Fluid collection and disposal system and related methods

• US 9,889,239 B2
• Filed: 01/20/2011
• Issued: 02/13/2018
• Est. Priority Date: 03/23/2007
• Status: Active Grant

• Current Assignee: Allegiance Corporation (Cardinal Health, Inc.)
• Original Assignee: Allegiance Corporation (Cardinal Health, Inc.)
• Inventors: Michaels, Thomas L., Johnson, Russell A., Hill, Eric D., Patel, Hetal, Leadingham, Brian T.
• Primary Examiner(s): Zalukaeva, Tatyana
• Assistant Examiner(s): Klein, Benjamin
• Application Number:
  US13/010,021
• Publication Number:
  US 20110178482A1
• Time in Patent Office: 2,581 Days
• Field of Search: 604319, 604317, 604323, 604324, 210741, 210806, 210435, 600581
• CPC Class Codes: A61M 1/604 Bag or liner in a rigid container, with suction applied to both
• CPC Class Codes: A61M 1/78 Means for preventing overflow or contamination of the pumping systems combined with drainage containers A61M1/60
• CPC Class Codes: A61M 27/00 Drainage appliance for wounds or the like , i.e. wound drains, implanted drains negative pressure wound therapy devices A61M1/90; implements for holding wound open A61B17/02 ; middle ear drainage A61F11/202

Abstract

A fluid collection system includes a disposable collection container configured to receive a disposable collection container. The fluid collection container may include a flexible liner configured to collapse during evacuation of the fluid from the liner. The system may include a receiving housing sized to receive the disposable collection container, the receiving housing including a cavity and a piston assembly positioned within the cavity, the piston including a piston check valve. The system includes a suction source connectable to the disposable collection container and a filter positioned between the suction source and the cavity. A first connecting line extends between a suction source opening, configured to communicate the suction source to the disposable collection container, and the filter. A first check valve connects to the first connecting line between the suction source opening and the filter.

Claims

1. A fluid collection system configured to receive a disposable collection container, the system comprising:

a receiving housing, the receiving housing including a cavity;

a piston assembly positioned within the cavity and separating the cavity into a first cavity portion and a second cavity portion, the first cavity portion configured to receive the disposable collection container, the piston assembly including a piston check valve;

a suction source connectable to the disposable collection container;

a suction source opening, configured to communicate the suction source with the disposable collection container;

a filter positioned between the suction source and the suction source opening;

a first connecting line extending between the suction source opening and the filter; and

a first check valve connected to the first connecting line between the suction source opening and the filter,

wherein the piston check valve has a cracking pressure that is less than the cracking pressure of the first check valve.

2. The fluid collection system according to claim 1, further comprising:

a fluid trap attached between the filter and the suction source.

3. The fluid collection system according to claim 1, wherein the cavity includes a cavity opening in the second cavity portion, the system further comprising:

a second connecting line extending between the cavity opening and the filter;

a vent attached to the second connecting line between the cavity opening and the filter; and

a second check valve connected to the second connecting line between the vent and the filter.

4. The fluid collection system according to claim 1, further comprising:

a third connecting line attached to the filter;

a vacuum regulator attached to the third connecting line; and

a relief valve attached to the third connecting line between the vacuum regulator and the filter.

5. The fluid collection system according to claim 4, further comprising:

a fourth connecting line extending from the third connecting line between the relief valve and the filter;

a port connected to the fourth connecting line;

a fluid trap connected to the fourth connecting line between the port and the filter; and

a third check valve connected to the fourth connecting line between the port and the fluid trap.

6. The fluid collection system according to claim 1, further comprising:

a fourth connecting line extending from the first connecting line between the suction source opening and the first check valve;

a port connected to the fourth connecting line;

a fluid trap connected to the fourth connecting line between the port and the first connecting line; and

a third check valve connected to the fourth connecting line between the port and the fluid trap.

7. The fluid collection system according to claim 1, further comprising:

an exhaust line extending from the suction source; and

a muffler attached to the exhaust line.

8. The fluid collection system according to claim 1, wherein the piston check valve has a cracking pressure of at least 0.29 psi.

9. The fluid collection system according to claim 8, wherein the first check valve has a cracking pressure of at least 0.5 psi.

10. The fluid collection system according to claim 9, wherein the cracking pressure of the piston check valve is greater than 2.5 psi.

11. The fluid collection system according to claim 10, wherein the cracking pressure of the first check valve is greater than 3.5 psi.

12. The fluid collection system according to claim 1, wherein the piston check valve is configured to open when pressure in the first cavity portion is a designated amount greater than pressure in the second cavity portion.

13. A fluid collection system, comprising:

a disposable collection container having a flexible liner;

a receiving housing, the receiving housing including a cavity;

a piston assembly positioned within the cavity and separating the cavity into a first cavity portion and a second cavity portion, the first cavity portion configured to receive the disposable collection container, the piston assembly including a piston check valve;

a suction source connectable to the disposable collection container;

a suction source opening, configured to communicate the suction source with the disposable collection container;

a filter positioned between the suction source and the suction source opening;

a first connecting line extending between the suction source opening and the filter; and

a first check valve connected to the first connecting line between the suction source opening and the filter,

wherein the piston check valve has a cracking pressure that is less than the cracking pressure of the first check valve.

14. The fluid collection system according to claim 13, further comprising:

a fluid trap attached between the filter and the suction source.

15. The fluid collection system according to claim 13, wherein the cavity includes a cavity opening, the system further comprising:

a second connecting line extending between the cavity opening and the filter;

a vent attached to the second connecting line between the cavity opening and the filter; and

a second check valve connected to the second connecting line between the vent and the filter.

16. The fluid collection system according to claim 13, further comprising:

a third connecting line attached to the filter;

a vacuum regulator attached to the third connecting line; and

a relief valve attached to the third connecting line between the vacuum regulator and the filter.

17. The fluid collection system according to claim 16, further comprising:

a fourth connecting line extending from the third connecting line between the relief valve and the filter;

a port connected to the fourth connecting line;

a fluid trap connected to the fourth connecting line between the port and the filter; and

a third check valve connected to the fourth connecting line between the port and the fluid trap.

18. The fluid collection system according to claim 13, further comprising:

a fourth connecting line extending from the first connecting line between the suction source opening and the first check valve;

a port connected to the fourth connecting line;

a fluid trap connected to the fourth connecting line between the port and the first connecting line; and

a third check valve connected to the fourth connecting line between the port and the fluid trap.

19. The fluid collection system according to claim 13, further comprising:

an exhaust line extending from the suction source; and

a muffler attached to the exhaust line.

20. The fluid collection system according to claim 13, wherein the piston check valve has a cracking pressure greater than 2.5 psi.

21. The fluid collection system according to claim 20, wherein the first check valve has a cracking pressure greater than 3.5 psi.

22. The fluid collection system according to claim 13, wherein the piston check valve is configured to open when pressure in the first cavity portion is a designated amount greater than pressure in the second cavity portion.