System and method for determining terrain transitions
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-002/66
A61F-002/70
출원번호
US-0451407
(2012-04-19)
등록번호
US-8702811
(2014-04-22)
발명자
/ 주소
Ragnarsdottir, Heidrun Gigja
Clausen, Arinbjorn Viggo
출원인 / 주소
Össur hf
대리인 / 주소
Knobbe, Martens, Olson & Bear, LLP.
인용정보
피인용 횟수 :
15인용 특허 :
321
초록▼
A prosthetic or orthotic system including a sensor module and a processing module usable to determine a terrain variable, such as a terrain transition. In certain examples, the system is capable of anticipating a terrain transition prior to the user experiencing the terrain transition, which may inc
A prosthetic or orthotic system including a sensor module and a processing module usable to determine a terrain variable, such as a terrain transition. In certain examples, the system is capable of anticipating a terrain transition prior to the user experiencing the terrain transition, which may include, for instance, a transition from level ground walking to walking on stairs or may include a change in a slope of the ground surface. In certain embodiments, the system advantageously monitors a posture and/or movement of the patient to anticipate the terrain transition. Furthermore, the system may control an actuator to appropriately adjust the prosthetic or orthotic device to encounter the anticipated terrain transition.
대표청구항▼
1. A method of controlling the movement of a prosthetic ankle device, the prosthetic ankle device comprising a prosthetic foot, a lower limb member, and an actuator, the prosthetic foot being configured to pivot relative to the lower limb member, the method comprising: receiving first data identifyi
1. A method of controlling the movement of a prosthetic ankle device, the prosthetic ankle device comprising a prosthetic foot, a lower limb member, and an actuator, the prosthetic foot being configured to pivot relative to the lower limb member, the method comprising: receiving first data identifying a change in a posture of a user occurring while moving on a first terrain with a prosthetic ankle device attached to a limb of the user;processing with a computing device the first data to determine a terrain transition from the first terrain to a second terrain, wherein the first terrain is different from the second terrain, and wherein said receiving first data and said determining the terrain transition occurs prior to any portion of the user moving on the second terrain;outputting second data indicative of the determined terrain transition; andcontrolling with the computing device a movement of the prosthetic ankle device based at least upon said second data, wherein said controlling comprises at least actively adjusting an angle of a joint of the prosthetic ankle device prior to moving on the second terrain in order to accommodate the different second terrain identified from the first data. 2. The method of claim 1, wherein the first data is received from at least one accelerometer. 3. The method of claim 2, wherein the first data is also received from at least one gyroscope. 4. The method of claim 1, wherein the first data is received from at least one load sensor. 5. The method of claim 1, wherein the first data is received from at least one flex sensor. 6. The method of claim 1, further comprising actively adjusting an angle of the joint of the prosthetic ankle device based on a measurement of torque. 7. The method of claim 6, wherein the measurement of torque is a measurement of torque in a sagittal plane. 8. The method of claim 1, wherein receiving first data further comprises monitoring for an anticipatory change of a user during a final portion of a stride prior to any portion of the user moving on the second terrain. 9. The method of claim 1, wherein the first data identifies a change in medial-lateral displacement. 10. The method of claim 1, wherein the first data identifies a change in anterior-posterior displacement. 11. The method of claim 1, wherein the first data identifies a change in velocity. 12. The method of claim 1, wherein the first data identifies a change in acceleration. 13. The method of claim 1, wherein the first data identifies a terrain transition between level ground walking and stairs. 14. The method of claim 1, wherein the first data identifies a terrain transition between level ground walking and an incline or decline. 15. The method of claim 1, wherein the first data identifies a change in a center of pressure. 16. The method of claim 1, wherein the first data identifies a change in a center of mass. 17. A method of controlling the movement of a prosthetic ankle device, the prosthetic ankle device comprising a prosthetic foot, a lower limb member, and an actuator, the prosthetic foot being configured to pivot relative to the lower limb member and the actuator comprising a motor configured to provide for powered movement between the prosthetic foot and the lower limb member, the method comprising: operating the prosthetic ankle device on a first terrain, wherein said operating the prosthetic ankle device on the first terrain comprises adjusting the actuator in a first manner;monitoring with a sensor module located on the prosthetic ankle device an anticipatory change of a user during a stride prior to the prosthetic ankle device reaching a second terrain different from the first terrain;processing data received from the sensor module to determine a terrain transition from the first terrain to the second terrain prior to the prosthetic ankle device reaching the second terrain; andoperating the prosthetic ankle device on the second terrain, wherein said operating the prosthetic ankle device on the second terrain comprises adjusting the actuator in a second manner different from the first manner based on the determined terrain transition. 18. The method of claim 17, wherein the sensor module comprises at least one accelerometer. 19. The method of claim 18, wherein the sensor module further comprises at least one gyroscope. 20. The method of claim 17, wherein the sensor module comprises at least one load sensor. 21. The method of claim 17, wherein the first data is received from at least one flex sensor. 22. The method of claim 17, further comprising operating the actuator based on a measurement of torque. 23. The method of claim 22, wherein the measurement of torque is a measurement of torque in a sagittal plane. 24. The method of claim 17, wherein the sensor module monitors a change in posture of the user. 25. The method of claim 17, wherein the sensor module monitors an anticipatory change of a user during a final portion of a stride prior to the user reaching the second terrain. 26. The method of claim 17, wherein the sensor module detects a change in medial-lateral displacement. 27. The method of claim 17, wherein the sensor module detects a change in anterior-posterior displacement. 28. The method of claim 17, wherein the sensor module detects a change in velocity. 29. The method of claim 17, wherein the sensor module detects a change in acceleration. 30. The method of claim 17, wherein the sensor module detects a terrain transition between level ground walking and stairs. 31. The method of claim 17, wherein the sensor module detects a terrain transition between level ground walking and an incline or decline. 32. The method of claim 17, wherein the sensor module detects a change in a center of pressure. 33. The method of claim 17, wherein the sensor module detects a change in a center of mass.
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