Cardiac electrode/pacer system analyzer
First Claim
1. An electrode/pacer system analyzer for use when implanting, testing and revising cardiac pacers and electrodes which displays any of a plurality of measurements of pacer and installed electrode functions selectively on a digital display which comprises:
- pacer analyzing means for measuring and displaying pacer characteristics, including a plurality of measuring circuits for measuring different characteristics of a pacer, a plurality of means for selectively completing the different measuring circuits when a pacer to be tested is connected to the pacer measuring circuit, means for connecting the pacer to be tested to the pacer measuring circuit and digital display means on which the selected pacer analyzer measurements are displayed when selected measuring circuits are completed;
electrode analyzing means for measuring and displaying the impedance of an installed cardiac electrode, including a measuring circuit for measuring said impedance, means for completing the measuring circuit when an installed electrode to be tested is connected to the measuring circuit, digital display means for displaying the impedance reading when the measuring circuit is completed and means for connecting the installed cardiac electrode to the electrode measuring circuit;
an internal pacer, useful for threshold analysis and for maintaining patient heartbeat, which comprises means for adjusting internal pacer impulse rate, means for adjusting internal pacer voltage, means for measuring at least one of rate, voltage and amperage of the pacer impulses, digital display means for displaying such measurement and means for connecting the implanted electrode to the internal pacer;
a rechargeable battery for energizing the pacer analyzing measuring circuit, the electrode analyzing measuring circuit, the internal pacer and the digital display means;
means for recharging the rechargeable battery from an external source of electricity; and
means for preventing externally supplied battery recharging electric power from communicating with the means for connecting a pacer to be tested to the pacer measuring circuit and the means for connecting an installed cardiac electrode to the electrode measuring circuit.
4 Assignments
0 Petitions
Accused Products
Abstract
An instrument for detecting and measuring various characteristics of cardiac pacers and electrodes and visually displaying such measurements selectively on a digital display includes pacer analyzer means for measuring and displaying characteristics of a pacer, such as rate, pulse width, peak voltage and trailing edge voltage, electrode analyzing means for measuring and displaying characteristics of an installed electrode, such as impedance and intrinsic and evoked R-wave voltages and internal pacer means including means for adjusting pacer impulse rate and voltage and means for measuring and displaying various pacer characteristics of the internal pacer impulses, such as rate, voltage and amperage, a rechargeable battery for energizing the various circuits of the instrument and means for preventing externally supplied battery recharging electric power from communicating through the instrument with installed cardiac electrodes and with a pacer to be tested. Among the more important features of the instrument described are improved measurements of impedance and R-wave characteristics, which are considered to be broadly novel, illuminated (when activated) pushbuttons for actuating various measuring circuits, color coding of such buttons and arrangement thereof in separable banks or groups for ready identification and ease of operation, and an extra large digital display, visible across an average operating room so that a displayed measurement can be read by doctors or technicians at any of various locations in the room and the characteristics measured can be readily identified by observation of the pushbutton that is illuminated.
96 Citations
32 Claims
-
1. An electrode/pacer system analyzer for use when implanting, testing and revising cardiac pacers and electrodes which displays any of a plurality of measurements of pacer and installed electrode functions selectively on a digital display which comprises:
- pacer analyzing means for measuring and displaying pacer characteristics, including a plurality of measuring circuits for measuring different characteristics of a pacer, a plurality of means for selectively completing the different measuring circuits when a pacer to be tested is connected to the pacer measuring circuit, means for connecting the pacer to be tested to the pacer measuring circuit and digital display means on which the selected pacer analyzer measurements are displayed when selected measuring circuits are completed;
electrode analyzing means for measuring and displaying the impedance of an installed cardiac electrode, including a measuring circuit for measuring said impedance, means for completing the measuring circuit when an installed electrode to be tested is connected to the measuring circuit, digital display means for displaying the impedance reading when the measuring circuit is completed and means for connecting the installed cardiac electrode to the electrode measuring circuit;
an internal pacer, useful for threshold analysis and for maintaining patient heartbeat, which comprises means for adjusting internal pacer impulse rate, means for adjusting internal pacer voltage, means for measuring at least one of rate, voltage and amperage of the pacer impulses, digital display means for displaying such measurement and means for connecting the implanted electrode to the internal pacer;
a rechargeable battery for energizing the pacer analyzing measuring circuit, the electrode analyzing measuring circuit, the internal pacer and the digital display means;
means for recharging the rechargeable battery from an external source of electricity; and
means for preventing externally supplied battery recharging electric power from communicating with the means for connecting a pacer to be tested to the pacer measuring circuit and the means for connecting an installed cardiac electrode to the electrode measuring circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
- pacer analyzing means for measuring and displaying pacer characteristics, including a plurality of measuring circuits for measuring different characteristics of a pacer, a plurality of means for selectively completing the different measuring circuits when a pacer to be tested is connected to the pacer measuring circuit, means for connecting the pacer to be tested to the pacer measuring circuit and digital display means on which the selected pacer analyzer measurements are displayed when selected measuring circuits are completed;
-
31. An electrode/pacer system analyzer for use when implanting and testing cardiac pacers and electrodes which displays any of a plurality of measurements of pacer and installed electrode functions selectively on a digital display which comprises:
- digital display means;
means for connection to an external pacer to be implanted;
means for connection to a cardiac electrode;
pacer analyzing means for measuring and controlling the display of the characteristics of a connected external pacer, including a plurality of measuring circuits for selectively measuring different characteristics of a connected external pacer and means for controlling the display on said digital display of the measurement values;
electrode analyzing means for measuring and controlling the display of the impedance of an installed, connected cardiac electrode, including a measuring circuit for measuring said impedance and means for controlling the display on said digital display of the measurement value;
an internal pacer, useful for threshold analysis and for maintaining patient heartbeat, which includes means for adjusting internal pacer impulse rate, means for adjusting internal pacer voltage, means for measuring at least one of rate, voltage and amperage of the pacer impulses, and means for controlling the display on said digital display of the measurement value; and
switch means for selectively connecting a connected cardiac electrode to said internal pacer and to a connected external pacer.
- digital display means;
-
32. An electrode/pacer system analyzer for use when implanting and testing cardiac pacers and electrodes which displays any of a plurality of measurements selectively on a digital display which comprises:
- digital display means;
means for connection to an external pacer to be implanted;
means for connection to a cardiac electrode;
pacer analyzing means for measuring and controlling the display of the characteristics of a connected external pacer, including a plurality of measuring circuits for selectively measuring different characteristics of a connected external pacer and means for controlling the display on said digital display of the measurement values;
an internal pacer, useful for threshold analysis and for maintaining patient heartbeat, which includes means for adjusting internal pacer impulse characteristics, means for measuring characteristics of the pacer impulses, and means for controlling the display on said digital display of the measurement values; and
switch means for selectively connecting a connected cardiac electrode to said internal pacer and to a connected external pacer.
- digital display means;
Specification