# US 2026/0061184 A1 · Percutaneous blood pump with articulating rigid length > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0061184 A1 - Document ID: US20260061184A1 - Status: Published application - Kind: A1 - Application number: 19/310,274 - Filed: 2025-08-26 - Published: 2026-03-05 - Earliest claimed: 2024-08-28 - Assignees: Boston Scientific Scimed, Inc. - Applicants: Boston Scientific Scimed, Inc. - Inventors: Daniel Presteng; Darrin Dale Beekman; Arden Michael Thomas Costello - Web page: https://patentgrep.com/patent/US20260061184A1 ## CPC - A61M 60/13: by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system - A61M 60/81: Pump housings - A61M 60/165: implantable in, on, or around the heart - A61M 60/216: including a rotating member acting on the blood, e.g. impeller - A61M 60/221: the blood flow through the rotating member having both radial and axial components, e.g. mixed flow pumps - A61M 60/416: transmitted directly by the motor rotor drive shaft - A61M 60/419: the force acting on the blood contacting member being permanent magnetic, e.g. from a rotating magnetic coupling between driving and driven magnets - A61M 60/865: Devices for guiding or inserting pumps or pumping devices into the patient's body - A61M 60/90: Details not provided for in groups A61M60/40, A61M60/50 or A61M60/80 - A61M 2205/0216: Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking - A61M 2205/0266: Shape memory materials - A61M 2205/103: rotating - A61M 2210/125: Heart - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract A percutaneous circulatory support system may include a blood pump. The blood pump may include an impeller assembly with an impeller housing having a first central axis. The blood pump may include a motor housing having a second central axis. A magnetic assembly may magnetically couple the impeller assembly with the motor assembly. A flexible connector may couple the impeller housing with the motor housing. The magnetic assembly may bias the impeller housing and the motor housing to a first configuration with the first central axis aligned with the second central axis. ## Claims ### Claim 1 A blood pump comprising: an impeller assembly comprising an impeller housing having a first central axis; a motor assembly comprising a motor housing having a second central axis; a magnetic assembly magnetically coupling the impeller assembly with the motor assembly; and a flexible connector coupling the impeller housing with the motor housing, and wherein the magnetic assembly is configured to bias the impeller housing and the motor housing to a first configuration with the first central axis aligned with the second central axis. ### Claim 2 (depends on 1) The blood pump of claim 1, wherein the impeller housing is rigid and the motor housing is rigid. ### Claim 3 (depends on 1) The blood pump of claim 1, wherein the flexible connector is formed from an elastomer material configured to bias the impeller housing and the motor housing to the first configuration. ### Claim 4 (depends on 1) The blood pump of claim 1, wherein the flexible connector is an elastomer tube. ### Claim 5 (depends on 1) The blood pump of claim 1, wherein the flexible connector is formed from a nickel-titanium alloy configured to bias the impeller housing and the motor housing to the first configuration. ### Claim 6 (depends on 1) The blood pump of claim 1, wherein the flexible connector is configured to facilitate the impeller housing and the motor housing adjusting to a second configuration in which the first central axis is transverse to the second central axis. ### Claim 7 (depends on 6) The blood pump of claim 6, wherein the flexible connector is configured to limit an angle between the first central axis and the second central axis when the impeller housing and the motor housing are in the second configuration. ### Claim 8 (depends on 1) The blood pump of claim 1, wherein a distal end of the motor housing has a first radius of curvature and a proximal end of the impeller housing has a second radius of curvature configured to mate with the first radius of curvature. ### Claim 9 (depends on 1) The blood pump of claim 1, further comprising: a wire; and a tube coupled with the wire, and wherein the tube is configured to adjust from a first position in which the tube is distal of the flexible connector and a second position in which the tube extends between the impeller housing and the motor housing to maintain the first central axis in alignment with the second central axis. ### Claim 10 (depends on 1) The blood pump of claim 1, wherein the impeller assembly comprises an impeller within the impeller housing and the motor assembly comprises a motor within the motor housing. ### Claim 11 (depends on 10) The blood pump of claim 10, wherein the magnetic assembly comprises a first magnet within the impeller housing and coupled with an impeller shaft coupled with the impeller and a second magnet within the motor housing and coupled with a drive shaft coupled with the motor. ### Claim 12 (depends on 1) The blood pump of claim 1, wherein a flexible elongate shaft extends in a proximal direction from the motor assembly. ### Claim 13 A blood pump comprising: an impeller assembly comprising a first magnet, an impeller shaft coupled with the first magnet, an impeller coupled with the impeller shaft, and an impeller housing that houses the first magnet, the impeller shaft, and the impeller; a motor assembly comprising a second magnet, a drive shaft coupled with the second magnet, a motor coupled with the drive shaft, and a motor housing that houses the second magnet, the drive shaft, and the motor; and a resilient connector coupling the impeller housing with the motor housing and configured to bias the impeller housing and the motor housing to an axial configuration and allow the impeller housing and the motor housing to articulate relative to one another. ### Claim 14 (depends on 13) The blood pump of claim 13, wherein the first magnet and the second magnet are configured to bias the impeller housing and the motor housing to the axial configuration. ### Claim 15 (depends on 13) The blood pump of claim 13, wherein the resilient connector has a length configured to maintain an operative distance between the first magnet and the second magnet while the resilient connector adjusts between a first configuration and a second configuration. ### Claim 16 (depends on 13) The blood pump of claim 13, wherein the resilient connector is formed from an elastomer material. ### Claim 17 (depends on 13) The blood pump of claim 13, wherein a distal end of the motor housing has a first radius of curvature and a proximal end of the impeller housing has a second radius of curvature configured to mate with the first radius of curvature. ### Claim 18 A method of using a blood pump, the method comprising: inserting the blood pump into vasculature of a patient, the blood pump comprising a motor housing and an impeller housing configured to articulate relative to one another; advancing the blood pump through the vasculature, wherein the motor housing and the impeller housing are configured to articulate relative to one another around curvatures in the vasculature; and positioning the blood pump at a location proximate an aortic valve of the patient, wherein the motor housing and the impeller housing are configured to axially align with one another at the location proximate the aortic valve. ### Claim 19 (depends on 18) The method of claim 18, wherein the motor housing and the impeller housing are coupled to one another via a magnetic coupling and the magnetic coupling biases the motor housing and the impeller housing to an axially aligned configuration. ### Claim 20 (depends on 18) The method of claim 18, wherein the blood pump comprises a flexible connector coupled with the motor housing and the impeller housing, the flexible connector is configured to limit articulation between the motor housing and the impeller housing.