Biopsy forceps having detachable handle and distal jaws
    1.
    发明授权
    Biopsy forceps having detachable handle and distal jaws 失效
    活检钳具有可拆卸的手柄和远端钳口

    公开(公告)号:US6007560A

    公开(公告)日:1999-12-28

    申请号:US931753

    申请日:1997-09-16

    摘要: An endoscopic biopsy forceps instrument includes a distal jaws assembly detachable from a proximal handle assembly. The proximal handle assembly includes a centrally slotted shaft and a spool having a laterally seated cross block which passes through the central slot. The distal jaws assembly includes jaws mounted on a clevis at the distal end of a coil and coupled to a pull wire which extends through the coil to its proximal end. The proximal end of the coil is provided with a connecting sleeve provided with a frustoconical portion having double-helical threads for removably coupling the coil to a shaft having a distal frustoconical portion having double-helical threads. The proximal end of the pull wire is provided with a grooved mating member and the spool is provided with a locking assembly having a spring-biased push button latch for releasably engaging the grooved mating member. The grooved mating member has an elongate cylindrical distal portion, a central cylindrical portion having a relatively larger diameter, a proximal cylindrical grooved portion, and a proximal conical portion having a rounded apex. The elongate distal portion has a bore into which the pull wire is secured. The mating member end of the pull wire can be snapped into the locking assembly and the coil can be quickly and securely coupled to the shaft.

    摘要翻译: 内窥镜活检钳包括可从近侧手柄组件拆卸的远端钳口组件。 近侧手柄组件包括中心开槽的轴和具有穿过中心狭槽的横向安置的交叉块的线轴。 远端钳口组件包括安装在线圈远端处的U形夹上并连接到延伸穿过线圈到其近端的拉线的钳口。 线圈的近端设置有连接套筒,该连接套筒带有具有双螺旋线的截头圆锥形部分,用于将线圈可拆卸地连接到具有双螺旋形螺纹的远端截头圆锥形部分的轴上。 拉线的近端设置有带槽的配合构件,并且线轴设置有锁定组件,该锁定组件具有用于可释放地接合带槽配合构件的弹簧偏置按钮闩锁。 带槽的配合构件具有细长的圆柱形远端部分,具有相对较大直径的中心圆柱形部分,近端圆柱形开槽部分和具有圆形顶点的近端圆锥形部分。 细长的远端部分具有一个孔,拉线被固定在该孔中。 拉线的配合构件端可以卡扣到锁定组件中,并且线圈可以快速且牢固地联接到轴。

    Biopsy forceps having detachable handle and distal jaws
    2.
    发明授权
    Biopsy forceps having detachable handle and distal jaws 失效
    活检钳具有可拆卸的手柄和远端钳口

    公开(公告)号:US5964717A

    公开(公告)日:1999-10-12

    申请号:US779034

    申请日:1997-01-06

    摘要: An endoscopic biopsy forceps instrument includes a distal jaws assembly detachable from a proximal handle assembly. The proximal handle assembly includes a centrally slotted shaft and a spool having a laterally seated cross block which passes through the central slot. The distal jaws assembly includes jaws mounted on a clevis at the distal end of a coil and coupled to a pull wire which extends through the coil to its proximal end. The proximal end of the coil is provided with a connecting sleeve provided with a frustoconical portion having double-helical threads for removably coupling the coil to a shaft having a distal frustoconical portion having double-helical threads. The proximal end of the pull wire is provided with a grooved mating member and the spool is provided with a locking assembly having a springbiased push button latch for releasably engaging the grooved mating member. The grooved mating member has an elongate cylindrical distal portion, a central cylindrical portion having a relatively larger diameter, a proximal cylindrical grooved portion, and a proximal conical portion having a rounded apex. The elongate distal portion has a bore into which the pull wire is secured. The mating member end of the pull wire can be snapped into the locking assembly and the coil can be quickly and securely coupled to the shaft.

