US3137299A - Tracheotomy tube - Google Patents

Tracheotomy tube Download PDF

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US3137299A
US3137299A US12763961A US3137299A US 3137299 A US3137299 A US 3137299A US 12763961 A US12763961 A US 12763961A US 3137299 A US3137299 A US 3137299A
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duct
wall
patient
tube
annular
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Carl J Tabor
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Carl J Tabor
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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
    • A61M16/0468Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters with valves at the proximal end limiting exhalation, e.g. during speaking or coughing

Description

June 16, 1964 c. J. TABOR TRACHEOTOMY TUBE Filed July 28, 1961 INVENTOR. CARL J. TABOR W ATTORNEY United States Patent 3,137,299 TRACHEOTOMY TUBE Carl J. Tabor, 9845 Reavis Road, Alfton 23, Mo. Filed July 28, 1961, Ser. No. 127,639

.4 Claims. (Cl. 128-351) This invention relates in general to certain new and useful improvements in surgical appliances and, more particularly, to a tracheotomy tube.

Under certain pathological conditions, such as cancer of the larynx, for instance, surgical removal of an extensive amount of tissue in the upper portions of the trachea becomes necessary. As a result of such surgical procedures, the passage between the trachea and the otolaryngeal cavity are seriously impaired or completely blocked and the patient cannot breath unless a new auxiliary air-passage through the trachea is artificially created. To provide such auxiliary air-passage, it has become routine surgical practice to cut an opening through the throat of the patients neck above the bronchi and install a metal breathing tube, which is commonly referred to as a tracheotomy tube. However, tracheotomy tubes which have heretofore been available have been found to be rather unsatisfactory in many instances, since it has come to be recognized that the maintenance of a clear air-way employing conventional tracheotomy tubes is often impossible. This is forcefully illustrated at the autopsy of patients who die after a tracheotomy and are found to have complete air-way obstruction due to mucopurulent exudate in the bronchi.

In the normal trachea, such secretions are raised from the periphery of the lungs by coughing and by ciliary action. Unless one or both of these mechanisms are operative, endotracheal aspiration may be insuflicient to maintain a free air-way. With the conventional tracheotomy tube, effective cough is nullified by the presence of a tracheal fistula. It has also been observed that theciliary mechanism becomes impaired in the early hours after the performance of a tracheotomy. An acute rangement, and combination of 3,137,299 Patented June 16, 1964 With the above and other objects in view, my invention resides in the novel features of form, construction, ar-

parts presently described and pointed .out' in the claims. a

In the accompanying drawings:

FIG. 1 is a side elevational view of a tracheotomy tube constructed in accordance with and embodying the present invention;

FIG. 2 is a longitudinal sectional view' taken along line 2-2 of FIG. 1; FIG. 3 is an end elevational view of the tracheotomy tube;

FIG. 4 is a transverse sectional view taken along line 44ofFIG.1;and f FIG. 5 is a diagrammatic sketch showingthetracheotomyin place in a patient.

Referring now in more detail and by reference charactersto the drawings, which illustrate a preferred embodiment of the present invention, A designates a tracheotomy tube comprising an elongated tubular duct 1 formed of inert polyvinylacetate plasticized to a degree of resiliency such that the duct l may be readily inserted into and withdrawnfrom the trachea. The duct, 1 is of substantially circular cross-sectional shape and is integrally provided, upon its outer surface, with a plurality of uniformly spaced annular beads 2 and, adjacent its interior end, that is to say the end which is inserted into the trachea, the duct 1 is diametrally reduced in the provision of a very short concentric constriction 3, which is, in turn, integrally joined to a relatively large diameter, flexible, annular flange 4.

