Fluid-Driven Mechanical Ventilator with Accumulator
Summary
The USPTO published patent application US20260091187A1 for a fluid-driven mechanical ventilator system with an accumulator featuring oscillating flow control. The invention, filed by inventor David A. Dzioba (Application 19342550), includes a bi-directional flow controller, respiratory interface, and displaceable diaphragm chamber design for ventilation delivery.
What changed
The USPTO published a patent application (US20260091187A1) for a mechanical ventilator system comprising an oscillating flow controller, respiratory interface, and dual-chamber accumulator separated by a displaceable diaphragm with biasing element. The accumulator transitions between two states: drawing breathing air into the second chamber during expansion and forcing air to the respiratory interface during compression. The application (19342550) was filed September 27, 2025, and published April 2, 2026, under CPC classifications A61M 16/0075, A61M 16/0003, and A61M 16/208.
Patent applications do not impose compliance obligations or deadlines. Medical device manufacturers and healthcare technology companies reviewing this publication should note it represents a prior art claim and does not grant enforceable rights. No regulatory response is required from affected parties at this stage.
Archived snapshot
Apr 2, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
FLUID-DRIVEN MECHANICAL VENTILATOR WITH ACCUMULATOR
Application US20260091187A1 Kind: A1 Apr 02, 2026
Inventors
David A. DZIOBA
Abstract
A mechanical ventilator includes an oscillating flow controller, a respiratory interface, and an accumulator having a first variable volume chamber fluidly coupled to a bi-directional fluid port of the flow control valve, a second variable volume chamber fluidly coupled to the respiratory interface, a displaceable diaphragm fluidly separating the first variable volume chamber from the second variable volume chamber, and a biasing element configured to bias the diaphragm in the direction of the first variable volume chamber. In use, the oscillating flow controller provides an oscillating fluid output to the accumulator, thereby causing the accumulator to oscillate between first and second states, wherein the accumulator draws breathing air into the second variable volume chamber when transitioning from the second state to the first state, and wherein the accumulator forces breathing air from the second variable volume chamber to the respiratory interface when transitioning from the first state to the second state.
CPC Classifications
A61M 16/0075 A61M 16/0003 A61M 16/208
Filing Date
2025-09-27
Application No.
19342550
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