CA1332905C - Method and apparatus for treatment of snoring - Google Patents
Method and apparatus for treatment of snoringInfo
- Publication number
- CA1332905C CA1332905C CA000593417A CA593417A CA1332905C CA 1332905 C CA1332905 C CA 1332905C CA 000593417 A CA000593417 A CA 000593417A CA 593417 A CA593417 A CA 593417A CA 1332905 C CA1332905 C CA 1332905C
- Authority
- CA
- Canada
- Prior art keywords
- subject
- mouth
- air
- body portion
- user
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 206010041235 Snoring Diseases 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title abstract description 8
- 230000007958 sleep Effects 0.000 claims description 10
- 208000008784 apnea Diseases 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 210000003800 pharynx Anatomy 0.000 description 10
- 230000029058 respiratory gaseous exchange Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 210000002396 uvula Anatomy 0.000 description 4
- 206010021079 Hypopnoea Diseases 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 208000007590 Disorders of Excessive Somnolence Diseases 0.000 description 1
- 206010027590 Middle insomnia Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000001847 jaw Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 230000000422 nocturnal effect Effects 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
- 230000000414 obstructive effect Effects 0.000 description 1
- 208000001797 obstructive sleep apnea Diseases 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 230000036385 rapid eye movement (rem) sleep Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000005182 tip of the tongue Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/56—Devices for preventing snoring
- A61F5/566—Intra-oral devices
Abstract
The present invention provides an improved method and apparatus for treatment of snoring and apnea. The method provides the steps of regulating the flow of air through the mouth of the user to an extent comparable to the volume of air which flows through the user's nasal passages. The apparatus provides a device having a body portion sufficiently wide to separate the user's teeth and provided with an air passage comparable in area to the area of the user's nasal passages. In a preferred form of the invention the user is able to seal the air passage with his tongue to completely suppress the flow of air through the mouth and to control the turbulence of the air meeting the nasal inspiration.
Description
-METHOD AND APPARATUS FOR ~A~M~T OF SNORING
BACKGROUND OF THE lNV~N'l'lON
The invention relates to the treatment of snoring in humans and more particularly to a method and apparatus for the treatment of snoring and apnea.
DESCRIPTION OF THE PRIOR ART
Snoring, the generation of noise during sleep due to the vibration of the fleshy portions of the pharynx including the uvula, affects a large portion of the population. In its more serious manifestations, snoring can seriously disrupt the sufferer's sleep and may be related to apnea, the periodic cessation of breathing during sleep.
Despite considerable research devoted to the problem of snoring over many years, no progress has been made to a successful treatment for the problem. Various theories have been espoused resulting in a number of methods and apparatus for the treatment of snoring. For example, West German patent No. 65194, issued November 1, 1892 to Otto Francke in Cottbus discloses a device for insertion into the snorer's mouth which has a rubber tube flattened on one end. The flattened end was to be rested on the tip of the tongue as this would keep the tongue moving and the mouth salivating. Apparently it was thought that by keeping the mouth closed and the throat moist, snoring would be reduced.
Similarly, in United States patent No. 746,869 issued December 15, 1903 to Moulton, a mouthpiece having a one-way valve was provided which prevented the ingress of air through the mouth and regulated the egress of air through the mouth. Again it was thought that the flow of air through the mouth caused the drying of the throat which in turn caused snoring and therefore it was thought desirable to cut off all breathing through the mouth.
More recent theories have postulated that snoring might be treated by opening the air passage at the back of the throat by pulling the tongue forward. For example United States patent No. 4,304,227 issued December 8, 1981 to Samelson and United States patent No. 4,676,240 issued June 30, 1987 to Gardy disclose devices positioned in the mouth for holding the tongue forward during sleep. United States patent No. 3,132,647 issued May 12, 1964 to Corniello discloses a device which achieves this result using a metal pad to depress the rear portion of the tongue.
British patent No. 1,248,474 issued October 6, 1971 discloses a device for preventing snoring which keeps the lips apart and allows a restricted amount of breathing through the mouth. This device however does not separate the wearer's teeth and the size of the air passage is such as to be extremely restrictive of air flow through the mouth.
SUMMARY OF THE lNv~N~l~lON
The present invention provides an improved method and apparatus for treatment of snoring and apnea. The method provides the steps of regulating the flow of air through the mouth of the user to an extent comparable to the volume of air which flows through the user's nasal passages. The apparatus provides a device having a body portion sufficiently wide to separate the user's teeth and provided with an air passage comparable in area to the area of the user's nasal passages. In a preferred form of the invention the user is able to seal the air passage with his tongue to completely suppress the flow of air through the mouth and to control the turbulence of the air meeting the nasal inspiration.
