Abstract
In this study, the emergency triage support system was taken as an example. We develop new call flow style and combine traditional passive call flow. The system is designed by voice menu and users can command services actively. The telephone connect computer server to enter call flow module with ASR and TTS. Then the recognition term come from voice term database. Voice management center is an ER triage decision system.
Introduction
According to the International Telecommunication Union (ITU) research, people holding the rate of mobile phone is the first of the world in Taiwan and every one has one or two cell phones. Therefore, we have ideas which setup an emergent call center. The first-aid personnel call center and via voice input the patient’s data and medical care at the same time. If medical staffs can acquire patient’s data, maybe they will ready in early time.
Materials and Methods
The hardware Architecture of System needed One phone voice card and one line voice card, the phone voice care was connected extension and the line voice card was connected PSTN. They were interconnected with RJ45 port. In part of VoIP we install Skype AP than user could via soft phone to dial in this system.
The telephony module had three devices that include PSTN, cell phone and Skype soft phone. In telephony call flow development platform was CONTAX IVR and embedded in Automatic Speech. Recognition (ASR) and Text-To-Speech (TTS) engines. The voice management center was developed by Microsoft ASP.NET and database is Microsoft Office Access2003. Then the recognition term come from voice term database. Voice management center is an ER triage decision system. The out bound module was function of urgent notice. If there was critical situation the system could automatic dial medical staffs to transfer voice message. The Voice Management Center is displayed by GUI.
In order to comprehend system’s easy of use and usefulness; we used simulated cases for ER’s nurses to operate this system. We selected ten nurses that come from emergency room of region teaching hospital as our subjects.
Results
At this study, we visit ten clinical ER nurses to test our voice system, among the 10 subjects in the intervention group. We has tested three scenarios
We demonstrated and illustrated how to use the system. Users could understand design conception and know this system. The situations as below
Case 1 A DOA female patient, suicide by hanging
Case 2 A large number of patient 10 people, one man strangulation of right arm; it resulted in traumatic amputation of right arm. His symptom is pale cold sweating coma and vital sign BP:80/50 PR:122 RR:24 BT:35.9
Case3 An old man comes with rest home staff. His symptom is conscious unclear somnolence medical history is DM and vital sign BP:100/60 PR:68 RR:17 BT:34.2
which are DOA a large number of patients and critical trauma. We measure the completion time and recognition rate for all the scenarios. The average completion time for DOA is 38.6 seconds, for the large patients is 252.7 seconds and for the critical trauma case average is 267.2 seconds. The recognition rates of all cases are above 90%.
Conclusions
We will continue to extend our system and further apply it to other domains. Future studies may combine the internet platform with the WiFi phone and soft phone (skype) and broaden the scope of application scope in Taiwan. It may improve the management of patients and enhance the quality of medical care.
Figure 1.
The hardware Architecture of System
Figure 2.
The system design conception
References
- 1.William A, Yarberry Lr. Computer Telephony Integration. 2000. [Google Scholar]
- 2.Cohen Michae H, Giangola James P, Balogh Jennifer. Voice User Interfce Design. [Google Scholar]