US3721233A - T-shaped tracheal stent - Google Patents

T-shaped tracheal stent Download PDF

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Publication number
US3721233A
US3721233A US3721233DA US3721233A US 3721233 A US3721233 A US 3721233A US 3721233D A US3721233D A US 3721233DA US 3721233 A US3721233 A US 3721233A
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portion
tracheotomy
intraluminal
stent
orifice
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W Montgomery
E Hood
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SAFETY FUND NATIONAL BANK
SOUTH SHORE BANK A TRUST Co OF MA
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W Montgomery
E Hood
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Assigned to BARBER ENTERPRISES, INCORPORATED, reassignment BARBER ENTERPRISES, INCORPORATED, ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HOOD, EUGENE B.
Assigned to ROCKLAND TRUST COMPANY reassignment ROCKLAND TRUST COMPANY SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: E. BENSON HOOD LABORATORIES, INC. A MA CORP.
Assigned to E. BENSON HOOD LABORATORIES, INC. reassignment E. BENSON HOOD LABORATORIES, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE AUGUST 16, 1984 Assignors: BARBER ENTERPRISES, INCORPORATED
Assigned to BOSTON MEDICAL PRODUCTS, INC., ("BMP") reassignment BOSTON MEDICAL PRODUCTS, INC., ("BMP") ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MONTGOMERY, WILLIAM W.
Assigned to SOUTH SHORE BANK, A TRUST COMPANY OF MA. reassignment SOUTH SHORE BANK, A TRUST COMPANY OF MA. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: E. BENSON HOOD LABORATORIES, INC., A MA. CORP.
Anticipated expiration legal-status Critical
Assigned to SAFETY FUND NATIONAL BANK reassignment SAFETY FUND NATIONAL BANK ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOSTON MEDICAL PRODUCTS
Application status is Expired - Lifetime legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0465Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters

Abstract

A T-shaped stent for use following surgical reconstruction of the cervical trachea and surgical correction of tracheal and subglottic stenosis. The stent comprises a tubular intraluminal portion and a tubular tracheotomy portion connected thereto between its ends and provided with a removable plug. The tubular portions are of a resiliently yieldable stock enabling the ends of the intraluminal portion to be folded together or against the tracheotomy portion for insertion and removal through a tracheotomy orifice. The intraluminal portion provides internal support for the repaired part of the trachea and the cross sectional area of the tracheotomy portion increases at its junction with the intraluminal portion to an axial extent such that external tapering surfaces are provided for entry into the posterior end of the orifice to provide molding support for and overcorrecting the inferior margin of adjacent portions of the anterior tracheal wall.

Description

United States Patent 91 Montgomery et a1.

[ 5]March 20, 1973 [54] T-SHAPED TRACHEAL STENT [22] Filed: Oct. 30, 1970 [21] Appl. No.: 85,530

Primary Examiner-Channing L. Pace Attorney-Abbott Spear [57] ABSTRACT A T-shaped stent for use following surgical reconstruction of the cervical trachea and surgical correction of tracheal and subglottic stenosis. The stem comprises a tubular intraluminal portion and a tubular tracheotomy portion connected thereto between its ends and provided with a removable plug. The tubular portions are of a resiliently yieldable stock enabling the ends of the intraluminal portion to be folded together or against the tracheotomy portion for insertion and removal through a tracheotomy orifice. The intraluminal portion provides internal support for the repaired part of the trachea and the cross sectional area of the tracheotomy portion increases at its junction with the intraluminal portion to an axial extent such that external tapering surfaces are provided for entry into the posterior end of the orifice to provide molding support for and overcorrecting the inferior margin of adjacent portions of the anterior tracheal wall.

2 Claims, 7 Drawing Figures PATENTEDHARZO I975 SHEET 10F 5 INVENTORS WILL/AM W MONTGOMERY EUGENE B. HOOD BY o ATTORN PATENTEUMARZOIUYB ,7 1,233

FIG. 3

(2) --P ULL INVENTORS WILL/AM W MONTGOMERY 5 /6 EUGENE 8. H000 BY aw-M AT ToRNi PATENTEUmzo I975 SHEET 3 OF 3 I mm l'n'lu'll I K o FIG. 7

INVENTORS WILL/AM W MONTGOMERY EUGENE B. HOOD ATTORN Y T-SIIAPED TRACHEAL STENT The present invention relates to T-shaped tracheal stents and a scar tissue controlling method for use following surgical reconstruction of the cervical portion of the trachea and surgical correction of tracheal and subglottic stenosis.

