-
公开(公告)号：US5615684A
公开(公告)日：1997-04-01
申请号：US429614
申请日：1995-04-27
申请人： Pia Hagel , Kjell Noren , Kurt Hoegnelid
发明人： Pia Hagel , Kjell Noren , Kurt Hoegnelid
CPC分类号： A61N1/36564 , A61N1/3621 , A61N1/3956
摘要： A device for detecting hemodynamic conditions in a heart, in particular conditions corresponding to dangerous arrhythmias contains a sensing unit for a physiological variable, such as blood pressure, the unit emitting a signal on the basis of the variable having an average value, a signal conditioning unit connected to the sensing unit, a calculation unit connected to the signal conditioning unit and a comparator after the calculation unit. The calculation unit is devised to calculate a variability measure relative to the signal's average value, the variability measure being correlated to average blood pressure, and the variability measure is compared in the comparator to an adjustable threshold value corresponding to a specific hemodynamic condition, whereupon the comparator emits an indication signal when the variability measure falls below the threshold value.
摘要翻译： 用于检测心脏中的血液动力学状况的装置，特别是与危险性心律失常相对应的条件包括用于生理变量例如血压的感测单元，该单元基于具有平均值的变量发出信号，信号调理 连接到感测单元的单元，连接到信号调节单元的计算单元和计算单元之后的比较器。 计算单元被设计为计算相对于信号平均值的可变性度量，可变性度量与平均血压相关，并且可变性度量在比较器中被比较到对应于特定血液动力学条件的可调阈值， 当可变性测量值低于阈值时，比较器发出指示信号。
-
公开(公告)号：US5417715A
公开(公告)日：1995-05-23
申请号：US132815
申请日：1993-10-07
申请人： Kjell Noren , Sven-Erik Hedberg , Pia Hagel , Kurt Hoegnelid
发明人： Kjell Noren , Sven-Erik Hedberg , Pia Hagel , Kurt Hoegnelid
CPC分类号： A61N1/368 , A61N1/36521
摘要： A rate-responsive heart stimulator with a variable stimulation interval contains a measurement device which generates a measurement signal corresponding to the volume of blood in a heart during the blood-filling phase (diastole) and a comparator which compares the measurement signal with a defined threshold value corresponding to a defined degree of blood filling. The comparator generates a control signal when the measurement signal reaches the threshold value, the control signal representing the time elapsing since the last stimulation pulse, and controlling the heart stimulator's stimulation interval.
摘要翻译： 具有可变刺激间隔的速率响应心脏刺激器包含测量装置，该测量装置在血液灌注阶段（舒张期）期间产生对应于心脏中的血液体积的测量信号，以及将测量信号与限定阈值进行比较的比较器 值对应于确定的血液灌注程度。 当测量信号达到阈值时，比较器产生控制信号，控制信号表示自上次刺激脉冲以来经过的时间，并且控制心脏刺激器的刺激间隔。
-
3.发明授权Implantable medical device having means for stimulating tissue contractions with adjustable stimulation intensity and a method for the operation of such a device 失效具有用于以可调节的刺激强度刺激组织收缩的装置的植入式医疗装置和用于操作这种装置的方法
公开(公告)号：US5405365A
公开(公告)日：1995-04-11
申请号：US186250
申请日：1994-01-24
申请人： Kurt Hoegnelid , Kjell Noren , Liliane Wecke , Jan Ljungstroem
发明人： Kurt Hoegnelid , Kjell Noren , Liliane Wecke , Jan Ljungstroem
CPC分类号： A61N1/3712 , A61N1/3706
摘要： Implantable medical device comprising a device for stimulating tissue contractions with adjustable stimulation intensity, whereby the stimulation intensity is set such that a stimulated event is detected after stimulation with a detector device. The detector device detects stimulated tissue contractions in a signal corresponding to the chronological curve of the electrical impedance of the tissue to be stimulated.
