Cardiac repair structure, apparatus, and methods thereof

Abstract

A repair structure apparatus for cardiac surgery is disclosed. The repair structure apparatus includes a fluid reservoir and a platform comprising a porous surface in communication with the fluid reservoir, with a port in communication with the porous surface. The apparatus includes a cutting template configured to align with the platform and a slicing sled configured to engage the platform. A cutting template for constructing a repair structure for cardiac surgery is further disclosed. The cutting template includes a frame having at least one arcuate lobe; and at least one sharpened edge. A device for constructing a repair structure for cardiac surgery is also disclosed, wherein the device includes a porous platform. A repair structure for cardiac surgery is disclosed. The repair structure includes a tissue sheet, wherein the tissue sheet is folded along a free edge of the tissue sheet.

What is claimed is: 
     
         1 . A repair structure for cardiac surgery, the repair structure comprising:
 a sheet of harvested pericardial tissue, the sheet comprising:
 a folded edge line that extends from a first end to a second end opposite the first end; 
 a first lobe line that extends from a first end to a second end opposite the first end, wherein the first lobe line is parallel to and offset from the folded edge line by a first distance; 
 a second lobe line that extends from a first end to a second end opposite the first end, wherein the second lobe line is parallel to and offset from the folded edge line by a second distance; 
 a first portion of a first lobe, a first portion of a second lobe, and a first portion of a third lobe, wherein each of the first portion of the first lobe, the first portion of the second lobe, and the first portion of the third lobe is at least partially defined by a corresponding perimeter edge having a shape that is curved, and wherein a starting point and an ending point of the perimeter edge of each of the first portion of the first lobe, the first portion of the second lobe, and the first portion of the third lobe is on or adjacent to the first lobe line; and 
 a second portion of the first lobe, a second portion of the second lobe, and a second portion of the third lobe, wherein each of the second portion of the first lobe, the second portion of the second lobe, and the second portion of the third lobe is at least partially defined by a corresponding perimeter edge having a shape that is curved, and wherein a starting point and an ending point of the perimeter edge of each of the second portion of the first lobe, the second portion of the second lobe, and the second portion of the third lobe is on or adjacent to the second lobe line, 
   wherein the sheet is configured to be folded about the folded edge line such that the first lobe line is aligned with the second lobe line and the perimeter edge of the first portion of the first lobe is aligned with the perimeter edge of the second portion of the first lobe, the perimeter edge of the first portion of the second lobe is aligned with the perimeter edge of the second portion of the second lobe, and the perimeter edge of the first portion of the third lobe is aligned with the perimeter edge of the second portion of the third lobe, and   wherein the first portion of the first lobe and the second portion of the first lobe are configured to be folded about the first lobe line and the second lobe line, respectively, to form the first lobe, wherein the first portion of the second lobe and the second portion of the second lobe are configured to be folded about the first lobe line and the second lobe line, respectively, to form the second lobe, and wherein the first portion of the third lobe and the second portion of the third lobe are configured to be folded about the first lobe line and the second lobe line, respectively, to form the third lobe.   
     
     
         2 . The repair structure of  claim 1 , wherein the first portion of the first lobe and the second portion of the first lobe are symmetrical about the folded edge line, wherein the first portion of the second lobe and the second portion of the second lobe are symmetrical about the folded edge line, and wherein the first portion of the third lobe and the second portion of the third lobe are symmetrical about the folded edge line. 
     
     
         3 . The repair structure of  claim 1 , wherein the starting point of the first portion of the first lobe is disposed at the first end of the first lobe line and the ending point of the first portion of the third lobe is disposed at the second end of the first lobe line. 
     
     
         4 . The repair structure of  claim 1 , wherein the starting point of the second portion of the first lobe is disposed at the first end of the second lobe line and the ending point of the second portion of the third lobe is disposed at the second end of the second lobe line. 
     
     
         5 . The repair structure of  claim 1 , wherein the first distance is equal to the second distance. 
     
     
         6 . The repair structure of  claim 1 , wherein the shape of the perimeter edge of each of the first portion of the first lobe, the second portion of the first lobe, the first portion of the second lobe, the second portion of the second lobe, the first portion of the third lobe, and the second portion of the third lobe is identical. 
     
