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公开(公告)号：EP2344061A1
公开(公告)日：2011-07-20
申请号：EP09777891.4
申请日：2009-08-14
发明人： WERNER, Erich
IPC分类号： A61B18/12
CPC分类号： A61B18/12 , A61B18/1206 , A61B18/1233 , A61B2018/0066 , A61B2018/00875
摘要： An electrosurgical HF generator for cutting and/or coagulating biological tissue, having a power supply unit and a generator stage for inducing an HF oscillation in an output filter which comprises a parallel resonant circuit and a series resonant circuit coupled therewith and to which at least one electrode is connected, has an improved efficiency if the series resonant circuit has a resonance frequency which lies above the resonance frequency of the parallel resonant circuit.
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公开(公告)号：EP2337516A2
公开(公告)日：2011-06-29
申请号：EP09777840.1
申请日：2009-08-12
发明人： BELLER, Jürgen , KLEIN, Ralf
CPC分类号： A61B18/1206 , A61B18/1442 , A61B18/16 , A61B2018/124 , A61B2018/165
摘要： The invention relates to cutting or coagulating biological tissue using an electrosurgical HF generator (10) comprising a generator circuit (12) exciting an HF current between an active electrode (30) and at least one neutral electrode (40), wherein undesired tissue heating due to the HF current can be reduced if the electrosurgical HF generator (10) comprises at least one further auxiliary neutral electrode (50, 51, 52) connected in parallel to the neutral electrode (40).
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63.发明公开
公开(公告)号：EP2326272A1
公开(公告)日：2011-06-01
申请号：EP09749529.5
申请日：2009-04-23
发明人： FISCHER, Klaus , SCHÄLLER, Daniel , VOIGTLÄNDER, Matthias , SZYRACH, Mara , SIGLE, Irina , BLOBEL, Lars , ENDERLE, Markus
CPC分类号： A61B18/02 , A61B10/02 , A61B10/04 , A61B18/0218 , A61B2018/0212 , A61B2018/0262
摘要： The invention relates to cryosurgical instrument for obtaining a tissue sample using a probe, wherein the probe comprises a probe head for freezing tissues, a probe shaft for advancing the probe head to the tissue, a feeding device for feeding a fluid into an expansion chamber and a conducting device. The conducting device is connected to the expansion chamber for delivering the expanded fluid out of the expansion chamber. The expansion of the fluid in the expansion chamber chills the probe head such that the tissue freezes to the probe head. Such surgical instruments can also be used according to the invention in thin hollow organs, such as gall bladder or pancreatic ducts, in order to obtain tissue samples. In said area of application, however, certain requirements are placed on the dimensions of the probe that could not be met by conventional probes. The present invention solves said problem in that the delivery device comprises at least one opening at the distal region of the probe, said opening conducting the fluid into an external region outside of the probe. According to the invention, a part of the expanding gas is thereby discharged directly into the hollow organ.
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公开(公告)号：EP1773223B1
公开(公告)日：2011-03-23
申请号：EP05751795.5
申请日：2005-05-19
发明人： KÜHNER, Ralf
IPC分类号： A61B18/00
CPC分类号： A61B18/042
摘要： The invention relates to a device for argon plasma coagulation, whereby working gas is introduced to a tissue for treatment by means of gas introduction devices (20) in a flow direction and the working gas flows out of a distal end of the gas introduction devices. Said device for argon plasma coagulation is further embodied to prevent a contamination of the gas introduction devices and/or the argon plasma coagulation instrument by working gas, bodily gases or bodily fluids. Thus, at least one arrestor device (30) is or may be connected to the gas introduction devices for arresting a gas and/or fluid flow against the flow direction in the gas introduction devices.
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65.发明公开KRYOCHIRURGISCHES GERÄT ZUM BETREIBEN VON KRYOSONDEN, VERFAHREN ZUM BETREIBEN EINER KRYOSONDE 有权冷冻治疗设备用于操作冷冻头，一种用于操作冷冻头
公开(公告)号：EP2288305A1
公开(公告)日：2011-03-02
申请号：EP09761363.2
申请日：2009-05-13
发明人： GEISELHART, Franz , GROSS, Stefan
IPC分类号： A61B18/02
CPC分类号： A61B18/02 , A61B2018/00988 , A61B2018/0262
摘要： The invention relates to a cryosurgical device for operating a first cryoprobe having a pressure-proof return and a second cryoprobe having a non-pressure-proof return. The device can be operated in a first more to operate the first cryoprobe and in a second mode to operate the second cryoprobe. It comprises a control, a fluid source for making a fluid available which can be passed into the cryoprobes to cool them utilizing the Joule Thomson effect, at least two cryoprobe connections, the first cryoprobe being connected to a cryoprobe connection of the cryoprobe connections in the first mode and the second cryoprobe being connected thereto in the second mode, and a pressure adjustment device having at least one proportional valve. The pressure adjustment device is connected to the cryoprobe in such a fashion that it allows the pressure ratio of the supply relative to the return of the cryoprobes in the first and second mode, the control controlling the cooling power of the cryoprobes by adjusting the proportional valve. When the pressure adjustment device is expediently connected, the cryoprobes can be efficiently operated in the first and second mode.
