Infusion set

Inventors

Brandenburg, Allen E. • Lynch, George R. • Price, Bret W. • Cocke, David C.

Assignees

Vicentra BV

Abstract

The present application relates to an infusion set (80). The infusion set (80) has a base (90) for mounting on a user, and a connector (100) which engages with the base (90) to form a flow path between the connector (100) and a cannula mountable on the base (90). The connector (100) is configured to be selectably mountable to the base (90) in at least two predetermined mounting orientations. The present application also relates to an infusion set base (90), an infusion set connector (100), an infusion set cannula, and a method of assembling an infusion set (80).

Core Innovation

An infusion set includes an infusion set base and an infusion set connector that form a sealed flow path to a cannula. The connector is selectably mountable in at least two predetermined orientations, and the base includes a cannula receiving recess or pocket and a latch receptacle arrangement that cooperates with latch tabs and resilient deflectable release arms to latch upon pivoting.

The base includes a flexible peripheral portion and a rigid central portion for skin conformity and component retention. A one-piece, resiliently deformable sealing cannula includes a hub defining a sealing area and a flow conduit via an arched contour and a circumferential peak, and the arched contour flexes to conform to a sealing surface of the connector and forms a sealed connection, including axial compression during connector rotation.

The document also notes that antimicrobial or bacteria-resistant cannula materials can be used. The infusion set is described as using reduced parts for manufacturing and comfort, and as enabling sealed medication delivery to a subcutaneous fat layer using a connector, tubing, and a cannula.

Claims Coverage

The document provides two independent claims covering a resiliently deformable, integrally formed cannula hub and stem with a sealing contour that flexes to conform to a releasable connector, and an infusion set comprising a base, the same cannula, and a releasably mounted connector so the sealing area flexes to conform against the connector, including selectable connector mounting and axial compression.

Across the independent claims, the central inventive concept is a resiliently deformable, integrally formed cannula hub and stem whose sealing area and contour flex to conform to a releasable connector sealing surface, enabling a sealed connection. The infusion set claim further ties this to an infusion set base and a releasably mounted connector, with refinements for selectable connector mounting orientations, base recess sealing geometry, an undercut in the recess, and axial compression of the hub between the base and the connector.

Stated Advantages

Documented Applications