US3349764A - Self-illuminating tongue depressor with detachable tongue blade - Google Patents

Self-illuminating tongue depressor with detachable tongue blade Download PDF

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US3349764A
US3349764A US402094A US40209464A US3349764A US 3349764 A US3349764 A US 3349764A US 402094 A US402094 A US 402094A US 40209464 A US40209464 A US 40209464A US 3349764 A US3349764 A US 3349764A
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Prior art keywords
blade
handle
tongue depressor
tongue
illuminating
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US402094A
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Edinger Ladislav Leslie
Halasz Istvan
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Edinger Ladislav Leslie
Halasz Istvan
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/24Instruments 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 mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/06Instruments 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
    • A61B1/0661Endoscope light sources
    • A61B1/0676Endoscope light sources at distal tip of an endoscope

Description

31, 1967 1.. EDINGER ETAL 3,349,764

- SELF-ILLUMINATING TONGUE DEPRESSOR WITH DETACHABLE TONGUE BLADE Filed Oct. 7, 1964 INVENTORS I [AD/80W [5:06 622/0 60? BY lsru/w HAL/{s2 United States Patent 3,349,764 SELF-ILLUMINATING TONGUE DEPRESSOR WITH DETACHABLE TONGUE BLADE Ladislav Leslie Edinger, 1084 Allerton Ave., Bronx, N.Y. 10469, and Istvan Halasz, Wolfgang Strasse 121, Frankfurt am Main, Germany Filed Oct. 7, 1964, Ser. No. 402,094 Claims (Cl. 128-16) This invention relates to a tongue depressor and more particularly to a disposable tongue depressor with a selfcontained source of illumination for use by physicians and dentists in examining the teeth, mouth and throat.

A tongue depressor is a medical instrument used by physicians to assist them in examining the oropharyngeal cavity, the tongue depressor being used by the physician to depress the tongue in order to provide a clear visual field of the oropharyngeal cavity. The tongue depressors in common use today are fiat pieces of material made from either metal, wood or plastic, which are discarded after each use, or, in the case of metal, sterilized and reused.

In examining the oropharyngeal cavity, the physician must have in addition to a tongue depressor a source of illumination in order to illuminate the oropharyngeal cavity. At the present time the sources of illumination available to a physician during examination of the owpharyngeal cavity are either a fixed light source, such as sunlight, or other fixed sources of artificial illumination, or a movable light source, such as a flashlight. Both of these presently available sources of illumination have inherent disadvantages. In both cases the source of i1- lumination is separate from the tongue depressor. In the case of a fixed light source the physician must position the patient in such a way that the fixed light source is directed generally into the oropharyngeal cavity. It is frequently impossible to position the patient in such manner as to obtain adequate illumination of the oropharyngeal cavity when only a fixed light source is available. In the case of the use of a movable light source, such as a flashlight, both hands of the physician are occupied during the examination, one to hold the light source and the other to hold the tongue depressor, which does not allow the physician a free hand in order to adequately examine the oropharyngeal cavity or to apply medication. In addition, the physician must always adjust the angle of the movable light source to the movement of the tongue depressor.

In view of the foregoing, the primary purpose of the present invention is to provide a tongue depressor which has combined therewith its own source of illumination in order to obtain adequate illumination of the owpharyngeal cavity.

A further object of the present invention is to provide a tongue depressor with its own source of illumination, which is simple and inexpensive-to manufacture, thereby permitting disposal after a single use.

Another object of the present invention is to provide a disposable tongue-depressor, which is adapted to be detachably secured to a handle containing a source of energy for illuminating the tongue depressor, the source of energy being rechargeable.

These and further features and objects of the present invention will appear from a reading of the following detailed description of a preferred embodiment of the invention, to be read in conjunction with the accompanying drawings, wherein similar parts in the various views are identified by the same reference numeral.

In the drawings:

FIGURE 1 is a perspective view of the disposable tongue depressor of the present invention.

. is rigid. The cross-section of the blade FIGURE 2 is a side elevation view in cross-section of the disposable tongue depressor of the present invention.

FIGURE 3 is an end view of the disposable tongue depressor of the present invention, and

FIGURE 4 is an exploded view of a detail of FIGURE 2, illustrating the manner in which the disposable blade is ejected from the handle.

Briefly stated, the disposable tongue depressor of the present invention includes a handle which is adapted to have removably secured thereto a blade which functions at the tongue depressor and which may be removed from the handle after use and discarded. The handle includes a light source, such as a bulb, which is energized by a battery in the handle. The light bulb extends from the handle and is adapted to be received in the blade or tongue depressor in such manner that the bulb is positioned adjacent the end of the blade when the blade isattached to the handle.

