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    • 3. 发明申请
    • MEDICAL INSTRUMENT WITH CONTROLLED TORQUE TRANSMISSION
    • 具有控制扭矩传输的医用仪器
    • US20140378868A1
    • 2014-12-25
    • US14481454
    • 2014-09-09
    • BOSTON SCIENTIFIC SCIMED INC.
    • John A. GriegoPatrice A. Weststrate
    • A61M25/09
    • A61M25/09033A61M25/09A61M2025/09108A61M2025/09175Y10T29/49
    • A medical instrument such as a guidewire that is designed to have controlled torque transmission along its length. Specially treated areas are placed in selected and equal areas along the entire length of the elongated shaft of the medical instrument, and are separated from one another by untreated areas. This process ensures that any torque is transmitted distally, in a smooth manner, regardless of the guidewire position, thus resulting in a substantial reduction in whipping. In one embodiment, a stainless steel guidewire is utilized, and is subjected to annealing heat treatment in selected areas. This annealing process creates a mandrel that has repeated temper properties along its length. Torque applied at one end of this mandrel is transmitted to the opposite end in an even and controlled manner, even when the mandrel is formed into a loop.
    • 一种医疗器械,例如导丝,其设计成沿其长度具有受控的扭矩传递。 特殊处理区域沿着医疗器械的细长轴的整个长度放置在选定的和相等的区域中,并且通过未处理的区域彼此分离。 该过程确保任何扭矩以平滑的方式向远侧传递,而不管导丝位置如何,从而导致鞭打的显着减少。 在一个实施例中,使用不锈钢导丝,并在选定的区域进行退火热处理。 该退火工艺产生了沿其长度具有反复回火特性的心轴。 即使当心轴形成环时,施加在该心轴的一端的扭矩以均匀和受控的方式传递到相对端。
    • 7. 发明授权
    • Multiple clip deployment magazine
    • US09763669B2
    • 2017-09-19
    • US14701157
    • 2015-04-30
    • Boston Scientific Scimed, Inc.
    • John A. Griego
    • A61B17/122A61B17/128A61B17/08A61B17/04
    • A61B17/1285A61B17/068A61B17/083A61B17/122A61B17/1227A61B2017/0488A61B2017/2937Y10T29/53491
    • An apparatus for deployment of multiple hemostatic clips, comprises a shaft connected to a handle and a control linkage operatively connected to the handle in combination with a magazine disposed at a distal end of the shaft, the magazine containing a plurality of clips arranged in a chain rotatable within the magazine, wherein a proximal-most one of the clips is coupled to the control linkage, a distal portion of the magazine being contoured to permit opening of a distal-most one of the clips during a distal stroke of the control linkage, and to assist closing and locking of the distal-most clip during a proximal stroke of the control linkage, the magazine including an expanded chamber sized to allow opening in any rotational orientation of a next clip located immediately proximal to the distal-most clip to a degree sufficient to disengage the distal-most clip. A method for deploying multiple hemostatic clips, comprises positioning a distal end of a magazine containing a clip chain over selected target tissue and actuating a control link of the magazine in a distal stroke to open and distally translate a distal-most clip of the clip chain in combination with orienting the open distal-most clip in a desired orientation to grasp the target tissue and actuating the control link in a proximal stroke to close and lock the distal-most clip over the target tissue. The control link is further actuated in the proximal stroke to move a next clip immediately proximal to the distal-most clip into an expanded portion of the magazine sized to allow the next clip to open to a degree sufficient to release the distal-most clip regardless of a circumferential orientation of the next clip.