Apparatus for counting the number of times a surgical instrument has
been used
    2.
    发明授权
    Apparatus for counting the number of times a surgical instrument has been used 失效
    用于计数外科器械已使用次数的装置

    公开(公告)号:US5313935A

    公开(公告)日:1994-05-24

    申请号:US107456

    申请日:1993-08-17

    摘要: An improved use counter for endoscopic instruments is mounted in the ferrule of the distal portion of an endoscopic instrument having separable proximal and distal portions. The counter includes a ratchet wheel having inner and outer teeth and a bimetallic coil having a fixed end and a free end. The fixed end of the bimetallic coil is attached to a hub portion of the ferrule and the free end of the bimetallic coil engages the inner teeth of the ratchet wheel. An inwardly extending tooth in the ferrule engages the outer teeth of the ratchet wheel to prevent backward movement of the ratchet wheel. The outer surface of the ratchet wheel is also provided with incremental indicia viewable through a window in the ferrule. As the bimetallic coil is heated and cooled when the instrument is sterilized, the free end of the coil engages and advances one tooth of the ratchet wheel. Movement of the free end is preferably limited by stops. A spring biased locking and disabling pin is mounted in the ferrule and engages a stepped width portion of the ratchet wheel. The pin prevents advancement of the ratchet wheel during shipping and disables the instrument after a predetermined number of sterilizations.

    摘要翻译: 用于内窥镜器械的改进的使用计数器安装在具有可分离的近端部分和远端部分的内窥镜器械的远端部分的套圈中。 计数器包括具有内齿和外齿的棘轮和具有固定端和自由端的双金属线圈。 双金属线圈的固定端附接到套圈的毂部,双金属线圈的自由端与棘轮的内齿啮合。 套圈内的向内延伸的齿接合棘轮的外齿,以防止棘轮向后移动。 棘轮的外表面还具有通过套圈中的窗口可见的增量标记。 当双金属线圈在仪器灭菌时被加热和冷却,线圈的自由端接合并前进棘轮的一个齿。 自由端的移动优选地通过停止来限制。 弹簧偏置的锁定和禁用销安装在套圈中并与棘轮的台阶宽度部分接合。 销钉防止在运输过程中棘轮的前进,并在预定数量的灭菌之后禁用该仪器。

    Temperature cycle counter
    3.
    发明授权
    Temperature cycle counter 失效
    温度循环计数器

    公开(公告)号:US5452335A

    公开(公告)日:1995-09-19

    申请号:US999228

    申请日:1992-12-31

    摘要: An apparatus for counting the number of times a temperature cycle occurs includes an indicator having sequential indicia and a temperature responsive member for indicating a next one of the indicia. Mechanical, fluid mechanical and electronic versions of the invention are disclosed. In the mechanical version, the indicator can be a ratchet member having teeth, a pawl and a display surface containing indicia. A temperature responsive element such as a bimetallic member engages the teeth of the ratchet and advances the ratchet each time the apparatus is subjected to a preset temperature cycle. A housing with a window masks the display to indicate one of the indicia as advanced by the temperature responsive element. Preferred embodiments of the mechanical version include a ring-like ratchet member with interior teeth and an exterior display surface. The number of teeth is preferably one or more less than the number of indicia so that upon advancing the ratchet member to the last indicia, it can be advanced no further. The bimetallic element is mounted inside the ring and the housing covers the outer surface of the ring. A removable locking pin is provided to prevent movement of the ratchet member until activated.

    摘要翻译: 用于计算温度周期发生次数的装置包括具有顺序标记的指示器和用于指示下一个标记的温度响应构件。 公开了本发明的机械,流体机械和电子版本。 在机械版本中,指示器可以是具有齿,棘爪和包含标记的显示表面的棘轮构件。 诸如双金属构件的温度响应元件接合棘轮的齿并且每当设备经受预设温度循环时使棘轮前进。 具有窗口的壳体掩蔽显示器,以将温度响应元件中的一个标记指示为高级。 机械版本的优选实施例包括具有内齿和外部显示表面的环形棘轮构件。 优选地,齿数比标记的数量少一个或多个,从而在将棘轮构件推进到最后的标记之后,可以进一步推进。 双金属元件安装在环内,壳体覆盖环的外表面。 提供可拆卸的锁定销以防止棘轮构件的运动直到被激活。

