US 12,629,509 B2Granted

Blood pump

AssigneeMagenta Medical Ltd.

InventorsEhud Schwammenthal, Yosi Tuval, Daniel Glozman, Tom Shtendel, Gad Lubinsky

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Abstract

Apparatus and methods are described including a blood pump that includes an impeller having proximal and distal end portions, a frame disposed around the impeller, and a shaft member that passes through the proximal and distal end portions of the impeller and that is configured to impart rotational motion to the impeller. The impeller defines a radially-constrained configuration in which the impeller is introduced into a subject's body and a non-radially-constrained configuration in which the impeller is configured to pump blood within the subject's body. The distal end portion of the impeller is configured to slide over the shaft member as the impeller changes from its radially-constrained configuration to its non-radially-constrained configuration. Other applications are also described.

Claims20

Dependent claims

An apparatus, comprising:

a blood pump configured to be placed inside a body of subject, the blood pump comprising:
an impeller comprising proximal and distal end portions;
a frame disposed around the impeller;
a shaft member that passes through the proximal and distal end portions of the impeller and that is configured to impart rotational motion to the impeller,
the proximal end portion of the impeller being coupled to the shaft member, such that the proximal end portion of the impeller is held in an axially-fixed position with respect to the shaft member, and
the distal end portion of the impeller not being coupled to the shaft member, such that the distal end portion is not held in an axially-fixed position with respect to the shaft member, and
the impeller defining a radially-constrained configuration in which the impeller is introduced into the subject's body and a non-radially-constrained configuration in which the impeller is configured to pump blood within the subject's body, the distal end portion of the impeller being configured to slide over the shaft member as the impeller changes from its radially-constrained configuration to its non-radially-constrained configuration.

4 more elements

An apparatus, comprising:

a blood pump configured to be placed inside a body of subject, the blood pump comprising:
an impeller comprising proximal and distal end portions;
a frame disposed around the impeller;
a shaft member that passes through the proximal and distal end portions of the impeller and that is configured to impart rotational motion to the impeller,
the distal end portion of the impeller being coupled to the shaft member, such that the distal end portion of the impeller is held in an axially-fixed position with respect to the shaft member, and
the proximal end portion of the impeller not being coupled to the shaft member, such that the proximal end portion is not held in an axially-fixed position with respect to the shaft member, and
the impeller defining a radially-constrained configuration in which the impeller is introduced into the subject's body and a non-radially-constrained configuration in which the impeller is configured to pump blood within the subject's body, the shaft member is configured to slide within the proximal end portion of the impeller as the impeller changes from its radially-constrained configuration to its non-radially-constrained configuration.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/422,309Filed 25 Jan 2024 · continuation
Priority: 18 May 2015
Published: US 2024/0157116 A116 May 2024
Granted: 19 May 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

A61M 60/414
Generated by an electromotor: transmitted by a rotating cable, e.g. for blood pumps mounted on a catheter
A61M 60/13
Implantable via, into, inside, in line, branching on, or around a blood vessel: by means of a catheter allowing explantation, e.g. catheter pumps…
A61M 60/148
Implantable via, into, inside, in line, branching on, or around a blood vessel: in line with a blood vessel using resection or like techniques,…
A61M 60/237
Including a rotating member acting on the blood, e.g. impeller: the blood flow through the rotating member having mainly axial components, e.g.…

Family

Application62/162,881Us provisional application · filed 18 May 2015
PCT/IL2016/050525Parent of this continuation · filed 18 May 2016
Application16/859,100Parent of this continuation · filed 27 Apr 2020
US 11,291,824 B2Parent of this continuation · filed 5 Apr 2022
Application18/130,205Parent of this continuation · filed 3 Apr 2023
US 11,648,387 B2Parent of this continuation · filed 16 May 2023
US 2024/0157116 A1Pre-grant publication · published 16 May 2024
US 12,390,631 B2Parent of this continuation
Application15/574,948Parent of this continuation
US 2018/0169313 A1Published application
US 2020/0254161 A1Published application
US 2023/0233837 A1Published application
US 12,629,509 B2This patent

From the US filing history. Foreign family members aren’t listed.