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11. 发明授权

US5620438A Method and apparatus for treating vascular tissue following angioplasty to minimize restenosis 失效
标题翻译：用于血管成形术治疗血管组织以最小化再狭窄的方法和装置
公开(公告)号：US5620438A
公开(公告)日：1997-04-15
申请号：US425858
申请日：1995-04-20
申请人： Curtis A. Amplatz , Christopher H. Porter , Mark A. Rydell
发明人： Curtis A. Amplatz , Christopher H. Porter , Mark A. Rydell
IPC分类号： A61B17/00 , A61B17/22 , A61B18/24 , A61M25/00 , A61N5/06 , A61N5/067 , A61N5/10
CPC分类号： A61N5/0601 , A61B18/245 , A61B2017/22002 , A61N2005/0661 , A61N2005/067 , A61N5/1007
摘要： A surgical instrument for treating a blood vessel wall following percutaneous transluminal coronary angioplasty (PTCA) includes an optical system for transmitting radiant energy, preferably UV light energy, from a laser source to the distal end portion a PTCA catheter and causing the radiant energy to exit the catheter in a relatively narrow radial band. A microprocessor-controlled stepping motor is used to longitudinally reposition the band along the length of the balloon of the PTCA catheter to thereby expose endothelial tissue spanned by the balloon to radiation for the purpose of inhibiting smooth muscle proliferation reducing incidences of restenosis.
摘要翻译：用于治疗经皮腔内冠状动脉血管成形术（PTCA）后的血管壁的手术器械包括用于将激光源的辐射能（优选UV光能）从PTCA导管传递到远端部分并使辐射能量退出的光学系统导管在较窄的径向带内。使用微处理器控制的步进电机沿着PTCA导管的气囊的长度纵向地重新定位带，从而将由球囊跨越的内皮组织暴露于辐射，以抑制平滑肌增生，减少再狭窄的发生。

12. 发明授权

US5342359A Bipolar coagulation device 失效
标题翻译：双极凝血装置
公开(公告)号：US5342359A
公开(公告)日：1994-08-30
申请号：US13832
申请日：1993-02-05
申请人： Mark A. Rydell
发明人： Mark A. Rydell
IPC分类号： A61B18/00 , A61B18/14 , A61B17/39
CPC分类号： A61B18/1442 , A61B18/1402 , A61B2018/00982
摘要： A bipolar coagulation instrument comprising three concentric tubes, wherein the outer tube is generally rigid, the central tube is an electrically conductive metal in communication with an energy source, and the inner tube is electrically non-conductive. The distal end of the central tube extends beyond the distal end of the outer tube and functions as an electrode and first jaw of the coagulation instrument. The inner tube, which is translationally movable by an operator, has extending therethrough within its lumen a conductive lead whose distal end protrudes distally therefrom beyond the distal end of the outer tube and is configured at its distal end to function as an opposing second jaw to the first jaw. Translational movement of the inner tube distally forces the second electrode jaw toward the first electrode jaw to thereby bring the first and second jaws into contact with each other. Thereafter, when current is introduced to the conductive lead and to the central tube, the resulting electrode jaws perform to cauterize tissue at the treatment site when such tissue is grasped within the jaws which are then closed. Subsequent proximal translational movement of the inner tube releases the distal end of the conductive lead which is the second jaw of the instrument from the distal end of the central tube which is the first jaw of the instrument. A coagulation instrument is thereby provided whose outer tube has a diameter of less than about three millimeters, thereby permitting its travel within the lumen of a minimally sized laparoscope, endoscope or similar device.
摘要翻译：一种双极凝结仪器，包括三个同心管，其中外管通常是刚性的，中心管是与能量源连通的导电金属，并且内管是非导电的。中心管的远端延伸超过外管的远端，并用作凝结仪器的电极和第一钳口。可由操作者平移移动的内管在其内腔中延伸穿过导电引线，导电引线的远端从外管向远端突出超过外管的远端，并且构造在其远端以用作相对的第二钳口第一颚内管的平移运动向远侧迫使第二电极钳口朝向第一电极钳口，从而使第一和第二钳口相互接触。此后，当电流引入导电引线和中心管时，所产生的电极钳口在将这些组织夹持在钳口内时被处理部位处理部位进行烧灼处理，然后封闭。内管的随后近端平移运动从作为仪器的第一钳口的中心管的远端释放作为仪器的第二钳口的导电引线的远端。因此，提供了一种凝结仪器，其外管具有小于约三毫米的直径，从而允许其在最小尺寸的腹腔镜，内窥镜或类似装置的内腔内行进。

