US3826248A - Laryngoscope - Google Patents

Laryngoscope Download PDF

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Publication number
US3826248A
US3826248A US00290572A US29057272A US3826248A US 3826248 A US3826248 A US 3826248A US 00290572 A US00290572 A US 00290572A US 29057272 A US29057272 A US 29057272A US 3826248 A US3826248 A US 3826248A
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United States
Prior art keywords
spatula
laryngoscope
bulb
handle
end portion
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 - Lifetime
Application number
US00290572A
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English (en)
Inventor
G Gobels
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Individual
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Individual
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Publication of US3826248A publication Critical patent/US3826248A/en
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Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/267—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the respiratory tract, e.g. laryngoscopes, bronchoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00105—Constructional details of the endoscope body characterised by modular construction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0661—Endoscope light sources
    • A61B1/0676—Endoscope light sources at distal tip of an endoscope

Definitions

  • Laryngoscopes serve to keep free the oral cavity and the glottis by introducing the spatula into the mouth and by advancing the spatula front end into the throat gap.
  • a tongue deflector or depressor presses the tongue aside so that the oral and throat cavities are unobstructed.
  • the handle is fitted with an illuminating device permitting it to illuminate the throat cavity by means of a bulb.
  • Such laryngoscopes are subjected to opposing conditions, namely, on the one hand are medical requirements relating to sterilization, life and safety, whereas on the other hand are the mechanical and electrical requirements relating to efficiency of performance and the like.
  • the handle with the light source is destined for a plurality of applications, thus increasing the possibility for deficiencies and interferences concerning the illumination system. If during the treatment, the light source fails and the illumination collapses, valuable time may be lost during which medical help cannot take place, and, in particular in cases of emergency, e.g., for accidents, the rescue of the patient might be defeated.
  • the fixture of the bulb and the control of its seat is still aggravated by the spatula sheath.
  • the handle and the spatula as one single piece of the laryngoscope and to only provide interchangeability of the illuminating device together with the bulb. The reason for this is to realize an apparatus of a reasonable price which can be thrown away after one single use in order to do-away, with repeated sterilizations of the apparatus.
  • the disadvantage connected therewith is that the'entire implement, viz. the handle and the spatula shall be thrown away after one single use, and this is relatively expensive.
  • the bulb insertable into the handle is always intended for multiple uses. Hence, it may happen that the illumination unexpectedly fails thus resulting in the disadvantages described above.
  • the pressure exerted by the teeth on the spatula of the laryngoscope is sometimes as high as to cause scratches and notches on the metal surface of the rigid spatula, unless the tooth broke off or became loose in the jaw.
  • the handle incorporating the illumination system and the spatula a light
  • the invention is characterized in that the spatula has at the rear of its tonguedeflector-side element an insert of elastic material and a bulb with light or current supply fixed in the spatula undemountably, the spatula with insert and bulb being provided as a disposable article.
  • the laryngoscope or the spatula thereof By such a design of the laryngoscope or the spatula thereof there is obtained the best possible safety for its operating efficiency with respect to all the requirements to be demanded from the laryngoscope. All the sources of trouble which probably might become'effective are in the one-way single use, or disposable part which consists only of the spatula, so that the expendi ture for obtaining the optimum is held at a minimum.
  • the elastic insert in the tongue-deflector side part of the spatula permits an ongoing and safe manipulation of the laryngoscope without the risk of breaking out teeth of the patient even in case of a rudimentary operation of the laryngoscope.
  • the bulb being provided in the one way part entails the essential advantage that it is used only once. The risk of a failure of the bulb during the work with the laryngoscope is practically eliminated. A failure of the illumination due to a decrepit bulb is excluded. Added thereto isthe direct, firm arrangement of the bulb in the one-way part so that defective contacts and other. interruptions of current are completely excluded. Hence, avoided is the patient suffering damage due to a failure of the illumination.
  • the elastic insert in the spatula may be constructed from rubber, plastic or the like. It should be suitably anchored in the lateral part of the spatula by means of undercut grooves extending in cross and longitudinal directions relative to each other.
  • the rejectable spatula may be of any convenient material. It is advantageous to use plastic, whereby the rigidity of the spatula is guaranteed.
  • the spatula must have a mat or darkcolored surface to avoid reflections resulting from the illumination.
  • a light conductor e.g. a glass fiber line or the like, or a prismatic piece, may lead to the front part of the spatula. It is also possible to fit the bulb at the front part of the spatula and to 7 connect it by a current, line with the contact points of the spatula foot.
  • the spatula itself is preferably fitted with a bent foot member thus facilitating the provision of the bulb in the spatula.
  • Coupling of the bent foot member with the handle is accomplished by a sliding connection in cross direction relative to the spatula foot.
  • the spatula foot with its socket rail may engage in an undercut groove of the handle.
