# US 11,027,058 B2 · Infusion pump assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,027,058 B2 - Document ID: US11027058B2 - Status: Granted - Kind: B2 - Application number: 15/595,304 - Filed: 2017-05-15 - Published: 2017-08-31 - Granted: 2021-06-08 - Earliest claimed: 2006-02-09 - Assignees: DEKA Products Limited Partnership - Applicants: DEKA Products Limited Partnership - Inventors: Gregory R. Lanier, Jr.; Larry B. Gray; Richard J. Lanigan; Dean Kamen; Stephen L. Fichera; John M. Kerwin - Web page: https://patentgrep.com/patent/US11027058B2 ## CPC - A61M 5/14224: {Diaphragm type} - A61M 5/14248: {of the skin patch type} - A61M 5/14586: {pressurised by means of a flexible diaphragm} - A61M 5/16809: {by repeated filling and emptying of an intermediate volume} - F04B 17/00: Pumps characterised by combination with, or adaptation to, specific driving engines or motors - F04B 17/06: Mobile combinations - F04B 49/00: Control {, e.g. of pump delivery, or pump pressure} of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 - F04B 49/065: {and making use of computers} - G05D 7/0676: {by action on flow sources (G05D7/0688, G05D7/0694 take precedence)} - A61M 2005/14268: {with a reusable and a disposable component} - A61M 2205/0266: Shape memory materials - A61M 2205/0294: Piezoelectric materials - A61M 2205/18: with alarm - A61M 2205/3306: Optical measuring means - A61M 2205/3317: Electromagnetic, inductive or dielectric measuring means - A61M 2205/3327: Measuring - A61M 2205/3331: Pressure; Flow - A61M 2205/3375: Acoustical, e.g. ultrasonic, measuring means - A61M 2205/3576: with non implanted data transmission devices, e.g. using external transmitter or receiver - A61M 2205/502: User interfaces, e.g. screens or keyboards - A61M 2205/52: with memories providing a history of measured variating parameters of apparatus or patient - A61M 2205/582: by tactile feedback - A61M 2205/8237: Charging means - A61M 2206/22: eliminating pulsatile flows, e.g. by the provision of a dampening chamber - A61M 2209/045: for filling, e.g. for filling reservoirs - 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)} - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) - G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES ## Abstract A wearable infusion pump assembly includes a reservoir for receiving an infusible fluid, and an external infusion set configured to deliver the infusible fluid to a user. A fluid delivery system is configured to deliver the infusible fluid from the reservoir to the external infusion set. The fluid delivery system includes a volume sensor assembly, and a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the volume sensor assembly. The volume sensor assembly is configured to determine the volume of at least a portion of the quantity of fluid. The fluid delivery system further includes at least one optical sensor assembly configured to sense the movement of the pump assembly, a first valve assembly configured to selectively isolate the pump assembly from the reservoir, and a second valve assembly configured to selectively isolate the volume sensor assembly from the external infusion set. ## Claims ### Claim 1 A wearable infusion pump assembly comprising: a reservoir; a controller; and a fluid delivery system configured to deliver an infusible fluid from the reservoir to a fluid delivery system outlet, the fluid delivery system comprising: at least one sensor assembly including a light emitter and a sensor; and a pump assembly for extracting a quantity of the infusible fluid from the reservoir and providing the quantity of the infusible fluid to the fluid delivery system outlet, wherein the at least one sensor assembly includes a first sensor assembly configured to optically sense movement of a displaceable member which is displaced as the infusible fluid is transferred with actuations of the pump assembly, and wherein the controller is configured to determine when the reservoir is empty based at least in part upon an output of the at least one sensor assembly. ### Claim 2 (depends on 1) The wearable infusion pump assembly of claim 1 further comprising a volume sensor assembly, wherein the quantity of the infusible fluid is provided to the volume sensor assembly, and wherein the volume sensor assembly is configured to determine a volume of at least a portion of the quantity of the infusible fluid. ### Claim 3 (depends on 1) The wearable infusion pump assembly of claim 1 further comprising a first valve assembly configured to selectively isolate the pump assembly from the reservoir. ### Claim 4 (depends on 3) The wearable infusion pump assembly of claim 3 further comprising a second valve assembly configured to selectively isolate a volume sensor assembly from the fluid delivery system outlet. ### Claim 5 (depends on 4) The wearable infusion pump assembly of claim 4 further comprising a second sensor assembly configured to optically sense movement of the second valve assembly. ### Claim 6 (depends on 3) The wearable infusion pump assembly of claim 3 further comprising: a computer readable medium coupled to the