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 the transfer mechanism and the firing mechanism in both the first stage of operation and the second stage of operation,wherein the injection conduit has a position that is fluidly isolated from the second chamber, the injector further comprising a transfer control that is manually operable to operate the transfer mechanism in the first stage of operation and to fluidly communicate the injection conduit with the second chamber in the first stage of operation.
1 Assignment
0 Petitions
Accused Products
Abstract
An injector (10) for injecting a medicament into a patient. The injector includes a container (18) defining a first chamber (22), which contains a fluid therein, and a second chamber (23). The injector also includes an injection conduit (126) 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 (62) is in powering association with the firing mechanism to drive firing mechanism in the first and second stages.
654 Citations
17 Claims
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1. An injector for injecting a medicament into a patient, comprising:
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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 the transfer mechanism and the firing mechanism in both the first stage of operation and the second stage of operation, wherein the injection conduit has a position that is fluidly isolated from the second chamber, the injector further comprising a transfer control that is manually operable to operate the transfer mechanism in the first stage of operation and to fluidly communicate the injection conduit with the second chamber in the first stage of operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An injector for injecting medicament into a patient, comprising:
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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. - View Dependent Claims (17)
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Specification