# US 12,178,989 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 12,178,989 B2 - Document ID: US12178989B2 - Status: Granted - Kind: B2 - Application number: 18/097,770 - Filed: 2023-01-17 - Published: 2023-07-27 - Granted: 2024-12-31 - Earliest claimed: 2009-12-31 - Assignees: DEKA Products Limited Partnership - Applicants: DEKA Products Limited Partnership - Inventors: Gregory R. Lanier; Larry B. Gray; Richard J. Lanigan; Dean Kamen; Stephen L. Fichera; John M. Kerwin - Web page: https://patentgrep.com/patent/US12178989B2 ## CPC - A61M 5/14216: {Reciprocating piston type} - A61M 5/14224: {Diaphragm type} - A61M 5/14244: {adapted to be carried by the patient, e.g. portable on the body} - A61M 5/14248: {of the skin patch type} - A61M 5/158: Needles {for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body} - A61M 5/16831: {Monitoring, detecting, signalling or eliminating infusion flow anomalies (low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066)} - A61M 5/16881: {Regulating valves} - A61M 5/172: electrical or electronic - A61M 5/36: with means for eliminating or preventing injection or infusion of air into body (dialysis systems, blood oxygenators A61M1/14; haemofiltration equipment A61M1/34; {automatic tube cut-off A61M39/281}) - A61M 39/08: Tubes; Storage means specially adapted therefor - A61M 2005/14268: {with a reusable and a disposable component} - A61M 2005/1587: {suitable for being connected to an infusion line after insertion into a patient} - A61M 2205/0266: Shape memory materials - A61M 2205/273: preventing reuse, e.g. of disposables - A61M 2205/3306: Optical measuring means - A61M 2205/3569: sublocal, e.g. between console and disposable - A61M 2205/3592: using telemetric means, e.g. radio or optical transmission - A61M 2209/086: Docking stations - G16H 20/17: delivered via infusion or injection - G16H 40/67: for remote operation - Y02A 90/10: Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation - 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)} - G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE ## Abstract A wearable infusion pump assembly. The wearable infusion pump assembly includes a reservoir for receiving an infusible fluid and a fluid delivery system configured to deliver the infusible fluid from the reservoir to an external infusion set. The fluid delivery system includes a controller, a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the external infusion set, the pump assembly comprising a pump plunger, the pump plunger having distance of travel, the distance of travel having a starting position and an ending position, at least one optical sensor assembly for sensing the starting position and ending position of the pump plunger distance of travel and sending sensor output to the controller, and a first valve assembly configured to selectively isolate the pump assembly from the reservoir, wherein the controller receives the sensor output and determines the total displacement of the pump plunger. ## Claims ### Claim 1 A wearable infusion pump assembly comprising: a reservoir for receiving an infusible fluid; and a fluid delivery system configured to deliver the infusible fluid from the reservoir to an external infusion set, wherein the fluid delivery system comprising: a controller; a pump assembly for extracting a quantity of infusible fluid from the reservoir and providing the quantity of infusible fluid to the external infusion set, the pump assembly comprising a pump plunger, the pump plunger having distance of travel, the distance of travel having a starting position and an ending position; at least one optical sensor assembly for sensing the starting position and ending position of the pump plunger distance of travel and sending sensor output to the controller, the optical sensor assembly sensing the intensity of light reflected from the pump plunger as a function of distance; and a first valve assembly configured to selectively isolate the pump assembly from the reservoir, wherein the controller receives the sensor output and determines the total displacement of the pump plunger. ### Claim 2 (depends on 1) The wearable infusion pump assembly of claim 1 further comprising wherein the controller correlates the displacement of the pump plunger to a volume of fluid delivered. ### Claim 3 (depends on 2) The wearable infusion pump assembly of claim 2 further comprising wherein the controller, based on the volume of fluid delivered, commands an actuator to actuate the pump plunger to a target position. ### Claim 4 (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 5 (depends on 4) The wearable infusion pump assembly of claim 4 wherein the first portion of the fluid delivery system is positioned within the disposable housing assembly, and the second portion of the fluid delivery system is positioned within the reusable housing assembly. ### Claim 6 (depends on 4) The wearable infusion pump assembly of claim 4 wherein 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 7 (depends on 4) The wearable infusion pump assembly of claim 4 wherein 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 8 (depends on 1) The wearable infusion pump assembly of claim 1 wherein the external infusion set is a detachable external infusion set configured to releasably engage the fluid delivery system. ### Claim 9 A wearable infusion pump assembly comprising: a reservoir; and a fluid delivery system configured to deliver an infusible fluid from the reservoir to an external infusion set, wherein the fluid delivery system comprising: a controller; a pump assembly for extracting a quantity of the infusible fluid from the reservoir and providing the quantity of the infusible fluid to the external infusion set, the pump assembly comprising a pump plunger, the pump plunger having distance of travel, the distance of travel having a starting position and an ending position; at least one optical sensor assembly for sensing the starting position and ending position of the pump plunger distance of travel and sending sensor output to the controller, the optical sensor assembly sensing the intensity of light reflected from the pump plunger as a function of distance; and a first valve assembly configured to selectively isolate the pump assembly from the reservoir, wherein the controller receives the sensor output and determines a total displacement of the pump plunger. ### Claim 10 (depends on 9) The wearable infusion pump assembly of claim 9 wherein the controller receives the sensor output and determines the volume of the fluid delivered. ### Claim 11 (depends on 9) The wearable infusion pump assembly of claim 9 further comprising wherein the controller correlates the displacement of the pump plunger to a volume of fluid delivered. ### Claim 12 (depends on 11) The wearable infusion pump assembly of claim 11 further comprising wherein the controller, based on the volume of fluid delivered, commands an actuator to actuate the pump plunger to a target position. ### Claim 13 (depends on 9) The wearable infusion pump assembly of claim 9 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 14 (depends on 13) The wearable infusion pump assembly of claim 13 wherein the first portion of the fluid delivery system is positioned within the disposable housing assembly, and the second portion of the fluid delivery system is positioned within the reusable housing assembly. ### Claim 15 (depends on 13) The wearable infusion pump assembly of claim 13 wherein 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 16 (depends on 13) The wearable infusion pump assembly of claim 13 wherein 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 17 (depends on 9) The wearable infusion pump assembly of claim 9 wherein the external infusion set is a detachable external infusion set configured to releasably engage the fluid delivery system.