  • the socket rail and the groove of the handle cooperate electrically by means of a contact tongue and contact pin. It is suitable to provide a taper i.e. a narrowing design of the socket rail and the undercut groove so that a firm seat is insured when the parts are pushed together.
  • FIG. 1 is an axial sectional view of the first embodiment of the laryngoscope of this invention, and illustrates an insert of elastic material carried by spatula.
  • FIG. 2 is a top plan view of the laryngoscope spatula and illustrates an open longitudinal canal for the elastic insert.
  • FIGS. 3 and 4 are cross sectional and top plane views, respectively, and illustrate coupling unit between handle and spatula.
  • FIG. 5 is an axial sectional view of a further embodiment of another laryngoscope according to the invention and illustrates a bulb directly housed in the spatula foot.
  • FIG. 6 is a top plan view of the spatula of the laryngoscope of FIG. 5.
  • the laryngo scope of FIGS. 1 to 4 has a handle 18 and a spatula 6, the spatula being provided with a longitudinally extending main body 1 with a first'end portion la thereof serving as a tongue deflector.
  • the main body 1 4 of the spatula 6 contains an insert 3 of elastic material, e.g. of rubber, plastic or the like. This insert 3 is in the rear part or second end portion 1b of the spatula and serves for the elastic reception of the patients teeth when the spatula 6 with insert 3 rests against the teeth upon use of the laryngoscope.
  • Insert 3 includes a surface 3b which forms a continuation of and merges with an uppermost surface 1c of the first end portion la.
  • Anchorage of the elastic insert 3 is conveniently carried out in a longitudinal canal 4 with undercut front surfaces 4a and by means of an undercut cross groove 23 in cheeks 22, 22.
  • a bulb 2 is located undemountably near the front end, and it is preferably soldered in place.
  • Current supply lines 10, 11 extend in the canal 4 and in a bent foot member 7 to a socket rail 9 housing contact pieces 12 and 13.
  • a contact tongue or switch 8 is provided in the socket rail 9 for making and breaking contact between the contact piece 12 and a contact pin 16.
  • a handle 18 receives one or more insertable electric energy cells (flashlight batteries) 17.
  • a spatula holder 14 screwed in place in which is resiliently supported the contact pin 16 insulated with respect to the surrounding wall.
  • Contact piece 13 is designed as a contact rail extending transversely relative to the longitudinal axis of the main body 1 with free ends of the rail resting firmly against the guide surfaces 15 of holder 14.
  • Contact piece 13 may be also constructed as a spring contact supporting itself against the bottom of groove 21.
  • the lower end of the handle 18 is closed by a detachable cap 19 which carries the support spring 20 for the cells 17.
  • the groove 21 is designed to slidably receive the rail 9 when the latter is progressively slid into the groove 21 from left-to-right as viewed in FIGS. 1 and 4.
  • the guide surfaceslS, l5 converge from left-to-right in FIG. 4,
  • the rail 9 will reach a point where its surface configuration matches that of the groove 21 resulting in a binding therebetween.
  • the guide surfaces 15, 15 additionally converge in an upward direction away from the bottom of the groove 21.
  • the spatula 6 and the spatula foot 7 with the socket rail 9 consist advantageously of black-colored plastic or the like with all the surfaces being mat. Black coloring has proven its quality as a contrast surface against the red mucosa of mouth and throat for the illuminating operation.
  • the elastic insert 3 may be fitted laterally with a slight bulge 3a (FIG. 2) as an additional protection for a persons lips.
  • the spatula 6 as a one-way piece is also fitted with an insert 3' of elastic material and anchored in the same way.
  • the bulb 2' is however in the foot 7 and firmly fitted in a socket 24, e.g. soldered, which, at the same time serves as a contact for the counter-contact 16' in handle part 18.
  • the spatula 6' is capable of being coupled with the handle 18' by means of thread 25. It is also possible to combine the elements by means of a bayonet connection. From light 2' a light conductor 26 leads to the front part of spatula 6 so that a good illumination of the rear throat cavity or. the like is insured.
  • spatula 6' with all elements arranged therein, in particular with the elastic insert 3 and the firmly fitted lamp 2 as well as the light conductor 26, form a one-way unit insuring high functional efficiencyv While preferred forms and arrangements of parts a have been shown in illustrating the invention, it is to be clearly understood that various changes in details and arrangement of parts may be made without departing from the spirit and scope of this disclosure.
  • a laryngoscope comprising a handle and a spatula, said spatula having a longitudinally extending main body which in turn has first and second opposite end portions, the first of said end portions being contoured to serve as a tongue deflector, said first end portion including an uppermost curved surface in use, a recess in said main body adjacent said second end portion, an
  • a bulb carried by said main body to illuminate the larynx cavity or the like
  • said handle including power means for illuminating said bulb, means for electrically detachably coupling said power means and bulb, means for mechanically detachably coupling said handle and spatula, and said mechanically and electrically detachable coupling means functioning to permit said spatula and bulb to operate as a single-use unit whereby upon one use of said laryngoscope said spatula and bulb may be discarded and replaced by a like though unused structure.
  • the laryngoscope as defined in claim 1 wherein the bulb is fitted in the first end portion of the spatula and is connected via a conduit with contact point of a spatula foot.
  • spatula foot has a socket rail engageable in an undercut groove of the handle, the socket rail and the undercut groove being chamfered, and the socket rail and the handle groove coact electrically by means of a contact tongue and a contact pin.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Otolaryngology (AREA)
  • Physiology (AREA)
  • Pulmonology (AREA)
  • Endoscopes (AREA)
US00290572A 1971-09-21 1972-09-20 Laryngoscope Expired - Lifetime US3826248A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2147054A DE2147054C3 (de) 1971-09-21 1971-09-21 Laryngoskop mit an Batteriegriff ankuppelbarem Kunststoffspatel mit Lampe

