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1. 发明申请

WO2008063636A2 MRI IMAGEABLE ASSEMBLY 审中-公开
标题翻译： MRI成像组件
公开(公告)号：WO2008063636A2
公开(公告)日：2008-05-29
申请号：PCT/US2007024249
申请日：2007-11-20
申请人： SENORX INC , LUBOCK PAUL , QUICK RICHARD L , BROADAWAY ETHAN
发明人： LUBOCK PAUL , QUICK RICHARD L , BROADAWAY ETHAN
IPC分类号： A61B19/00
CPC分类号： A61B17/3468 , A61B5/055 , A61B17/3498 , A61B90/39 , A61B2017/00477 , A61B2090/062 , A61B2090/3908 , A61B2090/3954 , A61B2090/3987
摘要： A marker delivery device is described which has an obturator with an elongated shaft, an inner lumen, a proximal end, and a substantially sealed distal end. One or more tissue markers are deployed within the inner lumen of the elongated shaft of the obturator. Preferably, the tissue marker(s) is disposed within an inner lumen of a marker delivery tube which is disposed within the inner lumen of the elongated shaft of the obturator. The marker delivery tube has an opening for discharging the tissue markers into a body (e.g. biopsy) cavity. The distal tip of the marker delivery tube is configured to penetrate the substantially sealed distal end of the obturator so that tissue markers can be delivered while the obturator is in place within the body. Preferably, the obturator includes a detectable element capable of producing a relatively significant image signature during MRI.
摘要翻译：描述了一种标记输送装置，其具有带有细长轴，内腔，近端和基本上密封的远端的闭孔器。一个或多个组织标记部署在闭孔器的细长轴的内腔内。优选地，组织标记物设置在设置在闭孔器的细长轴的内腔内的标记物输送管的内腔内。标记物输送管具有用于将组织标记物排放到体内（例如活检）腔的开口。标记物输送管的远端构造成穿透填塞物的基本上密封的远端，使得组织标记物可以在囊腔在体内就位的同时被输送。优选地，闭孔器包括能够在MRI期间产生相对显着的图像特征的可检测元件。

2. 发明申请

WO2006017400A3 BIOPSY DEVICE WITH SELECTABLE TISSUE RECEIVING APERTURE ORIENTATION AND SITE ILLUMINATION 审中-公开
标题翻译：具有选择性组织的生物装置接收孔径方位和场地照明
公开(公告)号：WO2006017400A3
公开(公告)日：2006-05-18
申请号：PCT/US2005027071
申请日：2005-07-29
申请人： SENORX INC , SHABAZ MARTIN V , QUICK RICHARD L , LOUW FRANK R , LUBOCK PAUL , SAFABASH JASON H
发明人： SHABAZ MARTIN V , QUICK RICHARD L , LOUW FRANK R , LUBOCK PAUL , SAFABASH JASON H
IPC分类号： A61B10/00 , A61B10/02 , A61B17/00 , A61B17/32 , A61B17/34
CPC分类号： A61B10/0275 , A61B10/0266 , A61B10/0283 , A61B17/32002 , A61B17/3417 , A61B90/30 , A61B2010/0208 , A61B2010/0225 , A61B2017/00473 , A61B2017/00486 , A61B2017/3405 , A61B2090/3908 , A61B2090/3987
摘要： The invention is directed to a system and device for separating and collecting a tissue specimen from a target site within a patient. The device includes a probe component (11) with an elongated tubular section (15), a penetrating distal tip (16) and a tissue receiving aperture (17) in the distal end of the tubular section proximal to the distal tip, and a tissue cutting member (20) which is slidably disposed within the probe member to cut a tissue specimen drawn into the interior of the device through the aperture by applying a vacuum to the inner lumen of the tissue cutting member. The device also has a driver component (12) to which the probe component is releasably secured. The driver has a drive member (22,23) for adjusting the orientation of the tubular section and thus the aperture therein and one or more drive members (30) for moving the tissue cutting member within the tubular section to sever a tissue specimen from tissue extending into the interior of the tubular section through the aperture. The motion imparted to the tissue cutter is at least longitudinal and preferably is also oscillation and/or rotational to effectively separate a tissue specimen from tissue extending through the aperture in the tubular section.
摘要翻译：本发明涉及一种用于从患者内的目标部位分离和收集组织标本的系统和装置。该装置包括具有细长管状部分（15）的探针部件（11），远侧末端的管状部分的远端中的穿透远侧末端（16）和组织接收孔（17），以及组织切割构件（20），其可滑动地设置在所述探针构件内，以通过对所述组织切割构件的内腔施加真空来切割通过所述孔被拉入所述装置的内部的组织样本。该装置还具有驱动器部件（12），探针部件可释放地固定到该部件上。驱动器具有用于调节管状部分的取向并因此调节其中的孔的驱动构件（22,23）和一个或多个驱动构件（30），用于移动管状区段内的组织切割构件以从组织切断组织样本通过孔延伸到管状部分的内部。赋予组织切割器的运动至少是纵向的，并且优选地也是振动和/或旋转以有效地将组织样本与延伸穿过管状部分中的孔的组织分离。

