Smart surgical screwdriver
Disclosed are surgical tool systems and methods for installing a fixator in biological tissue with precision and efficiency. These systems are designed to measure torque and rotational velocity accurately while providing real-time feedback to the user during surgical procedures. Utilizing integrated sensors, the system calculates torque and energy-rotation parameters, including mean torque, mean rotational velocity, mean power, and total energy. Based on these measurements, the system generates a Property I value—a weighted combination of these parameters—to assess whether the operation falls within optimal ranges. If the Property I values deviate from these ranges, the system generates corrective signals and adjusts the tool's operation to ensure optimal performance. In some cases, this iterative process continues until the fixator installation is successfully completed, enhancing surgical accuracy and reducing the risk of errors.
1 . A method for installing a fixator in a biological tissue with a surgical tool, wherein the surgical tool comprises a first sensor, a second sensor, a third sensor, the method comprising:
a) receiving measurements from the first, second, and third sensors of the surgical tool loaded with the fixator and calculating values of one or more torque parameters and one or more energy-rotation parameters, wherein the one or more torque parameters and one or more energy-rotation parameters comprise mean torque, mean rotational velocity, mean power, and total energy, based on the measurements,
b) generating values of Property I, wherein each Property I value is a sum of weighted values of the one or more torque parameters and one or more energy-rotation parameters,
c) generating a signal reflecting whether the Property I values fall outside one or more optimal ranges of Property I,
d) adjusting insertion operation of the surgical tool loaded with the fixator to change torque parameters and energy parameters associated with the insertion operations if the Property I values are outside the one or more optimal ranges, such that Property I values are within the one or more optimal ranges, and
g) repeating steps a)-d) until the installation is complete.
2 . The method of claim 1 , wherein the surgical tool further comprises a power source.
3 . The method of claim 1 , wherein the second sensor comprises an accelerometer or a gyroscope.
4 . The method of claim 1 , wherein the first, second, and third sensors are configured to obtain measurements at a frequency of at least 5, at least 20, at least 40, or at least 60 Hz.
5 . The method of claim 1 , wherein one or more optimal ranges of Property I are generated based in part on one or more factors selected from age, gender, height, weight, body mass index, race, and bone mineral density.
6 . The method of claim 1 , wherein the signal is a visual signal.
7 . The method of claim 1 , wherein the signal is a tactile signal.
8 . The method of claim 1 , wherein the one or more torque parameters further comprise peak torque.
9 . The method of claim 1 , wherein the one or more energy-rotation parameters further comprise energy density.
10 . The method of claim 1 , wherein the fixator is a pedicle screw.
11 . The method of claim 1 , wherein the fixator is a cortical screw.
12 . The method of claim 1 , wherein the method further comprises a wireless transmitter module for data transmission and storage.
13 . The method of claim 1 , wherein the measurements are performed at a frequency of at least 10, at least 12, at least 15, at least 20, or at least 30 times per second.
14 . The method of claim 1 , wherein the signal is a visual signal or tactile signal.
15 . The method of claim 1 , wherein the fixator is a pedicle screw or a cortical screw.
16 . The method of claim 1 , wherein the method further comprises transmitting data from the surgical tool via a wireless transmitter module.
17 . The method for installing a fixator in a biological tissue of claim 1 , wherein the surgical tool further comprises a power source.
18 . The method for installing a fixator in a biological tissue of claim 1 , wherein the surgical tool further comprises a microcontroller, wherein the adjusting the insertion operation of the surgical tool loaded with the fixator is performed by the microcontroller.