Device, system and method for in-vivo sampling

• US 8,394,034 B2
• Filed: 05/22/2005
• Issued: 03/12/2013
• Est. Priority Date: 05/21/2004
• Status: Expired due to Fees

• Current Assignee: Given Imaging Limited (Medtronic Plc)
• Original Assignee: Given Imaging Limited (Medtronic Plc)
• Inventors: Iddan, Gavriel J., Rabinovitz, Elisha
• Primary Examiner(s): TOWA, RENE T
• Application Number:
  US11/597,103
• Publication Number:
  US 20080208077A1
• Time in Patent Office: 2,851 Days
• Field of Search: 600/101, 600/103, 600109-110, 600309-310, 600/314, 600/350, 600/352, 600/573, 600/575, 600/579, 600/582, 600/584, 604/317, 604/323
• US Class Current: 600/582
• CPC Class Codes: A61B 1/00016 using wireless means
• CPC Class Codes: A61B 1/00029 externally powered, e.g. wireless
• CPC Class Codes: A61B 1/041 Capsule endoscopes for imaging
• CPC Class Codes: A61B 10/0045 Devices for taking samples of body liquids devices for taking blood samples A61B5/15
• CPC Class Codes: A61B 10/0096 Casings for storing test samples A61B10/0038 and A61B10/0045 take precedence; preservation of living parts of the human or animal body A01N1/02; containers for retaining a material to be analysed B01L3/50; containers for enzymology or microbiology C12M1/16; swab-sampler being part of enzymology or microbiology container C12M1/30
• CPC Class Codes: A61B 2560/0219 of externally powered implanted units
• CPC Class Codes: A61B 5/036 by means introduced into body tracts A61B5/032 and A61B5/035 take precedence
• CPC Class Codes: A61B 5/053 Measuring electrical impedance or conductance of a portion of the body
• CPC Class Codes: A61B 5/073 Intestinal transmitters
• CPC Class Codes: A61B 5/14539 for measuring pH
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes

Abstract

A device, system and method for in-vivo sampling. An in-vivo device and method for use thereof may include a sampling chamber and a gating mechanism. The sampling chamber may store a sample of a body lumen substance, and the gate may close and open an opening of the sampling chamber.

Claims

1. An in-vivo device comprising:

a sampling chamber able to store a sample of a body lumen substance;

a first opening to allow said body lumen substance to enter said chamber from the body lumen;

a gate able to close and open said first opening of said sampling chamber;

a second opening to allow said body lumen substance to exit said chamber to the body lumen;

a first, flexible conductive plate able to repel from or attract to a second conductive plate when substantially equal or opposing current, respectively, is supplied to said first and second conductive plates, wherein said first and second conductive plates are located within said sampling chamber;

a power source to supply said current to said first and second conductive plates;

a first well formed when said first and second conductive plates are repelled from each other, said first well comprising a first reagent; and

a second well formed when said first and second conductive plates are repelled from each other, said second well comprising a second reagent,

wherein said sample is able to advance from said first well to said second well when said supplied current becomes opposing current in said first well while in said second well the current becomes substantially equal;

wherein said in-vivo device is a swallowable capsule.

2. The in-vivo device of claim 1, wherein said gate comprises a dissolvable material.

3. The in-vivo device of claim 1, comprising an imager to acquire an image of said body lumen substance stored in said chamber.

4. The in-vivo device of claim 1, wherein said in-vivo device is autonomous.

5. The in-vivo device of claim 1, wherein the first conductive plate is opposing the second conductive plate.

6. The in-vivo device of claim 1, wherein said gate is a passive gate.

7. The in-vivo device of claim 1, wherein said gate is an active gate.

8. The in-vivo device of claim 7, comprising:

a controller able to open said gate when a pre-defined condition is met.

9. The in-vivo device of claim 7, comprising:

a controller able to open said gate in response to a signal.

10. The in-vivo device of claim 9, wherein said signal is received from an external transmitter.

11. The in-vivo device of claim 9, wherein said signal is generated based on an analysis of an in-vivo image.

12. The in-vivo device of claim 9, wherein said signal is generated by an in-vivo sensor in response to a sensed parameter.

13. The in-vivo device of claim 12 wherein said sensed parameter is a parameter selected from a group consisting of:

temperature, pH, pressure, bacteria, and enzyme activity.

14. The in-vivo device of claim 1, comprising an absorbent component to absorb at least a portion of said body lumen substance.

15. The in-vivo device of claim 1, wherein said chamber comprises a vacuum.

16. The in-vivo device of claim 1, comprising a capillary to transport said body lumen substance into said chamber.

17. The in-vivo device of claim 1, wherein said first opening comprises a wide inlet to freely transport said body lumen substance into said chamber.

18. The in-vivo device of claim 1, comprising a pump to pump in said body lumen substance into said chamber.

19. The in-vivo device of claim 1, comprising a pump to pump out a content from said chamber.

20. The in-vivo device of claim 1, wherein said chamber comprises an indicator to interact with said body lumen substance.

21. A method comprising:

collecting a substance in a first chamber of an in-vivo device, wherein the in-vivo device is a swallowable capsule and comprises (a) a gate able to close and open a first opening of said first chamber, (b) a first, flexible conductive plate able to repel from or attract to a second conductive plate when substantially equal or opposing current, respectively, is supplied to said first and second conductive plates, (c) a first well formed when said first and second conductive plates are repelled from each other, and (d) a second well formed when said first and second conductive plates are repelled from each other;

said first well comprising a first reagent, said substance entering said first well through a first opening in said chamber;

allowing said substance to advance from said first well to a second well of the in-vivo device, said second well comprising a second reagent; and

allowing said substance to exit the in-vivo device through a second opening in said chamber.

22. The method of claim 21, comprising acquiring in-vivo an image of said sampling chambers.

23. The method of claim 21, wherein the openings open in response to a sensed parameter, wherein said parameter is selected from the group consisting of:

temperature, pH, pressure, bacteria, and enzyme activity.