Systems and methods for determining the cure of pmma intraoperatively after implantation of an orthopedic device
AssigneeWavetest, LLC
InventorsDaniel A. FUNK, Quang-Viet NGUYEN
Life of this patent
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Abstract
The invention comprises a system for securing an implant to a bone comprising an implant which is affixed to the bone, a grout or bone cement comprising a composition that cures in an exothermic reaction and which is capable of securing the implant to the bone in a cured state, a device which provides access to the grout or bone cement in position on the bone and a tester which measures temperature over time to detect the exothermic reaction so as to determine when the composition reaches cure. The tester comprises a sensor joined to a circuit and to an indicator that emits a signal in response to a current emitted to the circuit by the sensor.
Claims14
1-41. (canceled)
A system for securing an implant to a bone, comprising:
- an implant,
- a grout or bone cement comprising a composition that cures in an exothermic reaction at a temperature x, the grout being capable of securing the implant to the bone in a cured state, and
- a tester which detects the exothermic reaction to determine which the temperature reaches the temperature x, and comprises a sensor joined to a circuit and which utilizes the first derivative of the temperature with respect to time to determine the state of cure.
Dependencies are inferred from the claim text.