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    • 23. 发明授权
    • Hand-held pneumatic power assisted syringe
    • 手持气动辅助注射器
    • US4861340A
    • 1989-08-29
    • US258396
    • 1988-10-17
    • Kevin W. SmithCharles R. Slater
    • Kevin W. SmithCharles R. Slater
    • A61M5/20
    • A61M5/2053
    • A hand-held manually operable-pneumatic power assisted syringe serves for injection of fluids. The syringe includes a barrel-shaped housing having a piston slidably mounted therein between the distal and proximal ends of the housing and dividing the housing into a fluid chamber at the distal end and a gas chamber at the proximal end. A nozzle is mounted on the distal end of the housing and is provided with a discharge passageway for discharging fluid from the fluid chamber as the piston is displaced toward the distal end. A piston push rod extends from the piston and is slidable through an end cap mounted on the proximal end of the housing with the push rod serving to displace the piston in the distal direction. The push rod is hollow and has a first passageway at a location adjacent the piston for communication with the gas chamber and a second passageway at a location exterior of the housing for communication with a source of pressurized gas to thereby fill the gas chamber with pressurized gas. A valve assembly is carried by the push rod and includes a bobbin slidably mounted within the push rod between a normal valve closed position for blocking the second passageway to a valve open position for permitting gas to flow through the second passageway into the push rod and then to the gas chamber.
    • 手持式手动气动动力辅助注射器用于注射流体。 注射器包括一个桶形壳体,其具有可滑动地安装在壳体的远端和近端之间的活塞,并且将壳体分成在远端处的流体室和在近端的气体室。 喷嘴安装在壳体的远端,并且设置有排出通道,用于当活塞向远端移动时,从流体室排出流体。 活塞推杆从活塞延伸并且可滑动通过安装在壳体的近端上的端盖,推杆用于沿远端方向移动活塞。 推杆是中空的,并且在与活塞相邻的位置处具有第一通道,用于与气体室连通,并且在壳体外部的位置处的第二通道用于与加压气体源连通,从而用加压气体填充气体室 。 阀组件由推杆承载,并且包括可滑动地安装在推杆内的正常阀关闭位置之间的阀芯,用于将第二通道阻塞到阀打开位置,以允许气体通过第二通道流入推杆,然后 到气室。
    • 26. 发明授权
    • Spring scissor blade
    • 弹簧剪刀
    • US08128649B2
    • 2012-03-06
    • US12335656
    • 2008-12-16
    • Charles R. Slater
    • Charles R. Slater
    • A61B17/28A61B17/29
    • A61B17/320016A61B17/3201
    • An endoscopic scissor instrument includes an elongate hollow member, an actuator that moves axially through the hollow member, and first and second scissor blades with respective cutting surfaces. At least one of the scissor blades is rotatably coupled to the hollow member adjacent its distal end. At least one of the scissor blades includes a base supporting a resilient leaf-spring portion that includes a respective cutting edge. The resilient leaf-spring portion extends from the base in a cantilevered arrangement and generates a spring force acting on the respective cutting edge such that in a loaded state there is an automatic preload force imparted between the cutting edges of the scissor blades to maintain a consistent and continuous mating force between the two opposed sharpened cutting edges preferably over the complete range of rotational movement of the scissor blades.
