Patent · US Active

Tracheostomy tube assemblies and inner cannulae

US10799659B2 · kind B2 · utility

0Cited by

3References

3Claims

0Family size

Assignee

Smiths Medical International Limited · GB

Inventors

Timothy Bateman · Leawood, US
Andrew Thomas Jeffrey · Lörrach, DE
Christopher John Woosnman · Ellesmere Port, GB

Key dates

Filing date	May 27, 2016
Grant date	Oct 13, 2020
Priority date	—
Expiry date	May 20, 2037

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M16/0816
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A tracheostomy tube assembly includes an outer tube (1) and an inner cannula (2) inserted in the outer tube. Two lugs (36) and (37) project outwardly from the inner cannula. The outer tube has a connector (15) that is rotatable and has catch members (28) and (29) that can be rotated into alignment with the lugs (36) and (37) on the inner cannula so as to retain the inner cannula in the outer tube. The inner cannula is removed by twisting the connector (15) through 90° so that the catch members (28) (and 29) move out of alignment with the lugs (36) and (37) to enable the inner cannula to be pulled rearwardly out of the outer tube.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.