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    • 7. 发明授权
    • Automatic lumen shut-off
    • 自动流明关闭
    • US5403284A
    • 1995-04-04
    • US186953
    • 1994-01-27
    • James R. Gross
    • James R. Gross
    • A61M25/06A61M39/06A61M39/04A61M5/00
    • A61M25/0606A61M39/06A61M2039/062A61M2039/0673
    • The invention features a needle and a housing having a proximal inner surface and a distal inner seat leading to and defining a lumen, wherein the needle is slidable through the housing to occupy the lumen. The housing contains and is cooperable with a valve shaped so as to sealably fit against the housing distal inner seat, the valve including a hole alignable with the lumen. When the needle slidably occupies the housing, the valve hole, and the lumen, the valve is prevented from sealably fitting against the housing distal inner seat. The housing also contains an outward biasing means biased against the valve. Upon removal of the needle from the housing, the outward biasing means urges the valve sealably against the housing distal inner seat so as to prevent flow of fluid or air through the lumen.
    • 本发明的特征在于一种针头和一个外壳,其具有通向内腔的近端内表面和远侧内座,其中针可滑动通过外壳以占据内腔。 壳体包含并且可与阀形成配合,以便与壳体远侧内座部密封地配合,该阀包括可与内腔对准的孔。 当针可滑动地占据壳体,阀孔和内腔时,防止阀密封地配合到壳体远侧内座。 壳体还包含偏压阀门的向外偏置装置。 当从壳体移除针头时,向外的偏置装置将阀门可密封地推压到壳体远侧内座椅上,以防止流体或空气流过管腔。
    • 8. 发明授权
    • Urodynamic catheter
    • 尿动力导管
    • US5385563A
    • 1995-01-31
    • US120500
    • 1993-09-14
    • James R. Gross
    • James R. Gross
    • A61B5/03A61B19/00A61M25/00A61M25/14A61B5/00
    • A61M25/007A61B5/205A61B2090/064A61B90/39
    • Disclosed is a urodynamic catheter having a fill lumen for filling the bladder with liquid; at least a first pressure-sensing lumen having an opening adapted for being positioned within the bladder for obtaining pressure readings of the bladder; and preferably also a second pressure-sensing lumen having an opening adapted for being positioned within the urethra while the opening of the first pressure-sensing lumen is within the bladder, the opening in the urethra being for obtaining pressure readings of the urethra.Each pressure-sensing lumen has a radio-opaque element fixedly seated therewithin in close proximity to and distal to the opening in the lumen for determining proper placement of the catheter within the patient.
    • 公开了一种具有用于用液体填充膀胱的填充腔的尿动力导管; 至少第一压力感测腔,其具有适于定位在囊内的开口,用于获得膀胱的压力读数; 并且优选地还具有第二压力感应内腔,其具有适于定位在尿道内的开口,同时第一压力感测腔的开口位于膀胱内,尿道中的开口用于获得尿道的压力读数。 每个压力感测管腔具有固定地位于其中的不透射线的元件,其紧邻和远离腔内的开口,用于确定导管在患者体内的适当放置。