Organ model

Abstract

A material for forming an organ model containing an aqueous gel, which comprises polyvinyl alcohol having an average degree of polymerization of 300 to 3500 and a degree of saponification of not less than 90% by mole, and silica particles; a method for producing a material for forming an organ model, comprising cooling an aqueous polyvinyl alcohol solution which contains polyvinyl alcohol having an average degree of polymerization of 300 to 3500 and a degree of saponification of not less than 90% by mole and silica particles, to a temperature of −10° C. or lower, and thawing the resulting formed aqueous gel; and an organ model at least provided with a surface layer comprising the material for forming an organ model. Provided is an organ model which has a hydrophilic property similar to an organ of a human body, and gives such an incision feel of performing surgical procedures.

1 .- 13 . (canceled) 
     
     
         14 . An organ model being a laminated product,
 wherein the laminated product comprises a sheet of a material for molding an organ model and a resin sheet, and   wherein the material for molding the organ model comprises an aqueous crosslinked gel made of a polyvinyl alcohol.   
     
     
         15 . The organ model according to  claim 14 , wherein the resin sheet is a net-like resin sheet. 
     
     
         16 . The organ model according to  claim 15 , wherein the net-like resin sheet comprises polyester, polyurethane or nylon. 
     
     
         17 . The organ model according to  claim 14 , wherein the resin sheet is a polyvinyl alcohol film, a vinyl chloride resin sheet, a polyvinylidene chloride film, a resin sheet made of a polyolefin, a polyester film, a polyurethane film or a polyamide film. 
     
     
         18 . The organ model according to  claim 14 , wherein the sheet of the material for molding an organ model has a thickness of 0.5 to 30 mm. 
     
     
         19 . The organ model according to  claim 14 , wherein the organ model has a surface layer of a laminated sheet comprising a sheet made of the material for molding the organ model, and a sheet selected from a resin sheet and a nonwoven fabric wherein the material for molding the organ model comprises the aqueous crosslinked gel made of a polyvinyl alcohol. 
     
     
         20 . The organ model according to  claim 19 , wherein a net made of a resinor a nonwoven fabric is provided on the undersurface of the surface layer. 
     
     
         21 . The organ model according to  claim 20 , wherein the net is positioned at an approximately central position of the aqueous crosslinked gel made of a polyvinyl alcohol in the thickness of the gel. 
     
     
         22 . The organ model according to  claim 20 , wherein the nonwoven fabric is positioned at an approximately central position of the aqueous crosslinked gel made of a polyvinyl alcohol in the thickness of the gel. 
     
     
         23 . The organ model according to  claim 14 , wherein the organ model has a size and a shape corresponding to an organ of a human body. 
     
     
         24 . The organ model according to  claim 14 , wherein the organ is a brain, a heart, an esophagus, a stomach, a bladder, a small intestine, a colon, a liver, a kidney, a pancreas, a spleen or a uterus. 
     
     
         25 . The organ model according to  claim 14 , wherein the organ is a human skin. 
     
     
         26 . An organ model comprising a surface layer and a base material,
 wherein the surface layer is made of a material for molding an organ model and a resin sheet,   wherein the material for molding the organ model comprises an aqueous crosslinked gel made of a polyvinyl alcohol, and   wherein the base material has a shape corresponding to an organ of a human body.   
     
     
         27 . The organ model according to  claim 26 , wherein the surface layer comprises a sheet of the material for molding the organ model, and a sheet selected from a resin sheet and a nonwoven fabric, wherein the material for molding the organ model comprises an aqueous crosslinked gel made of a polyvinyl alcohol. 
     
     
         28 . The organ model according to  claim 27 , wherein a net made of a resin or a nonwoven fabric is provided on the undersurface of the surface layer. 
     
     
         29 . The organ model according to  claim 27 , wherein the net is positioned at an approximately central position of the aqueous crosslinked gel made of a polyvinyl alcohol in the thickness of the gel. 
     
     
         30 . The organ model according to  claim 27 , wherein the nonwoven fabric is positioned at an approximately central position of the aqueous crosslinked gel made of a polyvinyl alcohol in the thickness of the gel. 
     
     
         31 . The organ model according to  claim 26 , wherein the organ model has a size and a shape corresponding to an organ of a human body. 
     
     
         32 . The organ model according to  claim 26 , wherein the organ is a brain, a heart, an esophagus, a stomach, a bladder, a small intestine, a colon, a liver, a kidney, a pancreas, a spleen or a uterus. 
     
     
         33 . The organ model according to  claim 26 , wherein the organ is a human skin.