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US 11,684,768 B2Granted
Blood pump assembly and method of use thereof
AssigneeNuPulseCV, Inc.
InventorsRobert M. Smith, Valluvan Jeevanandam
Life of this patent
Estimating the term…
Abstract
The invention provides a blood pump for use with an intravascular ventricular assist system (iVAS), as well as a method for utilizing the blood pump to treat heart failure.
Claims49
A blood pump assembly comprising:
- a balloon defining an elongated inflatable chamber, the balloon having an inflatable distal end and a proximal end, wherein the distal end is rounded and the proximal end has a cylindrical region including an opening;
- and
- an inflation tube coupled to the opening of the proximal end of the balloon via a coating layer disposed over a coupling site to affix the balloon to the inflation tube, the coating layer providing a smooth exterior profile to the coupling site so that an exterior surface of the assembly is configured to couple the balloon to the inflation tube and provide a smooth transition from the balloon to the inflation tube, and the inflation tube defining a fluid channel in fluid communication with the inflatable chamber;
- wherein, between the inflatable distal end and the proximal end, the balloon has a central region having an elongated cylindrical shape when in an inflated state, and wherein a distalmost end of the inflation tube is coupled to the cylindrical region of the proximal end of the balloon such that the balloon has a substantially flat planar shape when in an uninflated state, the substantially flat planar shape and the coating layer being configured to promote laminar flow of fluid within a blood vessel in which the balloon is implanted when the balloon is in the uninflated state.
1 more element
A blood pump assembly comprising:
- a balloon defining an elongated inflatable chamber, the balloon having a distal end and a proximal end, wherein:
- the distal end is rounded,
- the distal end and the elongated inflatable chamber are one-piece, and
- the proximal end has a cylindrical region including an opening;
- and
- an inflation tube coupled to the opening of the proximal end of the balloon via a coating layer disposed over a coupling site to affix the balloon to the inflation tube, the coating layer providing a smooth exterior profile to the coupling site so that an exterior surface of the assembly is configured to couple the balloon to the inflation tube and provide a smooth transition from the balloon to the inflation tube, and the inflation tube defining a fluid channel in fluid communication with the inflatable chamber;
- wherein, between the distal end and the proximal end, the balloon has a central region having an elongated cylindrical shape when in an inflated state, and wherein a distalmost end of the inflation tube is coupled to the cylindrical region of the proximal end of the balloon such that the balloon has a substantially flat planar shape when in an uninflated state, the substantially flat planar shape and the coating layer being configured to promote laminar flow of fluid within a blood vessel in which the balloon is implanted when the balloon is in the uninflated state.
4 more elements
A blood pump assembly comprising:
- a balloon defining an elongated inflatable chamber, the balloon having a distal end and a proximal end, wherein:
- the distal end is rounded,
- the balloon lacks an interior support member, and
- the proximal end has a cylindrical region including an opening;
- and
- an inflation tube coupled to the opening of the proximal end of the balloon via a coating layer disposed over a coupling site to affix the balloon to the inflation tube, the coating layer providing a smooth exterior profile to the coupling site so that an exterior surface of the assembly is configured to couple the balloon to the inflation tube and provide a smooth transition from the balloon to the inflation tube, and the inflation tube defining a fluid channel in fluid communication with the inflatable chamber;
- wherein, between the distal end and the proximal end, the balloon has a central region having an elongated cylindrical shape when in an inflated state, and wherein a distalmost end of the inflation tube is coupled to the cylindrical region of the proximal end of the balloon such that the balloon has a substantially flat planar shape when in an uninflated state, the substantially flat planar shape and the coating layer being configured to promote laminar flow of fluid within a blood vessel in which the balloon is implanted when the balloon is in the uninflated state.
4 more elements
A blood pump assembly comprising:
- a balloon defining an elongated inflatable chamber, the balloon having distal end and a proximal end, wherein the distal end is rounded and the proximal end has a cylindrical region including an opening;
- and
- an inflation tube coupled to the opening of the proximal end of the balloon via a coating layer disposed over a coupling site to affix the balloon to the inflation tube, the coating layer providing a smooth exterior profile to the coupling site so that an exterior surface of the assembly is configured to couple the balloon to the inflation tube and provide a smooth transition from the balloon to the inflation tube, and the inflation tube defining a fluid channel in fluid communication with the inflatable chamber;
- wherein, between the distal end and the proximal end, the balloon has a central region having an elongated cylindrical shape when in an inflated state, and wherein a distalmost end of the inflation tube is coupled to the cylindrical region of the proximal end of the balloon such that the balloon has a substantially flat planar shape when implanted in a blood vessel and in an uninflated state, the substantially flat planar shape and the coating layer being configured to promote laminar flow of fluid within the blood vessel in which the balloon is implanted when the balloon is in the uninflated state.
1 more element
Dependencies are inferred from the claim text.