Devices, systems, and methods for facilitating flow from the heart to a blood pump

• US 9,585,991 B2
• Filed: 10/16/2013
• Issued: 03/07/2017
• Est. Priority Date: 10/16/2012
• Status: Active Grant

• Current Assignee: SCR, Inc.
• Original Assignee: Heartware,Inc. (Medtronic Plc)
• Inventors: Spence, Paul A.
• Primary Examiner(s): Porter, Jr., Allen
• Application Number:
  US14/055,485
• Publication Number:
  US 20140107399A1
• Time in Patent Office: 1,238 Days
• Field of Search: 600/16, 600/17, 600/18
• US Class Current: 1/1
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
• CPC Class Codes: A61M 60/165 implantable in, on, or around the heart
• CPC Class Codes: A61M 60/216 including a rotating member acting on the blood, e.g. impeller
• CPC Class Codes: A61M 60/857 Implantable blood tubes
• CPC Class Codes: A61M 60/892 Active valves, i.e. actuated by an external force

Abstract

An apparatus includes a tubular member defining a lumen and a channel, and a support member. The tubular member has a connection portion configured to be coupled to an organ wall. An outer edge of the connection portion is configured to contact a first portion of an inner surface of the wall when the connection portion is in an expanded configuration such that an interior volume of the organ is in fluid communication with the lumen. The support member is movably disposed within the channel and is configured to minimize movement of the wall relative to the tubular member. An end portion of the support member is disposed within the channel when the support member is in a first configuration. The end portion of the support member configured to contact a second portion of the inner surface of the wall when the support member is in a second configuration.

Claims

1. An apparatus, comprising:

a tubular member defining a lumen therethrough, the tubular member including a connection portion configured to be coupled to a wall of a heart such that an interior volume of the heart is in fluid communication with the lumen; and

a recirculation member disposed at least partially within the lumen of the tubular member, the recirculation member defining a flow pathway therethrough such that the interior volume of the heart is in fluid communication with the flow pathway, the flow pathway configured to convey a fluid into the volume of the heart to minimize movement of the wall relative to the tubular member, the recirculation member defining a plurality of apertures arranged along a distal portion of the recirculation member such that a portion of the fluid can exit each aperture from the plurality of apertures and into the interior volume of the heart, the plurality of apertures including a first aperture and a second aperture spaced apart longitudinally from the first aperture.

2. The apparatus of claim 1, wherein the connection portion of the tubular member is configured to move from a collapsed configuration to an expanded configuration, the connection portion configured to be coupled to the wall when in its expanded configuration, a distal end of the recirculation member extending beyond a distal end of the tubular member when the connection portion is in the expanded configuration.

3. The apparatus of claim 1, wherein the recirculation member is configured to be spaced apart from an inner surface of the wall of the heart when the recirculation member is disposed within the interior volume of the heart.

4. The apparatus of claim 1, wherein at least a portion of the recirculation member is movably disposed within the lumen, an end portion of the recirculation member configured to be disposed within the lumen when the recirculation member is in a first configuration, the end portion of the recirculation member configured to be disposed outside the lumen and inside the interior volume of the heart when the recirculation member is in a second configuration.

5. The apparatus of claim 1, wherein the recirculation member defines the plurality of apertures such that a portion of the fluid can exit each aperture from the plurality of apertures having a different direction of flow within the interior volume of the heart.

6. The apparatus of claim 1, wherein the interior volume of the heart is defined by a left atrium of the heart, the wall of the heart being within the left atrium.

7. The apparatus of claim 1, further comprising:

a support member coupled to the tubular member, the support member configured to move between a first configuration and a second configuration, at least a first portion of the support member being disposed within a lumen of the recirculation member when the support member is in its second configuration, and at least a second portion of the support member extending distally from a distal end portion of the recirculation member when the support member is in its second configuration.

8. An apparatus, comprising:

a tubular member defining a lumen therethrough, the tubular member including a connection portion configured to move from a collapsed configuration to an expanded configuration, an outer edge of the connection portion configured to contact a first portion of an inner surface of a wall of a heart when the connection portion is in its expanded configuration such that an interior volume of the heart is in fluid communication with the lumen and is fluidically isolated from a volume outside of the heart, the interior volume of the heart being defined by a left atrium of the heart; and

a support member coupled to the tubular member, the support member configured to minimize movement of the wall relative to the tubular member, the support member configured to move between a first configuration and a second configuration, the support member configured to contact a second portion of the inner surface of the wall when the support member is in its second configuration, the inner surface of the wall defining in part the interior volume of the heart, the second portion of the inner surface being distal to the first portion, the first portion of the inner surface and the second portion of the inner surface each being within the left atrium.

9. The apparatus of claim 8, wherein the support member has a helical shape when in the second configuration.

10. The apparatus of claim 8, wherein the support member is a wire having a spiral shape when in the second configuration.

11. The apparatus of claim 8, wherein a portion of the support member is substantially linear when in the first configuration, the portion of the support member having a helical shape when in the second configuration.

12. The apparatus of claim 8, wherein the support member is at least partially constructed from a material formulated to promote tissue ingrowth into the support member.

13. The apparatus of claim 8, wherein:

the tubular member has a distal end portion defining an opening in fluid communication with the lumen; and

a portion of the support member is configured to contact the second portion of the inner surface of the wall when the support member is in its second configuration, the portion of the support member being disposed distal to the opening defined by the distal end portion of the tubular member when the connection portion is in its expanded configuration.

14. The apparatus of claim 8, wherein a distal end portion of the support member is configured to be inserted into a pulmonary vein.

15. The apparatus of claim 8, wherein at least a portion of the support member has a curvature corresponding to a curvature of the second portion of the inner surface of the wall.

16. The apparatus of claim 8, wherein the wall is an atrial wall.