公开(公告)号：US07763049B2

公开(公告)日：2010-07-27

申请号：US10865169

申请日：2004-06-09

申请人： Suranjan Roychowdhury

发明人： Suranjan Roychowdhury

IPC分类号： A61B17/70

CPC分类号： A61B17/7032 ,  A61B17/7035 ,  A61B17/7037 ,  A61B17/7041

摘要： An orthopedic fixation connector and system is provided. The orthopedic fixation system includes bone anchors and linking elements that are coupled together to form a stabilization construct. The linking elements are fixed relative to the bone anchors by clamping arrangements. The clamping arrangements include first linear interlock components coupled to the anchors and second linear interlock components that linearly interlock with the first interlock components to clamp the linking elements at desired positions relative to the anchors.

摘要翻译： 提供矫形固定连接器和系统。 矫形固定系统包括骨锚和联接在一起以形成稳定结构的连接元件。 连接元件通过夹紧装置相对于骨锚固定​​。 夹紧装置包括联接到锚固件的第一线性互锁部件和与第一互锁部件线性互锁以将连接元件相对于锚固件夹紧在期望位置的第二线性互锁部件。

公开(公告)号：US20080119784A1

公开(公告)日：2008-05-22

申请号：US11942080

申请日：2007-11-19

申请人： Suranjan Roychowdhury ,  Vincent G. Copa ,  Sidney F. Hauschild

发明人： Suranjan Roychowdhury ,  Vincent G. Copa ,  Sidney F. Hauschild

IPC分类号： A61M5/307

CPC分类号： A61B1/00006 ,  A61B1/00011 ,  A61B1/00114 ,  A61B1/00124 ,  A61B1/015 ,  A61M5/142 ,  A61M5/30 ,  A61M2205/502 ,  A61M2205/6018 ,  A61M2210/166

摘要： A needleless fluid delivery system for delivering therapeutic fluids to treatment sites within a patient. The fluid delivery system can include an automated injector source and a needleless access device. The access device can include a delivery scope and a treatment specific applicator. The automated injector source, delivery scope and applicator can be operably coupled with quick-connect style fittings so as to allow for quick replacement and maintenance of used or damaged components. The automated injector source can include a hands-free input mechanism allowing a medical professional to use both hands in manipulating the delivery scope and needleless applicator at the same time an injection is desired. The delivery scope and needleless applicator can comprise flexible or rigid lengths of tubing based on the accessibility of the treatment site. The needleless delivery system can include an imaging system for precisely position the applicator with respect to the treatment location.

摘要翻译： 用于将治疗性流体输送到患者体内的治疗部位的无针流体输送系统。 流体输送系统可以包括自动注射器源和无针入口装置。 进入装置可以包括输送范围和治疗特定的施用器。 自动注射器源，输送范围和施加器可以与快速连接式配件可操作地联接，以便快速更换和维护使用或损坏的部件。 自动注射器源可以包括免提输入机构，允许医疗专业人员在需要注射的同时使用双手来操纵输送范围和无针施加器。 输送范围和无针施加器可以基于治疗部位的可达性来包括柔性或刚性管段。 无针输送系统可以包括用于相对于治疗位置精确地定位施用器的成像系统。

公开(公告)号：US20080021257A1

公开(公告)日：2008-01-24

申请号：US11779667

申请日：2007-07-18

申请人： Suranjan Roychowdhury ,  Adam Gullickson ,  Kory Hamel

发明人： Suranjan Roychowdhury ,  Adam Gullickson ,  Kory Hamel

IPC分类号： A61N5/00

CPC分类号： A61N5/1027 ,  A61B2017/00274 ,  A61B2018/00547 ,  A61N5/1001 ,  A61N2005/1011 ,  A61N2005/1055 ,  A61N2005/1058 ,  A61N2005/1061

摘要： An improved x-ray brachytherapy system and related methods for delivering low dose radiation to a treatment location while minimizing damage to surrounding healthy tissue. Generally, the x-ray brachytherapy system can include a device controller, a device positioner, system imagery, and an x-ray brachytherapy probe having two or more delivery needles. The two or more delivery needles are operably coupled to at least one probe housing such that a tip spacing between the delivery needles is minimized when positioned at the treatment location. By reducing tip spacing at the treatment location, smaller radiation doses can be delivered so as to limit radiation exposure to surrounding healthy tissue.

