More than 3.5 million people in the UK snore and even more are affected by a partner or neighbour who snores. 20. A nasal dilator as defined in claim 5; and a non-adhesive segment comprising a single thin semi-rigid but flexible non-adhesive piece attached along its entire length to said flexible nasal strip between said two end adhesive segments and extending equal distances from said connection of said nasal strip with said UV-spring at the central portion otolaryngologists thereof; and connecting means operatively associated with said non-adhesive piece to secure said non-adhesive piece to said central portion of said UV-spring, for enabling the wearer to install said contact leg-portions of said UV-spring in said nasal opening without the wearer's fingers contacting said end-adhesive segments and to maintain alignment of said strip with said spring as a result of the transverse rigidity of said semi-rigid piece.
Two randomised, placebo-controlled studies of the use of intranasal steroids in OSAS patients have demonstrated a significant fall in AHI with active therapy (table 1 ⇓ ) 39 , 40 ; the report by Kiely et al. 39 indicated a good relationship between nasal airflow resistance measured using posterior rhinomanometry and AHI (fig.
9. A nasal dilator a defined in claim 6; and said flexible strip also including at least one thin semi-rigid but flexible non-adhesive piece attached to said nasal strip between said two end-adhesive segments for enabling the wearer to install said UV-spring in said nasal opening without the wearer's fingers contacting said adhesive segments, and to determine the portions of the outer nostril walls subjected to said end-adhesive segments.
In fact, any internal nasal dilator without a positive retaining means, as disclosed herein, will fall out of the nose in practical use, according to extensive evaluation of the dilator of the present invention; in this event, the dilator would be inoperative, or at least not useful for the purpose intended.
The primary determinant of upper airway patency is the balance of forces between the negative pressure within the pharynx during inspiration and the counteracting force of upper airway dilator muscles, principally the genioglossus 13 The upper airway has also been described as behaving like a Starling resistor 14 This model views the upper airway as a hollow tube with a partial obstruction at the inlet, corresponding to the nose, and a collapsible section downstream, corresponding to the oropharynx.
While our study was limited to 2 weeks, a prior randomized, controlled 4-week study of nasal dilator strip use by nonobese patients with mild to moderate sleep-disordered breathing and sleep-maintenance insomnia (N = 91) found that the strip was associated with large improvements in the severity of insomnia and sleep quality, and moderate improvements in sleepiness and quality of life scores on patient-reported outcome scales (Insomnia Severity Index, PSQI, FOSQ, and Quality of Life Enjoyment and Satisfaction Questionnaire) 15 While longer-term follow-up is lacking, the results of the current trial and the 4-week study show no indication that the potential benefits of nasal dilator strips wane over time with nightly use.
This exploratory study characterized the performance of a nasal dilator strip with improved spring forces in lowering nasal resistance during sleep and reducing sleep-disordered breathing in subjects with difficulty sleeping due to chronic nocturnal nasal congestion.
Method: We carried out a multicentric prospective study of 15 patients, from November 2003 through June 2006, with patients using CPAP, divided into two groups: 10 with adhesion problems and five without adhesion problems, all examined for inclusion.
23. A nasal dilator as defined in claim 6: and said UV-spring comprising substantially flat spring material, and said UV-spring and said flexible nasal strip including centering means for enabling the wearer to readily align the center of said nasal strip with the center of said UV-spring when installing each new nasal strip.