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MEASUREMENT OF RESPIRATORY SOUNDS IN THE EAR CANAL

耳道呼吸音的测量

基本信息

批准号：
2539157
负责人：
JEFFREY P MANSFIELD
金额：
$ 7.88万
依托单位：
SOUND MEDICAL SOLUTIONS
依托单位国家：
美国
项目类别：
财政年份：
1998
资助国家：
美国
起止时间：
1998-05-15 至 1999-01-14
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/2539157
关键词：
biomedical equipment development clinical research electronic recording system human subject method development monitoring device noninvasive diagnosis pulmonary respiration respiratory function spirometry ultrasonography

项目摘要

This SBIR phase I project investigates a method to measure respiratory flow via a remotely located sensor on the body. In recent years, computer- based methods to objectively characterize breath sounds relative to the structure and function of the respiratory system have experienced great advancements with promising applications for the detection of apnea, snoring, bronchoconstriction, and coughing. However, current methods to measure respiratory sounds that involve taping microphones or accelerometers to the chest are impractical in clinical situations (e.g. during sleep) where airborne noise and patient motion can confound the acoustical measurements. In contrast, the proposed method offers a unique site for respiratory sound measurement that is noninvasive, unobtrusive, and highly immune to external noise, making it well-suited for use in clinical and ambulatory settings. The feasibility of this method will be assessed through investigations of passive and breath sound transmission from the respiratory tract to this remote sight. This will define the most informative frequency bands for detection of breath sounds, establish the relationship of air flow to respiratory sounds, and determine the levels of airborne noise under which this method can adequately detect breaths sounds. PROPOSED COMMERCIAL APPLICATION: This simple-to-use, inexpensive technology can be implemented into home monitors that provide nocturnal computer-based surveillance of breathing to detect apnea, snoring, wheezing (bronchoconstriction), and chronic coughing. Detection of wheezing and coughing can be useful for assessing patient response to drug therapy.

该SBIR第一阶段项目研究了一种测量呼吸的方法，通过身体上的远程传感器测量流量。近年来，计算机- 基于方法来客观地表征呼吸声音相对于呼吸系统的结构和功能经历了巨大的变化，具有用于检测呼吸暂停的有前景的应用的进展，打鼾支气管收缩和咳嗽然而，目前的方法，测量呼吸声，包括录音麦克风或在临床情况下（例如，在睡眠期间），其中空气传播的噪声和患者运动可能混淆声学测量相比之下，所提出的方法提供了一个独特的用于呼吸声测量位置是无创的、不显眼的并且对外部噪音具有很强的免疫力，使其非常适合用于临床和门诊环境。该方法的可行性将通过以下调查进行评估：被动和呼吸声从呼吸道传输到这个遥视这将定义信息量最大的频带，检测呼吸音，建立气流与呼吸声，并确定空气中的噪音水平，该方法可以充分地检测呼吸声音。拟定商业应用：这种简单易用、价格低廉的技术可以在家庭中实现。提供夜间基于计算机的呼吸监测的监视器检测呼吸暂停、打鼾、喘息（支气管收缩）和慢性咳嗽喘息和咳嗽的检测可用于评估患者对药物治疗的反应。