# US 9,433,730 B2 · Fluid mixing control device for a multi-fluid delivery system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,433,730 B2 - Document ID: US9433730B2 - Status: Granted - Kind: B2 - Application number: 13/826,418 - Filed: 2013-03-14 - Published: 2014-09-18 - Granted: 2016-09-06 - Earliest claimed: 2013-03-14 - Assignees: Bayer HealthCare LLC - Applicants: Medrad, Inc. - Inventors: Ralph H Schriver; Michael Riley - Web page: https://patentgrep.com/patent/US9433730B2 ## CPC - A61M 5/007: {for contrast media} - A61M 5/14566: {with a replaceable reservoir for receiving a piston rod of the pump} - A61M 5/16827: {controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths (infusion of multiple fluids without using a controller A61M5/1407)} - A61M 2005/1403: {Flushing or purging} - A61M 2205/0233: Conductive materials, e.g. antistatic coatings for spark prevention - A61M 2205/502: User interfaces, e.g. screens or keyboards - A61M 2205/505: Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches - A61M 2205/581: by audible feedback - A61M 2205/582: by tactile feedback - 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 fluid delivery system for use in medical procedures includes multiple fluid pump devices to deliver multiple injection fluids to a patient. The system includes a control unit controlling the fluid pump devices. An interactive visual display may be provided and electronically linked to the control unit so a user may select discrete mixture ratios of the first and the second of the multiple injection fluids to be delivered to the patient. A manual control device is operatively associated with the fluid pump devices and includes a housing and an actuator associated with the housing. Actuation of the actuator controls discrete flow rates of the selected discrete mixture ratio of the first and the second of the multiple injection fluids to the patient. ## Claims ### Claim 1 A fluid delivery system for use in medical procedures to deliver multiple injection fluids to a patient, the system comprising: a first pump device for delivering a first of the multiple injection fluids to the patient; a second pump device for delivering a second of the multiple injection fluids to the patient; a control unit controlling the first pump device and the second pump device; an interactive visual display comprising a menu with a plurality of discrete mixture ratios, the interactive visual display electronically linked to the control unit for a user to select a single discrete mixture ratio of the first and the second of the multiple injection fluids to be delivered to the patient; and a manual control device operatively associated with the first pump device and the second pump device, the manual control device comprising: a housing; and an actuator associated with the housing and controlling discrete flow rates of the selected discrete mixture ratio of the first and the second of the multiple injection fluids to the patient; wherein selection of the discrete mixture ratio by the user on the menu of the interactive visual display initiates an output signal to the control unit to deliver the first and the second of the multiple injection fluids in the selected discrete mixture ratio of the first and the second of the multiple injection fluids to the patient, and wherein actuation of the actuator initiates flow rate output signals to the control unit to control the discrete flow rates of the selected discrete mixture ratio of the first and the second of the multiple injection fluids to the patient. ### Claim 2 (depends on 1) The fluid delivery system of claim 1, further comprising: an electronic substrate disposed within the housing and comprising a conductive pattern, the actuator adapted to operatively associate with the conductive pattern when actuated by the user, wherein the conductive pattern comprises a plurality of predetermined digital values corresponding to the discrete flow rates of the selected discrete mixture ratio of the first and the second of the multiple injection fluids to be delivered to the patient such that when the actuator is actuated, the actuator operatively associates with the conductive pattern and transmits the digital values to the control unit. ### Claim 3 (depends on 2) The fluid delivery system of claim 2, wherein the actuator is movably associated with the housing and the digital values are arranged such that the discrete flow rates are linearly proportional to distance of movement of the actuator. ### Claim 4 (depends on 2) The fluid delivery system of claim 2, wherein the actuator is movably associated with the housing and the digital values are arranged such that the discrete flow rates incrementally increase with distance of movement of the actuator. ### Claim 5 (depends on 2) The fluid delivery system of claim 2, wherein the digital values comprise at least a first digital value corresponding to no movement of the actuator and a 0% discrete flow rate from the fluid delivery system, and a last digital value corresponding to a maximum movement of the actuator and a 100% discrete flow rate from the fluid delivery system. ### Claim 6 (depends on 2) The fluid delivery system of claim 2, wherein the actuator is movably associated with the housing, the actuator comprising an actuating member and a contact roller adapted to operatively associate with the conductive pattern. ### Claim 7 (depends on 1) The fluid delivery system of claim 1, wherein the manual control device is adapted to provide at least one of tactile and auditory feedback to the user. ### Claim 8 (depends on 1) The fluid delivery system of claim 1, wherein the manual control device is adapted to provide increasing tactile resistance to the user as the discrete flow rate increases. ### Claim 9 (depends on 1) The fluid delivery system of claim 1, wherein the first injection fluid and the second injection fluid are different fluids. ### Claim 10 A fluid delivery system for use in medical procedures to deliver multiple injection fluids to a patient, the system comprising: a powered fluid injector for delivering a first of the multiple injection fluids to the patient; a fluid pump device for delivering a second of the multiple injection fluids to the patient; a control unit controlling the powered fluid injector and the fluid pump device; an interactive visual display comprising a menu with a plurality of discrete mixture ratios, the interactive visual display electronically linked to the control unit for a user to select a single discrete mixture ratio of the first and the second of the multiple injection fluids