# US 11,027,113 B2 · Implantable mechanical circulatory support devices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,027,113 B2 - Document ID: US11027113B2 - Status: Granted - Kind: B2 - Application number: 16/528,730 - Filed: 2019-08-01 - Published: 2019-11-21 - Granted: 2021-06-08 - Earliest claimed: 2015-12-21 - Assignees: HeartWare, Inc. - Applicants: HeartWare, Inc. - Inventors: Douglas Godshall; Mustafa Ertan Taskin; Jeffrey A. Larose; Nick Youker; Andre Simon - Web page: https://patentgrep.com/patent/US11027113B2 ## CPC - A61M 60/122: Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body - A61M 60/148: in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices - A61M 60/237: the blood flow through the rotating member having mainly axial components, e.g. axial flow pumps - A61M 60/289: Devices for mechanical circulatory actuation assisting the residual heart function by means mechanically acting upon the patient's native heart or blood vessel structure, e.g. direct cardiac compression [DCC] devices - 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 60/422: the force acting on the blood contacting member being electromagnetic, e.g. using canned motor pumps - A61M 60/515: Regulation using real-time patient data - A61M 60/538: Regulation using real-time blood pump operational parameter data, e.g. motor current - A61M 60/81: Pump housings - A61M 60/861: Connections or anchorings for connecting or anchoring pumps or pumping devices to parts of the patient's body - A61M 2205/18: with alarm - A61M 2205/3334: Measuring or controlling the flow rate - A61M 2205/3365: Rotational speed - A61M 2205/8206: battery-operated - 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 mechanical circulatory support device. The mechanical circulatory support device includes an inner casing defining a fluid flow path, the fluid flow path defines a longitudinal axis. A rotor is mounted within the fluid flow path and configured to rotate about the longitudinal axis. A housing is included, the inner casing and the rotor being substantially disposed within the housing. The housing having a cross-sectional shape in a plane transverse to the longitudinal axis which decreases in thickness extending from a medial position to opposite lateral positions. ## Claims ### Claim 1 A method of implanting a mechanical circulatory support device in a patient having a body having a thorax and a circulatory system including a heart having a ventricle, comprising: forming a pocket within the body of the patient outside of the thoracic cavity; implanting a housing within the pocket, the housing having: an inner casing defining a fluid flow path and a longitudinal axis along the fluid flow path; a rotor mounted within the fluid flow path; the housing having a cross-sectional shape in a plane transverse to the longitudinal axis, the housing defines a first surface disposed about the longitudinal axis and a second planar surface transverse the longitudinal axis; and fluidly coupling the fluid flow path to the circulatory system of the patient. ### Claim 2 (depends on 1) The method of claim 1, wherein the pocket is formed in the pectoral region of the patient's body. ### Claim 3 (depends on 2) The method of claim 2, wherein fluidly coupling the fluid flow path to the circulatory system includes connecting an inlet cannula between the ventricle of the heart of the patient and the housing and connecting an outlet cannula from the housing to an artery of the patient. ### Claim 4 (depends on 3) The method of claim 3, wherein the rotor is an axial flow rotor configured to impel blood in a downstream direction along the flow path. ### Claim 5 (depends on 4) The method of claim 4, wherein the housing includes an outlet port disposed transverse to the longitudinal axis and in communication with the flow path. ### Claim 6 (depends on 5) The method of claim 5, wherein the housing is coupled to a volute, and wherein the volute is in fluid communication with the fluid flow path. ### Claim 7 (depends on 1) The method of claim 1, wherein the housing defines an opening to an interior of housing proximate the second surface. ### Claim 8 (depends on 1) The method of claim 1, wherein the second surface is substantially planar. ### Claim 9 (depends on 1) The method of claim 1, wherein the second surface is curved. ### Claim 10 (depends on 1) The method of claim 1, wherein at least a portion of the second surface is sloped in a direction toward the longitudinal axis. ### Claim 11 (depends on 1) The method of claim 1, wherein the first surface includes a pairs of end regions disposed on opposite ends of the first surface, and wherein the end regions are disposed substantially orthogonal to the longitudinal axis. ### Claim 12 A method of implanting a mechanical circulatory support device in a patient, comprising: forming a pocket within a body of the patient; implanting a housing within the pocket, the housing having: an inner casing defining a fluid flow path and a longitudinal axis along the fluid flow path; a rotor mounted within the fluid flow path; the housing having a cross-sectional shape in a plane transverse to the longitudinal axis, the housing defines a first surface disposed about the longitudinal axis and a second planar surface transverse the longitudinal axis; and fluidly coupling the fluid flow path to the circulatory system of the patient.