PO4000USC8
`PATENT
`
`IN THE CLAIMS:
`
`1. (currently amended) A catheter heart pump comprising:
`
`an elongate catheter body having a proximal end;[[,]] and a distal end configured to be
`
`advancedto a heart ventricle of a patient;
`
`an expandable sleeve coupled to the distal end, the expandable sleeve having a stored
`
`configuration in which the expandable sleeve is advanced to the heart, and an expanded
`
`configuration, and further comprising a distal inlet port and a proximaloutlet port;
`
`an expandable axial flow impeller disposed within the expandable sleeve between the
`
`distal inlet port and the proximal outlet port, and the expandable axial flow impeller configured
`
`to turn on a shaft when expanded to generate an axial fluid flow from the distal inlet port to the
`
`proximal outlet port without a single long, continuous, spiral blade_that is difficult to fold into a
`
`storage state; and
`
`a storage sleeve configured to house both the expandable sleeve and the expandable
`
`impeller therein_while the expandable axial flow impeller is in the storagestate.
`
`2. (currently amended) The catheter heart pump of claim 1, wherein the axial flow
`
`impeller and the expandable sleeve are eenfieured caused to expand when urged out of the
`
`storage sleeve.
`
`3. (currently amended) The catheter heart pump of claim 1, wherein the expandable
`
`sleeve is caused to compress when drawninto the storage sleeve+s-cenfieured+oe-compressesthe
`
`4. (cancelled)
`
`5. (cancelled)
`
`
`PATENT
`
`IN THE CLAIMS:
`
`1. (currently amended) A catheter heart pump comprising:
`
`an elongate catheter body having a proximal end;[[,]] and a distal end configured to be
`
`advancedto a heart ventricle of a patient;
`
`an expandable sleeve coupled to the distal end, the expandable sleeve having a stored
`
`configuration in which the expandable sleeve is advanced to the heart, and an expanded
`
`configuration, and further comprising a distal inlet port and a proximaloutlet port;
`
`an expandable axial flow impeller disposed within the expandable sleeve between the
`
`distal inlet port and the proximal outlet port, and the expandable axial flow impeller configured
`
`to turn on a shaft when expanded to generate an axial fluid flow from the distal inlet port to the
`
`proximal outlet port without a single long, continuous, spiral blade_that is difficult to fold into a
`
`storage state; and
`
`a storage sleeve configured to house both the expandable sleeve and the expandable
`
`impeller therein_while the expandable axial flow impeller is in the storagestate.
`
`2. (currently amended) The catheter heart pump of claim 1, wherein the axial flow
`
`impeller and the expandable sleeve are eenfieured caused to expand when urged out of the
`
`storage sleeve.
`
`3. (currently amended) The catheter heart pump of claim 1, wherein the expandable
`
`sleeve is caused to compress when drawninto the storage sleeve+s-cenfieured+oe-compressesthe
`
`4. (cancelled)
`
`5. (cancelled)
`
`
`
`PO4000USC8
`PATENT
`
`6. (original) The catheter heart pump of claim 1, wherein the storage sleeve comprises a
`
`metaltube.
`
`7. (original) The catheter heart pump of claim 1, wherein the expandable sleeve defines a
`
`first diameter and the storage sleeve defines a second diameterthat is less than or equal to half
`
`the first diameter.
`
`8.
`
`(previously presented) The catheter heart pump of claim 1, wherein the expandable
`
`axial flow impeller includes at least two blade rows arranged in sequence along a length
`
`direction of the impeller.
`
`9.
`
`(previously presented) The catheter heart pump of claim 1, wherein the expandable
`
`sleeve includes a metal or polymer mesh.
`
`10. (currently amended) A catheter heart pump comprising:
`
`an elongate catheter body having a proximal end, and a distal end configured to be
`
`advancedto a heart of a patient;
`
`an expandable sleeve coupled to the distal end, the expandable sleeve having a stored
`
`configuration in which the expandable sleeve is advanced to the heart, and an expanded
`
`configuration, and further comprising a distal inlet port and a proximaloutlet port;
`
`an expandable impeller configured to be disposed within the expandable sleeve between
`
`the distal inlet port and the proximal outlet port when in the expanded configuration,-and the
`
`expandable impeller configured to turn on a shaft to generate a fluid flow from the distal inlet
`
`port to the proximal outlet port and the expandable impeller configured as an axial flow impeller
`
`including multiple rows of foldable impeller blades to ease a bending of the impeller blades in a
`
`stored position relative to an expandable impeller having a single long, continuous, spiral blade;
`
`and
`
`
`
`a storage sleeve configured to house both the expandable sleeve and the expandable
`
`impeller therein;
`
`wherein the impeller and the expandable sleeve are configured caused to expand when
`
`PO4000USC8
`PATENT
`
`urged out of the storage sleeve.
`
`11. (cancelled)
`
`12. (cancelled)
`
`13.
`
`(previously presented) The catheter heart pump of claim 10, wherein the expandable
`
`sleeve includes a metal or polymer mesh.
`
`14. (currently amended) A catheter heart pump comprising:
`
`an elongate catheter body having a proximal end, and a distal end configured to be
`
`advancedto a heart of a patient;
`
`an expandable sleeve coupled to the distal end, the expandable sleeve having a stored
`
`configuration in which the expandable sleeve is advanced to the heart, and an expanded
`
`configuration, and further comprising a distal inlet port and a proximaloutlet port;
`
`an expandable axial flow impeller configured to be disposed within the expandable sleeve
`
`between the distal inlet port and the proximal outlet port when in the expanded configuration, the
`
`expandable axial flow impeller including multiple rows of flexible foldable impeller blades
`
`configured to turn on a shaft to generate a fluid flow from the distal inlet port to the proximal
`
`outlet port_when expanded; and
`
`a storage sleeve configured to house both the expandable sleeve and the expandable
`
`impeller therein.
`
`
`
`PO4000USC8
`PATENT
`
`15.
`
`(previously presented) The catheter heart pump of claim 14, wherein the axial flow
`
`impeller does not include a long continuous long, continuous, spiral blade that is relatively more
`
`difficult to fold than the multiple rows of flexible impeller blades.
`
`16.
`
`(currently amended) The catheter heart pump of claim 14, wherein the impeller and
`
`the expandable sleeve are confisured caused to expand whenurgedout of the storage sleeve.
`
`17.
`
`(previously presented) The catheter heart pump of claim 14, wherein the expandable
`
`sleeve includes a metal or polymer mesh.
`
`
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