to be delivered to the patient; and a manual control device operatively associated with the powered fluid injector and the fluid pump device, the manual control device comprising: a housing; and an actuator associated with the housing and controlling discrete flow rates of the selected discrete mixture ratio of the first and the second of the multiple injection fluids to the patient; wherein selection of the discrete mixture ratio by the user on the menu of the interactive visual display initiates an output signal to the control unit to deliver the first and the second of the multiple injection fluids in the selected discrete mixture ratio of the first and the second of the multiple injection fluids to the patient, and wherein actuation of the actuator initiates flow rate output signals to the control unit to control the discrete flow rates of the selected discrete mixture ratio of the first and the second of the multiple injection fluids to the patient. ### Claim 11 (depends on 10) The fluid delivery system of claim 10, further comprising: an electronic substrate disposed within the housing and comprising a conductive pattern, the actuator adapted to operatively associate with the conductive pattern when actuated by the user, wherein the conductive pattern comprises a plurality of predetermined digital values corresponding to the discrete flow rates of the selected discrete mixture ratio of the first and the second of the multiple injection fluids to be delivered to the patient such that when the actuator is actuated, the actuator operatively associates with the conductive pattern and transmits the digital values to the control unit. ### Claim 12 (depends on 11) The fluid delivery system of claim 11, wherein the actuator is movably associated with the housing and the digital values are arranged such that the discrete flow rates are linearly proportional to distance of movement of the actuator. ### Claim 13 (depends on 11) The fluid delivery system of claim 11, wherein the actuator is movably associated with the housing and the digital values are arranged such that the discrete flow rates incrementally increase with distance of movement of the actuator. ### Claim 14 (depends on 11) The fluid delivery system of claim 11, wherein the digital values comprise at least a first digital value corresponding to no movement of the actuator and a 0% discrete flow rate from the fluid delivery system, and a last digital value corresponding to a maximum movement of the actuator and a 100% discrete flow rate from the fluid delivery system. ### Claim 15 (depends on 11) The fluid delivery system of claim 11, wherein the actuator is movably associated with the housing, the actuator comprising an actuating member and a contact roller adapted to operatively associate with the conductive pattern. ### Claim 16 (depends on 10) The fluid delivery system of claim 10, wherein the manual control device is adapted to provide at least one of tactile and auditory feedback to the user. ### Claim 17 (depends on 10) The fluid delivery system of claim 10, wherein the manual control device is adapted to provide increasing tactile resistance to the user as the discrete flow rate increases. ### Claim 18 (depends on 10) The fluid delivery system of claim 10, wherein the first injection fluid and the second injection fluid are different fluids. ### Claim 19 A fluid delivery system for use in medical procedures comprising multiple fluid pump devices to deliver multiple injection fluids to a patient, the system comprising: a control unit controlling the fluid pump devices; an interactive visual display comprising a menu with a plurality of discrete mixture ratios, the interactive visual display electronically linked to the control unit for a user to select a single discrete mixture ratio of the multiple injection fluids to be delivered to the patient; and a manual control device operatively associated with the fluid pump devices, the manual control device comprising: a housing; and an actuator associated with the housing and controlling discrete flow rates of the selected discrete mixture ratio of the multiple injection fluids to the patient; wherein selection of the discrete mixture ratio by the user on the menu of the interactive visual display initiates an output signal to the control unit to deliver the multiple injection fluids in the selected discrete mixture ratio of the multiple injection fluids to the patient, and wherein actuation of the actuator initiates flow rate output signals to the control unit to control the discrete flow rates of the selected discrete mixture ratio of the multiple injection fluids to the patient. ### Claim 20 (depends on 19) The fluid delivery system of claim 19, further comprising: an electronic substrate disposed within the housing and comprising a conductive pattern, the actuator adapted to operatively associate with the conductive pattern when actuated by the user, wherein the conductive pattern comprises a plurality of predetermined digital values corresponding to the discrete flow rates of the selected discrete mixture ratio of the multiple injection fluids to be delivered to the patient such that when the actuator is actuated, the actuator operatively associates with the conductive pattern and transmits the digital values to the control unit. ### Claim 21 (depends on 20) The fluid delivery system of claim 20, wherein the actuator is movably associated with the housing and the digital values are arranged such that the discrete flow rates are linearly proportional to distance of movement of the actuator. ### Claim 22 (depends on 20) The fluid delivery system of claim 20, wherein the actuator is movably associated with the housing and the digital values are arranged such that the discrete flow rates incrementally increase with distance of movement of the actuator. ### Claim 23 (depends on 20) The fluid delivery system of claim 20, wherein the digital values comprise at least a first digital value corresponding to no movement of the actuator and a 0% discrete flow rate from the fluid delivery system, and a last digital value corresponding to a maximum movement of the actuator and a 100% discrete flow rate from the fluid delivery system. ### Claim 24 (depends on 19) The fluid delivery system of claim 19, wherein the manual control device is adapted to provide at least one of tactile and auditory feedback to the user. ### Claim 25 (depends on 19) The fluid delivery system of claim 19, wherein the manual control device is adapted to provide increasing tactile resistance to the user as the discrete flow rate increases.