k New Method of Laryngeal and Bronchial Medication by Means of a Spray and Tube During the Act of Deep Inspiration. BY J. MOUNT BEEVER, M.D., OF NEW YORK. Read in the Section of Laryngology and Otology at the Forty-first Annual Meeting of the American Medical Association, Nashville, Tenn., May, 1890. Reprinted from " The Journal of the American Medical Association," November 1, 1890. CHICAGO : Printed at the Office of the Association.. 1890. A NEW METHOD OF EARYNGEAE AND BRONCHIAL MEDICATION BY MEANS OF A SPRAY AND TUBE DURING THE ACT OF DEEP IN- SPIRATION. I bring before you a novel method and use of the ordinary cold spray. By the extra aid of a hard rubber tube six inches in length and three- quarters of an inch in diameter on both sides of its openings, through which a cold spray with tip pointing downwards is passed and held in the mouth between the lips which are clasped over the tube. With this tube, spray, and position of the lips and deep inspirations any desired medi- cated fluid amounting from a half to one ounce may be forcibly inhaled during the act of ten deep inspirations, and thus reach the deeper por-. tions of the respiratory tract, without coughing, gagging, or immediately expectorating the fluid thus inhaled. The time occupied for re-expectorat- ing the fluid medicament thus inhaled varies in different individuals. Some begin lightly within from five to ten minutes after the inhalation, others again half to three-quarters of an hour later. The sputa which is expectorated for sev- eral hours after contains a certain amount of the medicated inhalent used, showing thereby that 2 the desired medicament used remains in contact with the diseased parts long enough to have its therapeutic effect. The Method of Making an Application.-The patient is placed in an upright position, or, bet- ter, standing. The collar or tight dress about the neck is removed so that nothing interferes with taking deep and slow inspirations. The position of the head is an important point to be observed. It must be inclined backwards dur- ing the act of each inspiration so as to destroy as much as possible the rectangular curve that the windpipe makes with the oral cavity. The pa- tient before being made to use these two instru- ments, must be shown how to take deep inspira- tions and slow expirations without exerting him- self. He must also be taught how to hold in the breath for a few seconds after each inspiration. Those are some of the cardinal points to be looked after in order to get the results from each inspir- ation. These points are easily acquired by pa- tients. When once understood how to make use of such inspiratory and expiratory powers, with- out the spray and tube, then begin the same method over again; with this exception that the instrument (spray and tube) are now used for practice, as if the patient was taking an inhala- tion. Place the tube half its length into the mouth; the lips are clasped over it. The spray is placed into the opening of the hard rubber tube into which the spraying tube is inserted so that its inner end protrudes not more than one-quarter of an inch. This point regarding the size and position of the tube is very important. The best motor power for the propulsion of the spray, to my mind, is compressed air. The pressure need not exceed 60 lbs. This will suffice for any ap- plication. 3 It will be found during the act of deep-forced inspiration that the vocal cords separate and, still further, on inspiration they will separate to their entire extent. In the subsequent expiration they will again approach each other. During in- spiration the vocal cords form a wide and almost pentagonal opening, and under favorable circum- stances one can on examination then see the bifurcation of the trachea; as seen in the accom- panying drawing. Figure i. 4 The epiglottis stands nearly erect, if not, through its anatomical formation, is curled upon itself or may assume another shape. These phy- siological facts are known to every one who prac- tices with a laryngoscope. The tube serves as an adjunct to the propulsion of the specified inhalent. The tube, and the act of deep inspiration, also diverts the attention of the inhaler, and thereby calling into action an- other set of muscles favoring the passage of the inhalent. During the act of deep inspiration the tongue lays flat in the mouth, and as described before, the vocal cords and epiglottis are now in a position to permit the passage of the medicant, and assisted in reaching the desired spot by the propelling force of compressed air. ^ARD RUBBER rubt ■, Genius Iona Figure 2. I have made numerous experiments with this method of application upon the dog and rabbit before using it upon my patients, the details of which are beyond the scope of this paper. Never- theless, I will give a short description of one of 5 these experiments in order to show the effective- ness of this method in the application of medica- ments in a fluid state to the deeper portion of the respiratory tract. A healthy dog weighing fifty pounds was placed upon a table. The mouth was opened and the rubber tube inserted to its proper length. The mouth was then fastened over the tube by straps made for the purpose. The tube being open the respiration was thus carried on un- disturbed. The spray was then attached and the animal made to inhalate. The substance used was a strong solution of the extract of rhat- any, the quantity sprayed being half an ounce. This almost immediately brought out a bright Figure 3. redness of the larynx, trachea, and of the bronchi, which entirely disappeared after the discontinu- ance of the spray in about two hours from those parts under examination. The sputa, however, continued to be red some five hours longer; at this point the animal was killed and a post-mortem examination was made. Quantities of the fluid inhaled were found depos- ited throughout the trachea and smaller bronchi. Other experiments made with the same end in view gave similar results. It is a well known fact that finely divided sub- stances do penetrate into the air cells, as in the case of colliers, grinders and others who are con- stantly inhaling pulverized particles and matter while engaged in their occupations. On the 6 other hand it is extremely doubtful if any of the medicaments used in any of the numerous in- halers at present in vogue ever reach the walls of the ultimate lung alveoli. The conditions under which and the extent to which sprays and vapors enter the lungs are to- a certain extent satisfac- tory, most authorities who have written upon the subject and carried on experiments in this line, as, for instance, those made by Dr. Arthur Hill, Hassall, of St. Remo; Fournie, D'Bmarguay, Tavernier, Bataille, Schnitzler, Storck, Fieber, and others which tend to confirm my own obser- vations. Figure 4.-Position of the larynx during the act of deep inspiration. The advantages of the method I have described are as follows: i. Cheapness of the instrument, which is sim- ply a hard rubber tube. 2. The advantage of the continued effects of the remedy as the time between each application lasting five hours, until another is necessary, and 7 then the patient can satisfactorily make it him- self and thus keep up the remedial effects. 3. No cough or gagging is excited whatever, as compared with the use of the spray alone in making laryngeal application. 4. The quantity of fluid inhaled at each sitting is half to one ounce in from three to four min- utes' time. 5. When applied to the larynx, trachea and bronchi no spasmodic contractions arise during its use whatsoever. 6. Irritating medicaments in solution can be thus applied without exciting much cough. I often use nitrate of silver, thirty grains to the ounce, iodine, tannic acid, peroxide of hydrogen of full strength without any trouble or bad effects. My results in the treatment of (Storck's disease) or ozsena of the trachea, acute and chronic bron- chitis, laryngitis, tracheitis, phthisis, etc., have given me such satisfaction that I bring this method before your notice. For the want of more time I was compelled to shorten my paper. Several drawings accompany this paper. Fig- ure 1 demonstrates the exact position of the lips around the tube during the act of deep in- spiration. Figure 2 shows a Sass' glass downward point- ing spray passed through the hard rubber tube, the spray points looking out at the opposite open- ing a quarter of an inch. Figure 3 shows the tube. Figure 4 illustrates the position that the vocal cords take during the act of deed-forced inspira- tion. Tubes are made by Tiemann & Co., New York City. 83 2nd avenue, New York City.