BRIEF DESCRIPTION OF THE DRAWINGS
In drawings which illustrate an embodiment of the invention:
Fig. 1 is a cross-sectional view showing the device of the invention in use in a patient's mouth;
Fig. 2 is a perspective view of the device of the invention;
Fig. 3 is a cross-sectional view taken along lines III-III of Fig. 2;
Fig. 4 is front view of the device shown in Fig. 2; and Fig. 5 is a cross-sectional view taken along lines V-V of Fig. 2.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
Referring to Figure 1, the device of the invention, shown as 1, is located in the mouth of a user 2. The mouth has upper lip 3, lower lip 4, upper jaw 5, lower jaw 6, tongue 7, uvula 8, upper teeth 9 and lower teeth 10. The pharynx is designated 11, the nasal cavity as 12 and nostril 13. During normal breathing air is drawn through nostril 13, passes through nasal passage 12 and past pharynx 11 to proceed to the lungs.
Normally air flows smoothly past the uvula and pharynx which remain relatively firm. However, snoring is caused when air flowing through the mouth creates turbulence and causes the soft flesh of uvula 8 and pharynx 11 to vibrate.
The device of the present invention is shown in more detail in Figures 2 through 5. It consists of a tapered body portion 20 constructed of a moulded plastic or elastomeric material. A circular air passage 21 (referred to herein as a "respiratory orifice") is formed completely through the device.
A groove 22 is formed in the outer surface of the device to receive the user's teeth.
-~ 13329~5 A recess 23 is formed in the front surface of the device, forming a rim 24. This construction saves material and lightens the device but is not essential to the invention.
A corresponding recess 25 in the rear surface of the device allows the user to insert his or her tongue to control the flow of air through the device. So long as the user is able to breathe only through his or her nostrils, the user will complete-ly cut off the flow of air through the mouth, avoiding the usual snoring problem. However if the user is unable to breathe completely through his or her nose due to congestion or the like, the user is able to withdraw the tongue, or it may be withdrawn involuntarily during sleep.
As shown in Figure 1, when the user's teeth grip the device in groove 22, the user's lips naturally seal around the oval exterior shape of the device. The dimensions of the device vary according to the size of the mouth of the individual, but for the typical adult the device is 1.25 to 1.5 inches long, about 2 inches at maximum front width and 1.5 inches at maximum front height. The separation of the teeth for an adult size device will be about 1.25 inches, while for a child the separ-ation will be about .5 inches. This is not taking into account the orthodontical depth of teeth groove 22 which may be up to about 3/16 inches. The slight taper from front to rear facili-tates the sealing of the user's lips around the device. The tongue recess allows the user's tongue to extend about .75 inches into the device passing beyond the tooth line.
The diameter of air passage 21 has been found to be critical if air is to be taken in through the mouth. It has been found that the cross-sectional area of the air passage 21 should approximate the corresponding area of the user's nostrils.
Typically this means a diameter of approximately 3/8 inches. By limiting the size of the aperture in this way, the volume of air taken in through the mouth approximates the volume normally taken in through the nostrils, also reducing organic dust intake which ~ 1332905 cause a reaction in the pharynx and may result in involuntary closure of the pharynx.
Any suitable mouldable plastic may be used for the device. A suitable material would be a heat-sensitive synthetic such as ethylene vinyl acetate used for hockey mouth guards which softens sufficiently in hot water to mould the material to the individual's mouth. An orthodontic tooth impression is made by boiling the material repeatedly until a 3/16 inches is made for the teeth. This impression locks the device in place during sleep.
The device thus operates in two modes. When the user's tongue is blocking the air passage, the device effectively seals the mouth passage due to the tapered shape and position of the teeth groove. When air is allowed through the air passage, snoring is prevented by the control of air flow through the air passage and also the thickness of the device between the user's jaws causes the air passage at the rear of the mouth to be opened.
While one beneficial effect of the use of the device has been found to be the reduction of snoring, use of the device has also been found to alleviate apnea, or the cessation of breathing, which may occur during REM sleep. By controlling the flow of air into the mouth, the device apparently provides the patient with a more regular breathing cycle.
CASE STUDY
X was a chronic snorer who reported nocturnal apnea, recurrent nocturnal awakening, unrefreshing sleep and excessive daytime hypersomnolence. X's sleep was monitored in a clinical situation. The invention was put into X's mouth after three hours of sleep. Prior to using the invention, X demonstrated severe snoring and a maximum 72 decibels with associated obstructive hypopnea. After the invention was placed in X's - 13329~
mouth, no further snoring was observed and X awoke in the morning refreshed. The obstructive sleep apnea/hypopnea with associated arterial oxygen desaturation which had been observed was relieved by the use of the invention.
