US2862498A - Endotracheal tube - Google Patents

Endotracheal tube Download PDF

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Publication number
US2862498A
US2862498A US66573257A US2862498A US 2862498 A US2862498 A US 2862498A US 66573257 A US66573257 A US 66573257A US 2862498 A US2862498 A US 2862498A
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tube
end
endotracheal
catheter
curvature
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Don J Weekes
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Don J Weekes
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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
    • A61M16/0463Tracheal tubes combined with suction tubes, catheters or the like; Outside connections

Description

D. :1. WEEKES ENDOTRACHEAL TUBE Filed June 14, 1957 INVENTOR. 00/7 J Wee/ es PM (Lam A T TORN Y atent United States ENDOTRACHEAL TUBE 'Don J. Weekes, Brookline, Mass.

Application June 14, 1957, Serial No. 665,732 6 Claims. (Cl."128--'351) This invention relates to anendotracheal tube.

The invention has for an object tojprovide .a novel and improved endotracheal tube for administering general anesthesia'and which is characterizedby a novel distal "end portion designed to facilitate intubation and which is adapted to be-introduced into the larynx with minimum liability of injury or damage'to the. vocal chords.

Another object of the invention is to provide a novel and improved endotracheal tube of non-traumatic structure having a tip or leading end portion adapted to,flex when an obstruction is encountered during intubation whereby to prevent traumatic injury to the larynx.

A further object of the invention is to provide a novel and improved endotracheal tube of the character specified having a catheter tube associated therewith which is adapted to extend through and beyond the inner or distal end ofthe endotrachealtube.

With these general objects in -view and such others as may hereinafter appear, the invention consists in the endotracheal tube hereinafter described and particularly defined in the claims at the'end of this specification.

In the drawings illustrating the preferred embodiments of the invention:

Fig. l.is aside elevation of an endotracheal tube embodying thepresent invention;

Fig. 2 is an enlarged detail view of the novel'end portion;

Fig. 3 is a plan view of the same;

Fig. 4 is a cross; sectional view taken onithe line 4-4 Fig. 5' is across sectional view taken on the. line.55 of'Fig. 2;

Fig. 6 is-a front elevation of the novel end portion; and Fig. 7 is aplanview detail of a catheter tubeshown in Fig. 1. I

In general the present invention contemplates an endotracheal tube for administering general anesthesia and which is provided-with a novel distal end or tip structure of a shape such as to facilitate intubation and to" besubstantially'nomtraumatic and which is' particularly designed to enable it to pass through thelarynx with minimum. liability of injury to the vocal chords.

Prior endotracheal tubes of whichI am aware are provided with a relatively sharp curved end made by slicing or cutting the tube at an angle resulting in a relatively sharp leading edge portion. The tube material which may comprise rubber or plastic tubular material is supplied in coil form so that when unwound from the coil the tube is provided with a set curvature corresponding generally to the curvature the tube assumes during intubation either orally or intranasally. Such prior tubes were cut to form the distal end along an inclined plane either on the right or left hand side of the tube relative to the set curvature in accordance with the preference of the operator.

In accomplishing the usual intubation through a Flagg or other open laryngoscope it is often impossible to visualize the entire larynx, and only the posteriorof the -arytenoids are seen. As a result one of the problems associated with intubation when using such prior endotracheal tubes is the frequent occurrence of im- 5 proper intubation effecting traumatic injury to the larynx caused by the relatively sharp and rigid character of the distal end of such prior tubes. Other conditions which may occur as ,a resultof improper intubation are the development of granulomas and contact 'ulcers ofthe 10 larynx.

In accordance with the present invention the distal end of the endotracheal tube is tapered on two sides relative to the set curvature of the tube in plan elevation terminating in a solid vertically central transverse strut defining with the tapered sides two elliptical openings communicating with the interior or orifice of the tube. In side elevation theicentral strut follows an. inclined. plane from the upper side of the tube terminating at its lower portion vin'a relatively small straight extension with the lower surface coextensive with the underside of the tube and providing a flexible tip rounded at its leading end. Such relatively-small and flexible tip. extension is adapted to flex ormushroom to one side or the other when meeting with an obstruction during intubation whereby to prevent 5 traumatic injury to the larynx and touassist in properly guiding the tube into the trachea.

