Light device and system for providing light to optical scopes

• US 10,051,166 B2
• Filed: 04/27/2016
• Issued: 08/14/2018
• Est. Priority Date: 04/27/2016
• Status: Active Grant

• Current Assignee: Karl Storz Imaging, Inc (Karl Storz Se & Co. Kg)
• Original Assignee: Karl Storz Imaging, Inc (Karl Storz Se & Co. Kg)
• Inventors: Duckett, III, George E., Amling, Marc, Birnkrant, Dashiell
• Primary Examiner(s): Leubecker, John P
• Application Number:
  US15/140,265
• Publication Number:
  US 20170318205A1
• Time in Patent Office: 839 Days
• CPC Class Codes: A61B 1/00105 characterised by modular construction
• CPC Class Codes: A61B 1/00128 mechanical, e.g. for tubes or pipes
• CPC Class Codes: A61B 1/042 characterised by a proximal camera, e.g. a CCD camera
• CPC Class Codes: A61B 1/045 Control thereof
• CPC Class Codes: A61B 1/05 characterised by the image sensor, e.g. camera, being in the distal end portion
• CPC Class Codes: A61B 1/0638 providing two or more wavelengths
• CPC Class Codes: A61B 1/0669 at proximal end of an endoscope
• CPC Class Codes: A61B 1/0684 using light emitting diodes [LED]
• CPC Class Codes: A61B 1/07 using light-conductive means, e.g. optical fibres
• CPC Class Codes: G02B 23/16 Housings; Caps; Mountings; Supports, e.g. with counterweight
• CPC Class Codes: G02B 23/2453 of the proximal end
• CPC Class Codes: G02B 23/2469 using optical fibres
• CPC Class Codes: G02B 23/2484 Arrangements in relation to a camera or imaging device processing or control of video signals generated by an endoscope H04N23/60, H04N23/70
• CPC Class Codes: G02B 23/26 using light guides for illumination G02B23/2469
• CPC Class Codes: H04N 23/56 provided with illuminating means

Abstract

A system and method for providing light to an optical scope having a lightport. A light device connects a camera to an optical scope and supplies light to the scope while allowing for scope rotation. The light device has a proximal end attached to the distal end of the camera, a distal end adapted to be attached to and detached from the scope, and a light source. The light source may be powered by electrical power received from the camera. A light cable extends from the light device and has a distal end adapted to be attached to and detached from the light post on the scope to supply light to the scope. The distal end of the light device is rotatable with respect to the distal end of the camera such that the light cable is able to rotate about the optical axis of the camera.

Claims

1. A system for providing light to an optical scope having a light port, the system comprising:

a camera having a distal end and an optical axis extending from its distal end;

a light device including;

a proximal end attached to the camera;

a distal end adapted to be attached to and detached from the optical scope;

a light source powered by electrical power received from the camera; and

a light cable extending from the light device and having a distal end adapted to be attached to and detached from the light port on the optical scope to provide light to the light port;

wherein the distal end of the light device is rotatable with respect to the distal end of the camera such that when the light device is attached to the camera, and the optical scope is attached to the light device with the light cable attached to the light port, the light cable and the optical scope are allowed to rotate around the optical axis of the camera; and

wherein the camera comprises a first transceiver; and

the light device comprises a second transceiver that wirelessly couples to the first transceiver when brought in proximity thereto and wirelessly receives the electrical power from the first transceiver;

the first transceiver further adapted to transmit control signals to the light device, and the second transceiver further adapted to receive the control signals;

wherein the light source comprises a plurality of light emitters with different spectral characteristics, the emitters being selectively activatable to vary the spectral content of the light in response to selected control signals provided through the first and second transceivers, the light source being integrated into the distal end of the light cable, and further includes a light pipe extending from an emitting face of a beam combiner and positioned at the distal end of the light cable such that when the light cable is attached to the light port of the optical scope, the light pipe optically couples the light source and the light port.

2. The system of claim 1, wherein the electrical power is transmitted from the camera to the light device by electromagnetic induction.

