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公开(公告)号：US4387714A
公开(公告)日：1983-06-14
申请号：US263212
申请日：1981-05-13
CPC分类号： A61B18/16 , A61N1/06 , A61B2018/167
摘要： An electrosurgical dispersive electrode is disclosed that is useful in conjunction with an electrosurgical unit to establish capacitive-coupling with the skin of a patient receiving therapeutic signals from the electrosurgical unit. The electrode includes a metallic plate electrically connectable with the electrosurgical unit to establish a return current path thereto, an insulator engaging the inner (patient) side of the metallic plate to prevent ohmic contact by the plate with the skin of the patient, and a conductive adhesive gel at the outer (patient) side of the insulator so as to be positioned between the insulator and the skin of a patient to bring the skin uniformly in contact with the gel conductor and thereby reduce the impedance, normally associated with capacitively-coupled dispersive electrodes, while retaining uniform temperature distribution.
摘要翻译： 公开了一种电外科分散电极，其与电外科单元结合使用以与接受来自电外科单元的治疗信号的患者的皮肤建立电容耦合。 电极包括可与电外科单元电连接以建立返回电流通路的金属板，与金属板的内部（患者）侧接合的绝缘体，以防止板与患者皮肤的欧姆接触，以及导电 在绝缘体的外侧（患者）侧具有粘合剂凝胶，以便将其定位在患者的绝缘体和皮肤之间，以使皮肤均匀地与凝胶导体接触，从而降低通常与电容耦合色散相关的阻抗 电极，同时保持均匀的温度分布。
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公开(公告)号：US11478646B2
公开(公告)日：2022-10-25
申请号：US16316548
申请日：2017-07-12
申请人： Jonathan W. Valvano , John A. Pearce , Marc D. Feldman , Kaarthik Rajendran , John Porterfield , Anil Kottam , Wes Johnson
发明人： Jonathan W. Valvano , John A. Pearce , Marc D. Feldman , Kaarthik Rajendran , John Porterfield , Anil Kottam , Wes Johnson
IPC分类号： A61N1/36 , A61N1/365 , G16H40/63 , A61B5/0205 , A61B5/0538 , A61B5/00 , A61N1/05 , A61N1/362 , A61B5/029 , A61B5/08
摘要： An apparatus for monitoring a patient post operation having electrically conducting leads which are adapted to extend from inside the patient. The leads having electrodes adapted to communicate with a heart of the patient and apply electrical signals to the heart. The electrodes providing cardiac signals to the computer in response to the electrical signals so the computer can determine in real time at least one of heart volume, end diastolic heart volume, end systolic heart volume, stroke volume, change in heart volume, change in stroke volume, contractility, respiration rate or tidal volume regarding the patient.
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公开(公告)号：US20180078169A1
公开(公告)日：2018-03-22
申请号：US15816067
申请日：2017-11-17
IPC分类号： A61B5/053 , A61B5/00 , A61B5/029 , A61B5/0295 , A61B5/0452 , A61B5/0476 , A61B5/20 , A61B5/107 , A61B5/08 , A61B5/0488 , A61B5/0215 , A61N1/365 , A61N1/39 , A61N1/368
CPC分类号： A61B5/0537 , A61B5/0031 , A61B5/0215 , A61B5/029 , A61B5/0295 , A61B5/0452 , A61B5/0476 , A61B5/0488 , A61B5/0535 , A61B5/0538 , A61B5/0809 , A61B5/1076 , A61B5/204 , A61B5/441 , A61B5/4519 , A61B5/4878 , A61N1/36521 , A61N1/3684 , A61N1/3962
摘要： An apparatus for determining tissue versus fluid components of an organ include a detector that generates a detector signal based on electrical signals derived from tissue and fluid. The apparatus includes a signal processor in communication with the detector which subtracts in real time a tissue component from the detector signal and produces a fluid volume signal. A method for monitoring a patient's fluid volume of a patient's organ. An apparatus for monitoring a patient's organ. A method for monitoring a patient's organ. A method to piggyback an admittance system onto a AICD/Bi-ventricular Pacemaker for a heart of a patient, in particular a weakened heart having features consistent with congestive heart failure. An apparatus for monitoring an organ, such as a heart, lungs, brain, skeletal muscle, and bladder of a patient which includes a detector which detects the admittance of the organ. The apparatus includes a transmitter in communication with the detector which transmits a wireless signal indicative of the admittance of the organ. A method for monitoring an organ of a patient includes the steps of detecting with a detector the admittance of the organ. There is the step of transmitting with a transmitter in communication with the detector a wireless signal indicative of admittance of the organ.
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公开(公告)号：US20150119947A1
公开(公告)日：2015-04-30
申请号：US14588683
申请日：2015-01-02
摘要： An apparatus for determining heart transplant rejection of a heart in a patient includes at least two electrodes adapted to be sewn into the heart that span the left ventricle. The apparatus includes a voltage generator adapted to be inserted in the patient which generates a voltage to the two electrodes and senses the resulting voltage from the two electrodes. A method for determining heart transplant rejection of a heart in a patient. A pacemaker for a patient (including bi-ventricular pacing and AICDs). The pacemaker includes an RV lead having four electrodes adapted to be inserted into the RV apex. The pacemaker includes a voltage generator which generates a voltage signal to the electrodes and senses the instantaneous voltage along the length of the RV and determines the real and imaginary components to remove the myocardial components of the septum and RV free wall to determine absolute RV blood volume. The pacemaker includes a battery connected to the voltage generator. The pacemaker includes a defibrillator connected to the battery. The pacemaker can also be a bi-ventricular pacemaker to restore RV and LV synchrony during contraction. A method for assisting a heart of a patient.
