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Related Experiment Videos

Adaptive multipurpose probe fixation device for use on newborns

E Michel1, B Zernikow, H Rabe

  • 1University Children's Hospital, Neonatal Intensive Care Unit, Münster, Germany.

Ultrasound in Medicine & Biology
|January 1, 1993
PubMed
Summary

A new vacuum-molded hood device custom-fits newborn skulls for secure sensor attachment during transfontanellar Doppler monitoring. This adaptable fixation system allows simultaneous investigation of infant cerebral circulation using multiple methods.

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Area of Science:

  • Biomedical Engineering
  • Pediatric Neurology
  • Medical Device Design

Background:

  • Accurate monitoring of infant cerebral circulation is crucial for diagnosing and managing neurological conditions.
  • Existing methods for attaching monitoring sensors to infant skulls can be cumbersome, apply excessive pressure, or lack adaptability.
  • Non-invasive techniques like transfontanellar Doppler monitoring require stable and reliable probe fixation.

Purpose of the Study:

  • To detail the construction and assembly of a novel, noncommercial, hood-like probe fixation device for infant neuroimaging.
  • To present a vacuum-molding technique for creating custom-fit devices that minimize pressure on a newborn's skull.
  • To demonstrate the device's adaptability for various probe requirements and simultaneous use of different monitoring methods.

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Main Methods:

  • Construction and assembly of a hood-like probe fixation device using readily available materials.
  • Application of a vacuum technique to mold the device to the individual skull shape of newborn infants.
  • Integration of a ball-and-socket joint for flexible probe positioning and adaptation to different sensor types.
  • Design accommodating head circumferences from 22 to 38 cm, requiring a maximum of four sizes for anterior fontanelle coverage.

Main Results:

  • The device can be individually molded to the infant's skull, ensuring a secure fit with minimal pressure on sensors.
  • A limited number of device sizes effectively accommodate variations in head circumference and anterior fontanelle positioning.
  • The integrated ball-and-socket joint allows for versatile probe placement and adjustment.
  • The design facilitates the simultaneous use of multiple probes for comprehensive cerebral circulation assessment.

Conclusions:

  • The described noncommercial probe fixation device offers a customizable, comfortable, and adaptable solution for infant neuroimaging.
  • This innovative device enhances the reliability of transfontanellar Doppler monitoring and enables multi-modal investigation of infant cerebral blood flow.
  • The vacuum-molding technique and flexible design represent a significant advancement in pediatric neuromonitoring technology.