Granted Patent B2

US 12,736,054 · App. 18/781,873 · Granted Sep 15, 2026

Inventors: Sascha Gross-Hardt (Aachen, DE); Tim Kaufmann (Aachen, DE); William L. Clifton (Houston, TX); Benjamin A. Hertzog (Houston, TX); Jason J. Heuring (Houston, TX)

Assignee: Procyrion, Inc.

F04D3/02A61M60/135A61M60/178A61M60/205A61M60/237A61M60/422A61M60/806A61M60/81A61M60/857F04D3/005F04D13/02F04D13/021F04D29/181F04D29/528F04D29/548A61F2002/068F05D2240/303F05D2250/52

Abstract

Claims (26)

1 . A blood pump having a central axis and comprising:

a shroud comprising an inlet for incoming blood flow, an outlet for outgoing blood flow, a tubular body between the inlet and outlet, and a plurality of pillars extending continuously and proximally from the tubular body non-parallel to the central axis, the shroud comprising an inner circumferential surface at least partially defined by the tubular body and the plurality of pillars, the inner circumferential surface and an opposite outer circumferential surface being spaced apart by a thickness of the shroud, each pillar extending between a first end connected with the tubular body and a second end, wherein at least a portion of the pillar between the first and second ends is spaced apart from the impeller and the proximal body portion by a gap;

an impeller having a blade disposed within the tubular body of the shroud and extending generally along the central axis, the inner circumferential surface of the shroud facing the impeller, the thickness of the shroud being less than a length of the blade;

a body extending proximally from the impeller, the body comprising an outer surface having a first portion angled relative to the central axis and a second portion generally parallel to the central axis, at least part of the first portion aligned with the outlet along the central axis.

2 . The blood pump of claim 1 , wherein the body comprises a motor, the motor configured to impart rotation to the impeller.

3 . The blood pump of claim 2 , wherein the motor comprises a motor body and a stator, the stator disposed between the impeller and the motor body.

4 . The blood pump of claim 3 , wherein at least part of the second portion is aligned with the outlet along the central axis.

5 . The blood pump of claim 3 , wherein a first pillar of the plurality of pillars has a first end coupled with a proximal portion of the tubular body at the outlet of the shroud.

6 . The pump of claim 5 , wherein the second end of the first pillar is connected to a portion of the shroud proximal the stator.

7 . The pump of claim 5 , wherein the plurality of pillars are disposed about an outer periphery of the impeller, the plurality of pillars comprising the first pillar.

8 . The blood pump of claim 1 , wherein the impeller comprises a plurality of blades including the blade.

9 . The blood pump of claim 1 , wherein a size of the inlet is larger than a size of the outlet.

10 . The blood pump of claim 1 , further comprising a strut extending distally and radially outwardly of the inlet of the shroud non-parallel to the central axis.

11 . The blood pump of claim 10 , wherein the strut comprises an angled distal end portion, and wherein the angled distal end portion comprises a bend at a distal-most end of the strut.

12 . The blood pump of claim 10 , further comprising a plurality of struts including the strut.

13 . A blood pump having a central axis and comprising:

a shroud comprising an inlet for incoming blood flow, an outlet for outgoing blood flow, a tubular body between the inlet and outlet, and a plurality of pillars extending from the tubular body non-parallel to the central axis, the shroud comprising an inner circumferential surface at least partially defined by the tubular body and the plurality of pillars, the inner circumferential surface and an opposite outer circumferential surface being spaced apart by a thickness of the shroud, each pillar extending proximally of the tubular body along the outlet, wherein at least a portion of a length of the pillar between the first and second ends is spaced apart from the impeller and the proximal body portion by a gap;

an impeller having a blade disposed within the tubular body of the shroud and extending generally along the central axis, the inner circumferential surface of the shroud facing the impeller, the thickness of the shroud being less than a length of the blade; and

a body extending proximally from the impeller, the body comprising an outer surface being disposed at or radially inwards of a straight line intersecting a distal end and a proximal end of the outer surface.

14 . The blood pump of claim 13 , wherein the body comprises a motor, the motor configured to impart rotation to the impeller.

15 . The blood pump of claim 14 , wherein the motor comprises a motor body and a stator, the stator disposed between the impeller and the motor body.

16 . The blood pump of claim 13 , wherein the impeller comprises a plurality of blades including the blade.

17 . The blood pump of claim 13 , wherein a size of the inlet is larger than a size of the outlet.

18 . The blood pump of claim 13 , further comprising a strut extending distally and radially outwardly of the inlet of the shroud non-parallel to the central axis.

19 . The blood pump of claim 18 , wherein the strut comprises an angled distal end portion, and wherein the angled distal end portion comprises a bend at a distal-most end of the strut.

20 . The blood pump of claim 18 , further comprising a plurality of struts including the strut.

Assignments (1)

Continuity (4)

References Cited (318)