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Related Experiment Videos

Electric power induction through an isolated intestinal pouch.

D B Melvin1, D M Brooks, R J Taliano

  • 1University of Cincinnati, College of Medicine, Department of Surgery, Ohio.

ASAIO Transactions
|July 1, 1991
PubMed
Summary
This summary is machine-generated.

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A novel transintegumental power transformer, utilizing an isolated intestinal pouch, shows promise for improved heat dissipation and comfort over transcutaneous devices. Acute canine trials indicate feasibility for future long-term implantation studies.

Area of Science:

  • Biomedical Engineering
  • Implantable Devices

Background:

  • Transcutaneous power transfer systems face limitations in heat dissipation and patient comfort.
  • Developing advanced implantable power solutions is crucial for medical devices.

Purpose of the Study:

  • To evaluate the feasibility and performance of a novel transintegumental power transformer.
  • To assess heat dissipation and temperature changes associated with the device.

Main Methods:

  • A transintegumental power transformer was designed using an isolated intestinal pouch to house primary and secondary coils.
  • The device was acutely tested in 13 dogs, with iterative adjustments to geometry and insulation.
  • Power delivery up to 14.1 W was achieved, and temperature was monitored using multiple thermistors.

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Main Results:

  • Temperature elevations were significantly correlated with power delivery levels (Group A: <0.096°C, Group B: <0.468°C, Group C: <0.876°C).
  • Statistical analysis confirmed significant differences in temperature increases between power groups (p < 0.001 for A vs. B; p < 0.05 for B vs. C).
  • The device successfully delivered up to 14.1 W over extended periods (90-395 min).

Conclusions:

  • The transintegumental power transformer concept is feasible.
  • The device demonstrates potential for superior heat dissipation and comfort compared to transcutaneous alternatives.
  • Further long-term implantation studies are warranted to validate its clinical utility.