The surgical assistant, a manual for students, practitioners, hospital internes and nurses . rel.)Then air is drawn into the syringe, the tip is again closed * Stains of silver nitrate may be removed from the hands with astrong solution of potassium iodid; stains of iodin, with ammoniawater; and stains of methylene blue or other anilin dyes, with stronghydrochloric acid. 110 _ The Surgical Assistant. with a finger, and pressure is made on the piston rod. If ityields, the syringe is defective. The tests may be repeated,using water instead of air. If on attempting to empty thesyringe against the
The surgical assistant, a manual for students, practitioners, hospital internes and nurses . rel.)Then air is drawn into the syringe, the tip is again closed * Stains of silver nitrate may be removed from the hands with astrong solution of potassium iodid; stains of iodin, with ammoniawater; and stains of methylene blue or other anilin dyes, with stronghydrochloric acid. 110 _ The Surgical Assistant. with a finger, and pressure is made on the piston rod. If ityields, the syringe is defective. The tests may be repeated,using water instead of air. If on attempting to empty thesyringe against the compressing finger, water escapes at thebottom, the parts of the frame should be screwed moretightly together. If this fails to prevent the leakage, the in-side washer is defective or out of position, and should be re-placed or re-arranged. If the fluid in a syringe escapes abovethe piston, when pressure is exerted against the occludingfinger, the piston is too small. A syringe that cannot be boiled, once used in aspirating in-infected tissues, should not be employed for injections—at. Fig. 27. Repairing aspirating syringe with leather packing. least not until all its parts have been thoroughly but little used can be kept in good order by occa-sionally rnQistening the w&sberg and packings to prevent Care of Instruments. Ill shrinkage. To cleanse or repair a glass and metal syringewith leather or rubber packings, the top should be unscrewedand the piston removed. The framework and barrel arecleaned with soap and water or with benzin and then boiled,after taking out the washers. In most syringes, the pistonpacking can be regulated in size by means of the nut attachedto it. If it be of leather and is much shrunken it should besoaked in water, but only long enough to restore it to theproper size. It may be sterilized by immersion in 2 per cent,formaldehyd solution. The piston should be re-introducedsidewise at first, and with a rotary motion. Rubber pack-ing
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectsurgery, bookyear1905
