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    • 3. 发明授权
    • Apparatus for simultaneous aspiration and dispensation of fluids
    • 用于同时抽吸和分配流体的装置
    • US5817955A
    • 1998-10-06
    • US828969
    • 1997-03-27
    • Paul GhersonCarl Gebauer
    • Paul GhersonCarl Gebauer
    • G01N1/00B01L3/02F04B5/00F04B53/02G01F11/02G01N35/10F04B39/10
    • B01L3/02F04B5/00F04B53/02G01F11/021G01N35/10B01L2400/0478
    • The apparatus for simultaneous aspiration and dispensation of fluids is in the form of a syringe with two chambers located end to end along the length of the syringe. Each syringe chamber includes a port. A piston inside the syringe includes a median section that is movable in both of the syringe chambers, a first end section movable only in one of the syringe chambers, and a second end section movable only in the other syringe chamber. Both end sections of the piston are of either less diameter than the median section of the piston or of greater diameter than the median section of the piston. When the piston is moved in a first direction, an aspiration or suction force is developed at one of the chamber ports and a dispensation pressure force is developed at the other chamber port. Reverse movement of the piston causes the opposite effect at the respective chamber ports. A compression seal is provided at the median section of the piston and at opposite non-adjacent end portions of the syringe chambers. The syringe housing can be formed in two separable sections to permit access to the compression seal at the median portion of the piston. Tandem compression seals can also be provided at the median section of the piston.
    • 用于同时抽吸和分配流体的装置是注射器的形式,其中两个腔室沿着注射器的长度位于一端。 每个注射器室包括一个端口。 注射器内的活塞包括可在两个注射器室中移动的中间部分,仅可在一个注射器室中移动的第一端部部分和仅可在另一注射器腔室中移动的第二端部部分。 活塞的两个端部的直径都小于活塞的中间部分,或者比活塞的中间部分更大的直径。 当活塞沿第一方向移动时,抽吸或抽吸力在腔室的一个端口处形成并且分配压力在另一腔室端口处形成。 活塞的反向运动在相应的腔室端口产生相反的作用。 压缩密封件设置在活塞的中间部分和注射器室的相对的非相邻端部处。 注射器壳体可以形成在两个可分离部分中,以允许进入活塞中间部分处的压缩密封件。 串联压缩密封件也可以在活塞的中间部分提供。
    • 7. 发明授权
    • Blood clot detector
    • 血块检测器
    • US6022747A
    • 2000-02-08
    • US113647
    • 1998-07-10
    • Paul GhersonRobert William EhertsTheodore Pernicano
    • Paul GhersonRobert William EhertsTheodore Pernicano
    • G01N1/00G01N33/49G01N35/10G01N27/416
    • G01N33/4905G01N2035/1018
    • A blood clot detector includes a pressure transducer on an aspiration line to provide output voltage data to a microprocessor corresponding to the vacuum level during aspiration. The microprocessor integrates the vacuum readings over time during the aspiration cycle to provide a pressure integral for each test sample aspiration. A pressure integral is determined for an unclotted aspiration and used as a reference for comparison with the pressure integrals of each test sample aspiration to determine whether a blood clot has interfered with the test sample aspiration. A valve is provided across an analytical line and an aspiration line to provide selective communication between the aspiration line and the analytical line or to prevent such communication. Communication between the aspiration line and the analytical line permits transfer of a test sample from the aspiration line to the analytical line if the test sample is considered acceptable for sample analysis. Acceptability of the test sample for analysis is based upon a predetermined difference between the reference pressure integral and each test sample pressure integral.
