MEDICAL INFUSION DEVICE AND METHODS OF USE

摘要

A medical infusion device including a chamber characterized by an upper body joined to a lower body via a reversibly collapsible sidewall. The upper body has a first channel fluidly coupled to a needle and a second channel fluidly coupled to an interior of the chamber. The chamber transitions from a collapsed state to the expanded state to retract the needle by introducing fluid into the interior of the chamber through the second channel

主权项

1. A medical infusion device comprising:
a chamber characterized by an upper body joined to a lower body by a reversibly collapsible sidewall, wherein the upper body comprises a first channel fluidly coupled to a needle and a second channel fluidly coupled to an interior of the chamber at a position distinct and separate from the first channel, the lower body comprising a pierceable barrier that can be pierced by the needle; wherein the chamber has a collapsed state and an expanded state, the collapsed state characterized as the sidewall being collapsed and the needle piercing entirely through the pierceable barrier to deliver a fluid outside of the device, the expanded state characterized as the needle less than entirely piercing through the pierceable barrier, wherein the chamber is configured to transition from the collapsed state to the expanded state by introducing fluid into the interior of the chamber through the second channel.