3. 发明申请

WO2006017400A8 BIOPSY DEVICE WITH SELECTABLE TISSUE RECEIVING APERTURE ORIENTATION AND SITE ILLUMINATION 审中-公开
标题翻译：具有选择性组织的生物装置接收孔径方位和场地照明
公开(公告)号：WO2006017400A8
公开(公告)日：2006-10-05
申请号：PCT/US2005027071
申请日：2005-07-29
申请人： SENORX INC , SHABAZ MARTIN V , QUICK RICHARD L , LOUW FRANK R , LUBOCK PAUL , SAFABASH JASON H
发明人： SHABAZ MARTIN V , QUICK RICHARD L , LOUW FRANK R , LUBOCK PAUL , SAFABASH JASON H
IPC分类号： A61B10/00 , A61B10/02 , A61B17/00 , A61B17/32 , A61B17/34
CPC分类号： A61B10/0275 , A61B10/0266 , A61B10/0283 , A61B17/32002 , A61B17/3417 , A61B90/30 , A61B2010/0208 , A61B2010/0225 , A61B2017/00473 , A61B2017/00486 , A61B2017/3405 , A61B2090/3908 , A61B2090/3987
摘要： The invention is directed to a system and device for separating and collecting a tissue specimen from a patient target site. The device includes a probe component (11) with an elongated tubular section (15), a penetrating distal tip (16) and a tissue receiving aperture (17) in the distal end of the tubular section proximal to the distal tip, and a tissue cutting member (20) which is slidably disposed within the probe member to cut a tissue specimen drawn into the interior of the device through the aperture by applying a vacuum to the inner lumen of the tissue cutting member. The device has a driver component (12) to which the probe component is releasably secured. The driver has a drive member (22,23) for adjusting the orientation of the tubular section and one or more drive members (30) for moving the tissue cutting member within the tubular section to sever a tissue specimen. The motion imparted to the tissue cutter is at least longitudinal and preferably is also oscillation and/or rotational.
摘要翻译：本发明涉及一种用于从患者靶位置分离和收集组织标本的系统和装置。该装置包括具有细长管状部分（15）的探针部件（11），远侧末端的管状部分的远端中的穿透远端（16）和组织接收孔（17），以及组织切割构件（20），其可滑动地设置在所述探针构件内，以通过对所述组织切割构件的内腔施加真空来切割通过所述孔被拉入所述装置的内部的组织样本。该装置具有驱动器部件（12），探头部件可释放地固定到该部件上。驱动器具有用于调节管状部分的取向的驱动构件（22,23）和用于移动管状部分内的组织切割构件以切断组织样本的一个或多个驱动构件（30）。赋予组织切割器的运动至少是纵向的，并且优选地也是振动和/或旋转。