13. 发明授权

US5258006A Bipolar electrosurgical forceps 失效
标题翻译：双极电外科钳
公开(公告)号：US5258006A
公开(公告)日：1993-11-02
申请号：US933127
申请日：1992-08-21
申请人： Mark A. Rydell , Corey J. Kulseth
发明人： Mark A. Rydell , Corey J. Kulseth
IPC分类号： A61B1/00 , A61B17/28 , A61B18/00 , A61B18/12 , A61B18/14 , A61B17/42
CPC分类号： A61B18/1442 , A61B18/1402 , A61B2018/00196 , A61B2018/1861
摘要： An instrument for cauterizing blood vessels while performing an endoscopic procedure includes a rigid outer tube with a proximal end, a distal end and an inner, semi-rigid, tube passing through the outer tube from its proximal end to its distal end. The inner tube has at least one lumen allowing passage of a pair of conductive leads therethrough. The leads terminate at the distal end of the tube in a pair of forceps jaws. The leads are mechanically connected to a scissors-style handle and are electrically connected to an RF generator. The outside diameter of the outer tubular body is sufficiently small that it can readily pass through the working lumen of an endoscope. Associated with the handle is a knob for rotating the inner tube and the conductive leads. The handle also contains a means for effecting translational motion of the inner tube within the outer tube and over the forceps and a means for introducing a preset gap to prevent complete closure of the forceps' jaws.

14. 发明授权

US5125928A Ablation catheter with selectively deployable electrodes 失效
标题翻译：消融导管与选择性可展开的电极
公开(公告)号：US5125928A
公开(公告)日：1992-06-30
申请号：US656799
申请日：1991-02-19
申请人： David J. Parins , Mark A. Rydell , Peter Stasz
发明人： David J. Parins , Mark A. Rydell , Peter Stasz
IPC分类号： A61B17/00 , A61B18/00 , A61B18/14 , A61M1/00 , A61M3/02
CPC分类号： A61B18/1492 , A61B2017/00292 , A61B2018/00196 , A61B2018/00232 , A61B2018/1435 , A61B2018/1861 , A61M2025/1086 , A61M3/0279
摘要： A RF ablation catheter for removing athero-stenotic lesions or modifying the tissue characteristics of the interior walls of selected blood vessels is described. The catheter is characterized in having a tip member which during the initial placement of the catheter within the vascular system so that the distal tip member is disposed in a working relation with the lesion to be removed, means are provided for increasing the cross-sectional profile of the tip members to thereby cause it to move into engagement with the lesion to be excised. The application of an RF voltage across a pair of bipolar electrodes is used to create an electric arc for effecting the cutting action, or alternatively, just sufficient RF energy to sear or otherwise alter the tissue surfaces engaged by the distal tip member.
摘要翻译：描述了用于去除动脉粥样硬化狭窄病变或改变选定血管内壁的组织特征的RF消融导管。导管的特征在于具有尖端构件，其在将导管初始放置在血管系统内期间使得远侧末端构件与待移除的病变处于工作关系中，提供用于增加横截面轮廓的装置的尖端构件，从而使其移动成与待切除的病变接合。在一对双极电极之间施加RF电压用于产生用于实现切割动作的电弧，或者替代地，仅仅具有足够的RF能量以消除或以其它方式改变由远端尖端部件接合的组织表面。

