专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5281197A Endoscopic hemostatic agent delivery system 失效
标题翻译：内镜止血剂递送系统
公开(公告)号：US5281197A
公开(公告)日：1994-01-25
申请号：US919893
申请日：1992-07-27
申请人： Juan J. Arias , Thomas O. Bales , David P. Gordon , Constance M. Ryan , Frank A. Scarfone , Kevin W. Smith , David Turkel
发明人： Juan J. Arias , Thomas O. Bales , David P. Gordon , Constance M. Ryan , Frank A. Scarfone , Kevin W. Smith , David Turkel
IPC分类号： A61B17/00 , A61M31/00
CPC分类号： A61M37/0069
摘要： 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.
摘要翻译：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。

IPRDB

热门服务

关于我们

友情链接

联系方式