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Publication Number
US-12329941-B2
Publication Date
2025-06-17
Expiration Date
Abstract
A medicament delivery device is presented having a housing with a proximal end and a distal end, a multi-chamber container arranged in the housing, a power assembly having accumulated energy arranged in the housing and configured to act on the multi-chamber container for obtaining and delivering a blended compound inside the multi-chamber container and a manually operable assembly extending from the distal end of the housing and being connected with the power assembly, wherein upon a manual movement of the manually operable assembly the power assembly is forced to move towards the proximal end to pressurize the multi-chamber container and wherein the medicament delivery device further comprises a needle shield sleeve slidably arranged in the housing, the needle shield sleeve being configured to interact with the power assembly to release the accumulated energy after the power assembly has been moved towards the proximal end.
Core Innovation
The invention is a medicament delivery device that includes a housing having a proximal end and a distal end, and a multi-chamber container arranged in the housing. A container holder axially and rotationally fixed to the housing accommodates the multi-chamber container, and a power assembly having accumulated energy is arranged in the housing to obtain and deliver a blended compound inside the multi-chamber container.
The device further includes a manually operable assembly extending from the distal end of the housing and connected with the power assembly. The manually operable assembly is connected with a portion of the power assembly that is axially fixed in the housing by a threaded connection, such that a rotational movement of the manually operable assembly causes linear movement of the power assembly towards the proximal end to pressurize the multi-chamber container.
After the power assembly has moved towards the proximal end, the device uses a needle shield sleeve slidably arranged in the housing that interacts with the power assembly to release the accumulated energy. The needle shield sleeve provides a release sequence with respect to the power assembly movement, including an interaction that prevents needle actuation until unlocked and then permits energy release after pressurization, and lock-out snap-lock features fix the needle shield sleeve in an unlocked position to prevent retraction and accidental needle exposure.
Claims Coverage
The independent claims are clm-00001, clm-00015, and clm-00017. Across these independent claims, the core coverage is directed to a medicament delivery device combining a multi-chamber container for obtaining and delivering a blended compound with a manually operable, threaded/rotational drive that moves a power assembly axially to pressurize the container and release accumulated energy via a needle shield sleeve.
Accumulated-energy power assembly for blended compound obtaining and delivery
A power assembly having accumulated energy, arranged in the housing and configured to act on the multi-chamber container for obtaining and delivering a blended compound inside the multi-chamber container, wherein a portion of the power assembly is axially fixed in the housing.
Threaded connection from distal manual rotation to axial pressurization
A manually operable assembly extending from the distal end of the housing and being connected with the power assembly, wherein the manually operable assembly is connected with the portion of the power assembly that is axially fixed in the housing by a threaded connection, and wherein a rotational movement of the manually operable assembly causes linear movement of the power assembly towards the proximal end to pressurize the multi-chamber container.
Needle shield sleeve interaction for releasing accumulated energy after pressurization
A needle shield sleeve slidably arranged in the housing, configured to interact with the power assembly to release the accumulated energy after the power assembly has moved towards the proximal end.
Needle assembly disposed on container holder proximal end
A needle assembly disposed on a proximal end of the container holder and having a needle, together with a needle shield sleeve slidably arranged in the housing and a power assembly having accumulated energy configured to obtain and deliver a blended compound in the multi-chamber container, where the manually operable assembly connected by a threaded connection causes linear movement toward the proximal end to pressurize and the needle shield sleeve releases accumulated energy after that movement.
Across clm-00001, clm-00015, and clm-00017, the independent-claim coverage is centered on a multi-chamber container with obtaining and delivering of a blended compound by a power assembly with accumulated energy, a manually operable threaded connection that converts user rotation to axial movement to pressurize the multi-chamber container, and a needle shield sleeve that interacts with the power assembly to release accumulated energy after the pressurization movement.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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