    摘要翻译: 内窥镜活检钳包括可从近侧手柄组件拆卸的远端钳口组件。 近侧手柄组件包括中心开槽的轴和具有穿过中心狭槽的横向安置的交叉块的线轴。 远端钳口组件包括安装在线圈远端处的U形夹上并连接到延伸穿过线圈到其近端的拉线的钳口。 线圈的近端设置有连接套筒,该连接套筒带有具有双螺旋螺纹的截头圆锥形部分,用于将线圈可拆卸地连接到具有双螺旋形螺纹的远端截头圆锥形部分的轴上。 拉线的近端设置有带槽的匹配构件,并且线轴设置有具有弹簧偏置的按钮闩锁的锁定组件,用于可释放地接合带槽的配合构件。 带槽的配合构件具有细长的圆柱形远端部分,具有相对较大直径的中心圆柱形部分,近端圆柱形开槽部分和具有圆形顶点的近端圆锥形部分。 细长的远端部分具有一个孔,拉线被固定在该孔中。 拉线的配合构件端可以卡扣到锁定组件中,并且线圈可以快速且牢固地联接到轴。

    Endoscopic surgical instruments having detachable proximal and distal
portions
    3.
    发明授权
    Endoscopic surgical instruments having detachable proximal and distal portions 失效
    具有可拆卸的近端和远端部分的内窥镜外科器械

    公开(公告)号:US5782748A

    公开(公告)日:1998-07-21

    申请号:US676614

    申请日:1996-07-10

    摘要: An endoscopic surgical instrument includes a proximal handle assembly coupled to a relatively long coil and to a relatively long pull wire extending through the long coil, and a distal jaw assembly coupled to a relatively short coil and to a relatively short pull wire extending through the short coil. The distal ends of the long coil and pull wire are provided with a first coupling device and the proximal ends of the short coil and pull wire are provided with a second coupling device which is mateable with the first coupling device. The first and second coupling devices couple the distal end of the long coil with the proximal end of the short coil and the distal end of the long pull wire with the proximal end of the short pull wire. The presently preferred pull wire coupling includes a ball and socket coupling and the presently preferred coil coupling includes a bayonet coupling. A rigid endoscopic surgical instrument with a detachable end effector assembly is also disclosed. The design of the coupling devices permits the coupling devices to be relatively small, having an overall outer diameter of two to three millimeters.

    摘要翻译: 内窥镜手术器械包括耦合到相对长的线圈的近端手柄组件和延伸穿过长线圈的相对长的拉线,以及耦合到相对短的线圈的远端钳口组件和延伸穿过短线圈的相对较短的拉线 线圈 长线圈和拉线的远端设置有第一联接装置,并且短线圈和拉线的近端设置有可与第一联接装置配合的第二联接装置。 第一和第二耦合装置将长线圈的远端与短线圈的近端以及长拉线的远端与短拉线的近端耦合。 目前优选的拉线联接器包括球窝联轴器,并且目前优选的线圈联轴器包括卡口联接器。 还公开了一种具有可拆卸端部执行器组件的刚性内窥镜手术器械。 联接装置的设计允许联接装置相对较小,具有2至3毫米的总外径。

    Endoscopic multiple sample bioptome with enhanced biting action
    7.
    发明授权
    Endoscopic multiple sample bioptome with enhanced biting action 失效
    具有增强咬合作用的内窥镜多样本活检钳

    公开(公告)号:US06561988B1

    公开(公告)日:2003-05-13

    申请号:US09715268

    申请日:2000-11-20

    IPC分类号: A61B1000

    摘要: An endoscopic multiple sample bioptome includes a hollow outer member and an axially displaceable inner member extending therethrough. The proximal ends of the outer and inner members are coupled to an actuator for axially displacing one relative to the other. The distal end of the outer member is coupled to one of a cylinder having a sharp distal edge and a jaw assembly, while the distal end of the inner member is coupled to the other. The jaw assembly includes a pair of opposed, preferably toothed jaw cups each of which is coupled by a resilient arm to a base member. The arms are bent to lie in planes which intersect the axis of the base member and to locate the jaws apart from each other. The base member is mounted inside the cylinder and axial movement of the jaw assembly and cylinder relative to each other draws the arms into the cylinder and brings the jaw cups together in a biting action. The biting action is enhanced according to the invention by arranging the cutting edge of each jaw to lie in a plane which intersects the plane in which the distal portion of the jaw arm lies. The biting action is further enhanced by providing a closing cam on the outer surface of the jaws which is engaged by the cylinder when the jaws are closed. The arrangement of the cutting edges also presents a smooth surface to the interior of an endoscope and the closing cams prevent the sleeve from sliding completely over and off of the jaws.