In practice a catheter tube isfalso usually employed with the endotracheal tube which .may be extended tthrough andibeyond the distal end of .theendotracheal tube. 'In order to facilitate passage of the catheter tube :through either the i left or right hand opening of the :endotracheal tube, the edge ofthe'transverse strut defin- ;ing the ends of the openings may bev tapered and rounded. The catheter tube is also made from coiled tubingwhich acquires a set curvature so "that when inserting the icatheter tube it may be initially extended at the set curvature conforming to the curvature of the endotracheal .tube. until it reaches the strutportionwhereupon slight rotation of the catheter tube will direct the same through 0 the right'or left hand opening as desired. A mark provided at the outer end of the. catheter tube aligned with the upper curved surface may be provided to indicate the. position of the inner end of the tube, and rotation of the tube to move the mark in one direction or the other willeifect passage of the tube through the opening desired.

.It will be understood that the outer end of the endotracheal tube will be operatively connected to an anesthesia machine, and the outer end of the catheter Ltube may beoperatively connected to a conventional suction device in the usual manner.

Referring now to the drawings, 10 indicates the present .endotracheal tube which may comprise a suitable plastic tubular material, such as vinyl plastic, or a-natural or synthetic rubber of suitable diameter which diameter may vary in accordance with the size and age of the-patient aupon which it is to be used. The tube- -1G,as illustrated, is provided with a set curvature, the upper surface of the tube relative to the set curvature being indicated at 12 and the lower surface at 14. The novel distal end indicated 0 generally at 16 may be molded to provide a tapering end portion defined by tapered surfaces on two opposed sides 18, 20 relative to the set curvature to provide an opening 22, 24 on each side of the tube, the tapered end terminating in a transverse inclined central strut 26 defining the 5 forward ends of the openings 22, 24. As illustrated in Fig. 2, the inclined surface 28 of the transverse strut 26 is disposed a short distance forwardly of the side openings defined thereby and extends from the upper surface 12 of the tube forwardly and downwardly terminating at 7 its lower end in a relatively small straight tip or leading end portion 30 extending parallel to the tube, the underside of the tip 30 being coextensive with the lower surface.

3 14 of the tube 10. The inclined surface 28 may and preferably will be rounded to provide a smooth edge, and the tip portion 39 may also be rounded at the leading end and along its longitudinal edges. I p

The novel distal end portion 16 thus constructed'is designed to thread its way between the vocal chords even though they are not visualized during intubation, and the relatively small and substantially cylindrical leading tip portion 30 is adapted to flex to one side or the other if more than the usual resistance is encountered whereby to avoid traumatic injury to the vocal chords and to guide the tip through the larynx and into the trachea, the tube assuming a substantially medial position therein. As indicated, the edges of the openings 22, 24 may be rounded to provide smooth edge surfaces. The .openings 22, 24 may be of any suitable length, preferably about one and one-half to two times the inside diameter of the tube, and the width of the openings may be substantially equal to the inside diameter of the tube as shown.

As indicated in Figs. 1 and 4, a catheter tube 32, also having a set curvature, is usually employed with an endotracheal tube and is extended through and beyond the distal end 16 for the purpose of removing excess mucus, and in practice the inner end of the catheter tube is normally extended and directed into one or the other of the bronchial tubes disposed to the left or to the right of the trachea. In order to facilitate passage of the end of the catheter tube 32 through one or the other of the openings 22, 24 of the endotracheal tube, the inner edge 34 of the strut which defines the forward edges of the openings 22, 24 is preferably rounded and tapered, as shown, to serve as a guide for the catheter tube in a direction to enter the left or right hand bronchial tube. The slight set curvature of the catheter tube facilitates passage of the inner end of the tube in the direction desired by merely applying a slight twisting rotation to the outer end of the tube. Thus, rotation of the outer end in a clockwise direction will divert the inner end through the left hand opening 22, and conversely, rotation in a counterclockwise direction will divert the inner end through the right hand opening 24. A mark 36 placed at the outer end'of the catheter tube in longitudinal alignment with the upper surface of the tube relative to its set curvature, as shown in Fig. 7, may serve as an indicator to show the position of the inner end of the tube so that the catheter tube may be rotated in the direction desired.

While the preferred embodiment of the invention has been herein illustrated and described, it will be understood that the invention may be embodied in other forms within the scope of the following claims.

Having thus described the invention, what is claimed is:

1. An endotracheal tube comprising an elongated tube having a distal end tapered on two opposed sides and terminating in a transverse strut, openings in said tapered sides communicating with the tube, said strut having a forwardly and downwardly inclined surface terminating in a relatively small and substantially straight tip por- 'curved surface of said catheter tube to serve as a guide tion adapted to flex when more than is encountered'during intubation.

