SYSTEMS AND METHODS FOR CLEANING BODY CAVITIES

• US 20130296771A1
• Filed: 01/11/2011
• Published: 11/07/2013
• Est. Priority Date: 01/11/2010
• Status: Active Grant

• Current Assignee: Motus Gi Medical Technologies Ltd. (Motus GI Holdings, Inc.)
• Original Assignee: Motus Gi Medical Technologies Ltd. (Motus GI Holdings, Inc.)
• Inventors: Shtul, Boris, Morochovsky, Alexey, Banzger, Alexander, Hassidov, Noam
• Granted Patent: US 9,895,483 B2
• Time in Patent Office: Days
• US Class Current: 604/28
• CPC Class Codes: A61B 1/015 Control of fluid supply or evacuation
• CPC Class Codes: A61B 1/04 combined with photographic or television appliances
• CPC Class Codes: A61B 1/122 using cleaning tools, e.g. brushes
• CPC Class Codes: A61B 1/31 for the rectum, e.g. proctoscopes, sigmoidoscopes , colonoscopes
• CPC Class Codes: A61B 17/22012 in direct contact with, or very close to, the obstruction or concrement for removing obstructions in blood vessels by laser A61B18/245
• CPC Class Codes: A61B 17/3207 Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions A61B17/32037 takes precedence; endoscopic cutting instruments A61B17/320016
• CPC Class Codes: A61B 17/320758 with a rotating cutting instrument, e.g. motor driven A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system
• CPC Class Codes: A61F 5/442 having irrigation ports or means irrigators A61M3/02
• CPC Class Codes: A61F 5/445 Colostomy, ileostomy or urethrostomy devices A61F5/441, A61F5/442, A61F5/443 take precedence
• CPC Class Codes: A61M 1/743 by changing the cross-section of the line, e.g. flow regulating valves A61M1/7413 takes precedence
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 1/777 Determination of loss or gain of body fluids due to suction-irrigation, e.g. during surgery
• CPC Class Codes: A61M 1/85 with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208
• CPC Class Codes: A61M 16/0463 combined with suction tubes, catheters or the like; Outside connections
• CPC Class Codes: A61M 2025/0019 Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
• CPC Class Codes: A61M 2025/0025 having a collapsible lumen
• CPC Class Codes: A61M 2205/3334 Measuring or controlling the flow rate
• CPC Class Codes: A61M 2205/3344 Measuring or controlling pressure at the body treatment site
• CPC Class Codes: A61M 2205/3389 : Continuous level detection A61M2205/3393 takes precedence
• CPC Class Codes: A61M 2205/3393 : by weighing the reservoir
• CPC Class Codes: A61M 2205/50 : with microprocessors or computers
• CPC Class Codes: A61M 2210/1064 : Large intestine
• CPC Class Codes: A61M 3/0202 : with electronic control means or interfaces
• CPC Class Codes: A61M 3/0208 : before use
• CPC Class Codes: A61M 3/0212 : after use
• CPC Class Codes: A61M 3/0216 : Pressure
• CPC Class Codes: A61M 3/022 : Volume; Flow rate
• CPC Class Codes: A61M 3/0241 : the liquid being supplied by gravity
• CPC Class Codes: A61M 3/0275 : Pulsating jets; Vibrating nozzles
• CPC Class Codes: A61M 3/0283 : with at least two inner passageways, a first one for irrigating and a second for evacuating suction-irrigation systems A61M1/77; aspiration tips with fluid supply means A61M1/85; for negative pressure wound therapy A61M1/92
• CPC Class Codes: A61M 3/0295 : with inflatable balloon
• CPC Class Codes: B08B 9/0436 : provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets B08B9/045, B08B9/047 take precedence
• CPC Class Codes: B08B 9/045 : the cleaning devices being rotated while moved , e.g. flexible rotating shaft or "snake"B08B9/047 takes precedence

Abstract

Systems and methods for cleaning body cavities are presented. Some embodiments reduce size of fecal matter pieces within an evacuation conduit. Some comprise devices and methods for purging an evacuation conduit. Some comprise reduced cross-sectional profiles of a cleaning device. Some protect intestinal tissue by preventing exposure to excessively high and low pressures.

