TWO-STAGE RECONSTITUTING INJECTOR
First Claim
1. An injector for injecting a medicament into a patient, comprising:
- a container defining;
a first chamber containing a fluid, anda second chamber;
an injection conduit configured for directing the fluid fired from the container into the patient;
a transfer mechanism operable by a user to transfer the fluid from the first chamber to the second chamber in a first stage of operation;
a firing mechanism operable by the user for firing the fluid from the second chamber through the injection conduit in a second stage of operation; and
an energy source in powering association with the transfer and firing mechanisms to drive transfer and firing mechanisms in both the first and second stages.
2 Assignments
0 Petitions
Accused Products
Abstract
An injector for injecting a medicament into a patient. The injector includes a container defining a first chamber, which contains a fluid therein, and a second chamber. The injector also includes an injection conduit configured for directing the fluid fired from the container into the patient. A transfer mechanism is operable by a user to transfer the fluid from the first chamber to the second chamber in a first stage of operation, and a firing mechanism is operable by the user for firing the fluid from the second chamber through the injection conduit in a second stage of operation. An energy source is in powering association with the firing mechanism to drive firing mechanism in the first and second stages.
-
Citations
19 Claims
-
1. An injector for injecting a medicament into a patient, comprising:
-
a container defining; a first chamber containing a fluid, and a second chamber; an injection conduit configured for directing the fluid fired from the container into the patient; a transfer mechanism operable by a user to transfer the fluid from the first chamber to the second chamber in a first stage of operation; a firing mechanism operable by the user for firing the fluid from the second chamber through the injection conduit in a second stage of operation; and an energy source in powering association with the transfer and firing mechanisms to drive transfer and firing mechanisms in both the first and second stages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. An injector for injecting a medicament into a patient, comprising:
-
a container defining; a first chamber containing a fluid, and a second chamber; a firing mechanism configured for transferring the fluid from the first chamber to the second chamber in a first stage of operation, and for firing the fluid from the second chamber in a second stage of operation; an injection conduit configured for directing the fluid fired from the container into the patient; an energy source in powering association with the firing mechanism to drive firing mechanism in the first and second stages; a trigger device associated with the energy source and the firing mechanism and being operable in a first triggering stage which causes the firing mechanism to operate in the first stage of operation, wherein the triggering device is configured such that after the firing mechanism has operated in the first stage of operation, the triggering device is operable in a second triggering stage which causes the firing mechanism to operate in the second stage of operation.
-
-
18. An injector for injecting medicament into a patient, comprising:
-
a container comprising a fluid chamber containing a medicament therein, the fluid chamber comprising a needle hub at the distal end thereof, an injection conduit configured for directing the medicament fired from the container into the patient, the injection conduit having a position that is fluidly incommunicated with the fluid chamber; a firing mechanism operable by the user for firing the medicament from the fluid chamber through the injection conduit; an energy source in powering association with the firing mechanism to drive firing mechanism; and a transfer control operable to fluidly communicate the injection conduit with the needle hub of the fluid chamber, the transfer control comprising a cap associated with the container and disposed to cover the injection conduit; wherein the cap is separable from the injection conduit upon operating the transfer control to fluidly communicate the injection conduit with the needle hub.
-
-
19. The injector of claim 20, wherein the injection conduit comprises a communicating needle portion, the transfer control being operable to relatively move the communicating needle portion with respect to the fluid chamber to pierce the container adjacent the needle hub to fluidly communicate the fluid chamber with the communicating needle portion.
Specification