Intraoral image sensor

• US 20040066898A1
• Filed: 12/10/2002
• Published: 04/08/2004
• Est. Priority Date: 10/03/2002
• Status: Active Grant

• Current Assignee: Sirona Dental Systems LLC (Sirona Dental Systems Incorporated)
• Original Assignee: Schick Technologies, Inc.
• Inventors: Schick, David B., Armencha, Valeriy, Mandelkern, Stan
• Granted Patent: US 7,072,443 B2
• Time in Patent Office: Days
• US Class Current: 378/98.9
• CPC Class Codes: A61B 2560/0209 adapted for power saving
• CPC Class Codes: A61B 2562/17 Comprising radiolucent components
• CPC Class Codes: A61B 5/0088 for oral or dental tissue
• CPC Class Codes: A61B 6/4494 Means for identifying the diagnostic device
• CPC Class Codes: A61B 6/512 Intraoral means
• CPC Class Codes: A61B 6/563 involving image data transmission via a network
• CPC Class Codes: H04N 23/66 Remote control of cameras or camera parts, e.g. by remote control devices
• CPC Class Codes: H04N 5/32 Transforming X-rays cameras or camera modules for generating image signals from X-rays H04N23/30; circuitry of SSIS for transforming X-rays into image signals H04N25/30
• CPC Class Codes: Y02A 90/10 Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

A system for capturing multiple intraoral images includes an intraoral sensor. The sensor includes a sensor array, a transmitter and a power source that provides power to the sensor array and the transmitter. The sensor is configured to be inserted inside a patient'"'"'s oral cavity, capture an image upon the presence of incident radiation and transmit from within the oral cavity via a wireless link electrical signals representing the image. A base station positioned outside the oral cavity is configured to receive the electrical signals transmitted from the sensor. The sensor is capable of capturing transmitting to the base station electrical signals representing multiple intraoral images without requiring that the sensor be removed from the patient'"'"'s oral cavity.

Claims

1. A system for capturing intraoral images, comprising:

an intraoral oral sensor including

a radiation sensitive sensor array,

a transmitter, and

a power source that provides power to the sensor array and the transmitter,

said intraoral sensor configured to be inserted into a patient'"'"'s oral cavity, capture an image upon the presence of incident radiation and transmit from within the oral cavity via a wireless link electrical signals representing the image; and

a base station positioned outside the oral cavity configured to receive the electrical signals transmitted by said intraoral sensor via the wireless link,

wherein said intraoral sensor is capable of capturing and transmitting to the base station electrical signals representing multiple images without requiring that said sensor be removed from the oral cavity.

2. The system according to claim 1, wherein said sensor array comprises a complementary metal oxide semiconductor active pixel sensor array.

3. The system according to claim 1, wherein said sensor array comprises a charge-coupled device.

4. The system according to claim 1, wherein said powersource comprises a battery.

5. The system according to claim 4, wherein said battery is rechargeable.

6. The system according to claim 1, wherein said transmitter is a radio frequency transmitter and wherein the wireless radio link is a wireless frequency link.

7. An intraoral sensor, comprising:

a first subsystem that includes a radiation sensitive sensor array that captures an image upon the presence of incident radiation;

a second subsystem that includes a transmitter that transmits via a wireless link signals representing an image captured by the sensor array;

a third subsystem that includes a power source that provides power to said first subsystem and second subsystem; and

a fourth subsystem that includes a controller that selectively controls the provision of power by said third subsystem to said first subsystem and said second subsystem.

8. The intraoral sensor according to claim 7, wherein the sensor array comprises a complementary metal oxide semiconductor active pixel sensor array.

9. The introral sensor according to claim 7, wherein the sensor array comprises a charge-coupled device.

10. The intraoral sensor according to claim 7, wherein the powersource comprises a battery.

11. The intraoral sensor according to claim 10, wherein the battery is rechargeable.

12. The introral sensor according to claim 7, wherein the transmitter is a radio frequency transmitter and wherein the wireless link is a wireless radio frequency link.

13. An intraoral sensor, comprising:

a radiation sensitive sensor array that captures an image upon the presence of incident radiation;

an event detection circuit including a current sensing device, said event detection circuit configured to generate a triggering signal indicating the presence of radiation incident on the sensor array based upon the amount of electrical current drawn by the sensor array; and

a transmitter adapted to transmit via a wireless link signals representing an image captured by the sensor array.

14. The intraoral sensor according to claim 13, wherein the sensor array comprises a complementary metal oxide semiconductor active pixel sensor array.

15. The introral sensor according to claim 13, wherein the sensor array comprises a charge-coupled device.

16. The intraoral sensor according to claim 13, wherein the powersource comprises a battery.

17. The intraoral sensor according to claim 16, wherein the battery is rechargeable.

18. The introral sensor according to claim 13, wherein the transmitter is a radio frequency transmitter and wherein the wireless link is a wireless radio frequency link.

19. An intraoral sensor, comprising:

means for capturing an image upon the presence of incident radiation;

means for transmitting via a wireless link signals representing an image captured by said capturing means;

means for providing electrical power to said captuirng means and said transmitting means; and

means for selectively controlling the provision of power to said capturing means and said transmitting means.

20. An intraoral sensor, comprising:

means for capturing an image upon the presence of incident radiation;

means for generating a triggering signal indicating the presence of radiation incident on said capturing means based upon the amount of electrical current drawn by said capturing means; and

means for transmitting via a wireless link signals representing an image captured by said capturing means.

21. An intraoral sensor, comprising:

a first subsystem that includes a radiation sensitive sensor array that captures an image upon the presence of incident radiation;

a second subsystem that includes

an analog-to-digital converter that converts analog signals representing an image captured by the sensor array into digital image signals;

a logic circuit that conditions the digital image signals into a format suitable for transmission via a wireless link; and

a transmitter that transmits via the wireless link the conditioned digital image signals;

a third subsystem that includes a power source that provides power to said first subsystem and said second subsystem; and

a fourth subsystem that includes a controller that selectively controls the provision of power by said third subsystem to said first subsystem and said second subsystem.