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NZ758737B2 - Auto-injector - Google Patents
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NZ758737B2 - Auto-injector - Google Patents

Auto-injector

Info

Publication number
NZ758737B2
NZ758737B2 NZ758737A NZ75873718A NZ758737B2 NZ 758737 B2 NZ758737 B2 NZ 758737B2 NZ 758737 A NZ758737 A NZ 758737A NZ 75873718 A NZ75873718 A NZ 75873718A NZ 758737 B2 NZ758737 B2 NZ 758737B2
Authority
NZ
New Zealand
Prior art keywords
driver
configuration
gear
shuttle
move
Prior art date
Application number
NZ758737A
Other versions
NZ758737A (en
Inventor
Rachel Arnott
Scott Barton
Bart E Burgess
Richard Gildersleeve
Alexei Goraltchouk
Bryan C Grygus
Daniel Halbig
Christopher Kanel
Trevor Langley
Alfred Marino
Original Assignee
Regeneron Pharmaceuticals Inc
Filing date
Publication date
Application filed by Regeneron Pharmaceuticals Inc filed Critical Regeneron Pharmaceuticals Inc
Priority to NZ799581A priority Critical patent/NZ799581B2/en
Priority to NZ799576A priority patent/NZ799576B2/en
Priority to NZ799577A priority patent/NZ799577B2/en
Priority to NZ799587A priority patent/NZ799587B2/en
Priority to NZ799580A priority patent/NZ799580B2/en
Priority to NZ799582A priority patent/NZ799582B2/en
Priority to NZ799586A priority patent/NZ799586B2/en
Priority claimed from PCT/US2018/031077 external-priority patent/WO2018204779A1/en
Publication of NZ758737A publication Critical patent/NZ758737A/en
Publication of NZ758737B2 publication Critical patent/NZ758737B2/en

Links

Classifications

    • A—HUMAN NECESSITIES
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    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M2005/14208—Pressure infusion, e.g. using pumps with a programmable infusion control system, characterised by the infusion program
    • A—HUMAN NECESSITIES
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    • A61M2005/14252—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body of the skin patch type with needle insertion means
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    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
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Abstract

injection device includes a carrier (202), a needle (306, 308), a driver (320) coupled to the needle, the driver being slidable relative to the carrier between a retracted configuration and a deployed configuration, a shuttle (340) configured to move the driver between the retracted configuration and the deployed configuration, and a stop (240) coupled to the carrier configured to move from a first configuration to a second configuration, wherein the stop is configured to impede longitudinal movement of the shuttle to maintain the driver in the deployed configuration, and movement of the stop from the first configuration to the second configuration allows the shuttle to move the driver from the deployed configuration to the retracted configuration. The current invention offers a simpler self injection device to decrease user errors or discomfort by requiring less separate user actions during an injection procedure.

Claims (18)

THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:
1. An injection device, comprising: a needle; a driver coupled to the needle, the driver being slidable relative to the carrier between a retracted configuration and a deployed configuration; a shuttle configured to move in a longitudinal direction to move the driver between the retracted configuration and the deployed configuration; and a stop d to the carrier and configured to move from a first configuration to a second uration, wherein the stop is configured to impede longitudinal movement of the shuttle to in the driver in the ed configuration, and wherein nt of the stop from the first configuration to the second configuration allows the shuttle to move further in the udinal direction to move the driver to retract the needle.
2. The injection device of claim 1, wherein the shuttle is movable from a first position to a second position, and from the second position to a third position, and wherein: when the shuttle is in the first position, the driver is in the retracted configuration; when the shuttle is in the second position, the driver is in the deployed configuration; and when the shuttle is in the third position, the driver is retracted.
3. The ion device of claim 2, wherein the first position and the third position are different.
4. The ion device of claim 3, wherein the shuttle moves in one direction along an axis to move from the first position to the second position, and from the second position to the third position.
5. The injection device of claim 4, wherein the shuttle is configured to move only in the one ion.
6. An injection device, comprising: a carrier, a needle; a driver coupled to the needle, the driver being slidable relative to the carrier between a retracted configuration and a deployed configuration; a shuttle configured to move the driver n the retracted configuration and the deployed configuration; a stop coupled to the carrier and ured to move from a first configuration to a second configuration, wherein the stop is configured to maintain the driver in the deployed configuration, and wherein movement of the stop from the first configuration to the second configuration allows the shuttle to move the driver from the from the deployed uration to the retracted configuration; a deployment gear coupled to the carrier, and a retraction gear coupled to the carrier, wherein: the driver is coupled to the deployment gear and the tion gear; the shuttle includes a rack gear configured to engage the deployment gear and the tion gear, wherein direct engagement of the rack gear with the deployment gear moves the driver from the retracted configuration to the deployed configuration, and direct engagement of the rack gear with the retraction gear moves the driver from the deployed uration to the retracted configuration.
7. The injection device of claim 6, wherein the rack gear directly ts only one of the ment gear and the retraction gear at any time.
8. The injection device of claim 6, wherein the rack gear is further configured to: drive rotation of the deployment gear in a first direction to move the driver from the retracted configuration to the deployed configuration; and drive rotation of the retraction gear in the first direction to move the driver from the deployed configuration to the retracted configuration.
9. The injection device of claim 6, wherein the driver includes a first rack and a second rack, wherein the first rack is configured to engage the deployment gear, and wherein the second rack is configured to engage the retraction gear.
10. The injection device of claim 9, wherein the first rack and the second rack are located on opposing sides of the driver.
11. The injection device of claim 1, wherein the shuttle is configured to move along a first axis, the driver is ured to move along a second axis, and the first axis and the second axis are perpendicular to one another.
12. The injection device of claim 1, further including an impediment, wherein, before activation, the driver is in contact with the ment, and is prevented from moving out of the retracted configuration by the impediment.
13. The injection device of claim 12, further including a housing enclosing the carrier, wherein the impediment is integral with the housing.
14. The injection device of claim 13, wherein movement of the carrier ve to the impediment moves the driver out of contact with the impediment, allowing the driver to move from the retracted configuration to the deployed configuration.
15. The injection device of claim 14, r including a resilient member coupled to the shuttle, wherein, after the driver is moved out of contact with the impediment, the resilient member is configured to expand from a first compressed state to a second compressed state to move the shuttle from a first position to a second position.
16. The injection device of claim 15, wherein, after the stop is moved from the first configuration to the second uration, the resilient member is configured to expand from the second compressed state to a g state to move the shuttle from the second position to a third position.
17. The ion device of claim 1, further comprising: a first gear coupled to the carrier; wherein the stop has a first end fixed to a remainder of the carrier and a free second end, and the shuttle includes a rack gear configured to drive rotation of the first gear, wherein the rotation of the first gear moves the driver from the retracted configuration to the deployed configuration, and wherein the free second end of the stop is configured to at least arily prevent movement of the shuttle while the driver is in the deployed configuration.
18. The injection device of claim 17, further including a second gear coupled to the carrier, wherein flexion of the stop about the fixed first end, while the free second end is in contact with the e, causes the shuttle to slide relative to the stop and drive rotation of the second gear, and wherein the rotation of the second gear moves the driver from the deployed configuration to the retracted configuration. SUBSTITUTE SHEET (RULE 26) SUBSTITUTE SHEET (RULE 26) SUBSTITUTE SHEET (RULE 26) SUBSTITUTE SHEET (RULE 26) Transiatian “$355 ‘ E Tauch g Sensar SUBSTITUTE SHEET (RULE 26) ‘ESGZ SUBSTITUTE SHEET (RULE 26) SUBSTITUTE SHEET (RULE 26) SUBSTITUTE SHEET (RULE 26) SUBSTITUTE SHEET (RULE 26)
NZ758737A 2018-05-04 Auto-injector NZ758737B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NZ799581A NZ799581B2 (en) 2018-05-04 Auto-injector
NZ799576A NZ799576B2 (en) 2018-05-04 Auto-injector
NZ799577A NZ799577B2 (en) 2018-05-04 Auto-injector
NZ799587A NZ799587B2 (en) 2018-05-04 Auto-injector
NZ799580A NZ799580B2 (en) 2018-05-04 Auto-injector
NZ799582A NZ799582B2 (en) 2018-05-04 Auto-injector
NZ799586A NZ799586B2 (en) 2018-05-04 Auto-injector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762502278P 2017-05-05 2017-05-05
PCT/US2018/031077 WO2018204779A1 (en) 2017-05-05 2018-05-04 Auto-injector

Publications (2)

Publication Number Publication Date
NZ758737A NZ758737A (en) 2025-08-29
NZ758737B2 true NZ758737B2 (en) 2025-12-02

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