Why are glass syringes used during anesthesia? What is the use of glass syringes?

The use of glass syringes for anesthesia may be for epidural anesthesia.

Epidural anesthesia chooses a glass syringe because the glass syringe is more lubricated after it meets with water, and the bolus injection does not have much resistance and can be injected evenly. If it is a plastic syringe, the resistance is relatively large. It is mainly a test method for entering the epidural space. The plastic syringe has high resistance and no hand feeling. When entering the epidural space, there will be a sensation of membrane rupture, and the glass needle tube only needs to tap the piston to cause negative pressure to suck back.

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