The handle is supplied or provided with a switch for connecting the bulb to the battery in the handle in order to light the bulb. The handle is also provided with means for ejecting the blade or tongue depressor after use, so that the blade or tongue depressor can be discarded.

Referring now to the drawings and particularly to FIG- URE 1, there is illustrated the handle and blade for the tongue depressor of the present invention, the handle being identified in general by the numeral 10. The handle 10 includes a head 11 preferably made of plastic or other electrically non-conductive material. Extending axially from the head 11, is a filament 12, which has attached to the ends thereof a bulb 13. In order to protect, insulate and make rigid the filament 12, the filament 12 is encased in a rod 14. The filament 12 and bulb 13 are preferably covered with a transparent plastic cover or rod 14, such that the head 11, filament 12 and bulb 13 may all be molded at the same time in one operation.

The blade or tongue depressor is identified in general by the numeral 15. The blade 15 is preferably formed from a transparent molded plastic, so that the blade 15 15 is substantially identical to the cross-section of the head 11, such that the blade 15 when secured to the head 11 in a manner to be described will provide one continuous unit. The blade 15 has axially formed therein a cavity 16, extending throughout the length of the blade 15. If desired, the cavity 16 may terminate before the end 17 of the blade 15, but in that event the blade 15 must be transparent, such that when the bulb 13 is energized, the illumination may be difiused about the end of the blade 15, in order to provide illumination in the oropharyngeal cavity being examined.

The blade 15 is secured to the head 11 by inserting the rod 14 in the cavity 16 until the top 18 of the blade 15 abuts against the bottom 19 of the head 11. The blade 15 may be maintained in engagement with. the head 11 in any well-known manner. For example, the head 11 may have attached thereto springs 20 in the form of clips which exert pressure on the blade 15 in order to maintain engagement with the head 11. Another method of detachably securing the blade 15 to the head 11 is to form the cavity 16 with a light taper, such that the diameter of the cavity 16 decreases as the cavity 16 approaches the end 17 of the blade 15. In this manner, when the rod 14 is inserted into the cavity 16, it will become slightly wedged therein due to the taper of the cavity 16, this wedging action serving to keep the blade 15 axially abutting against the end 19 of the head 11.

It is to be noted that the cavity 16 need not be positioned as to extend axially through the blade 15. The cavity if desired may be formed on the side of the blade 15.

The interior of the head 11 is recessed to provide a chamber 21, which is adapted to have removably received therein a battery or other power source 22. The battery 22 is preferably of the cadmium nickel type, or other rechargable type of battery. The base of the chamber 21 is provided with contacts 23, which are connected by means of wires 24 with the filament 12. Between one contact 23 and its associated wire 24, there is interposed a switch 25, which is mounted on the exterior surface of one of the walls of the head 11. The purpose of the switch 25 is to enable the physician or other user of the tongue depressor of the present invention to selectively illuminate the bulb 13'.

The switch 25 is preferably of the double pole, double throw type. Thus, in one position, the switch 25 connects the battery 22 with the filament 12 to energize the light 13. In the other position of the switch 25, the battery 23 is connected with the contacts 26 of a female plug 27. When not in use, the head 11 is thereby adapted to be connected with any source of energy by means of the plug 27, in order to recharge the battery 22. The chamber 21 is closed by means of a removable plate 28, which permits removal and replacement of the battery 23.

In operation, when the physician or other technician desires to use the disposable tongue depressor of the present invention, the rod 14 enclosing the filament 12 and the bulb 13, is inserted in the cavity 16 in the blade 15 until the end 19 of the head 11 abuts against the top 18 of the blade 15. The springs 20 bear against the edges of the blade 15 and thereby maintain the blade 15 in axial alignment with the head 11.

When the physician has finished using the tongue depressor of the present invention, the blade 15 is detached from the head 11 and discarded. If desired, the blade 15 may be automatically detached from the head 11, so that the physician need not handle the blade 15. For this purpose the head 11 is provided with a plunger 29, which is adapted to slide in a bore 30, provided adjacent one side of the head 11. The bore 30 is so arranged such that the plunger 29 when not in use is completely encased in the head 11. The plunger 29 is provided with a knob 31 which protrudes through the bore 30 exteriorly of the surface of the head 11. When the physician is finished using the disposable tongue depressor of the present invention, the knob 31 is simply moved in a forward direction, thereby extending the rod 29. When the rod 29 is extended, it forces the blade 15 away from the end 19 of the head 11 and thereby permits disposal of the blade 15 automatically without any necessity for the fingers of the operator to touch the blade 15 after use. If desired, the plunger may be spring biased to forceably eject the blade 15.

