Methods and devices for rhinoplasty and treating internal valve stenosis
Methods and devices for rhinoplasty and treating nasal valve stenosis are disclosed herein. The nasal valve acts as a flow-limiter and can contribute to airway obstruction if resistance within the nasal valve is excessive. In one embodiment, a system for treating nasal valve stenosis includes a first elongate implant and a second elongate implant configured to support the nasal valves when implanted. The implants can be coupled together by connecting elements, such as eyelets, tethers, complementary socket joints, and button-rivet supports.
1. A method of suspending a nasal valve, comprising the steps of:
providing a delivery cannula, the cannula comprising a proximal end, a distal end and a working lumen extending from the proximal end to the distal end, wherein a nasal suspension assembly is housed within the working lumen of the cannula, the nasal suspension assembly comprising a tether, a first expandable tissue anchor attached to a proximal end of the tether, and a second expandable tissue anchor attached to a distal end of the tether, wherein the first expandable tissue anchor, the second expandable tissue anchor and the tether are simultaneously positioned entirely within the working lumen;
passing the delivery cannula distal end first from a nostril of the patient under a surface of the patient's skin toward an eye of the patient until the distal end of the delivery cannula is lateral or adjacent the eye;
retracting the delivery cannula proximally from the nostril in a manner wherein the distal end of the cannula moves in a direction away from the distal end of the tether and toward the first expandable tissue anchor such that the distal end of the tether emerges from the distal end of the cannula and such that the first expandable tissue anchor exits the distal end of the cannula to expose the first expandable tissue anchor and the tether;
deploying the first expandable tissue anchor within a first tissue layer within a lateral wall of a nasal passage;
securing the tether within a second tissue layer near an orbital rim of the patient with the second expandable tissue anchor to support the nasal valve; and
tensioning the tether to suspend the nasal valve.
2. The method of claim 1 , wherein the second tissue layer is in the vicinity of an infraorbital rim of the patient.
3. The method of claim 1 , wherein the second tissue layer is selected from the group consisting of mucosa, cartilage, dermis, or subcutaneous fascia.
4. The method of claim 1 , further comprising the step of adjusting the tension of the tether after deployment of the first and second tissue anchors.
5. The method of claim 4 , wherein adjusting the tension of the tether after deployment of the first and second tissue anchors is accomplished by an adjustment element disposed along a portion of the nasal suspension assembly.