Patent ID: 9522225
Filing Date: 2016-12-20
CPC Classification: A61M

Claim Text:
1. A medical device comprising: a medical monitoring device comprising a sensor configured to detect a biological parameter on a patient or a treatment device comprising an electronic infusion pump configured to deliver an infusion medium to a patient, the medical monitoring or treatment device including and operable with an insertion needle positioned to be inserted into the patient to insert a cannula into the patient, the insertion needle configured to extend through the cannula when the insertion needle is inserted into a patient to insert the cannula into the patient, the insertion needle configured to be withdrawn from the cannula to leave the cannula at least partially in the patient after the cannula is inserted into the patient, the cannula having an interior channel for conveying fluid to or from the medical monitoring or treatment device after the insertion needle is withdrawn from the cannula and during operation of the medical monitoring or treatment device; a pierceable membrane defining an interior volume containing an agent, the pierceable membrane positioned to be pierced by the insertion needle to allow the insertion needle to cause at least some of the agent contained in the interior volume of the pierceable membrane to be communicated from the interior volume of the pierceable membrane, outside the cannula, to the patient as the insertion needle is moved to an insertion position to be inserted into the patient with the cannula; and a base adapted to be secured to the patient during operation of the medical monitoring or treatment device, the base having a bottom surface that is arranged to contact a portion of the skin of the patient when the base is secured to the patient; wherein the pierceable membrane is arranged on and attached to the bottom surface of the base such that the insertion needle is external to the internal volume of the pierceable membrane when the needle begins to move toward the insertion position, and such that the insertion needle passes through the pierceable membrane on the bottom surface of the base as the insertion needle continues to move to the insertion position; and wherein the pierceable membrane is positioned between a portion of the bottom surface of the base and the skin of the patient in a case where the base is secured to the patient during operation of the medical monitoring or treatment device.