Modular implantable medical pump
AssigneeThoratec Corporation
InventorsJustin Aron Callaway, Peter Soderholm
Life of this patent
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Abstract
An implantable medical pump system can include a blood pump comprising a pump housing defining a passage therethrough and a rotor within the passage. The blood pump further includes one or more elements at least partially contained within the housing adapted to actuate the rotor to drive fluid though the passage. The pump housing includes at least one coupling feature. The system further includes an inflow cannula defining a lumen therethrough. The inflow cannula is adapted to be mechanically coupled to the at least one coupling feature.
Claims20
An implantable medical pump system, comprising:
- a centrifugal blood pump comprising a pump housing defining a passage therethrough and a rotor within the passage, the pump housing at least partially containing one or more elements configured to actuate the rotor to drive fluid through the passage, the pump housing comprising at least one coupling feature;
- and
- a plurality of differing inflow cannulas, each inflow cannula of the plurality defining a lumen therethrough and being configured for alternate modular attachment to the at least one coupling feature.
An implantable medical pump system, comprising:
- a centrifugal pump housing defining a passage therethrough and a rotor at least partially disposed in the passage in a rotor well, the pump housing at least partially containing one or more elements configured to actuate the rotor to drive fluid through the passage;
- and
- an inflow cannula that is removably attachable to the pump housing by at least one coupling feature of the housing, the inflow cannula having a lumen defined through the inflow cannula that extends to the rotor well when the inflow cannula is attached to the pump housing by the at the least one coupling feature, the inner surface of the lumen having a textured blood-contacting surface.
An implantable medical pump system, comprising:
- a blood pump comprising a pump housing defining a passage therethrough and a rotor within the passage, the pump housing at least partially containing one or more elements configured to actuate the rotor to drive fluid through the passage, the pump housing comprising at least one coupling feature;
- a first inflow cannula defining a lumen therethrough and configured to be reversibly attached to the at least one coupling feature, wherein the first inflow cannula comprises a first region along the lumen having a textured blood-contacting surface;
- and
- a second inflow cannula defining a lumen therethrough having a substantially equivalent flow geometry as the lumen of the first inflow cannula, wherein the second inflow cannula comprises a smooth surface in a second region corresponding to the first region.
Dependencies are inferred from the claim text.