Customer requirement
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The
Telemedicine system is a total integrated system
specially made to transfer patient medical data, viz.
X-ray, CT-scan, MRI & ultrasound images, typed
notes, handwritten notes, prescription, audio video
clips and patients snap shots with lice video
conferencing between a patient and a doctor using DAMA
VSAT. |
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The
application provides complete control over DAMA (Demand
assigned multiple access) based video conferencing on
both networks, where satellite carriers provide clear
channel connectivity between externally connected
videoconference codec equipment. Videoconference
participants, coordinators or administrators are
subjected to security constraints, able to schedule/set
up conferences, view existing conference status and
participants and join or leave
conferences. |
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Conference
types and participants may be selected a new each time a
conference is scheduled, or alternatively a previously
scheduled conference may be loaded from the database and
reactivated or modified. It establishes point-to-point
clear channel bandwidth using additional SCPC
connections. Such bandwidth is typically required for
applications like videoconferencing where the video
codec requires direct 128 Kbps x 128 kbps connections as
minimum. |
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For DAMA
videoconference, a client/server based software package
is available that enables complete control of the
videoconference call types and processes directly by the
user whist also under the control of the conference
administrator. |
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Special Features:
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Automatically stores patient’s
documents in appropriate folder. |
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Accepts images from different
sources, including scanners, video devices, digital
cameras, CD-ROMs, ultrasound units and more. |
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Works with more than one document at
a time. Arrange the documents on screen to suit our
preference. |
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Imbeds an identification stamp in
each image. Special image format prevents other programs
from opening and altering the images. |
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Encrypts all data while being sent
over phone lines or the Internet. |
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Physical parameters Objectives:
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Tele-consultation (specific medical
advice from expert doctor). |
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Provides better health care to the
people. |
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Increases medical services at all
needful areas. |
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Implementation:
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Clearance to be obtained from
various agencies including local authorities. |
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Setting up of telemedicine
centers. |
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Telemedicine workstation for
consultation:
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Telemedicine center at the main
hospital. |
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Telemedicine center at district
hospitals/clinics. |
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Space to provide by the concerned
authorities. Round the clock power availability is to be
ensured. The basic need of doctors and telemedicine
technologist manning these stations shall be looked
after. Security of expensive telemedicine equipment will
need insurance by appropriate authorities. |
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All these stations will be able to
conduct real time teleconferencing and
be able to send and receive data. |
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Setting up of Telecommunication
network: |
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DAMA V-SAT to be installed at each
site. |
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Availability of necessary
preliminary infrastructure facilities like land,
building power, water etc. |
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Pre-requisite:
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Telephone line for communication |
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230v, 5 Amp power supply with
approx. 3 nos. 3 pin plug with on/off switch and fuse
protection to be provided well before the installation,
for each center. |
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A minimum 10 x 20
AC room for system installation
with: |
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Table (3 x 6
ft.). |
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2 Chairs. |
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Desks to meet patients. |
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Communication media:
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MultiStar mini hub VSAT
(Transferring end) x 1. |
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MS DAMA VSAT (Receiving end) x 3. |
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Online integrated telemedicine
system (Teleuro, Telepatho and Teleradio) x 4. |
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Medical data processing units. |
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Medical video processing units. |
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Remote medical image switching
unit. |
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Urometry. |
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Display monitor unit 1. |
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Display monitor unit 2. |
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Pen keyboard. |
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Color printer. |
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Medical image capture device. |
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Telemedicine conferencing unit. |
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Microphone .and speaker set |
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Desktop modem. |
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Telemedicine table. |
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Power distribution board. |
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Telemedicine license software. |
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Telemedicine chair. |
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Operating manual set. |
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Technical manual set. |
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Printers stationary. |
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Service bag. |
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Microscope including camera. |
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12 lead ECG machine (optional). |
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Portable X-ray unit (optional). |
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X-ray viewer box (optional). |
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Mobile 100mA film less DICOM
compatible digital x-ray machine (optional). |
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Digital camera with digital color
printer x 4. |
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Suggested solution
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The system is based on the concept
of Multi Star technology that uses the IP as platform
for the Telemedicine conference as well telephony and
Internet. |
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In a multi star configuration, one
of the remote sites is transformed into a secondary hub.
It is capable to receive the transmission of the other
remotes, and receive the DVB-S transmitted from the hub.
The secondary hub transmits a regular return channel,
and not a DVB-S signal like the primary hub. The
secondary hub is received by the primary hub. |
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The following diagram describes the
principle structure of the secondary hub: |
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Thus, communication between a
remote site and the secondary hub is done in the
following way: |
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A packet is sent from the remote
site to the destination and the secondary hub. The
response is sent to the primary hub, and then routed
through the DVB-S signal to the remote site. Total of
1.5 hops, instead of two hops in the star
configuration. |
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The following diagram describes the
data flow: |
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Equipment list for the secondary
hub:
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The following are the required
components for the secondary hub: |
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