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US 2017/0361011 A1Published application
Medical reservoirs with variable-elevation drop tubes
AssigneeTerumo Cardiovascular Systems Corporation
InventorsGregory Peter Muennich, Michael Washko, Timothy John Canatella
Life of this patent
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Abstract
Devices and methods for enhancing the operations of fluid systems are provided. For example, this document provides variable-elevation drop tubes that are well suited for use with medical fluid reservoirs. While the variable-elevation drop tubes provided herein are described in the context of a medical fluid system, such as an extracorporeal blood flow circuit, it should be understood that the devices and methods provided herein are not limited to such contexts.
Claims19
A medical fluid reservoir comprising:
- a reservoir shell defining an interior space configured for containing a medical fluid;
- a drop tube disposed within the interior space and defining a drop tube length, the drop tube having a first end that is coupled to the reservoir shell and a second end that has freedom to move within the interior space;
- and
- a buoyant member coupled to a portion of the drop tube adjacent the second end, the drop tube length adjusting in response to movement of the buoyant member.
1 more element
A medical fluid reservoir comprising:
- a reservoir shell defining an interior space configured for containing a medical fluid, the reservoir shell also defining a fluid outflow port;
- a drop tube disposed within the interior space, the drop tube having a first end that is coupled to the reservoir shell and a second end that has freedom to move within the interior space;
- and
- a buoyant member coupled to a portion of the drop tube adjacent the second end, wherein a distance between the second end and the fluid outflow port changes in response to movement of the buoyant member.
1 more element
Dependencies are inferred from the claim text.