# US 10,245,367 B2 · Ambulatory lung assist device with implanted blood pump and oxygenator > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,367 B2 - Document ID: US10245367B2 - Status: Granted - Kind: B2 - Application number: 15/654,102 - Filed: 2017-07-19 - Published: 2017-11-02 - Granted: 2019-04-02 - Earliest claimed: 2012-04-06 - Assignees: HeartWare, Inc. - Applicants: HeartWare, Inc. - Inventors: Martin Strueber - Web page: https://patentgrep.com/patent/US10245367B2 ## CPC - A61M 1/32: Oxygenators without membranes - A61M 1/14: Dialysis systems; Artificial kidneys; Blood oxygenators (semi-permeable membranes characterised by the material, manufacturing processes therefor B01D71/00){; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis} - A61M 1/3666: {Cardiac or cardiopulmonary bypass, e.g. heart-lung machines} - A61M 1/3667: {with assisted venous return} - A61M 60/148: in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices - A61M 60/178: drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices - A61M 60/216: including a rotating member acting on the blood, e.g. impeller - A61M 60/38: Blood oxygenation - A61M 1/1698: {Blood oxygenators with or without heat-exchangers (intracorporal A61M1/1678; manufacturing of membranes therefor B01D67/00; semi-permeable membranes for separation processes characterised by their properties B01D69/00; semi-permeable membranes characterised by their material B01D71/00)} - 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 The present disclosure provides a system for oxygenating blood. The system may include an implantable blood pump that may draw a supply of blood from the circulatory system of a mammalian subject, such as a human being. The blood pump may provide the supply of blood to an adaptor, where the supply of blood may be supplied to either or both of a first branch or second branch. The first branch may lead to an external blood oxygenator. The oxygenator may oxygenate the blood, and the blood may be returned to the circulatory system of the mammalian subject. The second branch may bypass the oxygenator and may connect to the circulatory system of the mammalian subject. In this regard, while the blood is supplied to the second branch, the oxygenator may be disconnected and blood may be prevented from entering the first branch. ## Claims ### Claim 1 A portable lung assist system, comprising: an implantable blood pump having a pump outlet and a pump inlet configured for communication with a circulatory system of a patient at an inlet location; and an external and portable blood oxygenator having a blood inlet releasably connectable to the pump outlet and a blood outlet releasably connectable to the circulatory system of the patient at a return location; and a bypass conduit connectable to the blood pump, wherein the oxygenator and the bypass conduit are in continuous fluid communication with the blood pump when the blood inlet is connected to the pump outlet. ### Claim 2 (depends on 1) The system of claim 1, wherein the blood inlet and the blood outlet are releasably connectable when the blood pump and the bypass conduit are connected to the circulatory system. ### Claim 3 (depends on 2) The system of claim 2, further comprising a first return fitting and a second return fitting adapted for connection to the circulatory system at the return location and adapted for respective connection to the blood outlet and the bypass conduit. ### Claim 4 (depends on 2) The system of claim 2, wherein the inlet location and the return location are located within a same anatomical feature of the circulatory system. ### Claim 5 (depends on 4) The system of claim 4, wherein the anatomical feature of the circulatory system is a pulmonary artery. ### Claim 6 (depends on 4) The system of claim 4, wherein the anatomical feature of the circulatory system is a right atrium. ### Claim 7 (depends on 4) The system of claim 4, wherein the anatomical feature of the circulatory system is a right ventricle. ### Claim 8 (depends on 1) The system of claim 1, further comprising a dual-lumen catheter having a first lumen and a second lumen, the first lumen comprising a system inlet fitting, and the second lumen comprising a system return fitting. ### Claim 9 A portable lung assist system, comprising: a system inlet and a system return connectable to a circulatory system of a patient at an inlet location and a return location thereof, respectively; an implantable blood pump having a pump inlet in communication with the system inlet and a pump outlet; a portable blood oxygenator having a blood inlet in communication with the pump outlet and a blood outlet in communication with the system return, the portable blood oxygenator being disconnectable from the lung assist system at a plurality of disconnect locations located downstream of the blood outlet and upstream of the blood inlet; and a blood bypass coupled to the blood pump, wherein the oxygenator and the blood bypass are in continuous fluid communication with the blood pump when the oxygenator is connected to the pump outlet. ### Claim 10 (depends on 9) The system of claim 9, wherein the portable blood oxygenator is disconnectable from the lung assist system via a plurality of disconnect fittings located at the plurality of disconnect locations, and when the portable blood oxygenator is disconnected from the lung assist system, the blood pump continuously supplies blood to the blood bypass. ### Claim 11 (depends on 10) The system of claim 10, further comprising the blood bypass having a bypass inlet in communication with the pump outlet and a bypass outlet in communication with the system return, and wherein the system return comprises a first return fitting and a second return fitting adapted for connection to the circulatory system, and the bypass outlet is in communication with the first return fitting and the blood outlet is in communication with the second return fitting. ### Claim 12 (depends on 11) The system of claim 11, wherein the system return includes a return fitting configured for connection to the circulatory system, and the bypass outlet and the blood outlet are both in communication with the return fitting. ### Claim 13 (depends on 11) The system of claim 11, wherein the blood bypass includes an additional blood oxygenator connected thereto between the bypass inlet and the bypass outlet. ### Claim 14 (depends on 11) The system of claim 11, wherein the inlet location and the return location are located within a same anatomical feature of the circulatory system. ### Claim 15 (depends on 14) The system of claim 14, wherein the anatomical feature of the circulatory system is a pulmonary artery. ### Claim 16 (depends on 14) The system of claim 14, wherein the anatomical feature of the circulatory system is a right atrium. ### Claim 17 (depends on 14) The system of claim 14, wherein the anatomical feature of the circulatory system is a right ventricle. ### Claim 18 (depends on 9) The system of claim 9, further comprising a dual-lumen catheter having a first lumen and a second lumen, the first lumen including an inlet fitting and the second lumen including a return fitting. ### Claim 19 A method of providing respiratory assistance to a patient, comprising: directing blood from a system inlet at an inlet location within a circulatory system of the patient through an implantable blood pump, out of the patient, through a portable oxygenator and back to the circulatory system; disconnecting the portable oxygenator; and directing blood through the blood pump, through a blood bypass, and back to the circulatory system when the oxygenator is disconnected and when the oxygenator is reconnected. ### Claim 20 (depends on 19) The method of claim 19, wherein the inlet location and the return location are both located at one of a right atrium, a right ventricle or a pulmonary artery of the circulatory system.