Improvements in mouth gags / [Lyster Cole Baker].

  • Baker, Lyster Cole.
Date:
1903
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in mouth gags / [Lyster Cole Baker]. Source: Wellcome Collection.

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    N° 20,874 A.D.1902 Date of Application, 18th Sept., 1902 Complete Specification Left, 21st May, 1903—Accepted, 25th June, 1903 PROVISIONAL SPECIFICATION. “ Improvements in Mouth Gags.” I, Lyster Cole Baker, M.D. of Bayfield, Kent Road Southsea, in the County of Hampshire, do hereby declare the nature of this invention to be as follows; — My invention relates to a surgical instrument known as a mouth gag ” for holding the mouth open during a surgical operation or the like and whicii con- 5 sists of a pair of tongs or forceps the front ends of which are provided with grooves to fit on to the gums or teeth of the upper and lower jaws while the rear ends are provided with a ratchet catch, so that when, by pressing together the rear ends the front ends have been opened out sufficiently to hold the mouth open to the required extent they are secured in that position by the ratchet 10 catch. ' In such mouth gags as, at present constructed the limbs of the instrument are rigid so that when placed in position on the mouth they firstly project in a very inconvenient manner for performing an operation in the mouth, and secondly they require to be removed and attached in a different position when it 1 ’> is required to operate on a different part of the mouth. My present invention has for its object to obviate these inconveniences, and it consists in making the limbs of the instrument with one or more (preferably two) pivotal joints so arranged that the jointed parts can turn in a plane at right angles to the direction in which the limbs open and close so that while *20 the limbs have the requisite strength and rigidity for holding the mouth open, they can when fixed in position, be bent round laterally so as to be situated at the side of the face quite out of the way of the operator. The parts that fit on to the gums or teeth are made as separate trough shaped pieces lined with suitable soft material such as caoutchouc and attached to the 25 articulated limbs so that assuming the instrument to be attached at or near ihe middle of the mouth, with the limbs bent round sav to the right hand side of the face so as to enable the operator to operate on the left hand side of the mouth, then if he desire to operate on the right hand side, he merely requires to turn the instrument round on its pivotal joints for enabling him to do so. The 30 pivotal joints may be constructed in any suitable manner for affording the requisite strength s/ucli as by forming the end of the one part forked into which fits a tongue on the contiguous part. Dated this 18th day of September 1902. ' ABEL Sc IMRAY, :]5 Agents for the Applicant. COMPLETE SPECIFICATION. “ Improvements in Mouth Gags,” 1, LystER Cole Baker, M.D., of Bayfield, Kent Road, Southsea, in the County of Hampshire, do hereby declare the nature of this invention and in what manner [Price 8d.~\