Method for determining relative mobility of regions of an object

• US 8,290,739 B2
• Filed: 09/02/2009
• Issued: 10/16/2012
• Est. Priority Date: 10/20/2006
• Status: Active Grant

• Current Assignee: Amfit LLC
• Original Assignee: Amfit, Inc
• Inventors: Tadin, Tony, Sundman, Arjen
• Primary Examiner(s): COSIMANO, EDWARD R
• Application Number:
  US12/584,243
• Publication Number:
  US 20100058855A1
• Time in Patent Office: 1,140 Days
• Field of Search: 335/01, 335/11, 335/15, 335/12, 731/04, 734/321, 738/654, 738/658, 738/663, 250/526, 356/2, 356/256, 356/388, 356/394, 356/600, 356/601, 382/100, 382/106, 382/108, 600/300, 600/587, 600/595, 702/1, 702/33, 702/41, 702/42, 702/127, 702/138, 702/139, 702/155, 702/166, 702/167, 702/168, 702/187, 702/189
• US Class Current: 702/139
• CPC Class Codes: A61B 5/1036 Measuring load distribution, e.g. podologic studies

Abstract

A method for determining a mobility of an object includes the steps of measuring at least a portion of a shape of an object under an initial increment of a weight load of a plurality of increments of a total weight load using a device and measuring at least a portion of the shape of the object under a next increment of a total weight load of a plurality of increments of a weight load using the device. Repeating the measurements until a total weight load is achieved and comparing the measurements from the device under the plurality of incremental weight loads, thereby determining a mobility of at least the portion of said object under the plurality of increments of weight loads. The method further includes adjusting the elevation and angular orientation of a support surface for the object to achieve further measurements and a device for obtaining such measurements. The method further includes comparing the mobility of a present object to a normal-object to determine a deviation. The normal-object is a statistical sample of a prior normal-object mobility.

Claims

1. A method for determining a mobility of an object, comprising:

a) measuring at least a portion of a shape of said object under an initial increment of a weight load of a plurality of increments of a total weight load using a device;

b) measuring said at least said portion of said shape of said object under a next increment of a total weight load of said a plurality of increments of a weight load using the device;

c) repeating step b) until a total weight load is achieved; and

d) comparing said measurements from the device under said plurality of incremental weight loads, thereby determining said mobility of at least said portion of said object under said plurality of increments of weight loads.

2. The method of claim 1, wherein each increment of said plurality of increments of a weight load of said total weight load is of an equal weight.

3. The method of claim 1, wherein said object is a plantar surface of the foot.

4. The method of claim 1, wherein an entire surface of the shape of said object is measured.

5. The method of claim 1, wherein the device is at least one selected from the group consisting of:

an optical digitizer, a pin digitizer, and at least one swing sensor arm.

6. The method of claim 1, wherein said object is a foot.

7. The method for determining a mobility of an object of claim 6 further comprising:

comparing said mobility of said foot to a second mobility of a normal-foot, wherein said second mobility of said normal-foot is a statistical sample of a prior measured said normal-foot mobility; and

determining a deviation of said mobility from said foot mobility to said second normal-foot mobility.

8. The method of claim 7 further comprising:

placing an regional support structure under said foot;

determining said mobility of said foot with said appliance under said foot; and

determining a deviation of said mobility from said foot mobility to said second normal-foot mobility with said appliance in place.

9. A method of determining the mobility of one of two similar objects, comprising:

a) adjusting a reference plane beneath one of the two similar objects whose mobility is to be measured;

b) applying a load to the two similar objects to determine that each of the two objects supports one half of said load;

c) measuring a first elevation from said reference plane of at least one location of one of said two similar objects, under a first weight load of a plurality of increments of a total weight load using a device to obtain a first measurement of said first object;

d) measuring a further elevation from said reference plane of said at least one location on said first object under a next incremental load of said plurality of increments of a total weight load to obtain a next measurement;

e) repeating step d) until said total weight load is achieved; and

f) determining a mobility of said first object based on a plurality of measurements at said plurality of different weight loads.

10. The method of claim 9, wherein said reference planes have different elevations in the z-axis.

11. The method of claim 9, wherein said two similar objects are a foot of a patient at a first weight load and said foot of said patient at a second weight load.

