A cucaine spray-producer / by H. Percy Dunn.
- Dunn, Hugh Percy, 1854-1931.
- Date:
- [1885]
Licence: Public Domain Mark
Credit: A cucaine spray-producer / by H. Percy Dunn. Source: Wellcome Collection.
Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.
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![[2 ] possibly be produced ; it plays softly over a part without spluttering, and is so constructed as to act upon the eye-ball without incon- venience to the patient. In the ordinary spray, the air contained in the reservoir has only one means of exit; namely, through the jet. This causes a waste of some of the solution, since the spray continues to act until the air is exhausted in the reservoir. To counteract this waste, particularly serious in the case of cucaine, a small aperture has been made in the air-tube, which, while the spray is in use, can be kept covered vdth. the thumb. When the spray is no longer required, the thumb may be removed, the air at once escapes through this open- ng, and simultaneously the jet is arrested. This contrivance prevents all dropping of the solution, and also it regulates its action with gi'eat precision. The cucaine-spray has proved useful in all operations on the eye, and on mucous surfaces. In the removal of hiemorrhoids, for in- stance, the assistant is enabled to keep the part in an anaesthetic con- dition by an occasional spray, whilst the surgeon may carry out, un- interruptedly, the various details of the operation. In general surgery it is often equally useful, especially in herniotomy and ligature of arteries. There is, of necessity, a little difficulty in preventing pain, during the first incision through the skin. This having been, if possible, overcome, a sufficiently strong solution of cucaine-spray, turned on to the exposed surface of the subcutaneous tissue, will render the operation painless throughout the rest of its course, and for this reason practicable without the employment of a general ansesthetic. The spray-producer can be procured of Messrs. Wright and Co., 108, New Bond Street, London, who have made it at my suggestion ; and I am glad to take this opportunity of thanking them for their assistance, and for the trouble tliuy have taken in the matter.](https://iiif.wellcomecollection.org/image/b22301276_0008.jp2/full/800%2C/0/default.jpg)
