Tracheostomy tube combination radial snap and bayonet cannula connector
AssigneeCovidien LP
InventorGeorge Matlock
Life of this patent
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Abstract
A medical device tube having extended retention tabs with notches therein for improved coupling of an inner cannula connector to an outer cannula connector. The medical device tube comprises an outer cannula connector having retention tabs on an outer cannula connector flange attached to the proximal end of an outer cannula. The retention tabs maintain the snap ears of the inner cannula connector when the inner cannula connector is rotated whereby the notches substantially hold the snap ears. The snap ears may further be positioned in notches in the outer cannula flange when the snap ears lock onto the outer cannula connector flange.
Claims20
A tracheostomy tube outer cannula connector, comprising:
- an annular flange comprising a proximal end and a distal end, wherein the distal end is configured to be coupled to an outer cannula;
- a first retention tab and a second retention tab associated with the annular flange and extending outward from the flange in a proximal direction, wherein each of the first and second retention tabs comprise at least one notch, and wherein the first and second retention tabs do not have rotational symmetry along an axis parallel to a radial axis of the tracheostomy tube outer cannula connector, wherein the first and second retention tabs and the first and second notches form a partial annulus comprising a plurality of openings between the first and second retention tabs, and wherein the plurality of openings and the notches are configured to receive a plurality of structures of an inner cannula connector.
A tracheostomy tube, comprising:
- an outer cannula;
- an outer cannula connector coupled to the outer cannula, wherein the outer cannula connector comprises at least two retention tabs coupled to the outer cannula connector and extending from the outer cannula connector and away from the outer cannula, each of the at least two retention tabs having a first notch therein;
- an inner cannula;
- and
- an inner cannula connector coupled to the inner cannula and configured to be inserted into the outer cannula such that the inner cannula and the outer cannula are coaxially aligned, wherein the inner cannula connector comprises a plurality of ears that extend along a plane perpendicular to an axis of the inner cannula and that are configured to be rotated into each respective first notch of the at least two retention tabs.
A tracheostomy air passage system, comprising:
- a tracheostomy tube comprising,
- an outer cannula;
- an outer cannula connector coupled to the outer cannula, wherein the outer cannula connector comprises a plurality of tabs forming a partial annulus coaxial with the outer cannula and wherein the plurality of tabs each have a first notch;
- an inner cannula;
- and
- an inner cannula connector coupled to the inner cannula and configured to be inserted into the outer cannula such that the inner cannula and the outer cannula are coaxially aligned, wherein the inner cannula connector comprises a plurality of ears configured to be rotated into each respective first notch of the at plurality of tabs;
- a ventilator hose coupled to the inner cannula connector;
- and
- a ventilator coupled to the ventilator hose.
Dependencies are inferred from the claim text.