Covidien LP

Anastasia Righter

Christopher Buder

Andrew Koss

In some examples, a mixing syringe includes a fluid housing defining an internal housing chamber for storing a medical agent, and a fluid outlet. An outer plunger is disposed within the internal housing chamber of the fluid housing. The outer plunger includes an outer barrel defining a barrel cavity and an outer plunger head connected to the outer barrel. The outer plunger is adapted for longitudinal movement within the internal housing chamber of the fluid housing. The outer plunger head defines a flow passage whereby, upon movement of the outer plunger the medical agent passes from the internal housing chamber through the flow passage into the barrel cavity of the outer plunger. An inner plunger is adapted for longitudinal movement relative to the outer plunger to force the medical agent through the flow passage of the outer plunger head for disposition through the fluid outlet of the fluid housing.

Mixing syringe

A mixing nozzle includes at least two individual mixing channels dimensioned to create a turbulent flow effect to facilitate dispersion of the components of a medical agent, such as a liquid embolic composition, during delivery, e.g., to vasculature of a subject. In some examples, the mixing nozzle is configured to be mechanically and fluidically connected to a syringe, a catheter, or both the syringe and the catheter.

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Milford, MA, United States of America

Anastasia Righter