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Related Experiment Videos

Development and initial experience with a manually controlled spring wire device ("Cordostat") to aid in difficult

M R Foley1, J Sonek, J Paraskos

  • 1Department of Obstetrics and Gynecology, Ohio State University Hospitals, Columbus.

Obstetrics and Gynecology
|March 1, 1991
PubMed
Summary

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A new instrument, the Cordostat, aids in difficult umbilical cord sampling (funipuncture) during prenatal procedures. This device stabilizes the umbilical cord for improved accuracy and feasibility in challenging cases.

Area of Science:

  • Obstetrics and Gynecology
  • Fetal Medicine
  • Medical Device Innovation

Background:

  • Umbilical cord sampling (funipuncture) is crucial for prenatal diagnosis and treatment.
  • Difficulties in funipuncture arise from factors like low amniotic fluid, placental location, and gestational age.
  • Existing methods lack sufficient stabilization for challenging cord access.

Purpose of the Study:

  • To introduce and evaluate a novel instrument, the Cordostat, designed to facilitate difficult umbilical cord sampling.
  • To assess the efficacy of the Cordostat in stabilizing the umbilical cord for intrauterine manipulation.

Main Methods:

  • Development of the Cordostat instrument, featuring a deflecting wire guide within a trochar needle.
  • Utilizing the Cordostat to coil around and stabilize a free loop of the umbilical cord.

Related Experiment Videos

  • Performing conventional funipuncture through a separate uterine puncture after cord stabilization.

    • Main Results:

    • The Cordostat was successfully used in 12 patients undergoing second-trimester induced abortion.
    • The instrument provided stabilization and allowed for intrauterine manipulation of the umbilical cord.
    • The device demonstrated potential in overcoming challenges associated with difficult funipuncture.

    Conclusions:

    • The Cordostat represents a promising new tool for improving the success rate of umbilical cord sampling in complex obstetric scenarios.
    • This instrument may enhance the safety and feasibility of prenatal diagnostic and therapeutic procedures involving the umbilical cord.