公开(公告)号：WO1994010904A1

公开(公告)日：1994-05-26

申请号：PCT/US1993010464

申请日：1993-11-01

Applicant: AMERICAN CARDIAC ABLATION CO., INC.

Inventor： AMERICAN CARDIAC ABLATION CO., INC. ,  NARDELLA, Paul, C.

IPC: A61B05/04

CPC classification number: A61B5/0538 ,  A61B5/042 ,  A61B18/12 ,  A61B18/1206 ,  A61B2018/0066

Abstract: An ablation catheter has an ablation electrode (12) at a distal end coupled to an ablation power source (18) through a low impedance coupling (16). The ablation electrode also functions as a sensing electrode, for monitoring the endocardial signal and preferably also tissue impedance during the ablation procedure, and is coupled to an electrode monitor through a high impedance coupling (24). A timing element (34) operates a plurality of switches (20, 26, 32) to selectively isolate, dampen, or interconnect various signal paths during plural repetitive non-overlapping ablation and quiescent intervals which alternate at a rate substantially above a Nyquist sampling rate. RF energy is delivered to the ablation site during the ablation intervals. The local endocardial signal is measured during the quiescent intervals.

Abstract translation: 消融导管具有通过低阻抗耦合（16）耦合到消融电源（18）的远端处的消融电极（12）。 消融电极还用作感测电极，用于在消融过程期间监测心内膜信号，优选地还包括组织阻抗，并且通过高阻抗耦合（24）耦合到电极监测器。 定时元件（34）操作多个开关（20,26,32），以在多个重复的不重叠的消融和静止间隔期间选择性地隔离，抑制或互连各种信号路径，所述间隔以基本上高于奈奎斯特采样率 。 射频能量在消融间隔期间被传送到消融部位。 在静止间隔期间测量局部心内膜信号。

公开(公告)号：WO1994008511A1

公开(公告)日：1994-04-28

申请号：PCT/US1993009786

申请日：1993-10-13

Applicant: DEL MAR AVIONICS

Inventor： DEL MAR AVIONICS ,  REICHL, Philip

IPC: A61B05/04

CPC classification number: A61B5/0464 ,  A61B5/4884 ,  H03H17/04

Abstract: Method and apparatus for analysis of electrocardiographic signals from a subject undergoing a stress test with signal pickup (6, 11-13) providing inputs to a computer (19) programmed to perform a bidirectional infinite impulse response filtration of the input signals to reduce noise and phase shift. The computer (19) then analyzes the filtered signals to determine the subject's condition.

Abstract translation: 用于分析来自经历使用信号拾取（6,11-13）进行应力测试的受试者的心电图信号的方法和装置，其向计算机（19）提供输入，该计算机（19）被编程为执行输入信号的双向无限脉冲响应过滤以减少噪声， 相移。 计算机（19）然后分析经滤波的信号以确定受试者的状况。

公开(公告)号：WO1993025142A2

公开(公告)日：1993-12-23

申请号：PCT/US1993005712

申请日：1993-06-15

Applicant: NATUS MEDICAL, INC.

Inventor： NATUS MEDICAL, INC. ,  STONE, Robert, T. ,  SHEEHAN, Neil, J. ,  ROUW, Scott, R.

IPC: A61B05/04

CPC classification number: A61B5/0836 ,  G01N33/004 ,  G01N33/497 ,  Y02A50/243

Abstract: A noninvasive device and methods for measuring the end-tidal carbon monoxide concentration in a patient's breath, particularly newborn and premature infants. The patient's breath is monitored. An average carbon monoxide concentration is determined based on an average of discrete samples in a given time period. The ratio of the end-tidal portion of the breath flow sample is separately determined, preferably based on monitoring the level of carbon dioxide in the gas sample and identifying the carbon dioxide concentration levels corresponding to the end-tidal portion of the breath sample. The sensed carbon monoxide level is converted to the end-tidal carbon monoxide level by subtracting the ambient carbon monoxide level and dividing the remainder by the ratio of end-tidal breath to breath in the breath sample. An easy to use microcontroller-based device containing a carbon dioxide detector, a carbon monoxide detector and a pump for use in a hospital, home, physician's office or clinic by persons not requiring high skill and training is described. A replaceable filter unit made of a single tri-lumen PVC extrusion and a tube segment interconnecting two of the lumens used to provide the consumable filtration material. The filtration material is interposed between the carbon dioxide sensor and the carbon monoxide sensor which are mounted inside the monitor housing. The filter unit also interfaces the canula for receiving the patient's breath sample and a hydrophobic filter between the patient and the carbon dioxide monitor. The filter unit is replaceable when the filtration medium is no longer effective or for use with different patients and may be disposable.

