Manifolds, systems, and methods for administering reduced pressure to a subcutaneous tissue site

Abstract

Systems, methods, and apparatuses are provided for delivering reduced pressure to a subcutaneous tissue site, such as a bone tissue site. In one instance, a manifold for providing reduced pressure to a subcutaneous tissue includes a longitudinal manifold body formed with at least one purging lumen and a reduced-pressure lumen. The manifold further includes a plurality of manifolding surface features or slits formed on the second, tissue-facing side of the longitudinal manifold body and a plurality of apertures formed in the longitudinal manifold body on the second, tissue-facing side. The plurality of apertures fluidly couple the reduced-pressure lumen and the manifolding surface features or slits. The manifold further includes an end cap fluidly coupling the reduced-pressure lumen and the at least one purging lumen. Other systems, apparatuses, and methods are presented.

We claim: 
     
         1 . A manifold for providing reduced pressure, the manifold comprising:
 a body having a first side and a second side, the first side and the second side being non-uniform;   a reduced-pressure lumen disposed in the body and extending a length of the body;   a plurality of apertures formed on the second side of the body; and   a plurality of conduits disposed in the body and fluidly coupling the plurality of apertures to the reduced-pressure lumen.   
     
     
         2 . The manifold of  claim 1 , wherein the first side is curved relative to the second side. 
     
     
         3 . The manifold of  claim 1 , wherein the first side is curved and the second side is substantially flat. 
     
     
         4 . The manifold of  claim 1 , wherein the manifold is unibody. 
     
     
         5 . The manifold of  claim 1 , wherein the body is formed from silicone. 
     
     
         6 . The manifold of  claim 1 , wherein the plurality of apertures have a symmetrical pattern. 
     
     
         7 . The manifold of  claim 1 , further comprising a plurality of surface features formed on the second side of the body. 
     
     
         8 . The manifold of  claim 7 , wherein the plurality of surface features are configured to manifold reduced pressure. 
     
     
         9 . The manifold of  claim 7 , wherein the plurality of surface features comprise a plurality of standoffs. 
     
     
         10 . The manifold of  claim 7 , wherein the plurality of surface features comprise a plurality of offsets. 
     
     
         11 . The manifold of  claim 7 , wherein the plurality of surface features are integral to the body. 
     
     
         12 . The manifold of  claim 7 , wherein the plurality of surface features comprise a first longitudinal member and a second longitudinal member, the first longitudinal member and the second longitudinal member being parallel to each other and extending a portion of a length of the body, each of the first longitudinal member and the second longitudinal member separating a portion of the apertures form the plurality of apertures. 
     
     
         13 . The manifold of  claim 1 , further comprising a purging lumen disposed in the body and extending a length of the body. 
     
     
         14 . The manifold of  claim 13 , further comprising an end cap disposed on a distal end of the body and fluidly coupling the reduced-pressure lumen and the at least one purging lumen through a header space in the end cap, the end cap being integral to the body. 
     
     
         15 . The manifold of  claim 13 , wherein the purging lumen comprises a plurality of purging lumens. 
     
     
         16 . The manifold of  claim 15 , wherein the plurality of purging lumens are symmetrically spaced about the reduced-pressure lumen. 
     
     
         17 . The manifold of  claim 13 , wherein the purging lumen comprises a first purging lumen, the manifold further comprising a second purging lumen, the first purging lumen and the second purging lumen symmetrically disposed about the reduced-pressure lumen. 
     
     
         18 . The manifold of  claim 1 , further comprising a pressure-sensing lumen. 
     
     
         19 . The manifold of  claim 1 , further comprising a connecter coupled to a proximal end of the body, the connecter configured to fluidly couple a reduced-pressure delivery tube to the reduced-pressure lumen. 
     
     
         20 . The manifold of  claim 1 , further comprising one or more radio-opaque markers configured to be imaged by fluoroscopy. 
     
     
         21 . The manifold of  claim 1 , wherein the body is configured to be imaged by ultrasound. 
     
     
         22 . A system for providing reduced pressure to a tissue site located proximate to a spine, the system comprising:
 a reduced-pressure source;   a reduced-pressure delivery conduit configured to be fluidly coupled to the reduced-pressure source;   a manifold comprising:
 a body having a first side and a second side, the first side and the second side being non-uniform, 
 a reduced-pressure lumen disposed in the body and extending a length of the body, 
 a plurality of apertures formed on the second side of the body, and 
 a plurality of conduits disposed in the body and fluidly coupling the plurality of apertures to the reduced-pressure lumen; and 
   a connecter configured to be coupled to a proximal end of the body, the connecter further configured to fluidly couple the reduced-pressure delivery conduit to the reduced-pressure lumen.   
     
