Portable drug mixing and delivery device and associated methods

Inventors

Constantineau, Cole • Stepanian, Christopher • Standley, Adam • Buchine, Brent • Chagnon, Jeffrey Thomas • Bruehwiler, Michel

Assignees

Windgaplegacyco LLC

Abstract

A telescoping portable drug mixing and delivery device configured to store a dry medication separately from a liquid component, wherein a tensile force applied between the housing and a cap opens a valve and causes displacement of a fluid from a first chamber to a second chamber while simultaneously mixing the fluid with a dry medicament prior to injection. An extendable needle guard is provided over the delivery assembly which prevents premature injection as well as inadvertent sticks or other cross contamination of a needle. The needle guard can also form part of a secondary trigger mechanism which injects the reconstituted drug after the mixing stage is complete.

Core Innovation

The portable medication mixing and delivery device includes a housing with a first chamber, a second chamber, and a compression chamber, each having a selectively changeable effective volume. A fluidic channel is disposed between the first chamber and the second chamber, and a seal is positioned between the first chamber and the compression chamber. A movable body is disposed between the first chamber and the second chamber, and a mixing actuation device coupled to the movable body facilitates selective reduction of the effective volume of the first chamber and selective reduction of the effective volume of the compression chamber, and displaces a liquid stored in the first chamber into the second chamber via the fluidic channel.

The device further includes a delivery assembly configured to be in fluid communication with the second chamber. Activation of the mixing actuation device transfers the liquid from the first chamber into the second chamber, and the delivery assembly is configured to receive fluid from the second chamber after mixing. In particular configurations, an intermediate stopping mechanism prevents fluid communication from the second chamber to the delivery assembly until a delivery actuation device is activated.

In additional configurations, the mixing and delivery functions are driven by an actuation assembly that uses multiple displacement components and multiple stored energy sources. A multi-cam system with pre-loaded energy directs a first displacement component to displace liquid stored in a first chamber through the fluidic channel into the second chamber upon triggering a first trigger, and a second trigger releases additional energy to direct a second displacement component to displace liquid stored in the second chamber to exit through the delivery assembly.

Claims Coverage

The partial claims include three independent claims. Across these independent claims, the inventive coverage centers on selectively changeable chamber effective volumes with movable-body or displacement-component actuation, followed by delivery via a delivery assembly, using either a multi-cam system with multiple triggers and pre-loaded energy or an actuation assembly with independently released spring-driven displacement components.

Across the independent claims, the inventive subject matter requires selective changeable effective volumes and a movable-body or displacement-component actuation that transfers liquid from a first chamber to a second chamber through a fluidic channel, followed by delivery through a delivery assembly in fluid communication with the second chamber. One independent claim emphasizes a multi-cam system with first and second triggers and sequential energy release to drive first and second displacement components, while another emphasizes first and second spring-driven displacement components with actuation steps that move in different directions to effect transfer and delivery.

Stated Advantages

Documented Applications