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5.发明申请公开(公告)号：US20080234588A1
公开(公告)日：2008-09-25
申请号：US10568912
申请日：2004-09-03
IPC分类号： A61B5/0215 , A61B5/04
CPC分类号： A61B5/0538 , A61B5/02007 , A61B5/0215 , A61B5/029 , A61B5/053
摘要： An apparatus for determining cardiac performance in the patient involving a conductance catheter (12) for measuring conductance and blood volume in a heart chamber of the patient. The apparatus includes a processor (14) for determining instantaneous volume of the ventricle by applying a non-linear relationship between the measured conductance and the volume of blood in the heart chamber to identify mechanical strength of the chamber. The processor (14) is in communication with the conductance catheter (12).
摘要翻译： 一种用于确定患者心脏性能的装置，涉及用于测量患者心室中的电导和血容量的导电导管（12）。 该装置包括处理器（14），用于通过在测量的心室中的测量的电导和血液体积之间施加非线性关系来确定心室的瞬时体积，以识别腔室的机械强度。 处理器（14）与导电导管（12）连通。
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6.发明授权公开(公告)号：US10368776B2
公开(公告)日：2019-08-06
申请号：US15816048
申请日：2017-11-17
IPC分类号： A61B5/053 , A61B5/02 , A61B5/0215 , A61B5/029
摘要： An apparatus for determining cardiac performance in the patient includes a plurality of electrodes adapted to be placed in the patient and in communication with a heart chamber of the patient for measuring conductance and blood volume in the heart chamber of the patient; and a processor for determining instantaneous volume of the ventricle based on measurement of complex admittance at a plurality of frequencies to identify mechanical strength of the chamber, the processor in communication with the electrodes. A method for determining cardiac performance in a patient.
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公开(公告)号：US10076669B2
公开(公告)日：2018-09-18
申请号：US13373850
申请日：2011-12-02
CPC分类号： A61N1/36571 , A61B5/0538 , A61N1/36521 , A61N1/3682 , A61N1/3684
摘要： An apparatus for treating a heart of a patient includes a first lead and at least a second lead for pacing the heart adapted to be in electrical communication with the heart. The apparatus includes a microcontroller in communication with the first and second leads which triggers the first lead at either different times or the same time from when the microcontroller triggers the second lead. Alternatively, the apparatus includes a microcontroller in communication with the first and second leads that determines heart volume, including stroke volume, end-systolic volume, and calculated values including ejection fraction, from admittance from signals from the first and second leads and uses the admittance as feedback to control heart volume ejected, as measured by stroke volume, calculated values such as ejection fraction, and control end-systolic volume, with respect to the first and second leads. A method for treating the heart of a patient.
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8.发明授权公开(公告)号：US09820674B2
公开(公告)日：2017-11-21
申请号：US15193931
申请日：2016-06-27
IPC分类号： A61B5/053 , A61B5/0215 , A61B5/029 , A61B5/02
CPC分类号： A61B5/0538 , A61B5/02007 , A61B5/0215 , A61B5/029 , A61B5/053
摘要： An apparatus for determining cardiac performance in the patient includes a plurality of electrodes adapted to be placed in the patient and in communication with a heart chamber of the patient for measuring conductance and blood volume in the heart chamber of the patient; and a processor for determining instantaneous volume of the ventricle based on measurement of complex admittance at a plurality of frequencies to identify mechanical strength of the chamber, the processor in communication with the electrodes. A method for determining cardiac performance in a patient.
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9.发明授权公开(公告)号：US09380946B2
公开(公告)日：2016-07-05
申请号：US14589603
申请日：2015-01-05
IPC分类号： A61N5/04 , A61B5/029 , A61B5/053 , A61B5/02 , A61B5/0215
CPC分类号： A61B5/0538 , A61B5/02007 , A61B5/0215 , A61B5/029 , A61B5/053
摘要： An apparatus for determining cardiac performance in the patient. The apparatus includes a conductance catheter for measuring conductance and blood volume in a heart chamber of the patient. The apparatus includes a processor for determining instantaneous volume of the ventricle by applying a non-linear relationship between the measured conductance and the volume of blood in the heart chamber to identify mechanical strength of the chamber. The processor is in communication with the conductance catheter. Methods for determining cardiac performance in a patient. Apparatuses for determining cardiac performance in a patient.
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10.发明授权公开(公告)号：US08929976B2
公开(公告)日：2015-01-06
申请号：US13066201
申请日：2011-04-08
CPC分类号： A61B5/0538 , A61B5/02007 , A61B5/0215 , A61B5/029 , A61B5/053
摘要： An apparatus for determining cardiac performance in the patient. The apparatus includes a conductance catheter for measuring conductance and blood volume in a heart chamber of the patient. The apparatus includes a processor for determining instantaneous volume of the ventricle by applying a non-linear relationship between the measured conductance and the volume of blood in the heart chamber to identify mechanical strength of the chamber. The processor is in communication with the conductance catheter. Methods for determining cardiac performance in a patient. Apparatuses for determining cardiac performance in a patient.
摘要翻译： 一种用于确定患者心脏性能的装置。 该装置包括用于测量患者心室中的电导和血容量的导电导管。 该装置包括一个处理器，用于通过在测量的心室中的测量的电导和血液体积之间施加非线性关系来确定心室的瞬时体积，以识别腔室的机械强度。 处理器与导电导管连通。 用于确定患者心脏性能的方法。 用于确定患者心脏性能的装置。
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