US 12,544,556 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 mandrel is placed inside an inner lining, with a central cylindrical portion of a frame disposed around the inner lining, the mandrel being shorter than a length of the inner lining. A portion of an elongate tube is placed around at least a portion of the frame. The inner lining, the frame and the portion of the elongate tube are heated, via the mandrel, and, while heating the inner lining, the frame, and the portion of the elongate tube, pressure is applied from outside the portion of the elongate tube, 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:
placing a mandrel inside an inner lining, with a central cylindrical portion of a frame disposed around the inner lining, the central cylindrical portion of the frame including struts that define a generally cylindrical shape,
wherein the mandrel is shorter than a length of 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.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/122,486Filed 16 Mar 2023 · continuation
Priority: 9 Mar 2021
Published: US 2023/0218887 A113 Jul 2023
Granted: 10 Feb 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 2023/0218887 A1Pre-grant publication · published 13 Jul 2023
Application18/001,680Parent of this continuation
US 2023/0226342 A1Published application
US 12,544,556 B2This patent

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