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An apparatus for selectively positioning intraoral anatomic features of a human patient to enhance upper airway stability for use alone or in combination with positive airway pressure as therapeutic treatment for obstructive sleep apnea and other conditions, such as snoring, which are symptomatic of

An apparatus for selectively positioning intraoral anatomic features of a human patient to enhance upper airway stability for use alone or in combination with positive airway pressure as therapeutic treatment for obstructive sleep apnea and other conditions, such as snoring, which are symptomatic of upper airway instability.

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1. An apparatus for enhancing patency of a user's airway comprising:a first member adapted to contact a portion of a user; a flexible sleeve adapted to be received at least partially within such a user's oral cavity and adapted to receive a portion of such a user's tongue therein, wherein the flexib

1. An apparatus for enhancing patency of a user's airway comprising:a first member adapted to contact a portion of a user; a flexible sleeve adapted to be received at least partially within such a user's oral cavity and adapted to receive a portion of such a user's tongue therein, wherein the flexible sleeve is of sufficient flexibility that, during use, the flexible sleeve readily collapse about the portion of such a user's tongue upon application of a vacuum within the flexible sleeve, and wherein application of such a vacuum within the flexible sleeve fixes the flexible sleeve to the portion of such a user's tongue in the without distending such portion of a user's tongue so that a position of such a user's tongue is controllable by controlling a position of the flexible sleeve; and a first connecting assembly cooperable with the first member and the flexible sleeve to maintain a fixed position between the first member and the flexible sleeve during use of the apparatus. 2. The apparatus as set forth in claim 1, wherein the first member engages at least one of a user's upper dentition, lower dentition, and a facial region proximate to such a user's mouth.3. The apparatus as set forth in claim 1, wherein the first member, the flexible sleeve, and the first connecting assembly are configured and arranged such that the fixed position is a position advanced forwardly from a normal position of a user's tongue relative to such a user's upper dentition.4. The apparatus as set forth in claim 1, wherein the first connecting assembly is configured and arranged to provide selective adjustment of a relative positional relationship between the first member and the flexible sleeve with respect to each other to control a position of a user's tongue relative to an upper dentition.5. The apparatus as set forth in claim 4, wherein the first connecting assembly includes a rotary screw actuated by rotation thereof for adjustment of the relative positional relationship between the first member and the flexible sleeve with respect to each other.6. The apparatus as set forth in claim 4, wherein the first connecting assembly includes a protruding element operatively coupled to the first member and the flexible sleeve such that the flexible sleeve is selectively adjustable over a plurality of discrete positions relative to the first member by adjusting a position of the protruding element relative to the first member.7. The apparatus as set forth in claim 6, wherein:(a) the protruding element is a flexible conduit used to communicate a vacuum with an interior of the sleeve and includes a plurality of spaced apart locking elements disposed thereon; (b) the first member includes a locking aperture; and (c) each locking element is independently cooperable with the locking aperture for locking the protruding element in one of the plurality of discrete relative positions. 8. The apparatus as set forth in claim 4, further comprising:a motor connected to the first connecting assembly for moving the flexible sleeve relative to the first member responsive to actuation of the motor; and a controller coupled to the motor, wherein the controller controls the actuation of the motor. 9. The apparatus as set forth in claim 8, further comprising a sensor for monitoring a parameter associated with such a user, and wherein the controller controls the actuation of the motor based on the monitored parameter.10. The apparatus as set forth in claim 1, wherein the first member is adapted to engage a user's upper dentition, the apparatus further comprising:a second member adapted to engage a user's lower dentition; and a second connecting assembly cooperable with the second member and at least one of the first member and the flexible sleeve to maintain a predetermined relative positional relationship therebetween. 11. The apparatus as set forth in claim 10, wherein the second connecting assembly and second member are configured and arranged such that, in use, the second member retains a user's lower dentition in a position advanced forwardly from a normal position thereof with respect to such a user's upper dentition.12. The apparatus as set forth in claim 10, wherein the second connecting assembly is configured and arranged to provide selective adjustment of a position of a user's lower dentition relative to such a user's upper dentition.13. The apparatus as set forth in claim 12, further comprising:a motor connected to the second connecting assembly for moving the second member relative to the first member responsive to actuation of the motor; and a controller coupled to the motor, wherein the controller controls the actuation of the motor. 14. The apparatus as set forth in claim 13, further comprising a sensor for monitoring a parameter associated with such a user, and wherein the controller controls the actuation of the motor based on the monitored parameter.15. The apparatus as set forth in claim 1, further comprising:a vacuum source; and a delivery system that communicates the vacuum source with an interior of the flexible sleeve. 16. The apparatus as set forth in claim 1, further comprisinga passage defined through at least one of the first member and the connecting assembly, and a positive airway pressure source for providing positive pressure breathing gas in an upper airway of a user via the passage. 17. The apparatus as set forth in claim 1, wherein the first member includes a tongue receiving cavity adapted to receive at least a portion of the flexible sleeve, wherein a first opening is provided in the first member for communicating a vacuum source with the tongue receiving cavity, wherein a second opening is provided in the first member for disposing the flexible sleeve in the tongue receiving cavity, wherein the second opening is sealed responsive to the flexible sleeve being positioned in the tongue receiving cavity so that the vacuum can be maintained in the tongue receiving cavity, and wherein the flexible sleeve includes an opening defined therein for communicating an interior of the flexible sleeve with the tongue receiving cavity.18. The apparatus as set forth in claim 17, wherein an end portion of the flexible sleeve engages a portion of the first member proximate to the second opening to form the seal.