Infusion set for a fluid pump

Abstract

A medical device for delivery of a fluid to a patient from a line terminating in a tubing needle. The medical device includes a cannula assembly for coupling the fluid into a cannula that is inserted into the patient. The cannula assembly has a first locking element disposed in a fixed position with respect to the cannula. Coupling the line to the cannula assembly is an infusion flap. The infusion flap includes a second locking element for engaging the first locking element of the cannula assembly and a lift tab for disconnecting the infusion flap from the cannula assembly. Coupling of the first and second locking elements requires initial mating of the infusion flap and cannula assembly followed by locking through rotation of the infusion flap with respect to the cannula assembly.

Description

[0001] This application claims priority from U.S. provisional patent application serial No. 60 / 291,881, filed May 18, 2001, entitled "Cannula Designs for Insulin Pump Systems." This application is a continuation-in-part of U.S. patent application Ser. No. 10 / 037,614, filed Jan. 4, 2002, entitled "Loading Mechanism for Infusion Pump." Each of these patent applications described in this paragraph is hereby incorporated by reference, in its entirety.TECHNICAL FIELD AND BACKGROUND ART[0002] The present invention relates to a system and method for delivery of a fluid to a patient, and more particularly, to an infusion set for a fluid pump that may be used, for example, to deliver insulin to a patient.[0003] Currently, there are two primary methods of treating diabetes. One method involves taking multiple injections of long acting insulin on a daily basis. The second method is by continuous delivery of short acting insulin to more closely emulate the human pancreas. This may be accomplish...

AI Technical Summary

Benefits of technology

[0100] Having described various illustrative embodiments of the present invention, some of its advantages and optional features, it will be apparent that such embodiments are presented by way of example only and not by way of limitation. Those skilled in the art could readily devise alterations and improvements on these embodiments, as well as additional embodiments, without departing from the spirit and scope of the invention. All such modifications are within the scope of the invention as claimed.

Problems solved by technology

Disconnecting and reconnecting the tubing set is sometimes difficult.

Steel needles, however, can cause irritation and discomfort.

After removing the insertion needle, the first septum may be susceptible to leakage.

This leakage may become more prevalent under pressure, such as when the cannula has an occlusion.

However, if the first septum leaks, the pressure may never reach the threshold, and the pump may continue to deliver insulin.

Images