     
         23 . The system of  claim 22 , wherein the first side is curved relative to the second side. 
     
     
         24 . The system of  claim 22 , wherein the first side is curved and the second side is substantially flat. 
     
     
         25 . The system of  claim 22 , wherein the manifold is unibody. 
     
     
         26 . The system of  claim 22 , wherein the body is formed from silicone. 
     
     
         27 . The system of  claim 22 , wherein the plurality of apertures have a symmetrical pattern. 
     
     
         28 . The system of  claim 22 , further comprising a plurality of surface features formed on the second side of the body. 
     
     
         29 . The system of  claim 28 , wherein the plurality of surface features are configured to manifold reduced pressure. 
     
     
         30 . The system of  claim 28 , wherein the plurality of surface features comprise a plurality of standoffs. 
     
     
         31 . The system of  claim 28 , wherein the plurality of surface features comprise a plurality of offsets. 
     
     
         32 . The system of  claim 28 , wherein the plurality of surface features are integral to the body. 
     
     
         33 . The system of  claim 28 , wherein the plurality of surface features comprise a first longitudinal member and a second longitudinal member, the first longitudinal member and the second longitudinal member being parallel to each other and extending a portion of a length of the body, each of the first longitudinal member and the second longitudinal member separating a portion of the apertures from the plurality of apertures. 
     
     
         34 . The system of  claim 33 , further comprising a purging lumen disposed in the body and extending a length of the body. 
     
     
         35 . The system of  claim 34 , further comprising an end cap disposed on a distal end of the body and fluidly coupling the reduced-pressure lumen and the at least one purging lumen through a header space in the end cap, the end cap being integral to the body. 
     
     
         36 . The system of  claim 34 , wherein the purging lumen comprises a plurality of purging lumens. 
     
     
         37 . The system of  claim 36 , wherein the plurality of purging lumens are symmetrically spaced about the reduced-pressure lumen. 
     
     
         38 . The system of  claim 34 , wherein the purging lumen comprises a first purging lumen, the manifold further comprising a second purging lumen, the first purging lumen and the second purging lumen symmetrically disposed about the reduced-pressure lumen. 
     
     
         39 . The system of  claim 22 , further comprising a pressure-sensing lumen. 
     
     
         40 . The system of  claim 22 , further comprising one or more radio-opaque markers configured to be imaged by fluoroscopy. 
     
     
         41 . The system of  claim 22 , wherein the body is configured to be imaged by ultrasound. 
     
     
         42 . A method of delivering reduced pressure to a tissue site, the method comprising:
 inserting a manifold into a subcutaneous location proximate to a spine, the manifold comprising:
 a body having a first side and a second side, the first side and the second side being non-uniform, 
 a reduced-pressure lumen disposed in the body and extending a length of the body; 
 a plurality of apertures formed on the second side of the body, 
 a plurality of conduits disposed in the body and fluidly coupling the plurality of apertures to the reduced-pressure lumen, and 
 a connecter coupled to a proximal end of the body, the connecter configured to fluidly couple a reduced-pressure delivery tube to the reduced-pressure lumen; and 
   supplying reduced pressure to the manifold from a reduced-pressure source.   
     
     
         43 . The method of  claim 42 , wherein the method further comprises orienting the plurality of apertures to face the tissue site. 
     
     
         44 . The method of  claim 43 , wherein the first side is curved and the second side is substantially flat, and orienting the plurality of apertures comprises rotating the manifold so that the second side faces the tissue site. 
     
     
         45 . The method of  claim 42 , wherein the manifold further comprises a purging lumen disposed in the body and extending a length of the body, the method further comprises supplying a purging fluid to the purging lumen. 
     
     
         46 . The method of  claim 45 , wherein the manifold further comprises an end cap disposed on a distal end of the body and fluidly coupling the reduced-pressure lumen and the at least one purging lumen through a header space in the end cap, the end cap being integral to the body. 
     
     
         47 . The method of  claim 42 , wherein the manifold further comprises a pressure-sensing lumen and the method further comprises sensing a pressure at the tissue site through the pressure-sensing lumen. 
     
     
         48 . The method of  claim 42 , wherein the manifold further comprises one or more radio-opaque markers and the method further comprises imaging the manifold using fluoroscopy. 
     
     
         49 . The method of  claim 42 , wherein the method further comprises imaging the manifold using ultrasound.