Intra-oral camera with integral display

• US 7,057,639 B2
• Filed: 02/28/2001
• Issued: 06/06/2006
• Est. Priority Date: 02/28/2001
• Status: Active Grant

• Current Assignee: Carestream Dental Technology Topco Limited
• Original Assignee: Eastman Kodak Company
• Inventors: Boland, John T., Squilla, John R., Spoonhower, John P.
• Primary Examiner(s): Rao, Andy
• Application Number:
  US09/796,239
• Publication Number:
  US 20020118279A1
• Time in Patent Office: 1,924 Days
• Field of Search: 348 65- 77, 600/109, 600/172, 600/101, 600/118, 604/167, 604264-265
• US Class Current: 348/66
• CPC Class Codes: A61B 1/00016 using wireless means
• CPC Class Codes: A61B 1/00048 Constructional features of the display
• CPC Class Codes: A61B 1/00052 positioned at proximal end of the endoscope body
• CPC Class Codes: A61B 1/042 characterised by a proximal camera, e.g. a CCD camera
• CPC Class Codes: A61B 1/24 for the mouth, i.e. stomatoscopes, e.g. with tongue depressors tongue depressors per se A61B13/00; Instruments for opening or keeping open the mouth combined with saliva removers A61C17/00; mouth openers for animals A61D15/00
• CPC Class Codes: A61B 2560/0456 Apparatus provided with a docking unit

Abstract

A portable intra-oral capture and display system includes: (a) a handpiece elongated for insertion into an oral cavity, said handpiece including a light emitter on a distal end thereof for illuminating an object in the cavity and an image sensor for capturing an image of the object and generating an image signal therefrom; (b) a portable, hand-cradled base containing in a single integral enclosure a light source for generating light, electronics for processing the image for display, a display monitor for displaying the image, a storage for storing the image, thereby providing a stored image for subsequent review and access, and an interface for transferring the stored image to a peripheral device; and (c) an optical connection for transmitting the light from the base to the light emitter in the camera, and an electrical connection for communicating the image signal from the image sensor in the camera to the processor in the base.

Claims

1. A portable intra-oral capture and display system, said system comprising:

a handpiece elongated for insertion into an oral cavity, said handpiece including a light emitter on a distal end thereof for illuminating an intra-oral object in the cavity and an image sensor for capturing an image of the intra-oral object and generating an image signal therefrom;

a portable, hand-cradled base flexibly tethered to the handpiece such that the base may be hand positioned relative to a user'"'"'s line of sight without moving the handpiece, said base containing in a single integral enclosure a light source for generating light, electronics for processing the image of the intra-oral object for display, a display monitor for displaying the image of the intra-oral object, a storage for storing the image of the intra-oral object, thereby providing a stored image of the intra-oral object for subsequent review and access, and an interface for transferring the stored image of the intra-oral object to a peripheral device;

wherein the base further includes interface electronics for transferring the stored image to the peripheral device through the interface, retrieving one or more stored images from the peripheral device through the interface and displaying the retrieved stored images on the display monitor, and a set of user controls for allowing the user to enable the interface electronics to transfer the stored image to the peripheral device and to retrieve the one or more stored images from the peripheral device; and

an optical connection for transmitting the light from the base to the light emitter in the camera, and an electrical connection for communicating the image signal from the image sensor in the camera to the electronics in the base.

2. The intra-oral capture and display system as claimed in claim 1 wherein the optical and electrical connections are bundled in a single cable that tethers the base to the handpiece.

3. The intra-oral capture and display system as claimed in claim 1 wherein the image displayed is a motion image.

4. The intra-oral capture and display system as claimed in claim 1 wherein the image displayed is a still image.

5. The intra-oral capture and display system as claimed in claim 1 wherein the electronics includes user controls for manipulating the image on the display.

6. The intra-oral capture and display system as claimed in claim 1 wherein the storage is a flash RAM.

7. The intra-oral capture and display system as claimed in claim 1 wherein the interface includes an electrical receptacle connected to the interface electronics for receiving a removable storage device on which the image may be stored.

8. The intra-oral capture and display system as claimed in claim 1 wherein the interface electronics includes a transceiver for initiating a wireless connection with the peripheral.

9. The intra-oral capture and display system as claimed in claim 1 wherein the peripheral includes at least one of a printer, a monitor and a computer.

