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    • 7. 发明申请
    • DEVICE AND METHOD FOR PERFORMING A FETAL PROCEDURE
    • 用于执行场景的装置和方法
    • US20100185209A1
    • 2010-07-22
    • US12358163
    • 2009-01-22
    • Martin Schafer
    • Martin Schafer
    • A61B17/46A61B17/42A61D1/08
    • A61D1/08
    • A device for performing fetotomy on a dead fetus or repositioning of a live fetus has a primary attachment in the form of a looped brace that is provided around a fetal limb within the birth canal of the mother animal and engages the armpit or groin of the fetus. An extension bar connects the brace to a tensioning device. A secondary attachment such as a cable or chain is attached at the foot of the fetal limb and connected to the tensioning device. The tensioning device is operated to provide tension between the brace and the secondary attachment, thereby placing the fetal limb in traction. Sufficient traction causes removal of the entire limb without exposing sharp bone edges. Variations of the device may be used for a fetal repositioning procedure.
    • 用于在死胎上进行胚胎切割术或重新定位活胎的装置具有环形支架的形式的主要附着物,其围绕母体动物的产道内的胎儿肢体提供并且与胎儿的腋窝或腹股沟接合 。 延伸杆将支架连接到张紧装置。 诸如电缆或链条的辅助附件附接在胎儿肢体的脚部并且连接到张紧装置。 操作张紧装置以在支架和辅助附件之间提供张力,从而将胎儿肢体放置在牵引中。 足够的牵引力会导致整个肢体的移除而不会暴露锋利的骨骼边缘。 设备的变化可用于胎儿重新定位过程。
    • 8. 发明授权
    • Process for the preparation of 1,4-butanediol monoethers
    • 1,4-丁二醇单醚的制备方法
    • US06103939A
    • 2000-08-15
    • US426957
    • 1999-10-26
    • Rolf FischerRolf PinkosMartin SchaferArthur HohnPeter Schwab
    • Rolf FischerRolf PinkosMartin SchaferArthur HohnPeter Schwab
    • C07C41/26C07C43/13C07C43/00C07C41/00
    • C07C41/26
    • A process for preparing tetrahydrofuran, which comprises reacting 1,4-butenediol diethers of the formulae I and/or IIRO--CH.sub.2 --CH.dbd.CH--CH.sub.2 --OR IRO--CH.sub.2 --CH.sub.2 .dbd.CH--CH.sub.2 --OR II,where the R radicals can be identical or different and are C.sub.1 -C.sub.15 -alkyl or cycloalkyl radicals, C.sub.6 -C.sub.12 -aryl radicals or C.sub.7 -C.sub.15 -aralkyl radicals, with water and hydrogen at from 20 to 300.degree. C. under from 1 to 300 bar in the presence of catalysts or catalyst combinations which comprise components which are both capable of hydrogenation and have acidic or basic centers and a novel process for preparing 1,4-butanediol diethers of the formula I by metathesis are described.The invention furthermore relates to the separate preparation of 1,4-butanediol monoethers of the formula IIIHO--CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --OR III,where R has the meanings indicated for formulae I and II, for which purpose 1,4-butanediol diethers of the formulae I and/or II are reacted as claimed in claim 1 with water and hydrogen in the presence of a hydrogenation catalyst at from 20 to 300.degree. C. under from 1 to 300 bar.
    • 一种制备四氢呋喃的方法,其包括使式I和/或IIRO-CH2-CH = CH-CH2-ORIRO-CH2-CH2 = CH-CH2-ORII的1,4-丁烯二醇二醚反应,其中R基团可以是 相同或不同的是C 1 -C 15 - 烷基或环烷基,C 6 -C 12 - 芳基或C 7 -C 15 - 芳烷基,其中水和氢在20-300℃下,在1至300巴下, 描述了包含能够氢化并具有酸性或碱性中心的组分的催化剂或催化剂组合,以及通过复分解制备式I的1,4-丁二醇二醚的新方法。 本发明还涉及分别制备式IIIHO-CH2-CH2-CH2-CH2-ORIII的1,4-丁二醇单醚,其中R具有式I和II所示的含义,为此目的1,4-丁二醇 式I和/或II的二醚在氢化催化剂存在下,在20-300℃,1〜300巴下,与水和氢反应,如权利要求1所述。