Miniature ingestible capsule

• US 7,039,453 B2
• Filed: 01/12/2001
• Issued: 05/02/2006
• Est. Priority Date: 02/08/2000
• Status: Expired due to Term

• Current Assignee: Ramgopal Nair
• Original Assignee: Padmanabhan P. Nair, Ramgopal Nair, Sudhir K. Dutta, Tarun Mullick
• Inventors: Nair, Padmanabhan P., Mullick, Tarun, Dutta, Sudhir K., Nair, Ramgopal
• Primary Examiner(s): Casler, Brian L.
• Assistant Examiner(s): Jung, William
• Application Number:
  US09/759,398
• Publication Number:
  US 20030167000A1
• Time in Patent Office: 1,936 Days
• Field of Search: 600/109, 600/133, 600/160, 600/169, 600/176, 600/343, 600/407, 600/421, 455/66, 348/68, 348/76
• US Class Current: 600/476
• CPC Class Codes: A61B 1/00016 using wireless means
• CPC Class Codes: A61B 1/00082 Balloons
• CPC Class Codes: A61B 1/00087 Tools A61B17/00234 takes precedence
• CPC Class Codes: A61B 1/00094 Suction openings
• CPC Class Codes: A61B 1/00156 using self propulsion
• CPC Class Codes: A61B 1/041 Capsule endoscopes for imaging
• CPC Class Codes: A61B 1/12 with cooling or rinsing arrangements
• CPC Class Codes: A61B 1/126 provided with means for cleaning in-use
• CPC Class Codes: A61B 5/06 Devices, other than using radiation, for detecting or locating foreign bodies for removing same A61B17/50 ; determining position of probes within or on the body of the patient
• CPC Class Codes: A61B 5/061 Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body A61B1/00158 takes precedence
• CPC Class Codes: A61B 5/073 Intestinal transmitters
• CPC Class Codes: A61B 5/411 Detecting or monitoring allergy or intolerance reactions to an allergenic agent or substance
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61B 5/6882 Anchoring means
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00

Abstract

A miniature ingestible imaging capsule having a membrane defining an internal cavity and being provided with a window is provided. A lens is disposed in relation to said window and a light source disposed in relation to the lens for providing illumination to outside of the membrane through the window. An imaging array is disposed in relation to the lens, wherein images from the lens impinge on the imaging array. A transmitter is disposed in relation to the imaging array for transmitting a signal from the imaging array to an associated transmitter outside of the membrane. The lens, light source imaging array, and transmitter are enclosed within the internal cavity of the capsule.

Claims

1. An imaging device comprising:

a membrane defining an internal cavity and being provided with a window on one of two opposite ends of said membrane, said window and said membrane each having a substantially identical curvature, said membrane having a substantially oval configuration;

a lens disposed parallel and adjacent to said window;

a light source disposed in relation to said lens for providing illumination to outside of said membrane through said window;

an imaging array disposed in relation to said lens, wherein images from said lens impinge on said imaging array; and

a transmitter disposed in relation to said imaging array for transmitting a signal from said imaging array to an associated transmitter outside of said membrane, said lens, light source, imaging array, and transmitter being enclosed within said internal cavity.

2. The imaging device of claim 1, further comprising a pose beacon, said beacon being tracked by an associated pose detection system outside of said imaging device and tracking information is relayed to an associated recording and display system.

3. The imaging device of claim 1, further comprising a power source which provides power to said imaging array, said transmitter and said light source.

4. The imaging device of claim 1, wherein said membrane is made of a non-allergenic, non-digestible, impervious material.

5. The imaging device of claim 1, wherein said lens is made from plastic.

6. The imaging device of claim 1, wherein said lens is made from glass.

7. The imaging device of claim 1, wherein said lens is made from a fiber optic bundle.

8. The imaging device of claim 1, wherein said imaging array is a charged-couple device array.

9. The imaging device of claim 1, wherein said light source is a toroidally shaped source with a ring-semi parabolic mirror which is concentric with said window.

10. The imaging device of claim 1, wherein said transmitter is a miniature amplitude modulation video transmitter in the 400 MHz–

1.5 GHz region.

11. The imaging device of claim 1 wherein movement of said device is controlled by a remote external source.

12. An imaging system comprising:

a capsule, said capsule comprising;

an anterior membrane, said membrane comprises a window, said membrane and said window having substantially identical curvatures to each other;

a posterior membrane connected to said anterior membrane, said anterior membrane and said posterior membrane define an internal cavity, said anterior membrane and said posterior membrane define a substantially oval shaped capsule;

a lens disposed parallel to and adjacent said window;

a light source and projection device disposed in relation to said lens for providing illumination to outside of said anterior membrane;

an imaging array disposed in relation to said lens, wherein images from said lens impinge on said imaging array;

a first transmitter disposed in relation to said imaging array;

a pose beacon positioned in relation to said first transmitter;

said lens, light source and projection device, imaging array, first transmitter, and pose beacon are enclosed within said internal cavity;

a second transmitter located outside of said capsule, said first transmitter transmits a signal from said imaging array to said second transmitter;

a pose detection system outside of said capsule, said pose detection system tracks said pose beacon; and

a recording and display device, said pose detection system relays tracking information to said recording and display device.

13. The imaging system of claim 12, wherein said anterior membrane is made of a non-allergenic, non-digestible, impervious material.

14. The imaging system of claim 12, wherein said posterior membrane is made of a non-allergenic, non-digestible, impervious material.

15. The imaging system of claim 12, wherein said imaging array is a charged-couple device array.

16. The imaging system of claim 12, wherein said light source is a toroidally shaped source with a ring-semi parabolic mirror which is concentric with said window.

17. The imaging system of claim 12, wherein said first transmitter is a miniature amplitude modulation video transmitter in the 400 MHz–

1.5 GHz region.