At its other or'exterior end, the tubular duct 1 is inte grally provided with a diametrally enlarged concentric tracheobronchitis develops promptly and frequently extends to the most peripheral bronchial branches. The cilia are destroyed and the mucosa maybe completely denuded in the area of inflammation. One of the very substantial factors in creating this condition is the presence of an inlying metallic foreign body which extends through the tracheal wall and is bent so as to curve downwardly therein. 7

It is, therefore, the primary object of the present invention to provide a non metallic tracheotomy tube which cylindrical cup 5 which is joined to the tubular duct 1 by means of a flat annular wall 6, the latter being diametrally larger than the outside diametral size of the cup, thereby. providing an external annular flange 7. Formed integrally upon the outer periphery of the flange 7, in diametrally opposed relationship, are two flexible ears 8, 9,

which are disposed in outwardly spaced parallel relation to, and are substantially shorter than, the cup size, said ears 8, 9 being centrally provided with radially extending apertures 10, 11, respectively.

Provided for snug-fitting removable disposition over the cup 5 is acylindrical cap 12 having a flat front Wall 13 provided with four radial Web members 18, 19, 20, 21,

will not produce irritation or inflammation of the tracheal wall and is suflic iently resilient so that it is entirely comfortable for the patient when in operative position.

It is another object of the present invention to provide a tracheotomy tube which is provided with a unique valve structure enabling the patient to cough and thereby expel bronchial secretions in a substantially normal manner.

It is a further object of the present invention to provide a tracheotomy tube which is providedwith a simple, but nevertheless, highly eflicient and convenient external holding means which can be easily and quickly adjusted in accordance with the conformation and size of the patients neck.

It is an additional object of the present invention to provide a tracheotomy tube which does not destroy cilia or materially interfere in any other way with ciliary action.

It is also an object of the present invention to provide a tracheotomy tube of the type stated having an external valve-containing cap which can be readily removed for cleaning and can be very inexpensively replaced whenever necessary.

-which meet in the center of the cap 12 and integrally sup- I port a small circular disk 22having an inwardly presented button 23 integrally connected thereto by a constricted neck-portion24. The cap 12 is, furthermore,-interiorly reinforced or stiflened structually by four short axial beads 25, 26,27, 28, which are respectively aligned with 'the Webs 18, 19,20, 21, all as best seen in FIG. 4

snapffitted upon the neck-like portion 24- and held retentively by the button 23 is a thin circular valve-diaphragm 29 having an external diametral size greater than the common diameter of the apertures 14,15, 16, 17, and

smaller than the diametral distance between the beads 25- "27, and 26-28; As-will be seen by reference to FIGS.

2 and. 4, the valve diaphragm 29 will normally fit around its periphery in seated position against the interior face of the cap-.wall 13, but will be peripherally free with respect to the beads 25, 26, 27,28, thereby forming a'oneway valve, sometimes referred to as an inhalation valve, which will allow air to be drawn through the tracheotomy tube A in the direction indicated by the arrows in FIG. 2. The cap 12 is finally provided, adjacent its peripheral margin, with two diametrally opposed radially projecting prongs 30, 31, which can be removably engaged within the apertures 10, 11, of the ears 8, 9, as shown in FIGS. 1, 2, and 3. By simply flexing the ears 8, 9, outwardly, it is possible to disengage them from the ears 30, 31, in a very simple, quick, and convenient manner, thereby permitting removal of the cap 12 whenever necessary.

The diaphragm valve 29 is formed from very thin flexible sheeting and, therefore, has very low inertia. Consequently, the valve-diaphragm 29 will open very readily upon inspiration and allow the patient to inhale through the tracheal stoma with complete ease. On the other hand, the valve-diaphragm valve 29 closes with the force fining a duct, said tube being formed of a synthetic resin and being integrally provided at one end with an annular resilient flange having a sufficient degree of fiexure so of exhalation and the exhaled air is thus made to pass out I through the larynx. By means of this one-way valve structure, a closed base is produced which makes it posintegrally provided with a pair of diametrally opposed radially projecting ears 33, 34, having apertures 35, 36, respectively, through which a suitable cord, tape, or elastic lace may be threaded after having been passed around the patients neck. The collar 32 fits snugly, but nevertheless, slidably upon the tubular duct 1 and will abut retentively against any one of the annular heads 2. However, since the tubular duct 1 is somewhat flexible, it is possible to slide the collar 32 inwardly until it rests snugly against the outer skin-surface of the patients neck, substantially in the manner shown in FIG. 5. If desired, a suitable neck-encircling tie-member of the type above-mentioned can be suitably attached to the collar 32 so that the entire device will be held firmly and securely in place. Since the tie-member is entirely conventional, it is not specifically shown or described herein. In fact, it is entirely possible to use the tracheotomy tube A Without any sort of tie-member, susbtantially in the manner shown in FIG. 5.