Publications (1)

Publication Number Publication Date
US3826248A true US3826248A (en) 1974-07-30

Family

ID=5820147

Family Applications (1)

Application Number Title Priority Date Filing Date
US00290572A Expired - Lifetime US3826248A (en) 1971-09-21 1972-09-20 Laryngoscope

Country Status (12)

Country Link
US (1) US3826248A (instruction)
JP (1) JPS5620013B2 (instruction)
AT (1) AT342184B (instruction)
BE (1) BE789022A (instruction)
CA (1) CA1011203A (instruction)
CH (1) CH545623A (instruction)
DE (1) DE2147054C3 (instruction)
FR (1) FR2154159A5 (instruction)
GB (1) GB1402102A (instruction)
HK (1) HK14376A (instruction)
IT (1) IT967660B (instruction)
NL (1) NL7212766A (instruction)

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037588A (en) * 1975-09-11 1977-07-26 Richard Wolf Gmbh Laryngoscopes
EP0030014A1 (en) * 1979-11-28 1981-06-10 Michael S. Upsher A combination of a laryngoscope and a flexible tube
US4295465A (en) * 1980-04-03 1981-10-20 N.A.D., Inc. Laryngoscope blade
WO1983001373A1 (en) * 1981-10-16 1983-04-28 Upsher, Michael, S. A laryngoscope including a separate disposable blade and its methode of use
EP0110333A3 (en) * 1979-11-28 1984-10-24 Michael S. Upsher Improved laryngoscope
US4557256A (en) * 1984-07-23 1985-12-10 Jack Bauman Examination device with an improved blade connection
US4570614A (en) * 1983-05-06 1986-02-18 Jack Bauman Laryngoscope with disposable blade and light conductor
US4573451A (en) * 1984-11-08 1986-03-04 Jack Bauman Laryngoscope blade with a bendable tip
US4579108A (en) * 1983-03-07 1986-04-01 Jack Bauman Laryngoscope blade and disposable cover
US4583528A (en) * 1984-11-08 1986-04-22 Jack Bauman Examining device with improved optical coupling between the light source and light conductor
US4607623A (en) * 1984-11-08 1986-08-26 Jack Bauman Unitary insert support frame for the handle of an examining device
US4669449A (en) * 1986-02-18 1987-06-02 Jack Bauman Submergible laryngoscope metallic housing for fiber optics power source
US4679547A (en) * 1986-02-19 1987-07-14 Jack Bauman Fluid submersible laryngoscope
US4694822A (en) * 1986-04-01 1987-09-22 Jack Bauman Submergible laryngoscope battery housing
USD297363S (en) 1985-07-08 1988-08-23 Albert Salerno Laryngoscope blade
US4924855A (en) * 1988-07-25 1990-05-15 Albert Salerno Laryngoscope blade
US4947896A (en) * 1988-11-04 1990-08-14 Bartlett Robert L Laryngoscope
US4958624A (en) * 1989-03-31 1990-09-25 Welch Allyn, Inc. Interchangeable laryngeal blade
US5060633A (en) * 1990-08-31 1991-10-29 Gibson Michael S Laryngoscope blade
US5178131A (en) * 1991-04-30 1993-01-12 Upsher Laryngoscope Corporation Waterproofed laryngoscope handle
DE9313009U1 (de) * 1993-08-30 1993-11-04 Heine Optotechnik GmbH & Co KG, 82211 Herrsching Handgriff für einen elektro-optischen Diagnosegerätesatz
US5431153A (en) * 1993-06-11 1995-07-11 Lee; Hans Surgical apparatus for assisting in the release of the carpal tunnel
US5438976A (en) * 1993-11-29 1995-08-08 Nash; Jeanne L. Teeth protector for laryngoscope blade
US5501651A (en) * 1994-06-13 1996-03-26 Bauman; Jack Fluid submersible laryngoscope preventing electrolytic current flow
WO1996020634A1 (en) * 1995-01-05 1996-07-11 Propper Manufacturing Co., Inc. Switch mechanism for use in a laryngoscope handle
US5776053A (en) * 1997-04-15 1998-07-07 Dragisic; Branislav M. Laryngoscope blade with protective insert
US5879304A (en) * 1993-11-12 1999-03-09 Truphatek International Ltd. Single use laryngoscope blade
US6106458A (en) * 1996-05-06 2000-08-22 Ha; Da Anesthetic laryngoscope with manual controlled oxygen ejection means
US6626829B1 (en) 2002-03-05 2003-09-30 Eddie W. Skaggs Laryngoscope and method
US6666819B2 (en) * 2000-12-06 2003-12-23 Heine Optotechnik Gmbh & Co. Kg Laryngoscope
US20040034281A1 (en) * 2001-07-23 2004-02-19 Richard Cartledge Modified laryngoscope blade to reduce dental injuries during intubation
