Range of motion evaluation in orthopedic surgery
AssigneeOrthosoft Inc.
InventorPierre Couture
Life of this patent
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Abstract
A system and method may be used to evaluate soft tissue. A hip joint evaluation may use an adjustable spacer, such as varying sized physical spacers or an inflatable bladder, along with a sensor to measure force, pressure, gap distance, or the like, for example during a range of motion test. A method may include using a maximum pressure during the range of motion test to determine a maximum pressure during the range of motion test. The maximum pressure may be output for display on a user interface.
Claims19
A surgical device for evaluating soft tissue during a surgical procedure comprising:
- a pump to:
- inflate an adjustable spacer in a neck portion of a femoral trial for a hip replacement procedure;
- and
- during a range of motion test, maintain a fixed distance in the adjustable spacer by increasing or decreasing pressure in the adjustable spacer;
- and
- a processor to:
- determine a maximum pressure during the range of motion test;
- and
- output the maximum pressure for display on a user interface.
A method comprising:
- inserting a trial for a hip replacement procedure, the trial including an adjustable spacer in a neck portion;
- inflating the adjustable spacer to a fixed distance;
- using a pressure sensor device, measuring pressure on the adjustable spacer throughout a range of motion test with the trial in place and the adjustable spacer inflated at the fixed distance;
- determining a maximum pressure during the range of motion test;
- and
- outputting the maximum pressure for display on a user interface.
A non-transitory machine-readable medium including instructions for controlling an adjustable spacer of a trial inserted into a femur of a patient for a hip replacement procedure, which when executed by a processor, cause the processor to:
- cause the adjustable spacer to inflate to a fixed distance;
- receive pressure measurements from a pressure sensor device, the pressure measurements taken by the pressure sensor device on the adjustable spacer throughout a range of motion test with the trial in place and the adjustable spacer inflated at the fixed distance;
- determine a maximum pressure during the range of motion test;
- and
- output the maximum pressure for display on a user interface.
Dependencies are inferred from the claim text.