Medical device for reducing and diagnosing unnecessary cardiac pacing

A medical device and cardiac pacing technology, applied in the field of medical devices, can solve the problems of limited extension, cardiac arrest, increased atrial and ventricular pacing, etc.

Active Publication Date: 2016-10-12
MICROPORT SORIN CRMSHANGHAICO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in dual-chamber pacemakers, SAV and/or PAV are generally extended to promote self-conduction and reduce ventricular pacing, but the SAV/PAV extension in the AV search algorithm is limited, and some unnecessary ventricular pacing can still be seen
Another way to promote self-conduction is to switch the pacing mode to AAI(R) pacing mode with the backup support of DDD(R) pacing mode when self-AV conduction is found. There is a problem with this mode: when using AAI mode During

Method used

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  • Medical device for reducing and diagnosing unnecessary cardiac pacing
  • Medical device for reducing and diagnosing unnecessary cardiac pacing

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Embodiment Construction

[0028] The invention provides a medical device for reducing and diagnosing unnecessary cardiac pacing. By searching the patient's own heart rate, the dynamic lower limit frequency of the device is set to achieve the purpose of reducing unnecessary cardiac pacing.

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that the drawings are all in very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0030] The present invention reduces and diagnoses unnecessary cardiac pacing in medical devices such as figure 1 As shown, it includes: a microprocessor 100 and a digital / analog module 200 connected to the microprocessor 100; the microprocessor 100 in...

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Abstract

The invention provides a medical device for reducing and diagnosing unnecessary cardiac pacing. The medical device comprises a microprocessor and a digital/analog module connected to the microprocessor; a main control unit receives a sensing event when a sensing control/amplification unit is beyond a refractory period, or the main control unit measures an interval between the sensing event/ a pacing signal and a last sensing event/ a pacing signal after the main control unit transmits the pacing signal to a pacing control/ generation unit, and a heart rate is obtained through multiple intervals; the main control unit determines a low limit frequency of the medical device according to the heart rate, and sets a pacing frequency of the medical device. The device pacing frequency set by the medical device updates with the change of the heart rate of a patient. The medical device of the invention is applied to a double-chamber-mode atrium low limit frequency and a single-chamber-mode ventricle low limit frequency, can effectively reduce unnecessary atrium/ventricle pacing to realize physiological pacing, can eliminate ventricle long intermittence during atrial fibrillation (AF), and relatively regulates a ventricular rate and reduces possible symptoms of the patient.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medical device for reducing and diagnosing unnecessary cardiac pacing. Background technique [0002] At present, in dual-chamber pacemakers, SAV and / or PAV are generally extended to promote self-conduction and reduce ventricular pacing, but the SAV / PAV extension is limited in the AV search algorithm, and some unnecessary ventricular pacing can still be seen. Another way to promote self-conduction is to switch the pacing mode to AAI(R) pacing mode with the backup support of DDD(R) pacing mode when self-AV conduction is found. There is a problem with this mode: when using AAI mode During operation, if complete AV block occurs, there will be at least two beats of ventricular arrest due to the absence of ventricular pacing, and some patients will experience an uncomfortable feeling of arrest. On the other hand, how to reduce ventricular pacing in single-chamber pacemakers ...

Claims

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Application Information

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IPC IPC(8): A61N1/362A61N1/365
CPCA61N1/3625A61N1/36592
Inventor 王励孙庆怡朱晓明
Owner MICROPORT SORIN CRMSHANGHAICO LTD
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