The present invention relates to T-shaped tracheal stents and a scar tissue controlling method for use following surgical reconstruction of the cervical portion of the trachea and surgical correction of tracheal and subglottic stenosis.

We developed a T-shaped stent for insertion into the trachea in the zone where is was reconstructed or corrected, the stent consisting of an intraluminal tube and a tracheotomy tube joined thereto between its ends. Both tubes were of a soft flexible material, silicone rubber in practice, that had sufficient resiliency to enable the stent to be readily deformed by folding one of its intraluminal portions against the tracheotomy portion or with both intraluminal portions folded together for entry or removal through the tracheotomy and also to conform, when inserted, to normal contours of the trachea and yet provide good support therefor.

These stents have been used with success in a substantial number of operations. While their use clearly promotes healing, it has been noted that after the tracheal orifice has healed, scar tissue will often be found that projects into the tracheal passage to a troublesome extent.

The principal objective of the invention is to provide a T-shaped stent possessed of the virtues of the one whose construction was just summarized and that will prevent the resulting scar tissue from being a troublesome problem. In accordance with the invention, this objective is attained by providing that the tracheotomy tube has, at its junction with the intraluminal tube, a cross sectional area that so increases towards the intraluminal tube as to provide external surfaces that taper through a predetermined axial zone thus to provide molding surfaces for entry into the posterior end of the tracheotomy to overcorrect the inferior margins of adjacent portions of the anterior tracheal wall and thereby prevent objectionable scar tissue from ultimately projecting into the tracheal passage.

A particular objective of the invention is to have such molding surfaces disposed towards the opposite ends of the intraluminal portion.

Yet another objective of the invention is to provide that the junction between the two tubular portions provides internal surfaces that are flared towards the ends of the intraluminal portions thus to facilitate the introduction of a catheter into an intraluminal portion through the tracheotomy portions if its use becomes necessary.

Another objective of the invention is to provide a method by which scar tissue at the posterior end of a tracheal orifice can be prevented from being an interference within the trachea, an objective attained by overconnecting the inferior layer of portions of the anterior tracheal wall adjacent the orifice with a molding tracheotomy support.

In the accompanying drawings, there is shown an embodiment of the invention illustrative of these and other of its objectives, novel features, and advantages. In the drawings:

FIG. 1 is a section taken vertically through the trachea illustrating the introduction of one end of the intraluminal portion of the stent into the surgically established tracheal orifice;

FIG. 2 is a like view illustrating the entered end of the stent being inserted downwardly into the trachea;

FIG. 3 is a view similar to FIG. 2 illustrating the introduction of the other end of the intraluminal portion into the trachea to extend upwardly therein;

FIG. 4 is a like view illustrating the final step in positioning the installed stent;

FIG. 5 is another like view showing the installed stent with a plug inserted in the exposed end of its tracheotomy portion;

FIG. 6 is a side elevation of a stent in accordance with the invention; and

FIG. 7 is a view of the stent as seen from the free end of the tracheotomy portion.

A T-shaped tracheal stent in accordance with the invention is generally indicated at 10 and, as may best be seen in FIGS. 6 and 7, it comprises an intraluminal portion 11 and a tubular tracheotomy portion 12 of a somewhat smaller diameter and joined to the portion 11 between the ends thereof with the lower portion slightly longer than the upper portion. The portion 11 has both of its ends inwardly curved as at 13 while the outer or free end of the tracheotomy portion 12 is inwardly curved as at 14 and is closed by a stopper or plug 15. The portions 11 and 12 are of a soft, resiliently yieldable material such as silicone rubber that is relatively inert. In practice, the wall thickness of the tubular portions 11 and 12 is in the neighborhood of 1.5 mil and their outside diameters vary as the stents are made available to meet requirements ranging from male adults to infants as the intraluminal portions must fit the trachea l6 snugly to provide support therefor. By way of example, the outside diameter of the intraluminal portion for pediatric uses is 8 mm, that for adolescents 10 mm, while the adult sizes are 12 mm, 14 mm, and 16 mm. Either end of the portion 11 may be trimmed if necessary. The stent 10, as thus far described is substantially that previously referred to as having been successfully used for some time.

