大藤，本間式後頭下穿刺針に就て

　最近パンピング（Spinal Pumping）が，内耳性難聽及び聾の一治療方法として行われる樣になつてから，我々の教室では專ら後頭下穿刺で，腦脊髓液を多量に用いてパンピングを行い，其の爲頻繁に後頭下穿刺を行う樣になつた．

　後頭下穿刺は1905年頃Quincke氏により初めて動物実驗で行われてから，人体では1919年米人Wegeforth, Ayer ＆ Essick氏等により初めて試みられ，本邦では，昭和初年頃から施行される樣になつた．

　Homma describes a spinal puncture needle which is hnown as Daito-Homma suboccipital spinal punctnre needle that may be used for large volume "spinal pumping". The instrument measures 13.5cm. in length and 1.5mm. in it cross section diameter. The slanting surface for the cutting Point of the needle forms 20 degree with the shaft; and in its application for the purpose the patient should be placed on right lateral recumbent position while the slanting surface of the needle should face the vertex of patient's skull. Insertable portion of the instrument is 6cm. in length, at the end of which is found an adjustable indicator-stopper attachment. The base is constructed in similarity to Yamada-Sata spinal puncture needles, and provided with an outlet which allows measurement of spinal fluid prersure as well as removal of the fluid. A 20 cc. syringe is attachable to it for large volume" spinal pumping" With the realization of this needle, the author states, "spinal pumping" may now be administered, for the first time, in safety and with adequacy.