Improvements in sterilising apparatus and containers, particularly adapted for treating and containing dressings, instruments and the like, employed for surgical and medical purposes / [James Ernest Arnold].

  • Arnold, James Ernest.
Date:
1905
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in sterilising apparatus and containers, particularly adapted for treating and containing dressings, instruments and the like, employed for surgical and medical purposes / [James Ernest Arnold]. Source: Wellcome Collection.

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    -*-*■ - - - '■ .1- i- -- - - - ‘ *■ ---! \ - ■ -■ i. _ -.,**•»■ , - i — 1 Arnold and Clarice's Improvements in Sterilising Apparatus and Containers. No perforations are formed in the outer casing, and the action of the steam or other sterilising gas or vapour takes place by passing through the perforated ends of the casing and through the cotton wool or equivalent which forms the closure of the ends, and which is located, as aforesaid, between the covers and the perforated diaphragms. ^ It will be seen that a kettle so constructed when charged and closed, can, after having been subjected to the action of the steam in the sterilising chamber, be removed therefrom without the possibility of germs being carried to the sterilised dressing, and when such a kettle is opened by the removal of that cover above the removable perforated diaphragm, the packing in between the ^ said cover and the said diaphragm is taken away and the dressing perfectly sterilised can be conveniently removed for use. The sterilising apparatus consists of an open topped casing of metal, having a water jacket entirely around its sides and base, the said base being inclined downwards to the centre, in fact forming an inverted cone, the base exterior of 15 its water jacketted casing, being fitted with wings or blades upon which it can be stood when removed from the supporting frame hereafter mentioned. The upper edge of the water jacketted casing is fitted or formed with a flange, and the supporting frame preferably consists of a cylindrical, or other shaped metal sleeve within which the water jacketted casing is placed, so that its 20 flange rests upon the top of the said sleeve, and this sleeve at its base is pro¬ vided with legs upon which it can conveniently stand. From the lowest point of the base of the water jacketted casing there extends a steam exhaust pipe, which communicates with the interior of the casing, and this exhaust pipe is fitted with a union or other convenient connection 25 within the sleeve, and to that union connection is detachably fixed a short flexible tube extending through the wall of the sleeve and itself being con¬ nected, exterior of the sleeve, to some suitable pipe or the like by which the exhaust steam is carried away. At or about the base of the water jacket, there is another pipe connection 30 which serves as the supply pipe for the water which is to be contained within the water jacket, and this water simply pipe is likewise fitted with a union device within the sleeve, which is also connected to a flexible tube, connected, exterior of the sleeve, with an upstanding tube and the top of which has a funnel or equivalent device by which the water or other liquid can be con- 35 veniently supplied to the water jacket. This upstanding tube of the supply pipe mav be of transparent material and serve as a water gauge. Suitable heating devices such as a series of gas jets are fitted below the base of the casing, and such jets may be supported from the sleeve or its supporting legs, and upon the water in the said jacket being heated, the steam therefrom 40 escapes by a series of apertures formed near the top and in the interior of the water jacketted casing. Both the exhaust pipe and the supplv pipe are very readily disconnected from the casing within the sleeve, and thereby the said casing can be easily removed from the sleeve when desired and replaced with equal facility, it being 45 then only necessary to remake the connections. A removable cover is provided for the top of the casing, which cover may be secured to the flange of the casing by any suitable devices which are capable of ready connection and disconnection, and the said cover is fitted generally with a safety valve, a thermometer, and a pressure gauge. In the interior 50 the water jacketted casing is provided with a grid flooring, above the coned base, for supporting the kettles which are placed therein. Bated this 2nd day of June 1904. BREWER & SON, London and Leeds, Agents for the Applicant. 55
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