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    • 1. 发明授权
    • Multimodal displacement pump and dissolution system for same
    • 多模式位移泵和溶解系统相同
    • US5098377A
    • 1992-03-24
    • US559124
    • 1990-07-26
    • Alexander BorsanyiRichard HarpRobert LeboScott L. PoolJoseph RondinoneJohn T. SorensenRoxanne WallAlbert L. Stone
    • Alexander BorsanyiRichard HarpRobert LeboScott L. PoolJoseph RondinoneJohn T. SorensenRoxanne WallAlbert L. Stone
    • A61M1/00
    • A61M1/0062A61M1/0072
    • Disclosed is a pneumatically-driven volume controlled bellows pump apparatus for oscillating liquid into a localized area of the human body, preferably methyl-tertiary butyl ether or another solvent, into the gallbladder. The pump includes a fluid reservoir in the form of an inverted syringe attached via a stopcock to the bellows. The bellows is attached via a second stopcock to a catheter also attached to a priming syringe. An inlet pinch valve is disposed between the bellows and the fluid reservoir and an outlet pinch valve between the bellows and the fluid receiver.To use the pump, a pigtail catheter with outlets in the pigtail is inserted into the desired area of the body, preferably a receptacle such as the gallbladder, to introduce a selected volume of liquid for gallstone dissolution. Liquid is infused into the receptacle by decompression of the bellows with the inlet but not the outlet valve open and then by compression of the bellows with the outlet but not the inlet valve open. Repeated infusion and aspiration is automatically accomplished by decompression and compression of the bellows with the inlet valve closed and the outlet valve open, or by compression and decompression of the bellows while the inlet valve is open and the outlet valve is closed alternated with compression and decompression while the inlet valve is closed and the outlet valve is open. Complete aspiration is accomplished by the use of a vacuum pump attached to the fluid reservoir. Also disclosed are syringe units and a transfer cap for use with the pump, together with a method for dissolving gallstones.
    • 公开了一种气动驱动的体积控制的波纹管泵装置,用于将液体振荡到人体的局部区域,优选甲基叔丁基醚或另一种溶剂进入胆囊。 该泵包括呈倒置的注射器形式的流体储存器,其通过旋塞连接到波纹管。 波纹管通过第二个旋塞连接到也连接到灌注注射器的导管上。 入口夹管阀设置在波纹管和流体储存器之间,以及在波纹管和流体接收器之间的出口压紧阀。 为了使用该泵,将在尾纤中具有出口的猪尾导管插入身体的所需区域,优选地插入诸如胆囊的容器中,以引入选定体积的用于胆结石溶解的液体。 通过用入口减压波纹管而不是出口阀打开,然后通过带有出口的波纹管压缩而不是入口阀打开,将液体注入到容器中。 重复输注和抽吸通过减压和压缩波纹管自动完成,入口阀关闭,出口阀打开,或通过压缩和减压波纹管,同时入口阀打开,出口阀关闭,与压缩和减压交替 而入口阀关闭,出口阀打开。 完全抽吸是通过使用连接到流体储存器的真空泵来实现的。 还公开了用于泵的注射器单元和转移盖,以及用于溶解胆结石的方法。
    • 4. 发明授权
    • Ophthalmic lens removal method and apparatus
    • 眼科镜片去除方法及装置
    • US5437678A
    • 1995-08-01
    • US984229
    • 1992-11-30
    • John T. Sorensen
    • John T. Sorensen
    • A61B17/00A61F9/00A61F9/007A61F9/013
    • A61F9/00763A61B2017/00685
    • Apparatus for reducing the size of an object disposed in a generally closed fluid medium includes a handpiece having an axis extending from a housing at a proximal end to a probe at an opposing distal end. A reducer at the distal end of the probe is adapted for insertion into the fluid medium where it is rotatable to reduce in size the object. The reducer is configured to create a fluid flow in the fluid medium so that the handpiece can be maintained laterally and axially stationary while the object is moved by the fluid flow into contact with the reducer. An associated method includes the steps of rotating the rotary member at a speed sufficient to reduce the size of the object, and in a manner to produce a flow of the fluid sufficient to move the object into the rotary member.
    • 用于减小设置在通常封闭的流体介质中的物体的尺寸的装置包括具有从近端处的壳体延伸到在相对的远端处的探针的轴的手持件。 在探头的远端处的减速器适于插入流体介质中,其中其可旋转以减小物体的尺寸。 减速器构造成在流体介质中产生流体流动,使得当物体被流体流移动以与减速器接触时,手持件可以被侧向和轴向地保持固定。 相关联的方法包括以足以减小物体的尺寸的速度旋转旋转构件的步骤,以及产生足以将物体移动到旋转构件中的流体流的方式。
    • 5. 发明授权
    • Method of dissolving cholesterol-rich calculi with short chain
halogenated organic solvents and cosolvents
    • 用短链卤代有机溶剂和共溶剂溶解富含胆固醇的结石的方法
    • US4994025A
    • 1991-02-19
    • US400212
    • 1989-08-29
    • Paul DeAntonioKenneth G. MayhanJohn T. Sorensen
    • Paul DeAntonioKenneth G. MayhanJohn T. Sorensen
    • A61B17/22A61K31/02A61P1/16
    • A61K31/02A61B2017/22084
    • Disclosed is a method for dissolving cholesterol-rich calculi, most preferably gallstones in vivo, comprising contacting the calculus with a fluid compound of the formula R-X, R having 2 to 4 carbon atoms with substituents consisting of hydrogen of halogen, X being halogen, and wherein if X is fluorine, at least one substituent is selected from the group consisting of hydrogen, chlorine, bromine, or iodine. Usually R-X is 2-bromo-2-chloro-1,1,1-trifluoroethane (also referred to as Halothane.) Other compounds of particular interest are 2-chloro-1,2,-dibromo-1,1,2-trifluoroethane, 1-bromo-2-chloro-1,1,2-trifluoroethane, 2,3-dibromo-1,1,1-trifluoropropane, 2-iodo-1,1,1-trifluoroethane, 1,2-dichloro-1,1-difluoroethane, 1,1,2-trichloro-2,3,3-trifluorocyclobutane, hexafluoro-1,1,3,4,-tetrachlorobutane, 1,1,1-trichlorotrifluoroethane, and 1,2-dibromo-tetrafluoroethane. Furthermore, Halothane and MtBE in combination effectively dissolve cholesterol-rich calculi.Finally, dissolution can be enhanced by adding to the dissolution solvent up to about 50 percent by volume of a lower alcohol. Usually the lower alcohol is ethanol in the amount of about 5 to 40, usually 10 to 30 and preferably about 10 percent by volume. Most preferably in this case, R-X is Halothane or 1,1,1-trichlorotrifluoroethane. Dissolution using previously known solvents such as MtBE is also enhanced by such addition of lower alcohols. In addition, the practical use of MtBE for dissolution can be improved by the addition of the compounds described above as R-X, particularly Halothane, and usually at levels of about 5 to 50 volume percent Halothane.