It will, of course, be understood that tracheotomy tubes constructed with the present invention may be made in various lengths to fit individuals of any size from infancy to adulthood.

Clinical tests and observations carried on over a substantial period of time have shown that the tracheotomy tube of the present invention does not destroy cilia, permits the patient to produce an eifective cough for expelling muscus, and also permits normal speech. It has also been observed that, through use of the tracheotomy tube of the present invention, the quantity of bronchial secretions during the period of convalescence following a tracheotomy, is significantly decreased and this seems to be attributable to the decreased need for aspiration and the elimination of the metallic foreign body. In vivo radiological studies have demonstrated an intact ciliary mechanism four weeks after the performance of a tracheotomy. 1

It should be understood that changes and modifications in the form, construction, arrangement, and combination of the several parts of the surgical appliances may be made and substituted for those herein shown and described without departing from the nature and principle of my invenas to be easily insertible through theartificial' passage surgically formed in the patients neck, said flange being con- 1 nected endwise to the duct by an annularly reduced resilient constriction which is thinner than the wall-thickness of the duct and is thereby readily and easily deformed to permit insertion and when so inserted, will spring back so that the flange will be in seated engagement against the internal surface of the patients tracheal Wall, said annular -wall being of sufficient length to extend through and pro ject beyond the exterior of-the patients neck, and valve means operatively mounted across said projecting .end.

2. Aitracheotomy tube according to claim 1 in which the tube is fabricated entirely of a polyvinyl acetate and the valve means is also fabricated entirely of polyvinyl acetate.

3. A tracheotomy tube according to claim 1 in which the external surface of the annular wall is provided with a plurality of spaced annular upstanding ribs and a collar is snugly fitted upon and around the external surface of the annular wall for optional disposition between any selected pair of successive ribs.

4. A tracheotomy tube adapted for insertion into a surgically formed opening in a patients neck comprising a tubular duct formed of a synthetic resin and being integrally provided at one endwith a flexible annular flange connected to the duct by an annularly reduced resilient Y constricted portion which is thinner than the wall-thickness of the duct and is thereby readily deformed to permit insertion and when so inserted will spring back into seated engagement against the internal surface of the patients tracheal wall, said tubular duct being of sufiicient length to extend through and project, beyond the exterior of the patients neck, said duct being integrally provided upon its external end with a diametrally enlarged outwardly opening cylindrical cup, a cylindrical cap having internal valve means removably mounted on said cup, a plurality of apertured flexible ears projecting outwardly from said cup, and radially projecting pin-like protuberances integrally formed on said cap for removably engaging the apertures in the earswhereby to hold the cap releasably in V .operative position on the cup.