12. The method of claim 9, wherein said elevation measurements are taken along an axis perpendicular to said reference plane.

13. The method of claim 9, further comprising displaying said mobility to a user, customer and/or physician.

14. The method of claim 9, wherein said displaying includes providing a visual indication of mobility characteristics across a surface of said object.

15. The method of claim 9, wherein said at least one location is a plurality of locations arrayed on a surface of said object.

16. The method of claim 9, wherein each said measuring step uses a measurement system selected from the group consisting of:

one or more gauge pins that contact a surface of said object, a non-contact digitizer, and at least one swing sensor arm.

17. The method of claim 9, wherein each said measuring step uses an optical scanner that incorporates a light source to determine said elevation, wherein said light source is selected from the group consisting of:

a structured light, a laser light source and a combination thereof.

18. The method of claim 9, wherein each said measuring step uses an optical scanner that includes a camera to evaluate the surface of the foot.

19. The method of claim 9, where each said measuring step uses a pressure measurement to characterize the surface of the foot.

20. The method of claim 9, further comprising:

comparing said mobility of said at least one location of said object with a mobility of a reference object.

21. The method of claim 9, further comprising designing, based on said mobility, a medical treatment selected from the group consisting of:

an orthotic intervention, a surgical procedure, physical therapy, and physical manipulation.

22. The method of claim 9, further comprising selecting, based on said mobility, a support device selected from the group consisting of:

footwear and an insole.

23. The method of claim 9, wherein said reference planes have different orientations about the y-axis.

24. The method of claim 23, further comprising transmitting said visual indication of mobility characteristics to a remote location.

25. A computer-readable medium having computer-executable instructions that when executed, implement a method stored on a processor for executing the instructions of a method comprising the steps of:

a) measuring at least a portion of a shape of said object under an initial increment of a weight load of a plurality of increments of a total weight load using a device;

b) measuring said at least said portion of said shape of said object under a next increment of a total weight load of said a plurality of increments of a weight load using the device;

c) repeating step b) until a total weight load is achieved; and

d) comparing said measurements from the device under said plurality of incremental weight loads, thereby determining said mobility of at least said portion of said object under said plurality of increments of weight loads.

26. The computer-readable medium of claim 25, wherein said method further comprises displaying said mobility to a user, customer and/or physician.

27. The computer-readable medium of claim 25, wherein said step of displaying includes displaying information selected from the group consisting of:

said first elevation, said second elevation, said mobility, and any combination thereof.

28. The computer-readable medium of claim 25, wherein said method further comprising designing a corrective treatment based on said mobility, and displaying said corrective treatment to a user.

29. The computer-readable medium of claim 25, wherein said corrective treatment is selected from the group consisting of:

an orthotic intervention, a surgical procedure, physical therapy, and physical manipulation.

30. The computer-readable medium of claim 25, where each said measuring step uses a pressure measurement to characterize said shape of said object.

31. The computer-readable medium of claim 25, where each said measuring step uses a contour scanner to characterize said shape of said object.

32. A computer-readable medium having computer-executable instructions that when executed, implement a method stored on a processor for executing the instructions of a method comprising the steps of:

adjusting or placing a reference plane beneath one of the two similar objects whose mobility is to be measured;

applying a load to the two similar objects to determine that each of the two objects supports one half of said load;

measuring a first elevation from said reference plane of at least one location of one of said two similar objects, under a first weight load of a plurality of increments of a total weight load using a device to obtain a first measurement of said first object;

measuring a further elevation from said reference plane of said at least one location on said first object under a next incremental load of said plurality of increments of a total weight load to obtain a next measurement;

repeating said measuring a further elevation step, until a total weight load is achieved; and

determining a mobility of said first object based on a plurality of measurements at a plurality of different weight loads.

33. The method of claim 32 wherein each of said measuring steps uses an optical scanner that incorporates a light source to determine said elevation, wherein said light source is selected from the group consisting of:

a structured light, a laser light source and a combination thereof.

34. The method of claim 32, wherein each said measuring step uses an optical scanner that includes a camera to evaluate the surface of the foot.