3. The system of claim 1, in which the plurality of light emitters further comprises multiple LEDs, including an LED with output peaking at a wavelength shorter than 430 nm, an LED with output peaking between 450 nm and 490 nm, and an LED with substantial output at wavelengths greater than 500 nm.

4. The system of claim 1, in which the light source is configured to be operated in a first mode emitting broadband substantially white light, and further configured to be switched from the first mode to a second mode emitting light of wavelength less than 440 nm and light of wavelength greater than 490 nm but relatively little light between 440 nm and 490 nm.

5. The system of claim 4 in which the light source further comprises an x-cube prism beam combiner having at least three receiving faces and further wherein three light emitters of different spectral characteristics are arranged at respective receiving faces of the beam combiner.

6. A system for providing light to an optical scope having a light port, the system comprising:

a camera having a distal end and an optical axis extending from its distal end;

a light device including;

a proximal end attached to the camera;

a distal end adapted to be attached to and detached from the optical scope;

a light source powered by electrical power received from the camera; and

a light cable extending from the light device and having a distal end adapted to be attached to and detached from the light port on the optical scope to provide light to the light port;

wherein the distal end of the light device is rotatable with respect to the distal end of the camera such that when the light device is attached to the camera, and the optical scope is attached to the light device with the light cable attached to the light port, the light cable and the optical scope are allowed to rotate around the optical axis of the camera;

wherein the camera comprises a first transceiver; and

the light device comprises a second transceiver that wirelessly couples to the first transceiver when brought in proximity thereto and wirelessly receives the electrical power from the first transceiver by electromagnetic induction;

the first transceiver further adapted to transmit control signals to the light device, and the second transceiver further adapted to receive the control signals;

wherein the light source comprises a plurality of light emitters with different spectral characteristics, the emitters being selectively activatable to vary the spectral content of the light in response to selected control signals provided through the first and second transceivers, and wherein the light source is further selectively operable to toggle back and forth between two or more illumination modes having different light spectrums, the toggling at a rate greater than a display frame rate, with the camera operable to acquire alternating images in each mode at a rate greater than a display frame rate, and

a camera control unit operable to process the images to create an image stream which contains data acquired during multiple illumination modes at the display frame rate.

7. The system of claim 6, wherein the camera control unit is operable to combine the images to display at the display frame rate as illuminated by each spectrum simultaneously.

8. The system of claim 6, wherein the light source is arranged integrated into the proximal or distal end of the light cable and includes a beam combiner arranged to receive and combine light from the plurality of light emitters.

9. The system of claim 6, wherein the light device is adapted to be detachable from the camera leaving the camera attachable to another suitable optical scope without the light device.

10. The system of claim 6, wherein the light device is integral to the camera.

11. A system for providing light to an optical scope having a light port, the system comprising:

a camera having a distal end and an optical axis extending from its distal end;

a light device including;

a proximal end attached the camera;

a distal end adapted to be attached to and detached from the optical scope;

a light source powered by electrical power received from the camera; and

a light cable extending from the light device and having a distal end adapted to be attached to and detached from the light port on the optical scope to provide light to the light port;

wherein the light source is further selectively operable to toggle back and forth between two or more illumination modes having different light spectrums, the toggling at a rate greater than a display frame rate, with the camera operable to acquire alternating images in each mode at a rate greater than a display frame rate; and

a camera control unit operable to process the images to create an image stream which contains data acquired during multiple illumination modes at the display frame rate.

12. The system of claim 11, wherein the camera control unit is operable to combine the images to display at the display frame rate as illuminated by each spectrum simultaneously.

13. The system of claim 11, in which the light source is configured to be operated in a first mode emitting broadband substantially white light, and further configured to be switched from the first mode to a second mode emitting light of wavelength less than 440 nm and light of wavelength greater than 490 nm but relatively little light between 440 nm and 490 nm.

14. The system of claim 11, wherein the light device is adapted to be detachable from the camera leaving the camera attachable to another suitable optical scope without the light device.