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Porti System
Stationary & Ambulatory System
for EEG or Polysomnography
Versatile, scalable, unsurpassed
signal quality
The
Porti is a multi-channel ambulatory and stationary system for
physiological research. The Porti can have unipolar
electrophysiological inputs (ExG), bipolar electro-physiological
inputs (BIP) and auxiliary inputs (AUX). The unipolar
electro-physiological inputs are configured as a reference
amplifier: all channels are amplified against the average of all
connected inputs. Using these channels, signals like: EEG, EMG,
ECG, EOG, EGG etc. can be measured. The bipolar
electro-physiological inputs are used to measure two
physiological signals differentially to each other. Signals like
ECG, EMG or EOG can be measured this way. The auxiliary inputs
can be used for measuring sensor signals like temperature, pH,
respiration, movements, force, angle, etc. Each of these
channels has a +5V and -5V output in order to use active sensors
or sensor modules. For the measurement of oxygen saturation a
special serial input is available. A digital trigger input can
also be included.
The Porti system can be equipped having
different number of input channels. Porti's with 8, 16, 24 and
32 channels are available.
The Porti can be used for both stationary as
well as ambulatory measurements. In stationary setup an external
power supply, which plugs into the mains socket, powers the
Porti. The Porti is connected to a PC by means of a
bi-directional glass fiber. It is also possible to use the
built-in BlueTooth telemetry to send the data directly to a PC,
a PDA or a mobile phone. Please note that the bandwidth may be
limited when using the telemetry option. When the Porti is used
ambulatory, it is always powered by batteries. Measured data is
written to a flash disk. After a recording is ended a PC or
notebook reads out the memory card, making the measurement data
available for further analysis.
The design of the Porti integrates the true DC
reference amplifier. The active shielding guarantees optimal
signal quality, no mains or other interference and complete
absence of movement artifacts. Since the system includes no
hardware filtering, all amplifier channels are identical and can
be used for any desired signal.
The Porti can be carried in a pouch on the
subject's belt and is powered by 6 or 12 AA batteries in
ambulatory mode.
>>Download Porti Brochure
 | no movement artifacts |
| from DC to maximum sample frequency |
| up to 32 channels front-end |
| digital input for SpO2 |
| 24 hours recording |
| up to 1 Gbyte internal storage |
| Bluetooth® telemetry |
| PCMCIA slot for flash disk |
| Battery compartment for 6 or 12x AA batteries |
| Maximum sample rate 2000 or 2048 Hz |
Included accessories:
| Optical fiber 10m |
| FUSBI Fiber-USB converter |
| Medical power supply |
| Suitcase |
| Carrying bag |
| Drivers for Windows Xp and Vista 32 bits |
| English manual |
| CE- certification |
| 2x patient ground cable 1,5m/each |
Product Specifications:
|
CE0044:
This device meets all the requirements of the MDD
(93/42/EEC) MDD Classification IIa (rule 10) |
|
Applied standards: IEC 60601-1:1988 + A1:1991 + A2:1995 : Medical electrical equipment - Part 1: General requirements for safety
IEC 60601-1-2:2001 : Medical electrical equipment - Part 1-2: Electromagnetic compatibility |
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Internal Power Supply:
| Batteries: 6 or 12 x AA type rechargeable NiCd or NiMH
1.2V or disposable alkaline 1.5V |
| Battery low indication level: 6.2 V ± 0.1V |
| Battery empty shut down level: 5.9 V ± 0.1V |
Unipolar ExG inputs (EEG, ECG, EOG, EMG etc.):
| Noise: < 2 µVpp (@ Fs = 128 Hz) |
| Gain: 20 x |
| Input signal difference: < 0.15 V |
| Input common mode range: -2V - +2V |