Claims

1. A cleaning device having an elongated tube insertable in an intestine and which comprises an evacuation conduit for transporting material from said intestine out of a body, and which comprises

a closure mechanism positioned near a distal end of said evacuation conduit and which opened allows matter from said intestine to flow into said evacuation conduit, and which closed at least partially prevents fluid in said evacuation conduit from flowing through said distal end of said evacuation conduit and into said intestine;

and

circuitry configured to automatically close said closure mechanism to purge said evacuation conduit.

2. The device of claim 1, further comprising

a fluid supply conduit having a proximal connection to a fluid supply and at least one distal orifice within said evacuation conduit.

3. The device of claim 1, further comprising

a vacuum source connectable to a distal end of said evacuation conduit.

7. The device of claim 1 wherein said closure mechanism is closed mechanically.

8. The device of claim 1 wherein said closure mechanism is closed by hydraulic pressure.

9. The device of claim 1, wherein said closure mechanism is a one-way valve.

40. The device of claim 1, wherein a diameter of said evacuation tube is between 0.5 and 2 cm.

41. The device of claim 1, wherein said controller is configured to automatically create a pressure differential in said evacuation conduit to purge said conduit.

42. The device of claim 1, further comprising lateral openings within said evacuation conduit, said lateral openings connected to a fluid source configured to produce water jets to grain said matter contained in said evacuation conduit, the velocity and cross-section of the jets is such that the jets would cause damage and/or penetration of GI tissue if impinging on the tissue from a distance of 3 cm or less.

43. The device of claim 1, wherein said evacuation conduit is constructed with or attachable to an endoscope or colonoscope.

44. The device of claim 1, further comprising a tool within said evacuation conduit, said tool configured to rotate within said evacuation conduit to grain said matter and to propel said matter in a proximal direction within said evacuation conduit.

45. The device of claim 44, wherein a length of said tool is between 2 and 20 cm long.

46. The device of claim 44, wherein said tool is a first spring.

47. The device of claim 46, further comprising a second spring positioned within said first spring.

48. The device of claim 1, wherein said evacuation conduit comprises an abrasive interior surface over at least a shredding section thereof.

4. A method for cleaning a colon, comprising

a) introducing a liquid into a colon;

b) providing an evacuation conduit for evacuating material from said colon; and

c) occasionally closing a closure mechanism positioned near a distal end of said evacuation conduit, said closure mechanism when closed at least partially prevents fluid in said evacuation conduit from flowing through a distal end of said evacuation conduit, and

d) while said closure mechanism is closed, inducing a pressure differential between a medial portion of said conduit and a proximal end of said conduit, thereby purging said conduit.

5. The method of claim 4, comprising inducing said pressure differential by supplying a fluid into said conduit at a position which is proximal to said closure mechanism, said fluid being supplied while said closure mechanism is closed.

6. The method of claim 4, comprising inducing said pressure differential by attaching a proximal end of said evacuation conduit to a vacuum source while said closure mechanism is closed.

10. (canceled)

11. A cleaning device which comprises

a) a tube insertable in a colon and having a lumen;

b) a first helical device positioned within said lumen;

c) a second helical device positioned within said lumen; and

d) a mechanism for rotating said first and second helical devices in tandem.

12. The device of claim 11, wherein said first and second helical devices have windings spaced at least 0.5 mm apart.

13. The device of claim 11, where said second helical device is positioned within said first helical device and is substantially coaxial with it.

14. The device of claim 11, wherein said first helical device is attached to said tube.

15. The device of claim 11, wherein said tube has a smooth exterior surface and an abrasive interior surface.

16. The device of claim 11, where said second helical device is positioned to the size of said first helical device.

17. The device of claim 11, where said second helical device is configured to rotate in an opposite direction from said first helical device.

18-39. -39. (canceled)