Disruptive dressing for use with negative pressure and fluid instillation

1. A method for disrupting material at a tissue site, the method comprising:

selecting a contact layer for use on the tissue site, wherein the contact layer comprises walls defining a plurality of through-holes, and wherein the contact layer has a first thickness at ambient pressure;

positioning the contact layer adjacent to the tissue site;

positioning a sealing member over the contact layer;

sealing the sealing member to tissue surrounding the tissue site to form a sealed space enclosing the contact layer;

fluidly coupling a negative-pressure source to the sealed space;

supplying negative pressure to the sealed space and the contact layer;

compressing the contact layer to a second thickness that is less than the first thickness; and

drawing tissue into the through-holes to form nodules having a height no greater than the second thickness.

2. The method of claim 1 , wherein the method further comprises positioning a retainer layer over the contact layer.

3. The method of claim 2 , wherein the method further comprises:

drawing portions of the retainer layer into the plurality of through-holes of the contact layer to form bosses; and

contacting a top of the nodules to limit a height of the nodules.

4. The method of claim 1 , wherein the method further comprises rupturing debris on the nodules.

5. The method of claim 1 , wherein the method further comprises removing debris from a surface of the tissue site.

6. The method of claim 1 , wherein the method further comprises applying force to material at the tissue site through the through-holes.

7. The method of claim 1 , wherein the method further comprises debriding the nodules.

8. The method of claim 1 , wherein the method further comprises channeling negative pressure through the plurality of through-holes of the contact layer in response to supplying negative pressure to the sealed space to generate concentrated stresses in tissue adjacent to the plurality of through-holes.

9. The method of claim 1 , wherein the method further comprises generating macro-pressure points in the tissue adjacent to the plurality of through-holes in the contact layer in response to supplying negative pressure to the sealed space.

10. The method of claim 1 , wherein the method further comprises micro-floating the contact layer within the sealed space in response to supplying fluid to the sealed space from a fluid source.

11. The method of claim 1 , wherein selecting the contact layer comprises:

determining a status of debris in the tissue site;

determining other parameters influencing treatment of the tissue site;

in response to determining a status of debris and other parameters influencing treatment, determining desired targets of treatment; and

selecting the contact layer in response to the desired targets of treatment.

12. The method of claim 11 , wherein selecting the contact layer in response to the desired targets of treatment comprises:

selecting a thickness of the contact layer;

selecting a firmness factor of the contact layer;

selecting a shape of the through-holes; and

selecting an effective diameter of the through-holes.

13. A method for disrupting material at a tissue site, the method comprising:

selecting a contact layer for use on the tissue site, wherein the contact layer comprises walls defining a plurality of through-holes;

positioning the contact layer adjacent to the tissue site;

positioning a retainer layer over the contact layer;

positioning a sealing member over the contact layer and the retainer layer;

sealing the sealing member to tissue surrounding the tissue site to form a sealed space enclosing the contact layer and the retainer layer;

fluidly coupling a negative-pressure source to the sealed space;

supplying negative pressure to the sealed space, the contact layer, and the retainer layer;

drawing tissue into the through-holes to form nodules;

drawing portion of the retainer layer into the plurality of through-holes of the contact layer to form bosses; and

contacting a top of the nodules using the bosses to limit a height of the nodules.

14. The method of claim 13 , wherein the method further comprises rupturing debris on the nodules.

15. The method of claim 13 , wherein the method further comprises removing debris from a surface of the tissue site.

16. The method of claim 13 , wherein the method further comprises applying force to material at the tissue site through the through-holes.

17. A method for disrupting material at a tissue site, the method comprising:

selecting a contact layer for use on the tissue site, wherein the contact layer comprises walls defining a plurality of through-holes;

positioning the contact layer adjacent to the tissue site;

positioning a sealing member over the contact layer;

sealing the sealing member to tissue surrounding the tissue site to form a sealed space enclosing the contact layer;

fluidly coupling a negative-pressure source to the sealed space;

supplying negative pressure to the sealed space and the contact layer to draw tissue into the through-holes to form nodules; and

micro-floating the contact layer within the sealed space in response to supplying fluid to the sealed space from a fluid source.

18. The method of claim 17 , wherein the method further comprises generating macro-pressure points in the tissue adjacent to the plurality of through-holes in the contact layer in response to supplying negative pressure to the sealed space.

19. The method of claim 17 , wherein the method further comprises channeling negative pressure through the plurality of through-holes of the contact layer in response to supplying negative pressure to the sealed space to generate concentrated stresses in tissue adjacent to the plurality of through-holes.