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公开(公告)号：US20230210548A1
公开(公告)日：2023-07-06
申请号：US18014800
申请日：2021-07-05
发明人： Janosz Schneider , Jochen Stefan , Daniel Kärcher , Robin Merz , Sven Axel Grüner , Martin Blocher , Sven Schneider , Tobias Unger , Dominik Längle , Judith Holzer , Sebastian Wagner
IPC分类号： A61B17/29
CPC分类号： A61B17/2909 , A61B2017/2912 , A61B2017/0046
摘要： The invention relates to a medical instrument having an elongated shaft, a movable tool at a distal end of the shaft, a handle with a movable grip part at a proximal end of the shaft, and a force transmission element which can be moved in the longitudinal direction of the instrument and is operatively connected to the movable grip part and to the tool such that an actuation of the movable grip part is converted into a movement of the tool. The instrument has a spring assembly that is arranged on the handle and has at least one leg spring, which has at least one winding and two legs, and a pin, wherein the at least one winding extends about the pin. When the movable grip part is actuated, a force is applied to at least one of the legs of the leg spring, said force reducing the friction between the winding and the pin such that the leg spring can be rotated about the pin and the force transmission element and the tool can be moved. When a force is transmitted from the tool to the force transmission element in the longitudinal direction thereof, the leg spring cannot be rotated about the pin such that the force transmission element and the tool cannot be moved.
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公开(公告)号：US11925375B2
公开(公告)日：2024-03-12
申请号：US18014800
申请日：2021-07-05
发明人： Janosz Schneider , Jochen Stefan , Daniel Kärcher , Robin Merz , Sven Axel Grüner , Martin Blocher , Sven Schneider , Tobias Unger , Dominik Längle , Judith Holzer , Sebastian Wagner
CPC分类号： A61B17/2909 , A61B2017/0046 , A61B2017/00862 , A61B2017/2912 , A61B2017/292 , A61B2017/2946
摘要： The invention relates to a medical instrument having an elongated shaft, a movable tool at a distal end of the shaft, a handle with a movable grip part at a proximal end of the shaft, and a force transmission element which can be moved in the longitudinal direction of the instrument and is operatively connected to the movable grip part and to the tool such that an actuation of the movable grip part is converted into a movement of the tool. The instrument has a spring assembly that is arranged on the handle and has at least one leg spring, which has at least one winding and two legs, and a pin, wherein the at least one winding extends about the pin. When the movable grip part is actuated, a force is applied to at least one of the legs of the leg spring, said force reducing the friction between the winding and the pin such that the leg spring can be rotated about the pin and the force transmission element and the tool can be moved. When a force is transmitted from the tool to the force transmission element in the longitudinal direction thereof, the leg spring cannot be rotated about the pin such that the force transmission element and the tool cannot be moved.
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公开(公告)号：US10004523B2
公开(公告)日：2018-06-26
申请号：US14185622
申请日：2014-02-20
发明人： Sven Schneider , Tobias Unger
CPC分类号： A61B17/29 , A61B17/00 , A61B17/3201 , A61B18/1445 , A61B2017/00473 , A61B2017/00477 , A61B2017/2901 , A61B2017/2902 , A61B2017/292 , A61B2017/2931 , A61B2018/146 , A61B2090/0813
摘要： A shaft for a rigid endoscopic instrument includes an elongate outer shaft and an elongate transmission element that can be arranged movably inside the outer shaft, wherein the outer shaft includes a proximal portion and a distal portion, which can be connected releasably to each other. The invention also relates to a rigid endoscopic instrument having such a shaft.
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公开(公告)号：US20220369903A1
公开(公告)日：2022-11-24
申请号：US17747937
申请日：2022-05-18
发明人： Janosz Schneider , Daniel Kärcher , Robin Merz , Sven Schneider , Tobias Unger , Dominik Längle , Judith Holzer
摘要： An endoscopic instrument is disclosed that includes an elongate shaft and an instrument insert releasably connected to a distal end portion of the shaft, the distal end portion of the shaft being in the form of a sleeve and a proximal end region of a base of the instrument insert being in the form of a coupling shaft, or the distal end portion of the shaft being in the form of a coupling shaft and a proximal end region of a base of the instrument insert being in the form of a sleeve, with the coupling shaft being releasably held in the sleeve and the sleeve and/or the coupling shaft at least in portions having a cross-sectional profile which is reversibly changeable for detaching the coupling shaft from the sleeve. The invention also relates to a shaft for an endoscopic instrument, and to an instrument insert for an endoscopic instrument.
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公开(公告)号：US20220192772A1
公开(公告)日：2022-06-23
申请号：US17555878
申请日：2021-12-20
发明人： Martin Blocher , Sven Axel Grüner , Judith Holzer , Daniel Kärcher , Dominik Längle , Robin Merz , Janosz Schneider , Sven Schneider , Jochen Stefan , Tobias Unger
摘要： A manipulation device (14) for a microinvasive medical instrument (10) comprises a first grip member (22) and a second grip member (40), that are movable relative to each other, an irrigation port (90) for receiving an irrigation liquid for cleaning the manipulation device (14) between two uses, and an irrigation channel (92, 94, 96, 98) that connects the irrigation port (90) to one or more outlets (93, 95, 33, 65). The irrigation channel (92, 94, 96, 98) is arranged in the first grip member (22).
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公开(公告)号：US10548577B2
公开(公告)日：2020-02-04
申请号：US13865532
申请日：2013-04-18
发明人： Robin Merz , Sven Schneider , Jochen Stefan
IPC分类号： A61B17/00 , A61B17/29 , F16H21/44 , A61B18/14 , A61B17/3201 , A61B17/295 , A61B18/00
摘要： A handling device for a medical instrument includes a main body with a coupling for releasable mechanical connection to a proximal end of an outer shaft, a first actuation device movable relative to the main body, a second actuation device movable relative to the main body, a first coupling device coupling the first actuation device to a first transfer device for transferring at least a force or a torque, and a second coupling device coupling the second actuation device to a second transfer device for transferring at least a force or a torque. The coupling devices each have a decoupling position, in which the associated actuation device is decoupled from the associated transfer device. The decoupling positions of both coupling devices can only be reached when the outer shaft is not connected to the coupling on the main body in the manner provided for use of the medical instrument.
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