A system of practical medicine. By American authors. Vol. 3

by Unknown

The treatment of the growths enumerated and the general conduct of the cases are subjects for the general surgeon, and a consideration of them here would be out of place.

It may, however, be well to describe a few instruments which have been found useful in the large group of cases where cauterization is the principal treatment indicated. Foremost among these is the instrument shown in Fig. 22, which combines advantageously the essential features of the galvano-cautery and the wire snare.

FIG. 22.

The Galvano-cautery Snare described in the text: 1, the cable of the battery; 2, the canula (which is not shown in full length); 3, the platinum wire; 4, the vulcanite carriage, with screws holding the ends of the platinum wire in metallic contact with the hinge-connections, by which the current is transmitted from the battery; 5, a slotted barrel of aluminium; 6, a movable nut on the screw; 7, a small portion of the screw disengaged from the slotted barrel; 8, milled stationary screw-head.

FIG. 23.

The Double Battery employed by the Author: The two sets of plates are seen united by a flat band of metal. The case which encloses the two separate batteries opens in front, displaying the cells, the plates (which are seen pendent over the cells), and the treadle. Above the figure of the battery lies a figure of the Flemming electrode handle and the electrode in position.

It is well known that a loop of wire which is steadily narrowed has great power in severing the attachment of tumors and other outgrowths. When of a large size, it may be sufficiently powerful to pass through bony structures, as well as the softer parts of the body. The principle of the snare has been employed both in the throat, the ear, and the nose; but when my attention was first directed to this subject the forms available were too large and heavy for the delicacy of manipulation demanded in removing small tumors lodged in the narrower recesses of the nose. Moreover, no snare that I could then find would permit the galvanic current to pass through the loop at the time it was being narrowed. I was led, therefore, to inquire into the practicability of an instrument which would at once be light, be of small size, and yet be sufficiently powerful to remove that class of hypertrophied tissues and polypoid growths which are of such frequent occurrence in the nasal chambers. The instrument shown in Fig. 22 combines these qualifications, and satisfactorily performs the service for which it was designed. The only feature of an essential character which may be said to be novel is the fact that the platinum wire (3, Fig. 22) forming the snare is covered with a uniform coat of copper, excepting alone the portion forming the loop, which is bare. As a consequence of this arrangement the current of electricity from the battery is conducted through a double canula (2, Fig. 22) by means of the copper. The length of the instrument being about 9½ inches, and its weight less than ½ ounce, delicacy of manipulation is not interfered with. Besides possessing all the features of the cold wire snare, it has the additional advantage of securing a more rapid and painless operation, without any hemorrhage. Sessile (pyramidal) or resilient growths may be removed by first burning a groove of any depth into them, after which the loop is drawn while the current is passing through it. For this task the cold wire snare is obviously incompetent. Growths of unusual size or hardness may be destroyed by the same procedure, and nodules no larger than a grain of wheat may also be excised with great nicety. It will be seen that failure to remove at least a portion of the growth attacked is an event exceedingly unlikely to occur. I have been particularly struck with the facility with which hypertrophies of the inferior turbinated bone can in this way be treated; and if cocaine be freely applied before the operation, it constitutes, in my judgment, the most speedy and the least painful of any means by which such conditions can be reduced. By using a canula with a curved end it is easy to snare growths situated on the posterior portion of the inferior turbinated bone. The current passing through the battery (Fig. 23, B) to the instrument can be interrupted by any of the numerous devices with which the practical electrician is familiar; or the treadle of the battery can be depressed and locked by the lever-catch, and the interruption of the current be determined by the pressure of the finger on the knob in the handle (Fig. 23, A). This is under all circumstances desirable, since the weight of the cells is sufficient to demand considerable force to be exerted by the foot—always enough to destroy the delicacy of the manipulation of the instrument.

FIG. 24.

Two Electrodes of peculiar shape in use by the Author.

An electrode which is wrapped nearly to its distal end (Fig. 24), and used either in a straight or a curved form, is of great advantage in reaching growths within the naso-pharynx. The straight form can be thrust directly back through the nasal chamber, and the curved form can be passed from the oro-pharynx to the naso-pharynx without danger of burning the posterior border of the soft palate.