A Study on Electro-Magnetic Interferences for ICD cause of Dental Electric Equipments

牙科电动设备ICD电磁干扰原因研究

基本信息

批准号：
16591971
负责人：
SUGA Takeo
金额：
$ 0.77万
依托单位：
Tsurumi University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16591971/
关键词：
ICD EMI Dental Device 電磁障害埋め込み型除細動装置 EMI Irnichモデル歯科診療環境 ICD

项目摘要

ICD(implantable cardioverter-defibrillator) are used to artificially stimulate the heart in case of arrhythmia. As the population of elderly increases, number of patients with ICD increase. ICD can be affected by electrical equipment, known as electromagnetic interference (EMI).In dental treatment, it is necessary to use electrical dental equipments, but influences of these devices to ICD are unknown and reported only a few. Recent ICD therefore only functions when necessary.We evaluated recent electrical dental equipment aimed to systematize safety and positive dental treatment.Material and methodsWe tested 12 type 24 devices of electrical dental equipments that are being used in Tsurumi Univ. School of Dental Medicine hospital..Preliminary examination : Used flux-gate magneto-meter to measurement of flux density. If the value of flux density was high, these equipments were tested in simulation model.Simulation model : A water tank designed as the same size of the human body was filled with physiological salt solution. ICD was placed under the solution 12mm, connected by telemetric system to programmer.Results : ICD were inhibited by EMI of few electrical dental devices.These device were classified into two categories, according to cause of EMI.In case of type 1, some devices power supply unit of electrical device inhibit to pacing distance of 27 cm. This value was enough to influence to actual state of dental treatment.In case of type 2, some electrical root measurement device inhibit to pacing only when power on/off timing usage.All data was printed out by programmer, stored and analyzed.We suggest that precaution must be taken with the usage of electrical dental devices.This examination was done in limited conditions. Our settings were placed on most severe conditions.We must recognize the characteristics of ICD and electrical dental devices, so there are no limitation of dental treatment itself.

ICD（植入式心脏复律除颤器）用于在心律失常的情况下人工刺激心脏。随着老年人口的增加，ICD患者数量也在增加。 ICD会受到电气设备的影响，称为电磁干扰(EMI)。在牙科治疗中，需要使用牙科电气设备，但这些设备对ICD的影响尚不清楚，报道也很少。因此，最近的 ICD 仅在必要时起作用。我们评估了最新的电动牙科设备，旨在系统化安全性和积极的牙科治疗。材料和方法我们测试了鹤见大学正在使用的 12 种 24 型电动牙科设备。牙科医学院医院..初步检查：使用磁通门磁力计测量磁通密度。如果通量密度值较高，则在模拟模型中对这些设备进行测试。模拟模型：设计为与人体相同大小的水箱，充满生理盐溶液。 ICD 放置在溶液 12mm 下，通过遥测系统连接到编程器。结果：ICD 受到少数电气牙科设备的 EMI 抑制。根据 EMI 的原因，这些设备分为两类。在类型 1 的情况下，某些设备电气设备的电源装置限制步距为 27 厘米。这个值足以影响牙科治疗的实际状态。在类型2的情况下，某些电根测量装置只有在电源开关定时使用时才会抑制起搏。所有数据都由程序员打印出来，存储和分析。我们建议使用电动牙科设备时必须采取预防措施。这项检查是在有限的条件下进行的。我们的设置是在最恶劣的条件下进行的。我们必须认识到ICD和电动牙科设备的特点，因此牙科治疗本身没有任何限制。