发明授权
- 专利标题： Needle tip guard for hypodermic needles
- 专利标题（中）： 皮下注射针针尖
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申请号： US09144398申请日： 1998-08-31
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公开(公告)号： US06443929B1公开(公告)日： 2002-09-03
- 发明人: Thomas C. Kuracina , Randall E. Ohnemus , Craig W. Smith , Richard Cohen
- 申请人： Thomas C. Kuracina , Randall E. Ohnemus , Craig W. Smith , Richard Cohen
- 主分类号： A61M532
- IPC分类号： A61M532
摘要：
A needle tip protective device. In one embodiment the needle tip protective device includes a needle guard that is slidably mounted on a hypodermic needle having a needle tip located at the distal end of the needle. The needle guard contains a movable needle trap that is biased against or toward the hypodermic needle. The needle trap advances over the tip of the needle, entrapping the needle tip as the needle guard is urged forward near the sharpened distal end of the hypodermic needle. A tether, or other limiting means, limits the forward movement of the needle guard along the needle. In one embodiment, the needle guard is manually urged forward along the shaft of the needle by the user. In yet another embodiment, a spring, or other biasing means, is used to move the needle guard along the shaft of the needle.