| 摘要 |
A sanitary or safety guard for a medical device subject to contamination, the medical device having a recess in its external surface, the guard comprising: (a) an elongate, hollow guard body having an internal chamber, an internal surface, an external surface, a first opening, and a second opening, the first and second openings being located at opposite ends of the guard body, the first opening being sufficient to allow at least a portion of the medical device to enter into the internal chamber and the second opening being sufficient to allow a portion of the medical device to extend from the internal chamber through the second opening; (b) a passage extending through the guard body between the internal and external surfaces; (c) a biasing arm connected by hinging means to the guard body; (d) an intrusion tab secured to the biasing arm such that the biasing arm projects the intrusion tab through the passage into the internal chamber of the guard body; (e) locking means secured to the guard body such that the locking means are antagonistically disposed to the biasing arm, the biasing arm being movable between a first position in which contact between the intrusion tab and a medical device disposed within the internal chamber forces the biasing and in an arcing direction away from the guard body, a second position in which the biasing and is releasably located in close proximity to the locking means, and a third position in which the biasing arm is irreversibly secured by the locking means.
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