# US 12,178,990 B2 · Component positioning of a linear shuttle pump > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,178,990 B2 - Document ID: US12178990B2 - Status: Granted - Kind: B2 - Application number: 17/721,613 - Filed: 2022-04-15 - Published: 2022-07-28 - Granted: 2024-12-31 - Earliest claimed: 2019-11-05 - Assignees: Insulet Corporation - Applicants: Insulet Corporation - Inventors: Andrew Bowser; Steven Cardinali - Web page: https://patentgrep.com/patent/US12178990B2 ## CPC - A61M 5/14244: {adapted to be carried by the patient, e.g. portable on the body} - A61M 5/1452: {pressurised by means of pistons} - A61M 5/168: Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters - A61M 2205/3306: Optical measuring means - 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 Disclosed herein are wearable drug delivery devices and methods for component positioning of a linear shuttle pump. In some approaches, a pump may include a pump chamber operably coupled with a piston, and a detent apparatus, wherein the detent apparatus comprises a detent body, a detent arm, and a detent engagement member. The detent engagement member may be retained in direct physical contact with first or second arrest locations of either the detent body or the detent arm. The pump may further include a piston grip coupled to the piston, the piston grip including a grip component engaged with an exterior of the piston. Movement of the piston grip may cause the piston to move axially relative to the pump chamber to control receipt and delivery of a liquid drug. ## Claims ### Claim 1 A pump, comprising: a pump chamber operably coupled with a piston; a sensor; and a piston grip coupled to the piston and comprising a sensor plate having an opening, wherein movement of the piston grip causes the piston to move axially relative to the pump chamber to control receipt and delivery of a liquid drug and wherein the opening is aligned with the sensor during a part of the movement of the piston grip. ### Claim 2 (depends on 1) The pump of claim 1, wherein the sensor plate is provided at a fixed position on the grip body and the opening moves relative to the sensor plate. ### Claim 3 (depends on 1) The pump of claim 1, the piston grip further comprising a solid portion that is aligned with the sensor during a second part of the movement of the piston grip. ### Claim 4 (depends on 1) The pump of claim 1, wherein the sensor plate is provided distal of the piston. ### Claim 5 (depends on 1) The pump of claim 1, wherein the sensor is an optical sensor and the pump further comprises a light source. ### Claim 6 (depends on 5) The pump of claim 5, wherein the optical sensor comprises a photodiode. ### Claim 7 (depends on 1) The pump of claim 1, the piston grip comprising a grip body extending on opposite sides of the piston. ### Claim 8 (depends on 1) The pump of claim 1, further comprising a sensor block configured to position the sensor proximate to the piston grip. ### Claim 9 (depends on 1) The pump of claim 1, further comprising a set of side springs coupled to the piston grip, wherein the set of side springs provide a spring force to bias the piston grip toward the pump chamber. ### Claim 10 A reciprocating pump, comprising: a pump chamber operably coupled with a piston; a sensor; and a piston grip coupled to the piston and comprising a sensor plate having an opening, wherein movement of the piston grip causes the piston to move axially relative to the pump chamber to control receipt and delivery of a liquid drug. ### Claim 11 (depends on 10) The reciprocating pump of claim 10, wherein the opening is aligned with the sensor during a part of the movement of the piston grip. ### Claim 12 (depends on 10) The reciprocating pump of claim 10, wherein the sensor plate is provided at a fixed position on the grip body and the opening moves relative to the sensor plate. ### Claim 13 (depends on 10) The reciprocating pump of claim 10, the piston grip further comprising a solid portion that is aligned with the sensor during a part of the movement of the piston grip. ### Claim 14 (depends on 10) The reciprocating pump of claim 10, wherein the sensor plate is provided distal of the piston. ### Claim 15 (depends on 10) The reciprocating pump of claim 10, wherein the sensor is an optical sensor and the pump further comprises a light source. ### Claim 16 (depends on 15) The reciprocating pump of claim 15, wherein the optical sensor comprises a photodiode. ### Claim 17 (depends on 10) The reciprocating pump of claim 10, the piston grip comprising a grip body extending on opposite sides of the piston. ### Claim 18 (depends on 10) The reciprocating pump of claim 10, further comprising a sensor block configured to position the sensor proximate to the piston grip. ### Claim 19 (depends on 10) The reciprocating pump of claim 10, further comprising a set of side springs coupled to the piston grip, wherein the set of side springs provide a spring force to bias the piston grip toward the pump chamber.