In accordance with the invention, the cross sectional area of the tracheotomy tube 12 is increased to have a cross sectional area greater than that of the tracheotomy orifice through an appreciable axial zone where it joins the intraluminal tube 11 to provide tapering surfaces for entry into the posterior end of the tracheotomy orifice 17 and provide molding support therefor. As shown in the drawings, the increased cross sectional area is such that the molding surfaces are in the form of shoulders 18, each disposed toward an end of the intraluminal portion 11, the molding shoulders being for use in overcorrecting the inferior margin of the anterior tracheal wall adjacent the tracheotomy orifice 17. In practice, the shoulders are arcuate with the radius varying with the diameter of the intraluminal portion in the neighborhood of five thirty-seconds of an inch with the 12 mm intraluminal tube. This construction provides another advantageous feature since it results in the junction between the tubes being in the form of a mouth 19, see FIG. 6, flared towards the ends of the intraluminal portion 11 to enable catheter insertion to be more easily effected than is the case with a substantially right angular junction.

Such a stent is installed through the tracheotomy orifice 17 following surgical reconstruction of the cervical portion of the trachea 16 or correction of tracheal and subglottic stenosis. Reference is made to FIGS. 1 4 to show the manner in which the stent is installed.

A stent 10 is selected for use having the diameter of its intraluminal portion 1 1 such as to provide a supporting fit for the patients trachea when inserted therein. As shown in FIG. 1, the end of the stent portion 11 that is to extend upwardly in the trachea is gripped by forceps by which the other end may be entered into and pushed through the tracheotomy orifice 17 and downwardly into the trachea 16. As will be apparent from FIG. 2, the inwardly curved end 13 facilitates such entry.

In FIG. 3, it will be noted that as the forceps-held end of the portion 11 is forced through the tracheotomy orifice, the stent collapses at the junction of the portions 11 and 12. The stent portion 11 is then released and the outer end of the tubular portion 12 is then gripped by the forceps with an outward pull moving the intraluminal portion into a position supporting the cervical portion of the trachea and the shoulders 18 into molding contact with the posterior end of the tracheotomy to overcorrect the inferior margin 16A of the reconstructed or reconstituted anterior tracheal wall, see FIG. 5, thus to prevent any resulting scar tissue from projecting into the trachea when the tracheotomy has healed. By way of example, anterior tracheal stenosis is a collapse or buckling in of the anterior tracheal wall requiring surgery to enable the tracheal rings to be repositioned or the anterior wall supported by the sternohyoid muscles. In either case, scar tissue is present that must be removed and a stent in accordance with the invention prevents recurrence of scar tissue formation and thus prevents recurrent stenosis.

We claim:

1. A T-shaped stent for insertion through a tracheotomy orifice into a trachea following surgical reconstruction of the cervical portion thereof, and surgical correction of tracheal and subglottic stenosis, said stent comprising an intraluminal tubular portion open at both ends and whose outside diameter is such as to provide a snugly fitting internal support for the reconstructed or corrected part of the trachea, and an integral tracheotomy tubular portion of a diameter less than that of the intraluminal portion and disposed at an angle thereto intermediate the ends thereof and in communication with the interior of said intraluminal portion, and said tracheotomy portion being of a length to project outwardly through a tracheotomy orifice after the disposition of the intraluminal portion within a trachea through said orifice, the junction of the two portions being ovate with its long axis lengthwise of the intraluminal portion and providing external flared shoulders lengthwise of both portions and of substantial axial such as to provide, when the stent is in place, molding surfaces for entry into the interior end of the tracheotomy orifice in molding support of the margin of adjacent margins of the tracheal wall and operable to overcorrect said margins thereby to avoid the protrusion of any resulting scar tissue into the trachea, said stent being of resiliently yieldable stock enabling one end of the intraluminal portion to be folded against the

Claims (2)

