Rancang Bangun Alat Terapi Lengan Continous Passive Motion (CPM) dengan Control Electromyograph (EMG) Untuk Pasien Pasca Operasi dan Stroke

Abstract

Abstrak Peralatan kesehatan bidang fisiotherapy mengalami banyak perkembangan, diantaranya untuk pemulihan pasien pasca operasi patah tulang dan stroke. Pasien membutuhkan alat bantu perangkat Continous Passive Motion (CPM) untuk gerakan pasif terus menerus yang berfungsi melatih kinerja lengan dan kaki untuk pemulihan kekakuan gerakan. Perangkat CPM yang ada masih menggunakan sistem analog dan tidak ada sistem monitoring kondisi pasien. Penelitian ini menggabungkan perangkat Continuous Passive Motion (CPM) lengan dengan Control Electromyograph (EMG) untuk mengoptimalkan proses pemulihan pasien pasca operasi dan stroke. Rotary Encoder dan rangkaian Pulse Width Modulation memonitoring pasien secara kontinu. Hasil kalibrasi sistem driver motor pada kecepatan motor adalah 68.7 rpm dan sudut posisi motor adalah 44.8° dengan batas nilai toleransi masing-masing ±5% sedang pembacaan sensor sinyal EMG terukur nilai amplitude rata-rata sebesar 0,242mV pada sinyal gerak lengan 45º dan 0,253mV pada sinyal gerak lengan 90º. Abstract [Title: Design of Continous Passive Motion (CPM) Arm Therapy Tool with Electromyograph (EMG) Control for Post surgery and Stroke Patients] The health equipment in the field of physiotherapy has developed. Among them for the recovery of patients after surgery fractures and strokes. Patients need a Continous Passive Motion (CPM) device for continuous passive movement that functions to train the performance of the arms and legs to recover stiffness of movement. The existing CPM device still uses an analog system and there is no patient condition monitoring system. This study combines the arm's CPM device with Electromyograph (EMG) control to optimize the recovery process of patients postoperatively and stroke. The Rotary Encoder and Pulse Width Modulation circuit monitor the patient continuously. The results of the calibration of the motor driver system at motor speed is 68.7 rpm and the motor position angle is 44.8 ° with a tolerance value of ± 5% while the EMG signal sensor readings measured the average amplitude value of 0.242mV on the 45º and 0.253mV arm motion signals at the 90º arm motion signal, respectively.