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    • 2. 发明授权
    • Guidewire threader
    • 导丝穿线机
    • US5978699A
    • 1999-11-02
    • US786607
    • 1997-01-21
    • Jan FehseEugen HofmannRichard S. KusleikaRichard L. Goodin
    • Jan FehseEugen HofmannRichard S. KusleikaRichard L. Goodin
    • A61M25/01A61B5/00A61M25/00A61M25/02A61M25/09
    • A61M25/09041
    • A guidewire threader to facilitate insertion of the proximal end of a guidewire into the distal end of a catheter including two clamping pieces each of which has the shape of a lever having two arms and are hinged to each other for pivoting about a common axis between a closed clamp position and an open release position. A spring maintains clamping surfaces, each of which is provided on one arm of each clamping piece, positively in contact with each other in the clamp position. The clamping surfaces in their condition in contact with each other define a passage oriented roughly parallel to the common pivot axis open at both ends, the passage containing a section having an interior dimension corresponding to the outer diameter of the catheter and which is flared funnel-shaped at both of its ends. In the release position, the clamping surfaces open the passage in the lateral direction for removal of the guidewire.
    • 导丝穿线器,以便于将导丝的近端插入导管的远端,包括两个夹紧件,每个夹紧件具有杠杆的形状,该杠杆具有两个臂并彼此铰接以围绕公共轴线枢转 闭合夹紧位置和打开释放位置。 弹簧保持夹紧表面,每个夹紧表面设置在每个夹紧件的一个臂上,在夹紧位置上彼此接触。 在彼此接触的状态下的夹紧表面限定了大致平行于在两端敞开的公共枢转轴线的通道,该通道包含具有对应于导管的外径的内部尺寸的部分, 形状在两端。 在释放位置,夹紧表面沿横向打开通道以移除导丝。
    • 9. 发明授权
    • Single plunger inflation device for angioplasty catheter
    • 用于血管成形术导管的单个柱塞充气装置
    • US4723938A
    • 1988-02-09
    • US945965
    • 1986-12-24
    • Richard L. GoodinMark A. Rydell
    • Richard L. GoodinMark A. Rydell
    • A61F2/958A61M29/00
    • A61M25/10182A61M25/1018A61M25/104
    • An inflation/deflation device for an angioplasty balloon catheter which permits quick inflation to an approximate working pressure followed by a fine but slower adjustment to a final desired pressure. The device includes a housing containing a syringe of the type having a cylindrical chamber containing a piston. A specially designed plunger extends from the proximal end of the housing whereby the initial approxiate pressure can be achieved by the hand-squeezing of the plunger and a slight rotation of that plunger is used to maintain the plunger in a locked disposition. An internal shaft is disposed within the tubular plunger and its distal end is secured to the syringe's piston. The internal shaft includes a threaded segment on its exterior surface engaging a correspondingly threaded surface on the interior of the plunger such that rotation of the shaft relative to the plunger causes axial movement of the piston within the syringe.
    • 一种用于血管成形术球囊导管的充气/放气装置,其允许快速充气至近似工作压力,然后对最终所需压力进行微调但较慢的调节。 该装置包括壳体,该壳体具有包含活塞的圆柱形腔的类型的注射器。 特别设计的柱塞从壳体的近端延伸,由此可以通过手动挤压柱塞来实现初始的适应压力,并且使用该柱塞的轻微旋转来将柱塞保持在锁定配置中。 内轴设置在管状柱塞内,其远端固定到注射器的活塞上。 内轴包括在其外表面上的螺纹段,其接合在柱塞内部上的相应螺纹表面,使得轴相对于柱塞的旋转导致活塞在注射器内的轴向运动。