Waste container for negative pressure therapy

• US 7,927,318 B2
• Filed: 09/20/2005
• Issued: 04/19/2011
• Est. Priority Date: 10/11/2001
• Status: Expired due to Fees

• Current Assignee: KCI Licensing Incorporated (3M Company)
• Original Assignee: KCI Medical Resources Unlimited Company (3M Company)
• Inventors: Risk, James Robert Jr., Bitel, Alexander B., Lockwood, Jeffrey S., Petrosenko, Robert
• Primary Examiner(s): HAND, MELANIE JO
• Application Number:
  US11/230,988
• Publication Number:
  US 20060015087A1
• Time in Patent Office: 2,037 Days
• Field of Search: 604317-319, 604/324, 604/304, 604/305, 604/307, 604/326, 604/320, 604/322
• US Class Current: 604/305
• CPC Class Codes: A61M 1/784 by filtering, sterilising or disinfecting the exhaust air, e.g. swellable filter valves
• CPC Class Codes: A61M 1/96 Suction control thereof
• CPC Class Codes: A61M 1/982 with means for detecting level of collected exudate
• 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 system for treating a patient with a wound comprises a bandage, a receptacle, and a vacuum source. The bandage comprises a cover to seal about the wound and to define a space above the wound in which a vacuum is to be formed. The bandage further comprises a port providing communication with the space. The receptacle is connected to the port to receive exudate from the wound and is provided to be placed below the wound. The vacuum source is spaced apart from the receptacle, is connected to the receptacle, and is effective to provide a vacuum in the receptacle and in the space.

Claims

1. A system for treating a patient with a wound, the system comprising:

(a) a bandage comprising a cover to seal about the wound and define a space above the wound in which a vacuum is to be formed, and a port providing communication with the space,

(b) a receptacle positioned at an elevation below the wound, the receptacle comprising a body having an upper portion and a lower portion including a wound exudate-collecting cavity, the upper portion having an inlet port, an outlet port and an air vent in direct communication with the wound exudate-collecting cavity and configured for communication with the surrounding atmosphere, the inlet port being connected to the port of the bandage to receive exudate from the wound,

(c) a vacuum source connected to the outlet port of the receptacle, the vacuum source positioned at an elevation vertically higher than the receptacle and being effective to provide a vacuum in the receptacle and in the space and to pull air from the surrounding atmosphere into the wound exudate-collecting cavity of the receptacle through the air vent as wound exudate is received through the inlet port into the wound exudate-collecting cavity of the receptacle, and

(d) a housing spaced apart from the receptacle and carrying the vacuum source, the housing not carrying the receptacle.

2. The system of claim 1, further including a first tube coupled to the port of the bandage and the inlet port of the receptacle and a second tube coupled to the vacuum source and the outlet port of the receptacle.

3. The system of claim 1, wherein the receptacle further includes a mounting portion for attaching the receptacle to a support.

4. The system of claim 1, wherein the receptacle further includes an anti-microbial filter adjacent the outlet port.

5. The system of claim 4, wherein the filter is hydrophobic.

7. The system of claim 1, wherein the upper portion of the receptacle is formed from a rigid material.

8. The system of claim 7, further comprising a support for supporting the housing carrying the vacuum source away from the receptacle and at an elevation vertically higher than the receptacle.

9. The system of claim 7, wherein the lower portion of the receptacle is formed from a flexible material.

10. The system of claim 1, wherein the vacuum bandage, receptacle, and vacuum source are configured to operate in series with each other.

11. The system of claim 1, comprising a control dominating the vacuum source, the control being configured to establish the amount of vacuum applied to the space.

12. The system of claim 11, wherein the control is configured to establish the time when vacuum is applied to the space.

15. The system of claim 1, wherein the vacuum source is positioned at an elevation vertically higher than the bandage.

6. A system for treating a patient with a wound, the system comprising:

(a) a bandage comprising a cover to seal about the wound and define a space above the wound in which a vacuum is to be formed, and a port providing communication with the space,

(b) a receptacle positioned at an elevation below the wound, the receptacle comprising a body having an upper portion and a lower portion, the upper portion having an inlet port, an outlet port and an air vent, the inlet port being connected to the port of the bandage to receive exudate from the wound,

(c) a vacuum source connected to the outlet port of the receptacle, the vacuum source positioned at an elevation vertically higher than the receptacle and being effective to provide a vacuum in the receptacle and in the space and to pull air into the receptacle through the air vent as wound exudate is received through the inlet port into the receptacle, and

(d) a housing spaced apart from the receptacle and carrying the vacuum source, the housing not carrying the receptacle,

wherein the receptacle further includes an anti-microbial filter adjacent the outlet port, and

wherein the air vent is positioned adjacent the outlet port and the anti-microbial filter is positioned over the air vent.

13. A method for treating a wound on a patient, the method comprising the steps of:

(a) sealing a bandage having a port about the wound to define a space above the wound and in communication with the port in which a vacuum can be formed,

(b) placing a receptacle below and away from the wound, the receptacle having an inlet port, an outlet port and an air vent,

(c) placing a portable housing carrying a vacuum source, the vacuum source positioned at an elevation vertically higher than the receptacle, the housing not carrying the receptacle,

(d) connecting the inlet port of the receptacle to the port of the bandage,

(e) connecting the vacuum source to the outlet port of the receptacle, and

(f) operating the vacuum source to provide a vacuum in the receptacle and in the space above the wound and to pull air into the receptacle through the air vent.

14. The method of claim 13, comprising the step of controlling the level of vacuum applied to the space and the time of application of the vacuum.

16. A system for creating a vacuum above a wound and drawing exudate away from the wound, the system comprising:

(a) a vacuum bandage to place over and seal about the wound on a patient to provide a vacuum space above the wound and a port communicating with the space,

(b) a receptacle positioned at an elevation below the wound, the receptacle having an inlet port and an outlet port, the inlet port of the receptacle being in communication through the port of the bandage with the vacuum space,

(c) a vacuum source connected to the outlet port of the receptacle, the vacuum source positioned at an elevation vertically higher than the receptacle and operable to provide a vacuum in the receptacle and in the vacuum space, thereby subjecting a surface of the wound to vacuum therapy, and

(d) a portable housing spaced apart from the receptacle and carrying the vacuum source, the housing not carrying the receptacle;

wherein the vacuum source comprises a vacuum pump and associated controls, the pump being connected to the outlet port of the receptacle

wherein the vacuum source is positioned at an elevation vertically higher than the bandage.