METHOD FOR PRODUCING BIODEGRADABLE POLYMER NONWOVEN FABRIC TUBE

Japanese Patent JP2006299459

A

To provide a chitin derivative nonwoven fabric tube composed of a nanofiber, to provide a method for simply and efficiently producing the tube, and to provide a medical material containing the tube.

This method for producing the tube comprises injecting droplets of a chitin derivative solution into a space between a droplet supply part 3 and an electrode plate 5, finely dividing the droplets by electric charge repulsion and an electric field, and drawing the droplets. A fiber is formed on a surface of a rotational support body 6, by rotating the rotational support body 6 which is driven by a rotating motor 7, and simultaneously the tube is directly formed. The formed tube is subjected to insolubilization treatment by a procedure of, for example, immersing the tube in an aqueous alkali solution of a high concentration.

WO/1996/030060	MEDICAL DEVICE TREATED WITH A HYDROPHILIC POLYMER COMPOSITION
JP4237415	In vitro production of portable cartilage tissue
JP2000513615	[Title of Invention] Biologically active surface layer for bone graft

TANAKA JUNZO
KOBAYASHI HISATOSHI
MATSUDA ATSUSHI
OKUMA TSUNEO
ISHIKAWA KAZUHIRO
SAKAI KATSUYOSHI

JP2005122561A

November 02, 2006

April 20, 2005

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NAT INST FOR MATERIALS SCIENCE
UNIV HOKKAIDO
HOKKAIDO SODA CO LTD

A61L27/00; D01D5/04; D01F9/00; D04H1/728

JP2003521493A	2003-07-15
JP2004321484A	2004-11-18
JPS56106901A	1981-08-25
JPH03220305A	1991-09-27
JPH01181872A	1989-07-19
JPH07102458A	1995-04-18

Yusuke Hiraki
Ishii Teiji
Satoshi Fujita

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