Surgical cavity drainage and closure system

• US 9,597,484 B2
• Filed: 04/13/2012
• Issued: 03/21/2017
• Est. Priority Date: 04/15/2011
• Status: Active Grant

• Current Assignee: University Of Massachusetts
• Original Assignee: University Of Massachusetts
• Inventors: Dunn, Raymond M.
• Primary Examiner(s): MARCETICH, ADAM M
• Application Number:
  US14/111,977
• Publication Number:
  US 20140039468A1
• Time in Patent Office: 1,803 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61F 13/00072 Packaging of dressings
• CPC Class Codes: A61F 13/0203 with fluid retention members
• CPC Class Codes: A61F 13/05 specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
• CPC Class Codes: A61F 13/148 Abdomen bandages or bandaging garments
• CPC Class Codes: A61F 2013/00174 possibility of applying pressure
• CPC Class Codes: A61F 2013/00412 for use with needles, tubes or catheters
• CPC Class Codes: A61F 2013/00536 for draining or irrigating wounds
• CPC Class Codes: A61F 2013/0054 for deep wounds
• CPC Class Codes: A61M 1/70 Gravity drainage systems drainage containers not being adapted for subjection to vacuum A61M1/69
• CPC Class Codes: A61M 1/71 Suction drainage systems containers therefor A61M1/60, A61M1/64; negative pressure wound therapy systems A61M1/90
• CPC Class Codes: A61M 1/76 Handpieces specially for suction-irrigation A61M1/774, aspiration tips A61M1/84
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 1/915 Constructional details of the pressure distribution manifold
• CPC Class Codes: A61M 1/916 specially adapted for deep wounds
• CPC Class Codes: A61M 2027/004 with at least a part of the circuit outside the body
• CPC Class Codes: A61M 2205/3334 Measuring or controlling the flow rate
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• 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 surgical drain device includes an adhesion matrix of biodegradable polymer material and a plurality of drain tubes attached to the matrix. The device is implanted within a surgical wound to treat the presence of seromas, for example, and is used to promote drainage, tissue adhesion, and wound closure. The drain tubes converge into a common collection tube that leads wound fluid outside the body under gravity feed or negative pressure applied to the collection tube. The matrix contains an array of apertures that allow tissue contact across the device. The device also can include a coating of surgical adhesive and a tissue anchoring system of hooks or barbs. The device and systems containing the device are particularly useful to promote the healing of surgical wounds from abdominal surgery.

Claims

1. A method for treating a wound, the method comprising the steps of:

positioning a matrix into a surgical wound, the matrix being connected to tissue in the wound with a plurality of tissue anchors extending from a surface of the matrix, wherein the matrix comprises a layer of biodegradable material having a plurality of spaced apart apertures such that tissue on a first side of the matrix contacts tissue on second side of the matrix through the spaced apart apertures in the matrix;

attaching a negative pressure source to a drain device that is in fluid communication with the matrix, the drain device including a plurality of drain tubes extending across tube receiving regions of the matrix the plurality of drain tubes being positioned in the tube receiving regions between spaced apart apertures in the matrix;

draining fluid from the wound for a period of time; and

removing the plurality of drain tubes of the drain device from the wound such that the matrix remains in the wound.

2. The method of claim 1 further comprising attaching fascia tissue to the matrix with a first plurality of tissue anchors.

3. The method of claim 1 further comprising using an adhesive to attach tissue.

4. The method of claim 1 further comprising applying sufficient pressure to provide tissue contact through apertures of the matrix wherein the tissue on a first side of the matrix contacts tissue on a second side of the matrix through the apertures such that the tissue on the first side adheres to the tissue on the second side after at least partial healing.

5. The method of claim 4 wherein the apertures comprise at least 50 percent of a total matrix surface area.

6. The method of claim 1 further comprising applying a wound dressing to the wound.

7. The method of claim 6 further comprising applying a negative pressure to the wound dressing.

8. The method of claim 1 further comprising attaching the matrix with a second plurality of tissue anchors to adipose tissue.

9. The method of claim 1 further comprising attaching the matrix with a second plurality of tissue anchors to fascia and/or muscle tissue.

10. The method of claim 1 further comprising measuring a fluid flow rate through the drain device wherein the drain tubes are removed in response to a measure flow rate.

11. The method of claim 1 further comprising measuring an amount of seroma within the wound with an ultrasound device.

12. The method of claim 1 wherein the tube receiving regions are on a surface of the matrix and include channels that receive one or more drain tubes in the channels.

13. The method of claim 1 wherein the matrix comprises additional apertures that enable flow of fluid laterally into the plurality of drain tubes.

14. The method of claim 1 further comprising measuring a condition of the matrix within the wound with a diagnostic measurement device.

15. The method of claim 14 further comprising generating patient data with the diagnostic measurement device.

16. The method of claim 1 further comprising positioning the matrix wherein the matrix comprises a porous material between the apertures and the apertures comprise at least about 50 percent of the surface of the matrix.

17. The method of claim 1 further comprising at least partially closing the surgical wound such that the matrix is retained in the wound.

18. The method of claim 17 wherein the partially closed surgical wound comprises an opening for a drain tube.

19. The method of claim 1 wherein the positioning step further comprises positioning the matrix wherein the matrix includes a layer of a porous material that extends between the apertures.

20. The method of claim 19 wherein the plurality of apertures comprise at least about 50 percent of the surface area of the matrix.

21. The method of claim 1 further comprising folding a flap of tissue onto a side of the matrix.

22. The method of claim 1 wherein the plurality of apertures are open and comprise an area in a range of 75 to 80 percent of the surface area of the matrix.