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PIROP - Ophthalmic Scanner

PIROP - Ophthalmic Scanner

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PIROP - state-of-the-art ophthalmic ultrasonic device for  Biometry , Visualization and Pachymetry of eyeballs   (A+B+P Scan).

 

A-SCAN - Ocular Lens biometrics

Digital ‘A-scan’  tool for ophthalmology, biometry and lens power calculation for intra-ocular implants.

 

B-SCAN

Modern  ‘B-scan’  tool for ophthalmology, imaging of interior of an eyeball, retina, optical nerve ...

 

PACHYMETER - Ocular Cornea biometrics

Up-to-date ultrasonic pachymeter (corneal thickness biometrics) with a very high sampling frequency (400MHz)- a significant increase in measurement accuracy.


 

PIROP user’s interface based on touch screen technology makes operation easy and user-friendly. The touch screen can be also operated not only with fingers, but also using the enclosed stylus to keep it clean.

SPECIFICATIONS

PACHYMETER

Quick measurements of thickness for all corneal  types

- measurement of thickness at arbitrarily selected points of the corneal surface

- automatic and manual measurements

- calculation of the mean; standard deviation of the measured thickness

- ability for rejecting uncorrected  measurements

Very high level of accuracy and repeatability of all measurements:

- sophisticated algorithms  for the accuracy improvement 
- very high frequency for measuring purpose- 400 MHz

- high averaging ratio - 512 automatic measurements cycles.  

Intra-ocular pressure (IOP) calculations with  measuring  and/or manual correction

• Five IOP correction formulas : (Kohlhas/Shah, Herndon/ Doughty, Whitacre et al., Ehlers et al., custom - own)

BIAS percentage deviation of the measured thickness from 60% to 130%

TEST function for automatic checking the correctness of operation (without using external phantoms or patterns)


SPECIFICATIONS:

-  20 MHz operating frequency of the probe

-  400 MHz sampling rate

-  default sound velocity - 1640 m/s (adjustment range from 1400 to 2000 m/s)

-  measurement  range from 250 μm to 1100 μm 

-  measuring accuracy <  ± 2 μm

-  resolution 1 μm

-  nine maps of corneal thickness with the number of points:

    1, 5, 9, 13, 21, 25, 1 MULTI, 5 MULTI, 9 MULTI

A-SCAN


  • Complete and quick biometry :
  -   eye  axial length /AXL/,  
  -   anterior chamber depth /AC/,
  -   lens thickness /LENS/,
  -   vitreous length /VITR/
  • Measurement of all eye types: 

    normal,  cataract,  dense cataract, aphakic,silicone oil vitreous, pseudoaphakic  /PMMA, ACRYLATE, SILICONE/

  • IOL six  formulas:

      SRK II, SRK T, Holladay, Hoffer-Q, Binkhorst II, Haggis

  • Post refractive formulas :

        Double-K SRKT,  Latkany / Flat-K SRKT/, Latkany /avg-K SRKT/, Masket

  • Contact and immersion methods
  • Automatic control of measurement scatters (with manual correction)
  • Calculations of means and standard deviations
  • Automatic TGC adjustment; GAIN adjustment up to 110 dB
  • Memory of 20 scans with measurements for further analysis
  • Probe with central light beam for correct eye positioning
  • Customizable for 9 users,  10 profiles for each.
  • Adjusting  and test via attached calibrator.

 

SPECIFICATIONS:

 -  probe frequency - 12 MHz

 -  range of scan 40 mm

 -  clinical resolution   0.1 mm

 -  electronic resolution  –/+ 0.01 mm


 

B-SCAN


  • Probe frequency - 12/14 MHz
  • Scanning angle  - 55ᵒͦ
  • Range of scan 40 - 60 mm
  • Gain/dymamics up to 110dB / 90dB
  • 256 Levels Gray Scale
  • Axial clinical resolution  - 0.12 mm
  • Lateral clinical resolution -  0.3 mm
  • Display modes : B, B+A, B+B (left/right eye)
  • A-mode for selected line (in Run and Freeze modes)
  • Digital Gain for Freeze mode
  • Image processing (sharp, smooth, brightness etc.)
  • Measurements and calculation (2 distances, area, volume)
  • Ultrasound velocity correction
  • Composite vido output for videoprinter - option.

GENERAL PROPERTIES

  • Touch Screen

    - easy, ergonomic and user-friendly operation via displayed menu

    - virtual keyboard for entering patient data, etc.

  • Color LCD 5.7” display, 640x480 pixel
  • Nine (9) user profiles
  • Recording of images in external USB-Pendrive memory.
  • External thermal small printer
  • Composite-video output PAL (option)
  • Easy firmware upgrade via USB port

POWER SUPPLY

Power supply from external  AC/DC power adapter:

-  input:100-230V AC 50/60Hz /  max 0.7A

-  output:   +12V  DC / 2 A 

Power consumption (12 DC supply) - ca 11 W

WEIGHT AND DIMENSIONS

• weight of the device: 0,84 kg

• dimensions: 199 x 154 x 84 mm

Projekt i wykonanie: design83