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Medical ArticlesColicThe symptoms of this are cramping pains in the abdomen, witho... Trismus Lockjaw For traumatic trismus, use the B D current, of vigorous force... Wounds Soothing During the process of healing, wounds often give a great deal ... Expectoration What is commonly called a "cough and spit" is sometimes due to... The Human Comedy I know most of my readers have been heavily indoctrinated abo... The Triviality Of Trivialities LIFE is clearer, happier, and easier for us as things assume ... Tracheobronchial Diphtheria Urgent dyspnea in diphtheria when no membrane and but slight... How To Be Ill And Get Well ILLNESS seems to be one of the hardest things to happ... Belladonna The remedy which has attracted and still attracts in a very h... Treatment If pneumonia or gonorrhea is supposed to be the cause of the ... Diarrhoea This disease consists in a looseness of the bowels, generally... Aortic Insufficiency Aortic Regurgitation This lesion, though not so common as the mitral lesion, is of... Roentgenray Study In Foreign Body Cases Roentgenography.--All cases of chest disease should have the ... Acetic Acid Brown recommends diluted _Acetic Acid_ as a specific against ... The Plumbing And Sewering Of The Body The Wastes of the Body. Almost everything that the body does ... Kidney Complaints See Urinary Troubles. ... Ulcers Case Xxx C. Cocking, aged 17, has an ulcer of the size of half-a-crown... Polarization Of The Circuit I have said, in effect, a little above, that, while the curre... Putrid Symptoms Gargle Solution Of Chloride Of Soda Drink: Chlorate Of Potass Liquor Calcii-chloridi Should _putrid symptoms_ make their appearance (21), I would ... The Contagion Of Scarlatina Very Active The _contagion_ of scarlatina is very active, and adheres for... |
BatteriesCategory: INSTRUMENTARIUM Source: A Manual Of Peroral Endoscopy And Laryngeal Surgery The simplest, best, and safest source of current is a double dry battery arranged in three groups of two cells each, connected in series (Fig. 8). Each set should have two binding posts and a rheostat. The binding posts should have double holes for two additional cords, to be kept in reserve for use in case a cord becomes defective.* The commercial current reduced through a rheostat should never be used, because there is always the possibility of grounding the circuit through the patient; a highly dangerous accident when we consider that the tube makes a long moist contact in tissues close to the course of both the vagi and the heart. The endoscopist should never depend upon a pocket battery as a source of illumination, for it is almost certain to fail during the endoscopy. The wires connecting the battery and endoscopic instrument are covered with rubber, so that they may be cleansed and superficially sterilized with alcohol. They may be totally immersed in alcohol for any length of time without injury. * When this is done care is necessary to avoid attempting to use simultaneously the two cords from one pair of posts. [FIG 8.--The author's endoscopic battery, heavily built for reliability. It contains 6 dry cells, series-connected in 3 groups of 2 cells each. Each group has its own rheostat and pair of binding posts.] Next: Aspirating Tubes Previous: Measuring Rule
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