Subcutaneous infusion device and device for insertion of a cannula of an infusion device and method

摘要

An infusion device including a site and a set for delivery of a substance to a patient. The site can include a cannula that is introduced into a subcutaneous layer of skin of the patient. The set can be coupled to the site by placing the set over the site and moving the set from an unlocked to a locked position. The set can be oriented at multiple rotational orientations with respect to the site, and can be coupled and uncoupled with the site multiple times. Also included is a device for inserting a subcutaneous infusion device into a subcutaneous layer of skin of a patient. Some devices automatically retract a needle used to introduce the cannula. Upon full introduction of the needle and associated cannula of the subcutaneous infusion device into a subcutaneous layer of skin of a patient, the device can move the needle into a retracted state.

主权项

1. A device for subcutaneously introducing a liquid to a body of a patient, comprising:
a first member with a connection port for coupling of a conduit for supplying a liquid, the first member comprising a first arm and a second arm; and a second member with a hub and a cannula protruding therefrom for introduction in a body of a patient, wherein the first member and the second member are configured such that they can be rotated and connected relative to one another in a plurality of positions and in every relative position be fluidly coupled for introducing a liquid from the conduit to the cannula, and wherein the first member and the second member are configured to be removably coupled to one another in each of the plurality of positions by positioning the first member relative to the second member such that the first arm and the second arm are on opposing sides of at least a portion of the hub and sliding the first member in a first direction transverse to a longitudinal axis of the cannula to engage the first arm and the second arm with the hub to prevent relative movement of the first member and the second member in at least one direction, and wherein the first member and the second member are configured to be uncoupled from one another in each of the plurality of positions by sliding the first member in a second direction transverse to the longitudinal axis of the cannula, the first direction and the second direction being opposing directions, to disengage the first arm and the second arm from the hub.