    Apparatus for counting the number of times a medical instrument has been
used
    4.
    发明授权
    Apparatus for counting the number of times a medical instrument has been used 失效
    用于计数医疗器械使用次数的装置

    公开(公告)号:US5359993A

    公开(公告)日:1994-11-01

    申请号:US998951

    申请日:1992-12-31

    摘要: An apparatus for counting the number of times a medical instrument has been sterilized includes an indicator having sequential indicia and a heat responsive member for indicating a next one of the indicia. Mechanical, fluid mechanical and electronic versions of the invention are disclosed. In the mechanical version, the indicator can be a ratchet member having teeth, a pawl and a display surface containing indicia. A heat responsive element such as a bimetallic member engages the teeth of the ratchet and advances the ratchet each time the apparatus is subjected to the heat of sterilization. A housing with a window masks the display to indicate one of the indicia as advanced by the heat responsive element. Preferred embodiments of the mechanical version include a ring-like ratchet member with interior teeth and an exterior display surface. The number of teeth is preferably one or more less than the number of indicia so that upon advancing the ratchet member to the last indicia, it can be advanced no further. The bimetallic element is mounted inside the ring and the housing covers the outer surface of the ring. The housing may be formed from the ferrule of an endoscopic surgical instrument or may be formed as part of the handle of such an instrument. A removable locking pin is provided to prevent movement of the ratchet member during shipping and the locking pin may be coupled to packaging so that it is automatically removed when the surgical instrument is removed from its packaging.

    摘要翻译: 用于计数医疗器械已经消毒的次数的装置包括具有顺序标记的指示器和用于指示下一个标记的热响应构件。 公开了本发明的机械,流体机械和电子版本。 在机械版本中,指示器可以是具有齿,棘爪和包含标记的显示表面的棘轮构件。 诸如双金属构件的热响应元件与棘轮的齿接合,并且每当设备经受灭菌热时每次使棘轮前进。 具有窗口的壳体遮蔽显示器,以指示由热响应元件提前的一个标记。 机械版本的优选实施例包括具有内齿和外部显示表面的环形棘轮构件。 优选地,齿数比标记的数量少一个或多个,从而在将棘轮构件推进到最后的标记之后,可以进一步推进。 双金属元件安装在环内,壳体覆盖环的外表面。 壳体可以由内窥镜手术器械的套圈形成,或者可以形成为这种器械的手柄的一部分。 提供可拆卸的锁定销以防止棘轮构件在运输期间的移动,并且锁定销可以联接到包装,使得当手术器械从其包装中移除时它被自动移除。

    Endoscopic bipolar electrocautery instruments
    7.
    发明授权
    Endoscopic bipolar electrocautery instruments 失效
    内镜双极电烙术

    公开(公告)号:US5395369A

    公开(公告)日:1995-03-07

    申请号:US91177

    申请日:1993-07-13

    摘要: An endoscopic bipolar electrocautery instrument includes a proximal actuator coupled by a tube and push rod to a pair of distal graspers. The tube is covered with an insulating shrink wrap from its distal end up to an uncovered proximal portion. A stationary jaw with an integral clevis is mounted inside the distal end of the tube and electrically contacts the inner surface thereof. The clevis holds a pair of ceramic insulators between which a movable jaw is mounted on an insulated bushing with an axle pin. The movable jaw is electrically and mechanically coupled to the push rod which is covered with an insulating shrink wrap from a point just proximal of its connection with the movable jaw to a point near its proximal end. The uninsulated proximal end of the tube is mounted in a conductive bushing which rotates within a nonconductive handle. The proximal end of the push rod extends beyond the conductive bushing and a rubber insulator is fitted between the bushing and the push rod. A nonconductive actuating lever is hingedly attached to the handle and the push rod is rotatingly coupled thereto. A pair of Y-shaped electrical wiper contacts are insert molded in a nonconductive member mounted in the handle and respectively contact the bushing and uninsulated portion of the push rod on either side of the rubber insulator. A bipolar cable insert molded in the nonconductive member is coupled to these contacts and to a source of current.

