GB2258398A - Laryngoscope - Google Patents

Laryngoscope Download PDF

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Publication number
GB2258398A
GB2258398A GB9116642A GB9116642A GB2258398A GB 2258398 A GB2258398 A GB 2258398A GB 9116642 A GB9116642 A GB 9116642A GB 9116642 A GB9116642 A GB 9116642A GB 2258398 A GB2258398 A GB 2258398A
Authority
GB
United Kingdom
Prior art keywords
beak
plate
throat
laryngoscope
patient
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.)
Withdrawn
Application number
GB9116642A
Other versions
GB9116642D0 (en
Inventor
Stuart Donald Macdonald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9116642A priority Critical patent/GB2258398A/en
Publication of GB9116642D0 publication Critical patent/GB9116642D0/en
Publication of GB2258398A publication Critical patent/GB2258398A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A61B1/06—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

Abstract

A laryngoscope comprises a beak (3) for insertion into a patient's throat and a movably mounted plate (7) carried on the beak which can be closed onto the free end of the beak during insertion thereof into the throat but which is movable away from the free end so as to displace any soft tissue in the patient's throat and improve visibility at the distal end of the beak. Hand-operated means (10) is provided for moving the plate between the open and closed positions. In an alternative embodiment, the plate is mounted at one end of an arm of a two-arm lever pivoted under the action of a torsion spring at the outer angle of the beak and handle, the other arm of the lever forming the manual operating means (see Fig. 2). The plate (7) may carry a mirror (8) on the side facing the beak. <IMAGE>

Description

LARYNGOSCOPE Description This invention relates to laryngoscopes.
The conventional laryngoscope comprises a handle portion for housing dry cells for illuminating a lamp, and a beak extending to one side of the handle from one end thereof, the beak being intended for insertion into a patient's throat and either having means for directing light from the lamp along the beak and away from the handle or being adapted to mount the lamp to so direct the light.
A disadvantage with conventional laryngoscopes is that visibility at the distal end of the beak is sometimes obscured by soft tissue in the patient's throat.
An object of the invention is to obviate or mitigate this disadvantage.
Accordingly, the present invention provides in a laryngoscope a hand-operated means comprising a plate which can be closed onto the free end of the beak for insertion into the patient's throat but which can be opened from the beak so as to displace any soft tissue in the patient's throat and improve visibility at the distal end of the beak.
Preferably, the plate has a mirror on the side thereof which faces the beak so that deeper regions of the patient's throat can be viewed via the mirror.
Preferably, the hand-operated means is spring-urged to close the plate onto the beak.
Embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Fig 1 is a side elevation of one embodiment of the invention; and Fig 2 is a side elevation of another embodiment of the invention.
In both figures a laryngoscope comprises a tubular handle portion 1 having a removable cap 2. The handle portion 1 is intended to house a medical illuminator (not shown) which itself houses dry cells and has a lamp at the end remote from the cap 2 which can be depressed to operate the illuminator. The laryngoscope also comprises a beak 3 extending to one side of the handle portion 1 from the end remote from the cap 2. The beak 3, in turn, comprises a spine 4 and a curved rib 5 extending from one side of the spine 4. A clear panel is set into a recess in the spine 4 on the side thereof remote from the rib 5 and one end of the panel can be seen at 6 where the spine 4 is cut away. The other end of the panel covers an opening exposing the lamp of the illuminator so that the light therefrom is directed by the panel along the beak 3.
The laryngoscope so far described is one conventional and disposable form. In another conventional form the handle simply houses dry cells and the lamp is mounted in a similar position to the end 6 of the clear panel.
In Fig 1 a hand-operated means comprises a plate 7 which can be closed onto the free end of the beak 3 as shown in full lines. The plate 7 has a mirror 8 on the side thereof which faces the beak 3. The plate 7 is mounted on one end of a length of spring wire having a first substantially straight reach 9 slidable through holes in the rib 5. Beyond the handle 1 the reach 9 curves into a second reach 10 which terminates in a coil 11 tightly embracing the handle portion 1 adjacent the cap 2. The length of spring wire is so stressed that it tends to close the plate 7 onto the beak 3.
In Fig 2 the mirrored plate 7,8 is again provided but in this case is mounted on a free end of one arm 12 of a two-arm lever pivoted at 13 to the spine 4 and having another arm 14 lying alongside the handle portion 1. A torsion spring 15 is provided at the pivot 13 so that the plate 7 tends to close onto the beak 3.
In both embodiments, the beak 3 can be inserted into the patient's throat with the plate 7 closed onto the beak 3. Then by grasping the handle, and thus depressing the item 10, 14 the plate 7 is moved away from the beak 3 as shown in broken lines, thus raising any soft tissue which might otherwise obscure vision and positioning the mirror 8 so that deeper regions of the patient's throat can be viewed.
The embodiment shown, in Fig 2 lends itself also to modification of another known model of laryngoscope where the beak is pivoted to the handle and a lamp mounted on the beak is lit when the beak is opened-out to assume the attitude relative to the handle as shown in the drawing.
In such a modification the arm 14 is pivoted to the arm 12 so that the former can be folded back onto the latter for stowage purposes.

