Medico-surgical tube
US6799574B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2002 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Jul 1, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0656
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A laryngeal mask airway has a main tubular shaft (1) with a channel (2) of part circular section opening along its external surface. A mask portion (5) is attached to the patient end of the shaft, including a mount (50) and a cuff (60) attached to the mount. A channel (55) extends along the mount (50) from the channel (2) in the shaft (1) to the cuff (60). A small-diameter tube (70) opens at one end into the cuff (60) and extends along the channels (55 and 2) in the mount (50) and in the shaft (1). The channel (2) in the shaft (1) mechanically retains the small-diameter tube (70), the tube extending out of the channel through one of several notches (20) spaced along the channel. The tube (70) can be peeled away from the shaft (1) to extend out of one of the other notches (20), so that the shaft can be cut shorter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.