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    • 43. 发明申请
    • ANGIOPLASTY DILATING GUIDE WIRE
    • ANGIOPLASTY DILATING GUID WIRE
    • WO1989004686A1
    • 1989-06-01
    • PCT/US1988004031
    • 1988-11-11
    • SCIMED LIFE SYSTEMS, INC.
    • SCIMED LIFE SYSTEMS, INC.WILLARD, Lloyd, K.EUTENEUER, Charles, L.
    • A61M29/02
    • A61M25/104A61B2017/22001A61M25/09A61M25/09041A61M2025/0018A61M2025/0063A61M2025/1079G01M3/26
    • A dilating guide wire (12) for use in percutaneous transluminal angioplasty (PTCA) has a very small outside diameter which permits it to be used with a PTCA catheter (100, 101, 105) for treatment of tight stenoses in the coronary arteries that cannot be treated by conventional PTCA catheters alone. The dilating guide wire (12) is small enough to pass through the through lumen (115) of the PTCA cathether and extend beyond the distal tip thereof for predilating the stenosis to permit subsequent crossing and dilation by the PTCA catheter. Means (60, 140) may be provided for selectively imparting an axial force to the balloon (20) of the dilating guide wire to cause axial stretching thereof, thereby reducing its profile and facilitating withdrawal of the balloon of the dilating guide wire back into the PTCA catheter. This may be accomplished through manual actuation of a control knob (65) attached to the core (14), or in another embodiment, automatically through permitted limited movement of the core (132) relative to the outer tubing (130) of the dilating guide wire as the control manifold (140) is moved forward or backward.
    • 用于经皮腔内血管成形术(PTCA)的扩张导丝(12)具有非常小的外径,其允许其与PTCA导管(100,101,105)一起使用,用于治疗冠状动脉中的狭窄狭窄,其不能 仅用传统的PTCA导管治疗。 扩张导丝(12)足够小以穿过PTCA导管的通孔(115)并延伸超过其远端,用于预先狭窄狭窄以允许PTCA导管随后的交叉和扩张。 可以提供装置(60,140),用于选择性地向扩张导丝的球囊(20)施加轴向力以引起其轴向拉伸,从而减小其轮廓并且便于将扩张导丝的球囊撤回到 PTCA导管。 这可以通过手动致动附接到芯(14)的控制旋钮(65)来实现,或者在另一个实施例中,通过芯(132)相对于扩张引导件的外管(130)的允许的有限运动自动地实现 作为控制歧管(140)的导线向前或向后移动。
    • 47. 发明申请
    • STENT LOCATING DEVICE
    • STENT定位装置
    • WO1997032545A1
    • 1997-09-12
    • PCT/US1997003493
    • 1997-03-05
    • SCIMED LIFE SYSTEMS, INC.LAFONTAINE, Daniel, M.EIDENSCHINK, Tracee, E., J.HASTINGS, Roger, N.
    • SCIMED LIFE SYSTEMS, INC.
    • A61F02/06
    • A61F2/95A61B5/05A61B5/06A61B2017/00026A61B2017/0003
    • An apparatus and method for detecting a metallic stent inside a living body wherein the method includes the steps of: (1) providing a stent locator device, (2) providing a metallic stent, (3) inserting the metallic stent into the living body, (4) inserting the stent locator into the living body and (5) locating the stent with the sent locator by detecting an electrical parameter affected by the position of the stent relative to the position of the locating device. The electrical parameter may be detected with a pair of electrodes or a coil mounted to the distal end of the stent locator. The pair of electrodes may be made of electrically conductive ink which may be printed on an intraluminal device. The stent locator may include one or more radio-opaque markers mounted on the distal end such that the position of the stent may be radiographically correlated to the position of the stent locator device. Alternatively, the stent locator may include one or more visual markers mounted on the proximal end such that the position of the stent may be visually correlated to the position of the stent locator device. The stent locator may be in the form of virtually any intraluminal device such as a guide wire, a balloon catheter, an atherectomy catheter, a stent retrieval catheter, or a stent delivery catheter. In addition, the stent may be inserted prior to, subsequent to or simultaneously with the stent locator device.
    • 一种用于检测生物体内的金属支架的装置和方法,其中所述方法包括以下步骤:(1)提供支架定位装置,(2)提供金属支架,(3)将金属支架插入生物体中, (4)将支架定位器插入生物体中,(5)通过检测受到支架相对于定位装置的位置的位置影响的电参数,使定位器与定位装置相对置。 可以用一对电极或安装在支架定位器的远端的线圈来检测电参数。 该对电极可以由导电墨水制成,其可以印刷在管腔内装置上。 支架定位器可以包括安装在远端上的一个或多个无线电不透明标记,使得支架的位置可以与放射线定位器装置的位置进行放射学相关。 或者,支架定位器可以包括安装在近端上的一个或多个视觉标记,使得支架的位置可以与支架定位器装置的位置视觉相关。 支架定位器可以是几乎任何管腔内装置的形式,例如导丝,气囊导管,动脉切除术导管,支架取回导管或支架输送导管。 此外,支架可以在支架定位器装置之前,之后或同时插入。