2. An endotracheal tube comprising an elongated tube having a distal end tapered on two opposed sides and terminating in a central transverse strut, openings in said tapered sides communicating with the tube, said strut defining the forward ends of said openings, the leading portion of said strut having a forwardly and downwardly inclined surface terminating in a relatively small flexible extension.

3. An endotracheal tube comprising an elongated flexible tube having a set curvature and provided with a distal end tapered on two opposed sides relative to said curvature and terminating in a central transverse strut, openings in said tapered sides communicating with the tube, said strut defining the forward ends of said openings, the leading portion of said strut having a forwardly and downwardly inclined surface relative to the upper and lower tube surfaces of said set curvature and termin ating in a relatively small flexible extension coextensive with said lower tube surface.

4. An endotracheal tube as defined in claim 3 wherein the surfaces of said central strut defining the forward ends of said openings are rounded and tapered to facilitate passage of a catheter tube therethrough.

5. An endotracheal tube comprising an elongated flexible tube having a set curvature and provided with a distal end tapered on two opposed sides relative to said curvature and terminating in a central transverse strut, openings in said tapered sides communicating with the the usual resistance tube, said strut defining the forward ends of said open-' ings, the leading portion of said strut having a forwardly and downwardly inclined surface relative to the upper and lower tube surfaces of said set curvature and terminating in a relatively small flexible extension coextensive with said lower tube surface, and a catheter tube inserted within the endotracheal tube, said catheter tube also having a set curvature corresponding to the curvature of the endotracheal tube, and a mark on the outer end of said catheter tube aligned longitudinally with the upper for rotating said catheter tube in a direction to effect passage of the same through the distal opening desired, the inner surface of said central strut defining the forward ends of said openings'being rounded and tapered to facilitate passage of the catheter tube through the opening desired.

6. An endotracheal tube comprising an elongated tube having a distal end tapered on two opposed sides in plan elevation and terminating in a relatively narrow central strut, openings in said opposed sides communicating with the tube, said strut having a forwardly and downwardly inclined surface in side elevation terminating in a relatively small flexible extension.

References Cited in the file of this patent UNITED STATES PATENTS 2,458,305 Sanders Jan. 4, 1949 FOREIGN PATENTS 855,318 Germany Nov. 13, 1952