    摘要翻译: 内窥镜双极电烙术包括通过管和近端致动器连接到一对远端抓持器。 该管被绝缘的收缩包裹物从其远端覆盖到未覆盖的近端部分。 具有整体式U形夹的固定颚安装在管的远端内部并与其内表面电接触。 U形夹具有一对陶瓷绝缘体,在该绝缘体之间可动夹爪安装在具有轴销的绝缘衬套上。 活动夹爪电动和机械地联接到推杆上,该推杆被绝缘收缩包裹物覆盖,该绝缘收缩包装从其与活动夹爪的连接的近侧点到其近端附近的点。 管的未绝缘近端安装在导电套管内,导电衬套在非导电手柄内旋转。 推杆的近端延伸超过导电衬套,并且橡胶绝缘体装配在衬套和推杆之间。 不导电的致动杆铰接地附接到手柄,并且推杆旋转地联接到其上。 一对Y形电气刮水器触点插入模制在安装在手柄中的非导电构件中,并分别接触橡胶绝缘体两侧的推杆的衬套和未绝缘部分。 模制在非导电构件中的双极电缆插入件连接到这些触点和电流源。

    Endoscopic scissors having scissor elements loosely engaged with a clevis
    9.
    发明授权
    Endoscopic scissors having scissor elements loosely engaged with a clevis 失效
    内窥镜剪刀具有与U形夹松动接合的剪刀元件

    公开(公告)号:US5392789A

    公开(公告)日:1995-02-28

    申请号:US140260

    申请日:1993-10-21

    摘要: An endoscopic scissors includes a clevis having a relatively large diameter bore in its first arm and relatively smaller diameter bore in its second arm. A pair of scissor elements having mounting/pivot holes are mounted between the clevis arms. Either the small diameter bore in the second clevis arm or the mounting/pivot hole in the scissor element closest to the second clevis arm is threaded. A stepped diameter axle pin having a threaded portion is inserted with its smaller end entering the larger diameter bore of the first clevis arm. The threaded portion of the axle pin threadably engages either the threaded bore in the second clevis arm or the threaded mounting/pivot hole of the scissor element closest to the second clevis arm. In one embodiment, the bore in the second clevis arm is not threaded and the threaded portion of the axle pin engages only the threaded threaded mounting/pivot hole of the scissor element closest to the second clevis arm. Both ends of the axle pin float in respective clevis arm bores. In another embodiment where the scissor element closest to the second clevis arm is kept stationary, the threaded portion of the axle pin engages the threaded bore in the second clevis arm. The larger end of the axle pin floats in the large diameter bore of the first clevis arm. In a third embodiment, a washer is placed between the second clevis arm and the scissor element closest to it and the axle pin engages the threaded bore in the second clevis arm.

    摘要翻译: 内窥镜剪刀包括在其第一臂中具有相对大直径的孔并且在其第二臂中具有相对较小直径的孔的U形夹。 具有安装/枢转孔的一对剪刀元件安装在U形夹臂之间。 第二U形夹臂中的小直径孔或最靠近第二U形臂的剪刀元件中的安装/枢转孔是螺纹的。 具有螺纹部分的阶梯式直径轴销插入其较小的一端进入第一U形臂的较大直径的孔。 轴销的螺纹部分螺纹地接合第二U形夹臂中的螺纹孔或最靠近第二U形臂的剪刀元件的螺纹安装/枢转孔。 在一个实施例中,第二U形夹臂中的孔没有螺纹,并且轴销的螺纹部分仅与最靠近第二U形臂的剪刀元件的螺纹安装/枢转孔接合。 轴销的两端浮在相应的U形夹臂孔中。 在最靠近第二U形臂的剪刀元件保持静止的另一实施例中,轴销的螺纹部分与第二U形臂中的螺纹孔接合。 轴销的较大端部浮在第一U形夹臂的大直径孔中。 在第三实施例中,垫圈放置在第二U形臂臂和最靠近它的剪刀元件之间,并且轴销与第二U形臂中的螺纹孔接合。