摘要翻译： 可植入医疗装置包括用于以可调节的刺激强度刺激组织收缩的装置，由此设定刺激强度，使得在用检测器装置刺激之后检测到刺激事件。 检测器装置检测对应于待刺激组织的电阻抗的时间曲线的信号中的刺激组织收缩。
-
公开(公告)号：US5427112A
公开(公告)日：1995-06-27
申请号：US51250
申请日：1993-04-23
申请人： Kjell Noren , Kurt Hoegnelid
发明人： Kjell Noren , Kurt Hoegnelid
IPC分类号： A61B5/0452 , A61N1/365 , A61B5/00
CPC分类号： A61N1/36585 , A61N1/36507
摘要： A device for analyzing the function of a heart, containing a measurement unit for generating a first measurement signal related to a first electrical or mechanical heart variable and an evaluation unit for evaluating the measurement signal, further contains a circuitry for generating a parameter signal related to a heart variable, the evaluation unit analyzing the related values for the measurement signal and the parameter signal. The device can be used for detecting a number of functional aberrations, such as bradycardia, tachyarrhythmia, retrograde conduction, ischemia and ectopia, and for controlling pacemakers and defibrillators.
摘要翻译： 一种用于分析心脏功能的装置，包括用于产生与第一电气或机械心脏变量相关的第一测量信号的测量单元和用于评估测量信号的评估单元，还包括用于产生与 心脏变量，评估单元分析测量信号和参数信号的相关值。 该装置可用于检测许多功能异常，例如心动过缓，快速性心律失常，逆行传导，缺血和异位，以及用于控制起搏器和除颤器。
-
5.发明授权
公开(公告)号：US5385576A
公开(公告)日：1995-01-31
申请号：US101727
申请日：1993-08-04
申请人： Kjell Noren , Pia Hagel , Kurt Hoegnelid
发明人： Kjell Noren , Pia Hagel , Kurt Hoegnelid
CPC分类号： A61N1/36521 , A61B5/0535 , A61N1/3962 , A61N1/395
摘要： In a method and apparatus for detecting ventricular fibrillation, a measured impedance signal, dependent on the blood volume in the heart, is evaluated, and ventricular fibrillation is assumed to be present if the level of the measured impedance signal falls below a predetermined threshold. This is based on the perception that as the heart fills with blood, given the presence of ventricular fibrillation, the level of the measured impedance signal will decrease. The apparatus also includes circuitry for treating the detected ventricular fibrillation.
摘要翻译： 在用于检测心室颤动的方法和装置中，评估取决于心脏中的血液体积的测量阻抗信号，并且如果测得的阻抗信号的电平低于预定阈值，则认为存在心室颤动。 这是基于以下认识：当心脏充满血液时，鉴于心室颤动的存在，测得的阻抗信号的水平将降低。 该装置还包括用于治疗所检测的心室颤动的电路。
-
公开(公告)号：US5522855A
公开(公告)日：1996-06-04
申请号：US294334
申请日：1994-08-23
申请人： Kurt Hoegnelid
发明人： Kurt Hoegnelid
IPC分类号： A61N1/368
CPC分类号： A61N1/368
摘要： An implantable cardiac stimulator has an atrial electrode for placement in the atrium of a heart and a ventricular electrode for placement in the ventricle of the heart. In order to sense stimulated events in the heart, a detector is connected to both of the electrodes to measure electrical heart signals between them.
摘要翻译： 可植入式心脏刺激器具有心房电极，用于放置在心脏的心房和心室电极中以放置在心脏的心室中。 为了感测心脏中的受激事件，检测器连接到两个电极以测量它们之间的电心电信号。
-
公开(公告)号：US5480420A
公开(公告)日：1996-01-02
申请号：US299345
申请日：1994-09-01
申请人： Kurt Hoegnelid , Hans Thornander , Martin Obel
发明人： Kurt Hoegnelid , Hans Thornander , Martin Obel
CPC分类号： A61N1/056
摘要： A temporarily implantable electrode device, intended for sensing electrical signals from living tissue, has an insulating sheath of resorbable material, and at least one non-toxic, liquid conductor contained inside the insulating sheath in order to form an electrical conductor which, via an electrode adapted for interaction with living tissue can sense and carry electrical signals from living tissue to a medical apparatus connected to the electrode device. The resorbable material ultimately dissolves completely into the body of the subject in whom the electrode device was temporarily implanted, and the non-toxic, liquid conductor simultaneously mixes with other fluids, making explantation of the electrode device unnecessary.