US20060241501A1 (en) * 2004-09-28 2006-10-26 Zila Pharmaceuticals, Inc. Method and apparatus for detecting abnormal epithelial tissue
US20070129606A1 (en) * 2004-02-29 2007-06-07 Eugeny Pecherer Metal laryngoscope blade
US20070197876A1 (en) * 2006-02-17 2007-08-23 Lane Edward D Dental guard for airway intubation
US20080004498A1 (en) * 2004-11-23 2008-01-03 Eugeny Pecherer Handheld Penknife-Like Laryngoscope
US20080255462A1 (en) * 2004-09-28 2008-10-16 Zila Pharmaceuticals, Inc. Light stick
US20090271286A1 (en) * 1996-01-22 2009-10-29 Commerce Technology Licensing, L.L.C. Method and system for customizing marketing services on networks communicating with hypertext tagging conventions
US20100022843A1 (en) * 2007-03-11 2010-01-28 Eugeny Pecherer Laryngoscopes and rechargeable illumination units for use therewith
US20100041953A1 (en) * 2004-02-29 2010-02-18 Truphatek International Ltd., Metal laryngoscope blade with illumination assembly
US20110060190A1 (en) * 2007-08-07 2011-03-10 Truphatek International Ltd. Laryngoscope apparatus with enhanced viewing capability
US8394016B1 (en) * 2009-07-02 2013-03-12 Bruce Cabot Arné Illuminated airway article
US20130158358A1 (en) * 2010-08-18 2013-06-20 Throat Scope Pty Ltd Tongue depressor
US8512234B2 (en) 2011-04-07 2013-08-20 Truphatek International Ltd. Laryngoscope assembly with enhanced viewing capability
US20160354072A1 (en) * 2015-06-03 2016-12-08 Obp Medical Retractor
US20170189004A1 (en) * 2015-06-03 2017-07-06 Obp Medical Retractor
US9867602B2 (en) 2015-02-05 2018-01-16 Obp Medical Corporation Illuminated surgical retractor
US9913577B2 (en) 2010-09-28 2018-03-13 Obp Medical Corporation Speculum
US20180177497A1 (en) * 2015-06-03 2018-06-28 Obp Medical Corporation End cap assembly for retractor and other medical devices
US10244922B2 (en) 2013-09-03 2019-04-02 Truphatek International Ltd. Single use laryngoscope handle for use in dual component laryngoscope assembly
US10278572B1 (en) 2017-10-19 2019-05-07 Obp Medical Corporation Speculum
US10420538B2 (en) 2015-02-05 2019-09-24 Obp Medical Corporation Illuminated surgical retractor
USD862696S1 (en) 2018-07-30 2019-10-08 Teleflex Medical Incorporated Laryngoscope blade
USD863555S1 (en) 2018-07-30 2019-10-15 Teleflex Medical Incorporated Laryngoscope blade
US10512519B2 (en) 2018-02-20 2019-12-24 Obp Medical Corporation Illuminated medical devices
GB2575807A (en) * 2018-07-23 2020-01-29 Francis Bejoy Kuttikkate Improved laryngoscope
US10687793B2 (en) 2017-07-18 2020-06-23 Obp Medical Corporation Minimally invasive no touch (MINT) procedure for harvesting the great saphenous vein (GSV) and venous hydrodissector and retractor for use during the MINT procedure
US10722621B2 (en) 2016-07-11 2020-07-28 Obp Medical Corporation Illuminated suction device
US10799229B2 (en) 2018-02-20 2020-10-13 Obp Medical Corporation Illuminated medical devices
USD904607S1 (en) 2019-05-07 2020-12-08 Obp Medical Corporation Nasal retractor
USD911521S1 (en) 2019-02-19 2021-02-23 Obp Medical Corporation Handle for medical devices including surgical retractors
US10959609B1 (en) 2020-01-31 2021-03-30 Obp Medical Corporation Illuminated suction device
US10966702B1 (en) 2020-02-25 2021-04-06 Obp Medical Corporation Illuminated dual-blade retractor
US20230078051A1 (en) * 2021-09-14 2023-03-16 Medsource International Llc Disposable screw cap for disposable laryngoscope
US12185923B2 (en) 2019-03-14 2025-01-07 Teleflex Medical Incorporated Universal laryngoscope blade for both conventional handles and fiber-illuminated handles
WO2025098624A1 (de) * 2023-11-10 2025-05-15 Brütsch Elektronik Ag Laryngoskop, spatel und handgriff für ein laryngoskop sowie videolaryngoskopsystem
US12318080B2 (en) 2023-07-21 2025-06-03 Coopersurgical, Inc. Illuminated surgical retractor capable of hand-held operation and of being mounted to a fixed frame

