Device, system and method for determining in vivo body lumen conditions

• US 7,468,044 B2
• Filed: 01/16/2002
• Issued: 12/23/2008
• Est. Priority Date: 01/16/2001
• Status: Expired due to Term

• Current Assignee: Given Imaging Limited (Medtronic Plc)
• Original Assignee: Given Imaging Limited (Medtronic Plc)
• Inventors: Iddan, Gavriel J.
• Primary Examiner(s): Hindenburg; Max
• Assistant Examiner(s): Foreman; Jonathan M
• Application Number:
  US10/046,540
• Publication Number:
  US 20020111544A1
• Time in Patent Office: 2,533 Days
• Field of Search: 600/562, 600/573, 600/575, 600/582, 600/584, 600/587, 600/593, 600/473, 600/476, 600/310, 600/343, 600/117, 600/118, 600/160, 128/903
• US Class Current: 600/584
• CPC Class Codes: A61B 1/041 Capsule endoscopes for imaging
• CPC Class Codes: A61B 1/2736 Gastroscopes
• CPC Class Codes: A61B 5/0084 for introduction into the body, e.g. by catheters A61B5/1459 takes precedence
• CPC Class Codes: A61B 5/073 Intestinal transmitters

Abstract

Provided are a system and method for in vivo and in situ detection of body lumen conditions. The system comprises at least one interaction chamber for containing an endo-luminal sample, the interaction chamber comprising at least one indicator; at least one light source for illuminating the interaction chamber; and at least one optical detector for detecting in vivo optical changes occurring in the interaction chamber. The reaction between the indicator and sample may result in an optical change, which is detected and possibly imaged by the optical detector.

Claims

1. A method for determining body lumen conditions in-vivo, the method comprising:

inserting into a body lumen an in-vivo imaging device having an interaction chamber, an imager and an optical window, wherein said interaction chamber and said imager are positioned within said imaging device behind said optical window and said imager captures images of said interaction chamber;

allowing a first endo-luminal sample to enter through a first opening of the in-vivo interaction chamber, the interaction chamber having immobilized therein an indicator configured to react with at least the first endo-luminal sample, said reaction occurring within the interaction chamber, and the reaction resulting in an optical change;

detecting the optical change;

discharging the first endo-luminal sample through a second opening of the interaction chamber; and

replacing the first sample in the interaction chamber with a new sample.

2. The method according to claim 1 comprising imaging the interaction chamber with an optical system.

3. The method according to claim 1 comprising imaging the optical changes in the interaction chamber.

4. The method according to claim 1 comprising illuminating said interaction chamber wherein at least a portion of the interaction chamber is transparent in a wavelength of illumination.

5. The method according to claim 1, comprising transmitting images to an external receiver.

6. The method according to claim 1, comprising pumping the endo-luminal sample into the interaction chamber.

7. The method according to claim 1 comprising capturing an image of a gastrointestinal wall.

8. The method according to claim 1 wherein said imager captures images of said body lumen in addition to said interaction chamber.

9. The method according to claim 1 wherein said imager captures images of optical changes that occur within the interaction chamber.