Biopsy cavity marking device and method
These are breast implant devices and methods of use. The breast implants are made of a matrix of collagen material having a porous structure for supporting surrounding tissue of a breast. The implants are also configured to provide a framework for the in-growth of fibrous tissue into the matrix. The matrix can be resilient and/or self-expanding. The methods of use include the steps of forming a cavity having surrounding breast tissue and forming a resorbable implant made up of collagen that is sized to occupy the cavity. The implant is then implanted into the cavity, thereby supporting the surrounding tissue and allowing for in-growth of fibrous tissue into and replacing the resorbable material. The resorbable material may also be elastically compressible, such that the step of implanting includes the step of compressing the resorbable material. The implants may also contain a medicinal, therapeutic, or diagnostic substance.
1 . A breast implant comprising a matrix of collagen material, the matrix having a porous structure for supporting surrounding tissue of a breast and configured to provide a framework for the in-growth of fibrous tissue into the matrix.
2 . The breast implant of claim 1 , wherein the matrix comprises a foam.
3 . The breast implant of claim 1 , wherein the matrix comprises a resilient framework for implantation by compressing the matrix into a smaller volume, the matrix expanding resiliently within the breast.
4 . The breast implant of claim 1 , wherein the matrix is self-expanding.
5 . A method for replacing excised human breast tissue with an implant comprising the steps of:
forming a cavity having surrounding tissue within a breast;
forming the implant entirely of resorbable material comprising collagen and sizing the implant to occupy the cavity; and
implanting the implant in the cavity, the implant supporting the surrounding tissue and allowing for in-growth of fibrous tissue into and replacing the resorbable material, wherein the resorbable material is elastically compressible, and the step of implanting includes the step of compressing the resorbable material.
6 . The method of claim 5 , further comprising the step of introducing into the implant at least one of a medicinal, therapeutic or diagnostic substance.
7 . The method of claim 6 , wherein the at least one substance is selected from the group consisting of radiation material, chemotherapies, cancer therapies, hemostatic material, and radiographic markers.
8 . The method of claim 5 , wherein the step of implanting the implant in the cavity comprises expanding the implant within the cavity.
9 . A method for replacing excised human breast tissue with an implant comprising the steps of:
forming a cavity having surrounding tissue within a breast;
forming the implant entirely of resorbable material comprising collagen; and
implanting the implant in the cavity, the implant supporting the surrounding tissue and allowing for in-growth of fibrous tissue into and replacing the resorbable material, wherein the resorbable material is elastically compressible, and the step of implanting includes the step of compressing the resorbable material.
10 . The method of claim 9 , further comprising the step of introducing into the implant at least one of a medicinal, therapeutic or diagnostic substance.
11 . The method of claim 10 , wherein the at least one substance is selected from the group consisting of radiation material, chemotherapies, cancer therapies, hemostatic material, and radiographic markers.
12 . The method of claim 9 , wherein the step of implanting the implant in the cavity comprises expanding the implant within the cavity.
13 . A method for replacing excised human breast tissue with an implant comprising the steps of:
forming a cavity having surrounding tissue within a breast;
forming an implant entirely of resorbable material and sizing the implant to occupy the cavity; and
implanting the implant in the cavity, the implant supporting the surrounding tissue and allowing for in-growth of fibrous tissue into and replacing the resorbable material, wherein the resorbable material is formed from a self-expanding foam and the step of implanting is performed by injection of the self-expanding foam.
14 . The method of claim 13 , further comprising the step of introducing into the implant at least one of a medicinal, therapeutic or diagnostic substance.
15 . The method of claim 14 , wherein the at least one substance is selected from the group consisting of radiation material, chemotherapies, cancer therapies, hemostatic material, and radiographic markers.