Oral treatment device
An oral treatment device includes an inertial measurement unit, IMU, operable to output signals dependent on movement of the oral treatment device. The oral treatment device includes a controller configured to receive signals from the IMU indicating movement of the oral treatment device relative to the oral cavity, and process the received signals using a trained classification algorithm to obtain classification data, the classification algorithm being configured to determine whether the oral treatment device is being moved according to a predetermined movement type. The controller is configured to control the oral treatment device to perform an action using the classification data.
1 . An oral treatment device for use in treating an oral cavity of a user, the oral treatment device comprising:
an inertial measurement unit, IMU, operable to output signals dependent on movement of the oral treatment device; and
a controller configured to:
receive signals from the IMU indicating movement of the oral treatment device relative to the oral cavity of the user;
process the received signals using a trained classification algorithm to obtain classification data, the classification algorithm being configured to determine whether the oral treatment device is being moved according to a predetermined movement type; and
control the oral treatment device to perform an action using the classification data,
wherein the controller is configured to retrain the classification algorithm using the received signals from the IMU, such that the retrained classification algorithm is configured to determine whether the oral treatment device is being moved according to a further movement type, different to the predetermined movement type.
2 . The oral treatment device according to claim 1 , wherein movement of the oral treatment device according to the predetermined movement type impedes the use of the oral treatment device in treating the oral cavity of the user.
3 . The oral treatment device according to claim 1 , wherein the predetermined movement type comprises a scrubbing movement.
4 . The oral treatment device according to claim 1 , wherein the controller is configured to, in response to the classification data indicating that the oral treatment device is being moved according to the predetermined movement type, prevent treatment delivery by the oral treatment device in the oral cavity of the user.
5 . The oral treatment device according to claim 1 , wherein the controller is configured to, in response to the classification data indicating that the oral treatment device is not being moved according to the predetermined movement type, control the oral treatment device to deliver a treatment in the oral cavity of the user.
6 . The oral treatment device according to claim 1 ,
wherein the oral treatment device comprises a fluid delivery system for delivering working fluid to the oral cavity of the user, and
wherein the controller is configured to output a control signal to the fluid delivery system to control delivery of the working fluid based on the classification data.
7 . The oral treatment device according to claim 1 , wherein the controller is configured to, in response to the classification data indicating that the oral treatment device is being moved according to the predetermined movement type, cause a user interface to provide an output.
8 . The oral treatment device according to claim 7 , wherein the controller is configured to cause the user interface to provide the output during use of the oral treatment device in treating the oral cavity of the user.
9 . The oral treatment device according to claim 7 , wherein the controller is configured to cause the user interface to provide the output after use of the oral treatment device in treating the oral cavity of the user.
10 . The oral treatment device according to claim 7 , wherein the output provided by the user interface comprises an audio, visual and/or haptic output.
11 . The oral treatment device according to claim 7 ,
wherein the user interface is comprised in a remote device, and
wherein the controller is configured to output a signal to the remote device to cause the user interface to provide the output.
12 . The oral treatment device according to claim 7 , wherein the oral treatment device comprises the user interface.
13 . The oral treatment device according to claim 1 , wherein the controller is configured to modify the classification algorithm using the received signals from the IMU.
14 . The oral treatment device according to claim 1 , wherein the controller is configured to retrain the classification algorithm using the same received signals from the IMU that were used to obtain the classification data.
15 . The oral treatment device according to claim 1 , wherein the controller is configured to store the classification data in a memory.
16 . The oral treatment device according to claim 1 , wherein the controller is configured to output the classification data for transmission to a remote device.
17 . The oral treatment device according to claim 1 , wherein the controller is configured to:
receive training data from a remote device; and
modify the classification algorithm using the received training data.
18 . The oral treatment device according to claim 1 , wherein the classification algorithm comprises a non-linear classification algorithm.
19 . The oral treatment device according to claim 1 , wherein the classification algorithm comprises a machine learning algorithm.
20 . The oral treatment device according to claim 1 , wherein the oral treatment device comprises a machine learning agent, the machine learning agent comprising the classification algorithm.
21 . The oral treatment device according to claim 1 , wherein the oral treatment device comprises a toothbrush.
22 . A method of operating an oral treatment device for use in treating an oral cavity of a user, the oral treatment device comprising:
an inertial measurement unit, IMU, operable to output signals dependent on movement of the oral treatment device; and
a controller,
the method comprising, at the controller:
receiving signals from the IMU indicating movement of the oral treatment device relative to the oral cavity of the user;
processing the received signals using a trained classification algorithm to obtain classification data, the classification algorithm being configured to determine whether the oral treatment device is being moved according to a predetermined movement type;
controlling the oral treatment device to perform an action using the classification data; and
retraining the classification algorithm using the received signals from the IMU to determine whether the oral treatment device is being moved according to a further movement type, different to the predetermined movement type.
23 . A non-transitory computer-readable medium comprising computer-executable instructions which, when executed by a computerised device, cause the computerised device to perform a method of operating an oral treatment device for use in treating an oral cavity of a user, the oral treatment device comprising an inertial measurement unit, IMU, operable to output signals dependent on movement of the oral treatment device, the method comprising:
receiving signals from the IMU indicating movement of the oral treatment device relative to the oral cavity of the user;
processing the received signals using a trained classification algorithm to obtain classification data, the classification algorithm being configured to determine whether the oral treatment device is being moved according to a predetermined movement type; and
controlling the oral treatment device to perform an action using the classification data; and
retraining the classification algorithm using the received signals from the IMU to determine whether the oral treatment device is being moved according to a further movement type, different to the predetermined movement type.