Devices for fluidization and delivering a powdered agent

Abstract

A medical device including an application device with a first fluid path and a container movably attached to the application device. The container and the application device have a second fluid path therethrough, the container includes an inner chamber that is intermediate proximal and distal portions of the second fluid path, the inner chamber is fluidly isolated from the proximal portion of the second fluid path at a first position of the container, and the inner chamber is fluidly coupled to the proximal and distal portions of the second fluid path at a second position of the container. The first fluid path bypasses the container and the passage of fluid through the first fluid path is separately controllable from the passage of fluid through the second fluid path.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Application No. 62 / 740,242, filed October 2, 2018, U.S. Provisional Application No. 62 / 747,863, filed October 19, 2018, U.S. Provisional Application No. 62 / 747,863, filed April 10, 2019 62 / 831,900 and the benefit of priority to U.S. Provisional Application No. 62 / 848,226, filed May 15, 2019, each of which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to medical systems and devices for delivering pressurized fluids, and more particularly to methods and tools for controlling a hemostatic agent and achieving proper tissue contact with the agent at a suitable pressure and flow rate. Background technique [0004] Delivery systems and devices are used to deliver various substances, such as powders, during medical procedures. These procedures may involve the use of a fluid, eg, a propellant fluid, to deliver the ...

AI Technical Summary

Problems solved by technology

Multiple regulators inhibit the ability to integrate regulators with fluid cylinders, are often expensive, and make it difficult to integrate regulators in hand-held devices for easy operation

Additionally, conventional regulators include gaskets or O-rings that create friction against the regulator, making it difficult to dispense fluid at a consistent flow rate and at a consistent pressure

These disadvantages prevent the proper amount of fluid and / or material from being expelled at the target site, reducing accuracy and increasing the time and cost of procedures using these conventional devices

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