Wearable automatic injection device for controlled delivery of therapeutic agents
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-031/00
A61M-005/20
A61M-005/142
A61M-005/14
A61M-005/145
A61M-005/32
A61M-005/48
A61M-005/50
A61M-005/158
A61M-005/31
A61M-005/315
A61M-005/34
출원번호
US-0872949
(2015-10-01)
등록번호
US-9821117
(2017-11-21)
발명자
/ 주소
Anderson, Philip D.
Julian, Joseph F.
Laurusonis, Linas P.
Parmer, Timothy
Yoch, Travis
Jang, Samuel M.
Corrigan, Sean
Matusaitis, Tomas
Fienup, William
Strahm, Chris
출원인 / 주소
AbbVie Biotechnology Ltd
대리인 / 주소
McCarter & English, LLP
인용정보
피인용 횟수 :
0인용 특허 :
192
초록▼
Exemplary embodiments provide wearable automatic injection devices for subcutaneously injecting a therapeutic agent into a patient's body at controlled rates, for example, in a single bolus. Exemplary embodiments provide methods for assembling wearable automatic injection devices for subcutaneously
Exemplary embodiments provide wearable automatic injection devices for subcutaneously injecting a therapeutic agent into a patient's body at controlled rates, for example, in a single bolus. Exemplary embodiments provide methods for assembling wearable automatic injection devices for subcutaneously injecting a therapeutic agent into a patient's body at controlled rates. Exemplary embodiments provide methods for using wearable automatic injection devices for subcutaneously injecting a therapeutic agent into a patient's body at controlled rates.
대표청구항▼
1. A wearable automatic injection device for providing a subcutaneous injection of a therapeutic agent into a patient, the wearable automatic injection device comprising: a housing comprising a patient contact portion securable to the patient;an injection assembly moveably disposed in the housing ha
1. A wearable automatic injection device for providing a subcutaneous injection of a therapeutic agent into a patient, the wearable automatic injection device comprising: a housing comprising a patient contact portion securable to the patient;an injection assembly moveably disposed in the housing having an injection needle for insertion into the patient;a vessel provided in the housing for holding the therapeutic agent;a syringe needle fluidically couplable to the vessel and the injection assembly;a plunger moveably disposed in the vessel for ejecting the therapeutic agent from the vessel into the injection assembly;a plunger actuation mechanism for actuating the plunger using a mechanical or hydraulic mechanism within the vessel; anda transfer mechanism defining a sterile fluid conduit between the syringe needle and the injection needle. 2. The wearable automatic injection device of claim 1, further comprising: an inspection window disposed in the housing that allows the user to inspect the therapeutic agent held by the vessel from outside the housing. 3. The wearable automatic injection device of claim 1, further comprising: a pierceable septum separating the syringe needle from the sterile conduit in a pre-injection state. 4. The wearable automatic injection device of claim 3, wherein the syringe needle is spaced from the pierceable septum when the device is in the pre-injection state, and wherein the syringe needle pierces the septum when the device is in an injection state. 5. The wearable automatic injection device of claim 3, wherein the vessel moves towards the transfer mechanism in an injection state causing the syringe needle to pierce the septum and establishing fluid communication between the syringe needle and the injection needle. 6. The wearable automatic injection device of claim 1, wherein the vessel is moveably disposed within the housing. 7. The wearable automatic injection device of claim 6, further comprising: a vessel actuator for automatically actuating the vessel from a first position in the pre-injection state to a second position in an injection state. 8. The wearable automatic injection device of claim 1, wherein the transfer mechanism comprises an adapter coupled to the syringe needle and the injection needle establishing the sterile fluid conduit between the syringe needle and the injection needle. 9. The wearable automatic injection device of claim 8, wherein a first portion of the adapter extends from the vessel substantially parallel to a longitudinal axis. 10. The wearable automatic injection device of claim 9, wherein a second portion of the adapter extends from the first portion of the adapter substantially perpendicular to the longitudinal axis. 11. The wearable automatic injection device of claim 10, wherein the second portion of the adapter couplable to the injection needle. 12. The wearable automatic injection device of claim 10, wherein the first portion of the adapter and the second portion of the adapter are formed integrally. 13. The wearable automatic injection device of claim 8, wherein the first portion of the adapter substantially envelopes a distal end of the vessel. 14. The wearable automatic injection device of claim 8, wherein the adapter enables the injection needle to extend at approximately 90 degrees relative to the longitudinal axis. 15. The wearable automatic injection device of claim 1, wherein the sterile fluid conduit is a centrally extending channel in the transfer mechanism through which the therapeutic agent flows from the syringe needle to the injection needle. 