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    • 4. 发明公开
    • Surgical penetration instrument
    • 手术穿刺仪器
    • EP0724864A1
    • 1996-08-07
    • EP96300668.9
    • 1996-01-31
    • ETHICON ENDO-SURGERY, INC.
    • Schwemberger, Richard F.Privitera, SalvatoreHughes, Robert
    • A61B17/34
    • A61B17/3417A61B90/37A61B2017/3456A61B2017/346A61B2090/038
    • A surgical penetration instrument is disclosed. It has an elongated shaft and a penetrating tip extending from the distal end of the shaft. A blade extends outwardly from the penetrating tip. The blade is transparent. When the penetrating tip is transparent, the tip not only facilitates penetration through bodily tissue but also acts as an imaging element in conjunction with an endoscope extending through the shaft of the instrument to simultaneously visualize the surgical field during penetration. Significantly, unlike a conventional metallic blade, the transparent blade will not obstruct the field of view as the instrument is advanced. When the penetrating tip is plastic, and the blade is composed of a transparent plastic, the blade can be joined to the tip using conventional plastic processing methods such as injection molding, thus reducing manufacturing costs incurred if a metallic blade were used. Also disclosed is a surgical penetration instrument with a plastic penetrating tip and a protective cap fitting over and enclosing a portion of the tip to prevent or lessen the possibility of breaking, cracking or otherwise damaging the tip.
    • 公开了一种手术穿透仪器。 它具有细长的轴和从轴的远端延伸的穿透尖端。 刀片从穿透尖端向外延伸。 刀片是透明的。 当穿透尖端是透明的时,尖端不仅有助于穿透身体组织,而且还用作与穿过仪器轴延伸的内窥镜结合的成像元件,以在穿透期间同时使外科视野显现。 重要的是,与传统的金属刀片不同,当仪器前进时,透明刀片不会阻碍视场。 当穿透尖端是塑料,并且叶片由透明塑料构成时,叶片可以使用诸如注射成型的常规塑料加工方法接合到尖端,从而降低了使用金属刀片时产生的制造成本。 还公开了一种手术穿透仪器,其具有塑料穿透尖端和保护帽,其配合在顶部的一部分上并包围该尖端以防止或减轻破裂,破裂或以其他方式损伤尖端的可能性。