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Cited By (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284567B (en) * 1963-04-17 1968-12-05 Schossow Luftroehrenkatheter
US3631848A (en) * 1968-09-04 1972-01-04 Us Catheter & Instr Corp Extensible catheter
US3799173A (en) * 1972-03-24 1974-03-26 J Kamen Tracheal tubes
US4351328A (en) * 1980-03-27 1982-09-28 Sontek Industries, Inc. Simultaneous respiration and endotracheal suctioning of a critically ill patient
FR2504012A1 (en) * 1981-04-15 1982-10-22 Kruger Christian medical instrument
US4449526A (en) * 1981-11-27 1984-05-22 Elam James O Mask breathing system
US4680029A (en) * 1984-02-23 1987-07-14 Sherwood Medical Company Vena caval catheter
WO1988001203A1 (en) 1986-08-15 1988-02-25 Castolin S.A. Flame burner for processing of powder-like or wire-like spray material
WO1988006903A1 (en) * 1987-03-17 1988-09-22 Nakhgevany Karim B Endotracheal tube
US4819619A (en) * 1987-01-16 1989-04-11 Augustine Scott D Device for inserting a nasal tube
US4850371A (en) * 1988-06-13 1989-07-25 Broadhurst John H Novel endotracheal tube and mass spectrometer
US4909248A (en) * 1988-01-09 1990-03-20 Smiths Industries Public Limited Company Tracheal tube fittings and assemblies
US4987895A (en) * 1986-10-06 1991-01-29 Heimlich Henry J Tracheal tube
US5044369A (en) * 1989-01-23 1991-09-03 Harvinder Sahota Bent topless catheters
US5058577A (en) * 1989-05-09 1991-10-22 Gary Six Flexible tip stylet for use with an endotracheal intubation device
WO1993011819A1 (en) * 1991-12-12 1993-06-24 Schermerhorn Jeffrey W Apparatus and method for endotracheal intubation
US5235970A (en) * 1990-03-26 1993-08-17 Augustine Medical, Inc. Tracheal intubation with a stylet guide
US5291882A (en) * 1992-05-11 1994-03-08 Makhoul Imad R Multi-lumen ITPV endotracheal tube
WO1995001199A1 (en) * 1993-07-01 1995-01-12 Mallinckrodt Medical, Inc. Endotracheal tube with aerosol split and delivered through murphy eye
US5507279A (en) * 1993-11-30 1996-04-16 Fortune; John B. Retrograde endotracheal intubation kit
US5616137A (en) * 1995-02-22 1997-04-01 Minnesota Mining And Manufacturing Company Low velocity aortic cannula
US5643226A (en) * 1993-02-24 1997-07-01 Minnesota Mining And Manufacturing Low velocity aortic cannula
US5685865A (en) * 1993-02-24 1997-11-11 Minnesota Mining And Manufacturing Company Low velocity aortic cannula
US5873362A (en) * 1997-03-18 1999-02-23 Parker Medical Limited Partnership Endotracheal tube
US6055984A (en) * 1996-11-06 2000-05-02 Brain; Archibald I. J. Endotracheal tube construction
US20010003795A1 (en) * 1997-07-22 2001-06-14 Mitta Suresh Catheter system and method for posterior epicardial revascularization and intracardiac surgery on a beating heart
US20020066450A1 (en) * 2000-12-02 2002-06-06 Bonutti Peter M. Tracheal intubination
US6439232B1 (en) 1998-08-13 2002-08-27 Archibald Ian Jeremy Brain Laryngeal mask airway device
US6463927B1 (en) * 1997-03-27 2002-10-15 Smiths Group Plc Medical tube assemblies
EP1249251A1 (en) * 2001-04-12 2002-10-16 Willy Rüsch GmbH Inspiratory tube
US6575158B1 (en) * 1997-06-03 2003-06-10 The Board Of Regents Of The University Of Texas System Endotracheal tube guide and related tracheostomy surgical procedure
US20030185879A1 (en) * 1999-11-05 2003-10-02 Teni Boulikas Therapy for human cancers using cisplatin and other drugs or genes encapsulated into liposomes
US20030183234A1 (en) * 2002-03-26 2003-10-02 Gisbert Ranzinger Resuscitation tube
US6651665B1 (en) * 2002-02-19 2003-11-25 Ibionics, Inc. Rotating magnetic guide intubation system
US6701918B2 (en) * 2002-02-19 2004-03-09 Ibionics Corporation Magnetically guided device for insertion through a nasal passageway
US6705318B1 (en) 1999-04-09 2004-03-16 Archibald I. J. Brain Disposable LMA
US20040060564A1 (en) * 1997-07-25 2004-04-01 Lma International Sa Intubating laryngeal mask
US6715491B2 (en) * 2002-02-19 2004-04-06 Ibionics Corporation Magnetically orienting laryngeal elevator blade
US20040139971A1 (en) * 2003-01-22 2004-07-22 Brain Archibald I. J. Laryngeal mask airway device with airway tube having flattened outer circumference and elliptical inner airway passage
US20050051173A1 (en) * 2003-09-08 2005-03-10 Brain Archibald I. J. Laryngeal mask airway device with position controlling tab
US20050051175A1 (en) * 2003-09-10 2005-03-10 Brain Archibald I. J. Intubating laryngeal mask airway device with fiber optic assembly
US20050066975A1 (en) * 1999-10-07 2005-03-31 Brain Archibald I.J. Laryngeal mask with large-bore gastric drainage
US7156100B1 (en) 1998-10-06 2007-01-02 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US7159589B2 (en) 2001-08-23 2007-01-09 Indian Ocean Medical Inc. Disposable laryngeal mask airway device
US20070219466A1 (en) * 2006-01-06 2007-09-20 Tremulis W S Atraumatic Catheter Tip
US7273053B2 (en) 1997-12-24 2007-09-25 Mario Zocca Monitoring and control for a laryngeal mask airway device
USRE39938E1 (en) 1996-03-01 2007-12-18 Indian Ocean Medical, Inc. Gastro-laryngeal mask
US7331346B2 (en) 1997-12-24 2008-02-19 Indian Ocean Medical, Inc. Monitoring and control for a laryngeal mask airway device
US20110027334A1 (en) * 2009-07-29 2011-02-03 Nellcor Puritan Bennett Llc Multilayer medical devices having an encapsulated edge and methods thereof
US8783256B2 (en) 2005-05-27 2014-07-22 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US8864791B2 (en) 2011-04-08 2014-10-21 John R. Roberts Catheter systems and methods of use
US9061117B2 (en) 2011-04-08 2015-06-23 John R. Roberts Catheter systems and methods of use
US9149592B2 (en) 2013-03-14 2015-10-06 Patient Centered Medical Incorporated Aspiration catheters, systems, and methods
US9265904B2 (en) 2009-07-06 2016-02-23 Teleflex Life Sciences Artificial airway
US9528897B2 (en) 2009-08-13 2016-12-27 Chimden Medical Pty Ltd Pressure indicator
US9675772B2 (en) 2010-10-15 2017-06-13 The Laryngeal Mask Company Limited Artificial airway device
US9974912B2 (en) 2010-10-01 2018-05-22 Teleflex Life Sciences Unlimited Company Artificial airway device