| Input impedance: > 1012 W |
| CMRR: > 100 dB |
| Connector: micro coax, active shielding |
Bipolar ExG inputs (EEG, ECG, EOG, EMG etc.):
| Noise: < 2 µVpp (@ Fs = 128 Hz) |
| Gain: 20 x |
| Input signal difference: < 0.15 V |
| Input common mode range: -2V - +2V |
| Input impedance: > 1012 W |
| CMRR: > 100 dB |
| Connector: 4 pin BINDER 719 series |
AUX inputs
| Noise: < 20 µV pp (@ Fs = 128 Hz) |
| Gain: 1 x |
| Input signal range (diff.): -3V - +3V |
| Input common mode range: -4V - +4V |
| Input impedance: > 1010 W |
| CMRR: > 70 dB |
| Output voltage: + 5V, -5V, max 5mA per channel, or 40 mA
for all channels together |
| Connector: 5 pin BINDER 719 series |
Sampling:
| Resolution: 22 bits, ExG 71.526 nV per bit, AUX 1.4305
µV per bit |
| Sample frequency (Fs):
| 2048 Hz, 1024 Hz, 512 Hz, 256 Hz, 128 Hz or: |
| 2000 Hz. 1000 Hz, 500 Hz, 250 Hz, 125 Hz or: |
| 1600 Hz, 800 Hz, 400 Hz, 200 Hz, 100 Hz |
|
Filtering/gain:
| Gain: ExG 20 x, fixed (= 50 mV/V),
| BIP 20 x, fixed (= 50 mV/V), |
| AUX 1 x, fixed (= 1 V/V) |
|
| High pass: none |
| Low pass: digital FIR filter in ADC, cutoff frequency =
0.27 * sample frequency |
Bluetooth communication:
| Bluetooth: 1.1 class 2 |
| Used profile: Serial port profile |
| Line of sight range: > 10 meter |
| Baud rate: 230400 bps |
Fiber communication:
| Bit rate: 7.168 Mbit/s |
| Max supported sample rate: 2048 Hz |
| Fiber length: up to 100m |
| Required interface: FUSBI, requires USB1.1 or USB2.0
port on PC |
Possible configurations (other
configurations on request)
| Number of channels |
Number of unipolar channels |
Number of bipolar channels |
Number of AUX channels |
Saturation input available |
Housing size |
| 8 |
8 |
- |
- |
- |
Small |
| 8 |
- |
8 |
- |
- |
Small |
| 8 |
- |
- |
8 |
- |
Small |
| 16 |
16 |
- |
- |
- |
Small |
| 16 |
- |
16 |
- |
- |
Small |
| 16 |
- |
- |
16 |
- |
Small |
| 16 |
8 |
4 |
4 |
- |
Small |
| 16 |
8 |
4 |
3 |
yes |
Small |
| 16 |
8 |
- |
8 |
- |
Small |
| 16 |
- |
8 |
8 |
- |
Small |
| 16 |
- |
8 |
7 |
yes |
Small |
| 24 |
24 |
- |
- |
- |
Large |
| 24 |
- |
16 |
8 |
- |
Large |
| 32 |
32 |
- |
- |
- |
Large |
| 32 |
- |
24 |
8 |
- |
Large |
| 32 |
- |
24 |
7 |
yes |
Large |
| 32 |
24 |
4 |
4 |
- |
Large |
| 32 |
24 |
4 |
3 |
yes |
Large |
|
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Ordering Instructions -
Upon receiving your order, a
customer service representative will contact you
to confirm the desired configuration.
| # |
Description |
|
Price
($US) |
Quantity |
|
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|
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| Porti-8-2000 |
8 Channels Porti Ambulatory / Stationary System Max. samples
rate: 2000 Hz
|
|
$11,470 |
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| Porti-8-2048 |
8 Channels Porti Ambulatory / Stationary System
Max. samples rate: 2048 Hz |
|
$11,470 |
|
| Porti-16-2000 |
16 Channels Porti Ambulatory / Stationary System Max. samples
rate: 2000 Hz
|
|
$13,350 |
|
| Porti-16-2048 |
16 Channels Porti Ambulatory / Stationary System
Max. samples rate: 2048 Hz |
|
$13,350 |
|
| Porti-24-2000 |
24 Channels Porti Ambulatory / Stationary System Max. samples
rate: 2000 Hz
|
|
$15,700 |
|
| Porti-24-2048 |
24 Channels Porti Ambulatory / Stationary System
Max. samples rate: 2048 Hz |
|
$15,700 |
|
| Porti-32-2000 |
32 Channels Porti Ambulatory / Stationary System Max. samples
rate: 2000 Hz
|
|
$17,750 |
|
| Porti-32-2048 |
32 Channels Porti Ambulatory / Stationary System
Max. samples rate: 2048 Hz |
|
$17,750 |
|
| # |
Optional Item |
|
Price
($US) |
Quantity |
|
|
|
|
|
| Porti-trigger |
Isolated External Trigger Input |
|
$150 |
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Ordering Instructions -
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