     
         7 . The repair structure of  claim 1 , wherein the shape of the perimeter edge of each of the first portion of the first lobe, the second portion of the first lobe, the first portion of the second lobe, the second portion of the second lobe, the first portion of the third lobe, and the second portion of the third lobe is a segment of a circle. 
     
     
         8 . The repair structure of  claim 7 , wherein the shape of the perimeter edge of each of the first portion of the first lobe, the second portion of the first lobe, the first portion of the second lobe, the second portion of the second lobe, the first portion of the third lobe, and the second portion of the third lobe is a semi-circle. 
     
     
         9 . The repair structure of  claim 1 , wherein the starting point and the ending point of the perimeter edge of each of the first portion of the first lobe, the first portion of the second lobe, and the first portion of the third lobe intersects the first lobe line, and wherein the starting point and the ending point of the perimeter edge of each of the second portion of the first lobe, the second portion of the second lobe, and the second portion of the third lobe intersects the second lobe line. 
     
     
         10 . The repair structure of  claim 1 , the sheet further comprising:
 a first transverse fold line that extends from a first end to a second end opposite the first end, wherein the first transverse fold line extends between the first lobe line and the second lobe line, the first end of the first transverse fold line is at or adjacent to the first lobe line, the second end of the first transverse fold line is at or adjacent to the second lobe line, the first end of the first transverse fold line is at or adjacent to the ending point of the perimeter edge of the first portion of the first lobe, and the second end of the first transverse fold line is at or adjacent to the ending point of the perimeter edge of the second portion of the first lobe; and   a second transverse fold line that extends from a first end to a second end opposite the first end, wherein the second transverse fold line extends between the first lobe line and the second lobe line, the first end of the second transverse fold line is at or adjacent to the first lobe line, the second end of the second transverse fold line is at or adjacent to the second lobe line, the first end of the second transverse fold line is at or adjacent to the ending point of the perimeter edge of the first portion of the second lobe, and the second end of the second transverse fold line is at or adjacent to the ending point of the perimeter edge of the second portion of the second lobe.   
     
     
         11 . The repair structure of  claim 10 , wherein each of the first transverse fold line and the second transverse fold line extends normal to the folding edge line. 
     
     
         12 . The repair structure of  claim 11 , wherein the sheet is configured to be folded about the first transverse fold line and the second transverse fold line such that the first end of the first lobe line is disposed at or adjacent to the second end of the first lobe line and the first end of the second lobe line is disposed at or adjacent to the second end of the second lobe line. 
     
     
         13 . The repair structure of  claim 12 , wherein when the sheet is folded about the first transverse fold line and the second transverse fold line:
 a first side wall is partially defined by the first transverse fold line, a first portion of the first lobe line, and a first portion of the folded edge line,   a second side wall is partially defined by the first transverse fold line, the second transverse fold line, a second portion of the first lobe line, and a second portion of the folded edge line, and   a third side wall is partially defined by the second transverse fold line, a third portion of the first lobe line, and a third portion of the folded edge line.   
     
     
         14 . The repair structure of  claim 13 , wherein the first side wall, the second side wall, and the third side wall cooperate to form a substantially triangular shape. 
     
     
         15 . A repair structure apparatus for cardiac surgery, comprising:
 a fluid reservoir;   a platform comprising a porous surface in communication with the fluid reservoir;   a port in communication with the porous surface;   a cutting template configured to align with the platform;   a slicing sled configured to engage the platform, wherein a blade coupled to the slicing sled; and   a manifold in communication with the platform, wherein the manifold further comprises at least one port.   
     
     
         16 . The repair structure apparatus for cardiac surgery of  claim 15 , further comprising a folding substrate. 
     
     
         17 . The repair structure apparatus for cardiac surgery of  claim 15 , wherein the platform further comprises a first platform segment and a second platform segment, wherein the first platform segment and the second platform segment are pivotably coupled. 
     
     
         18 . The repair structure apparatus for cardiac surgery of  claim 15 , wherein the cutting template comprises a frame having at least one arcuate lobe, and a sharpened edge.