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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) - modified version.

 

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

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 110dB
  • Memory of 20 scans with measurements for further analysis
  • Probe with central light beam for correct eye positioning
  • Customizable for 10 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

 

PACHYMETER

  • Quick measurements of thickness for all corneal  types

  - automatic and manual measurements

  - measurement of thickness at arbitrarily selected points

  - calculation of mean from measurements

  - 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

-  velocity range from 1400 to 2000 m/s

-  measurement  range from 220 μm to 1100 μm 

-  measuring accuracy <  ± 2 μm

-  resolution 1 μm

-  nine corneal thickness maps with number of points:

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

B-SCAN


  • Probe frequency - 12/15 MHz
  • Scanning angle  - 55ᵒͦ
  • Gray: 256
  • Range of scan 20..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
  • A-mode for selected line (in Run and Freeze modes)
  • Dynamic Range Correction
  • Image cache memory  M1..M4  independent for right and left eyes
  • Zoom function (x2) in Run and Freeze modes
  • Digital Gain Correction in  Freeze mode
  • Cineloop function (about 6 second) independent for left/right eyes
  • Distances  measurements with ultrasound velocity correction
  • Area and angle measurements
  • Composite vido output for videoprinter

GENERAL PROPERTIES

  • Touch Screen

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

    - virtual keyboard for entering patient data, etc.

  • Color LCD 7” display
  • Ten (10) user profiles
  • Recording of images in internal and  USB-Pendrive memory.
  • Internal thermal small printer
  • Composite-video output PAL
  • 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 12 W

WEIGHT AND DIMENSIONS

  • Dimensions (with built-in printer): 290 x 205 x 85 mm
  • Weight (with built-in printer): 1.5 kg
Projekt i wykonanie: design83