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US 12,599,708 B2Granted
Peritoneal dialysis cassette
AssigneeMozarc Medical US LLC
InventorsRajkumar Vp, Rathnakara Narayana, Vikas Chitradurga Mruthyunjaya
Life of this patent
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Abstract
An example article includes a rigid member defining a plurality of fluid flow paths and a plurality of flexible tubes each defining a lumen and configured to be occluded via a pressure applied externally to the lumen and unoccluded in an absence of the externally applied pressure. Each flexible tube of the plurality of flexible tubes is configured to be fluidically connected to a flow path of the plurality of flow paths, and different fluid flow paths of the plurality of fluid flow paths are defined by occluding different flexible tubes of the plurality of flexible tubes.
Claims20
An article comprising:
- a rigid member defining a plurality of fluid flow paths;
- and
- a plurality of flexible tubes within the rigid member, each of the plurality of flexible tubes defining a lumen and configured to be occluded via a pressure applied externally to at least a portion of the lumen of a respective flexible tube of the plurality of flexible tubes within the rigid member and unoccluded in an absence of the externally applied pressure,
- wherein each flexible tube of the plurality of flexible tubes is configured to be fluidically connected within the rigid member to a fluid flow path of the plurality of fluid flow paths,
- wherein different fluid flow paths of the plurality of fluid flow paths are defined by occluding different flexible tubes of the plurality of flexible tubes.
2 more elements
A system comprising:
- a cassette comprising:
- a rigid member defining a plurality of fluid flow paths, each of the plurality of fluid flow paths including at least one fluidic connection to a fluid input or a fluid output of the rigid member;
- and
- a plurality of flexible tubes within the rigid member, each of the plurality of flexible tubes defining a lumen and configured to be occluded via a pressure applied externally to at least a portion of the lumen of a respective flexible tube of the plurality of flexible tubes within the rigid member and unoccluded in an absence of the externally applied pressure,
- wherein each flexible tube of the plurality of flexible tubes is configured to be fluidically connected to a fluid flow path of the plurality of fluid flow paths,
- wherein different fluid flow paths of the plurality of fluid flow paths are defined by occluding different flexible tubes of the plurality of flexible tubes;
- a peritoneal dialysis device comprising a plurality of actuators configured to apply the pressure externally to the plurality of flexible tubes;
- and
- control circuitry configured to selectively cause one or more actuators of the plurality of actuators to apply the pressure to or release the pressure from one or more flexible tubes of the plurality of flexible tubes.
6 more elements
A method comprising:
- selecting, via control circuitry, a fluid flow path of a plurality of fluid flow paths defined by a peritoneal dialysis cassette, the peritoneal dialysis cassette comprising:
- a rigid member defining the plurality of fluid flow paths, each fluid flow path of the plurality of fluid flow paths including at least one fluidic connection to a fluid input or a fluid output of the rigid member;
- and
- a plurality of flexible tubes within the rigid member, each of the plurality of flexible tubes defining a lumen and configured to be occluded via a pressure applied externally to at least a portion of the lumen of a respective flexible tube of the plurality of flexible tubes and unoccluded in an absence of the externally applied pressure,
- wherein each flexible tube of the plurality of flexible tubes is configured to be fluidically connected to a fluid flow path of the plurality of fluid flow paths of the rigid member,
- wherein different fluid flow paths of the plurality of fluid flow paths are defined by occluding different flexible tubes of the plurality of flexible tubes;
- and
- causing, via the control circuitry, one or more actuators to occlude at least one flexible tube of the plurality of flexible tubes to define the fluid flow path.
5 more elements
Dependencies are inferred from the claim text.