The subject matter of the present invention is an active agent and \/ or contrast agent, advantageously a drug solution and \/ or a diagnostic agent solution, from the urethral orifice to the urethra or urethra and bladder, without injecting with a painless or alleviating pain without a catheter This is an adapter for injecting or injecting a needle.This adaptor (6) has a central lumen (5) penetrating in the longitudinal direction, a rounded tip (1) inserted into an outer urethral orifice, a sealing collar (2), an appropriate portion of the feeder (4), preferably a syringe ISO 594 standard lure slip type or The arlock type end portion has a cylindrical connection portion (3) capable of being connected by a known method.According to the method according to the present invention, the adapter (6) is connected in a known manner to the appropriate portion (4) of the administering instrument containing the active agent and \/ or the contrast agent (s), or, preferably, the syringe ISO 594 standard lure slip or lure lock type tip, and then The distal portion (1) is inserted into the external urethral mouth, and the sealing collar (2) is pressed in an appropriate manner to the outer urethral orifice, and the excess pressure in the apparatus is utilized, and the active agent and \/ or contrast agent is then transferred from the adapter to the urethral through the external urethral orificeIt is injected into the urethra and bladder without leakage. Using this adapter and method, catheter free, painless or pain relieved bladder filling, bladder washing, bladder diagnosis, and bladder drip infusion can be performed without catheter use. By using an adapter and a catheter free method according to the present invention, direct local treatment and diagnosis of the urethra which is impossible in the catheter use can be performed.本発明の主題は、活性剤及び/又は造影剤、有利には薬剤溶液及び/又は診断剤溶液を、外尿道口から尿道内又は尿道及び膀胱内に、カテーテルを使用せずに無痛又は軽減した痛みで漏れを起こさずに注入、有利にはシリンジ注入又は点滴注入するためのアダプタである。このアダプタ(6)は、長手方向に貫通する中心内腔(5)を備え、外尿道
