| 摘要 |
An apparatus for shielding a hypodermic needle after use may include a device adapted to accommodate a needle extending from an end thereof, a guard element coupled to the device, a lock element, and an indicator element. The guard element may slide axially with respect to the device and may include a slider portion and a shield portion. The shield portion may include an open slot to accommodate the needle. Upon sliding the guard element to a designated position, the lock element may automatically secure a position of the guard element relative to the device, such that the shield portion obstructs access to the needle tip. The indicator element may provide visual, audible, and/or tactile feedback to indicate that the lock element has been actuated to shield the needle tip.
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