4. 发明申请

WO2012082791A3 APPARATUS AND METHODS FOR TREATING SLEEP APNEA 审中-公开
标题翻译：用于治疗睡眠APNEA的装置和方法
公开(公告)号：WO2012082791A3
公开(公告)日：2012-09-13
申请号：PCT/US2011064726
申请日：2011-12-13
申请人： QUIESCENCE MEDICAL INC , PFLUEGER D RUSSELL , THOMPSON CHRISTOPHER PAUL , BACICH STEVEN R , QUICK RICHARD L , YUREK MATTHEW
发明人： PFLUEGER D RUSSELL , THOMPSON CHRISTOPHER PAUL , BACICH STEVEN R , QUICK RICHARD L , YUREK MATTHEW
IPC分类号： A61F5/56 , A61B1/267 , A61F2/04 , A61F2/20
CPC分类号： A61F5/566
摘要： Apparatus and methods are provided for treating sleep apnea, snoring, and the like using an implant within an oropharyngeal region adjacent an anterior longitudinal ligament. The implant may include a relatively narrow central region between first and second relatively wide outer regions. In one embodiment, one of the outer regions is compressible to allow the outer region to be directed through or behind the ligament such that the central region is disposed within or behind the ligament, the outer region being resiliently expandable after passing through or behind the ligament. In another embodiment, the implant may include one or more tines or other features that may be directed into adjacent tissue to secure the implant within the oropharyngeal region.
摘要翻译：提供了使用邻近前纵韧带的口咽部区域内的植入物来治疗睡眠呼吸暂停，打鼾等的装置和方法。植入物可以包括在第一和第二相对宽的外部区域之间的相对窄的中心区域。在一个实施例中，外部区域中的一个是可压缩的，以允许外部区域被引导通过韧带的后面或后面，使得中心区域设置在韧带内或后面，外部区域在穿过或穿过韧带后可弹性地扩张。在另一个实施例中，植入物可以包括一个或多个尖齿或可被引导到相邻组织中的其它特征，以将植入物固定在口咽部区域内。

5. 发明申请

WO2008109300A3 ADJUSTABLE IMPLANT SYSTEM 审中-公开
标题翻译：可调植入系统
公开(公告)号：WO2008109300A3
公开(公告)日：2009-12-30
申请号：PCT/US2008055039
申请日：2008-02-26
申请人： ELLIPSE TECHNOLOGIES INC , POOL SCOTT , WALKER BLAIR , MCCOY JAY R , TRAN PETER P , QUICK RICHARD L , MOADDEB SHAHRAM , CHANG ARVIN
发明人： POOL SCOTT , WALKER BLAIR , MCCOY JAY R , TRAN PETER P , QUICK RICHARD L , MOADDEB SHAHRAM , CHANG ARVIN
IPC分类号： A61B17/12
CPC分类号： A61F5/0053 , A61F5/003 , A61F5/0059 , A61F5/0066 , A61F2005/002
摘要： An adjustable medical system includes an adjustable implant having an adjustable portion configured to the change dimension or orientation of an internal portion of a mammal and a driven portion comprising a magnetically responsive element configured for rotation about an axis of rotation. The system further includes an external adjustment device configured to magnetically couple to the driven portion from a location external to the mammal, the external adjustment device comprising a first permanent magnet configured for rotation about a first axis and a second permanent magnet configured for rotation about a second axis different from the first axis. Cooperative rotation of the first permanent magnet about the first axis and rotation of the second permanent magnet about the second axis result in rotation of the magnetically responsive element about its axis of rotation.
摘要翻译：可调节医疗系统包括可调植入物，其具有被配置为哺乳动物的内部部分的变化尺寸或取向的可调整部分，以及包括被配置为围绕旋转轴线旋转的磁响应元件的被驱动部分。该系统还包括外部调节装置，其被配置为从哺乳动物外部的位置磁耦合到被驱动部分，该外部调整装置包括被配置为围绕第一轴线旋转的第一永磁体和被配置为围绕一个第二轴不同于第一轴。围绕第一轴线的第一永磁体的合作旋转和第二永磁体围绕第二轴的旋转导致磁响应元件围绕其旋转轴的旋转。

