The method of claim 9, wherein the first and the second biocapacitance measurements are obtained simultaneously.
11. The method of claim 9, wherein the first and the second biocapacitance measurements are obtained sequentially.
12. The method of claim 9, wherein the first location and the second location are on the left and the right heel respectively.
13. The method of claim 9, wherein the first location and the second location are on the left and the right foot respectively.
14. The method of claim 9, wherein the first location and the second location are on the left and the right sides of the lower back respectively.
15. The method of claim 9, wherein the first location and the second location are at the sacrum on the left and the right side respectively.
16. A method for measuring sub-epidermal moisture (SEM) values, the method comprising: a) obtaining a first measurement of an electrical property at a first location on a patient’s skin; b) obtaining a second measurement of the electrical property at a second location on a patient’s skin that is bisymmetric relative to the first location; c) transferring information about the first and second measurements of the electrical property to an SEM application running on a processor; d) converting in the processor the first and second measurements of the electrical property to a first SEM value and a second SEM value respectively; and e) determining a difference between the first SEM value and the second SEM value.
17. The method of claim 16, wherein the electrical property is biocapacitance. Bruin Biometrics, LLC By the Attorneys for the Applicant SPRUSON & FERGUSON
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762454455P | 2017-02-03 | 2017-02-03 | |
| US201762521871P | 2017-06-19 | 2017-06-19 | |
| NZ773459A NZ773459B2 (en) | 2018-02-02 | Bisymmetric comparison of sub-epidermal moisture values |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ795115A NZ795115A (en) | 2025-07-25 |
| NZ795115B2 true NZ795115B2 (en) | 2025-10-29 |
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