Claims (6)

claims
1. A laryngoscope comprising a beak for insertion into a patient's throat and a pivotally mounted plate carried on the beak which can be closed onto the free end of the beak during insertion of the beak into the patient's throat but which is pivotal from the free end of the beak so as to displace any soft tissue in the patient's throat and improve visibility at the distal end of the beak and hand-operated means for pivoting the plate between the open and closed positions.
2. A laryngoscope according to claim 1, wherein the plate is provided with a mirror on the side thereof which faces the beak so that deeper regions of the patient's throat can be viewed via the mirror.
3. A laryngoscope according to claim 1 or 2, wherein the hand-operated means is spring-urged to close the plate onto the free end of the beak.
4. A laryngoscope according to claim 3, wherein the hand operated means comprises a lever mounted adjacent a handle of the laryngoscope.
5. A laryngoscope substantially as hereinbefore described with reference to and as shown in Figure 1 of the drawings.
6. A laryngoscope substantially as hereinbefore described with reference to and as shown in Figure 2 of the drawings.
GB9116642A 1991-08-01 1991-08-01 Laryngoscope Withdrawn GB2258398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9116642A GB2258398A (en) 1991-08-01 1991-08-01 Laryngoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9116642A GB2258398A (en) 1991-08-01 1991-08-01 Laryngoscope

Publications (2)

Publication Number Publication Date
GB9116642D0 GB9116642D0 (en) 1991-09-18
GB2258398A true GB2258398A (en) 1993-02-10

Family

ID=10699368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9116642A Withdrawn GB2258398A (en) 1991-08-01 1991-08-01 Laryngoscope

Country Status (1)

Country Link
GB (1) GB2258398A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5954632A (en) * 1997-05-21 1999-09-21 Richard Wolf Gmbh Endoscope in particular a mediastinoscope
NL1019263C2 (en) * 2001-10-31 2003-05-02 Peter Tjong Joe Wai Space creating instrument, for introducing into human pharynx, useful for helping person breathe, e.g. in an operation, comprises spacer, active in area between tongue and rear side of pharynx, and curved follower part
NL1019550C2 (en) * 2001-10-31 2003-05-02 Peter Tjong Joe Wai Space creating instrument, for introducing into human pharynx, useful for helping person breathe, e.g. in an operation, comprises spacer, active in area between tongue and rear side of pharynx, and curved follower part
WO2003041570A2 (en) * 2001-11-13 2003-05-22 Roger Mcmorrow A laryngoscope
WO2003051186A1 (en) * 2001-10-31 2003-06-26 Peter Tjong Joe Wai Instrument for creating space in a human pharynx, and method for using the instrument

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314551A (en) * 1980-03-06 1982-02-09 Kadell Roger J Laryngoscope
US4360008A (en) * 1980-09-02 1982-11-23 Corazzelli Jr Frank G Laryngoscope

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314551A (en) * 1980-03-06 1982-02-09 Kadell Roger J Laryngoscope
US4360008A (en) * 1980-09-02 1982-11-23 Corazzelli Jr Frank G Laryngoscope

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5954632A (en) * 1997-05-21 1999-09-21 Richard Wolf Gmbh Endoscope in particular a mediastinoscope
NL1019263C2 (en) * 2001-10-31 2003-05-02 Peter Tjong Joe Wai Space creating instrument, for introducing into human pharynx, useful for helping person breathe, e.g. in an operation, comprises spacer, active in area between tongue and rear side of pharynx, and curved follower part
NL1019550C2 (en) * 2001-10-31 2003-05-02 Peter Tjong Joe Wai Space creating instrument, for introducing into human pharynx, useful for helping person breathe, e.g. in an operation, comprises spacer, active in area between tongue and rear side of pharynx, and curved follower part
WO2003051186A1 (en) * 2001-10-31 2003-06-26 Peter Tjong Joe Wai Instrument for creating space in a human pharynx, and method for using the instrument
WO2003041570A2 (en) * 2001-11-13 2003-05-22 Roger Mcmorrow A laryngoscope
WO2003041570A3 (en) * 2001-11-13 2003-10-23 Roger Mcmorrow A laryngoscope
US7214184B2 (en) 2001-11-13 2007-05-08 Mcmorrow Roger Laryngoscope

Also Published As

Publication number Publication date
GB9116642D0 (en) 1991-09-18

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)