16. The wearable automatic injection device of claim 15, wherein the fluid conduit comprises raised wall portions extending along the edges of the centrally extending channel to constrain the therapeutic agent to the channel. 17. The wearable automatic injection device of claim 1, further comprising: an injection button including the transfer mechanism. 18. The wearable automatic injection device of claim 1, wherein the plunger actuation mechanism and the patient contact portion are non-sterile. 19. The wearable automatic injection device of claim 1, wherein the housing is non-sterile. 20. The wearable automatic injection device of claim 1, wherein the plunger actuation mechanism includes a flow restrictor to regulate a rate of delivery of the therapeutic agent into the patient. 21. The wearable automatic injection device of claim 1, wherein the plunger actuation mechanism comprises a biasing mechanism. 22. The wearable automatic injection device of claim 21, wherein the plunger actuation mechanism further comprises: a fusee; anda tether coupling the biasing mechanism to the fusee and the plunger. 23. The wearable automatic injection device of claim 22, wherein the plunger actuation mechanism further comprises: a damping mechanism coupled to the fusee for regulating the movement of the fusee; anda gear train including one or more gears for coupling the fusee to the damping mechanism. 24. The wearable automatic injection device of claim 23, wherein the damping mechanism comprises a viscous damper. 25. The wearable automatic injection device of claim 23, wherein the damping mechanism comprises an escapement mechanism. 26. The wearable automatic injection device of claim 25, wherein the escapement mechanism is a swiss lever escapement. 27. The wearable automatic injection device of claim 25, wherein the escapement mechanism is a runaway escapement. 28. The wearable automatic injection device of claim 21, wherein the plunger actuation mechanism further comprises: one or more ball bearings for coupling the biasing mechanism to the plunger. 29. The wearable automatic injection device of claim 28, wherein the plunger actuation mechanism further comprises: a damping mechanism coupled to the biasing mechanism and the ball bearings for regulating the movement of the ball bearings. 30. The wearable automatic injection device of claim 29, wherein the damping mechanism comprises a viscous damper. 31. The wearable automatic injection device of claim 1, wherein the plunger actuation mechanism further comprises: a source of a working fluid for providing a hydraulic pressure to eject the therapeutic agent from the vessel; anda fluid conduit provided between the source of the working fluid and the plunger. 32. The wearable automatic injection device of claim 31, wherein the plunger actuation mechanism further comprises: a damping mechanism coupled to the vessel and the source of the working fluid to regulate the ejection of the therapeutic agent from the vessel. 33. The wearable automatic injection device of claim 32, wherein the damping mechanism comprises a flow restrictor for maintaining the hydraulic pressure downstream of the flow restrictor toward the vessel at a lower pressure that the hydraulic pressure upstream of the flow restrictor toward the source of the working fluid. 34. The wearable automatic injection device of claim 1, further comprising: a needle locking mechanism for automatically locking the injection needle in a retracted position within the housing in a post-injection state. 35. The wearable automatic injection device of claim 34, wherein the needle locking mechanism comprises: a barrier mechanism moveably disposed over an injection needle aperture in the housing;wherein the injection needle aperture is open and allows the injection needle to protrude outside the housing when the barrier mechanism is in a first position; andwherein the injection needle aperture is closed and prevents the injection needle from protruding outside the housing when the barrier mechanism is in a second position. 36. The wearable automatic injection device of claim 34, wherein the needle locking mechanism comprises: a needle lock release mechanism responsive to retraction of the injection assembly from an extended position in the injection state to a retracted position in the post-injection state; anda pivoting member coupled to the injection needle and to the needle lock release mechanism;wherein activation of the needle lock release mechanism causes the pivoting member to pivot the injection needle away from an injection needle aperture in the housing. 37. The wearable automatic injection device of claim 1, wherein the therapeutic agent comprises a protein in a solution. 38. The wearable automatic injection device of claim 37, wherein the protein comprises any of a fusion protein, an enzyme, an antibody, or an antigen-binding fragment thereof in a solution. 39. The wearable automatic injection device of claim 38, wherein the antibody is a dual specificity antibody. 40. The wearable automatic injection device of claim 1, wherein the therapeutic agent comprises is a TNFα inhibitor.
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이 특허에 인용된 특허 (192)
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