As will be apparent to those skilled in the art various modifications of the structure described above without departing from the spirit of the invention, the scope of which is to be construed in light of the following claims.
BACKGROUND OF THE lNV~N'l'lON
The invention relates to the treatment of snoring in humans and more particularly to a method and apparatus for the treatment of snoring and apnea.
DESCRIPTION OF THE PRIOR ART
Snoring, the generation of noise during sleep due to the vibration of the fleshy portions of the pharynx including the uvula, affects a large portion of the population. In its more serious manifestations, snoring can seriously disrupt the sufferer's sleep and may be related to apnea, the periodic cessation of breathing during sleep.
Despite considerable research devoted to the problem of snoring over many years, no progress has been made to a successful treatment for the problem. Various theories have been espoused resulting in a number of methods and apparatus for the treatment of snoring. For example, West German patent No. 65194, issued November 1, 1892 to Otto Francke in Cottbus discloses a device for insertion into the snorer's mouth which has a rubber tube flattened on one end. The flattened end was to be rested on the tip of the tongue as this would keep the tongue moving and the mouth salivating. Apparently it was thought that by keeping the mouth closed and the throat moist, snoring would be reduced.
Similarly, in United States patent No. 746,869 issued December 15, 1903 to Moulton, a mouthpiece having a one-way valve was provided which prevented the ingress of air through the mouth and regulated the egress of air through the mouth. Again it was thought that the flow of air through the mouth caused the drying of the throat which in turn caused snoring and therefore it was thought desirable to cut off all breathing through the mouth.
More recent theories have postulated that snoring might be treated by opening the air passage at the back of the throat by pulling the tongue forward. For example United States patent No. 4,304,227 issued December 8, 1981 to Samelson and United States patent No. 4,676,240 issued June 30, 1987 to Gardy disclose devices positioned in the mouth for holding the tongue forward during sleep. United States patent No. 3,132,647 issued May 12, 1964 to Corniello discloses a device which achieves this result using a metal pad to depress the rear portion of the tongue.
British patent No. 1,248,474 issued October 6, 1971 discloses a device for preventing snoring which keeps the lips apart and allows a restricted amount of breathing through the mouth. This device however does not separate the wearer's teeth and the size of the air passage is such as to be extremely restrictive of air flow through the mouth.
SUMMARY OF THE lNv~N~l~lON
The present invention provides an improved method and apparatus for treatment of snoring and apnea. The method provides the steps of regulating the flow of air through the mouth of the user to an extent comparable to the volume of air which flows through the user's nasal passages. The apparatus provides a device having a body portion sufficiently wide to separate the user's teeth and provided with an air passage comparable in area to the area of the user's nasal passages. In a preferred form of the invention the user is able to seal the air passage with his tongue to completely suppress the flow of air through the mouth and to control the turbulence of the air meeting the nasal inspiration.
BRIEF DESCRIPTION OF THE DRAWINGS
In drawings which illustrate an embodiment of the invention:
Fig. 1 is a cross-sectional view showing the device of the invention in use in a patient's mouth;
Fig. 2 is a perspective view of the device of the invention;
Fig. 3 is a cross-sectional view taken along lines III-III of Fig. 2;
Fig. 4 is front view of the device shown in Fig. 2; and Fig. 5 is a cross-sectional view taken along lines V-V of Fig. 2.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
Referring to Figure 1, the device of the invention, shown as 1, is located in the mouth of a user 2. The mouth has upper lip 3, lower lip 4, upper jaw 5, lower jaw 6, tongue 7, uvula 8, upper teeth 9 and lower teeth 10. The pharynx is designated 11, the nasal cavity as 12 and nostril 13. During normal breathing air is drawn through nostril 13, passes through nasal passage 12 and past pharynx 11 to proceed to the lungs.
Normally air flows smoothly past the uvula and pharynx which remain relatively firm. However, snoring is caused when air flowing through the mouth creates turbulence and causes the soft flesh of uvula 8 and pharynx 11 to vibrate.
The device of the present invention is shown in more detail in Figures 2 through 5. It consists of a tapered body portion 20 constructed of a moulded plastic or elastomeric material. A circular air passage 21 (referred to herein as a "respiratory orifice") is formed completely through the device.
A groove 22 is formed in the outer surface of the device to receive the user's teeth.
-~ 13329~5 A recess 23 is formed in the front surface of the device, forming a rim 24. This construction saves material and lightens the device but is not essential to the invention.