10. A dental image processing system comprising:

a portable intra-oral camera and display system connected by a wireless link to one or more peripheral processing devices remote from the camera and display system;

wherein said portable camera and display system comprises;

a handpiece elongated for insertion into an oral cavity, said handpiece including a light emitter on a distal end thereof for illuminating an object in the cavity and an image sensor for capturing an image of the object and generating an image signal therefrom that is calibrated for the colorimetry of the camera and display system;

a portable, hand-cradled base containing in a single integral enclosure electronics for processing the image for display, a display monitor for displaying the image and a wireless device for establishing the wireless link and transmitting the image from the base to one or more peripheral devices located remote from the intra-oral capture and display system;

a connection for communicating the image signal from the image sensor in the camera to the electronics in the base, where the connection allows the handpiece and the base to be independently movable with respect to each other; and

wherein the dental image processing system provides color calibration across the entire dental image processing system, whereby the handpiece is used to illuminate target materials to characterize a characteristic input color response of the portable intra-oral camera and display system and whereby the color calibration further includes characterization of a characteristic color response of one or more output devices, including one or more of the peripheral devices that render the image.

11. The dental image processing system as claimed in claim 10 wherein the connection is a cable, and the base includes a light source for generating light and the cable further includes an optical connection for transmitting the light from the base to the light emitter in the handpiece.

12. The dental image processing system as claimed in claim 10 wherein the peripheral processing device includes at least one of a printer, a monitor and a computer.

13. The dental image processing system as claimed in claim 10 wherein said wireless device is a wireless RF transmitter.

14. The dental image processing system as claimed in claim 10 wherein said wireless device is an infra-red transmitter.

15. The dental image processing system as claimed in claim 10 wherein the wireless device further includes the capability of receiving an image from one or more of the peripheral devices.

16. The dental processing system as claimed in claim 10 wherein the target materials include color matching charts for tooth color.

17. A portable intra-oral capture and display system, said system comprising:

a handpiece elongated for insertion into an oral cavity, said handpiece including a light emitter on a distal end thereof for illuminating an object in the cavity and an image sensor for capturing an image of the object and generating an image signal therefrom, said handpiece including a light source for generating light for the light emitter, electronics for processing the image signal, an interface for transferring the image signal from the handpiece and a first rechargeable power supply for powering the handpiece;

a portable, hand-cradled base containing in a single integral enclosure an interface for receiving the image signal from the handpiece, electronics for processing the image signal for display, a display monitor for displaying the image signal, and a second rechargeable power supply for powering the base; and

a docking stage for receiving the handpiece and the base, said docking stage having one or more rechargers for recharging the power supply in the handpiece or the base when the handpiece or the base is received into the docking stage.

18. The intra-oral capture and display system as claimed in claim 17 wherein the interface includes a removable storage device on which the image may be stored.

19. The intra-oral capture and display system as claimed in claim 17 wherein the interface includes a transceiver for initiating a wireless connection with the base.

20. The intra-oral capture and display system as claimed in claim 17 wherein the power supplies in the handpiece and base further include rechargeable batteries and the docking stage further includes a first docking unit for receiving the handpiece, said first docking unit having a battery recharger for recharging the batteries in the handpiece when the handpiece is received into the first docking unit and a second docking unit for receiving the base, said second docking unit having a battery recharger for recharging the batteries in the base when the base is received into the second docking unit.

21. A method for capturing pictorial images of the interior of a patient'"'"'s mouth in order to provide a diagnosis of dental and oral disease as well as a visual record of the condition of the patient, said method comprising the steps of:

providing a handpiece component that is elongated for insertion into the patient'"'"'s mouth, said handpiece component including a light emitter on a distal end thereof for illuminating dental structure in the mouth of the patient and an image sensor for capturing an image of the dental structure and generating an image signal therefrom;

capturing a pictorial image of the interior of the patient'"'"'s mouth, including the dental structure, by placing the handpiece component in proximity to the dental structure;

providing a hand-sized base component that is easily cradled, supported and held by one hand, said base component containing in a single integral enclosure an electronics stage for processing the image of the dental structure for display, a display monitor for displaying the image of the dental structure, and a storage for storing the image of the dental structure, thereby providing a stored image of the dental structure for subsequent review and access;

providing a transfer interface between the handpiece component and the base component that allows each component to be independently movable with respect to the other component, said transfer interface being adapted to transfer the image of the dental structure between the handpiece component and the base component;

transferring the pictorial image of the dental structure from the handpiece component to the base component over the transfer interface;

displaying the pictorial image of the dental structure on the display monitor of the base component; and

manipulating the hand-sized base component relative to the handpiece component such that one person may capture the pictorial image of the dental structure with the handpiece component held in one hand while positioning the base component in the other hand for best viewing of the displayed image.

22. The method as claimed in claim 21 wherein the transfer interface is a cable connection between the handpiece component and the base component.

23. The method as claimed in claim 21 wherein the transfer interface is a wireless connection between the handpiece component and the base component.

24. The method as claimed in claim 23 wherein the wireless connection is an RF connection.

25. The method as claimed in claim 23 wherein the wireless connection is an infra-red connection.