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公开(公告)号：EP2257235A1
公开(公告)日：2010-12-08
申请号：EP09711752.7
申请日：2009-02-11
发明人： GEISELHART, Franz
IPC分类号： A61B18/02
CPC分类号： A61B18/02 , A61B2018/00017 , A61B2018/00023 , A61B2018/0281 , F25B2309/021
摘要： The present invention relates to a cryosurgical instrument, comprising a cryoprobe, having a line system through which a compressed cooling fluid flows, particularly a cooling gas, for cooling at least part of the cryoprobe, wherein the line system has an expansion channel having a line cross-section that is successively enlarged in the flow direction across a predetermined length such that the compressed cooling gas successively relaxes on the flow path thereof through the expansion channel beyond a predetermined length while simultaneously cooling off, at least partially.
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公开(公告)号：EP1868520B1
公开(公告)日：2010-09-01
申请号：EP06707558.0
申请日：2006-03-14
CPC分类号： A61B18/042 , A61B17/00234 , A61B17/3203 , A61B17/32056 , A61B17/3478 , A61B18/1482 , A61B2017/00269 , A61B2017/22074 , A61B2018/00589 , A61B2018/00601 , A61B2018/1407
摘要： The invention relates to an endoscopic surgical instrument, in particular for endoscopic mucosa resection. Said endoscopic surgical instrument comprises a device (1) for guiding at least one fluid, in particular, for injection and/or dissection, and a device (2) for high-frequency surgery, which is combined with a device for guiding the at least one fluid for uniform handling.
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公开(公告)号：EP1740106B1
公开(公告)日：2009-09-23
申请号：EP05740230.7
申请日：2005-04-15
发明人： KLEIN, Ralf , QUECK, Jochen , FISCHER, Klaus
IPC分类号： A61B17/32
CPC分类号： A61B17/3203 , A61B18/1485 , A61B2017/0046 , A61B2017/00477
摘要： Conventional applicators for water jet surgery comprise a handle, a pressure line for supplying a working fluid from a pressure source and a nozzle at the end of a pressure line for producing a jet of fluid with defined properties. The aim of the operations is to simplify work carried out during operations and reduce costs. According to the invention, a set of moulded parts is provided. Said parts have different sizes and/or shapes, can be reversibly connected to the handle and comprise guide devices used to guide the elastically deformable pressure line from the handle to the nozzle in a manner which is predetermined by the respective moulded part.
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公开(公告)号：EP2077785A1
公开(公告)日：2009-07-15
申请号：EP07818469.4
申请日：2007-09-26
发明人： HAFNER, Dieter
CPC分类号： A61B17/29 , A61B17/295 , A61B18/1445 , A61B18/1447 , A61B18/1482 , A61B2017/00026 , A61B2017/0003 , A61B2017/00115 , A61B2017/00128 , A61B2017/0023 , A61B2017/00353 , A61B2017/0046 , A61B2017/292 , A61B2017/2925 , A61B2017/2934 , A61B2017/2939 , A61B2017/2944 , A61B2017/2947 , A61B2018/1412 , A61B2018/1455 , A61B2090/0811 , A61B2090/0813
摘要： The invention relates to tubular shaft instruments, which are provided with a handle, a tubular shaft and a tool head. The tool head usually has two mouth parts, which can be displaced in relation to one another for gripping and fixing tissue. The disadvantages of the articulations used for this purpose are that they block access to the mouth parts from the inside of the tubular shaft to the outside, that they are not sufficiently stable and can only be operated with low leverage. The invention thus discloses a slotted guide system for forming the articulation, said system having a virtual fulcrum outside the tubular shaft instrument. The invention not only eradicates the aforementioned problems but also simplifies the seizure of tissue.
摘要翻译： 本发明涉及管状轴器械，其具有手柄，管状轴和工具头。 工具头通常具有两个嘴部件，它们可以相对于彼此移动以抓取和固定组织。 用于此目的的铰接件的缺点在于它们阻碍了从管状轴内部到外部的通向嘴部的通路，它们不够稳定并且只能以低杠杆操作。 因此，本发明公开了一种用于形成关节的开槽导向系统，所述系统在管状轴仪器外部具有虚拟支点。 本发明不仅消除了上述问题，而且简化了组织的痉挛。
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公开(公告)号：EP2077773A2
公开(公告)日：2009-07-15
申请号：EP07818471.0
申请日：2007-09-26
发明人： GEISELHART, Franz
CPC分类号： A61B17/29 , A61B17/295 , A61B18/1445 , A61B18/1447 , A61B18/1482 , A61B2017/00026 , A61B2017/0003 , A61B2017/00115 , A61B2017/00128 , A61B2017/0023 , A61B2017/00353 , A61B2017/0046 , A61B2017/292 , A61B2017/2925 , A61B2017/2934 , A61B2017/2939 , A61B2017/2944 , A61B2017/2947 , A61B2018/1412 , A61B2018/1455 , A61B2090/0811 , A61B2090/0813
摘要： In medical tubular-shaft instruments for gripping and cutting tissue, a safe mode of operation is absolutely essential. It is particularly important that the operating physician be provided at all times with sufficient information allowing him to determine whether the tissue that was to be severed has been successfully severed. According to the invention, electrodes are provided on the instrument, as a result of which a mechanical contact between a cutting blade (51) and an associated cutting surface (12) can be determined electrically.
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