An improved inhaler for administering anaesthetics / [Joseph Lobjois].

  • Lobjois, Joseph.
Date:
1904
Catalogue details

Licence: Public Domain Mark

Credit: An improved inhaler for administering anaesthetics / [Joseph Lobjois]. Source: Wellcome Collection.

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    Lobjois's Improved Inhaler for Administering Anaesthetics. ; COMPLETE! SPECIFICATION. An Improved Inhaler lor Administering* Anaesthetics. I JosErii Lobjois, of 35 Alfred Place, Bedford Square, in the County of London, Merchant, do hereby declare the nature of this invention and m what manner’the same is to be performed to be particularly described and ascertained in and by the following statement:— This invention for an improved inhaler for administering anaesthetics has 5 for its object to provide an inhaler into which the anaesthetic can be readily introduced either in just sufficient quantity to induce narcosis or for prolonged anaesthesia, and economically and successfully administered therefrom together with the necessary amount ot air required by the patient; and comprises a tube or hollow angle piece provided with an opening for the introduction of a bulb to or tube containing the anaesthetic, a stopper arranged to close said opening and hold the bulb in position, an eccentric or other device mounted in the angle piece for breaking off or opening the lower end of the bulb or tube to release the anaesthetic and controlled by a lever, an air inlet slot adapted to be closed by said lever as it is moved to break the bulb and opened by moving 15 the lever in the reverse direction, a face piece fixed to one end of the angle piece and adapted to make a hermetic connection between the angle piece and the respiratory organs of the patient, a gauze cage containing absorbent material detachbly affixed to the other end of the angle piece, and an india-rubber bag connected to the cage. 20 I11 one way of carrying out this invention, a celluloid face piece with a pneumatic pad is employed and is screwed on to one end of the metal angle piece. The other arm of the angle piece receives the tube or bulb through an inlet or mouth piece formed at the angle as a continuation of said arm. A cap adapted to fit the mouth piece is formed hollow to receive the upper end of a 25 glass bulb or tube of chloride of ethyl for instance, the cap and tube being then plugged into the angle piece. Adjacent to the lower end of the inserted glass tube or bulb the lever is mounted by means of which the lower end of the tube can be easily broken off allowing the anaesthetic to fall on the absorbent material contained in the cage which is fixed by a bayonet joint to the lower 30 end of the arm and directlv beloAv the inserted tube or bulb. The air inlet */ opening is closed or regulated by a suitable slide connected with the lever. A small gauze cup is inserted in the arm above the cage to catch the pieces of broken glass to prevent them falling into the absorbent material. The india- rubber bag is connected to the cage mount and encloses the cage. 35 When the apparatus is used in cases of prolonged anaesthesia, the anaesthetic can be poured in from a large tube through the mouth of the angle piece wdthout removing the face piece from the patient’s face. In use the bulb of ethyl chloride or the like having been introduced, when applying the face piece the patient blow's a little into the bag, the operator 40 then actuates the lever closing the air slot, breaking at the same time the point of the bulb. Should it be necessary to admit air the lever is reversed to again open the slot. By this device the anaesthetic is administered entirely within the apparatus. In the accompanying two sheets of illustrative drawings:— 45 Eig. 1 is a sectional elevation of an apparatus constructed according to this invention suitable for administering chloride of ethyl or other similar narcotic, Eig. 2 is a sectional plan of the same,