What has been described is a tongue depressor which can bedisposed of after each use and which is provided with its own source of illumination. The blade 15 forming the tongue depressor of the present invention, can be manufactured at a cost comparative to tongue depressors presently in use. The head 11 and its associated filament 12 and bulb 13 can also be inexpensively manufactured and thereby makes feasible the disposable tongue depressor with its own source of illumination.

We claim:

1. A disposable self-illuminating tongue depressor comprising a handle, a rod extending laterally from said handle, means for illuminating said rod, a blade, a recess in said blade extending axially the length thereof, said rod being removably received in said recess and extending substantially the length thereof, spring means on opposite sides of said handle, said spring means bearing against opposite sides of said blade to detachably secure said blade to said handle, and plunger means in said handle for selectively ejecting said blade whereby said blade may be ejected from said handle after use and discarded.

2. A disposable self-illuminating tongue depressor comprising a handle, a rod extending laterally from said handle, a bulb positioned at the end of said rod removed from said handle, a battery in said handle, means for interconnecting said bulb with said battery to light said bulb, a blade, a recess in said blade extending axially the length thereof, said rod being removably received in said recess and extending substantially the length thereof, spring means on opposite sides of said handle, said spring means bearing against opposite sides of said blade to detachably secure said blade to said handle, and plunger means in said handle for selectively ejecting said blade whereby said blade may be ejected from said handle after use and discarded.

3. A disposable self-illuminating tongue depressor comprising a handle, a rod extending laterally from said handle, a bulb positioned at the end of said rod removed from said handle, a battery in said handle, leads extending from said battery through said rod to said bulb to energize and light said bulb, a blade, a recess in said blade extending axially the length thereof, said rod being slidably received in said recess and extending the length thereof whereby said bulb is adjacent the end of said blade removed from said handle, and spring means on said handle said spring means detachably securing said blade to said handle whereby said blade may be removed from said handle after use and discarded and plunger means in said handle for selectively ejecting said blade whereby said blade may be ejected from said handle after use and discarded.

4. A disposable self-illuminating tongue depressor in accordance with claim 3 wherein a switch is mounted exteriorly on said handle and interposed between said battery and said bulb to permit selective energization of said bulb.

5. A disposable self-illuminating tongue depressor in accordance with claim 4 wherein said battery is rechargeable.

References Cited UNITED STATES PATENTS 339,754 4/1886 Foote 128 -16 949,236 2/1910 Kaplan et a1. 128-18 2,225,405 12/ 1940 Osterman 1286.46 2,289,226 7/1942 Von Foregger 128-16 2,885,537 5/1959 Wood 128-16 X 2,911,968 11/1959 Schueler et al 1286 FOREIGN PATENTS 1,118,877 6/1956 France.

RICHARD A. GAUDET, Primary Examiner.

DALTON L. TRULUCK, Examiner.

Claims (1)

1. A DISPOSABLE SELF-ILLUMINATING TONGUE DEPRESSOR COMPRISING A HANDLE, A ROD EXTENDING LATERALLY FROM SAID HANDLE, MEANS FOR ILLUMINATING SAID ROD, A BLADE, A RECESS IN SAID BLADE EXTENDING AXIALLY THE LENGTH THEREOF, SAID ROD BEING REMOVABLY RECEIVED IN SAID RECESS AND EXTENDING SUBSTANTIALLY THE LENGTH THEREOF, SPRING MEANS ON OPPOSITE SIDES OF SAID HANDLE, SAID SPRING MEANS BEARING AGAINST OPPOSITE SIDES OF SAID BLADE TO DETACHABLY SECURE SAID BLADE TO SAID HANDLE, AND PLUNGER MEANS IN SAID HANDLE FOR SELECTIVELY EJECTING SAID BLADE WHEREBY SAID BLADE MAY BE EJECTED FROM SAID HANDLE AFTER USE AND DISCARDED.
US402094A 1964-10-07 1964-10-07 Self-illuminating tongue depressor with detachable tongue blade Expired - Lifetime US3349764A (en)

