Fitting of compression garment

• US 8,257,289 B2
• Filed: 02/03/2010
• Issued: 09/04/2012
• Est. Priority Date: 02/03/2010
• Status: Active Grant

• Current Assignee: Kpr U.S., LLC (Cardinal Health, Inc.)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Vess, Mark A.
• Primary Examiner(s): VU, QUYNH-NHU HOANG
• Application Number:
  US12/699,610
• Publication Number:
  US 20110190675A1
• Time in Patent Office: 944 Days
• Field of Search: 601/1, 601/27, 601/136, 601/143, 601148-152, 601/166, 602/13, 738/658, 324/245
• US Class Current: 601/152
• CPC Class Codes: A61F 13/085 Openable readjustable
• CPC Class Codes: A61H 2201/1647 the anatomy of a particular individual
• CPC Class Codes: A61H 2201/5007 computer controlled
• CPC Class Codes: A61H 2201/5064 Position sensors
• CPC Class Codes: A61H 9/0092 Cuffs therefor

Abstract

Optimizing fit of a compression garment for use with a patient receiving compression therapy. Sensors formed on the garment detect characteristics of the fit of the garment in the vicinity of each sensor. The fit sensors may be capacitive disks imprinted on the garment. A controller computes overall fit of the garment on the patient based on signals from the sensors.

Claims

1. A system for applying compression treatment comprising:

a garment for placement on a body part of a wearer, said garment comprising one or more selectively inflatable bladders for applying compression to the body part upon inflation;

at least one capacitive sensor formed on the garment, said sensor generating a signal indicative of a gap between the garment and the body part when the garment is placed thereon; and

a compression control unit for selectively inflating said one or more bladders, said control unit comprising;

one or more processors receiving and responsive to the signal from the capacitive sensor for evaluating an overall fit of the garment on the body part based on the gap between the garment and the body part.

2. The compression system of claim 1, wherein the capacitive sensor is a printed-on conductive element formed on the garment.

3. The compression system of claim 1, wherein each inflatable bladder has at least one capacitive sensor formed thereon.

4. The compression system of claim 1, wherein the garment comprises one or more areas of local fit, and wherein each area of local fit has at least one corresponding capacitive sensor formed thereon.

5. The compression system of claim 4, wherein an adjustable fastener is formed near each capacitive sensor to adjust the local fit of the garment in the vicinity of the corresponding capacitive sensor.

6. The compression system of claim 5, where the adjustable fastener comprises at least one of the following:

a hook and loop strap, a looped hook and loop strap, a hook and loop wrap, and a belt and buckle.

7. The compression system of claim 1, wherein the control unit further comprises a radio frequency (RF) signal generator for transmitting RF signals to each capacitive sensor.

8. The compression system of claim 7, wherein each capacitive sensor generates RF absorption current as a function of the gap between the capacitive sensor and the body part, said RF absorption current being indicative of local fit of the garment in the vicinity of the capacitive sensor.

9. The compression system of claim 7, wherein each capacitive sensor forms an oscillator circuit with the RF signal generator, wherein a resonant frequency of the oscillator circuit varies as a function of the gap between the capacitive sensor and the body part, said resonant frequency being indicative of local fit of the garment in the vicinity of the capacitive electrode.

10. The compression system of claim 1, wherein the control unit further comprises a fit indicator.

11. The compression system of claim 10, wherein the fit indicator comprises a plurality of visual indicators, each of said visual indicators corresponding to one of the capacitive sensors and being indicative of local fit of the garment in the vicinity of the corresponding capacitive sensor.

12. The compression system of claim 11, wherein the visual indicator is a light emitting diode.

13. The compression system of claim 10, wherein the fit indicator is an audible tone that increases in pitch as a function of overall fit of the garment.

14. The compression system of claim 1 comprising:

a plurality of said capacitive sensors formed on the garment, each of said capacitive sensors generating a signal indicative of a gap between the garment and the body part when the garment is placed thereon, said sensors defining one or more areas of local fit specified for proper operation, said areas each having at least one of the plurality of capacitive sensors formed thereon, wherein the generated signal from each of the capacitive sensors is indicative of a gap between the garment and the body part in the respective area of local fit;

said one or more processors configured for indicating proper fit of each of the one or more areas of local fit on the body part as a function of the generated signals from the plurality of capacitive sensors and thereby improving efficacy of compression treatment.

15. The compression system of claim 14, wherein the capacitive sensors are printed-on conductive elements formed on the compressive garment.

16. The compression system of claim 14, wherein an adjustable fastener is formed near each capacitive sensor to adjust the local fit of the corresponding area to achieve proper fit.

17. The compression system of claim 16, where the adjustable fastener comprises as least one of the following:

a hook and loop strap, a looped hook and loop strap, a hook and loop wrap, and a belt and buckle.

18. The compression system of claim 14, further comprising a radio frequency (RF) signal generator for transmitting RF signals to each capacitive sensor.

19. The compression system of claim 18, wherein each capacitive sensor generates RF absorption current as a function of the gap between the capacitive sensor and the body part of the patient in the corresponding area of local fit.

20. The compression system of claim 18, wherein each capacitive sensor forms an oscillator circuit with the RF signal generator, wherein a resonant frequency of the oscillator circuit varies as a function of the gap between the capacitive sensor and the limb of the patient in the corresponding area of local fit.

21. The compression system of claim 14, wherein the controller further comprises a fit indicator.

22. The compression system of claim 21, wherein the fit indicator comprises a plurality of visual indicators, each of said visual indicators corresponding to one of the plurality of capacitive sensors and being indicative of proper fit of the garment in the corresponding area of local fit.

23. The compression system of claim 21, wherein the visual indicator is a light emitting diode.

24. The compression system of claim 21, wherein the fit indicator is an audible tone that increases in pitch as a function of overall fit of the compressive garment to the limb.