Isob2014 2(odagiri)

Ultrasound Doppler Fetal Heart Valve Signals Telemetry for Patient-Conducted Remote Fetal

Monitoring Using Blue-Tooth Local Connection to Networked PDA

ISOB2014 Session 4-4 2014.5.20@Kyoto Univ.

1Odagiri K, 2Hara H, 3Takeuchi Y

1Naze Tokusukai Hospital, Amami, Japan2Kagawa University, Takamatsu, Japan

3Asahikawa Medical University, Asahikawa, Japan

All the slides are ready for review at

“Slide Show”

Suggested keywords:

“Yasuhito Takeuchi” and “ISOB2014”

Patient conducted NST (Non Stress Test) fetal monitoring data to be sent to networked

data center, via her own smart-phone.

What are we trying to do ??

Styles of Fetal Monitoring

Fetal Doppler Telemeter

No Essential Progress for 30 Years ??

In-Hospital Use System, Home Use System, Practiced Systems In-Use are, At Large, “D

edicated, Closed System”.

Whilst that, Electronic Patient Data Management Systems Have Made a Great Progr

ess.

So/Then, How about Mobile Phones, i-Somethings, Tablets ----- PDAs.

Mostly Simple/Easy/Always-Available Interface with Operating Power Available

Can We Convert This to Fetal Phono??

Unforthnately the Answer is NO.

(Fetal) Phono is 100%-OUT of Voice Passband of Telephony

Can We Convert This to Fetal Doppler??

the Answer is “YES+but”

Needs Another Battery

Whatever Must Make Own is ------- Signal Transduction Device ONLY!!

Interim Conclusion & Recommendation

Do/Make as NOTHING as Possible

Conclusion for Conclusion

Minimum Necessary Hardware (in patient side)

Doppler Transceiver ONLYRest of Necessary Resources are

ALL TRANS-NETWORK supported.

If One Like Phono or AECG rather than Doppler

Do Make Phono or AECG as You Like

Remake after 30 years

Easiest method using legacy 433MHz ISM band SCPC (Single Channel Per Carrier) NBFM system

Medical Telemeter standards (in US, Japan, EU) are basically of legacy SCPC system in or around

400MHz.

433.92MHz Legacy Analog SCPC NBFM system

Technically meets with Japanese medical telemetry standard. In design ready for license acquisitio

n and in-hospital use.

Needs a dedicated receiving system.

Ready to connect to existing in-hospital fetal monitors across external Doppler audio in

terface.

433.92MHz Legacy Analog SCPC NBFM system

>100% Excellent as a Closed System

Diagnostic quality of fetal heart rate trace has been obtained.

Typical Fetal Heart Valve Doppler Signal. Selection Filter 150Hz - 1KHz for ultrasound carrier frequency 2MHz. (horizon

tal axis span about 2 sec,)

Astral plane antenna

AX-700B Instrumentation receiver

Audio data (MD) recorder

hp8041A fetal monitor

Let’s Change System to BlueTooth Connection in Order to Connect to Networked Cloud Environme

nt, Using Patient Own Smart-Phone.

However

That’s not Too Easy.

Today Almost of Noble Existences have Escaped Up To Beyond The Cloud -----

システム自体はとりあえず他人のふんどしで字義通り快調に動き始めたが、厄介な問題が「いくつか」発覚。

送信側全体を再検討しなければならなくなった原因が、先ずもって、これ、

瞬時「大食漢」問題

Instantaneous HIGH Power Drain Syndrome

どんな高邁な電子機器も実は狐狸同様にエサ頂戴が本音本職 -----

Let Me Eat First !!

この瞬時大食漢のせいでこれまでの設計の電池電源が使えない！

Bluetooth transmitter needs HIGH power drain instantaneously on Start-Up and Pairing phase.

Another Syndrome/Problem/Issue

Exclusive or Restrictive Hand Shake* Protocols, Versions (Generations), Styles (Profiles) Acro

ss Blue-Tooth Systems All-Over

(*with local language, “pairing” )

現状で、電気的には正しく動いているのに BlueTooth通信系が「任意のデバイス間」ではハンドシェーク（ペアリングという「方言」で呼ばれる）してくれない。

We need at least 3 level software for our own development

(1), (2) underway, (3) basically done (now on service)

Why Bluetooth?Today, basic hardware and communication firmware are equipped as a standard, in almost of smart-phones a

nd similar PDAs in market.

Bring (use) your own device (BOD), OK

Issues can be focused on upper level and bottom level software, firmware, application developments.

上下両端のアプリと組み込みソフトが開発の本題

必要な吊しの部品は全て中国や北欧から買える（残念ながら米国や日本からではなかった）

However of HoweverWe still have many many issues to be solved or overco

me (or skip or neglect -----)

（追ってまた説明します）

Continued（ to next ISOB meeting）

Continued to Next ISOB Meeting

Thanks for Attention