合併使用紅外光及超音波的可穿帶式裝置來改善神經性膀胱病患的生活品質
王致丞1,2、杜翌群3
1奇美醫學中心 外科部 泌尿科；2成功大學醫學工程研究所；3南台科技大學 電機工程學系
A wearable device combined with NIRS and ultrasound to improve life quality of neurogenic bladder patient
Jhih-Cheng Wang1,2, Yi-Chun Du3
Divisions of Urology, Department of Surgery, Chi Mei Medical Center, Tainan, Taiwan;
Department of Electrical Engineering, Southern Taiwan University of Science and Technology, Tainan City, Taiwan
Purpose: Neurogenic bladder dysfunction (NBD) is a major cause to the morbidity and mortality to subjects with spinal cord injury (SCI) patients who commonly have voiding dysfunction and loss of bladder fullness sensation. Bladder emptying with clean intermittent catheterization (CIC) is currently available measure to maintain urologic health with low urinary tract complication. However, patients have to rely on regularly scheduled urination to avoid overload in the bladder which greatly influence their quality of life (QOL). Our study aims are to develop an assistive device for non-invasive and ambulatory urodynamic monitoring in various posture positions (e.g. siting in wheelchair condition) based on wireless near infrared spectroscopy (NIRS) and miniature ultrasound sensing techniques. It can accurately measure the threshold of the bladder for timing of ICI so that SCI patients can really focus on what he/she is focusing on.
Materials and Methods: A wearable NIRS module using optoelectronic method for measuring the changes in chromophore concentration related to oxygenation and hemodynamic changes in real time. This NIRS approach is particularly useful when the underlying pathology related to a disorder of oxidative metabolism or hemodynamics involving the bladder and or urinary sphincter. Ultrasound and inertial sensors will be utilized to measure the distance between abdominal with bladder urine which is useful for easy positioning.
Results:
Conclusions: The proposed measurement ultrasound positioning and non-invasive NIRS bladder hemodynamic measurement devices can be firstly validated in clinical setup for human healthy and SCI subject as a means of ambulatory monitoring of voiding. With recruitment of a SCI subject dedicating for this device, the developed device is designed for the needs of SCI subjects which not only will be validated in clinical setup but also tested for daily homecare toward optimal urination with CIC of SCI subjects.