Minimed, Inc.

Minimed Technologies, Ltd.

Minimed, Inc., a Delaware Corporation

Deborah C McIntyre

Jeffery Van Funderburk

William P Van Antwerp

Matthew Jordan

Todd Kinsfather

Quick disconnect coupling

A quick-connect coupling is provided for use in a medication infusion system, to permit temporary disconnection and subsequent re-connection of a medication infusion pump relative to a patient without requiring removal of a transcutaneous infusion cannula. The coupling is mounted in-line with a length of infusion tubing and includes a female component with a needle recessed therein and adapted for slide-fit connection with a male component having a self-sealing septum. Radial tabs on the male component slide freely into longitudinally open slots formed in the female component, whereupon the male component is rotatable to displace the tabs with interference fit past undercut cam surfaces into alignment with radially open ports formed in the female component. When connected, the male and female components are effectively locked against longitudinal separation. However, the male and female components can be separated safely and easily, and without applying substantial longitudinal forces, by rotating the male component to displace the tabs back to alignment with the longitudinally open slots in the female component.

Quick-connect coupling for a medication infusion system

An improved medication infusion pump is provided of the type for receiving and supporting a medication-containing syringe, wherein the pump and syringe include matingly interfitted components to ensure use of the pump with a compatible and correctly installed syringe. The infusion pump comprises a pump housing defining a syringe compartment for receiving and supporting the syringe, in combination with a drive member for engaging and programmably displacing a syringe plunger to administer medication to a patient. In one preferred form, the drive member and plunger include a matingly interfitting tab and notch which are engaged when the syringe is fully and properly positioned within the syringe compartment. In another form, the tab and notch are formed on the syringe plunger and a portion of the pump housing.

Mated infusion pump and syringe

Needle guard for infusion needle

A device for use as a subcutaneous injection set is disclosed which has a soft cannula through which a selected medication can be administered to a patient, wherein the soft cannula is adapted for transcutaneous placement by an insertion needle substantially without crimping or kinking. The cannula is supported by and protrudes outwardly from a housing adapted to receive the selected medication. The insertion needle is initially inserted through a septum on the housing and further through the cannula to provide a rigid structure to insert the soft cannula through the patient's skin. The insertion needle and cannula are constructed to prevent longitudinal slippage of the cannula on the needle during the insertion process, thereby preventing undesired crimping or kinking of the soft cannula. After insertion, the needle is withdrawn from the cannula and housing to permit medication delivery to the patient.

Subcutaneous injection set with crimp-free soft cannula

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Agoura, CA, United States of America

Deborah C McIntyre