Medical apparatus with hypopharyngeal suctioning capability
A laryngeal mask apparatus to ventilate a patient and also suck in fluids and secretions in the patient's hypopharyngeal region. The laryngeal mask apparatus has a mask, a flexible breathing tube in communication with the mask and a suction tube which has a plurality of suctioning ports that face the back of the patient's throat when the mask is inserted into the patient's throat. When suction is created within the suction tube, fluids and secretions in the patient's hypopharyngeal region are sucked into the plurality of suction ports. The laryngeal mask apparatus also has a flexible air capillary tube positioned within the interior of the suction tube to provide an air flow that decreases the direct suction forces on the mucosa of the patient's throat that are caused by the suction of the plurality of suction ports.
1. A laryngeal mask apparatus ( 1000 ) for facilitating ventilation of a patient comprising:
a mask ( 1001 ) comprising a front side ( 1002 ) and a rear side ( 1004 ) that faces a back of a patient's throat when the mask ( 1001 ) is positioned within the patient's throat, an inflatable tubular ring ( 1005 ), an air tube ( 1012 ) that is connected to the inflatable tubular ring ( 1005 ) and adapted to be connected to an air source to enable inflation of the inflatable tubular ring ( 1005 );
a joint section ( 1006 ) attached to the rear side ( 1004 ) of the mask ( 1001 ) and having an exterior surface;
a flexible breathing tube ( 1010 ) connected to the joint section ( 1006 ), the flexible breathing tube ( 1010 ) having an interior ( 1011 ) to receive airflow therethrough, wherein air in the flexible breathing tube ( 1010 ) flows through the flexible breathing tube ( 1010 ) and through the joint section ( 1006 ) and into the mask ( 1001 ), the flexible breathing tube ( 1010 ) having a portion configured for connection to a ventilating system;
an additional flexible tube ( 1018 ) having a length and comprising an interior ( 1019 ), a first portion ( 1018 A) and a second portion ( 1018 B) that is configured to be connected to a suction producing device that produces suction within the interior ( 1019 ) of the additional flexible tube ( 1018 ), wherein a substantial portion of the first portion ( 1018 A) is wrapped about and attached to the exterior surface of the joint section ( 1006 ), wherein the additional flexible tube ( 1018 ) extends to a distal end ( 1018 C) which is part of the first portion ( 1018 A), the first portion ( 1018 A) having a plurality of suction ports ( 1009 ) in communication with the interior ( 1019 ), the plurality of suction ports ( 1009 ) being located in the first portion ( 1018 A) such that the plurality of suction ports ( 1009 ) face the back of the patient's throat when the mask ( 1001 ) is positioned within the patient's throat so that the plurality of suction ports ( 1009 ) suck in fluids and secretions in the patient's hypopharyngeal region when suction is created within the interior ( 1019 ), the additional flexible tube ( 1018 ) further comprising an air entry hole ( 1050 ) in the second portion ( 1018 B) and an air exit hole ( 1060 ) in the first portion ( 1018 A), wherein the distal end ( 1018 C) and the air exit hole ( 1060 ) are spaced apart from the mask ( 1001 ); and
wherein the additional flexible tube ( 1018 ) further comprises a flexible air capillary tube ( 1020 ) that is positioned within the interior ( 1019 ) of the additional flexible tube ( 1018 ) and the flexible air capillary tube ( 1020 ) extends for substantially all of the length of the additional flexible tube ( 1018 ), the flexible air capillary tube ( 1020 ) having a first open end ( 1020 A) in communication with the air entry hole ( 1050 ) and an opposite second open end ( 1020 B) in communication with the air exit hole ( 1060 ), wherein when suction is created within the interior ( 1019 ), air is drawn into the air entry hole ( 1050 ) and enters the first open end ( 1020 A) of the flexible air capillary tube ( 1020 ) wherein the air then flows through the flexible air capillary tube ( 1020 ), exits the second open end ( 1020 B) and then exits the air exit hole ( 1060 ), such that
when the mask ( 1001 ) is positioned within the patient's throat and suction is created within the interior ( 1019 ), the air exiting the air exit hole ( 1060 ) decreases direct suction forces on mucosa of the patient's throat that are caused by the suction of the plurality of suction ports ( 1009 ).
2. The laryngeal mask apparatus ( 1000 ) according to claim 1 , wherein the first portion ( 1018 A) is also attached to the rear side ( 1004 ) of the mask ( 1001 ).
3. The laryngeal mask apparatus ( 1000 ) according to claim 1 , wherein the additional flexible tube ( 1018 ) has a middle portion that is between the first portion ( 1018 A) and the second portion ( 1018 B), the middle portion being joined or attached to the flexible breathing tube ( 1010 ).
4. The laryngeal mask apparatus ( 1000 ) according to claim 1 , further comprising a suction tube connector ( 1024 ) that is connected to the second portion ( 1018 B) of the additional flexible tube ( 1018 ).
5. The laryngeal mask apparatus ( 1000 ) according to claim 4 , wherein the suction tube connector ( 1024 ) is adapted to be connected to the suction producing device.
6. The laryngeal mask apparatus ( 1000 ) according to claim 1 , further comprising a connector ( 1026 ) that has a first portion ( 1028 ) configured for insertion into the flexible breathing tube ( 1010 ) and a second portion ( 1030 ) that is configured for connection to the ventilating system.