15. 发明授权

US5035696A Electrosurgical instrument for conducting endoscopic retrograde sphincterotomy 失效
标题翻译：用于进行内窥镜逆行括约肌切开术的电外科手术器械
公开(公告)号：US5035696A
公开(公告)日：1991-07-30
申请号：US474481
申请日：1990-02-02
申请人： Mark A. Rydell
发明人： Mark A. Rydell
IPC分类号： A61B18/04 , A61B18/14 , A61M3/02
CPC分类号： A61B18/14 , A61B18/1402 , A61B2018/00553 , A61B2018/1407 , A61M3/0279
摘要： A bioplar sphinctertome for use in endoscopic retrograde sphincterotomy procedures includes an elongated, flexible, plastic tube having either a single or a double lumen and includes a segment near its distal end which is both flexible and conductive. This segment is connected by a wire extending through the lumen to a terminal at the proximal end of the device adapted to be coupled to an electrosurgical generator. A second, longitudinally movable wire passes through the lumen and is connected at the proximal end to a finger-operated slide mechanism while its distal end passes through a small aperture formed in the tube just proximal of the flexible conductive segment. That wire is then anchored distally of the flexible conductive segment so that when a tensioning force is applied to the wire, the distal end portion of the instrument will bow, with the exposed wire comprising the active electrode and the flexible conductive segment functioning as the return electrode. A two-piece handle assembly permits the sphinctertome to be treated as a disposable, single-use surgical instrument.

16. 发明授权

US4986830A Valvuloplasty catheter with balloon which remains stable during inflation 失效
标题翻译：瓣膜成形术导管气囊在通气期间保持稳定
公开(公告)号：US4986830A
公开(公告)日：1991-01-22
申请号：US410852
申请日：1989-09-22
申请人： Robert C. Owens , Mark A. Rydell
发明人： Robert C. Owens , Mark A. Rydell
IPC分类号： A61M25/00 , A61B17/00 , A61M29/02
CPC分类号： A61M29/02 , A61B2017/00783
摘要： A valvuloplasty catheter is described which includes an elongated flexible plastic tube dimensioned so as to allow it to be passed through the vascular system. Affixed to the distal end portion of the tube is an inflatable expander member which is intended to be positioned in the annulus of the valve to be treated. Inflation ports expose the interior of the expander member to the lumen of the tube so that when an inflation fluid is injected, under pressure, at the distal end of the tube, the expander member expands radially outward to spread the valve and free-up its leaflets. The novelty resides in providing first and second inflation ports of differing size so that the expander member inflates so as to create a dog-bone effect, tending to stabilize the expander member relative to the valve being treated.

17. 发明授权

US4928693A Pressure monitor catheter 失效
标题翻译：压力监护仪导管
公开(公告)号：US4928693A
公开(公告)日：1990-05-29
申请号：US322362
申请日：1989-03-13
申请人： Richard L. Goodin , Mark A. Rydell , Rick L. Shockey
发明人： Richard L. Goodin , Mark A. Rydell , Rick L. Shockey
IPC分类号： A61B5/0215 , A61M25/00
CPC分类号： A61B5/0215 , A61M2025/0183
摘要： A blood pressure monitoring catheter for use in a Monorail.TM. intravascular system for measuring the pressure gradient across a stenotic lesion. It comprises an elongated, flexible, plastic, extruded, tubular member having a guidewire port extending through the wall thereof a short distance proximal to the distal end of the tubular member to intersect with a lumen which extends to the distal end. The second lumen runs the entire length of the tubular member from its distal end to its proximal end. The proximal end of the blood pressure monitor catheter is fitted to a molded plastic hub to facilitate the attachment of the catheter to the blood pressure measuring apparatus with which the catheter is to be used.

