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    • 5. 发明授权
    • Method and apparatus for transurethral resection of the prostate
    • 用于经尿道前列腺切除术的方法和装置
    • US6024751A
    • 2000-02-15
    • US837003
    • 1997-04-11
    • Paul H. LovatoDavid Alan GollnickRussell Alex ZinnerDavid P. ThompsonKevin ConnorsMichael Hmelar
    • Paul H. LovatoDavid Alan GollnickRussell Alex ZinnerDavid P. ThompsonKevin ConnorsMichael Hmelar
    • A61B1/015A61B17/00A61B17/32A61B18/20A61M1/00
    • A61B1/015A61B17/32002A61B18/201A61B2017/00274A61B2017/00685A61B2017/320028A61B2018/00547A61B2217/005
    • A method and apparatus for transurethral resection of the prostate, which includes inserting a transurethral incisional device through the patient's urethra, incising off at least one piece of targeted prostatic tissue using the incisional device, inserting a morcellation probe through the patient's urethra, morcellating the excised piece of targeted prostatic tissue with the morcellation probe, and aspirating the morcellated prostatic tissue through the morcellation probe and out of the patient.The morcellation probe of the present invention includes an elongated inner probe tube that defines an aspiration channel therein. The inner probe tube is slidably disposed inside an outer probe tube. The outer probe tube has a first aperture with a first cutting edge for cutting tissue. The inner probe tube has a second aperture or a spiral shaped groove defining a second cutting edge that moves relative to the first cutting edge to cut tissue drawn through the first aperture. The second aperture or groove are in communication with the aspiration channel. A tissue manipulation port can be formed in either the outer or inner probe tubes to overlap with the inner or outer probe tube apertures or the groove to provide continuous aspiration adjacent the first aperture if/when the first aperture is sealed by the inner probe tube.
    • 一种用于经尿道切除前列腺的方法和装置,其包括通过患者的尿道插入经尿道切口装置,使用切口装置切除至少一片目标的前列腺组织,将转移探针插入患者的尿道,将切除的 一些具有morcellation探针的目标前列腺组织,并通过morcellation探针和从患者中吸出去毛细血管前列腺组织。 本发明的切割探针包括在其中限定吸入通道的细长内探针管。 内探针管可滑动地设置在外探针管内。 外探针管具有第一孔,其具有用于切割组织的第一切削刃。 内探针管具有限定相对于第一切削刃移动的第二切削刃的第二孔或螺旋形槽,以切割通过第一孔拉出的组织。 第二孔或凹槽与抽吸通道连通。 如果/当第一孔被内部探针管密封时,组织操作口可以形成在外部或内部探针管中,以与内部探针管或外部探针管孔或沟槽重叠以提供邻近第一孔的连续抽吸。
    • 10. 发明授权
    • Sealed bearing arrangement for universal joint
    • 万向节密封轴承布置
    • US4932923A
    • 1990-06-12
    • US391821
    • 1989-08-10
    • David P. Thompson
    • David P. Thompson
    • F16C33/78F16D3/41
    • F16C33/7809F16D3/41
    • A sealed bearing arrangement for a Cardan type universal joint comprises a bearing cup and a seal assembly which has an elastomeric body and a metal washer of U-shaped cross section. The elastomeric body has an inner flexible, annular seal lip which engages an inside cylindrical surface of the bearing cup and an outer seal bead and an outer flexible, annular seal lip which engage outside surfaces of the bearing cup. The sealed bearing arrangement includes a hardened steel washer inside the bearing cup which is engaged by an end of the metal washer of the seal assembly to protect the inner flexible, annular seal lip against damage or interference by needle bearing rollers inside the bearing cup.
    • 用于万达型万向接头的密封轴承装置包括轴承杯和密封组件,其具有弹性体和U形横截面的金属垫圈。 弹性体具有内部柔性环形密封唇缘,其接合轴承杯的内部圆柱形表面和外部密封凸缘以及与轴承杯的外表面接合的外部柔性环形密封唇缘。 密封的轴承装置包括在轴承杯内部的硬化钢垫圈,该密封件由密封组件的金属垫圈的端部接合,以保护内部柔性环形密封唇免受轴承杯内的滚针轴承辊的损伤或干扰。