References Cited in the file of this patent UNITED STATES PATENTS France May 18 1955 OTHER REFERENCES Moore: Plastic Trachestomy Button, J.A.M.A., Nov. 9, 1957, vol. #10, pages 1276-77. a

Claims (1)

1. A TRECHEOTOMY TUBE COMPRISING AN ANNULAR WAL DEFINING A DUCT, SAID TUBE BEING FORMED OF A SYNTHETIC RESIN AND BEING INTEGRALLY PROVIDED AT ONE END WITH AN ANNULAR RESILIENT FLANGE HAVING A SUFFICIENT DEGREE OF FLEXURE SO AS TO BE EASILYINSERTIBLE THROUGH THE ARTIFICAL PASSAGE SURGICALLY FORMED IN THE PATIENT''S NECK, SAID FLANGE BEING CONNECTED ENDWISE TO THE DUCT BY AN ANNULARLY REDUCED RESILIENT CONSTRUCTION WHICH IS THINNER THAN THE WALL-THICKNESS OF THE DUCT AND IS THEREBY READILY AND EASILY DEFORMED TO PERMIT INSERTION AND WHEN SO INSERTED, WILL SPRING BACK SO THAT THE FLANGE WILL BE IN SEATED ENGAGEMENT AGAINST THE INTERNAL SURFACE OF THE PATIENT''S TRACHEAL WALL, SAID ANNULAR WALL BEING OF SUFFICIENT LENGTH TO EXTEND THROUGH AND PROJECT BEYOND THE EXTERIOR OF THE PATIENT''S NECK AND VALVE MEANS OPERATIVELY MOUNTED ACROSS SAID PROJECTING END.
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Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216420A (en) * 1962-12-27 1965-11-09 Marvin E Claycomb Colostomy attachments
US3263684A (en) * 1962-02-26 1966-08-02 Robert L Bolton Tracheotomy tube with one-way valve
US3433227A (en) * 1965-10-25 1969-03-18 Edward L Kettenbach Surgical drains
US3585997A (en) * 1969-05-15 1971-06-22 Sigmund H Ancerewicz Jr Tracheostomy device
US3747127A (en) * 1971-11-01 1973-07-24 New York Medical College Voice prosthesis
US3827440A (en) * 1973-01-18 1974-08-06 A Birch Check-valve for tracheotomy tubes
US3844290A (en) * 1972-07-20 1974-10-29 A Birch Tracheotomy device
US3896816A (en) * 1971-05-03 1975-07-29 Martin Mattler Disposable catheter
US3973569A (en) * 1975-08-06 1976-08-10 National Catheter Corporation Tracheostomy tube device with neck size adjustment means
WO1980000307A1 (en) * 1978-08-10 1980-03-06 Smiths Industries Ltd Tracheal tubes
USRE30365E (en) * 1971-05-03 1980-08-12 Disposable catheter
US4269184A (en) * 1980-02-28 1981-05-26 Montgomery William W Silicone tracheal cannula
US4325366A (en) * 1980-07-07 1982-04-20 Tabor Carl J Valve and method for use with a tracheotomy tube
EP0078685A1 (en) * 1981-10-29 1983-05-11 Hansa Medical Products Inc. Apparatus for use in tracheotomy stoma
US4405305A (en) * 1980-10-27 1983-09-20 University Of Utah Research Foundation Subcutaneous peritoneal injection catheter
US4438768A (en) * 1981-09-23 1984-03-27 Barrickman Robert W Emergency cricothyroidotomy instrument
EP0112307A2 (en) * 1982-12-22 1984-06-27 Walter Cavalli A tracheal intubation cannula with external valve
US4538607A (en) * 1984-02-06 1985-09-03 Ab Fixfabriken Tracheostomy valve
US4557724A (en) * 1981-02-17 1985-12-10 University Of Utah Research Foundation Apparatus and methods for minimizing cellular adhesion on peritoneal injection catheters
US4559033A (en) * 1980-10-27 1985-12-17 University Of Utah Research Foundation Apparatus and methods for minimizing peritoneal injection catheter obstruction
WO1986005102A1 (en) * 1985-03-08 1986-09-12 Muir David A Tracheostomy device
US4649913A (en) * 1984-07-31 1987-03-17 Smiths Industries Public Limited Company Tracheostomy tube assemblies