A corresponding recess 25 in the rear surface of the device allows the user to insert his or her tongue to control the flow of air through the device. So long as the user is able to breathe only through his or her nostrils, the user will complete-ly cut off the flow of air through the mouth, avoiding the usual snoring problem. However if the user is unable to breathe completely through his or her nose due to congestion or the like, the user is able to withdraw the tongue, or it may be withdrawn involuntarily during sleep.
As shown in Figure 1, when the user's teeth grip the device in groove 22, the user's lips naturally seal around the oval exterior shape of the device. The dimensions of the device vary according to the size of the mouth of the individual, but for the typical adult the device is 1.25 to 1.5 inches long, about 2 inches at maximum front width and 1.5 inches at maximum front height. The separation of the teeth for an adult size device will be about 1.25 inches, while for a child the separ-ation will be about .5 inches. This is not taking into account the orthodontical depth of teeth groove 22 which may be up to about 3/16 inches. The slight taper from front to rear facili-tates the sealing of the user's lips around the device. The tongue recess allows the user's tongue to extend about .75 inches into the device passing beyond the tooth line.
The diameter of air passage 21 has been found to be critical if air is to be taken in through the mouth. It has been found that the cross-sectional area of the air passage 21 should approximate the corresponding area of the user's nostrils.
Typically this means a diameter of approximately 3/8 inches. By limiting the size of the aperture in this way, the volume of air taken in through the mouth approximates the volume normally taken in through the nostrils, also reducing organic dust intake which ~ 1332905 cause a reaction in the pharynx and may result in involuntary closure of the pharynx.
Any suitable mouldable plastic may be used for the device. A suitable material would be a heat-sensitive synthetic such as ethylene vinyl acetate used for hockey mouth guards which softens sufficiently in hot water to mould the material to the individual's mouth. An orthodontic tooth impression is made by boiling the material repeatedly until a 3/16 inches is made for the teeth. This impression locks the device in place during sleep.
The device thus operates in two modes. When the user's tongue is blocking the air passage, the device effectively seals the mouth passage due to the tapered shape and position of the teeth groove. When air is allowed through the air passage, snoring is prevented by the control of air flow through the air passage and also the thickness of the device between the user's jaws causes the air passage at the rear of the mouth to be opened.
While one beneficial effect of the use of the device has been found to be the reduction of snoring, use of the device has also been found to alleviate apnea, or the cessation of breathing, which may occur during REM sleep. By controlling the flow of air into the mouth, the device apparently provides the patient with a more regular breathing cycle.
CASE STUDY
X was a chronic snorer who reported nocturnal apnea, recurrent nocturnal awakening, unrefreshing sleep and excessive daytime hypersomnolence. X's sleep was monitored in a clinical situation. The invention was put into X's mouth after three hours of sleep. Prior to using the invention, X demonstrated severe snoring and a maximum 72 decibels with associated obstructive hypopnea. After the invention was placed in X's - 13329~
mouth, no further snoring was observed and X awoke in the morning refreshed. The obstructive sleep apnea/hypopnea with associated arterial oxygen desaturation which had been observed was relieved by the use of the invention.
As will be apparent to those skilled in the art various modifications of the structure described above without departing from the spirit of the invention, the scope of which is to be construed in light of the following claims.
Claims (7)
1. A device for reducing or preventing snoring in a human subject having nostrils, a mouth and tongue, comprising:
a) a body portion having an outer lip-receiving surface sized to sealingly fit in said subject's mouth, and having a front and a rear surface;
b) an air passage formed in said body portion communi-cating between said front surface and said rear surface and having a cross-sectional area comparable to the cross-sectional area of said subject's nostrils; and c) an aperture formed in said rear surface of said body portion communicating with said air passage and having a surface sized and shaped to permit said subject to releasably seal said air passage with said tongue;
whereby said device may be lodged between said subject's lips thereby forming an airtight seal around said lip-receiving surface, and whereby said subject may block or unblock said air passage with said tongue according to the subject's need for air through said passage during sleep.
a) a body portion having an outer lip-receiving surface sized to sealingly fit in said subject's mouth, and having a front and a rear surface;
b) an air passage formed in said body portion communi-cating between said front surface and said rear surface and having a cross-sectional area comparable to the cross-sectional area of said subject's nostrils; and c) an aperture formed in said rear surface of said body portion communicating with said air passage and having a surface sized and shaped to permit said subject to releasably seal said air passage with said tongue;
whereby said device may be lodged between said subject's lips thereby forming an airtight seal around said lip-receiving surface, and whereby said subject may block or unblock said air passage with said tongue according to the subject's need for air through said passage during sleep.
