Abstract: The present invention provides a decellularized collagenous tissue and a method for processing an artificial heart valve containing the decellularized collagenous tissue. The method comprises immersing the decellularized collagenous tissue in a preservation liquid containing an ionic liquid until the size of the decellularized collagenous tissue remains stable in a non-liquid environment. The present invention also provides a preservation method, comprising immersing the decellularized collagenous tissue or the artificial heart valve containing decellularized collagenous tissue in the preservation liquid containing ionic liquid until the size of the collagen tissue remains stable in the non-liquid environment. The present invention also provides a decellularized collagenous tissue and an artificial heart valve containing the decellularized collagenous tissue processed by the method described above.

Abstract: The present invention provides an artificial heart valve annuloplasty ring, including an outer layer (6) and an annular main body (8) integrally formed from multiple ring sections, the outer layer (6) is a fiber fabric layer covered on the outside of the annular main body (8), the annular main body (8) includes a tube with a tube wall that has a slotted structure capable of adjusting the rigidity of the annuloplasty ring. The artificial heart valve annuloplasty ring provided in the present invention has a simple structure, easy-to-adjust rigidity, and does not need to separately design and manufacture a mold for the main body of the annuloplasty ring during manufacturing.

Abstract: The present invention provides a method for preparing an artificial heart valve leaflet, comprising freezing an animal tissue membrane and processing the frozen animal tissue membrane so as to reach a preset thickness. The method, by processing the frozen animal tissue membrane, can conveniently obtain an artificial heart valve leaflet with a required thickness and increase the yield of the animal tissue membrane valve leaflet.

Abstract: The present invention provides an acellular collagenous tissue and a method for processing an artificial heart valve containing the acellular collagenous tissue. The method comprises immersing the acellular collagenous tissue in a preservation liquid containing an ionic liquid until the size of the acellular collagenous tissue remains stable in a non-liquid environment. The present invention also provides a preservation method, comprising immersing the acellular collagenous tissue or the artificial heart valve containing acellular collagenous tissue in the preservation liquid containing ionic liquid until the size of the collagen tissue remains stable in the non-liquid environment. The present invention also provides an acellular collagenous tissue and an artificial heart valve containing the acellular collagenous tissue processed by the method described above.

Abstract: The present invention provides an artificial heart valve annuloplasty ring, including an outer layer (6) and an annular main body (8) integrally formed from multiple ring sections, the outer layer (6) is a fiber fabric layer covered on the outside of the annular main body (8), the annular main body (8) includes a tube with a tube wall that has a slotted structure capable of adjusting the rigidity of the annuloplasty ring. The artificial heart valve annuloplasty ring provided in the present invention has a simple structure, easy-to-adjust rigidity, and does not need to separately design and manufacture a mold for the main body of the annuloplasty ring during manufacturing.

Abstract: An artificial heart valve annuloplasty ring, including an outer layer (6) and an inner layer main body structure (8), the outer layer (6) is covered on the outside of the inner layer main body structure (8), and is used to be sutured to heart tissue. The inner layer main body structure (8) has a tubular helical structure formed by curling a sheet material strip, the tubular helical structure can adjust rigidity of the annuloplasty ring. The artificial heart valve annuloplasty ring has a simple structure, easily adjustable rigidity, and is easy to manufacture and process.

Abstract: The present invention provides a method for preparing an artificial heart valve leaflet, comprising freezing an animal tissue membrane and processing the frozen animal tissue membrane so as to reach a preset thickness. The method, by processing the frozen animal tissue membrane, can conveniently obtain an artificial heart valve leaflet with a required thickness and increase the yield of the animal tissue membrane valve leaflet.