US4802474A (en) * 1987-09-04 1989-02-07 Beevers Katherine K Protective cover for tracheotomy tube
US4877025A (en) * 1988-10-06 1989-10-31 Hanson Donald W Tracheostomy tube valve apparatus
US4911716A (en) * 1982-04-30 1990-03-27 Hansa Medical Products, Inc. Surgical implant for a voice prosthesis
US4971054A (en) * 1988-01-22 1990-11-20 Respaid Ab Breathing valve
US5048518A (en) * 1990-01-04 1991-09-17 Hood Laboratories Stoma stent system
US5054483A (en) * 1989-03-06 1991-10-08 Hood Laboratories Tracheal cannulas and stents
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
US5201309A (en) * 1990-11-22 1993-04-13 Gillis Andersson Breathing aid for laryngotomy tracheostomy patients
US5258027A (en) * 1991-01-24 1993-11-02 Willy Rusch Ag Trachreal prosthesis
US5392775A (en) * 1994-03-22 1995-02-28 Adkins, Jr.; Claude N. Duckbill valve for a tracheostomy tube that permits speech
US5445145A (en) * 1994-10-18 1995-08-29 Redmon; Robert A. Apparatus to manually open and close a shutter-like device for tracheostomy patients to facilitate breathing
US5464011A (en) * 1994-10-24 1995-11-07 Bridge; Robert S. Tracheostomy tube
US5683370A (en) * 1996-06-06 1997-11-04 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US5765560A (en) * 1991-12-16 1998-06-16 Adeva Medical, Gesellschaft Fur Entwicklung Und Vertrieb Von Medizinischen, Implantat-Artikeln Mbh Trachostoma valve and tissue connector and housing for use as a part thereof
US5950620A (en) * 1998-06-29 1999-09-14 Stricklin; Walter D. Resuscitation device for use with stomas
WO2000021599A1 (en) 1998-10-13 2000-04-20 Mallinckrodt Inc. Bi-functional in-line phonation valve
WO2000030708A1 (en) 1998-11-23 2000-06-02 Mallinckrodt Inc. Phonation valve for breathing tube
US20020156527A1 (en) * 1999-06-04 2002-10-24 Jan-Ove Persson Tracheostoma valve
US6668831B1 (en) 2001-02-20 2003-12-30 Michael E. Hegwood Appliance for a stoma
ES2232294A1 (en) * 2003-09-12 2005-05-16 Luis Blas Mompo Orti Phonatory prosthesis device for tracheostomized individuals, is provided with interior conduits, fixing projection parts and inner membrane i.e. check valve
US20050145252A1 (en) * 2004-01-07 2005-07-07 James Loyd Transtracheal oxygen stent
US6971382B1 (en) * 2004-05-24 2005-12-06 Albert M Corso Trachea tube method and device
US7021314B1 (en) * 2004-07-19 2006-04-04 Lane Charles J Stoma stent with integrated speech flap valve
US20060174893A1 (en) * 2005-02-07 2006-08-10 Arthur Kanowitz Complete airway stabilization system and method
EP1719535A1 (en) * 2005-05-02 2006-11-08 ISKIA GmbH & Co. KG Tracheostoma placeholder
US20060276893A1 (en) * 2005-06-06 2006-12-07 Nelson Jesse N Voice prosthesis device
US20080072912A1 (en) * 2005-03-09 2008-03-27 Scott S D Tracheostomy Appliances and Methods for the Treatment of Sleep Apnea Syndromes
WO2009003209A2 (en) * 2007-07-04 2009-01-08 Austrian Research Centers Gmbh - Arc Modular wound cover
US20090032028A1 (en) * 2007-07-30 2009-02-05 Bare Rex O Tracheostomy valves and related methods
US8800565B1 (en) * 2010-05-19 2014-08-12 David H. Root Breath intake valve for a tracheostomy tube
USD747463S1 (en) * 2007-07-30 2016-01-12 Passy-Muir, Inc. Tracheostomy valve
US9814853B2 (en) 2005-02-07 2017-11-14 Securisyn Medical, Llc Airway stabilization system

