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1. 发明授权

US5512050A Needle assembly with collapsible and retractable sheath 失效
标题翻译：具有可折叠和可收缩护套的针组件
公开(公告)号：US5512050A
公开(公告)日：1996-04-30
申请号：US309278
申请日：1994-09-20
申请人： Richard J. Caizza , Jon S. Bell
发明人： Richard J. Caizza , Jon S. Bell
IPC分类号： A61M5/32
CPC分类号： A61M5/3275 , A61M2005/3267 , A61M5/3257
摘要： A needle cannula is surrounded by a collapsible sheath. The entire sheath can be retracted proximally on the needle cannula into a position where the distal tip of the needle cannula is visible to ensure optimal positioning and orientation for an injection. A spring may urge the entire sheath toward its distal position, and a lock may permit releasably retention of the entire sheath in its retracted proximal position.
摘要翻译：针套管由可折叠护套包围。整个护套可以在针插管上向近端缩回到可以看到针管远端的位置，以确保注射的最佳定位和取向。弹簧可以将整个护套推向其远侧位置，并且锁可以允许将整个护套可释放地保持在其缩回的近侧位置。

2. 发明授权

US06183440B2 Hypodermic syringe having a selectively retractable needle 有权
标题翻译：皮下注射器具有可选择性地伸缩的针头
公开(公告)号：US06183440B2
公开(公告)日：2001-02-06
申请号：US09578601
申请日：2000-05-25
申请人： Jon S. Bell
发明人： Jon S. Bell
IPC分类号： A61M550
CPC分类号： A61M5/3232 , A61M5/002 , A61M5/3202 , A61M5/508
摘要： A syringe includes an elongate barrel having an open proximal end and a distal end that includes a fitting. It also has a plunger having a proximal end and a distal end, sized for slidable movement within the barrel thereby defining a chamber within the barrel. The plunger also has an elongate cavity therewithin that has a closed proximal end and an open distal end. The open end of the plunger is closed by a selectively releasable closure. The syringe has a hub that attaches to the barrel with a fitting conjugate to the fitting. The hub includes an elongate needle having a proximal end, a distal end and a fluid path therethrough. The needle is positioned in the passageway for slidable movement between a first position wherein the fluid path of the needle is in fluid communication with the chamber and a second position. The needle has a mount at its proximal end forming a seal with the chamber when the needle is in the first position. The syringe has a spring disposed about the mount biased to urge slidable movement of the needle from the first position. The syringe includes a latch disposed in the hub to engage the mount and retain the mount in the first position. The latch is releasable so that the spring urges the needle to move from the first into the second position within the cavity in the plunger, once the latch is released.
摘要翻译：注射器包括具有开放近端的细长筒体和包括配件的远端。它还具有柱塞，其具有近端和远端，其尺寸适于在筒体内滑动运动，从而限定筒体内的腔室。柱塞还具有其中具有封闭近端和开口远端的细长空腔。柱塞的开口端通过可选择地释放的封闭件封闭。注射器具有连接到筒体上的配合件与配件共轭的毂。轮毂包括细长的针，其具有近端，远端和穿过其的流体路径。针位于通道中，用于在第一位置之间滑动，其中针的流体路径与腔室流体连通并且具有第二位置。针在其近端处具有安装件，当针处于第一位置时，该安装件与腔室形成密封。注射器具有围绕安装件设置的弹簧，其被偏压以促使针从第一位置的可滑动运动。注射器包括设置在毂中的闩锁以接合安装件并将支架保持在第一位置。闩锁是可释放的，使得一旦闩锁被释放，弹簧就促使针从第一位置移动到柱塞内空腔内的第二位置。

3. 发明授权

US5487733A Assembly with collapsible sheath and tip guard 失效
标题翻译：装配有可折叠的护套和护套
公开(公告)号：US5487733A
公开(公告)日：1996-01-30
申请号：US420890
申请日：1995-04-11
申请人： Richard J. Caizza , Jon S. Bell
发明人： Richard J. Caizza , Jon S. Bell
IPC分类号： A61M5/32 , A61M5/00
CPC分类号： A61M5/3275 , A61M2005/325 , A61M2005/3267 , A61M5/326
摘要： A needle cannula is surrounded by a collapsible sheath and a spring that is expandable and retractable independent of the sheath. A tip guard is mounted to either the distal end of the sheath or the distal end of the spring. The tip guard is movable to protectively cover the tip of the needle cannula as the spring expands independently of the sheath. Proximally directed forces on the tip guard will merely urge the tip guard into tighter protective engagement with the distal tip of the needle cannula without exposing the needle cannula. However, the needle cannula can intentionally be re-exposed by merely collapsing the spring in a proximal direction.
摘要翻译：针插管被可折叠护套和可独立于护套的可伸缩的弹簧围绕。尖端护罩安装在护套的远端或弹簧的远端。当弹簧独立于护套时，护套可移动以保护性地覆盖针插管的尖端。尖端防护装置上的接近定向力将仅使针头护套与针插管的远侧末端更紧密地保护接合而不暴露针插管。然而，仅通过在近端方向上塌缩弹簧来有意地重新暴露针插管。

4. 发明授权

US5273543A Safety needle syringe 失效
标题翻译：安全针头注射器
公开(公告)号：US5273543A
公开(公告)日：1993-12-28
申请号：US990234
申请日：1992-12-14
申请人： Jon S. Bell , Richard Eisenring , Niall Sweeney
发明人： Jon S. Bell , Richard Eisenring , Niall Sweeney
IPC分类号： A61M5/34 , A61M5/178 , A61M5/32 , A61M5/00
CPC分类号： A61M5/322 , A61M5/347
摘要： A safety needle syringe includes a barrel having an inside surface defining a chamber, an open proximal end and a distal end. A movable needle carrier is positioned in fluid-tight engagement with the inside surface of the barrel and includes a distal end, a proximal end and a passageway there through in fluid communication with the chamber. A needle cannula projects outwardly from the distal end of the carrier and includes a lumen in fluid communication with the passageway. A plunger assembly is slidably positioned in fluid tight engagement with the inside surface of the barrel. Structure is providing for allowing the distal end of the plunger to engage the carrier for allowing axially directed and rotational forces applied to the proximal end of the plunger to be transmitted to the carrier. Control structure is provided for helping to prevent movement of the carrier with respect to the barrel during normal use of the syringe while the control structure is in a first locked position and for allowing the carrier to be moved proximally into the chamber through forces applied to the plunger while the control means is in a second unlocked position.
摘要翻译：安全针注射器包括具有限定腔室，敞开的近端和远端的内表面的筒体。可移动的针托架定位成与筒体的内表面流体密封接合，并且包括远端，近端和通道，其通过与腔室流体连通。针套管从载体的远端向外突出并且包括与通道流体连通的内腔。柱塞组件可滑动地定位成与筒的内表面流体密封接合。结构提供了允许柱塞的远端接合载体以允许施加到柱塞的近端的轴向和旋转力传递到载体。提供了控制结构，用于在控制结构处于第一锁定位置期间帮助防止载体相对于枪管移动，同时控制结构处于第一锁定位置，并允许载体通过施加到而控制装置处于第二解锁位置。

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