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United States of America Patent
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Issued Date -
Jun 6, 2024
app pub date -
Mar 30, 2022
filing date -
Mar 31, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A needle assembly comprises a needle support portion in which a hollow needle through which a medicinal solution can flow is supported, a movable needle cover portion that is movable in an opening portion of a casing such that an injection-side end portion of the medicinal solution of the needle protrudes outward in use, a tubular portion arranged on the needle support portion and partially abuttable with the movable needle cover portion, and a biasing portion configured to bias the movable needle cover portion in a direction opposite to one direction along with movement of the movable needle cover portion in the one direction. The needle support portion, the movable needle cover portion, the tubular portion, and the biasing portion are at least partially accommodated in the casing having the opening portion.
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