controller, the computer readable medium including a plurality of instructions stored thereon which, when executed by the controller, cause the controller to perform operations comprising: activating the first valve assembly to isolate the pump assembly from the reservoir; and activating the pump assembly to provide the quantity of the infusible fluid to the volume sensor assembly. ### Claim 7 (depends on 6) The wearable infusion pump assembly of claim 6 wherein the fluid delivery system includes an actuator associated with the first valve assembly and activating the first valve assembly includes energizing the actuator. ### Claim 8 (depends on 7) The wearable infusion pump assembly of claim 7 wherein the actuator includes a shape memory actuator. ### Claim 9 (depends on 6) The wearable infusion pump assembly of claim 6 wherein the fluid delivery system includes an actuator associated with the pump assembly and activating the pump assembly includes energizing the actuator. ### Claim 10 (depends on 9) The wearable infusion pump assembly of claim 9 wherein the fluid delivery system includes a bell crank assembly for mechanically coupling the pump assembly to the actuator. ### Claim 11 (depends on 9) The wearable infusion pump assembly of claim 9 wherein the actuator includes a shape memory actuator. ### Claim 12 (depends on 6) The wearable infusion pump assembly of claim 6 further comprising: a second valve assembly configured to selectively isolate the volume sensor assembly from the fluid delivery system outlet; and wherein the computer readable medium further includes instructions for: activating a volume sensor assembly to determine the volume of at least a portion of the quantity of the infusible fluid provided to the volume sensor assembly from the pump assembly; and activating the second valve assembly to fluidly couple the volume sensor assembly to the fluid delivery system outlet. ### Claim 13 (depends on 12) The wearable infusion pump assembly of claim 12 wherein the fluid delivery system includes an actuator associated with the second valve assembly and activating the second valve assembly includes energizing the actuator. ### Claim 14 (depends on 13) The wearable infusion pump assembly of claim 13 wherein the fluid delivery system includes a bell crank assembly for mechanically coupling the second valve assembly to the actuator. ### Claim 15 (depends on 13) The wearable infusion pump assembly of claim 13 wherein the actuator includes a shape memory actuator. ### Claim 16 (depends on 12) The wearable infusion pump assembly of claim 12 wherein the fluid delivery system further includes: a bracket assembly configured to maintain the second valve assembly in an activated state and wherein the computer readable medium further includes instructions for: activating the bracket assembly to release the second valve assembly from the activated state. ### Claim 17 (depends on 16) The wearable infusion pump assembly of claim 16 wherein activating the bracket assembly includes energizing a bracket actuator associated with the bracket assembly. ### Claim 18 (depends on 17) The wearable infusion pump assembly of claim 17 wherein the bracket actuator includes a shape memory actuator. ### Claim 19 (depends on 4) The wearable infusion pump assembly of claim 4 wherein the fluid delivery system further includes: a bracket assembly configured to maintain the second valve assembly in an activated state. ### Claim 20 (depends on 1) The wearable infusion pump assembly of claim 1 wherein the at least one optical sensor assembly includes a second sensor assembly. ### Claim 21 (depends on 1) The wearable infusion pump assembly of claim 1 further comprising: a disposable housing assembly including the reservoir and a first portion of the fluid delivery system; and a reusable housing assembly including a second portion of the fluid delivery system. ### Claim 22 (depends on 21) The wearable infusion pump assembly of claim 21 further comprising a first valve assembly configured to selectively isolate the pump assembly from the reservoir, a first portion of the first valve assembly is positioned within the disposable housing assembly, and a second portion of the first valve assembly is positioned within the reusable housing assembly. ### Claim 23 (depends on 22) The wearable infusion pump assembly of claim 22 further comprising a second valve assembly configured to selectively isolate a volume sensor assembly from the fluid delivery system outlet, wherein a first portion of the second valve assembly is positioned within the disposable housing assembly, and a second portion of the second valve assembly is positioned within the reusable housing assembly. ### Claim 24 (depends on 21) The wearable infusion pump assembly of claim 21 wherein a first portion of the pump assembly is positioned within the disposable housing assembly, and a second portion of the pump assembly is positioned within the reusable housing assembly. ### Claim 25 (depends on 21) The wearable infusion pump assembly of claim 21 wherein the sensor is positioned within the reusable housing assembly.