Patent · US Active

Tracheostomy tube assemblies and inner cannulae

US10894138B2 · kind B2 · utility

0Cited by

5References

10Claims

0Family size

Assignee

Smiths Medical International Limited · GB

Inventors

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

Key dates

Filing date	May 27, 2016
Grant date	Jan 19, 2021
Priority date	—
Expiry date	May 18, 2037

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M16/0434
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A tracheostomy tube assembly includes an outer tube (1) and an inner cannula (2) removably inserted in the outer tube. The connector (15) on the machine end of the outer tube is rotatable through about a quarter turn and has a screw thread (30) on its inner surface. The hub (33) on the machine end of the inner cannula (2) is also formed with a screw thread (35) arranged to engage with the screw thread (30) in the connector. The inner cannula (2) is pulled into the outer tube (1), or is pushed outwardly of the tube, by rotating the connector.

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