Abstract translation: 用于测量患者呼吸中的终端一氧化碳浓度的非侵入性装置和方法，特别是新生儿和早产儿。 监测患者的呼吸。 平均一氧化碳浓度基于给定时间段内的离散样品的平均值来确定。 优选基于监测气体样品中的二氧化碳水平并识别对应于呼吸样品的末端潮气部分的二氧化碳浓度水平，分别测定呼气流量样品的潮气部分的比例。 感测到的一氧化碳水平通过减去环境一氧化碳水平并将其余部分除以呼吸样本中的呼吸末端呼吸与呼吸的比例而转化为终潮一氧化碳水平。 描述了一种易于使用的基于微控制器的装置，其包含二氧化碳检测器，一氧化碳检测器和用于医院，家庭，医师办公室或诊所的不需要高技能和训练的人员的泵。 由单个三腔PVC挤出件制成的可替换的过滤器单元和连接用于提供消耗性过滤材料的两个内腔的管段。 过滤材料介于安装在监视器壳体内部的二氧化碳传感器和一氧化碳传感器之间。 过滤器单元还将套管接合以接收患者的呼吸样本和患者和二氧化碳监测器之间的疏水过滤器。 当过滤介质不再有效或与不同的患者一起使用时，过滤器单元是可更换的，并且可以是一次性的。

公开(公告)号：WO1993010706A1

公开(公告)日：1993-06-10

申请号：PCT/US1992009188

申请日：1992-10-28

Applicant: SOMNUS CORPORATION

Inventor： SOMNUS CORPORATION ,  BORNN, Robert

IPC: A61B05/04

CPC classification number: A61B5/6831 ,  A61B5/0006 ,  A61B5/04085 ,  A61B5/1135 ,  A61B5/411 ,  A61B5/747 ,  A61B2560/0209 ,  A61B2562/222 ,  G06F19/00 ,  G06F19/3418 ,  G16H40/63 ,  Y10S128/903 ,  Y10S128/904

Abstract: A stretchable harness-like apparatus (10) enables physiological parameters of a patient to be measured while he or she is ambulatory or stationary. The invention has a chest band (14), an optional shoulder band(s) (12), and an optional abdominal band (16) that can house respiration (26), pulse (26) and ECG sensors (24). The shoulder band(s) (12) are attached to the chest band (14) and all of the bands are worn on the body under a low tension. The apparatus (10) is typically used in conjunction with on-body monitoring electronics (102) and radio-linked to remote alerting modules or it can be hard-wired to on-body or remote monitoring and alerting equipment. The compliant nature of the device (10) allows for accurate monitoring without sacrificing patient mobility or comfort.

Abstract translation: 一种可伸展的线束状装置（10）能使患者的生理参数在移动或静止时被测量。 本发明具有胸带（14），可选的肩带（12）和可容纳呼吸（26），脉冲（26）和ECG传感器（24）的任选的腹带（16）。 肩带（12）附接到胸带（14），并且所有的带都在低张力下佩戴在身体上。 该装置（10）通常与身体监视电子设备（102）一起使用，并且与远程警报模块无线电连接，或者可以硬接线到身体或远程监视和警报设备。 装置（10）的顺从性允许精确的监测而不牺牲患者的行动能力或舒适度。

公开(公告)号：WO1993002615A1

公开(公告)日：1993-02-18

申请号：PCT/US1991005421

申请日：1991-07-30

Applicant: BATTELLE MEMORIAL INSTITUTE

Inventor： BATTELLE MEMORIAL INSTITUTE ,  COLLINS, H., Dale ,  GRIBBLE, R., Parks ,  BUSSE, Lawrence, J.

IPC: A61B05/04

CPC classification number: G03H5/00 ,  A61B5/0044 ,  A61B5/0402 ,  A61B5/04085

Abstract: A method for providing an image of the human heart's electrical system derives time-of-flight data from an array of EKG electrodes (14) and this data is transformed into phase information. The phase information, treated as a hologram, is reconstructed to provide an image in one or two dimensions of the electrical system of the functioning heart.

Abstract translation: 用于提供人心电系统的图像的方法从EKG电极阵列（14）导出飞行时间数据，并将该数据转换为相位信息。 被视为全息图的相位信息被重建以在功能心脏的电气系统的一维或二维中提供图像。

公开(公告)号：WO1992019153A1

公开(公告)日：1992-11-12

申请号：PCT/US1992003458

申请日：1992-04-27

Applicant: XITRON TECHNOLOGIES

Inventor： XITRON TECHNOLOGIES ,  WITHERS, Paul, Owen

IPC: A61B05/04

CPC classification number: A61B5/4869 ,  A61B5/0535 ,  A61B5/0537

Abstract: A method and apparatus for displaying complex impedance and related physical characteristics of an object (30) at a plurality of sinusoidal frequencies over a wide frequency range. Excitation signal waveforms (10, 14, 18) are stored in digital form. Digital sampling and processing circuitry (84, 86) provide high form. Digital sampling and processing circuitry (84, 86) provide high noise immunity and accurate measurement at all impedance phase angles. The technique is particularly well-suited to the measurement of complex impedances in living biological tissue because the digital implementation results in highly accurate measurement values over a plurality of selectable frequencies within a wide sinusoidal frequency region. A novel adaptation of digital cross-correlation (84) and convolution (86) techniques is used to simultaneously display (72) real and imaginary electrical impedance of living biological tissue at several selectable sinusoidal frequencies.