6. 发明申请

WO0149184A9 RADIOFREQUENCY APPARATUS AND METHOD FOR ACCESSING A BIOPSY SITE 审中-公开
标题翻译：用于访问生物节点的射频设备和方法
公开(公告)号：WO0149184A9
公开(公告)日：2002-10-31
申请号：PCT/US0100543
申请日：2001-01-04
申请人： SENORX INC
发明人： BURBANK FRED , HOMET WILLIAM C , LUBOCK PAUL , QUICK RICHARD L , SHABAZ MARTIN
IPC分类号： A61B10/02 , A61B10/00 , A61B17/22 , A61B17/32 , A61B17/34 , A61B18/04 , A61B18/14 , A61B19/00 , A61K49/00
CPC分类号： A61B10/0266 , A61B10/02 , A61B17/32056 , A61B17/320725 , A61B17/3417 , A61B18/14 , A61B18/1482 , A61B18/1487 , A61B90/37 , A61B90/39 , A61B2010/0208 , A61B2018/00208 , A61B2018/00214 , A61B2018/00267 , A61B2018/00333 , A61B2018/00898 , A61B2018/0091 , A61B2018/00916 , A61B2018/1253 , A61B2018/126 , A61B2018/1407 , A61B2018/1475 , A61B2018/162 , A61B2090/3908 , A61B2090/3987 , A61K49/006 , A61M37/0069
摘要： A system for accessing a desired site within a patient's body includes a cannula defining an inner lumen that opens both forwardly (18) and into a longitudinally extending side aperture formed in the side of the cannula, near its distal end. An electrosurgical stylet slidable fits inside the inner lumen. At the distal end of the stylet is an electrosurgical electrode (28) capable of cutting tissue when at forward opening (18)and permitting advancement of the system into a patient's body. The electrode, in an expanded deployed configuration, can be wider than the maximum transverse dimension of the cannula, but it may be deflected toward the center of the stylet so that the electrode fits within the inner lumen of the cannula, permitting the stylet to be inserted and removed through the cannula. An elongate guide tube having a central axial bore which communicates with an orifice in the side of the guide tube can be inserted into the inner lumen of the cannula such that the guide tube orifice coincides with the longitudinally extending side aperture of the cannula. In use, the stylet with the cannula disposed about it is advanced into the patient's tissue, using electrosurgical cutting, until the side aperture of the cannula is disposed adjacent a desired site within the patient. The stylet can then be withdrawn from the cannula providing access through the inner lumen of the cannula to the tissue at the desired site.
摘要翻译：用于接近患者体内的期望部位的系统包括限定内腔的套管，所述内腔向前（18）并且进入在套管的侧部中靠近其远端处形成的纵向延伸的侧孔中。可滑动的电外科探针适合内腔。探针的远端是能够在向前打开（18）时切割组织并且允许系统推进到患者体内的电外科电极（28）。处于展开展开构型的电极可以比套管的最大横向尺寸更宽，但是其可以朝向通管丝的中心偏转，使得电极装配在套管的内腔内，允许通管丝是插入并通过套管移除。具有与引导管侧面中的孔连通的中心轴向孔的细长引导管可以插入到套管的内腔中，使得引导管孔与套管的纵向延伸侧孔重合。在使用中，使用电外科切割将设置在其周围的套管的探针前进到患者组织中，直到套管的侧孔邻近患者体内的期望部位设置。随后可将管心针从套管中取出，从而提供通过套管的内腔进入到期望部位的组织的通路。

7. 发明申请

WO0012009A8 SECURING SURGICAL INSTRUMENTS AT TARGET TISSUE SITES 审中-公开
标题翻译：在目标组织网站上安全手术器械
公开(公告)号：WO0012009A8
公开(公告)日：2000-08-03
申请号：PCT/US9919123
申请日：1999-08-24
申请人： SENORX INC
发明人： BURBANK FRED H , LUBOCK PAUL , JONES MICHAEL L , QUICK RICHARD L
IPC分类号： A61B10/02 , A61B10/00 , A61B17/00 , A61B17/22 , A61B17/32 , A61B17/34 , A61B18/12 , A61B18/14 , A61B19/00 , A61F2/82
CPC分类号： A61B10/04 , A61B10/02 , A61B10/0241 , A61B10/0266 , A61B17/00491 , A61B17/32056 , A61B17/320725 , A61B17/3417 , A61B18/12 , A61B18/14 , A61B18/1477 , A61B18/1487 , A61B18/1492 , A61B90/17 , A61B90/37 , A61B90/39 , A61B2017/320064 , A61B2017/3488 , A61B2018/00208 , A61B2018/00214 , A61B2018/00267 , A61B2018/00333 , A61B2018/00577 , A61B2018/00601 , A61B2018/00898 , A61B2018/0091 , A61B2018/00916 , A61B2018/1253 , A61B2018/126 , A61B2018/1407 , A61B2018/1425 , A61B2018/1475 , A61B2018/162 , A61B2019/5487 , A61B2019/5491 , A61B2090/3908 , A61B2090/3991
摘要： Devices and methods are provided for securely affixing a medical instrument to desired tissue in a patient's body, using a fixation agent. Such medical instruments may comprise localization wires or tissue acquisition instruments, such as biopsy instruments, for example. In the case of tissue acquisition instruments, the inventors have discovered significant advantages for securely affixing the distal end of the tissue acquisition instrument to a particular tissue target area. For example, such an approach permits the imaging environment to be uncoupled from the procedural environment so that expensive and often unavaible imaging equipment, such as stereotactic imaging equipment, need not be used. In a preferred embodiment, a bonding agent, such as adhesive, surgical glue, or a solvent, is used as the fixation agent.
摘要翻译：提供了设备和方法，用于使用固定剂将医疗器械牢固地固定在患者体内的期望的组织上。这样的医疗器械可以包括定位线或组织采集器械，例如活检器械。在组织采集仪器的情况下，本发明人发现了将组织采集仪器的远端牢固地固定到特定组织靶区域的显着优点。例如，这种方法允许成像环境与程序环境脱离联系，从而不需要使用诸如立体定向成像设备之类昂贵且通常不可见的成像设备。在优选的实施方案中，使用粘合剂，例如粘合剂，手术胶或溶剂作为固定剂。

