Filters (10) comprising water-soluble polyvinyl alcohol material are disclosed, as well as methods and making and using filters. The filters (10) can include a roving/yarn filtering material (11) wrapped around a supportin g core (12). Both the filtering material (11) and the core (12) can be made of the water-soluble PVA.
申请公布号
CA2507041(A1)
申请公布日期
2004.07.15
申请号
CA20032507041
申请日期
2003.12.24
申请人
MICROTEK MEDICAL HOLDINGS, INC.
发明人
LEE, BAOSHENG;STEWARD, JOHN B.;JOHNSTON, JORDAN M.;DING, YOUZHEN