2. The device of claim 1 wherein said body portion is tapered.
3. The device of claim 1 wherein said body portion is provided with means to receive teeth of said subject to thereby facilitate the gripping of the device in the mouth of said subject.
4. The device of claim 1 wherein said body portion is oval in cross-sectional shape.
5. The device of claim 1 wherein said air passage has a diameter of approximately 3/8 inches.
6. The device of claim 3 wherein the depth of said body portion between the teeth of the subject is between .5 and 1.5 inches.
7. The device of claim 1 wherein the depth of said rear aperture is between .5 inches and 1 inch.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000593417A CA1332905C (en) | 1989-03-10 | 1989-03-10 | Method and apparatus for treatment of snoring |
| US07/400,353 US5046512A (en) | 1989-03-10 | 1989-08-30 | Method and apparatus for treatment of snoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000593417A CA1332905C (en) | 1989-03-10 | 1989-03-10 | Method and apparatus for treatment of snoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1332905C true CA1332905C (en) | 1994-11-08 |
Family
ID=4139752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000593417A Expired - Fee Related CA1332905C (en) | 1989-03-10 | 1989-03-10 | Method and apparatus for treatment of snoring |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5046512A (en) |
| CA (1) | CA1332905C (en) |
Families Citing this family (151)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5207221A (en) * | 1989-06-26 | 1993-05-04 | Stulbach Nathan H | Aerated respiratory mouthpiece (oral gum separator) |
| US5154184A (en) * | 1991-09-16 | 1992-10-13 | Alvarez Ramiro M | Adjustable anti-snoring apparatus |
| US5514131A (en) * | 1992-08-12 | 1996-05-07 | Stuart D. Edwards | Method for the ablation treatment of the uvula |
| US5373859A (en) * | 1993-04-19 | 1994-12-20 | Forney; Leroy S. | Tongue positioning device |
| US5427117A (en) | 1993-09-29 | 1995-06-27 | Thornton; W. Keith | Apparatus for prevention of snoring and improved breathing during sleep |
| US5465734A (en) * | 1994-01-12 | 1995-11-14 | Snorex, Inc. | Adjustable tongue positioning device and method |
| US5678567A (en) * | 1994-03-25 | 1997-10-21 | Thornton; W. Keith | Apparatus for adjusting a dental device |
| US5707349A (en) * | 1994-05-09 | 1998-01-13 | Somnus Medical Technologies, Inc. | Method for treatment of air way obstructions |
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| US6044846A (en) * | 1994-06-24 | 2000-04-04 | Edwards; Stuart D. | Method to treat esophageal sphincters |
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| US6405732B1 (en) | 1994-06-24 | 2002-06-18 | Curon Medical, Inc. | Method to treat gastric reflux via the detection and ablation of gastro-esophageal nerves and receptors |
| US5947724A (en) * | 1995-06-23 | 1999-09-07 | Frantz; Don E. | Elastic mandibular advancement appliance with slide-in bite planes |
| US5794627A (en) * | 1995-06-23 | 1998-08-18 | Frantz; Don E. | Disposable mandibular advancement appliance |
| US5624439A (en) * | 1995-08-18 | 1997-04-29 | Somnus Medical Technologies, Inc. | Method and apparatus for treatment of air way obstructions |
| US6263877B1 (en) | 1995-11-13 | 2001-07-24 | Robert A. Gall | Snore prevention apparatus |
| US5800379A (en) * | 1996-02-23 | 1998-09-01 | Sommus Medical Technologies, Inc. | Method for ablating interior sections of the tongue |
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| US5720302A (en) * | 1996-03-01 | 1998-02-24 | Belfer; William A. | Anti-snoring device having an external shield |
| US5743904A (en) * | 1996-05-06 | 1998-04-28 | Somnus Medical Technologies, Inc. | Precision placement of ablation apparatus |
| US7022105B1 (en) | 1996-05-06 | 2006-04-04 | Novasys Medical Inc. | Treatment of tissue in sphincters, sinuses and orifices |
| US8353908B2 (en) | 1996-09-20 | 2013-01-15 | Novasys Medical, Inc. | Treatment of tissue in sphincters, sinuses, and orifices |
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| US774446A (en) * | 1904-05-19 | 1904-11-08 | Stillman Augustus Moulton | Device for preventing snoring. |
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-
1989
- 1989-03-10 CA CA000593417A patent/CA1332905C/en not_active Expired - Fee Related
- 1989-08-30 US US07/400,353 patent/US5046512A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US5046512A (en) | 1991-09-10 |
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| MKLA | Lapsed |