# US 2025/0144397 A1 · Method of manufacturing electrical conductor tracks in a region of an intravascular blood pump > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0144397 A1 - Document ID: US20250144397A1 - Status: Published application - Kind: A1 - Application number: 19/018,309 - Filed: 2025-01-13 - Published: 2025-05-08 - Earliest claimed: 2018-05-30 - Assignees: Kardion GmbH - Applicants: Kardion GmbH - Inventors: Julian Kassel; Thomas Alexander Schlebusch - Web page: https://patentgrep.com/patent/US20250144397A1 ## CPC - A61M 60/135: inside a blood vessel, e.g. using grafting - A61M 60/13: by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system - A61M 60/174: discharging the blood to the ventricle or arterial system via a cannula internal to the ventricle or arterial system - A61M 60/237: the blood flow through the rotating member having mainly axial components, e.g. axial flow pumps - A61M 60/411: generated by an electromotor - A61M 60/515: Regulation using real-time patient data - A61M 60/531: using blood pressure data, e.g. from blood pressure sensors - A61M 60/554: of blood pressure - A61M 60/816: Sensors arranged on or in the housing, e.g. ultrasonic flow sensors - A61M 60/857: Implantable blood tubes - A61M 2205/0238: the material being a coating or protective layer - A61M 2205/3331: Pressure; Flow - A61M 2205/3368: Temperature - A61M 2207/00: Methods of manufacture, assembly or production - 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 An intravascular blood pump (100) comprises a tip (110), a first region (120) with at least one blood through-opening (121), a flow cannula (130), a second region (140) with at least one blood through-opening (141), a motor-operated pump mechanism (150) and a conducting cable (170). At least in the region of the flow cannula (130), at least one electrical conductor track is realized by a surface coating structure. ## Claims ### Claim 1 An intravascular blood pump comprising: a tip; a first region comprising at least one blood through-opening; a flow cannula; a second region comprising at least one blood through-opening; a motor-operated pump device; and a conducting cable, wherein at least one electrical conductor track comprising a surface coating structure in at least a region of the flow cannula; and wherein the at least one electrical conductor track extends about a spiral structure of the flow cannula. ### Claim 2 (depends on 1) The blood pump according to claim 1, further comprising at least one electronic component disposed in a region of the tip, wherein the at least one electrical conductor track provides an electrical connection for the at least one electronic component. ### Claim 3 (depends on 2) The blood pump according to claim 2, wherein the at least one electrical component comprises an ultrasonic element. ### Claim 4 (depends on 2) The blood pump according to claim 2, wherein the at least one electrical component comprises a pressure sensor. ### Claim 5 (depends on 2) The blood pump according to claim 2, wherein the at least one electrical component comprises a temperature sensor. ### Claim 6 (depends on 1) The blood pump according to claim 1, wherein one or more sensors are integrated into the surface coating structure. ### Claim 7 (depends on 6) The blood pump according to claim 6, wherein the one or more sensors comprise at least one of strain sensors, breakage sensors, and temperature sensors. ### Claim 8 (depends on 6) The blood pump according to claim 6, wherein the at least one electrical conductor track comprises one or more meandering conductor tracks forming one or more sensor regions of the one or more sensors. ### Claim 9 (depends on 8) The blood pump according to claim 8, wherein the one or more meandering conductor tracks forming the one or more sensor regions are at least partially formed of a different material than one or more conductor tracks outside the sensor regions. ### Claim 10 (depends on 8) The blood pump according to claim 8, wherein the one or more meandering conductor tracks forming the one or more sensor regions are formed of platinum. ### Claim 11 (depends on 1) The blood pump according to claim 1, wherein the flow cannula comprises a coatable material, wherein the surface coating structure is configured to be applied to the coatable material to form the electrical conductor tracks. ### Claim 12 (depends on 11) The blood pump according to claim 11, wherein the coatable material comprises at least one of: nickel-titanium alloys, titanium, stainless steel, glass, and ceramic. ### Claim 13 (depends on 1) The blood pump according to claim 1, wherein the surface coating structure comprises a multilayer structure. ### Claim 14 (depends on 1) The blood pump according to claim 1, wherein electrical connection of the conductor tracks is established by a frictional connection. ### Claim 15 A method of manufacturing electrical conductor tracks in a region of an intravascular blood pump, the method comprising: applying an insulating base layer to a coatable material; applying a photoresist material; applying a conductor track structure, wherein the conductor track structure is applied by sputtering; removing the photoresist material; and applying an electrically insulating surface, wherein the electrical insulating surface is biocompatible. ### Claim 16 (depends on 15) The method according to claim 15, wherein the intravascular blood pump comprises: a tip; a first region comprising at least one blood through-opening; a flow cannula; a second region comprising at least one blood through-opening; a motor-operated pump device; and a conducting cable. ### Claim 17 (depends on 16) The method according to claim 16, further comprising at least one electronic component disposed in a region of the tip, wherein at least one electrical conductor track provides an electrical connection for the at least one electronic component. ### Claim 18 A method of manufacturing electrical conductor tracks in a region of an intravascular blood pump, the method comprising: applying an insulating base layer to a coatable material; applying an initial metallic conductor layer, wherein the initial metallic conductor layer is applied by sputtering; applying a photoresist material; thickening exposed portions of the initial metallic conductor layer using a wet chemical electroplating process; removing the photoresist material; removing portions of the initial metallic conductor layer outside conductor tracks; applying an electrically insulating surface, wherein the electrically insulating surface is biocompatible. ### Claim 19 (depends on 18) The method according to claim 18, wherein the intravascular blood pump comprises: a tip; a first region comprising at least one blood through-opening; a flow cannula; a second region comprising at least one blood through-opening; a motor-operated pump device; and a conducting cable. ### Claim 20 (depends on 19) The method according to claim 19, further comprising at least one electronic component disposed in a region of the tip, wherein at least one electrical conductor track provides an electrical connection for the at least one electronic component.