    • 公开了一种在体内溶解富胆固醇结石,最优选胆结石的方法,包括使结石与式RX的流体化合物,具有2至4个碳原子的R和R的卤素取代基组成的取代基,X是卤素,和 其中如果X是氟,则至少一个取代基选自氢,氯,溴或碘。 通常RX是2-溴-2-氯-1,1,1-三氟乙烷(也称为氟烷)。其它特别令人感兴趣的化合物是2-氯-1,2,2-二溴-1,1,2-三氟乙烷 ,1-溴-2-氯-1,1,2-三氟乙烷,2,3-二溴-1,1,1-三氟丙烷,2-碘-1,1,1-三氟乙烷,1,2-二氯-1 ,1,2-二氟乙烷,1,1,2-三氯-2,3,3-三氟环丁烷,六氟-1,1,3,4, - 四氯丁烷,1,1,1-三氯三氟乙烷和1,2-二溴 - 四氟乙烷 。 此外,氟烷和MtBE组合有效地溶解富含胆固醇的结石。 最后,通过向溶解溶剂中加入高达约50体积%的低级醇可以提高溶解度。 通常,低级醇是乙醇,其量为约5至40,通常为10至30,优选约10体积%。 最优选在这种情况下,R-X是氟烷或1,1,1-三氯三氟乙烷。 使用先前已知的溶剂如MtBE的溶解也通过这样加入低级醇来增强。 另外,通过加入上述作为R-X,特别是氟烷的化合物,可以提高MtBE用于溶解的实际用途,通常为约5〜50体积%的卤代烷的水平。
    • 7. 发明授权
    • Methods and apparatus for determining analytes in various matrices
    • 用于确定各种基质中分析物的方法和装置
    • US06852289B2
    • 2005-02-08
    • US09817446
    • 2001-03-26
    • Virginia C. GordonBennett W. Root, Jr.Barbara J. PeasleyJohn F. EliasJohn T. SorensenMichael MittelsteinSoheila Mirhashemi
    • Virginia C. GordonBennett W. Root, Jr.Barbara J. PeasleyJohn F. EliasJohn T. SorensenMichael MittelsteinSoheila Mirhashemi
    • B01L3/00G01N33/52G01N33/543B01L11/00B01D24/00C12M3/00
    • B01L3/5025B01L3/50255G01N33/52G01N33/54366Y10T436/173845Y10T436/18
    • Methods and apparatus for qualitatively or quantitatively determining one or more analytes in matrices such as foods, biological fluids, etc. An embodiment for determination of a single analyte comprises a sample receiving vessel, a first membrane and a reagent-containing well. The prepared sample passes through the first membrane whereby extraneous matter is removed, and a filtrate enters the reagent-containing well to provide a filtrate-reagent admixture from which the analyte may be determined. An embodiment for determination for multiple analytes includes one or more additional membranes in series with the first membrane, each such additional membrane being operative to capture one or more analytes. Each of the additional analytes may then be eluted from the membrane upon which it has been captured, into a separate reagent-containing well to provide eluant-reagent admixture from which each desired analyte may be determined. Formulations for preparation additives are also included. Additionally, there's provided an embodiment of above-described invention for determination of an analyte which is present in a matrix at low (e.g., sub-detectable) levels, wherein the filter of the apparatus is utilized to capture and concentrate the analyte, to provide a filtrate-reagent admixture wherein the analyte is present at detectable concentration.
    • 用于定性或定量测定诸如食品,生物流体等的基质中的一种或多种分析物的方法和装置。用于测定单个分析物的实施方案包括样品接收容器,第一膜和含有试剂的孔。 制备的样品通过第一膜,除去外来物质,并且滤液进入含试剂的孔中以提供可以从其中测定分析物的滤液 - 试剂混合物。 用于测定多个分析物的实施方案包括与第一膜串联的一个或多个另外的膜,每个这样的附加膜可操作以捕获一种或多种分析物。 然后可以将每种附加分析物从其已被捕获的膜上洗脱出来,以分离含有试剂的孔,以提供洗脱剂 - 试剂混合物,从中可以确定每种所需的分析物。 还包括制剂添加剂的配方。 此外,提供了上述发明的一个实施方案,用于测定在低(例如,亚可检测)水平下存在于基质中的分析物,其中该装置的过滤器用于捕获和浓缩分析物,以提供 滤液 - 试剂混合物,其中分析物以可检测的浓度存在。