Development of the PSU Child Pump

Christopher Scheib, Raymond Newswanger, Joshua Cysyk, Karl Bohnenberger, Branka Lukic, Lichong Xu, Eric Yeager, Kirby Bletcher, Patrick Leibich, Quandashia Jackson, Heidi Flory, Mindy Tillinger, William Weiss, Gerson Rosenberg, Choon Sik Jhun

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The Pennsylvania State University (PSU) Child Pump, a centrifugal continuous-flow ventricular assist device (cf-VAD), is being developed as a suitable long-term implantable device for pediatric heart failure patients between 10 and 35 kg, body surface area (BSA) of 0.5-1.2 m2, 1-11 years of age, and requiring a mean cardiac output of 1.0-3.5 L/min. In-vitro hydraulic and hemodynamic performances were evaluated on a custom mock circulatory loop with ovine blood. Normalized index of hemolysis (NIH) was evaluated under four conditions: 1) 8,300 rpm, 3.5 L/min, ΔP = 60 mm Hg, 2) 8,150 rpm, 5.1 L/min, ΔP = 20 mm Hg, 3) 8,400 rpm, 3.2 L/min, ΔP = 70 mm Hg, and 4) 9,850 rpm, 5.0 L/min, ΔP = 80 mm Hg, resulting in normalized index of hemolysis = 0.027 ± 0.013, 0.015 ± 0.006, 0.016 ± 0.008, and 0.026 ± 0.011 mg/dl, respectively. A mock fit study was conducted using a three-dimensional printed model of a 19 kg patient's thoracic cavity to compare the size of the PSU Child Pump to the HeartMate3 and the HVAD. Results indicate the PSU Child Pump will be a safer, appropriately sized device capable of providing the given patient cohort proper support while minimizing the risks of blood trauma as they wait for a transplant.

Original languageEnglish (US)
Pages (from-to)892-897
Number of pages6
JournalASAIO Journal
Volume70
Issue number10
DOIs
StatePublished - Oct 1 2024

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Bioengineering
  • Biomaterials
  • Biomedical Engineering

Fingerprint

Dive into the research topics of 'Development of the PSU Child Pump'. Together they form a unique fingerprint.

Cite this