. Hand-book of electro-therapeutics . ng cold, but when we apply thesinusoidal current and produce muscular contractions the patientrapidly becomes warm because of the muscular activity. If weapply the sinusoidal bath for five minutes, at 90° F. and usethe rapid sinusoidal current, we will obtain tonic effects notproduced by any other form of bath. The lowering of the tem-perature of the bath will increase the tonic effects, and patientswill readily endure a temperature of from 85° down to 80°F. with this current, a degree of temperature which could notbe borne in an ordinary bath. When we wis
. Hand-book of electro-therapeutics . ng cold, but when we apply thesinusoidal current and produce muscular contractions the patientrapidly becomes warm because of the muscular activity. If weapply the sinusoidal bath for five minutes, at 90° F. and usethe rapid sinusoidal current, we will obtain tonic effects notproduced by any other form of bath. The lowering of the tem-perature of the bath will increase the tonic effects, and patientswill readily endure a temperature of from 85° down to 80°F. with this current, a degree of temperature which could notbe borne in an ordinary bath. When we wish to produce alterative or metabolic effects,we continue the bath for from twenty to thirty minutes. The sinusoidal bath may be used in gout, chronic rheuma- SINUSOIDAL CURRENT. 117 tism, obesity, diabetes, gastric forms of neurasthenia, locomotorataxia, insomnia, myalgia, secondary anemia, and in many casesof chronic cardio-vascular disease with or without renal com-plication. In some cases of chronic nephritis this bath is verj^. Fisr. 60.—Victor No. 9 transformer. useful. In the sinusoidal current we see a rise and fall in thepositive direction immediately followed without a break by acorresponding fall and rise in the negative direction. Localapplications may be made in all the diseases and disordersnamed above. 118 ELECTRO-THERAPEUTICS. The sinusoidal apparatus employed by the author is theone made by the Victor Electric Company. This apparatus isshown in Fig. 60, the motor transformer for generating the sinu-soidal current resting on the shelf of the floor cabinet. In Fig. 60 is shown a transformer which delivers bothcautery and sinusoidal currents. CHAPTER X. HIGH FREQUENCY CURRENTS. The high frequency currents were discovered by ProfessorWilliam J. Morton, of the New York Post Graduate School andHospital, in the year 1881. The author thinks that this is thefirst American book to accord to Dr. Morton the credit he sorichly deseiTes. He has already received in France
Size: 1555px × 1607px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidhandbookofel, bookyear1910