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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JPS579186B2 (instruction) * 1973-03-07 1982-02-19
JPS5143560U (instruction) * 1974-09-25 1976-03-31
JPS5147657U (instruction) * 1974-10-04 1976-04-08
JPS55150531A (en) * 1979-05-11 1980-11-22 Hitachi Ltd Picture tube
JPS5774947A (en) * 1981-08-24 1982-05-11 Matsushita Electronics Corp Color picture tube
US4406280A (en) * 1981-10-16 1983-09-27 Upsher Michael S Laryngoscope including a disposable blade and its method of use
JPH04114302U (ja) * 1991-03-27 1992-10-08 俊元 石橋 歯牙保護部材付喉頭鏡

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US104874A (en) * 1870-06-28 Improvement in tongue-holder for dentists
US2026065A (en) * 1933-02-08 1935-12-31 Carl P Rohr Dental apparatus
US3426749A (en) * 1965-05-20 1969-02-11 Longworth Scient Instr Co Ltd Disposable cover for laryngoscope blade
US3507272A (en) * 1967-02-18 1970-04-21 Laerdal A S Laryngoscope
US3592199A (en) * 1970-02-09 1971-07-13 Medical Products Corp Autoclavable surgical instrument illumination
US3598113A (en) * 1968-10-09 1971-08-10 Welch Allyn Inc Disposable laryngoscope construction

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
US104874A (en) * 1870-06-28 Improvement in tongue-holder for dentists
US2026065A (en) * 1933-02-08 1935-12-31 Carl P Rohr Dental apparatus
US3426749A (en) * 1965-05-20 1969-02-11 Longworth Scient Instr Co Ltd Disposable cover for laryngoscope blade
US3507272A (en) * 1967-02-18 1970-04-21 Laerdal A S Laryngoscope
US3598113A (en) * 1968-10-09 1971-08-10 Welch Allyn Inc Disposable laryngoscope construction
US3592199A (en) * 1970-02-09 1971-07-13 Medical Products Corp Autoclavable surgical instrument illumination

