1851 Great Exhibition: Official Catalogue: Class X.: J. Arnott
619. ARNOTT, J., M.D., 34 Baker Street, Portman Square — Inventor.
Current apparatus for regulating the temperature of morbid parts with precision, and combining an appropriate temperature with equal pressure.
Apparatus for applying a very low or anaesthetic temperature in various inflammatory and painful diseases.
[The object of the apparatus here described is to supply a constant source of pressure, combined with a constant abstraction or supply of caloric. This is useful in the treatment of inflammatory and irritative diseases, and has been found of service in the relief of the pain of ulcers and diseased joints. A waterproof cushion is applied to the part, and its contents are changed by a current of water from a small reservoir elevated above the patient. A uniform temperature, whether below or above the standard of the body, is thus supplied. It is a singular fact that pain may be actually extinguished by benumbing cold, and the apparatus for supplying this degree of temperature has been successfully used in the relief of inflammatory and neuralgic diseases. The term anaesthetic is applied to agencies which remove the power of perceiving pain. The perpetual syphon exhibited is used in the application of this temperature to internal diseases, and for other purposes in surgery. An anaesthetic temperature may also be substituted for chloroform in many surgical operations.—R. E.]
Apparatus for removing contractions or obstructions in the excretory canals by the dilatation of fluid pressure.
[Dilatation by fluid pressure was suggested as a remedy in the cases described by Dr. Neil Arnott. It excels some modes of treatment in the quickness and safety of its action, and in the permanence of its effects. The principle of this dilator is illustrated by the suspended distensible tube; its construction by the instruments in the glass case. A fluid pressure dilator, used in the extraction of stone, and another used in dystocia, are also exhibited.—R. E.]