Improved Airway Limiting Device

Abstract

An airway device (10, 110, 210, 310, 410, 510) for human or animal use, the device having an airway tube (12, 112, 212, 312, 412, 512) having a first end (14, 114, 214, 314, 414, 514) with (16, 116, 216, 316, 416, 516) at the second end with a laryngeal cuff around the first end (18, 118, 218, 318, 418, 518 ), the laryngeal cuff comprises a dorsal portion (20, 120, 220, 320, 420, 520), an anterior portion (22, 122, 222, 322, 422, 522), and a tip portion (32, 132 , 232, 332, 432, 532), the front portion of the laryngeal cuff is formed to anatomically match the shape of the laryngeal entrance of the human or animal patient, which can seal the patient's laryngeal entrance, where the tip portion Contains an annular sealing projection (90, 190, 290, 390, 490, 590). This annular sealing projection is suitable for wedging into the upper esophagus of the patient or sick animal and for improving the sealing effect of the tip of the laryngeal cuff in the upper esophagus of the patient or sick animal. The annular sealing protrusion is preferably made of soft polymer or other plastic materials, with a Shore hardness of 40A to 000A. This annular sealing bulge provides a better seal for the very variable anatomy of the upper esophageal region.

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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