18. 发明授权

US4905691A Polypectome snare with bipolar electrodes 失效
标题翻译：双极电极的多光环绕圈
公开(公告)号：US4905691A
公开(公告)日：1990-03-06
申请号：US344073
申请日：1989-04-17
申请人： Mark A. Rydell
发明人： Mark A. Rydell
IPC分类号： A61B17/32 , A61B18/14
CPC分类号： A61B18/14 , A61B17/32056 , A61B18/1402 , A61B2018/1407
摘要： A polypectome snare whose loop comprises a pair of electrodes mechanically joined but electrically insulated from one another at their distal ends and adapted to be energized by a source of RF voltage for excising polyps on the inside of a body cavity is described. The polypectome snare is designed to be used with an endoscope and includes two concentric flexible plastic tubes each having proximal and distal ends and a lumen running the length thereof. At the proximal end is a hand grip which is secured to the wires leading to the bipolar electrodes with one of the wires passing through the lumen of the outermost tube and the other wire extending through the lumen of the inner tube. In this fashion, the wires remain insulated from one another over the length of the instrument and due to this same arrangement, the conductors comprising the bipolar electrodes cannot become twisted at the distal end of the implement to thereby create a short which would render the snare inoperative.

19. 发明授权

US4857045A Atherectomy catheter 失效
标题翻译：动脉粥样硬化切除术导管
公开(公告)号：US4857045A
公开(公告)日：1989-08-15
申请号：US111715
申请日：1987-10-23
申请人： Mark A. Rydell
发明人： Mark A. Rydell
IPC分类号： A61B17/22 , A61M1/00 , A61M25/00
CPC分类号： A61B17/320758 , A61M25/0069 , A61B2217/005
摘要： A catheter for facilitating the restoration of patency to a blood vessel occluded with an atheroma or other similar lesion or thrombus comprising an outer flexible plastic tubular member having a plurality of ports proximate its distal end and concentrically surrounding an inner flexible plastic tubular member having a cutting loop at its distal end. The distal end portion of the inner tubular member is journaled for rotation in the distal end portion of the outer tubular member. A motor is provided at the proximal end of the catheter assembly for rotatably driving the inner tubular member and the cutting loop thereof while flushing the treatment site and aspirating the flushing liquid, blood and any debris loosened during the procedure.
摘要翻译：一种导管，其用于促进血管恢复通畅，所述血管阻塞动脉粥样化或其它类似病变或血栓，所述血管包括外部柔性塑料管状构件，所述外部柔性塑料管状构件具有靠近其远端的多个端口并同心地围绕具有切割的内部柔性塑料管状构件在其远端循环。内部管状构件的远端部分被轴颈支承以在外部管状构件的远端部分中旋转。在导管组件的近端处提供电动机，用于可旋转地驱动内部管状构件及其切割环，同时冲洗处理部位并抽吸冲洗液体，血液和任何在操作过程中松动的碎屑。

20. 发明授权

US4547193A Catheter having embedded multi-apertured film 失效
标题翻译：导管具有嵌入式多孔膜
公开(公告)号：US4547193A
公开(公告)日：1985-10-15
申请号：US596920
申请日：1984-04-05
申请人： Mark A. Rydell
发明人： Mark A. Rydell
IPC分类号： A61M25/00 , A61M25/01
CPC分类号： A61M25/0108 , A61M25/0009
摘要： A tubular angiographic catheter containing a wrapped multi-apertured film embedded in the walls thereof. The film material and aperture size, shape and pattern may be varied to produce a tailored torque transfer characteristic for enhancing the maneuverability of the distal end of the catheter by manipulating its proximal end.
摘要翻译：一种管状血管造影导管，其包含嵌入其壁中的包裹的多孔膜。膜材料和孔径尺寸，形状和图案可以变化以产生适当的扭矩传递特性，用于通过操纵其近端来增强导管的远端的可操作性。

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