Blood-gas exchange device and methods of use
Inventors
Yeheskely-Hayon, Daniella • Sender, Aviran • Rozentsveig, Angelina
Assignees
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Publication Number
US-12324877-B1
Publication Date
2025-06-10
Expiration Date
Abstract
This invention is directed to a novel blood-gas exchange device comprising a stationary blood collecting tank, and a rotating tank, such that the stationary blood collecting tank surrounds at least part of a rotating tank. The circular movement of the rotating tank channels the inserted blood to flow along the rotatable tank wall from bottom to top, forming a blood layer on the wall that directly contacts with the gas and allows gas exchange, and wherein the stationary blood collecting tank is assembled with the rotating tank in a manner that the oxygenated and/or decarbonated blood that exit from the rotating tank through said at least one exit opening is being spilled into the stationary collecting tank and gathered to flow into a tube.
Core Innovation
The invention relates to a membrane-free blood-gas exchange device that oxygenates and/or decarbonates inserted blood by directly contacting gas with blood. A stationary blood collecting tank surrounds at least part of a rotating tank and comprises a gas inlet and a gas exit, while the rotating tank comprises a gas inlet and a blood inlet.
The circular movement of the rotating tank channels inserted blood to flow along the rotatable tank wall from bottom to top, forming a blood layer on the wall. The blood layer directly contacts the gas to allow gas exchange, and oxygenated and/or decarbonated blood exits from the rotating tank through at least one blood exit opening into the stationary blood collecting tank.
The oxygenated and/or decarbonated blood is spilled into the stationary blood collecting tank and gathered to flow into a tube. The device is positioned relative to hollow-fiber membrane oxygenators that are associated with limitations such as blood trauma, inflammation, blood clotting system issues, and manufacturing dependence on fiber suppliers.
Claims Coverage
The only independent claim identified defines a blood-gas exchange device with four inventive features: a stationary blood collecting tank surrounding a motor-spun rotating tank, a rotating tank that forms a blood layer on a rotatable wall for direct gas contact, a motor configured to spin the rotating tank, and spill-and-collection into the stationary tank for delivery into a tube.
Stationary blood collecting tank surrounding a motor-spun rotating tank for gas inlet and gas exit
A stationary blood collecting tank surrounds at least part of a rotating tank and comprises at least a gas inlet, a gas exit, and a blood exit configured to allow flow of oxygenated and/or decarbonated blood out of the device into a tube.
Rotating tank forming a blood layer on a rotatable tank wall that directly contacts gas for exchange
A rotating tank comprises a gas inlet, a blood inlet, and at least one blood exit opening, and the circular movement channels inserted blood to flow along the rotatable tank wall from bottom to top, forming a blood layer that directly contacts gas and allows gas exchange.
Motor spinning the rotating tank for circular movement
A motor is configured to spin the rotating tank.
Spilling into stationary collecting tank and gathering to flow into the tube
The oxygenated and/or decarbonated blood exits from the rotating tank through the at least one exit opening, is spilled into the stationary blood collecting tank, and is gathered to flow into a tube.
The claim coverage centers on a stationary blood collecting tank and a motor-spun rotating tank that forms an upward-moving blood layer for direct gas exchange, followed by spill into the stationary tank and delivery through a tube.
Stated Advantages
Membrane-free blood-gas exchange based on direct blood-gas contact.
Designed to allow oxygenation and/or decarbonation via gas exchange.
Positioned as reducing blood trauma and pressure drops associated with hollow-fiber membrane oxygenators.
Positioned as reducing dependence on fiber suppliers associated with hollow-fiber membrane oxygenators.
Documented Applications
Extracorporeal blood oxygenation, including applications in CPB and ECMO, is described in the document context provided.
Use with other body fluids instead of blood is described as an optional aspect in embodiments.
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