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Auto-threshold test for his-bundle pacing

A technique of His beam and threshold, applied in the field of medical system, which can solve complex and other problems

Pending Publication Date: 2020-11-17
CARDIAC PACEMAKERS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the surgical procedure to place an LV lead through the coronary sinus and into a vein on the wall of the left ventricle can be complex and challenging in some patients

Method used

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  • Auto-threshold test for his-bundle pacing
  • Auto-threshold test for his-bundle pacing
  • Auto-threshold test for his-bundle pacing

Examples

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Embodiment Construction

[0046] Systems, devices, and methods for pacing cardiac conducting tissue are disclosed herein. Embodiments of the system may include an electrical stimulator to generate His bundle pacing (HBP) pulses to stimulate the His bundle. The system can sense physiological signals and detect local His bundle activation discrete from pacing artifacts of HBP pulses. In response to HBP pulses with different stimulation intensity values, the control circuit verifies the capture state. Based on the capture state, the control circuit determines one or more pacing thresholds, including S-threshold and NS-threshold. The electrical stimulation circuit delivers HBP pulses according to a stimulation intensity determined based on the selective HBP threshold and the non-selective HBP threshold.

[0047] figure 1 is a schematic diagram illustrating an embodiment of a cardiac disease management system 100 and a portion of an environment in which the system 100 may operate. Cardiac disease manage...

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Abstract

Systems and methods for pacing cardiac conductive tissue are described. A medical system includes an electrostimulation circuit to generate His-bundle pacing (HBP) pulses. A sensing circuit senses a physiologic signal, and detect a local His-bundie activation discrete from a pacing artifact of the HBP pulse. A control circuit verifies capture status in response to the HBP pulses. Based on the capture status, the control circuit determines one or more pacing thresholds including a selective HBP threshold representing a threshold strength to capture only the His bundle but not the local myocardium, and a non-selective HBP threshold representing a threshold strength to capture both the His bundle and the local myocardium. The electrostimulation circuit may deliver HBP pulses based on the selective and non-selective HBP thresholds.

Description

[0001] priority statement [0002] This application claims the benefit of priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application Serial No. 62 / 639,113, filed March 6, 2018, which is incorporated herein by reference in its entirety. technical field [0003] This document relates generally to medical systems and, more particularly, to systems, devices, and methods for pacing cardiac conducting tissue, such as the bundle of His. Background technique [0004] The heart is the center of a person's circulatory system. It includes an electromechanical system that performs two primary pumping functions. The left part of the heart, which includes the left atrium (LA) and left ventricle (LV), draws oxygenated blood from the lungs and pumps it to the various organs of the body, thereby supplying the organs with the oxygen they need for their metabolism. The right part of the heart, which includes the right atrium (RA) and right ventricle (RV), draws deoxygenated bloo...

Claims

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Application Information

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IPC IPC(8): A61N1/37A61N1/36
CPCA61N1/36114A61N1/36139A61N1/371A61N1/3684A61N1/3621A61N1/3682A61N1/3706A61N1/0568A61N1/0573A61B5/349
Inventor 艾米·珍·布里斯本戴维·J·特恩斯艾伦·查尔斯·舒罗斯迪帕·马哈詹大卫·L·佩什巴赫
Owner CARDIAC PACEMAKERS INC
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