    摘要翻译: 内窥镜多样本生物切割器包括中空的外部构件和从其延伸穿过的可轴向移动的内部构件。 外部构件和内部构件的近端联接到致动器,用于相对于另一个轴向移动。 外部构件的远端联接到具有尖锐远端边缘和钳口组件的圆柱体中的一个,而内部构件的远端联接到另一个。 钳口组件包括一对相对的,优选有齿的钳口杯,每个钳口由弹性臂联接到基座构件。 臂被弯曲以位于与基部构件的轴线相交的平面中并且将夹爪彼此分开定位。 基座部件安装在气缸内,夹爪组件和气缸相对于彼此的轴向运动将臂插入气缸中,并使咬合杯以咬合动作一起接合。 根据本发明,通过将每个钳口的切割边缘布置在与钳口臂的远端部分所在的平面相交的平面中,根据本发明增强了咬合动作。 通过在钳口的外表面上设置关闭凸轮来进一步增强咬合动作,当闭合钳口时,该闭合凸轮由气缸接合。 切割边缘的布置还呈现出内窥镜内部的光滑表面,并且闭合凸轮防止套筒完全滑过和夹紧夹爪。

    Endoscopic multiple sample bioptome with enhanced biting action
    8.
    发明授权
    Endoscopic multiple sample bioptome with enhanced biting action 失效
    具有增强咬合作用的内窥镜多样本活检钳

    公开(公告)号:US5636639A

    公开(公告)日:1997-06-10

    申请号:US412058

    申请日:1995-03-28

    摘要: An endoscopic multiple sample bioptome includes a hollow outer member and an axially displaceable inner member extending therethrough. The proximal ends of the outer and inner members are coupled to an actuator for axially displacing one relative to the other. The distal end of the outer member is coupled to one of a cylinder having a sharp distal edge and a jaw assembly, while the distal end of the inner member is coupled to the other. The jaw assembly includes a pair of opposed, preferably toothed jaw cups each of which is coupled by a resilient arm to a base member. The arms are bent to lie in planes which intersect the axis of the base member and to locate the jaws apart from each other. The base member is mounted inside the cylinder and axial movement of the jaw assembly and cylinder relative to each other draws the arms into the cylinder and brings the jaw cups together in a biting action. The biting action is enhanced according to the invention by arranging the cutting edge of each jaw to lie in a plane which intersects the plane in which the distal portion of the jaw arm lies. The biting action is further enhanced by providing a closing cam on the outer surface of the jaws which is engaged by the cylinder when the jaws are closed. The arrangement of the cutting edges also presents a smooth surface to the interior of an endoscope and the closing cams prevent the sleeve from sliding completely over and off of the jaws.

    摘要翻译: 内窥镜多样本生物切割器包括中空的外部构件和从其延伸穿过的可轴向移动的内部构件。 外部构件和内部构件的近端联接到致动器,用于相对于另一个轴向移动。 外部构件的远端联接到具有尖锐远端边缘和钳口组件的圆柱体中的一个,而内部构件的远端联接到另一个。 钳口组件包括一对相对的,优选有齿的钳口杯,每个钳口由弹性臂联接到基座构件。 臂被弯曲以位于与基部构件的轴线相交的平面中并且将夹爪彼此分开定位。 基座部件安装在气缸内,夹爪组件和气缸相对于彼此的轴向运动将臂插入气缸中,并使钳口杯以咬合动作一起接合。 根据本发明,通过将每个钳口的切割边缘布置在与钳口臂的远端部分所在的平面相交的平面中,根据本发明增强了咬合动作。 通过在钳口的外表面上设置关闭凸轮来进一步增强咬合动作,当闭合钳口时,该闭合凸轮由气缸接合。 切割边缘的布置还呈现出内窥镜内部的光滑表面,并且闭合凸轮防止套筒完全滑过和夹紧夹爪。