Methods, devices and systems for single-chamber pacing using a dual-chamber pacing device
First Claim
1. A pacing system comprising:
- a signal generator that provides a first electrostimulation pulse and a second electrostimulation pulse, each electrostimulation pulse having positive and negative signal components, the first and second pulses including at least partially overlapping opposing polarity waveforms to pace a heart from a single chamber of the heart, the electrostimulation provided for delivery via a pacing lead having a first electrode and a second electrode; and
circuitry for routing at least some of the signal components of the two electrostimulation pulses to the pacing lead by connecting a negative component of a first electrostimulation pulse and a positive component of a second electrostimulation pulse to a common reference and by connecting the positive component of the first electrostimulation pulse to the first electrode and the negative component of the second electrostimulation pulse to the second electrode.
1 Assignment
0 Petitions
Accused Products
Abstract
Various embodiments of the present invention are directed to systems, methods and devices for cardiac applications including those relating to pacing devices. One such device is directed to a cardiac rhythm therapy (CRT) device designed for dual chamber pacing using two pacing signals each having a positive and negative component that has been modified for single chamber pacing. The device comprises a first output that connects to a pacing lead; a second output that connects to the pacing lead; a third output that connects to a reference point; and electrical circuitry connecting the second electrical connection to the first output, the third electrical connection to the second output, and the first and fourth electrical connections to the third output.
-
Citations
20 Claims
-
1. A pacing system comprising:
-
a signal generator that provides a first electrostimulation pulse and a second electrostimulation pulse, each electrostimulation pulse having positive and negative signal components, the first and second pulses including at least partially overlapping opposing polarity waveforms to pace a heart from a single chamber of the heart, the electrostimulation provided for delivery via a pacing lead having a first electrode and a second electrode; and circuitry for routing at least some of the signal components of the two electrostimulation pulses to the pacing lead by connecting a negative component of a first electrostimulation pulse and a positive component of a second electrostimulation pulse to a common reference and by connecting the positive component of the first electrostimulation pulse to the first electrode and the negative component of the second electrostimulation pulse to the second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. For use with a cardiac resynchronization therapy (CRT) device designed for biventricular pacing using a first electrostimulation pulse having a positive component provided to a first electrical connection and negative component provided to a second electrical connection and a second electrostimulation pulse with a positive component provided to a third electrical connection and negative component provided to a fourth electrical connection, the first and second pulses including at least partially overlapping opposing polarity waveforms, a circuit comprising:
-
a first output configured to be connected to a pacing lead; a second output configured to be connected to the pacing lead; a third output configured to be connected to a reference point; and electrical circuitry connecting the first electrical connection to the first output, the fourth electrical connection to the second output, and the second and third electrical connections to the third output. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. A device for connecting a pacing lead to a cardiac rhythm therapy (CRT) apparatus designed for dual chamber pacing using two electrostimulation pulses each having positive and negative signal components, the first electrostimulation pulse having a positive component provided to a first output and a negative component provided to a second output, the second electrostimulation pulse having a positive component provided to a third output and a negative component provided to a fourth output, wherein the pulses include at least partially overlapping opposing polarity waveforms, and wherein, for dual chamber pacing, the first and second outputs are for use with a first pacing lead and the third and fourth outputs are for use by a second pacing lead, the device comprising:
-
a connector housing for physically mating with two interfaces of the CRT apparatus, the first interface providing the first and second signal components and the second interface providing the third and fourth signal components, each interface arranged for physically mating with a pacing lead, and a single pacing lead; and electrical connections from the second and third outputs to a common reference point and from the first and fourth outputs to respective inputs of the single pacing lead, thereby allowing single chamber pacing using the single pacing lead. - View Dependent Claims (18, 19, 20)
-
Specification