8. 发明申请

WO2004075719A3 BIOPSY DEVICE WITH INNER CUTTING MEMBER 审中-公开
标题翻译：具有内切刀的生物装置
公开(公告)号：WO2004075719A3
公开(公告)日：2007-03-01
申请号：PCT/US2004005023
申请日：2004-02-20
申请人： SENORX INC
发明人： QUICK RICHARD L , LOUW FRANK R , LUBOCK PAUL , SHABAZ MARTIN V , SAFABASH JASON
IPC分类号： A61B10/00 , A61B10/02 , A61B17/00 , A61B17/32 , A61B17/34
CPC分类号： A61B10/0275 , A61B17/32002 , A61B17/3417 , A61B2010/0208 , A61B2010/0225 , A61B2017/0046 , A61B2017/00473 , A61B2017/3405 , A61B2017/3454 , A61B2090/0811
摘要： The invention is directed to devices and methods for separating and collecting a tissue specimen form a patient's target site. The device includes a probe member and a penetrating distal tip and a tissue receiving aperture, and a tissue cutting member which is rotatable disposed within the probe member to cut a tissue specimen drawn into the interior of the device through the aperture. The longitudinal edges of the aperture are preferably sharpened to engage the cutting edges of the tissue cutting member. Vacuum may be provided in the inner lumen of the cutting member to transport the tissue therethrough. Rotation, rotational oscillation and/or longitudinal reciprocation of the tissue cutting member is effective to separate a tissue specimen from surrounding tissue. An accessing cannula having a tissue receiving aperture may be concentrically disposed within the probe member and about the tissue cutting member.
摘要翻译：本发明涉及用于从患者的目标部位分离和收集组织标本的装置和方法。该装置包括探针构件和穿透远侧末端和组织接收孔，以及组织切割构件，其可旋转地设置在探针构件内，以通过孔切割被拉入装置内部的组织样本。孔的纵向边缘优选地被锐化以接合组织切割构件的切割边缘。可以在切割构件的内腔中设置真空以将组织输送通过其中。组织切割构件的旋转，旋转振动和/或纵向往复运动有效地将组织标本与周围组织分开。具有组织接收孔的进入套管可以同心地设置在探针构件内并且围绕组织切割构件。

