In some hospitals, it's routine to give all women in labor an iv, a flexible catheter placed in your vein (usually in the back of your hand or lower arm) to drip in fluids and medication.

在一些医院会给所有孕妇放留置针，在你的静脉安放灵活的导管(往往在你的手背，或者小手臂)，好做液体点滴。

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But researchers believe it will be a welcome replacement for current standard procedures, which require placing a flexible catheter tube through the nose and down into the esophagus.

但研究人员相信其将会代替目前标准的技术，而目前技术需要通过鼻腔置入一根软导管进入食道。

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Fiber-based OCT system is compact, flexible, and convenient to be combined with fiber catheter, endoscope and other imaging equipments to expand its observing scope and application fields.

光纤化设计的光学相干层析成像系统紧凑、灵活，便于与光纤导管、内窥镜和其它成像装置的有机结合，以拓展其观察范围和应用领域。

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The Symplicity renal denervation system consists of a flexible catheter and proprietary generator.

FORBES: About the Symplicity? Renal Denervation System

They ended up producing a flexible catheter tube that goes a bit of the way up the nostrils, then a guide wire is inserted into the targeted sinus. (In live patients this is done via an endoscope and fluoroscope.) A balloon catheter is advanced over the guide wire and positioned against the blocked ostium.

FORBES: Balloon Therapy

In bladder instillation, the prescription medication dimethyl sulfoxide, or DMSO, (Rimso-50) is placed into your bladder through a thin, flexible tube (catheter) inserted through the urethra.

CNN: Interstitial cystitis