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Patent Citations (2)

* Cited by examiner, † Cited by third party
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US2458305A (en) * 1947-04-26 1949-01-04 Richard D Sanders Tubular article comprising rubberlike material

Cited By (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284567B (en) * 1963-04-17 1968-12-05 Schossow Luftroehrenkatheter
US3631848A (en) * 1968-09-04 1972-01-04 Us Catheter & Instr Corp Extensible catheter
US3799173A (en) * 1972-03-24 1974-03-26 J Kamen Tracheal tubes
US4351328A (en) * 1980-03-27 1982-09-28 Sontek Industries, Inc. Simultaneous respiration and endotracheal suctioning of a critically ill patient
US4454887A (en) * 1981-04-15 1984-06-19 Krueger Christian Medical instruments for introduction into the respiratory tract of a patient
FR2504012A1 (en) * 1981-04-15 1982-10-22 Kruger Christian medical instrument
US4449526A (en) * 1981-11-27 1984-05-22 Elam James O Mask breathing system
US4680029A (en) * 1984-02-23 1987-07-14 Sherwood Medical Company Vena caval catheter
WO1988001203A1 (en) 1986-08-15 1988-02-25 Castolin S.A. Flame burner for processing of powder-like or wire-like spray material
US4987895A (en) * 1986-10-06 1991-01-29 Heimlich Henry J Tracheal tube
US4819619A (en) * 1987-01-16 1989-04-11 Augustine Scott D Device for inserting a nasal tube
WO1988006903A1 (en) * 1987-03-17 1988-09-22 Nakhgevany Karim B Endotracheal tube
US4892095A (en) * 1987-03-17 1990-01-09 Nakhgevany Karim B Endotracheal tube
US4909248A (en) * 1988-01-09 1990-03-20 Smiths Industries Public Limited Company Tracheal tube fittings and assemblies
US4850371A (en) * 1988-06-13 1989-07-25 Broadhurst John H Novel endotracheal tube and mass spectrometer
US5044369A (en) * 1989-01-23 1991-09-03 Harvinder Sahota Bent topless catheters
US5058577A (en) * 1989-05-09 1991-10-22 Gary Six Flexible tip stylet for use with an endotracheal intubation device
USRE35595E (en) * 1989-05-09 1997-08-26 Six; Gary Flexible tip stylet for use with an endotracheal intubation device
US5235970A (en) * 1990-03-26 1993-08-17 Augustine Medical, Inc. Tracheal intubation with a stylet guide
WO1993011819A1 (en) * 1991-12-12 1993-06-24 Schermerhorn Jeffrey W Apparatus and method for endotracheal intubation
US5257620A (en) * 1991-12-12 1993-11-02 Schermerhorn Jeffrey W Apparatus and method for endotracheal intubation
US5291882A (en) * 1992-05-11 1994-03-08 Makhoul Imad R Multi-lumen ITPV endotracheal tube
US5685865A (en) * 1993-02-24 1997-11-11 Minnesota Mining And Manufacturing Company Low velocity aortic cannula
US5643226A (en) * 1993-02-24 1997-07-01 Minnesota Mining And Manufacturing Low velocity aortic cannula
WO1995001199A1 (en) * 1993-07-01 1995-01-12 Mallinckrodt Medical, Inc. Endotracheal tube with aerosol split and delivered through murphy eye
US5507279A (en) * 1993-11-30 1996-04-16 Fortune; John B. Retrograde endotracheal intubation kit
US5616137A (en) * 1995-02-22 1997-04-01 Minnesota Mining And Manufacturing Company Low velocity aortic cannula
USRE39938E1 (en) 1996-03-01 2007-12-18 Indian Ocean Medical, Inc. Gastro-laryngeal mask
US6055984A (en) * 1996-11-06 2000-05-02 Brain; Archibald I. J. Endotracheal tube construction
US6698428B2 (en) * 1996-11-06 2004-03-02 Archibald I. J. Brain Endotracheal tube construction
US5873362A (en) * 1997-03-18 1999-02-23 Parker Medical Limited Partnership Endotracheal tube
US6463927B1 (en) * 1997-03-27 2002-10-15 Smiths Group Plc Medical tube assemblies