Cited By (108)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037588A (en) * 1975-09-11 1977-07-26 Richard Wolf Gmbh Laryngoscopes
EP0030014A1 (en) * 1979-11-28 1981-06-10 Michael S. Upsher A combination of a laryngoscope and a flexible tube
EP0110333A3 (en) * 1979-11-28 1984-10-24 Michael S. Upsher Improved laryngoscope
US4295465A (en) * 1980-04-03 1981-10-20 N.A.D., Inc. Laryngoscope blade
WO1983001373A1 (en) * 1981-10-16 1983-04-28 Upsher, Michael, S. A laryngoscope including a separate disposable blade and its methode of use
US4579108A (en) * 1983-03-07 1986-04-01 Jack Bauman Laryngoscope blade and disposable cover
US4570614A (en) * 1983-05-06 1986-02-18 Jack Bauman Laryngoscope with disposable blade and light conductor
US4557256A (en) * 1984-07-23 1985-12-10 Jack Bauman Examination device with an improved blade connection
US4573451A (en) * 1984-11-08 1986-03-04 Jack Bauman Laryngoscope blade with a bendable tip
US4583528A (en) * 1984-11-08 1986-04-22 Jack Bauman Examining device with improved optical coupling between the light source and light conductor
US4607623A (en) * 1984-11-08 1986-08-26 Jack Bauman Unitary insert support frame for the handle of an examining device
USD297363S (en) 1985-07-08 1988-08-23 Albert Salerno Laryngoscope blade
US4729367A (en) * 1986-02-18 1988-03-08 Jack Bauman Submergible laryngoscope with handle fluid sealing means
US4669449A (en) * 1986-02-18 1987-06-02 Jack Bauman Submergible laryngoscope metallic housing for fiber optics power source
US4679547A (en) * 1986-02-19 1987-07-14 Jack Bauman Fluid submersible laryngoscope
EP0233761A3 (en) * 1986-02-19 1987-11-11 Jack Bauman Submergible laryngoscope metallic housing for battery
US4694822A (en) * 1986-04-01 1987-09-22 Jack Bauman Submergible laryngoscope battery housing
US4924855A (en) * 1988-07-25 1990-05-15 Albert Salerno Laryngoscope blade
US4947896A (en) * 1988-11-04 1990-08-14 Bartlett Robert L Laryngoscope
US4958624A (en) * 1989-03-31 1990-09-25 Welch Allyn, Inc. Interchangeable laryngeal blade
US5060633A (en) * 1990-08-31 1991-10-29 Gibson Michael S Laryngoscope blade
US5178131A (en) * 1991-04-30 1993-01-12 Upsher Laryngoscope Corporation Waterproofed laryngoscope handle
US5431153A (en) * 1993-06-11 1995-07-11 Lee; Hans Surgical apparatus for assisting in the release of the carpal tunnel
DE9313009U1 (de) * 1993-08-30 1993-11-04 Heine Optotechnik GmbH & Co KG, 82211 Herrsching Handgriff für einen elektro-optischen Diagnosegerätesatz
US5542904A (en) * 1993-08-30 1996-08-06 Heine Optotechnik Gmbh & Co. Kg Handgrip for an electro-optical diagnostic apparatus set
US5879304A (en) * 1993-11-12 1999-03-09 Truphatek International Ltd. Single use laryngoscope blade
US5438976A (en) * 1993-11-29 1995-08-08 Nash; Jeanne L. Teeth protector for laryngoscope blade
US5501651A (en) * 1994-06-13 1996-03-26 Bauman; Jack Fluid submersible laryngoscope preventing electrolytic current flow
AU695792B2 (en) * 1995-01-05 1998-08-20 Propper Manufacturing Co., Inc. Switch mechanism for use in a laryngoscope handle
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NL7212766A (instruction) 1973-03-23
IT967660B (it) 1974-03-11
ATA778672A (de) 1977-07-15
HK14376A (en) 1976-03-26
DE2147054C3 (de) 1974-06-20
CA1011203A (en) 1977-05-31
AT342184B (de) 1978-03-28
BE789022A (fr) 1973-03-20
GB1402102A (en) 1975-08-06
JPS5620013B2 (instruction) 1981-05-11
DE2147054B2 (de) 1973-11-15
FR2154159A5 (instruction) 1973-05-04
CH545623A (instruction) 1974-02-15
DE2147054A1 (de) 1973-04-05
JPS4840296A (instruction) 1973-06-13

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