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US162598A (en) * 1875-04-27 Improvement in pump-valves
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GB190619196A (en) * 1906-08-28 1907-04-04 William Henry Beach Improvements in Tracheotomy Appliances.
US1633705A (en) * 1925-06-22 1927-06-28 Vocophone Company Breathing and vocal attachment
US2039142A (en) * 1934-12-21 1936-04-28 William F Brehm Tracheotomy tube
US2510766A (en) * 1947-12-06 1950-06-06 Carl F Surface Colostomy control device
FR1103165A (en) * 1954-06-25 1955-10-31 Device for the treatment of stenosis of the esophagus
US2765792A (en) * 1953-04-17 1956-10-09 Edgar B Nichols Tracheal devices
US2804076A (en) * 1955-10-03 1957-08-27 Giraudon Rene Surgical device for patients undergoing a laryngotomy
US3018790A (en) * 1956-06-18 1962-01-30 Garrett Corp Respiration apparatus
US3066674A (en) * 1961-01-09 1962-12-04 Robert P Capra Speech facilitating attachment for throat tube

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US162598A (en) * 1875-04-27 Improvement in pump-valves
GB190603895A (en) * 1906-02-16 1906-06-28 James Webb Improvements in the Construction of Trachea Tubes for use after the Operation of Tracheotomy on Animals.
GB190619196A (en) * 1906-08-28 1907-04-04 William Henry Beach Improvements in Tracheotomy Appliances.
US1633705A (en) * 1925-06-22 1927-06-28 Vocophone Company Breathing and vocal attachment
US2039142A (en) * 1934-12-21 1936-04-28 William F Brehm Tracheotomy tube
US2510766A (en) * 1947-12-06 1950-06-06 Carl F Surface Colostomy control device
US2765792A (en) * 1953-04-17 1956-10-09 Edgar B Nichols Tracheal devices
FR1103165A (en) * 1954-06-25 1955-10-31 Device for the treatment of stenosis of the esophagus
US2804076A (en) * 1955-10-03 1957-08-27 Giraudon Rene Surgical device for patients undergoing a laryngotomy
US3018790A (en) * 1956-06-18 1962-01-30 Garrett Corp Respiration apparatus
US3066674A (en) * 1961-01-09 1962-12-04 Robert P Capra Speech facilitating attachment for throat tube

