# US 9,750,861 B2 · Loading guide lumen > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,750,861 B2 - Document ID: US9750861B2 - Status: Granted - Kind: B2 - Application number: 15/206,573 - Filed: 2016-07-11 - Published: 2016-11-03 - Granted: 2017-09-05 - Earliest claimed: 2010-12-01 - Assignees: ABIOMED, Inc. - Applicants: Abiomed, Inc. - Inventors: Caitlyn Hastie; Frank Kirchhoff; Thorsten Siess - Web page: https://patentgrep.com/patent/US9750861B2 ## CPC - A61M 60/148: in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices - A61M 1/00: Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems (catheters A61M25/00; tube connectors, tube couplings, valves or branch units specially adapted for medical use A61M39/00; devices for taking samples of blood A61B5/15; filters implantable into blood vessels A61F2/01) - A61M 25/0108: {using radio-opaque or ultrasound markers} - A61M 25/09: Guide wires - A61M 60/13: by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system - A61M 60/139: inside the aorta, e.g. intra-aortic balloon pumps - A61M 60/237: the blood flow through the rotating member having mainly axial components, e.g. axial flow pumps - A61M 60/405: the force acting on the blood contacting member being hydraulic or pneumatic - A61M 60/865: Devices for guiding or inserting pumps or pumping devices into the patient's body - A61M 60/867: using position detection during deployment, e.g. for blood pumps mounted on and driven through a catheter - A61M 25/0009: {Making of catheters or other medical or surgical tubes} - A61M 60/414: transmitted by a rotating cable, e.g. for blood pumps mounted on a catheter - 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 An apparatus is disclosed including: an intracardiac pump device having a path for a guidewire extending through the pump device from a first opening to a second opening; and a lumen which extends from a first end located outside of the pump device, into the pump device through the first opening in the pump device, along the path for the guidewire, out of the pump device through the second opening, and to a second end located outside of the pump device. The lumen is configured to receive the guidewire such that when the guidewire passes through the lumen from the first end to the second end, the guidewire is positioned along the path. ## Claims ### Claim 1 A blood pump assembly comprising: a cannula having proximal and distal ends; a first opening and a second opening; and a loading guide lumen configured to receive a guidewire therethrough, the loading guide lumen having a first end, a second end, and a middle portion; wherein the first end of the loading guide lumen is located outside of the first opening, the middle portion of the loading guide lumen extends into the first opening, through the cannula, and through the second opening such that the second end of the loading guide lumen is located outside of the second opening; wherein the loading guide lumen is configured to, after the guidewire is received by the loading guide lumen, be withdrawn from the first and second openings of the blood pump assembly while leaving the guidewire in a position extending through the first and second openings. ### Claim 2 (depends on 1) The assembly of claim 1, further comprising a drive portion and a pump portion, the drive portion being coaxial to the pump portion. ### Claim 3 (depends on 2) The assembly of claim 2, further comprising a catheter coupled to a proximal end of the drive portion. ### Claim 4 (depends on 1) The assembly of claim 1, further comprising a label attached to the lumen, wherein the label includes instructions for placing the guidewire in the lumen. ### Claim 5 (depends on 1) The assembly of claim 1, wherein at least a portion of the lumen has a color which differs from a color of the blood pump. ### Claim 6 (depends on 5) The assembly of claim 5, wherein the color of the lumen is red. ### Claim 7 (depends on 1) The assembly of claim 1, further comprising a flexible tubular extension positioned distal to the distal end of the cannula. ### Claim 8 (depends on 7) The assembly of claim 7, wherein the first opening is formed on an inlet cage having a first end coupled to the distal end of the cannula and a second end coupled to a proximal end of the flexible tubular extension. ### Claim 9 (depends on 7) The assembly of claim 7, wherein a distal end of the flexible tubular extension defines the second opening. ### Claim 10 (depends on 9) The assembly of claim 9, wherein the flexible tubular extension includes a pigtail tip. ### Claim 11 (depends on 1) The assembly of claim 1, wherein the lumen is formed from a polymer material. ### Claim 12 (depends on 11) The assembly of claim 11, wherein the polymer material is polyurethane. ### Claim 13 A blood pump assembly comprising: a cannula having proximal and distal ends; a suction head having blood inflow openings; a pump portion having blood discharge ports; a terminal opening distal to the blood inflow openings; and a removable guidewire lumen having a first end, second end, and a middle portion; wherein the removable guidewire lumen is positionable with a guidewire extending through in a loaded position in which the first end of the removable guidewire lumen located outside of the blood inflow openings, the middle portion of the removable guidewire lumen extending through one of the blood inflow openings, into the cannula and through the terminal opening such that the second end is located outside of the terminal opening; wherein the removable guidewire lumen is configured to be withdrawn from the blood pump assembly while leaving the guidewire in the loaded position. ### Claim 14 (depends on 13) The assembly of claim 13, wherein the guidewire has a first end and a second end, and when the removable guidewire lumen and the guidewire are in the loaded position, the first end of the guidewire extends beyond the first end of the removable guidewire lumen and the second end of the guidewire extends beyond the second end of the removable guidewire lumen. ### Claim 15 (depends on 13) The assembly of claim 13, wherein the blood discharge ports are formed in a cage coupled to the proximal end of the cannula. ### Claim 16 (depends on 15) The assembly of claim 15, further comprising an elastic extension coupled to a distal end of the suction head. ### Claim 17 (depends on 16) The assembly of claim 16, wherein the elastic extension extends the cannula mechanically and non-hydraulically. ### Claim 18 (depends on 13) The assembly of claim 13, wherein at least a portion of the lumen has a color which differs from a color of the blood pump. ### Claim 19 (depends on 13) The assembly of claim 13, wherein the removable guidewire lumen is configured to be manually withdrawn from the blood pump assembly. ### Claim 20 (depends on 13) The assembly of claim 13, further comprising a catheter coupled to a proximal end of the pump portion.