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    • 5. 发明授权
    • Safety trocar instrument having a retractable point actuated by a
trigger sleeve
    • 具有由触发套筒致动的可伸缩点的安全套管针器具
    • US5312354A
    • 1994-05-17
    • US787182
    • 1991-11-04
    • William J. AllenJeffrey A. Stein
    • William J. AllenJeffrey A. Stein
    • A61B17/34A61M5/20
    • A61B17/3496
    • A safety trocar instrument, for piercing the wall of an anatomical cavity to provide communication with the inside of the cavity, includes a tubular cannula and an elongate trocar having a sharp piercing point. The trocar is mounted for axial reciprocal movement within the cannula between a withdrawn rest position in which the point is received within and shielded by the distal end of the cannula and a projecting position in which said point is exposed beyond the distal end of the cannula. A retraction spring biases the trocar to its withdrawn position. A latch latches the trocar in the projecting position in opposition to the retraction spring, and a trip member can trip the latch to unlatch the trocar and thereby permit the trocar to be moved to its withdrawn rest position by the retraction spring. A mechanical trigger in the form of a trigger sleeve is mounted within the instrument. Its distal end is locatable between the extreme of said trocar point and the distal end of the cannula to sense counterforce exerted by the cavity wall after it has begun to be pierced by the trocar point and to sense relief of such counterforce when that distal end has cleared the cavity wall. The trigger sleeve is mechanically coupleable to the trip member to cause it to trip the latch in response to sensing relief of such counterforce.
    • 用于刺穿解剖腔壁以提供与空腔内部连通的安全套管针器具包括管状插管和具有尖锐穿刺点的细长套管针。 套管针被安装成在套管内轴向往复运动,在抽出的静止位置之间,其中该点被套管的远端容纳在其中并被套管的远端屏蔽,并且突出位置中所述点暴露于插管的远端之外。 收缩弹簧将套管针偏压到其撤回位置。 闩锁将套针针闩锁在与缩回弹簧相对的突出位置处,并且跳闸部件可以跳动闩锁以解除套针针,从而允许套管针通过缩回弹簧移动到其撤回的休止位置。 触发套筒形式的机械触发器安装在仪器内。 其远端可定位在所述套针针头的极端和套管的远端之间,以在其开始被套针针刺穿之后感测由腔壁施加的反作用力,并且当该远端具有 清空腔壁。 触发套筒机械地联接到跳闸构件以使其响应于这种反作用力的感测减轻而使闩锁跳闸。
    • 6. 发明授权
    • Linear surgical stapling instrument
    • 线性手术吻合器械
    • US5395034A
    • 1995-03-07
    • US947864
    • 1992-09-21
    • William J. AllenJoseph N. LoganJeffrey A. SteinPaul C. DiCesareDouglas M. SprangerPaul J. Mulhauser
    • William J. AllenJoseph N. LoganJeffrey A. SteinPaul C. DiCesareDouglas M. SprangerPaul J. Mulhauser
    • A61B17/068A61B17/072A61B19/00
    • A61B17/07207A61B2017/07214A61B2017/07228A61B2090/0814
    • A linear surgical stapling instrument includes a magazine for holding a plurality of undeformed surgical staples, and an upper jaw carrying the magazine and having opposed distal and proximal ends. An anvil is formed with staple-deforming pockets, and a lower jaw carries the anvil and has opposing distal and proximal ends respectively configured to mate with the distal and proximal ends of the upper jaw thereby to place the magazine and the anvil in confronting relation. A staple driver is carried in the upper jaw for driving staples held therein toward the anvil. Further, the upper and lower jaws are configured such that, when their respective distal and proximal ends are mated, a gap exists between the jaws in an intermediate region between their respective distal and proximal ends. Finally, a pivotably mounted clamp bar joins the upper and lower jaws and when actuated compresses them together in the intermediate region thereby to narrow the gap and to increase the clamping pressure between the magazine and the anvil. The instrument also includes a blocking system that prevents the jaws from being remated, once having been mated and having had staples in the magazine driven toward the anvil. Still further, the instrument includes a coupling device for coupling the jaws and clamp bar together when the staple driver is actuated.
    • 线性外科缝合器械包括用于保持多个未变形的外科缝合钉的刀库,以及承载刀库并具有相对的远端和近端的上钳口。 砧座形成有钉变形袋,下颚承载砧座,并且具有相对的远端和近端,分别构造成与上颚的远端和近端配合,从而将砧座与砧座置于面对关系。 在上颚上承载有钉子驱动器,用于向砧座驱动被夹持在其中的订书钉。 此外,上下钳口构造成使得当它们各自的远端和近端配合时,在它们各自的远端和近端之间的中间区域中的钳口之间存在间隙。 最后,可枢转地安装的夹紧杆连接上下爪,并且当被致动时将它们压在一起在中间区域中,从而使间隙变窄,并增加料盒与砧座之间的夹紧压力。 该仪器还包括一个阻挡系统,防止夹头被重新配合,一旦被配合并且已经将钉仓中的订书钉驱动到砧座。 此外,该仪器包括联接装置,用于当订书钉驱动器致动时将夹爪和夹杆连接在一起。
    • 7. 发明授权
    • Needle assembly having single-handedly activated needle barrier
    • 针组件具有单手激活的针障
    • US5672161A
    • 1997-09-30
    • US717384
    • 1996-09-20
    • William J. AllenJeffrey A. Stein
    • William J. AllenJeffrey A. Stein
    • A61M5/158A61M5/32
    • A61M5/3202A61M5/3269A61M2005/3247A61M2005/3249A61M2205/583
    • A needle assembly having a single-handedly activated needle barrier includes a needle cannula having a lumen therethrough. A needle hub having an interior cavity terminating at an open proximal end of the hub is connected to the needle cannula so that the lumen is in fluid communication with the interior cavity. A guide element having a retaining groove therethrough is connected to the needle hub. An elongate barrier arm having a proximal end and a distal end includes a barrier element at its distal end. The barrier element includes a proximal end and a needle passageway therethrough. The barrier arm is positioned within the groove of the guide element and the needle cannula is positioned at least partially within the barrier element. The barrier arm is movable from at least a first retracted position wherein the distal end of the cannula passes through the barrier element so that the distal end of the needle cannula is exposed, to a second extended position wherein the barrier element surrounds the distal end of the needle cannula to help prevent accidental contact with the distal end of the needle cannula. Locking structure to prevent movement of the barrier arm from the second extended position is activated by movement of the barrier arm into the second extended position.
    • 具有单手激活的针阻挡物的针组件包括具有穿过其中的内腔的针插管。 具有终止于轮毂的开放近端的内腔的针毂连接到针插管,使得内腔与内腔流体连通。 具有穿过其中的保持槽的引导元件连接到针座。 具有近端和远端的细长屏障臂在其远端包括屏障元件。 阻挡元件包括通过其的近端和针通路。 阻挡臂定位在引导元件的凹槽内,并且针插管至少部分地定位在屏障元件内。 阻挡臂可以从至少第一缩回位置移动,其中套管的远端穿过屏障元件,使得针插管的远端露出到第二延伸位置,其中屏障元件围绕着远端 针套管有助于防止意外接触针套管的远端。 阻挡臂从第二延伸位置移动的锁定结构通过阻挡臂移动到第二延伸位置而被启动。