PORTABLE HANDHELD ILLUMINATION SYSTEM

• US 20090146583A1
• Filed: 09/24/2008
• Published: 06/11/2009
• Est. Priority Date: 02/28/2007
• Status: Active Grant

• Current Assignee: Doheny Eye Institute
• Original Assignee: Doheny Eye Institute
• Inventors: Humayun, Mark S., McCormick, Matthew, DeBoer, Charles, Kerns, Ralph, Lue, Jaw-Chyng Lormen, Barnes, Aaron, Bhadri, Prashant R.
• Granted Patent: US 8,172,834 B2
• Time in Patent Office: Days
• US Class Current: 315/294
• CPC Class Codes: A61B 2017/00057 Light
• CPC Class Codes: A61B 2090/306 using optical fibres
• CPC Class Codes: A61B 2090/309 using white LEDs
• CPC Class Codes: A61B 2560/0214 of power generation or supply
• CPC Class Codes: A61B 2560/0456 Apparatus provided with a docking unit
• CPC Class Codes: A61B 3/0008 provided with illuminating means A61B3/117 takes precedence; goniolenses used for laser treatment A61F9/009; illuminating means for optical instruments G02B27/00
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: A61B 5/749 Voice-controlled interfaces
• CPC Class Codes: A61B 90/36 Image-producing devices or illumination devices not otherwise provided for
• CPC Class Codes: A61F 9/007 Methods or devices for eye surgery
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: H05B 45/18 using temperature feedback
• CPC Class Codes: H05B 47/12 by detecting audible sound
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

Illumination systems are described that can include one or more light sources, which can include LEDs, one or more lenses, and one or more optical fibers. A handheld, portable, and surgical intraocular illumination system is disclosed that is disposable, low-cost, and efficient. A surgeon can have direct control of turning the illuminator on and off and adjusting the intensity via a simple control ergonomically placed on the handpiece and/or voice activated control. A coupling is provided, such as through an endo-probe, which is coupled to the one or more light sources. A user input device can be included that is operable to transmit to a feedback controller a first signal based on a user-selected light intensity. The feedback controller can, in response to the first signal, transmit a second signal to the power source for altering the power provided by the power source to the illumination system.

Claims

1. An illumination system comprising:

a power source configured and arranged to produce a power output of a desired power;

a portable handpiece including;

an illumination system configured and arranged to emit light in response to power received from the power source;

a coupling system configured and arranged to select a wavelength range of the light from the illumination system;

a coupling interface configured and arranged to couple light from the coupling system into one or more optical fibers; and

a fiber output stage including one or more optical fibers and configured and arranged to deliver light from the coupling interface to a surgical site.

2. The system of claim 1, further comprising:

a feedback controller configured and arranged to adjust the power output of the power source; and

a user input device for controlling intensity of light emitted by the illumination system, the user input device transmitting to the feedback controller a first signal based on a user-selected light intensity, the feedback controller transmitting in response to the first signal, a second signal to the power source for altering the power provided by the power source to the illumination system.

3. The system of claim 2, wherein the feedback controller comprises a wired communication link with the user input device to provide feedback to the power supply.

4. The system of claim 2, wherein the handpiece comprises a transceiver and the feedback controller is configured and arranged to communication with a voice recognition system of a host system with a wireless communication link.

5. The system of claim 1, wherein the illumination system comprises one or more LEDs.

6. The system of claim 4, wherein the wireless control comprises an individual control located in the handpiece configured and arranged to control the intensity of the illumination system.

7. The system of claim 4, wherein the power source is disposed in the handpiece.

8. The system of claim 4, further comprising a sound sensor disposed within the handpiece and configured and arranged to detect spoken signals, wherein the sound sensor is configured and arranged to send an input signal to the feedback control system.

9. The system of claim 4, wherein the host system comprises a transceiver operational with a wireless protocol and a voice recognition system operational with a voice recognition protocol.

10. The system of claim 5, wherein the one or more LEDs comprise one or more LEDs operable to produce a green light output.

11. The system of claim 5, wherein the one or more LEDs comprise one or more LEDs operable to produce a blue light output.

12. The system of claim 5, wherein the one or more LEDs comprise one or more LEDs operable to produce a red light output.

13. The system of claim 5, wherein the one or more LEDs comprise one or more LEDs operable to produce a white light output.

14. The system of claim 4, wherein the plurality of light sources comprises a first light source operable at a first bandwidth of limited wavelength light and a second light source of visible wavelengths providing color tinted light.

15. A wired illumination system comprising:

an illumination system comprising a host system with a power source and controller with wired communication to a portable handheld illuminator with a control mechanism which communicates with the host system; and

a handheld illuminator emitting light responsive to power received from the host system.

16. The system of claim 15, wherein the handheld illuminator includes an input device for controlling the source power on/off state of the emitted light and intensity of the emitted light of the handheld illuminator.

17. The system of claim 16, wherein the input device comprises a user input device configured and arranged to transmit to the host system controller a first signal to turn on/off based on user selected power state, and wherein the host system controller is configured and arranged to transmit a second signal to the power source to initiate/terminate power to the light source.

18. The system of claim 17, wherein the user input device is configured and arranged to transmit a third signal to the host system controller to change the intensity of the broad bandwidth emitted light, and the controller is configured and arranged to transmit a fourth signal to the power source to alter the power the handheld illuminator.

19. The system of claim 18, wherein the he user input device is configured and arranged to transmit a fifth signal to the host system controller to control first intensity and spectral range.

20. An illumination system comprising:

a host system including;

a first transceiver adhering to a wireless communication protocol;

a voice recognition system; and

a portable handpiece communicating with the host system via the wireless communication protocol, the portable handpiece including;

a second transceiver for wireless communication with the host system;

a power source;

a feedback controller;

an illumination system emitting light responsive to power received from the power source;

a first user input device for controlling intensity of light emitted by the illumination system, the first user input device transmitting to the feedback controller a first signal based on a user-selected light intensity, the feedback controller transmitting in response to the first signal, a second signal to the power source for altering the power provided by the power source to the illumination system; and

a second user input device for receiving user input voice data, wherein the voice data is wirelessly transmitted by the second transceiver to the first transceiver and processed by the voice recognition system for storing or generating an output in response.

21. The system of claim 20, wherein the power source comprises a battery.

22. The system of claim 21, wherein the power source comprises a boost converter, operational to step up the battery voltage to that required for an LED source.

23. The system of claim 20, wherein a coupling is provided through an endo-probe component.

24. The system of claim 20, wherein a pulse rate of the illumination system meets a threshold for human perception of a pulsed light as continuous.

25. The system of claim 24, wherein the pulse rate is greater than 60 Hz.

26. The system of claim 20, wherein the pulse rate is less than 150 Hz.

27. The system of claim 20, wherein a duty cycle of the illumination system varies between about 1% and about 90%.

28. The system of claim 20, further comprising a cooling system configured and arranged to cool the illumination system to below a desired temperature.

29. The system of claim 28, wherein the desired temperature is less than 40°

C. and the portion of the system is the handpiece.

30. The system of claim 20, wherein the illumination system comprises a plurality of LEDs.