公开(公告)号：EP1034806A3

公开(公告)日：2000-11-22

申请号：EP00104695.2

申请日：2000-03-03

申请人： Stryker Technologies Corporation

发明人： Tunc, Deger C.

IPC分类号： A61L31/06

CPC分类号： A61B17/80 ,  A61L31/06 ,  Y10S606/91 ,  C08L67/04

摘要： A bioabsorbable material such as a terpolymer of poly-(L-lactide/D-lactide/glycolide). The material may consist of 85 molar percent L-lactide, 5 molar percent D-lactide, and 10 molar percent glycolide. The material may have a heat of fusion of about 15-25 J/G, tensile strength retention at 26 weeks of incubation of at least about 50%, and tensile strength retention at 52 weeks of incubation of at most about 25%. The material may be used in implantable devices such as bone fixation devices.

公开(公告)号：EP1017485A1

公开(公告)日：2000-07-12

申请号：EP98937247.9

申请日：1998-07-24

申请人： Stryker Technologies Corporation

发明人： HAJIANPOUR, Mohammed, Ali

IPC分类号： B01F13/06

CPC分类号： B01F7/00141 ,  A61B17/8822 ,  A61B17/8827 ,  A61B2017/8838 ,  A61F2002/30561 ,  A61F2002/4685 ,  A61F2250/0071 ,  B01F7/00208 ,  B01F13/002 ,  B01F13/003 ,  B01F13/06 ,  B01F15/00435 ,  B01F15/0048 ,  B01F15/00506 ,  B01F15/00538 ,  B01F15/0205 ,  B01F15/0206 ,  B01F15/0234 ,  B01F15/0266 ,  B01F15/0278 ,  B01F2003/1257 ,  B01F2215/0029 ,  Y10S366/601

摘要： Apparatus for storing, mixing, and dispensing a two-component bone cement includes a first component supply section (10), a mixing section (12), and a drive base (14). One or more ampules (18) of the first (liquid) component (16), provided within the first component section (10), are broken or cut when a lever (36) is rotated. The second (powder) component (20) is provided within the mixing section (12). During the mixing process, a vacuum is applied within the mixing section (12), assisting in the delivery of the first component (16) through a filter (68) while preventing the passage of broken glass or plastic from the ampules (18). Mixing is done by a pair of paddles (98, 99) and a helical spring (106) rotating within the mixing section (12), being driven in one direction, or in alternating opposite directions of rotation, by the drive base. The resulting mixture (165) is dispensed by placing the mixing section (12), without the drive base (14) and the first component supply section (10), into a dispensing gun, which drives a shaft (182) moving a piston (102) within the mixing section (12) to dispense the mixture (165) through a dispensing tube (166) while collapsing the helical spring (106). A plug (204) within the piston (102) is pushed through the dispensing tube (166) to clear the mixture (165) remaining therein. In an alternative arrangement, mixing occurs under vacuum conditions in a bowl (392) having an internal surface (397) similarly scraped with a flexible wire (410).