Application of one kind of alarm system with pressure sensor in CT examination
10.3969/j.issn.1672-8270.2025.07.034
- VernacularTitle:一种压力传感报警系统在CT检查中的应用
- Author:
Dabao ZHANG
1
;
Mengya CHENG
1
;
Xuebo FAN
1
;
Shunping LIU
1
Author Information
1. 献县中医医院影像科 沧州 062250
- Publication Type:Journal Article
- Keywords:
Computed tomography(CT);
Alarm system with pressure sensor;
Compression injury;
Upper limb dysfunction
- From:
China Medical Equipment
2025;22(7):180-182
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To develop one kind of alarm system with pressure sensor,so as to prevent compression injuries of patients with upper limb dysfunction due to the movement of the examination bed during computed tomography(CT)examination.Methods:The alarm system with pressure sensor was constructed on the basis of Arduino UNO open-source main control board and the HX711 weighing module.The Arduino E3 power supply module was used to provide power for system,and ESP8266 main control board was used to realize remote alarm,and its 3 dimension(3D)printed customized shell can directly be installed at the edge of examination bed.A total of 228 patients with upper limb dysfunction who underwent CT examination at Xianxian County Hospital of TCM during July 2022 and October 2022 were selected.They were randomly divided into observation group and control group by using a computer-generated random number sequence.The observation group was monitored for possibly potential compression risks on upper limb of patients by using the alarm system with pressure sensor.The patients of control group were respectively accompanied by one accompanying personnel to go into the scanning room,and they wore lead aprons,lead skirts,and other protective appliances for radiation protection.When a patient is found to be at risk of being crushed,an alarm should be raised by calling a halt.The valid alarm rates of the two alarm methods were calculated.Results:There were 37 times of alarm in observation group in examination,and 31 times were valid alarms and 6 times were invalid alarms in them.In control group,there were 49 times of alarm from accompanying personnel,and 29 times were valid alarms and 20 times were invalid alarms in 49 times of alarm.The valid alarm rate of observation group was significantly higher than that of control group,and the difference was statistically significant(x2=6.048,P<0.05).Conclusion:The installation of alarm system with pressure sensor is easy,and its use is convenient,and it has a higher valid alarm rate during CT examination,and it can effectively protect patients to prevent compression injuries.
