Medical infusion device

摘要

A medical infusion device including a chamber characterized by an upper body joined to a lower body by a reversibly collapsible sidewall, affixed to the upper body is a downward extending needle, wherein the upper body has two channels, the first channel fluidly coupled to the needle and the second channel fluidly coupled to the interior of the chamber. The chamber has a collapsed state and an expanded state where chamber is configured to transition from the collapsed state to the expanded state by introducing fluid into the interior of the chamber.

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, affixed to the upper body is a downward extending needle, wherein the upper body comprises two channels that do not intersect in the upper body, further wherein a first channel is fluidly coupled to the needle and a second channel is fluidly coupled to the interior of the chamber, further wherein each channel is configured to receive a fluid from outside of the chamber, 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, the expanded state characterized as the needle less than entirely piercing through the pierceable barrier and the chamber capable of retaining a fluid, 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.