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US 8,555,887 B2Granted
Tracheal tube with dividing membrane
AssigneeCovidien LP
InventorDaniel Lisogurski
Life of this patent
Estimating the term…
Abstract
Various embodiments of a tracheal tube having a flexible membrane disposed therein for separation of a ventilation lumen of the tracheal tube into multiple channels are provided. The flexible membrane is configured to divide a main ventilation lumen of the tracheal tube into an inspiration channel and an expiration channel. In some embodiments, a volume of the inspiration channel is substantially equal to a volume of the expiration channel.
Claims17
A tracheal tube, comprising:
- a tubular body having an open distal end and a ventilation lumen for ventilating a patient;
- and
- a flexible membrane disposed within the ventilation lumen of the tubular body and configured to move or flex to define an inspiration channel and an expiration channel during a breathing cycle of the patient, wherein the flexible membrane is a variable tensioned membrane comprising a first portion with a first tension level and a second portion with a second tension level, wherein the first tension level is substantially different from the second tension level.
A tracheal tube, comprising:
- a tubular body having an open distal end and a main lumen for ventilating a patient;
- and
- a membrane disposed within the main lumen of the tubular body and configured to alternate between a first position and a second position to define an inspiration channel and an expiration channel during a breathing cycle of the patient, wherein the membrane is a variable tensioned membrane comprising a first portion with a first tension level and a second portion with a second tension level, wherein the first tension level is substantially different from the second tension level.
A tracheal tube, comprising:
- a tubular body having an open distal end and a ventilation lumen for ventilating a patient;
- a cuff disposed around the tubular body above the open distal end and configured to be inflated to seal the cuff against a wall of a trachea of a patient;
- and
- a membrane disposed within the ventilation lumen of the tubular body and configured to flex to define an inspiration channel and an expiration channel during a breathing cycle of the patient, wherein the width of the membrane gradually increases along the length of the membrane.
1 more element
Dependencies are inferred from the claim text.