Mechanical barrier in wound healing

Abstract

The present invention relates to an implantable, disposable barrier disc to be used in negative pressure treatment of wounds, in particular sternotomy wounds, wherein the barrier disc consists of a rigid material withstanding a negative pressure of at least −50 mmHg without causing deformation to the barrier disc, and that the barrier disc is perforated to allow drainage of wound fluid through said barrier disc.

1 . An implantable, disposable barrier disc to be used in negative pressure treatment of wounds, in particular sternotomy wounds, characterized in that the barrier disc consists of a rigid material withstanding a negative pressure of at least −50 mmHg without causing deformation to the barrier disc, and that the barrier disc is perforated to allow drainage of wound fluid through said barrier disc. 
     
     
         2 . An implantable barrier disc according to  claim 1 , wherein the barrier disc is provided with flexible edges that not damage surrounding vital structures. 
     
     
         3 . An implantable barrier disc according to  claim 1 , wherein the barrier disc withstands a negative pressure of at least −200 mmHg or greater negative pressure. 
     
     
         4 . An implantable barrier disc according to  claim 1 , wherein the barrier disc is further attached to a wound interface dressing. 
     
     
         5 . An implantable barrier disc according to  claim 4 , wherein the wound interface dressing is a spongy foam material consists of medical clinical foam material. 
     
     
         6 . An implantable barrier disc according to  claim 5 , wherein the spongy foam material consists of a polyurethane. 
     
     
         7 . An implantable barrier disc according to  claim 1 , wherein the edges of the barrier disc are flexible and able to adapt to the surrounding inner wound contour at an application inside a wound. 
     
     
         8 . An implantable barrier disc according to  claim 1 , wherein the barrier disc is made of a biocompatible material. 
     
     
         9 . An implantable barrier disc according to  claim 8 , wherein the biocompatible material is a clinical silicone material. 
     
     
         10 . An implantable barrier disc according to  claim 8 , wherein the biocompatible material is a polylactic acid polymer or copolymer. 
     
     
         11 . A method for healing wounds, wherein an implantable, disposable barrier disc is inserted in wounds, in particular sternotomy wounds, and used in conjunction with topical negative pressure therapy whereby the barrier disc consists of a rigid material withstanding a negative pressure of −200 mmHg without causing deformation to the barrier disc, and that the barrier disc is perforated to allow drainage of wound fluids through said barrier disc, the barrier disc being placed to overbridge any surgically produced opening and to hinder any tissue from entering any such surgically produced opening, and to hinder underlying vital structures from being damaged when coming into contact with the wound edges, i.e. the sternum.