Wednesday 26 July 2017

NECESSITY OF UNIFORM ACOUSTIC LAYER ON ULTRASOUND PROBES
WHAT IS AN ACOUSTIC LAYER ?????

  • It is a gray (other colors also) colored part looking like rubber attached to the tip of the ultrasound probe.
  • It is the intermediate material between the piezoelectric material and the object.
  • Also called acoustic lens and matching layer (for some probes).
  • It is designed to have adequate acoustic impedance value using a combination of different resins and is deposited uniformly on the tip of the probe. 
  • The suggested membrane thickness is 0.0002 inches


WHAT ARE THE FUNCTIONS OF AN ACOUSTIC LAYER?

  • Maintain the acoustic impedance between the piezoelectric material and the object.
  • Prevent the ultrasound wave from spreading and focused them in a slice direction to improve the resolution (Beam focusing). 
  • Act as protection barrier for piezoelectric crystals.



WHAT HAPPENS IF THE LAYER IS NOT UNIFORM ????

  • Poor Beam focusing : If the layer is not uniform over the surface then the transmitted ultrasound wave get spread over the plane which will lead to decrease in resolution.
  • Impedance mismatch : Changes in thickness will create impedance difference
  • It devastatingly lengthens the ultrasound wave and ring down time. 



US IMAGE OF URINARY BLADDER BY A NON-UNIFORMLY LAYERED  PROBE

US IMAGE OF URINARY BLADDER BY UNIFORMLY LAYERED  PROBE
To know more about the acoustic lens and lens replacement call  9847069684

Monday 17 July 2017

SOME LEADING ULTRASOUND PROBE MANUFACTURES








COMPANY NAME LOCATION     PRODUCTS

  • BLATEK

    USA

ALL ULTRASOUND PROBES

  • AMERICAN MEDICAL DESIGN(AMD)
    USA PHASED ARRAY, MECHANICAL SCAN SYSTEM

  • SOUND TECHNOLOGIES INC

    USA
MEDICAL ULTRASOUND PROBES

  • IMASONIC SAS

   FRANCE

ULTRASOUND PROBES

  • SONAXIS

   GERMANY

ULTRASOUND TRANSDUCER

  • PROSONIC

   KOREA

ULTRASOUND TRANSDUCERS

  • VERMON

   FRANCE

ULTRASOUND TRANSDUCERS

  • ZONARE MEDICAL SYSTEM

   CANADA
MEDICAL ULTRASOUND PROBES

  • FRAUNHOFER IBMT

   SAARLAND
MEDICAL AND TECHNICAL ULTRASOUND TRANSDUCERS

  • NDT

   JAPAN
ALL ULTRASOUND TRANSDUCERS
  • SOINVATE
   USA FINGER MOUNTED MEDICAL ULTRASOUND TRANSDUCERS

  • PARALLEL IMAGING(GE)
 
MEDICAL ULTRASOUND PROBES

  • TELEMED ULTRASOUND SYTEMS
   USA MEDICAL ULTRASOUND PROBES

  • SAMSUNG MEDISON CO. LTD

   USA

MEDICAL ULTRASOUND PROBES

  • CARE STREAM KODAK HEALTH
   USA MEDICAL ULTRASOUND PROBES

  • SONOSITE

   USA

MEDICAL ULTRASOUND PROBES

  • ESAOTE

   ITALY

MEDICAL ULTRASOUND PROBES
  • LABORIE
   CANADA
BLADDER SCANNERS,TRANSVAGINAL,TRANSECTRAL PROBES
  • SONOWAND
   NORWAY 3D NEURO NAVIGATION SYSTEMS

  • MEDITECH 

   USA

MEDICAL ULTRASOUND PROBES

  • BROAD SOUND

   TAIWAN

MEDICAL ULTRASOUND PROBES

  • KEIY NDT SUPPLY CO

   TAIWAN

MEDICAL ULTRASOUND PROBES

  • WELLD

   CHINA

MEDICAL ULTRASOUND PROBES

  • SIUI ULTRASOUND

   CHINA

MEDICAL ULTRASOUND PROBES

  • SHENCHAO

   CHINA

MEDICAL ULTRASOUND PROBES

Monday 10 July 2017

 MATRIX ARRAY PROBES

WHAT IS A  MATRIX ARRAY PROBE ?????

2D Matrix array is a new technology for the performance of 3D and 4D ultrasonography. It has a 2-dimensional arrangements of transducer elements like squares on a chessboard. This allows having control over the sound beams in 2 perpendicular angles with that one can steer and focus the sound beam in a whole volume of interest.

STRUCTURE OF THE PROBE 

Below figure shows the structure of a 2D matrix probe.




  1. Transducer arrays : - Large number of piezoelectric materials arranged in an array manner (Patches)
  2. Integrated circuit units :- To control the transmitted and received signals
  3. Inter connection :- Electrical Connections with in the probe

HOW IT WORKS ????

These type probes allow direct volume scanning by electronically interrogation of a region of interest and acquisition of a pyramidal volume of ultrasound data at the rate of 24 volume with 3D/4D ultrasonography. The matrix arrangement of the elements allows their phasic firing produce an ultrasound beam that can be steer in axial,lateral and elevation directions in order to acquire the volumetric data set. Then the signals from each arrays are summed in order to reduce the number of digital lines in the coaxial cable.

BEAM FORMATION IN A MATRIX ARRAY PROBE

APPLICATIONS
  • Used in obstetrics for the evaluation of fetal heart
  • Cardiac and Abdominal Evaluation
SOME MATRIX ARRAY PROBES
  • GE M4S
  • PHILIPS X7-2t
  • SEIMENS 4Z1C
  • GE 6TV
To know more details about matrix array probes call 9847069684

Monday 3 July 2017

AUREON-A NEW PROBE TESTING DEVICE



FEATURES

  • Introduced by ACERTARA.
  • Easy to use portable device.
  • Next generation probe testing device of Firstcall
  • It directly visualize the sound energy emanating from the probe's aperture that allows the quick and accurate diagnosis of the probe; that is it measures the acoustic pressure at the probe head.
  • It test the probe as they are connected to the host ultrasound system.
  • It can be used for testing any ultrasound systems and probes.
  • It do not need any external adapters for testing purpose. 
  • It is designed to test all types of probes ; especially 2D matrix probes having large number of elements.
  • It easily detect the dead elements and other common probe failures with high speed and accuracy.

 
An AUREON generated Ultrasound probe testing report

To know more about the device click here

WHEN WE NEED TO REPAIR THE PROBE ???? Many of the probe damages are repairable at initial state. But in many cases the Practitio...