Apparatus for producing local anaesthesia / [Robert Telschow].

  • Telschow, Robert.
Date:
1897
Catalogue details

Licence: Public Domain Mark

Credit: Apparatus for producing local anaesthesia / [Robert Telschow]. Source: Wellcome Collection.

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    N° 25,801 A. I>. I8<k; Date of Application, nth Nov., 1896 Complete Specification Left, 13th Aug., 1897--Accepted, 13th Nov,, 1897 PROVISIONAL SPECIFICATION. Apparatus for Froducing Local Anaesthesia. I, Robert Telsciiow of Charlottenstrasse 63 Berlin in the Empire of Germany, Doctor of Medicine do hereby declare the nature of this invention to be as follows: — The novelty of this invention is, that etliyle chloride is mixed with air and o conducted by means of a pumping device placed on a tube, whereby such mixture is brought upon the part of the body to be treated, an intense anaesthesia being effected. Also the dropping cr spilling of the ethyle chloride so inconvenient in the hitherto used devices is prevented in consequence of the strong air admission, the liquid vaporises quickly and forms ice, whereby the anaesthesia liquid remains 10 localised. It is evident that instead of ethyle chloride other suitable substances can be used. The apparatus consists of an air blowing or pumping device which is put upon a tube. This tube enters into a mixing tube. On the front end cyf this mixing 15 tube is an opening, through which the mixture of ethyle chloride and air is compressed. On the back end of the mixing tube is connected the vessel or a glass tube containing the anaesthesia liquid. For tightening the joints rubber sockets mav be used. «/ The apparatus is operated in the following manner: The operator takes the 20 vessel containing the liquid in the one hand and the pump or blowing device such as a rubber ball in the other. The ethyle chloride flows towards the opening and arrives by means of the pressure given by the air blowing ball into the mixing tube and thence upon the part of the body to be treated. Dated this 16th dav of November 1896. v 25 HERBERT HADDAN & Co., Agents to Applicant. COMPLETE SPECIFICATION. 4 } » t * * f i' r • r • Apparatus for Producing Local Anaesthesia. I, Robert Telschow of Charlottenstrasse 63 Berlin in the Empire of Germany, 30 Doctor of Medicine do hereby declare the nature of this invention and in what manner the same is to be performed to be particularly described and ascertained in and by the following statement: — The purpose of this invention is to accelerate for local ethyle-chlojride- anaesthesia the vaporising of the ethyle-chloride by introducing air which causes \Price 8<L]