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Long Distance WiFi for Telemedicine at Aravind Hospital, Tamil Nadu, India

Long Distance WiFi for Telemedicine at Aravind Hospital, Tamil Nadu, India. Sonesh Surana Tier Retreat, Oct 29, 2005 Tier, UC Berkeley. Outline. Introduction to Aravind Eye Hospitals Need for Telemedicine Solution – Past and Current Link Usage Future Directions. Intro: Aravind’s Mission.

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Long Distance WiFi for Telemedicine at Aravind Hospital, Tamil Nadu, India

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  1. Long Distance WiFi for Telemedicine at Aravind Hospital, Tamil Nadu, India Sonesh Surana Tier Retreat, Oct 29, 2005 Tier, UC Berkeley

  2. Outline • Introduction to Aravind Eye Hospitals • Need for Telemedicine • Solution – Past and Current • Link Usage • Future Directions

  3. Intro: Aravind’s Mission • Eradication of Needless Blindness • 45m globally • 90% in developing world • Sustainable • Replicable

  4. 2003 1.48m patients 200k surgeries 1.5k free eye camps Intro: Patient Throughput • 1978-2003 • 16m patients • 1.8m surgeries • 19k free eye camps • Each day • 4k patients • 540 surgeries • 3 camps/1000 ppl Between 50% - 60% get free care. Yet sustainable and profitable

  5. Need for Tele-Ophthalmology • Shortage of Doctors 1 • No incentive to live in rural areas • Low uptake of eye care services 2 • Transportation: Time, Cost, Company • Intra-doctor/nurse consultation • Ref: http://aravind.org/Telemedicine_new/index.html • Ref: Low uptake of rural eye services in rural India: a challenge for programs of blindness prevention. Arch. Ophthalmology, 1999 Oct; 117(10):1393-9

  6. Solutions: Existing Setup 1 • Mobile Van • VSat • N-logue for video conf. • 35 Kbps • $50/month/center • Central Server • Served 3500 patients upto July 2005 Andipatti Theni N-logue Ambasamudram 1. More details at http://aravind.org/Telemedicine_new/index.html

  7. Solutions: Our setup • 10.5km 802.11b link – setup July 2005 • 24dbi Directional Antennas • Soekris routerboards (~15watt) • Voltage Stabilizers • UPS batteries • No LOS – need relay

  8. Link Usage • Operational for 3 months now (since Aug05) • 4.5 Mbps UDP (~1-2% loss) • 4-5 patients/day (better perceived video quality) • Remote desktop management (VNC) • Training Nurses/Operators • Sotware Installation & Troubleshooting • Streaming Movies (VideoLan)

  9. Theni Hospital Bodi House Complex Andipatti Chimney 10.2 Kms Ambasamudram 33.3 Kms Kambam Future Directions

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