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Patent Searching and Data


Title:
METHOD FOR REALIZING DOUBLE-CHAMBER DEMAND PACING
Document Type and Number:
WIPO Patent Application WO/2019/001478
Kind Code:
A1
Abstract:
Disclosed is a method for realizing double-chamber demand pacing, comprising the following steps: Setting, in advance, the upper limit tracking frequency of a double-chamber pacemaker to be equal to the lower limit frequency; controlling the double-chamber pacemaker to operate in a DDD mode, suppressing an atrial pulse after having sensed an atrial event, simultaneously starting an atrioventricular interval, and firing, when the atrioventricular interval ends, ventricular pacing until the ventricular rate exceeds the upper limit tracking frequency; continuing to sense the atrial event after the ventricular rate exceeds the upper limit tracking frequency; and suppressing, when an atrial perception event outside the refractory period is detected, the trigger of the atrial pulse and firing a ventricular pulse until the lower limit frequency interval ends, so as to realize a DDI mode. The present invention sets the values of the UTRI and the LRI to be consistent, so as to realize the DDI mode according to the DDD mode, not only improving the convenience, reliability and direct verifiability of realizing the DDI mode and greatly reducing the workload of verification, but also enabling the mode conversion to be rapid and smooth as there is no need to perform the substantive mode conversion, thereby having a good physiological performance and reducing the discomfort of a patient.

Inventors:
HSUNG JEAN CHEUI (CN)
LI GUILING (CN)
HUANG MIN (CN)
Application Number:
PCT/CN2018/093158
Publication Date:
January 03, 2019
Filing Date:
June 27, 2018
Export Citation:
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Assignee:
MICRO PORT SORIN CRM SHANGHAI CO LTD (CN)
International Classes:
A61N1/362; A61N1/365
Foreign References:
CN107376120A2017-11-24
CN104623805A2015-05-20
US5273035A1993-12-28
US20160067487A12016-03-10
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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