    • 血液凝块检测器包括在抽吸线上的压力传感器,以在抽吸期间向微处理器提供对应于真空水平的输出电压数据。 微处理器在抽吸循环期间随着时间的推移整合真空读数,为每个测试样品抽吸提供压力积分。 确定未切开抽吸的压力积分,并用作与每个测试样品抽吸的压力积分进行比较的参考,以确定血块是否干扰了测试样品抽吸。 在分析管线和抽吸管线之间提供阀,以在抽吸管线和分析管线之间提供选择性连通,或者防止这种连通。 如果测试样品被认为可接受用于样品分析,则抽吸管线和分析管线之间的通信可将测试样品从抽吸管线转移到分析管线。 用于分析的测试样品的可接受性基于参考压力积分和每个测试样品压力积分之间的预定差异。
    • 8. 发明授权
    • Sample dilution module with offset mixing chamber
    • 带偏置混合室的样品稀释模块
    • US06426048B1
    • 2002-07-30
    • US09548152
    • 2000-04-13
    • Robert W. EhertsPaul GhersonCarl R. GebauerEvandro S. Denunzio
    • Robert W. EhertsPaul GhersonCarl R. GebauerEvandro S. Denunzio
    • B01L302
    • B01F11/0071B01F11/0074G01N1/38G01N35/08Y10T436/117497Y10T436/118339Y10T436/25Y10T436/25625Y10T436/2575
    • The sample dilution module includes an oil filled aspiration probe and mixing chamber that communicate with each other while the mixing chamber is maintained at an angle of approximately 5 to 45 degrees below a horizontal axis. The aspiration probe is maintained in a vertical orientation. A micro-bubble is aspirated between separate aspirations of test sample and diluent to prevent contact between the sample and diluent in the aspiration probe. The test sample and diluent are then drawn from the vertically oriented aspiration probe into the mixing chamber. After the sample and diluent are in the mixing chamber the micro-bubble of air can migrate away from the test sample and diluent to enable the test sample and diluent to contact each other. Mixing of the test sample and diluent is accomplished by moving the test sample and diluent back and forth in the mixing chamber without physical agitation of the mixing chamber and without any mixing element in the mixing chamber. Such movement is accomplished by alternate suction and vacuum forces imposed on the fluid in the mixing chamber.
    • 样品稀释模块包括充油抽吸探针和混合室,其在混合室保持在水平轴线以下约5至45度的角度的情况下相互连通。 吸气探针保持垂直方向。 在测试样品和稀释剂的单独吸气之间吸入微气泡,以防止抽吸探针中样品和稀释剂之间的接触。 然后将测试样品和稀释剂从垂直取向的吸入探针中抽出到混合室中。 在样品和稀释剂在混合室中之后,空气的微气泡可以离开测试样品和稀释剂迁移,以使测试样品和稀释剂彼此接触。 测试样品和稀释剂的混合是通过在混合室中来回移动测试样品和稀释剂而没有混合室的物理搅拌并且在混合室中没有任何混合元件来实现的。 这种移动通过施加在混合室中的流体上的交替抽吸和真空力来实现。
    • 10. 发明授权
    • Sampling system with selectable pumps to communicate with reading station
    • 采样系统,带可选择的泵与阅读台进行通讯
    • US6119533A
    • 2000-09-19
    • US346404
    • 1999-07-01
    • Paul GhersonRobert William EhertsTheodore Pernicano
    • Paul GhersonRobert William EhertsTheodore Pernicano
    • G01N1/00G01N33/49G01N35/10
    • G01N33/4905G01N2035/1018
    • A blood clot detector includes a pressure transducer on an aspiration line to provide output voltage data to a microprocessor corresponding to the vacuum level during aspiration. The microprocessor integrates the vacuum readings over time during the aspiration cycle to provide a pressure integral for each test sample aspiration. A pressure integral is determined for an unclotted aspiration and used as a reference for comparison with the pressure integrals of each test sample aspiration to determine whether a blood clot has interfered with the test sample aspiration. A valve is provided across an analytical line and an aspiration line to provide selective communication between the aspiration line and the analytical line or to prevent such communication. Communication between the aspiration line and the analytical line permits transfer of a test sample from the aspiration line to the analytical line if the test sample is considered acceptable for sample analysis. Acceptability of the test sample for analysis is based upon a predetermined difference between the reference pressure integral and each test sample pressure integral.
    • 血液凝块检测器包括在抽吸线上的压力传感器,以在抽吸期间向微处理器提供对应于真空水平的输出电压数据。 微处理器在抽吸循环期间随着时间的推移整合真空读数,为每个测试样品抽吸提供压力积分。 确定未切开抽吸的压力积分,并用作与每个测试样品抽吸的压力积分进行比较的参考,以确定血块是否干扰了测试样品抽吸。 在分析管线和抽吸管线之间提供阀,以在抽吸管线和分析管线之间提供选择性连通,或者防止这种连通。 如果测试样品被认为可接受用于样品分析,则抽吸管线和分析管线之间的通信可将测试样品从抽吸管线转移到分析管线。 用于分析的测试样品的可接受性基于参考压力积分和每个测试样品压力积分之间的预定差异。