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    • 9. 发明授权
    • Endoscopic hemostatic agent delivery system
    • 内镜止血剂递送系统
    • US5281197A
    • 1994-01-25
    • US919893
    • 1992-07-27
    • Juan J. AriasThomas O. BalesDavid P. GordonConstance M. RyanFrank A. ScarfoneKevin W. SmithDavid Turkel
    • Juan J. AriasThomas O. BalesDavid P. GordonConstance M. RyanFrank A. ScarfoneKevin W. SmithDavid Turkel
    • A61B17/00A61M31/00
    • A61M37/0069
    • An endoscopic tool for dispensing units of hemostatic agent broadly comprises a hollow tube which holds a plurality of individual units of the hemostatic agent, a valve at the distal end of the hollow tube which permits the hemostatic agent to pass therethrough but prevents foreign matter from contacting the hemostatic agent while in the tube, a plunger which extends into the hollow tube and contacts a proximal unit of the hemostatic agent, and a mechanism for moving the plunger distally in incremental movements to cause, upon each incremental movement, an individual unit of the hemostatic agent to be pushed through the valve. Typically, the mechanism for moving the plunger and the proximal end of the hollow tube are held in a handle. One mechanism for moving the plunger utilizes a portion of the plunger as a ratchet by forming a plurality of conical elements thereon, and utilizes a switch in the handle which has a V-spring coupled thereto as a pawl for advancing the conical elements. A second mechanism utilizes a regularly shaped notched cutout in the handle as the ratchet, and a vertical protrusion on the plunger which extends through the cutout as an engagement element. The notched cutout provides resilient stops, and the protrusion is shaped to allow it to be forced in a forward direction through each resilient stop and then to sit in another notch.
    • 用于分配止血剂单元的内窥镜工具广泛地包括保持止血剂的多个单独单元的中空管,在中空管的远端处的阀,其允许止血剂通过,但是防止异物接触 止血剂在管中,延伸到中空管中并接触止血剂的近端单元的柱塞,以及用于以增量运动向远侧移动柱塞的机构,以在每次增量运动时使单独的单元 止血剂被推过阀门。 通常,将柱塞和中空管的近端移动的机构保持在手柄中。 用于移动柱塞的一个机构通过在其上形成多个锥形元件而将柱塞的一部分用作棘轮,并且利用手柄中的开关,其中V形弹簧联接到其上作为用于推进锥形元件的棘爪。 第二机构使用手柄中的规则形状的切口切口作为棘轮,并且在柱塞上的垂直突起作为接合元件延伸穿过切口。 切口切口提供弹性止挡,并且突起成形为允许其通过每个弹性止动件沿向前的方向被迫,然后坐在另一个凹口中。
    • 10. 发明授权
    • Coaxial bone marrow biopsy coring and aspirating needle assembly and
method of use thereof
    • 同轴骨髓活检取芯和抽吸针组件及其使用方法
    • US5257632A
    • 1993-11-02
    • US942427
    • 1992-09-09
    • David H. TurkelThomas O. BalesFrank A. ScarfoneMilton L. Jackson, Jr.
    • David H. TurkelThomas O. BalesFrank A. ScarfoneMilton L. Jackson, Jr.
    • A61B10/00A61B10/02
    • A61B10/025A61B2010/0258
    • A bone marrow biopsy needle assembly for obtaining a bone marrow core biopsy and a bone marrow aspirate biopsy in a single procedure includes an outer aspiration sheath which closely surrounds a coaxial inner hollow coring needle, and a trocar which extends through the coring needle. A handle arrangement is provided to allow insertion into the bone of the central trocar, the core biopsy needle and the outer aspiration sheath as an assembly, and to further allow stable manipulation of each component of the system without displacing the outer aspiration sheath. After insertion of the combined system through the cortical bone layer, the trocar is withdrawn. Further pushing and, if desired, twisting of the remaining assembly forces a bone marrow core biopsy into the inner, coring needle. The coring needle is then withdrawn and the bone marrow core biopsy is pushed out in a retrograde manner. An aspiration syringe is then coupled to a luer slip on the aspiration sheath handle, and a liquid sample of marrow aspirate is obtained. Thus, a solid core of bone marrow and liquid marrow aspirate are obtained through a single entry into bone, thereby minimizing bone trauma and patient discomfort.
    • 用于在单个过程中获得骨髓核活检和骨髓抽吸活组织检查的骨髓活检针组件包括紧密围绕同轴内空心取心针的外抽吸鞘和延伸穿过取芯针的套针针。 提供了一种手柄装置,以允许插入到中心套管针,芯活检针和外抽吸鞘的骨中作为组件,并且进一步允许系统的每个部件的稳定操作而不使外抽吸鞘移位。 将组合系统穿过皮质骨层插入后,套管针撤出。 进一步推动,如果需要,剩余组件的扭转将骨髓核心活检进入内部取心针。 然后取出取芯针,并以逆行方式推出骨髓核活检。 然后将抽吸注射器连接到抽吸鞘手柄上的鲁尔滑块,并获得骨髓抽吸液体样本。 因此,通过单次进入骨骼获得骨髓和液体骨髓抽吸物的固体核,从而最小化骨创伤和患者不适。