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1. (WO2017002038) BROSSE À DENTS PERMETTANT UNE DÉTECTION DE LA POSITION DANS LA CAVITÉ BUCCALE
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

What is claimed is:

1. An electric toothbrush handle (20) for providing oral cavity position detection during operation comprising:

a handle body (11) having a longitudinal axis L (20);

a receiver body (13) extending from the handle body (11) along said longitudinal axis L (20), wherein the receiver body (13) has: (i) an engaging portion (15) distal the handle body (11) and configured to removably engage a replaceable toothbrush head (99); and (ii) a base portion (17) opposing the engaging portion (15), wherein the base portion (17) adjoins the handle body

(i i);

an electric motor contained in the handle body (11);

a drive shaft (19), operatively connected to the electric motor, extending along the longitudinal axis L (7) from the motor and at least partially into the receiver body (13);

wherein the electric toothbrush handle (20) is characterized by the receiver body (13) elastically deformable relative to said longitudinal axis L (7); and a 3-axis force sensor (23), operatively connected to the base portion (17) , configured to obtain 3-axis force data for oral cavity position detection during operation.

2. The electric toothbrush handle (20) of claim 1, wherein 3-axis force sensor comprises at least three strain gauges (27), preferably at least four strain gauges (27), operatively and physically connected to a surface of the base portion (17), preferably to an outside surface of the base portion (17).

3. The electric toothbrush handle (20) of any one of the preceding claims, wherein the base portion (17) has a cross section (relative to the longitudinal axis) in the shape of a regular polygon, preferably a tetragon; and wherein the cross section has a cross sectional area from 10

2 2 2 2

mm to 40 mm , preferably from 20 mm to 30 mm .

4. The electric toothbrush handle (20) of any one of preceding claims, further comprising an accelerometer and gyroscope (35), contained within the handle body (11), configured to providing 3-axis accelerometer and gyroscope data force for oral cavity position detection during operation.

5. The electric toothbrush handle (20) of any one of preceding claims, further comprising: a data transmitter (31), in communication with the 3-axis force sensor (23) and accelerometer and gyroscope (35), configured for transmitting 3-axis force sensor data and the 3-axis accelerometer and gyroscope data.

6. The electric toothbrush handle (20) of any one of claim 1-4, further comprising:

a memory (47) for storing a function, wherein the function correlates 3-axis force sensor data and preferably 3-axis accelerometer and gyroscope data of a defined oral cavity position; a processing unit ("PU") (45), in communication with the 3-axis force sensor (23) and the accelerometer and gyroscope (35), configured for processing obtained 3-axis force sensor data and preferably 3 -axis accelerometer and gyroscope senor data to the stored function to determine oral cavity position detection during operation.

7. The electric toothbrush handle (20) of claim 6, further comprising a transmitter (31) for transmitting the determined oral cavity position, preferably wherein the determined oral cavity position is selected from a plurality of tooth zones, more preferably at least 10 tooth zones, yet more preferably from 12 to 25 tooth zones.

8. The electric toothbrush handle (20) of any one of the preceding claims, further comprising an accelerometer and gyroscope MEMS (microelectromechanical system) sensor on a single chip and preferably further comprising a timer in communication with a processing unit.

9. The electric toothbrush handle (20) of any one of the preceding claims, further comprising a comparator for comparing reference data to obtained 3-axis force data; preferably an output device coupled to the comparator for providing feedback to the user; more preferably the feedback is configured to provide at least one output signal, wherein the output signal corresponds to at least one of a first plurality of conditions, wherein the at least one of a plurality of conditions is selected from the following: not brushing a tooth zone, too little time brushing in a tooth zone, too much time brushing in a tooth zone, sufficient time brushing in a tooth zone, a lower end of a range of sufficient time brushing in a tooth zone, and an upper end of the range of sufficient time brushing in a tooth zone.

10. The electric toothbrush handle (20) of any one of the preceding claims, further comprising a replaceable toothbrush head (99) having a head (102) and a neck (10), wherein the neck (10) extends between the engaging portion (15) and the head (102), the head (102) comprising one or more oral care cleaning or massaging elements (100), wherein the engaging portion (15) and neck (10) are removably attached.

11. The electric toothbrush handle (20) of claim 10, wherein the replaceable toothbrush head (99) further comprises at least one electrode pair (114) disposed on an outer surface of housing preferably at or near the head (102), with an impedance formed between the plurality of electrodes when electrified, wherein the handle (20) further contains a frequency generator in electrical communication to the electrode pair for applying a voltage with at least two different frequencies between the electrode pair, wherein the handle (20) further contains an impedance measurement unit electrically coupled to the electrode pair for measuring impedance values between the electrode pair; and optionally the handle contains a transmitter (31) for transmitting measured impedance values.

12. A system (63) comprising:

(a) the electric toothbrush handle (20) of claim 1-3 or 4;

(b) a computing device (41) comprising:

(i) . a data receiver (43) configured to receive transmitted 3-axis force sensor data and preferably 3-axis accelerometer and gyroscope data;

(ii) a processing unit (45) configured to process said received data;

(iii) a memory (47) configured for storing processed data; and

(iv) a display (49) configured for displaying said stored data or processed data, preferably processed data, wherein the processed data is oral cavity position detection during operation.

13. A manual toothbrush for providing oral cavity position detection during operation comprising:

a handle body having a longitudinal axis;

a head comprising one or more static oral care cleaning or massaging elements;

a neck extending between the handle body and the head, wherein the head is distal the handle body;

a battery (contained in the handle body);

wherein the manual toothbrush is characterized by at least a portion of the neck elastically deformable relative to said longitudinal axis; a 3-axis force sensor, in electrical communication with the battery, operatively connected to the elastically deformable portion of the neck or head, and configured to obtain 3-axis force for oral cavity position detection during operation; and a transmitter, in communication with the 3-axis force sensor, configured to transmit 3-axis force sensor data remotely from the manual toothbrush.

14. The manual toothbrush of claim 13, wherein the 3-axis force sensor comprises at least three strain gauges, preferably at least four strain gauges, operatively and physically connected to a surface of the flexible portion of the neck or head; more preferably wherein at least one of the three strain gauges obtain compression or traction force data (along the longitudinal axis).

15. The manual toothbrush of claim 13 or 14, further comprising an accelerometer and gyroscope, contained within the handle body, configured to providing 3-axis accelerometer and gyroscope data force for oral cavity position detection during operation, and wherein the transmitter, in communication with the accelerometer and gyroscope, is configured to transmit 3-axis accelerometer and gyroscope data remotely from the manual toothbrush.