9. 发明申请

WO0012009A2 SECURING SURGICAL INSTRUMENTS AT TARGET TISSUE SITES 审中-公开
标题翻译：在目标组织网站上保护手术器械
公开(公告)号：WO0012009A2
公开(公告)日：2000-03-09
申请号：PCT/US9919123
申请日：1999-08-24
申请人： SENORX INC
发明人： BURBANK FRED H , LUBOCK PAUL , JONES MICHAEL L , QUICK RICHARD L
IPC分类号： A61B10/02 , A61B10/00 , A61B17/00 , A61B17/22 , A61B17/32 , A61B17/34 , A61B18/12 , A61B18/14 , A61B19/00 , A61F2/82
CPC分类号： A61B10/04 , A61B10/02 , A61B10/0241 , A61B10/0266 , A61B17/00491 , A61B17/32056 , A61B17/320725 , A61B17/3417 , A61B18/12 , A61B18/14 , A61B18/1477 , A61B18/1487 , A61B18/1492 , A61B90/17 , A61B90/37 , A61B90/39 , A61B2017/320064 , A61B2017/3488 , A61B2018/00208 , A61B2018/00214 , A61B2018/00267 , A61B2018/00333 , A61B2018/00577 , A61B2018/00601 , A61B2018/00898 , A61B2018/0091 , A61B2018/00916 , A61B2018/1253 , A61B2018/126 , A61B2018/1407 , A61B2018/1425 , A61B2018/1475 , A61B2018/162 , A61B2019/5487 , A61B2019/5491 , A61B2090/3908 , A61B2090/3991
摘要： Devices and methods are provided for securely affixing a medical instrument to desired tissue in a patient's body, using a fixation agent. Such medical instruments may comprise localization wires or tissue acquisition instruments, such as biopsy instruments, for example. In the case of tissue acquisition instruments, the inventors have discovered significant advantages for securely affixing the distal end of the tissue acquisition instrument to a particular tissue target area. For example, such an approach permits the imaging environment to be uncoupled from the procedural environment so that expensive and often unavaible imaging equipment, such as stereotactic imaging equipment, need not be used. In a preferred embodiment, a bonding agent, such as adhesive, surgical glue, or a solvent, is used as the fixation agent.
摘要翻译：提供了使用固定剂将医疗器械牢固地附着到患者体内的期望组织的设备和方法。例如，这种医疗器械可以包括定位丝或组织采集器械，例如活检器械。在组织采集仪器的情况下，发明人已经发现将组织采集仪器的远端牢固地固定到特定组织目标区域的显着优点。例如，这种方法允许将成像环境从程序环境中分离出来，从而不需要使用诸如立体定向成像设备的昂贵且通常不可用的成像设备。在一个优选的实施方案中，粘合剂如粘合剂，手术胶或溶剂被用作固定剂。

10. 发明申请

WO2005063126A3 BIOPSY DEVICE WITH APERTURE ORIENTATION AND IMPROVED TIP FIELD OF THE INVENTION 审中-公开
标题翻译：具有孔径方向和改进尖端的生物装置发明领域
公开(公告)号：WO2005063126A3
公开(公告)日：2005-09-15
申请号：PCT/US2004043021
申请日：2004-12-20
申请人： SENORX INC
发明人： SHABAZ MARTIN V , QUICK RICHARD L , LOUW FRANK R , LUBOCK PAUL , SAFABASH JASON H
IPC分类号： A61B10/00 , A61B10/02 , A61B17/00 , A61B17/32 , A61B17/34 , A61B19/00
CPC分类号： A61B10/0275 , A61B10/0283 , A61B17/32002 , A61B17/32053 , A61B17/3417 , A61B90/30 , A61B2010/0208 , A61B2010/0225 , A61B2017/00207 , A61B2017/00473 , A61B2017/2911 , A61B2017/2925 , A61B2017/3405 , A61B2090/3908 , A61B2090/3987
摘要： The invention is directed to a system and device for separating and collecting a tissue specimen from a target site within a patient. The device includes a probe component which is releasably secured to the driver component (12). The probe component has an elongated tubular section (15), a penetrating distal tip (16) and a tissue receiving aperture (17) in the distal end of the tubular section proximal to the distal tip, and a tissue cutting member (20) which is slidably disposed within the probe member to cut a tissue specimen drawn into the interior of the device through the aperture by applying a vacuum (59) to the inner lumen of the tissue cutting member. The driver has drive members (22, 30, 40) for operating the elements of the probe component. The tissue penetrating distal tip preferably has a triple concave curvature shape with three curved cutting edges leading to a sharp distal point.
摘要翻译：本发明涉及一种用于从患者内的目标部位分离和收集组织标本的系统和装置。该装置包括可释放地固定到驱动器部件（12）的探针部件。探针部件具有细长的管状部分（15），远侧末端的管状部分的远端中的穿透远端（16）和组织接收孔（17），以及组织切割构件（20）可滑动地设置在所述探针构件内，以通过将真空（59）施加到所述组织切割构件的内腔来切割通过所述孔而被拉入所述装置的内部的组织样本。驱动器具有用于操作探针部件的元件的驱动部件（22,30,40）。组织穿透的远侧末端优选地具有三凹曲面形状，其具有三个弯曲的切割边缘，其导致尖锐的远端点。

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