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426749A (en) * 1965-05-20 1969-02-11 Longworth Scient Instr Co Ltd Disposable cover for laryngoscope blade
US3435820A (en) * 1966-02-16 1969-04-01 Stanley Taub Illuminating endoscope with detachable shield
US3762400A (en) * 1971-10-26 1973-10-02 Donald B Mc Medical examining instrument
US3794091A (en) * 1971-10-07 1974-02-26 Med General Inc Sterile sheath for surgical illuminator
US3841317A (en) * 1972-12-18 1974-10-15 G Awais Heat-insulating shield for speculum
US3916881A (en) * 1974-04-12 1975-11-04 Propper Mfg Co Inc Illuminated tongue depressor
US4561430A (en) * 1984-06-11 1985-12-31 Walsh David J Light source for diagnostic test
US4643172A (en) * 1985-10-21 1987-02-17 Taff Barry E Luminescent tongue depressor
FR2614776A1 (en) * 1987-05-05 1988-11-10 Alglave Michel Tongue depressor for medical examination of the buccopharyngeal cavity, fitted with its end with a light source and a hygienic cap
WO1988008686A2 (en) * 1987-05-05 1988-11-17 Michel Alglave Intrabuccal examination spacer with lighting and transparent sleeve
US4807599A (en) * 1987-05-08 1989-02-28 Med-Struments, Inc. Illuminating tongue depressor
WO1990012541A1 (en) * 1989-04-14 1990-11-01 Proseptus Products Ab Instrument, tool or the like, with built-in light device
US4972825A (en) * 1988-09-26 1990-11-27 Vescovo Jr Louis J Disposable laryngoscope cover
US5318009A (en) * 1993-03-03 1994-06-07 Scientific Medical Programs, Inc. Illuminated tongue depressor
US5634885A (en) * 1995-03-29 1997-06-03 Kiro; Amnon Tongue depressor with lollipop holder
US5683350A (en) * 1995-11-21 1997-11-04 Paul; Glennon H. Oral transluminating device
US5891019A (en) * 1998-01-13 1999-04-06 Young; Rachel M. Tongue depressor for children and method
US6004265A (en) * 1999-03-01 1999-12-21 Hsu; Jin-Cherng Vaginal speculum with light guide means
US6059723A (en) * 1997-01-15 2000-05-09 Davis; James M. Fiberoptically illuminated tongue depressor
US6080105A (en) * 1997-06-26 2000-06-27 Spears; Robert A. Illuminated dental and surgical retractor and kit including plurality of blades and blades recharging base
US6176824B1 (en) 1996-10-29 2001-01-23 James M. Davis Fiberoptically illuminated appliances
US20040204631A1 (en) * 2003-04-09 2004-10-14 Fine Co., Ltd. Tongue depressor
US20070060795A1 (en) * 2005-09-14 2007-03-15 Spotlight Surgical, Inc. Lighted surgical retractors with LED illumination light engines
EP2074951A3 (en) * 2007-12-27 2010-11-10 HOYA Corporation Oral cavity insertion instrument and pharyngoscope apparatus
US20130158358A1 (en) * 2010-08-18 2013-06-20 Throat Scope Pty Ltd Tongue depressor
US20130252197A1 (en) * 2012-03-26 2013-09-26 Wesley Harden Dental retractor tool
USD829899S1 (en) * 2015-05-20 2018-10-02 Throat Scope Pty Ltd Tongue depressor blade
USD846120S1 (en) * 2015-05-20 2019-04-16 Throat Scope Pty Ltd Tongue depressor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US339754A (en) * 1885-04-11 1886-04-13 foote
US949236A (en) * 1906-09-15 1910-02-15 Samuel Kaplan Speculum and spatula.
US2225405A (en) * 1939-06-22 1940-12-17 Guth Stern & Co Inc Flashlight device
US2289226A (en) * 1941-03-10 1942-07-07 William N Allyn Laryngeal speculum
FR1118877A (en) * 1955-01-05 1956-06-12 Tongue depressor advanced light
US2885537A (en) * 1955-05-26 1959-05-05 Jr Elwood S Wood Illuminated surgical and dental instruments
US2911968A (en) * 1955-07-06 1959-11-10 Hassan E Schueler Cavity examining instrument with self-contained illuminating rod and source

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US339754A (en) * 1885-04-11 1886-04-13 foote
US949236A (en) * 1906-09-15 1910-02-15 Samuel Kaplan Speculum and spatula.
US2225405A (en) * 1939-06-22 1940-12-17 Guth Stern & Co Inc Flashlight device
US2289226A (en) * 1941-03-10 1942-07-07 William N Allyn Laryngeal speculum
FR1118877A (en) * 1955-01-05 1956-06-12 Tongue depressor advanced light
US2885537A (en) * 1955-05-26 1959-05-05 Jr Elwood S Wood Illuminated surgical and dental instruments
US2911968A (en) * 1955-07-06 1959-11-10 Hassan E Schueler Cavity examining instrument with self-contained illuminating rod and source

