US 12,569,669 B2Granted

Blood pump housing

AssigneeMagenta Medical Ltd.

InventorsYosi Tuval, Gad Lubinsky, Hagit Zemer Harel, Ori Friedland, Daniel Rosenblum, Avi Rozenfeld

Life of this patent

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Abstract

Apparatus and methods are described for manufacturing a housing for an impeller of a blood pump. A frame is treated in order to enhance bonding between an inner surface of the frame and an inner lining. Subsequently, the inner lining is coupled to the inner surface of the frame along at least a portion of a central cylindrical portion of the frame. Subsequent to coupling the inner lining to the inner surface of the frame along at least a portion of the central cylindrical portion of the frame, a portion of an elongate tube is placed around at least a portion of the frame. While heating the inner lining, the frame, and the portion of the elongate tube, pressure is applied such as to cause the portion of the elongate tube to become coupled to the frame. Other applications are also described.

Claims17

Dependent claims

A method, comprising:

manufacturing a housing for an impeller of a blood pump by:
treating a frame in order to enhance bonding between an inner surface of the frame and an inner lining;
subsequently, coupling the inner lining to the inner surface of the frame along at least a portion of a central cylindrical portion of the frame, the central cylindrical portion of the frame including struts that define a generally cylindrical shape;
subsequent to coupling the inner lining to the inner surface of the frame along at least a portion of the central cylindrical portion of the frame:
placing a mandrel inside the inner lining;
placing a portion of an elongate tube around at least a portion of the frame, the elongate tube including a proximal portion that defines at least one blood outlet opening;
while the portion of the elongate tube is disposed around at least the portion of the frame, heating the inner lining, the frame and the portion of the elongate tube, via the mandrel;
and
while heating the inner lining, the frame, and the portion of the elongate tube, applying pressure from outside the portion of the elongate tube, such as to cause the portion of the elongate tube to become coupled to the frame.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/122,456Filed 16 Mar 2023 · continuation
Priority: 9 Mar 2021
Published: US 2023/0226342 A127 Jul 2023
Granted: 10 Mar 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification28 codes

A61M 60/414
Generated by an electromotor: transmitted by a rotating cable, e.g. for blood pumps mounted on a catheter
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 60/178
Implantable in, on, or around the heart: drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to…
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

Application63/158,708Us provisional application · filed 9 Mar 2021
Application63/254,321Us provisional application · filed 11 Oct 2021
PCT/IB2022/051990Parent of this continuation · filed 7 Mar 2022
US 2023/0233836 A1Pre-grant publication · published 27 Jul 2023
Application18/001,680Parent of this continuation
US 2023/0226342 A1Published application
US 12,569,669 B2This patent

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