1. A T-shaped stent for insertion through a tracheotomy orifice into a trachea following surgical reconstruction of the cervical portion thereof, and surgical correction of tracheal and subglottic stenosis, said stent comprising an intraluminal tubular portion open at both ends and whose outside diameter is such as to provide a snugly fitting internal support for the reconstructed or corrected part of the trachea, and an integral tracheotomy tubular portion of a diameter less than that of the intraluminal portion and disposed at an angle thereto intermediate the ends thereof and in communication with the interior of said intraluminal portion, and said tracheotomy portion being of a length to project outwardly through a tracheotomy orifice after the disposition of the intraluminal portion within a trachea through said orifice, the junction of the two portions being ovate with its long axis lengthwise of the intraluminal portion and providing external flared shoulders lengthwise of both portions and of substantial axial such as to provide, when the stent is in place, molding surfaces for entry into the interior end of the tracheotomy orifice in molding support of the margin of adjacent margins of the tracheal wall and operable to overcorrect said margins thereby to avoid the protrusion of any resulting scar tissue into the trachea, said stent being of resiliently yieldable stock enabling one end of the intraluminal portion to be folded against the tracheotomy portion or both ends thereof to be folded together for insertion and removal through said orifice, and means releasably closing the exposed end of the tracheotomy portion.
2. The T-shaped stent of claim 1 in which the external molding surfaces of the tracheotomy portion are arcuate with their radius varying with the diameter of the intraluminal portion.
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Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003381A (en) * 1974-07-03 1977-01-18 Gilbert Max I Cricothyrostomy instrument
FR2509605A1 (en) * 1981-07-17 1983-01-21 Delacroix Chevalier Prosthetic larynx mounted in trachea - comprises hollow cylinder with radial opening in side wall from which tube extends and opens onto exterior of throat
WO1986006970A2 (en) * 1985-05-21 1986-12-04 Walter Koss Tracheotomy closure
US4795465A (en) * 1987-05-14 1989-01-03 Hood Laboratories Tracheobronchial stent
US5054483A (en) * 1989-03-06 1991-10-08 Hood Laboratories Tracheal cannulas and stents
US5054484A (en) * 1990-11-21 1991-10-08 Hebeler Jr Robert F Tracheostomy device
US5107828A (en) * 1985-05-21 1992-04-28 Walter Koss Tracheostoma closure device
US5184610A (en) * 1989-03-06 1993-02-09 Hood Laboratories Tracheal cannulas and stents
US6162237A (en) * 1999-04-19 2000-12-19 Chan; Winston Kam Yew Temporary intravascular stent for use in retrohepatic IVC or hepatic vein injury
US20030009209A1 (en) * 1996-01-26 2003-01-09 Hikmat Hojeibane Bifurcated axially flexible stent
US20040148032A1 (en) * 2003-01-29 2004-07-29 Rutter Michael John Airway stent
US20050005936A1 (en) * 2003-06-18 2005-01-13 Wondka Anthony David Methods, systems and devices for improving ventilation in a lung area
US20050034721A1 (en) * 2003-08-11 2005-02-17 Lutz Freitag Tracheal catheter and prosthesis and method of respiratory support of a patient
US20060231102A1 (en) * 2002-08-20 2006-10-19 Bordewick Steven S Face mask support
US20070276486A1 (en) * 2006-05-25 2007-11-29 E. Benson Hood Laboratories Coated tracheostomy tube and stoma stent or cannula