US6575158B1 (en) * 1997-06-03 2003-06-10 The Board Of Regents Of The University Of Texas System Endotracheal tube guide and related tracheostomy surgical procedure
US20010003795A1 (en) * 1997-07-22 2001-06-14 Mitta Suresh Catheter system and method for posterior epicardial revascularization and intracardiac surgery on a beating heart
US20040060564A1 (en) * 1997-07-25 2004-04-01 Lma International Sa Intubating laryngeal mask
US6918388B2 (en) 1997-07-25 2005-07-19 The Laryngeal Mask Company Limited Intubating laryngeal mask
US7331346B2 (en) 1997-12-24 2008-02-19 Indian Ocean Medical, Inc. Monitoring and control for a laryngeal mask airway device
US7273053B2 (en) 1997-12-24 2007-09-25 Mario Zocca Monitoring and control for a laryngeal mask airway device
US20080060655A1 (en) * 1998-08-13 2008-03-13 Lma International Laryngeal mask airway device
US20030051734A1 (en) * 1998-08-13 2003-03-20 Brain Archibald Ian Jeremy Laryngeal mask airway device
US6439232B1 (en) 1998-08-13 2002-08-27 Archibald Ian Jeremy Brain Laryngeal mask airway device
US9694150B2 (en) 1998-08-13 2017-07-04 The Laryngeal Mask Company Limited Laryngeal mask airway device
US7305985B2 (en) 1998-08-13 2007-12-11 The Laryngeal Mask Company Limited Laryngeal mask airway device
US7493901B2 (en) 1998-10-06 2009-02-24 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US7506648B2 (en) 1998-10-06 2009-03-24 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US7156100B1 (en) 1998-10-06 2007-01-02 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US7097802B2 (en) 1999-04-09 2006-08-29 Indian Ocean Medical Inc. Disposable LMA
US6705318B1 (en) 1999-04-09 2004-03-16 Archibald I. J. Brain Disposable LMA
US20040187872A1 (en) * 1999-04-09 2004-09-30 Brain Archibald I. J. Disposable LMA
US7004169B2 (en) 1999-10-07 2006-02-28 Indian Ocean Medical Inc. Laryngeal mask with large-bore gastric drainage
US20050066975A1 (en) * 1999-10-07 2005-03-31 Brain Archibald I.J. Laryngeal mask with large-bore gastric drainage
US20030185879A1 (en) * 1999-11-05 2003-10-02 Teni Boulikas Therapy for human cancers using cisplatin and other drugs or genes encapsulated into liposomes
US20050103333A1 (en) * 2000-12-02 2005-05-19 Bonutti Peter M. Medical device positioning system and method
US20050103334A1 (en) * 2000-12-02 2005-05-19 Bonutti Peter M. Medicant delivery system and method
US20020066450A1 (en) * 2000-12-02 2002-06-06 Bonutti Peter M. Tracheal intubination
US7320319B2 (en) 2000-12-02 2008-01-22 Marctec, Llc Medicant delivery system and method
US6820614B2 (en) * 2000-12-02 2004-11-23 The Bonutti 2003 Trust -A Tracheal intubination
US20090216066A1 (en) * 2000-12-02 2009-08-27 Bonutti Peter M Magnetically assisted medication delivery method
US20110224539A1 (en) * 2000-12-02 2011-09-15 Bonutti Peter M Methods for positioning an ultrasonic catheter
EP1249251A1 (en) * 2001-04-12 2002-10-16 Willy Rüsch GmbH Inspiratory tube
US7159589B2 (en) 2001-08-23 2007-01-09 Indian Ocean Medical Inc. Disposable laryngeal mask airway device
US20070102001A1 (en) * 2001-08-23 2007-05-10 Indian Ocean Medical Inc. Disposable laryngeal mask airway device
US6715491B2 (en) * 2002-02-19 2004-04-06 Ibionics Corporation Magnetically orienting laryngeal elevator blade
US6651665B1 (en) * 2002-02-19 2003-11-25 Ibionics, Inc. Rotating magnetic guide intubation system
US6701918B2 (en) * 2002-02-19 2004-03-09 Ibionics Corporation Magnetically guided device for insertion through a nasal passageway
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