Fluid collection and disposal system and related methods

Patent metadata

Field	Value
Publication number	US-9889239-B2
Application number	US-201113010021-A
Country	US
Kind code	B2
Filing date	Jan 20, 2011
Priority date	Mar 23, 2007
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

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.

First claim

What is claimed is:

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.

Assignees

• Michaels Thomas L
• Johnson Russell A
• Hill Eric D
• Patel Hetal
• Leadingham Brian T
• Allegiance Corp

Inventors

• Michaels Thomas L
• Johnson Russell A
• Hill Eric D
• Patel Hetal
• Leadingham Brian T

Classifications

• A61M27/00

  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}) · CPC title

• A61M1/604 Primary

  Bag or liner in a rigid container, with suction applied to both · CPC title

• A61M1/0001 Primary

  Human Necessities · mapped topic

• A61M1/0017

  Human Necessities · mapped topic

• A61M1/0049

  Human Necessities · mapped topic