Method for determining relative mobility or regions of an object

• US 7,617,068 B2
• Filed: 10/20/2006
• Issued: 11/10/2009
• Est. Priority Date: 10/20/2006
• Status: Active Grant

• Current Assignee: Amfit LLC
• Original Assignee: Amfit, Inc
• Inventors: Sundman, Arjen, Tadin, Tony
• Primary Examiner(s): Cosimano; Edward R
• Application Number:
  US11/584,290
• Publication Number:
  US 20080097720A1
• Time in Patent Office: 1,117 Days
• Field of Search: 731/04, 356/2, 356/388, 356/394, 356/600, 356/601, 382/100, 382/106, 382/108, 600/300, 600/587, 600/592, 702/1, 702/127, 702/138, 702/139, 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 foot comprising: measuring at least a portion of a shape of the foot under a first weight load; measuring the at least the portion of the shape of the foot under a second weight load; and comparing the measurement under the first weight load to the measurement under the second weight load, thereby determining a mobility of at least the portion of the foot.

Claims

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

measuring at least a portion of a shape of said object under a first weight load using a device;

measuring said at least said portion of said shape of said object under a second weight load using the device; and

comparing said measurement under said first weight load to said measurement under said second weight load, thereby determining a mobility of at least said portion of said object.

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

33. The method according to claims 1 or 3, or 26 or 30, wherein said device is one of a contact pin digitizer, an impression foam of shape memory materials, an array of sensor arms, and an optical scanning device.

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

measuring a first elevation from a reference plane of at least one location on an object under a first weight load using a device;

measuring a second elevation from said reference plane of said at least one location on said object under a second weight load using the device; and

determining a mobility of said object at said at least one location based on a difference between said first elevation and said second elevation.

4. The method of claim 3, wherein said reference plane is a surface platform.

5. The method of claim 3, wherein said object is a foot.

6. The method of claim 3, where said mobility is determined by the formula:

(Object Elevation at Initial Loaded State at (X,Y))−

(Object Elevation at Second Loaded State at (X,Y))=(Mobility of Foot at (X,Y)).

7. The method of claim 3, wherein said elevation measurement is taken along an axis perpendicular to said reference plane.

8. The method of claim 3, wherein said at least one location is a plurality of locations arrayed on a surface of said object.

9. The method of claim 3, 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, and one or more swing sensor arms.

10. The method of claim 3, 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.

11. The method of claim 3, wherein each said measuring step uses an optical scanner that includes a camera to evaluate the surface of the foot.

12. The method of claim 3, where each said measuring step uses a pressure measurement to characterize the surface of the foot.

13. The method of claim 3, further comprising:

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

14. The method of claim 3, further comprising designing, based on said mobility, a medical treatment selected from the group consisting of:

an orthotic intervention and a surgical procedure.

15. The method of claim 3, further comprising selecting, based on said mobility, a support device selected from the group consisting of:

footwear and an insole.

16. The method of claim 3, further comprising displaying said mobility to a user, customer and/or physician.

17. The method of claim 16, wherein said displaying includes providing a visual indication of mobility characteristics across a surface of said object.

18. The method of claim 16, further comprising transmitting said visual indication of mobility characteristics to a remote location.

19. A method of evaluating the effectiveness of a proposed orthotic intervention, comprising:

determining a desired mobility of at least a portion of a foot;

placing said foot in a position that creates said desired mobility;

determining an actual mobility of at least said portion of said foot by measuring at least a portion of a shape of said foot under a first weight load;

measuring said at least said portion of said shape of said foot under a second weight load; and

comparing said measurement under said first weight load to said measurement under said second weight load, thereby determining said actual mobility of at least said portion of said foot; and

comparing said actual mobility to said desired mobility to determine whether said desired mobility has been achieved.

20. The method of claim 19, wherein said foot is placed in said position by inserting a mechanical support under a selected portion of said foot.

21. A computer-readable medium having computer-executable instructions for instructing a machine to execute a method comprising the steps of:

measuring a first elevation from a reference plane of at least one location on an object under a first weight load;

measuring a second elevation from said reference plane of said at least one location on said object under a second weight load; and

determining a mobility of said object at said at least one location based on a difference between said first elevation and said second elevation.

22. The computer-readable medium of claim 21, wherein said method further comprises displaying said mobility to a user, customer and/or physician.

23. The computer-readable medium of claim 22, 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.

24. The computer-readable medium of claim 21, wherein said method further comprising designing a corrective treatment based on said mobility, and displaying said corrective treatment to a user.

25. The computer-readable medium of claim 24, wherein said corrective treatment is selected from the group consisting of:

an orthotic intervention and a surgical procedure.

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

measuring at least a portion of a shape of said object under a first weight load using a device;

measuring said at least said portion of said shape of said object under a second weight load using the device, wherein said measuring of said object under either or both of said first and second weight loads utilizes a pattern that is adhered or conformed to said object and wherein said patterns are captured by an imaging device; and

comparing said patterns measured from said first and second weight loads, thereby determining a mobility of at least said portion of said object.

27. The method of claim 26, wherein said object is a foot.

28. The method of claim 26, wherein said imaging device is at least one device selected from the group consisting of:

camera, chemical and digital.

29. The method of claim 26, wherein said pattern is applied via a sock with a stripe pattern disposed thereon and wherein said imaging device is evaluates the shape of said stripes to determine the shape of the contour of said object.

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

measuring at least a portion of a shape of said object under a first weight load using a device;

measuring said at least said portion of said shape of said object under a second weight load using the device, wherein said measuring of said object under either or both of said first and second weight loads is carried out via an imaging device comprising a grid for measuring the patterns of said object under a first and second weight load, and wherein said patterns are captured by said imaging device; and

comparing said patterns measured from said first and second weight loads, thereby determining a mobility of at least said portion of said object.

31. The method of claim 30 wherein said object is a foot.

32. The method of claim 30, wherein said imaging device is at least one device selected from the group consisting of:

camera, chemical and digital.