摘要翻译： 用于感测来自活体组织的电信号的临时可植入电极装置具有可再吸收材料的绝缘护套，以及包含在绝缘护套内部的至少一种无毒液体导体，以便形成电导体，其经由电极 适于与生物体组织的相互作用可以感测并携带从生物组织到连接到电极装置的医疗装置的电信号。 可再吸收材料最终完全溶解到临时注入电极装置的被检体的体内，并且无毒的液体导体与其它流体同时混合，不需要电极装置的外植。
-
公开(公告)号：US5358512A
公开(公告)日：1994-10-25
申请号：US107059
申请日：1993-08-17
IPC分类号： A61N1/39
CPC分类号： A61N1/3931 , A61N1/3912
摘要： Defibrillation of a heart ensues using a charging capacitor connected via a controllable switch arrangement to electrodes arranged in the region of the heart, the switch arrangement being operated to discharge across the heart tissue. In order to limit the initial current to a value not significantly exceeding the minimum value necessary to effect defibrillation, the controllable switch arrangement includes two contacts between which a contact maker, for example a mercury drop, is disposed, which is deformable under the influence of an electro-mechanical transducer. The transducer is arranged such that the contact maker connects the two contacts to one another given a prescribed excursion of the electro-mechanical transducer and, given a change of the excursion departing from the prescribed excursion, varies the electrical resistance between the contacts. The drive of the controllable switch arrangement ensues with turn-on pulses having a pulse height that is variable for setting the desired electrical resistance between the contacts.
摘要翻译： 心脏的除颤使用通过可控开关装置连接的充电电容器与布置在心脏区域中的电极连接，开关装置被操作以跨越心脏组织排出。 为了将初始电流限制在不显着超过实现除颤所需的最小值的值，可控开关装置包括两个触点，在该触点之间设置接触器，例如汞滴，其可在 机电换能器。 传感器被布置成使得接触器在给定机电换能器的规定偏移的情况下将两个触点彼此连接，并且在偏离规定的偏移的偏移的变化下，改变触点之间的电阻。 可控开关布置的驱动随着具有可变的脉冲高度的导通脉冲而发生，用于设置触点之间的期望的电阻。
-
公开(公告)号：US5183056A
公开(公告)日：1993-02-02
申请号：US599412
申请日：1990-10-18
CPC分类号： A61B5/1118 , A61B5/1126 , G01P13/00
摘要： An inductive motion sensor (MS) connectable to a subject (16), the motion sensor having a coil (4) and a magnet member (3) movable relative to the coil (4). The magnet member (3) has at least four magnetic poles, whereby the number of south poles (S) is equal to the number of north poles (N). The pole strength of the magnetic poles is dimensioned and the magnetic poles are located on the magnet member (3) such that the magnet member (3) is situated in a neutral equilibrium position in a uniform magnetic field with respect to the forces exerted on the magnetic poles by the magnetic field.
摘要翻译： 可连接到被摄体（16）的感应运动传感器（MS），所述运动传感器具有线圈（4）和相对于线圈（4）可移动的磁体构件（3）。 磁体构件（3）具有至少四个磁极，由此南极（S）的数量等于北极数（N）。 磁极的磁极强度的尺寸确定，并且磁极位于磁体构件（3）上，使得磁体构件（3）相对于施加在磁体上的力位于均匀磁场中的中性平衡位置 磁极通过磁场。
-
公开(公告)号：US5571143A
公开(公告)日：1996-11-05
申请号：US467267
申请日：1995-06-06
申请人： Kurt Hoegnelid , Hans Strandberg
发明人： Kurt Hoegnelid , Hans Strandberg
CPC分类号： A61N1/368
摘要： A heart stimulator having a pulse generator and an electrode system, which contain at least one bipolar electrode with one pole arranged in the atrium and another pole in the ventricle, or at least two unipolar electrodes respectively arranged in the atrium and ventricle, for detecting atrial and ventricular activity includes an atrial measurement unit which is connected for measuring a signal between the two poles of the bipolar electrode, or between the two unipolar electrodes, and a ventricular measurement unit arranged to measure the signals between the ventricular pole (or electrode) and the housing of the stimulator.
摘要翻译： 具有脉冲发生器和电极系统的心脏刺激器，其包含至少一个双极电极，其中一个极设置在心房中，另一极位于心室中，或至少两个单极电极分别布置在心房和心室中，用于检测心房 并且心室活动包括被连接用于测量双极电极的两极之间或两个单极电极之间的信号的心房测量单元，和设置成测量心室极（或电极）和 刺激器的住房。
-
-
-
-
-
-
-
-
-
搜索结果
25 条记录 (耗时 0.013 秒)
