scholarly journals SLAAP: Silencing Loud Alarms to Attenuate PTSD: Frequency- Selective Silencing Device for Digital Filtering of Alarm Sounds to Enhance ICU Patient Recovery

2017 ◽  
Author(s):  
Alyna Pradhan ◽  
Elizabeth Reynolds ◽  
Brittany Sweyer ◽  
Joseph J. Schlesinger
Keyword(s):  
Digital Filtering ◽  
Frequency Selective ◽  
Alarm Sounds

Frequency-Selective Silencing Device for Digital Filtering of Audible Medical Alarm Sounds to Enhance ICU Patient Recovery

2017 ◽  
Author(s):  
Joseph J. Schlesinger ◽  
Elizabeth Reynolds ◽  
Brittany Sweyer ◽  
Alyna Pradhan
Keyword(s):  
Intensive Care ◽  
Intensive Care Units ◽  
Patient Perspective ◽  
Digital Filters ◽  
Free Field ◽  
Digital Filtering ◽  
Raspberry Pi ◽  
Negative Consequences ◽  
Frequency Selective ◽  
Alarm Sounds

Free-field auditory medical alarms, although widely present in intensive care units, have created many hazards for both patients and clinicians in this environment. The harsh characteristics of the alarm noise profile combined with the frequency at which they sound throughout the ICU have created discomfort for the patients and contribute to psychological problems, such as PTSD and delirium. This frequency-selective silencing device seeks to attenuate these problems by removing the alarm sounds from the patient perspective. Patients do not need to hear these alarms as the alarms primarily serve to alert clinicians; therefore, this device, using a Raspberry Pi and digital filters, removes the alarm sounds present in the environment while transmitting other sounds to the patient without distortion. This allows for patients to hear everything occurring around them and to communicate effectively without experiencing the negative consequences of audible alarms.

A Comparative Study of Digital Filtering Techniques in Ultrasound and Carotid Bifurcation Atherosclerosis

2018 ◽  
Vol 1 (1) ◽  
pp. 5-12
Author(s):  
Adriana Milășan ◽  
◽  
Cristian Molder ◽  
Silviu Dumitrescu ◽  
◽  
...  
Keyword(s):  
Comparative Study ◽  
Digital Filtering ◽  
Carotid Bifurcation ◽  
Filtering Techniques

Error Probability of MRC in Frequency Selective Nakagami Fading in the Presence of CCI and ACI

2009 ◽  
Vol E92-A (11) ◽  
pp. 2679-2687
Author(s):  
Mohammad Azizur RAHMAN ◽  
Chin-Sean SUM ◽  
Ryuhei FUNADA ◽  
Shigenobu SASAKI ◽  
Tuncer BAYKAS ◽  
...  
Keyword(s):  
Error Probability ◽  
Nakagami Fading ◽  
Frequency Selective
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