Improved stopper device

Abstract

An airway device (10, 110, 210, 310, 410, 510) for human or animal use, the device includes an airway tube (12, 112, 212, 312, 412, 512) having a first end (14, 114, 214, 314, 414, 514) and a second end (16, 116, 216, 316, 416, 516), the first end of the airway tube is surrounded by a laryngeal cuff (18, 118, 218, 318, 418, 518), the laryngeal cuff includes a back dorsal portion (20, 120, 220, 320, 420, 520), a front face portion (22, 122, 222, 322, 422, 522) and a tip portion (32, 132, 232, 332, 432, 532), the front face portion of the laryngeal cuff is shaped to form an anatomical fit over the laryngeal inlet of a human or animal patient, and to form a seal with the laryngeal inlet of the patient, wherein the tip portion includes an annular sealing bulge (90, 190, 290, 390, 490, 590). The annular sealing bulge is adapted to wedge into upper oesophagus region of the human or animal patient. The annular sealing bulge is provided for improved sealing of the tip of the laryngeal cuff in the upper oesophageal region of the human or animal patient. The annular sealing bulge is preferably formed from a soft polymeric or other plastics material with a Shore hardness of between 40 and 000 on the A scale. The annular sealing bulge allows for better sealing with a more variable range of upper oesophageal anatomical features.

Description

technical field [0001] The present invention relates to medical devices for safe airway devices. It finds application in supraglottic airway devices, including pharyngeal, tracheal and bronchial airway devices, and methods of making the same. The invention is also applicable to other types of devices that may involve the delivery of oxygen and / or anesthetic gases to patients or animals during surgical procedures or resuscitation by spontaneous breathing, assisted ventilation or intermittent positive pressure ventilation (IPPV). Background technique [0002] Various types of airway devices are currently available for spontaneous breathing or IPPV in anesthetized patients, or for resuscitative applications. The development of such devices has focused on ensuring optimal shape and material integration to allow for easy insertion of the devices and to increase the sealing pressure once inside the patient. This applies to both supraglottic airway devices, which require a seal i...

AI Technical Summary

Problems solved by technology

However, these attempts have not fully resolved the problem of rotating

With external fixation, additional fixation of the device is required by the clinician, so this is not always possible

[0006] Also, there is another problem with current supraglottic airway devices, especially in airway type devices, where the epiglottis of the patient or sick animal can fold down inside the device, blocking the airway, which can obstruct patient ventilation

Downfolding of the epiglottis This problem occurs mainly in children and animal patients, who have a wide range of elasticity and size of the epiglottis

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