# US 9,750,889 B2 · Device for medicament delivery with syringe-like usability having a restraining mechanism > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,750,889 B2 - Document ID: US9750889B2 - Status: Granted - Kind: B2 - Application number: 14/118,318 - Filed: 2012-05-07 - Published: 2014-10-23 - Granted: 2017-09-05 - Earliest claimed: 2011-05-19 - Assignees: SHL Group AB - Applicants: Anders Holmqvist; Maria Hedin - Inventors: Anders Holmqvist; Maria Hedin - Web page: https://patentgrep.com/patent/US9750889B2 ## CPC - A61M 5/31571: {Means preventing accidental administration (for automatic syringes A61M5/20)} - A61M 5/284: {comprising means for injection of two or more media, e.g. by mixing} - A61M 5/31595: {Pre-defined multi-dose administration by repeated overcoming of means blocking the free advancing movement of piston rod, e.g. by tearing or de-blocking} - A61M 5/315: Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod {or piston}; Appliances on the rod for facilitating dosing {; Dosing mechanisms} - A61M 5/31501: {Means for blocking or restricting the movement of the rod or piston (A61M5/5013 takes precedence)} - A61M 5/31525: {Dosing (burettes, pipettes B01L3/02)} - A61M 5/31526: {by means of stepwise axial movements, e.g. ratchet mechanisms or detents} - A61M 5/3156: {using volume steps only adjustable in discrete intervals, i.e. individually distinct intervals} - A61M 5/3157: {Means providing feedback signals when administration is completed (A61M5/20 takes precedence)} - A61M 2005/3154: {limiting maximum permissible dose} - 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 Device for medicament delivery with syringe-like usability having a restraining mechanism A device for medicament delivery with syringe-like usability comprising at least one grip, at least one medicament container holder, and at least one plunger rod being substantially rotationally fixed relatively to the grip. The medicament container holder (13) is movable towards the grip in a longitudinal direction of the device, and rotation of at least one rotatable part (40), which is rotatable relatively to the grip and substantially inhibits movement of the plunger rod (20) in a longitudinal direction for dose delivery when in at least one locking position until being rotated, is restrained by at least one restraining member (42) abutting or being connected to the rotatable part (40) and the grip (30) until the medicament container holder is moved towards the grip for interacting with the at least one restraining member. ## Claims ### Claim 1 A device for medicament delivery with syringe-like usability, comprising: a grip, wherein the grip comprises separate proximal and distal grip parts with at least one projection; a medicament container holder that is movable toward the grip in a longitudinal direction of the device; a plunger rod that is substantially rotationally fixed relative to the grip by cooperating with the at least one projection, whereby the proximal and distal grip parts are rotationally fixed relative to each other; a rotatable part that is rotatable relative to the grip and that, when in a locking position, inhibits movement of the plunger rod in the longitudinal direction for dose delivery until being rotated; and a restraining member that restrains rotation of the rotatable part and abuts or connects to the rotatable part and the grip until the medicament container holder is moved toward the grip for interacting with the restraining member. ### Claim 2 (depends on 1) The device of claim 1, wherein the restraining member includes an arm. ### Claim 3 (depends on 2) The device of claim 2, wherein the arm is integral with the rotatable part. ### Claim 4 (depends on 2) The device of claim 2, wherein the arm restrains rotation of the rotatable part by engagement with a slot or projection of the grip. ### Claim 5 (depends on 1) The device of claim 1, wherein the restraining member is pushed or deflected by the medicament container holder when the medicament container holder is moved toward the grip. ### Claim 6 (depends on 1) The device of claim 1, wherein the medicament container holder is movable in the longitudinal direction by being screwed into the grip. ### Claim 7 (depends on 1) The device of claim 1, wherein the device is primed or contents of a medicament container are mixed when the medicament container holder is moved toward the grip. ### Claim 8 (depends on 7) The device of claim 7, wherein the medicament container has two chambers holding the contents that are mixed when the medicament container holder is moved toward the grip. ### Claim 9 (depends on 7) The device of claim 7, wherein the device de-airs the medicament container after the contents have been mixed. ### Claim 10 (depends on 1) The device of claim 1, wherein the rotatable part is substantially fixed in the longitudinal direction relative to the grip. ### Claim 11 (depends on 1) The device of claim 1, wherein a projection of the rotatable part interacts with a channel or a projection of the plunger rod. ### Claim 12 (depends on 1) The device of claim 1, wherein rotating the rotatable part relative to the plunger rod makes the device ready for actuation. ### Claim 13 (depends on 12) The device of claim 12, wherein the rotatable part is rotated by rotating a knob that interacts with the rotatable part. ### Claim 14 (depends on 1) The device of claim 1, further comprising an indicator drum that indicates a delivery position, in which the plunger rod is movable in the longitudinal direction relative to the grip for dose delivery, or a locking position. ### Claim 15 (depends on 14) The device of claim 14, wherein the indicator drum is connected to a knob or the rotatable part over a resilient member. ### Claim 16 (depends on 1) The device of claim 1, wherein the plunger rod has a plurality of steps provided in a threaded manner. ### Claim 17 (depends on 16) The device of claim 16, wherein the steps are formed by alternating parallel and perpendicular grooves or projections. ### Claim 18 A device for medicament delivery with syringe-like usability, comprising: at least one grip, wherein the grip comprises separate proximal and distal grip parts having at least one projection; at least one medicament container holder; and at least one rotatable part which is rotatable relatively to a plunger rod and the grip and interacts with the grip to substantially inhibit movement of the plunger rod in a longitudinal direction for dose delivery when the plunger rod is in at least one locking position until being rotated; wherein the plunger rod is substantially rotationally fixed relative to the grip by cooperating with the at least one projection, whereby the proximal and distal grip parts are rotationally fixed relative to each other; the medicament container holder is movable toward the grip in the longitudinal direction of the device, and rotation of the rotatable part is restrained by at least one restraining member abutting or being connected to the rotatable part and the grip until the medicament container holder is moved toward the grip for interacting with the at least one restraining member.