Method for clearing a body lumen environment

• US 10,441,766 B2
• Filed: 03/14/2013
• Issued: 10/15/2019
• Est. Priority Date: 08/08/2007
• Status: Active Grant

• Current Assignee: Given Imaging Limited (Medtronic Plc)
• Original Assignee: Given Imaging Limited (Medtronic Plc)
• Inventors: Rabinovitz, Elisha, Gat, Daniel, Rosenthal, Shirrie
• Primary Examiner(s): Mehta, Bhisma
• Assistant Examiner(s): Darb, Hamza A
• Application Number:
  US13/803,693
• Publication Number:
  US 20130204086A1
• Time in Patent Office: 2,406 Days
• CPC Class Codes: A61B 1/041 Capsule endoscopes for imaging
• CPC Class Codes: A61B 1/31 for the rectum, e.g. proctoscopes, sigmoidoscopes , colonoscopes
• CPC Class Codes: A61B 5/0084 for introduction into the body, e.g. by catheters A61B5/1459 takes precedence
• CPC Class Codes: A61B 5/6861 Capsules, e.g. for swallowing or implanting
• CPC Class Codes: A61M 31/002 Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time artificial gland structures or devices A61F2/022; intra-uterine contraceptive devices A61F6/14; tampons for introducing into the vagina A61F13/20, A61L15/00; suppositories or bougies for intra-vaginal or intra-uterine application A61K9/02; physical forms of medicinal preparations for sustained or differential drug release A61K9/20, A61K9/50
• CPC Class Codes: A61M 37/00 Other apparatus for introducing media into the body for reproduction or fertilisation A61B17/425; apparatus for iontophoresis or cataphoresis A61N1/30; Percutany, i.e. introducing medicines into the body by diffusion through the skin salt baths A61H33/04

Abstract

An in vivo sensing device and system may contain or be used in conjunction with an image sensor and a body lumen clearing element or agent. A method may enable clearing a body lumen for in vivo sensing while using the device of the invention.

Claims

1. A method of reducing turbidity of a fluid within at least a portion of a gastrointestinal tract for the purpose of imaging therein, said method comprising:

separating solid luminal particles from luminal fluids within the fluid in at least said portion of the gastrointestinal tract by administering into at least said portion of the gastrointestinal tract a composition containing a turbidity reducing element, without removing the fluid from at least said portion of the gastrointestinal tract, said turbidity reducing element comprising an element selected from the group consisting of;

a coagulant, a flocculant, an aggregant, and a combination thereof,

wherein administration of said turbidity reducing element in said composition reduces the turbidity of the fluid within at least said portion of the gastrointestinal tract so as to enable clear imaging therein.

2. The method according to claim 1, wherein said step of administering said composition containing the turbidity reducing element comprises administering the composition in two or more discrete dosage forms.

3. The method according to claim 1, wherein said turbidity reducing element is in a form selected from the group consisting of:

a tablet, capsule, lozenge, powder, granule, caplet, solution, suspension, emulsion, or a combination thereof.

4. The method according to claim 1, wherein said method further comprises the step of administering a clear liquid diet, prior to the step of administering the composition containing the turbidity reducing element.

5. The method according to claim 1, wherein said method further comprises the step of inserting an in-vivo device into at least the portion of the gastrointestinal tract, following administering the composition containing the turbidity reducing element.

6. The method according to claim 5, wherein said in-vivo device is selected from the group consisting of:

a swallowable imaging capsule, an endoscope, a colonoscope, and other intra luminal viewing and imaging devices.

7. The method according to claim 1, wherein said method further comprises the step of administering gut-lavage solutions.

8. The method according to claim 1, wherein at least said portion of the gastrointestinal tract is a colon.

9. The method according to claim 1, wherein said turbidity reducing element is contained in an in-vivo device.

10. The method according to claim 9, wherein said turbidity reducing element is incorporated within a coating coated on a surface of the in-vivo device.

11. The method according to claim 9, wherein said in-vivo device comprises a cavity or reservoir sized to contain said composition and is configured to release said composition from said cavity or reservoir into at least said portion of the gastrointestinal tract.

12. The method according to claim 11, wherein said composition is released from said cavity or reservoir into at least the portion of the gastrointestinal tract by a valve, a pump or a dissolvable plug.

13. The method according to claim 1, wherein said step of administering the composition containing the turbidity reducing element comprises inserting an in-vivo device into at least the portion of the gastrointestinal tract, said in-vivo device having a cavity or reservoir sized to contain said composition and being configured to release said composition into at least the portion of the gastrointestinal tract.

14. The method according to claim 13, wherein said composition is released from said cavity or reservoir into at least the portion of the gastrointestinal tract by a valve, a pump or a dissolvable plug.