    • 内窥镜剪刀器具包括细长的中空构件,轴向移动穿过中空构件的致动器以及具有相应切割表面的第一和第二剪刀片。 至少一个剪刀叶片可靠地连接到中空构件的远端。 至少一个剪刀片包括支撑包括相应切割刃的弹性片弹簧部分的底座。 弹性片弹簧部分从基部以悬臂布置的方式延伸并产生作用在相应切削刃上的弹簧力,使得在加载状态下,在剪刀叶片的切割刃之间施加自动预加载力以保持一致 并且两个相对的锋利切削刃之间的连续配合力优选地在剪刀叶片的完全旋转运动范围内。
    • 27. 发明授权
    • Bipolar endoscopic surgical scissor blades and instrument incorporating the same
    • 双极内窥镜手术剪刀刀片和并入其中的仪器
    • US08062292B1
    • 2011-11-22
    • US09484247
    • 2000-01-18
    • Charles R. Slater
    • Charles R. Slater
    • A61B18/14
    • A61B18/14A61B18/1445A61B18/1815A61B2018/00083A61B2018/00107A61B2018/00178A61B2018/126A61B2018/1412A61B2018/146A61B2018/1861
    • Endoscopic bipolar scissor blades are formed in a laminate assembly of an electrically conductive electrode, an electrically insulating material, and a metal shearing surface which is electrically insulated and physically spaced from the electrode by the insulating material which is disposed therebetween. In one embodiment, the electrode is a metal blade, while the insulating material is a ceramic which is fixed to the metal blade, and the metal shearing surface which also provides the cutting edge is of a metal material which is fixed to the ceramic. In a second embodiment, the insulating material is a molded ceramic blade, with the electrode and the metal shearing surface layer metalized or otherwise fixed to the ceramic blade. In a third embodiment, the electrode is metalized on a thin layer insulating material which is fixed onto a metallic blade. In a fourth embodiment, metallic shearing and electrode layers are laminated to opposite sides of a fiberglass material. In all embodiments, the metal cutting edges and surfaces are insulated from the electrodes, and no short circuit can form between the electrodes even though the cutting edges and shearing surfaces are metal.
    • 内窥镜双极剪刀刀片形成在导电电极,电绝缘材料和金属剪切表面的层压组件中,电绝缘材料和金属剪切表面通过设置在它们之间的绝缘材料与电极电绝缘和物理间隔开。 在一个实施例中,电极是金属刀片,而绝缘材料是固定到金属刀片上的陶瓷,并且还提供切削刃的金属剪切表面是固定在陶瓷上的金属材料。 在第二实施例中,绝缘材料是模制陶瓷刀片,其中电极和金属剪切表面层被金属化或以其他方式固定到陶瓷刀片。 在第三实施例中,电极被金属化在固定在金属刀片上的薄层绝缘材料上。 在第四实施例中,将金属剪切和电极层层压到玻璃纤维材料的相对侧上。 在所有实施例中,金属切割边缘和表面与电极绝缘,并且即使切割边缘和剪切表面是金属,也不会在电极之间形成短路。
    • 29. 发明申请
    • Spring scissor blade
    • 弹簧剪刀
    • US20100152757A1
    • 2010-06-17
    • US12335656
    • 2008-12-16
    • Charles R. Slater
    • Charles R. Slater
    • A61B17/3201
    • A61B17/320016A61B17/3201
    • An endoscopic scissor instrument includes an elongate hollow member having a proximal end and a distal end, an actuator that moves axially through the hollow member, and first and second scissor blades with respective cutting surfaces. At least one of the first and second scissor blades are rotatably coupled to the hollow member adjacent its distal end. At least one of the first and second scissor blades includes a base supporting a resilient leaf-spring portion that includes a respective cutting edge. The resilient leaf-spring portion extends from the base in a cantilevered arrangement along the length of the leaf-spring portion. The cantilevered arrangement of said leaf-spring portion generates a spring force acting on said respective cutting edge such that in a loaded state there is an automatic preload force imparted between the cutting edges of the scissor blades to maintain a consistent and continuous mating force between the two opposed sharpened cutting edges preferably over the complete range of rotational movement of the scissor blades.
    • 内窥镜剪刀器具包括具有近端和远端的细长中空构件,轴向移动穿过中空构件的致动器以及具有相应切割表面的第一和第二剪刀片。 所述第一和第二剪刀中的至少一个与所述中空构件相邻地远离其可旋转地联接。 第一和第二剪刀中的至少一个包括支撑包括相应切削刃的弹性片弹簧部的底座。 弹性片弹簧部分沿着板簧部分的长度以悬臂布置从基座延伸。 所述叶片弹簧部分的悬臂布置产生作用在所述相应切削刃上的弹簧力,使得在负载状态下,在剪刀叶片的切割刃之间施加自动预加载力,以在剪切刀片的切割刃之间保持一致且持续的匹配力 两个相对的锋利的切削刃优选地在剪刀叶片的完全旋转运动范围内。