Flexible outflow cannula with shaped outlets

ChangeBridge: Patent Grants - Medical Devices (A61M)

Published March 31st, 2026

Detected March 31st, 2026

Summary

USPTO granted ABIOMED, INC. Patent US12589235B2 for a flexible outflow cannula with shaped outlets designed for blood pump applications. The patent includes 19 claims covering pump housing, catheter coupling, and flexible cannula structures with cut outlets and tapered proximal ends. This represents a routine patent grant conferring exclusive IP rights to the assignee.

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What changed

USPTO issued Patent US12589235B2 to ABIOMED, INC. on March 31, 2026, covering a flexible outflow cannula for blood pumps. The invention includes a pump housing, catheter, and flexible outflow cannula with shaped cut outlets having tapered proximal ends. The patent contains 19 claims and lists CPC classifications in the A61M range (medical pumps and catheters). Filing date was June 23, 2023.

No regulatory action is required by other entities. This is a patent grant conferring intellectual property rights to ABIOMED, not a compliance obligation. Competitors in the blood pump or catheter market should review the claims to assess potential freedom-to-operate implications for their own product development.

Source document (simplified)

← USPTO Patent Grants

Flexible outflow cannula with shaped outlets

Grant US12589235B2 Kind: B2 Mar 31, 2026

Assignee

ABIOMED, INC.

Inventors

Gerd Spanier

Abstract

A blood pump may be provided that may include a pump housing and a catheter operably coupled to the pump housing. The pump may include a flexible outflow cannula having a proximal portion operably coupled to the catheter, blood flow outlets, and a distal portion operably coupled to the pump housing. The proximal portion of the flexible outflow cannula may have a coupled portion coupled to the catheter and an uncoupled portion extending distally from the coupled portion, where at least one slit may be formed through the entire coupled portion. The slit may extend distally from the coupled portion through at least a portion of the uncoupled portion and connect to a proximal end of at least one of the blood flow outlets (“cut outlets”), the cut outlets having a tapered proximal end and extending distally from the uncoupled portion.

CPC Classifications

A61M 60/13 A61M 25/0012 A61M 25/0045 A61M 2025/0024 A61M 2025/0047 A61M 2025/0048 A61M 25/0023 A61M 25/01 A61M 60/216 A61M 60/865 A61M 60/857 A61M 2205/04 A61M 2205/75 A61M 2210/125 A61M 2210/127 A61M 25/0054 A61M 25/007 A61M 60/139 A61M 60/174 A61M 60/237 A61M 60/242 A61M 60/414 A61M 60/416 A61M 60/808 A61M 60/81 A61M 60/812 A61M 2025/0188 A61M 2025/0675 A61M 2039/1061 A61M 25/0009 A61M 25/005 A61M 25/0097 A61M 25/0668 A61M 39/02 A61M 60/135 A61M 60/165