CYLINDRICAL STRUCTURE AND PRODUCTION METHOD THEREOF

WIPO Patent Application WO/2012/029887

A1

Disclosed a novel, effective, and easy production method, capable of producing a high-quality cylindrical structure, and, also disclosed is a high-quality and highly uniform cylindrical structure. Provided is a method for producing a cylindrical structure, comprising a step of inserting a mandrel into a molded body made of a gelatinous material, and a step of drying the molded body to shrink the molded body in the direction of the mandrel, to thereby obtain an intermediate structure, and further, a step of removing the mandrel from the intermediate structure. Provided is a cylindrical structure wherein a part of or the entirety of the structure comprises a tubular part containing a protein, and wherein, when the tubular part is cut at five points at 0.5 cm intervals at right angles to the longitudinal direction of the tubular part so that five cross-sections are obtained, and internal diameters are measured in four directions deviated at an angle of 45 degrees regarding each of the five cross-sections, the average value of the four internal diameters of each cross-section has a variation coefficient of 0.1 or less.

KAMEDA TSUNENORI (JP)
TERAMOTO HIDETOSHI (JP)
TAMADA YASUSHI (JP)

PCT/JP2011/069850

March 08, 2012

August 31, 2011

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NAT INST OF AGROBIO SCIENCES (JP)
KAMEDA TSUNENORI (JP)
TERAMOTO HIDETOSHI (JP)
TAMADA YASUSHI (JP)

B29D23/00; A61L27/00

JPH04227264A	1992-08-17
JPH06508051A	1994-09-14
JPH09509085A	1997-09-16
JPH06166850A	1994-06-14

SK INTELLECTUAL PROPERTY LAW FIRM et al. (JP)
SK patent business corporation (JP)

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