摘要翻译： 改进的x射线近距离放射治疗系统以及用于将低剂量辐射递送到治疗位置的相关方法，同时使对周围健康组织的损伤最小化。 通常，x射线近距离放射治疗系统可以包括装置控制器，装置定位器，系统图像和具有两个或更多个输送针的x射线近距离放射治疗探针。 两个或更多个输送针可操作地联接到至少一个探针壳体，使得当定位在治疗位置时，输送针之间的尖端间隔最小化。 通过减少处理位置处的尖端间距，可以递送更小的辐射剂量，以限制对周围健康组织的辐射照射。

公开(公告)号：US6066114A

公开(公告)日：2000-05-23

申请号：US150463

申请日：1998-09-09

申请人： Rich L. Goodin ,  Suranjan Roychowdhury ,  Katherine Prindle

发明人： Rich L. Goodin ,  Suranjan Roychowdhury ,  Katherine Prindle

IPC分类号： A61M29/02 ,  A61M29/00

CPC分类号： A61M25/104 ,  A61M2025/0063 ,  A61M2025/0183 ,  A61M2025/1079

摘要： A dilation catheter having a first shaft section, a second shaft section attached to the first shaft section, and an inflatable balloon attached to the second shaft section. A fluid pathway is defined through the catheter for inflation of the balloon. A guide wire lumen is provided in the second shaft section that can extend between the distal end of the balloon and a point distal of the first shaft section. A stiffening member is provided within the second shaft section of the dilation catheter to provide additional stiffness to the second shaft section. In a preferred embodiment, the stiffening member is attached at the distal end of the first shaft section to occlude the hollow passage of the first shaft section. In this embodiment, the first shaft section further includes a fluid port that is proximal of the stiffening member and that extends between the hollow passage of the first shaft section and the exterior of the first shaft section. The second shaft section overlaps the first shaft section so that the hollow passage of the second shaft section is in fluid communication with the fluid port of the first shaft section to define the fluid flow pathway. The stiffening member is free from fixed interconnection at its distal end, and includes a linear tapered region along a portion of its length to provide a gradient of stiffness to the second shaft section along the length of the stiffening member.

摘要翻译： 扩张导管，其具有第一轴部分，附接到第一轴部分的第二轴部分和附接到第二轴部分的可充气球囊。 通过导管限定流体通道以使气囊膨胀。 导丝管腔设置在第二轴部分中，其能够在球囊的远端与第一轴部分的远端之间延伸。 加强构件设置在扩张导管的第二轴部分内，以向第二轴部分提供额外的刚度。 在优选实施例中，加强构件附接在第一轴部分的远端处以封闭第一轴部分的中空通道。 在该实施例中，第一轴部还包括位于加强构件的近侧并且在第一轴部分的中空通道和第一轴部分的外部之间延伸的流体端口。 第二轴部分与第一轴部分重叠，使得第二轴部分的中空通道与第一轴部分的流体端口流体连通以限定流体流动路径。 加强构件在其远端处没有固定互连，并且包括沿其长度的一部分的线性锥形区域，以沿着加强构件的长度向第二轴部分提供刚度梯度。

公开(公告)号：US5681522A

公开(公告)日：1997-10-28

申请号：US625945

申请日：1996-04-01

申请人： Suranjan Roychowdhury

发明人： Suranjan Roychowdhury

IPC分类号： A61F2/958 ,  A61M25/00 ,  B29C49/00 ,  B29C49/08 ,  B29C49/64

CPC分类号： A61M25/1027 ,  A61M2025/1031 ,  A61M25/10 ,  B29C49/00 ,  B29K2067/00 ,  B29L2031/7542 ,  Y10S264/90

摘要： To improve the re-wrappability of the expander members used on balloon catheters subsequent to an initial inflation thereof, the balloon member is subjected to an annealing process in which the balloon member, in its wrapped configuration, is placed within a plastic sheath and it, together with the sheath, is then placed between the jaws of a clamping fixture where the jaws may be heated to a predetermined temperature. When the jaws are made to close on the sheath and the wrapped balloon contained within it, the wrapped balloon is subjected to a radial compressive pressure and a temperature approximately equal to or above the glass transition temperature for the balloon material utilized and then maintained at that temperature for a predetermined time interval. The annealing is found to introduce a memory component into the plastic of the balloon that causes it to assume a lower profile upon deflation than otherwise obtained.

摘要翻译： 为了改善在其初始膨胀之后使用于球囊导管的膨胀器构件的再包装性，对球囊构件进行退火处理，其中气囊构件处于其包裹构型，放置在塑料护套内， 然后将其与护套一起放置在夹持夹具的夹爪之间，其中夹爪可以被加热到预定温度。 当夹套在护套上被封闭并且包裹在其中的包裹的气球时，包裹的球囊经受径向压缩压力和大约等于或高于所使用的球囊材料的玻璃化转变温度的温度，然后保持在 温度预定的时间间隔。 发现退火将记忆组分引入气囊的塑料中，导致其在通气时呈现比其它获得的更低的轮廓。