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    • 3. 发明申请
    • Infusion device and driving mechanism for same
    • 输液器和驱动机构相同
    • US20040225281A1
    • 2004-11-11
    • US10867785
    • 2004-06-15
    • MEDTRONIC MINIMED, INC.
    • Eric LorenzenJohn GrayRobert Bosley
    • A61K009/22
    • A61M5/14216A61M5/14276A61M5/16877A61M2205/8212
    • A drive mechanism for delivery of infusion medium a coil capable of being electrically activated to provide an electromagnetic field. The coil surrounds a piston channel extending in an axial direction. The piston channel provides a passage for communication of infusion medium to an outlet chamber located at one end of the piston channel. An armature is located adjacent the coil, on one side of the axial channel. The armature is moveable toward a forward position, in response to the electromagnetic field produced by activation of the coil. A piston is located within the piston channel and is moveable axially within the channel to a forward position, in response to movement of the armature to its forward position. The armature and piston are moved toward a retracted position, when the coil is not energized. In the retracted position of the piston, a piston chamber is formed between the piston and a valve member and is filled with infusion medium. As the piston is moved to its forward position, the piston chamber volume is reduced and pressure within the piston chamber increases to a point where the pressure moves the valve member into an open position. When the valve member is in the open position, medium from the piston chamber is discharged into an outlet chamber located on the opposite side of the coil relative to the armature. An outlet is provided in flow communication with the outlet chamber, for discharging infusion medium from the outlet chamber.
    • 一种驱动机构,用于输送能够被电活动以提供电磁场的线圈的输注介质。 线圈围绕沿轴向延伸的活塞通道。 活塞通道提供用于将输注介质连通到位于活塞通道一端的出口腔的通道。 电枢位于线圈附近,位于轴向通道的一侧。 响应于由线圈的激活产生的电磁场,衔铁可朝着前进位置移动。 活塞位于活塞通道内并且响应于电枢到其向前位置的移动而在通道内轴向移动到向前位置。 当线圈未通电时,电枢和活塞向收回位置移动。 在活塞的缩回位置,活塞室形成在活塞和阀构件之间,并且填充有输注介质。 当活塞移动到其前进位置时,活塞室体积减小,并且活塞室内的压力增加到压力将阀构件移动到打开位置的点。 当阀构件处于打开位置时,来自活塞室的介质相对于电枢被排放到位于线圈相反侧的出口腔室中。 提供与出口室流体连通的出口,用于从输出室排出输注介质。
    • 4. 发明申请
    • Modified release formulations of at least one form of tramadol
    • 至少一种曲马多的缓释制剂
    • US20040224949A1
    • 2004-11-11
    • US10434266
    • 2003-05-09
    • Seth PawanPaul Maes
    • A61K031/535A61K009/20A61K009/22
    • A61K9/2866A61K9/284A61K31/137
    • The present invention provides for a modified release pharmaceutical composition comprising at least one form of tramadol selected from the group consisting of tramadol, enantiomers thereof, pharmaceutically acceptable salts thereof and combinations thereof, the composition exhibiting an in vitro dissolution profile (measured using the USP Basket Method at 75 rpm in 900 ml 0.1 N HCl at 37null C.) such that after 2 hours, from about 0% up to about 30% (by weight) of the at least one form of tramadol is released, after 4 hours, from about 5% to about 22% (by weight) of the at least one form of tramadol is released, after 6 hours, from about 15% to about 38% (by weight) of the at least one form of tramadol is released, after 8 hours, more than about 40% (by weight) of the at least one form of tramadol is released.
    • 本发明提供一种包含至少一种形式的曲马多的改性释放药物组合物,其选自曲马多,其对映异构体,其药学上可接受的盐及其组合,所述组合物显示体外溶出曲线(使用USP Basket 方法在75rpm,在900ml 0.1N HCl中于37℃下进行),使得在2小时后,释放至少一种形式的曲马多的约0%至约30%(重量),4小时后, 释放约5%至约22%(重量)的该曲马多的至少一种形式的曲马朵,6小时后,至少一种曲马多的约15%至约38%(重量)被释放, 8小时后,释放至少一种形式的曲马多的大于约40%(重量)。