Method and apparatus for holding oral airway devices

{
  "publication_number": "US9707364B2",
  "country": "US",
  "kind": "B2",
  "title": "Method and apparatus for holding oral airway devices",
  "abstract": "A device for securing an oral airway device in place with a patient's oral cavity. The device comprises a V-clamp which is slid along its upper edge in the direction of the oral airway device. After making contact with the oral airway device with the V-clamp, the user may choose to manipulate a screw disposed on the device and bring its corresponding distal end into physical contact with the opposing surface or side of the oral airway device, thereby creating a compressive force on the oral airway device. Alternatively, the device may comprise a V-clamp on a first portion which is disposed on a sliding track. The first portion may be manipulated with the addition of a screw in order to create a compressive force on the oral airway device. Alternatively, the device may comprise two rotating portions coupled together via a pivot point.",
  "claims": [
    "1. A device for securing an oral airway device in the oral cavity of a patient comprising: a first portion of a mouthpiece having a generally C-shaped body and a threaded bore defined therethrough and an open space defined in the first portion of the mouthpiece to accommodate the oral airway device in the open space, the threaded bore communicating with the open space; an adjustable screw threaded into the threaded bore and extending into the open space defined in the first portion of the mouthpiece; and a second portion of the mouthpiece including an adjustable clamp opposable the screw, the adjustable clamp slidingly coupled to the C-shaped body and disposed in the open space, and wherein a V-shaped flange is defined in the adjustable clamp.",
    "2. The device of claim 1 where the second portion of the mouthpiece includes a releasable ratchet pawl and where the first portion of the mouthpiece includes a ratchet track having a plurality of ratchet teeth configured to engage the ratchet pawl to limit motion of the second portion of the mouthpiece to one permitted direction relative to the first portion of the mouthpiece, the one permitted relative motion allowing the first and second portions of the mouthpiece to be moved only toward each other to bring the V shaped flange toward the screw extending into the open space, release of the ratchet pawl allowing motion of the second portion of the mouthpiece relative to the first portion of the mouthpiece in an opposite direction to the one permitted direction portion.",
    "3. The device of claim 2 where the first portion of the mouthpiece further comprises a plurality of track apertures, each of which are configured to accommodate a distal end of the ratchet track therethrough.",
    "4. The device of claim 1 where the C-shaped body has an edge with ratchet teeth defined thereon and where the adjustable clamp comprises a releasable ratchet pawl and where the sliding clamp is coupled to the edge of the C shaped body so that the releasable ratchet pawl engages the ratchet teeth defined on the edge as the adjustable clamp traverses the edge.",
    "5. The device of claim 4 where a distal portion of the ratchet pawl and the ratchet teeth are configured to prevent any unpermitted movement of the adjustable clamp when the distal portion of the ratchet pawl and ratchet teeth are in a nested position.",
    "6. The device of claim 1 where the device further comprises: a first eyelet and a second eyelet disposed on respective first and second portions of the mouthpiece configured to accommodate a strap used to fix the first and second portions of the mouthpiece over the mouth of the patient; and a bite block disposed on a rear surface of the adjustable clamp.",
    "7. A method for securing an oral airway device in a mouth of a patient comprising: inserting the oral airway device into the mouth of the patient; placing a device comprising a mouthpiece over the mouth of the patient, the oral airway device being disposed within an open space defined in the mouthpiece; sliding a clamp coupled to the mouthpiece across the open space, a V-shaped flange defined in the clamp; making contact between a first surface of the oral airway device and the V-shaped flange; and adjusting a screw disposed in the mouthpiece until contact is made with a second surface of the oral airway device and a compressive force is applied between a distal end of the screw and the clamp.",
    "8. The method of claim 7 where sliding a clamp further comprises: ratcheting a distal portion of a releasable ratchet pawl included in the clamp over a plurality of ratchet teeth defined along an edge of the open space; and preventing any movement of the clamp along the edge of the open space after contact has been made with the oral airway device.",
    "9. The method of claim 7 where sliding a clamp further comprises: moving a ratchet pawl included in the clamp over a plurality of ratchet teeth disposed along a ratchet track coupled to the mouthpiece; inserting a distal end of the ratchet track into one of a plurality of track apertures defined in the clamp; and preventing any movement of the clamp along the ratchet track after surface contact has been made with the oral airway device.",
    "10. The method of claim 7 further comprising: adjusting the fit of the mouthpiece over the mouth of the patient by tightening an adjustable strap coupled to either one of two ends of the mouthpiece; inserting a bite block disposed on an opposing surface of the clamp into the oral cavity of the patient; and releasing the oral airway device from the mouthpiece by breaking surface contact between the distal end of the screw and the second surface of the oral airway device and between the V-shaped flange of the clamp and the first surface of the oral airway device."
  ],
  "description_excerpt": "Field of the Technology\n\nThe disclosure relates to the field of medical and paramedic support devices, and more particularly, to adjustable holders for accommodating various endotracheal airway devices.\n\nDescription of the Prior Art\n\nEndotracheal tubes or other oral airway devices have long been used to clear the airway of a patient and provide them with a means of breathing when they are unconscious due to having gone under general anesthesia, having been involved in an accident, or for any number of other medical related reasons. Typically, oral airway devices are comprised of plastic and come in a variety shapes and sizes that are tailored to fit specific needs or tasks. An endotracheal tube is a catheter which is inserted through the nose or mouth of the patient and then down into the trachea. The tube provides a semi-rigid structure which holds open the patient's airway while they are unconscious, permitting them to breathe. Other oral airway devices include mask ventilators and supraglottic airway devices which also provide the patient sufficient means for breathing in an emergency medical situation.\n\nRegardless of which oral airway device is used however, in order to function correctly the oral airway device must be inserted or placed correctly if the patient is to have any chance of success. Any patent airway which is created, either by the oral airway device itself or by a secondary device which is held in place by the oral airway device, may be robust enough to maintain an open airway, yet supple enough that it will not damage or cause injury to the patient who is receiving the oral airway device.",
  "cpc": [
    "A61M 16/0497"
  ],
  "ipc": [
    "A61M 16/04"
  ],
  "assignees": [
    "Laerdal Medical AS"
  ],
  "inventors": [
    "Steve Islava"
  ],
  "filing_date": "2014-08-07",
  "publication_date": "2017-07-18",
  "grant_date": "2017-07-18",
  "priority_date": "2014-08-07",
  "application_number": "US-201414453690-A",
  "family_id": "54808875",
  "cited_by_count": 9,
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}