公开(公告)号：WO1992013484A1

公开(公告)日：1992-08-20

申请号：PCT/US1992001071

申请日：1992-02-11

Applicant: NEWARD, Theodore, Chester

IPC: A61B05/04

CPC classification number: A61B5/4362 ,  A61B5/0448

Abstract: There is disclosed herein a bipolar fetal monitoring electrode having an electrode body (12a), a spiral electrode (13) terminating in a point for engaging with fetal scalp, and a reference electrode (14) insulated from the spiral electrode. The end of the electrode from which the spiral extends includes one or more protrusions (22, 24) in the form of points, ramps, ribs or the like to increase the resistance of the spiral from unwinding from fetal scalp to which it is attached and thus to help prevent the spiral from unwinding spontaneously.

公开(公告)号：WO1992004863A1

公开(公告)日：1992-04-02

申请号：PCT/US1991006842

申请日：1991-09-20

Applicant: NEW ENGLAND MEDICAL CENTER HOSPITALS, INC.

Inventor： NEW ENGLAND MEDICAL CENTER HOSPITALS, INC. ,  SELKER, Harry, P.

IPC: A61B05/04

CPC classification number: A61B5/0452 ,  G06F19/00 ,  G16H50/30 ,  Y10S128/92

Abstract: A risk management system for use in a health care facility which receives patients who may be experiencing cardiac problems, the system including a first input port for receiving inputs derived from electrocardiograph measurements of a patient; a predictive instrument for using the inputs to compute a probability of the patient having a particular heart condition; a printer for generating a risk management form reporting the computed probability for the patient as well as other clinical and ECG-related observations for the patient, the form also containing categories requiring a person who is evaluating the patient to enter additional information relating to the evaluation of the patient, the computed probability triggering the printer to generate the form only when the computed probability falls within a preselected range which is less than the total range of possible values for the computed probability.

公开(公告)号：WO1990014792A1

公开(公告)日：1990-12-13

申请号：PCT/US1990003165

申请日：1990-06-05

Applicant: O'NEAL, John, L.

Inventor： VOGELGESANG, Peter, J.

IPC: A61B05/04

CPC classification number: A61B5/225 ,  A61B5/0006 ,  A61B5/0492 ,  A61B5/486 ,  A61B5/681 ,  A63B2024/0012 ,  A63B2024/0068 ,  A63B2060/464 ,  A63B2220/56 ,  A63B2230/60 ,  Y10S128/905

Abstract: The present invention is a biofeedback mechanism (10) which overlies a muscle, measuring the electrical impulses which are created in activating human muscle during a sports skill activity. The mechanism (10) signals the act of muscle contraction and may indicate the magnitude of the muscle contraction.

Abstract translation: 本发明是一种生物反馈机构（10），其覆盖肌肉，测量在体育技能活动期间激活人肌肉时产生的电脉冲。 机制（10）表明肌肉收缩的作用，可能表明肌肉收缩的大小。

公开(公告)号：WO1989012421A1

公开(公告)日：1989-12-28

申请号：PCT/US1989002719

申请日：1989-06-21

Applicant: THE CLEVELAND CLINIC FOUNDATION

Inventor： THE CLEVELAND CLINIC FOUNDATION ,  PETRE, John, H.

IPC: A61B05/04

CPC classification number: A61B5/0538 ,  A61B5/029 ,  A61B5/0295 ,  A61B5/0535

Abstract: Un cathéter de diagnostic utilisé pour mesurer le débit cardiaque dans la chambre ventriculaire droite d'un coeur comprend un corps de cathéter (10) comportant une périphérie extérieure et une section distale se terminant par une extrémité distale (50), ainsi qu'une section proximale se terminant par une extrémité proximale (20). Une pluralité d'électrodes espacées (70) sont fixées à la périphérie extérieure du corps le long de sa section distale. Une pluralité de fils électriques s'étendent dans le corps du cathéter à partir d'une électrode respective jusqu'à l'extrémité proximale (20) du corps du cathéter. On a prévu un élément (90) rigide allongé pour raidir une partie du corps du cathéter. Une extrémité dudit élément rigide est adjacente à la plus proche d'une pluralité d'électrodes. L'élément rigide place la pluralité d'électrodes de manière à les séparer du tissu endocardiaque.