A notable improvement was made in the early nineteenth century when John Weiss, a London instrument maker, introduced a 12 blade octagonal scarificator whose blades, arranged on two rods or pinions, were made to cut in opposite directions. This advance was mentioned by Mapleson in 1813 and adopted by London professional cuppers thereafter. The advantage of the innovations was that the skin was thereby stretched, and a smoother, more regular cut could be made. Weiss’s Improved Scarificator also featured blades that could easily be removed for cleaning and repair. In place of two rows of six blades, one could insert a single row of four blades to adopt the scarificator for cupping on small areas such as the temple.[118] The feature of inserting a pinion with clean and sharp blades permitted the cupper to own only two scarificators. For cleansing the blades the manufacturer supplied a thin piece of wood covered with wash leather or the pith of the elder tree.[119]
Scarificators in which the blade rods turned in opposite directions (called “reversible” scarificators in trade catalogs) were more complicated to manufacture and therefore somewhat more expensive than unidirectional scarificators. The cocking lever meshed directly with only the first blade rod. To make the second blade rod turn in the opposite direction, an extra geared plate (or idler lever) was necessary to act as an intermediary between the cocking lever and the second blade pinion. The cocking lever turned the idler lever, which then turned the second pinion. Two support rods and two cantilever springs were needed in place of the one in unidirectional scarificators.
The brass, octagonal scarificator with 8, 10, and particularly 12 blades became the standard scarificator sold in England and America.[120] Both unidirectional (“plain”) and reversible scarificators were offered through trade catalogs. Smaller octagonal scarificators with four to six blades were sold for cupping parts of the body with limited surface area.
Cupping Procedure
The art of cupping, it was generally agreed, required a high degree of dexterity that could be maintained only by constant practice. Professional cuppers were concerned with avoiding any appearance of clumsiness, else the patient might come to fear an operation essential to his health. In the hands of an inexperienced physician or surgeon, cupping could be highly painful to the patient, and yet fail to produce the requisite amount of blood. While expert cuppers were usually available in cities, the rural doctor was not trained in the operation. It was to these rural practitioners that the treatises of the professional cuppers were addressed. One cupper, George Frederick Knox, offered in addition personal instruction in cupping procedures. His charge was a guinea for medical students and three guineas for non-medical students for a three month course.[121]
Physicians and surgeons took a renewed interest in cupping in the early nineteenth century. Cupping was no longer regarded as merely a useful substitute for bloodletting. Recent physiological research seemed to prove to the advocates of cupping that the effects of slow withdrawal of blood from the capillaries produced a different effect on the constitution than the quick withdrawal of blood from a vein. Thus, Knox was convinced by the results of this research that, while phlebotomy was indicated in cases of high fever, “particular phlegmasiae” specifically required the intervention of cupping.[122]
The procedure that the experts followed in wet cupping was as follows. First, the cups were immersed in hot water. Bayfield recommended that one glass be used for every four ounces of blood required. Thus, to abstract 18 to 20 ounces, as was common in cupping on the back or abdomen, four or five glasses were needed. The spot chosen for placement of the cups should be free of bone, but also not overly fatty. Cupping over the belly of a muscle was especially recommended. After the spot was fomented with hot water, the torch was dipped in alcohol, lit, and inserted into the cup for about two seconds. Once the torch was removed, the cup was allowed to sink of its own weight into the skin. During the minute that the skin was allowed to tumefy under the cup, the scarificator was warmed in the palm of the hand in preparation for the most difficult part of the operation. It required great skill to manage torch, scarificator, and cups in such a way as to lift the cup, scarify, and recup before the tumefaction had subsided. Monson Hills (1834) described the manipulations involved thus:
The torch is held in and across the palm of the right hand, by the little and ring finger, leaving the thumb, the fore and middle fingers free to hold the scarificator, which may be done by the thumb and fore finger only; the glass is then grasped by the thumb, fore and middle fingers of the left hand, leaving the little and ring fingers free; the edge of the glass is then detached from the skin by the middle finger of the right hand; the scarificator being set, care must be taken not to press upon the button with the thumb too quickly; directly the glass comes off, we apply the scarificator, spring it through the integuments, and then placing it between the free little and ring fingers of the left hand, we apply the torch to the glass, and glass to the skin over the incisions, as before recommended.[123]
Hills recommended practicing on a table, “taking care, of course, that the lancets are not allowed to strike the table.”
According to Bayfield, the blades of the scarificator were generally set at ¼″. If cupping behind the ears, they should be set at 1⁄7″, if on the temple at ⅛″, and if on the scalp at ⅙″. When the cups were two-thirds full, they were removed and reapplied if necessary. This, too, was no easy task. One had to manipulate cup and sponge deftly in order to avoid spillage. Cupping was to be not merely a neat operation, but an elegant one. After cupping, the wound was dabbed with alcohol or dressed, if necessary. Scarificator blades could be used some twenty times. After each use, the scarificator was to be cleaned and greased by springing it through a piece of mutton fat.[124]