Secretion clearing ventilation catheter and airway management system
First Claim
1. A ventilation catheter for operably securing to an airway management system that has a new inspiratory fluid path and an expiratory fluid path, said catheter having:
- an open distal end for allowing new inspiratory fluid from the airway management system to flow into a patient and used inspiratory fluid from the patent to flow back to the airway management system;
a double lumen portion defining a first lumen and a second lumen, said double lumen portion sized to be received within a patient'"'"'s mouth and extend down the patient'"'"'s throat;
said first lumen pneumatically connected to the new inspiratory fluid path; and
, said second lumen pneumatically connected to said expiratory fluid path.
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Accused Products
Abstract
A pulmonary secretion clearing ventilation catheter and related airway management system is disclosed. The ventilation catheter has a double lumen portion which each lumen of the double lumen portion operably secured to an airway management system so that inspiratory fluid (air/oxygen mixtures, with or without added water vapor) is delivered to the distal end of the ventilation catheter through one of the two lumens and expired inspiratory fluid, pulmonary secretions, and pulmonary fluids are removed from the patent through the other lumen. The expiratory fluid pathway preferably includes a secretion collection system for removing the pulmonary secretions and the like from the pathway, thereby improving operation and safety of the system. An improved inflatable cuff is also disclosed that permits a slight air leakage in the pneumatic seal between the patient'"'"'s lungs and the environment, thereby facilitating removal of pulmonary secretions from the patient'"'"'s lungs.
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Citations
16 Claims
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1. A ventilation catheter for operably securing to an airway management system that has a new inspiratory fluid path and an expiratory fluid path, said catheter having:
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an open distal end for allowing new inspiratory fluid from the airway management system to flow into a patient and used inspiratory fluid from the patent to flow back to the airway management system;
a double lumen portion defining a first lumen and a second lumen, said double lumen portion sized to be received within a patient'"'"'s mouth and extend down the patient'"'"'s throat;
said first lumen pneumatically connected to the new inspiratory fluid path; and
,said second lumen pneumatically connected to said expiratory fluid path. - View Dependent Claims (2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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4. The ventilation catheter of claim 4, wherein said double lumen portion is formed by securing said second lumen substantially perpendicular to said first lumen, thereby defining a substantially straight path from said first lumen through said single lumen portion.
Specification