# US 5,699,787 A · Mouthpiece for endotracheal tube > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,699,787 A - Document ID: US5699787A - Status: Granted - Kind: A - Application number: 08/665,507 - Filed: 1996-06-20 - Granted: 1997-12-23 - Earliest claimed: 1996-06-20 - Inventors: Clarence Thompson - Web page: https://patentgrep.com/patent/US5699787A ## CPC - A61M 16/04: Tracheal tubes (catheters in general A61M25/00) - A61M 16/0484: {at the distal end} - A61M 16/0486: {Multi-lumen tracheal tubes} - A61M 16/0493: {with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block} - A61M 2016/0413: {with detectors of CO2 in exhaled gases} - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract An endotracheal system is disclosed which contains a contoured mouthpiece capable of fitting between a patient's teeth. The endotracheal system also provides a medication injection line capable of delivering precise doses of medication directly to the patients lungs. The medication may also be delivered in spray form when necessary. The endotracheal system includes a number of arresting elements, attached to the mouthpiece, which are capable of restricting the motion of the endotracheal tube. The endotracheal system may be secured to the patient by means of a flexible cord such as umbilical tape. ## Claims ### Claim 1 A mouthpiece for an endotracheal tube comprising: a bite block of unitary construction having a proximal surface, a distal surface, and a central aperture of a predetermined diameter for receiving an endotracheal tube therethrough; at least two arresting elements, each of said arresting elements including: a base portion positionable in a parallel manner along the proximal surface of said bite block; and an upstanding leg integrally attached at one end to said base portion; means for pivotally coupling each of said arresting elements to said bite block; frictional engagement means associated with each of said arresting elements for restricting movement of the endotracheal tube; and means for detachably engaging each of said arresting elements to said bite block. ### Claim 2 (depends on 1) A mouthpiece for an endotracheal tube as recited in claim 1 wherein said means for pivotally coupling each of said arresting elements to said bite block comprises a band of flexible material attached at one end to the outermost point on the proximal surface of said bite block and attached at the opposite end to said base portion at a location proximally adjacent its first end. ### Claim 3 (depends on 1) A mouthpiece for an endotracheal tube as recited in claim 1 wherein said means for pivotally coupling comprises a hinge. ### Claim 4 (depends on 1) A mouthpiece for an endotracheal tube as recited in claim 1 wherein each of said arresting elements further includes a shoulder extending from the free end of said upstanding leg. ### Claim 5 (depends on 1) A mouthpiece for an endotracheal tube as recited in claim 1 wherein said means for detachably engaging each of said arresting elements comprises: a fitted extension originating from said base portion and extending outward and perpendicularly to said base portion; and a mating recess defined in the proximal surface of said bite block for securely receiving said fitted extension. ### Claim 6 (depends on 1) A mouthpiece for an endotracheal tube as recited in claim 1 wherein said frictional engagement means comprises a resilient friction pad attached to the upstanding leg of each of said arresting elements and positioned so as to facilitate being pressed snugly against the endotracheal inserted through said mouthpiece. ### Claim 7 (depends on 6) A mouthpiece for an endotracheal tube as recited in claim 6 wherein each of said friction pads is composed of rubber. ### Claim 8 A mouthpiece for an endotracheal tube comprising:. a bite block of unitary construct:ion having a proximal surface, a distal surface, and a central aperture of a predetermined diameter for receiving an endotracheal tube therethrough; a tubular extension originating from said proximal surface and extending perpendicularly therefrom, said tubular extension having an inner diameter identical to the diameter of the central aperture contained in said bite block and an outer diameter substantially less than the distance from the outermost point on the proximal surface of said bite block to said central aperture; at least two arresting elements; means for pivotally coupling each of said arresting elements to said bite block; and frictional engagement means associated with each of said arresting elements for restricting movement of the endotracheal tube. ### Claim 9 (depends on 8) A mouthpiece for an endotracheal tube as recited in claim 8 wherein each of said arresting elements further comprises an arm and a shoulder extending from said arm, and wherein said means for pivotally coupling comprises a hinge disposed at a point where said tubular extension originates. ### Claim 10 (depends on 8) A mouthpiece for an endotracheal tube as recited in claim 8 wherein said frictional engagement means comprises a fitted friction pad originating from each of said arresting elements, and wherein said tubular extension further contains a plurality of mating recesses extending from said inner diameter to said outer diameter for receiving each of said fitted friction pads. ### Claim 11 An endotracheal system comprising: a. an endotracheal tube comprising: a proximal end, a distal end, an exit port integrally attached to said distal end, an inner diameter, an outer diameter, a wall defined by the area formed between said inner and outer diameters, an inflatable balloon surrounding said wall at the distal end of said endotracheal tube, means for inflating said balloon, a first lumen originating external of said endotracheal tube and entering said wall through a first entry point proximate said proximal end of said endotracheal tube, said first lumen extending through said endotracheal tube and terminating at said exit port for delivering medication out of said endotracheal tube, a second lumen originating external of said endotracheal tube and entering said wall through a second entry point proximate said proximal end of said endotracheal tube, said second lumen extending through said endotracheal tube and existing in said balloon, and a membrane integrally connected to the exit port of said first lumen, said membrane containing a plurality of micro pores dimensioned for atomizing the medication; b. a mouthpiece comprising: a bite block of unitary construction having a proximal surface, a distal surface, and a central aperture of a predetermined diameter for receiving an endotracheal tube therethrough, at least two arresting elements, each of said arresting elements including a base portion positionable in a parallel manner along the proximal surface of said bite block and an upstanding leg integrally attached at one end to said base portion, means for pivotally coupling each of said arresting elements to said bite block, frictional engagement means associated with each of said arresting elements for restricting movement of said endotracheal tube, and means for detachably engaging said arresting elements to said bite block; and c. means for securing said endotracheal system to a patient. ### Claim 12 (depends on 11) An endotracheal system as recited in claim 11 wherein each of said arresting elements further comprises a shoulder extending from the free end of said upstanding leg, said shoulder containing a vertical groove. ### Claim 13 (depends on 12) An endotracheal system as recited in claim 12 wherein said means for securing said endotracheal system to a patient comprises umbilical tape wrapped around the vertical groove of the shoulder of a first arresting element, extending behind the neck of a patient, wrapped around the vertical groove of the shoulder of a second arresting element, and said umbilical tape having both of its ends tied together. ### Claim 14 (depends on 12) An endotracheal system as recited in claim 12 further comprising a connector for attaching said endotracheal tube to a gas supply, said connector having a passageway for said gas supply and at least one auxiliary passageway extending into said first passageway. ### Claim 15 (depends on 14) An endotracheal system as recited in claim 14 wherein said means for securing said endotracheal system to a patient comprises umbilical tape wrapped around the vertical groove of the shoulder of a first arresting element, extending behind the neck of a patient, wrapped around the vertical groove of the shoulder of a second arresting element, and wrapped around said connector.