US20070277827A1 (en) * 2006-04-10 2007-12-06 Bordewick Steven S Apparatus and methods for administration of positive airway pressure therapies
US20080006275A1 (en) * 2006-07-07 2008-01-10 Steven Nickelson Composite masks and methods for positive airway pressure therapies
US20080029088A1 (en) * 2006-05-18 2008-02-07 Breathe Technologies, Inc. Tracheostoma spacer, tracheotomy method, and device for inserting a tracheostoma spacer
US20080053451A1 (en) * 2002-08-20 2008-03-06 Bordewick Steven S Face mask support
US20080099017A1 (en) * 2006-06-16 2008-05-01 Bordewick Steven S Modular positive airway pressure therapy apparatus and methods
US20090078258A1 (en) * 2007-09-21 2009-03-26 Bowman Bruce R Pressure regulation methods for positive pressure respiratory therapy
US20090078255A1 (en) * 2007-09-21 2009-03-26 Bowman Bruce R Methods for pressure regulation in positive pressure respiratory therapy
US20090107494A1 (en) * 2005-09-20 2009-04-30 Lutz Freitag Systems, methods and apparatus for respiratory support of a patient
US20090156953A1 (en) * 2007-05-18 2009-06-18 Breathe Technologies, Inc. Methods and devices for sensing respiration and providing ventilation therapy
US20100071693A1 (en) * 2008-08-22 2010-03-25 Breathe Technologies Methods and devices for providing mechanical ventilation with an open airway interface
US20100170513A1 (en) * 2009-01-08 2010-07-08 Bowditch Nathaniel L Self-contained, intermittent positive airway pressure systems and methods for treating sleep apnea, snoring, and other respiratory disorders
US20110108037A1 (en) * 2009-11-12 2011-05-12 Jose Pablo Diaz Jimenez Enhancements introduced into prolonged tracheal cannulation processes
US8136527B2 (en) 2003-08-18 2012-03-20 Breathe Technologies, Inc. Method and device for non-invasive ventilation with nasal interface
US8381729B2 (en) 2003-06-18 2013-02-26 Breathe Technologies, Inc. Methods and devices for minimally invasive respiratory support
US8567399B2 (en) 2007-09-26 2013-10-29 Breathe Technologies, Inc. Methods and devices for providing inspiratory and expiratory flow relief during ventilation therapy
US8770193B2 (en) 2008-04-18 2014-07-08 Breathe Technologies, Inc. Methods and devices for sensing respiration and controlling ventilator functions
US8776793B2 (en) 2008-04-18 2014-07-15 Breathe Technologies, Inc. Methods and devices for sensing respiration and controlling ventilator functions
US8919344B2 (en) 2011-02-08 2014-12-30 Hancock Medical, Inc. Positive airway pressure system with head position control
US8925545B2 (en) 2004-02-04 2015-01-06 Breathe Technologies, Inc. Methods and devices for treating sleep apnea
US8939152B2 (en) 2010-09-30 2015-01-27 Breathe Technologies, Inc. Methods, systems and devices for humidifying a respiratory tract
US9132250B2 (en) 2009-09-03 2015-09-15 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature
US9180270B2 (en) 2009-04-02 2015-11-10 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles within an outer tube
USD776802S1 (en) 2015-03-06 2017-01-17 Hancock Medical, Inc. Positive airway pressure system console
US9962512B2 (en) 2009-04-02 2018-05-08 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with a free space nozzle feature
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US10252020B2 (en) 2008-10-01 2019-04-09 Breathe Technologies, Inc. Ventilator with biofeedback monitoring and control for improving patient activity and health
US10265486B2 (en) 2015-07-09 2019-04-23 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature

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Cited By (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003381A (en) * 1974-07-03 1977-01-18 Gilbert Max I Cricothyrostomy instrument
FR2509605A1 (en) * 1981-07-17 1983-01-21 Delacroix Chevalier Prosthetic larynx mounted in trachea - comprises hollow cylinder with radial opening in side wall from which tube extends and opens onto exterior of throat
WO1986006970A2 (en) * 1985-05-21 1986-12-04 Walter Koss Tracheotomy closure
US5107828A (en) * 1985-05-21 1992-04-28 Walter Koss Tracheostoma closure device
WO1986006970A3 (en) * 1985-05-21 1987-04-23 Walter Koss Tracheotomy closure
US4795465A (en) * 1987-05-14 1989-01-03 Hood Laboratories Tracheobronchial stent
US5054483A (en) * 1989-03-06 1991-10-08 Hood Laboratories Tracheal cannulas and stents
US5184610A (en) * 1989-03-06 1993-02-09 Hood Laboratories Tracheal cannulas and stents
US5054484A (en) * 1990-11-21 1991-10-08 Hebeler Jr Robert F Tracheostomy device
US20030009209A1 (en) * 1996-01-26 2003-01-09 Hikmat Hojeibane Bifurcated axially flexible stent
US6162237A (en) * 1999-04-19 2000-12-19 Chan; Winston Kam Yew Temporary intravascular stent for use in retrohepatic IVC or hepatic vein injury
US20080053451A1 (en) * 2002-08-20 2008-03-06 Bordewick Steven S Face mask support
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US20040148032A1 (en) * 2003-01-29 2004-07-29 Rutter Michael John Airway stent
US8381729B2 (en) 2003-06-18 2013-02-26 Breathe Technologies, Inc. Methods and devices for minimally invasive respiratory support
US7588033B2 (en) 2003-06-18 2009-09-15 Breathe Technologies, Inc. Methods, systems and devices for improving ventilation in a lung area
US20050005936A1 (en) * 2003-06-18 2005-01-13 Wondka Anthony David Methods, systems and devices for improving ventilation in a lung area
US8955518B2 (en) 2003-06-18 2015-02-17 Breathe Technologies, Inc. Methods, systems and devices for improving ventilation in a lung area
US8418694B2 (en) 2003-08-11 2013-04-16 Breathe Technologies, Inc. Systems, methods and apparatus for respiratory support of a patient
US20110209705A1 (en) * 2003-08-11 2011-09-01 Breathe Technologies, Inc. Tracheal catheter and prosthesis and method of respiratory support of a patient
US20080041371A1 (en) * 2003-08-11 2008-02-21 Lutz Freitag Method And Arrangement For Respiratory Support For A Patient Airway Prosthesis And Catheter
US7487778B2 (en) * 2003-08-11 2009-02-10 Breathe Technologies, Inc. Tracheal catheter and prosthesis and method of respiratory support of a patient
US20050034721A1 (en) * 2003-08-11 2005-02-17 Lutz Freitag Tracheal catheter and prosthesis and method of respiratory support of a patient
US8573219B2 (en) 2003-08-18 2013-11-05 Breathe Technologies, Inc. Method and device for non-invasive ventilation with nasal interface
US8136527B2 (en) 2003-08-18 2012-03-20 Breathe Technologies, Inc. Method and device for non-invasive ventilation with nasal interface
US8925545B2 (en) 2004-02-04 2015-01-06 Breathe Technologies, Inc. Methods and devices for treating sleep apnea
US20090107494A1 (en) * 2005-09-20 2009-04-30 Lutz Freitag Systems, methods and apparatus for respiratory support of a patient
US7533670B1 (en) 2005-09-20 2009-05-19 Breathe Technologies, Inc. Systems, methods and apparatus for respiratory support of a patient
US8074645B2 (en) 2006-04-10 2011-12-13 Somnetics Global Pte. Ltd. Apparatus and methods for providing humidity in respiratory therapy
US20070277827A1 (en) * 2006-04-10 2007-12-06 Bordewick Steven S Apparatus and methods for administration of positive airway pressure therapies
US20070277825A1 (en) * 2006-04-10 2007-12-06 Bordewick Steven S Apparatus and methods for providing humidity in respiratory therapy
US9694153B2 (en) 2006-04-10 2017-07-04 Somnetics Global Pte. Ltd. Apparatus and methods for administration of positive airway pressure therapies
US8631791B2 (en) 2006-04-10 2014-01-21 Somnetics Global Pte. Ltd. Apparatus and methods for administration of positive airway pressure therapies
US9597477B2 (en) 2006-04-10 2017-03-21 Somnetics Global Pte. Ltd. Apparatus and methods for providing humidity in respiratory therapy
US8020557B2 (en) 2006-04-10 2011-09-20 Somnetics Global Pte. Ltd. Apparatus and methods for administration of positive airway pressure therapies
US8602025B2 (en) 2006-04-10 2013-12-10 Somnetics Global Pte. Ltd. Apparatus and methods for providing humidity in respiratory therapy
US20080029088A1 (en) * 2006-05-18 2008-02-07 Breathe Technologies, Inc. Tracheostoma spacer, tracheotomy method, and device for inserting a tracheostoma spacer
US8985099B2 (en) 2006-05-18 2015-03-24 Breathe Technologies, Inc. Tracheostoma spacer, tracheotomy method, and device for inserting a tracheostoma spacer
US7631642B2 (en) * 2006-05-18 2009-12-15 Breathe Technologies, Inc. Tracheostoma spacer, tracheotomy method, and device for inserting a tracheostoma spacer
US20070276486A1 (en) * 2006-05-25 2007-11-29 E. Benson Hood Laboratories Coated tracheostomy tube and stoma stent or cannula
US20080099017A1 (en) * 2006-06-16 2008-05-01 Bordewick Steven S Modular positive airway pressure therapy apparatus and methods
US20080006275A1 (en) * 2006-07-07 2008-01-10 Steven Nickelson Composite masks and methods for positive airway pressure therapies
US20090156953A1 (en) * 2007-05-18 2009-06-18 Breathe Technologies, Inc. Methods and devices for sensing respiration and providing ventilation therapy
US10058668B2 (en) 2007-05-18 2018-08-28 Breathe Technologies, Inc. Methods and devices for sensing respiration and providing ventilation therapy
US20090078255A1 (en) * 2007-09-21 2009-03-26 Bowman Bruce R Methods for pressure regulation in positive pressure respiratory therapy
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