Methods, devices and systems for single-chamber pacing using a dual-chamber pacing device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61N-001/362
A61N-001/375
출원번호
US-0650444
(2012-10-12)
등록번호
US-8903489
(2014-12-02)
발명자
/ 주소
Zhu, Qingsheng
Ortega, Daniel Felipe
Spinelli, Julio Cesar
출원인 / 주소
Cardiac Pacemakers, Inc.
대리인 / 주소
Schwegman Lundberg & Woessner, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
270
초록▼
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
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.
대표청구항▼
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
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; andcircuitry 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. 2. The pacing system of claim 1, further including a first capacitive component for providing the first electrostimulation pulse and a second capacitive component for providing the second electrostimulation pulse. 3. The pacing system of claim 1, further including a configurable routing circuit for routing the electrostimulation pulses. 4. The pacing system of claim 1, further including an interface for electrically connecting to two outputs of the signal generator, each output configured for providing a respective one of the first and second electrostimulation pulses, to the pacing lead. 5. The pacing system of claim 1, wherein the signal generator further includes a third electrostimulation output. 6. The pacing system of claim 1, further including a sense input for detecting electrical signals of the heart. 7. The pacing system of claim 1, further including pacing control circuitry for modifying the characteristics of the first and second electrostimulation pulses. 8. The pacing system of claim 1, further including an electrode lead for sensing atrial activity. 9. The pacing system of claim 1, further including the pacing lead, wherein the pacing lead is configured to be disposed in a right ventricle. 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; andelectrical 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. 11. The circuit of claim 10, wherein the electrical circuitry is programmable such that the first and second outputs can be connected to any of the outputs. 12. The circuit of claim 10, wherein each of the two electrostimulation pulses is generated using an independently referenced signal source. 13. The circuit of claim 10, further including two capacitive sources each having respective positive and negative terminals, the positive and negative terminals of the first capacitive source corresponding to the first and second electrical connections, respectively, and the positive and negative terminals of the second capacitive source corresponding to the third and fourth electrical connections, respectively. 14. The circuit of claim 13, wherein each of the two electrostimulation pulses is provided by an independently referenced capacitive source. 15. The circuit of claim 10, further including a sense input for detecting electrical signals of a heart using a pacing lead configured to sense atrial activity. 16. The circuit of claim 10, further including a pacing control circuit for modifying characteristics of the first and second electrostimulation pulses. 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, anda single pacing lead; andelectrical 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. 18. The device of claim 17, wherein the connector housing is further configured for physically mating with a third interface of the CRT apparatus. 19. The device of claim 18, wherein the electrical connections further include a connection between a sense signal of the third interface and the single pacing lead. 20. The device of claim 18, wherein the electrical connections further include connections between fifth and sixth outputs and a second pacing lead.
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