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Journal of the Korean Academy of Rehabilitation Medicine 2005;29(2):219-224.
New Device for Improving Cough Function: Through Assisting Glottic Function.
Kang, Seong Woong , Kim, Jung Eun , Yoo, Tae Won , Kang, Yeoun Seung
Department of Rehabilitation Medicine and Rehabilitation Institute of Muscular Disease, Yonsei University College of Medicine, Korea. kswoong@yumc.yonsei.ac.kr
보조기침 향상을 위한 새로운 기구의 고안 -성문 기능의 보조를 통하여-
강성웅, 김정은, 유태원, 강연승
연세대학교 의과대학 재활의학교실 및 근육병 재활연구소
The patients with glottic dysfunction cannot cough effectively. It is difficult to eliminate pulmonary secretions and to provide lung expansion exercise in those patients. Thus we made a device which substitutes the function of glottis and examines the effectiveness of the external glottic function of the device.
This new device was made of two parts: connection and control part. Connection part had three ports: patient connection, insufflation and connection port. The insufflation port with one-way valve allows additional air stacking using a manual resuscitation bag after a patients's deep inspiration. Control part had external glottic function by air flow control with button pushing simply. The vital capacity (VC), maximal insufflation capacity (MIC), MIC with device (MICdevice), unassistive peak cough flow (UPCF), assistive peak cough flow (APCF) and assistive peak cough flow with device (APCFdevice) were measured in six patients.
In tested patients, four were amyotrophic lateral sclerosis patients and two were cervical spinal cord injury patients with tracheostomized. The value of MICdevice or APCFdevice was higher than MIC or APCF in all patients.
This new device can improve the bronchial toileting by improving cough function and also provide lung expansion exercise effectively in patients with glottic dysfunction. (J Korean Acad Rehab Med 2005; 29: 219-224)
Key Words: Glottic dysfunction, Lung expansion exercise, Assisted cough, Peak cough flow
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