公开(公告)号：USD288478S

公开(公告)日：1987-02-24

申请号：US622983

申请日：1984-06-21

申请人： Scott W. Carlson ,  Walter L. Sembrowich ,  Mark B. Knudson ,  Richard L. Little ,  Ronald E. Eibensteiner ,  Logan W. Johnson ,  Roger L. Funk

设计人： Scott W. Carlson ,  Walter L. Sembrowich ,  Mark B. Knudson ,  Richard L. Little ,  Ronald E. Eibensteiner ,  Logan W. Johnson ,  Roger L. Funk

公开(公告)号：US4301405A

公开(公告)日：1981-11-17

申请号：US87790

申请日：1979-10-24

申请人： Scott W. Carlson

发明人： Scott W. Carlson

IPC分类号： A61B5/024 ,  A61N1/37 ,  G01R23/02 ,  G01R29/027 ,  G04D7/12

CPC分类号： A61N1/3706 ,  A61B5/024 ,  G01R23/02 ,  G01R29/0273 ,  G04D7/1207

摘要： A pulse interval to pulse rate converter for use in a portable, battery-powered, hand-held test instrument useful for evaluating the performance of a pulse generator such as a cardiac pacer or the like. A pulse generator being tested generates output pulses at an unknown rate and it is desired to measure this rate and to visually display same in units of pulses per minute. A count representative of the interval between successive pulses is developed in a first digital counter and subsequently stored in a holding register, thereby freeing the first counter to continue to measure subsequent pulse-to-pulse intervals. A digital downcounter, arranged to be decremented at a fixed high rate, receives the stored interval value and a tally is developed in a display counter of the number of times that the interval value can be decremented to zero within a known time period, e.g., one second. The count developed in the display counter thus corresponds to the rate value expressed in units of pulses per minute (ppm).

摘要翻译： 一种用于便携式，电池供电的手持式测试仪器中的脉冲间隔到脉搏率转换器，其用于评估诸如心脏起搏器等的脉冲发生器的性能。 正在测试的脉冲发生器以未知的速率产生输出脉冲，并且期望测量该速率并且以每分钟脉冲为单位在视觉上显示相同的速率。 代表连续脉冲间隔的计数在第一数字计数器中产生并随后存储在保持寄存器中，从而释放第一计数器以继续测量后续的脉冲 - 脉冲间隔。 被布置为以固定的高速率递减的数字下位计数器接收所存储的间隔值，并且在显示计数器中显示在已知时间段内间隔值可以递减到零的次数的计数，例如， 一秒。 在显示计数器中产生的计数器因此对应于以每分钟脉冲（ppm）为单位表示的速率值。

公开(公告)号：USD292229S

公开(公告)日：1987-10-06

申请号：US622987

申请日：1984-06-21

申请人： Mark B. Knudson ,  Walter L. Sembrowich ,  Scott W. Carlson ,  Richard L. Little ,  Ronald E. Eibensteiner ,  Richard W. Baker

设计人： Mark B. Knudson ,  Walter L. Sembrowich ,  Scott W. Carlson ,  Richard L. Little ,  Ronald E. Eibensteiner ,  Richard W. Baker

公开(公告)号：US4263548A

公开(公告)日：1981-04-21

申请号：US87680

申请日：1979-10-24

申请人： Scott W. Carlson ,  James T. Bartelt

发明人： Scott W. Carlson ,  James T. Bartelt

IPC分类号： G01R29/02 ,  G01R19/00 ,  G01R19/16 ,  H03K5/20

CPC分类号： G01R29/02

摘要： Apparatus for measuring the amplitude of an adjustable width current or voltage impulse at a known time interval following the initiation of the impulse. During a first pulse duration, a counter is advanced with clock signals having a frequency f.sub.1. The total number of clock signals accumulated during the interval is then transferred into a downcounter which is arranged to be decremented during a second identical interval by a clock signal having a frequency n (f.sub.1). When the downcounter reaches zero, a strobe pulse is produced for enabling the analog measuring circuits which sample the amplitude of the current or voltage impulse being monitored. By selecting the value n, the sampling point can be shifted in time along the width of the pulse being measured. For example, for n=2, the amplitude of the voltage or current pulse being measured will be that occurring at the midpoint of the pulse.

摘要翻译： 用于在脉冲开始之后的已知时间间隔测量可调宽度电流或电压脉冲的振幅的装置。 在第一脉冲持续时间期间，具有频率f1的时钟信号使计数器前进。 在间隔期间累积的时钟信号的总数然后传送到下位计中，下位计被布置为在第二相同间隔期间通过具有频率n（f1）的时钟信号递减。 当下行计数器达到零时，产生选通脉冲，以使能对所监视的电流或电压脉冲的振幅进行采样的模拟测量电路。 通过选择值n，采样点可以沿着被测脉冲的宽度在时间上移动。 例如，对于n = 2，被测量的电压或电流脉冲的幅度将是在脉冲的中点发生的。

公开(公告)号：US4256114A

公开(公告)日：1981-03-17

申请号：US87791

申请日：1979-10-24

申请人： Scott W. Carlson ,  James T. Bartelt

发明人： Scott W. Carlson ,  James T. Bartelt

IPC分类号： A61N1/37 ,  A61N1/36

CPC分类号： A61N1/3706

摘要： An electronic test instrument for measuring the refractory interval of a demand-type cardiac pacer pulse generator. The normal pulse-to-pulse interval of the pacer under test is measured by accumulating regularly occurring timing signals in a first counter during the interpulse period. At a predetermined time after the occurrence of the first pulse defining the interval, a pseudo R-wave is generated and applied to the pacer under test. The next pulse-to-pulse interval is then measured in a second counter in a fashion similar to the first measurement and a test is made to determine if the second interval exceeds the first by a prescribed amount. If so, it is known that the pseudo R-wave was effective to reset the pacer's pulse generator. If not, the time of occurrence of the next pseudo R-wave is delayed by a further known amount and the operation is repeated over and over until an extension of the normal pulse-to-pulse interval is noted. When a point is reached where the pseudo R-wave is displaced in time from a first pacer pulse just enough to cause resetting of the pacer's pulse generator, a measure is made of the displacement interval and this value is visually displayed.

摘要翻译： 一种用于测量需求式心脏起搏器脉冲发生器的难治间隔的电子测试仪器。 通过在脉冲周期期间在第一计数器中累积规则发生的定时信号来测量被测试器的正常脉冲间隔。 在定义了间隔的第一脉冲出现之后的预定时间，产生伪R波并将其施加到被测试的起搏器。 然后以类似于第一测量的方式在第二计数器中测量下一脉冲间隔，并进行测试以确定第二间隔是否超过第一间隔规定量。 如果是这样，则已知伪R波对起搏器的脉冲发生器复位是有效的。 如果不是，则下一个伪R波的发生时间被延迟了另外已知的量，并且一直反复进行操作，直到注意到正常脉冲间隔的延长。 当到达伪R波在时间上从第一起搏器脉冲恰好足以引起起搏器脉冲发生器复位的点时，测量位移间隔，并且该值被可视地显示。