Cited By (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263684A (en) * 1962-02-26 1966-08-02 Robert L Bolton Tracheotomy tube with one-way valve
US3216420A (en) * 1962-12-27 1965-11-09 Marvin E Claycomb Colostomy attachments
US3433227A (en) * 1965-10-25 1969-03-18 Edward L Kettenbach Surgical drains
US3585997A (en) * 1969-05-15 1971-06-22 Sigmund H Ancerewicz Jr Tracheostomy device
USRE30365E (en) * 1971-05-03 1980-08-12 Disposable catheter
US3896816A (en) * 1971-05-03 1975-07-29 Martin Mattler Disposable catheter
US3747127A (en) * 1971-11-01 1973-07-24 New York Medical College Voice prosthesis
US3844290A (en) * 1972-07-20 1974-10-29 A Birch Tracheotomy device
US3827440A (en) * 1973-01-18 1974-08-06 A Birch Check-valve for tracheotomy tubes
US3973569A (en) * 1975-08-06 1976-08-10 National Catheter Corporation Tracheostomy tube device with neck size adjustment means
WO1980000307A1 (en) * 1978-08-10 1980-03-06 Smiths Industries Ltd Tracheal tubes
US4269184A (en) * 1980-02-28 1981-05-26 Montgomery William W Silicone tracheal cannula
US4325366A (en) * 1980-07-07 1982-04-20 Tabor Carl J Valve and method for use with a tracheotomy tube
US4559033A (en) * 1980-10-27 1985-12-17 University Of Utah Research Foundation Apparatus and methods for minimizing peritoneal injection catheter obstruction
US4405305A (en) * 1980-10-27 1983-09-20 University Of Utah Research Foundation Subcutaneous peritoneal injection catheter
US4557724A (en) * 1981-02-17 1985-12-10 University Of Utah Research Foundation Apparatus and methods for minimizing cellular adhesion on peritoneal injection catheters
US4438768A (en) * 1981-09-23 1984-03-27 Barrickman Robert W Emergency cricothyroidotomy instrument
EP0078685A1 (en) * 1981-10-29 1983-05-11 Hansa Medical Products Inc. Apparatus for use in tracheotomy stoma
US7025784B1 (en) * 1981-10-29 2006-04-11 Hansa Medical Products, Inc. Method and apparatus for a tracheal valve
US4911716A (en) * 1982-04-30 1990-03-27 Hansa Medical Products, Inc. Surgical implant for a voice prosthesis
EP0112307A3 (en) * 1982-12-22 1985-04-10 Walter Cavalli A tracheal intubation cannula with external valve
JPS59135065A (en) * 1982-12-22 1984-08-03 Maruko Rangooni Trachea insert cannula equipped with external valve
EP0112307A2 (en) * 1982-12-22 1984-06-27 Walter Cavalli A tracheal intubation cannula with external valve
US4538607A (en) * 1984-02-06 1985-09-03 Ab Fixfabriken Tracheostomy valve
US4649913A (en) * 1984-07-31 1987-03-17 Smiths Industries Public Limited Company Tracheostomy tube assemblies
US4759356A (en) * 1985-03-08 1988-07-26 David Muir Tracheostomy device and related methods
JPS62502103A (en) * 1985-03-08 1987-08-20
WO1986005102A1 (en) * 1985-03-08 1986-09-12 Muir David A Tracheostomy device
US5107828A (en) * 1985-05-21 1992-04-28 Walter Koss Tracheostoma closure device
US4802474A (en) * 1987-09-04 1989-02-07 Beevers Katherine K Protective cover for tracheotomy tube
US4971054A (en) * 1988-01-22 1990-11-20 Respaid Ab Breathing valve
US4877025A (en) * 1988-10-06 1989-10-31 Hanson Donald W Tracheostomy tube valve apparatus
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
US5048518A (en) * 1990-01-04 1991-09-17 Hood Laboratories Stoma stent system
US5201309A (en) * 1990-11-22 1993-04-13 Gillis Andersson Breathing aid for laryngotomy tracheostomy patients
US5258027A (en) * 1991-01-24 1993-11-02 Willy Rusch Ag Trachreal prosthesis
US5765560A (en) * 1991-12-16 1998-06-16 Adeva Medical, Gesellschaft Fur Entwicklung Und Vertrieb Von Medizinischen, Implantat-Artikeln Mbh Trachostoma valve and tissue connector and housing for use as a part thereof
US5392775A (en) * 1994-03-22 1995-02-28 Adkins, Jr.; Claude N. Duckbill valve for a tracheostomy tube that permits speech
US5445145A (en) * 1994-10-18 1995-08-29 Redmon; Robert A. Apparatus to manually open and close a shutter-like device for tracheostomy patients to facilitate breathing
US5464011A (en) * 1994-10-24 1995-11-07 Bridge; Robert S. Tracheostomy tube
US5916208A (en) * 1996-06-06 1999-06-29 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US5957893A (en) * 1996-06-06 1999-09-28 Becton Dickinson & Co. Hard tip over-the needle catheter and method of manufacturing the same
US5683370A (en) * 1996-06-06 1997-11-04 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US5913848A (en) * 1996-06-06 1999-06-22 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US5950620A (en) * 1998-06-29 1999-09-14 Stricklin; Walter D. Resuscitation device for use with stomas
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US6386200B1 (en) 1998-10-13 2002-05-14 Mallinckrodt Inc. Bi-functional in-line phonation valve
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