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426749A (en) * 1965-05-20 1969-02-11 Longworth Scient Instr Co Ltd Disposable cover for laryngoscope blade
US3435820A (en) * 1966-02-16 1969-04-01 Stanley Taub Illuminating endoscope with detachable shield
US3794091A (en) * 1971-10-07 1974-02-26 Med General Inc Sterile sheath for surgical illuminator
US3762400A (en) * 1971-10-26 1973-10-02 Donald B Mc Medical examining instrument
US3841317A (en) * 1972-12-18 1974-10-15 G Awais Heat-insulating shield for speculum
US3916881A (en) * 1974-04-12 1975-11-04 Propper Mfg Co Inc Illuminated tongue depressor
US4561430A (en) * 1984-06-11 1985-12-31 Walsh David J Light source for diagnostic test
US4643172A (en) * 1985-10-21 1987-02-17 Taff Barry E Luminescent tongue depressor
WO1988008686A2 (en) * 1987-05-05 1988-11-17 Michel Alglave Intrabuccal examination spacer with lighting and transparent sleeve
FR2614776A1 (en) * 1987-05-05 1988-11-10 Alglave Michel Tongue depressor for medical examination of the buccopharyngeal cavity, fitted with its end with a light source and a hygienic cap
US4807599A (en) * 1987-05-08 1989-02-28 Med-Struments, Inc. Illuminating tongue depressor
WO1988008686A3 (en) * 1988-04-29 1988-12-15 Michel Alglave Intrabuccal examination spacer with lighting and transparent sleeve
FR2630634A1 (en) * 1988-04-29 1989-11-03 Alglave Michel Retractor of intraoral examination incorporates lighting and flexible transparent sheath Disposable usable with such a retractor
US4972825A (en) * 1988-09-26 1990-11-27 Vescovo Jr Louis J Disposable laryngoscope cover
WO1990012541A1 (en) * 1989-04-14 1990-11-01 Proseptus Products Ab Instrument, tool or the like, with built-in light device
US5318009A (en) * 1993-03-03 1994-06-07 Scientific Medical Programs, Inc. Illuminated tongue depressor
US5634885A (en) * 1995-03-29 1997-06-03 Kiro; Amnon Tongue depressor with lollipop holder
US5683350A (en) * 1995-11-21 1997-11-04 Paul; Glennon H. Oral transluminating device
US6176824B1 (en) 1996-10-29 2001-01-23 James M. Davis Fiberoptically illuminated appliances
US6059723A (en) * 1997-01-15 2000-05-09 Davis; James M. Fiberoptically illuminated tongue depressor
US6080105A (en) * 1997-06-26 2000-06-27 Spears; Robert A. Illuminated dental and surgical retractor and kit including plurality of blades and blades recharging base
US5891019A (en) * 1998-01-13 1999-04-06 Young; Rachel M. Tongue depressor for children and method
US6004265A (en) * 1999-03-01 1999-12-21 Hsu; Jin-Cherng Vaginal speculum with light guide means
US20040204631A1 (en) * 2003-04-09 2004-10-14 Fine Co., Ltd. Tongue depressor
US20070060795A1 (en) * 2005-09-14 2007-03-15 Spotlight Surgical, Inc. Lighted surgical retractors with LED illumination light engines
EP2074951A3 (en) * 2007-12-27 2010-11-10 HOYA Corporation Oral cavity insertion instrument and pharyngoscope apparatus
US9078559B2 (en) 2007-12-27 2015-07-14 Koichi Tsunoda Oral cavity insertion instrument and pharyngoscope apparatus
US20130158358A1 (en) * 2010-08-18 2013-06-20 Throat Scope Pty Ltd Tongue depressor
US9386913B2 (en) * 2010-08-18 2016-07-12 Throat Scope Pty Ltd Tongue depressor
US20130252197A1 (en) * 2012-03-26 2013-09-26 Wesley Harden Dental retractor tool
USD829899S1 (en) * 2015-05-20 2018-10-02 Throat Scope Pty Ltd Tongue depressor blade
USD846120S1 (en) * 2015-05-20 2019-04-16 Throat Scope Pty Ltd Tongue depressor

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