公开(公告)号：US4954046A

公开(公告)日：1990-09-04

申请号：US447880

申请日：1989-12-08

申请人： Ronald D. Irvin ,  David Burkett ,  David E. Kaplan ,  Ronald J. Harvey

发明人： Ronald D. Irvin ,  David Burkett ,  David E. Kaplan ,  Ronald J. Harvey

IPC分类号： F04B43/12 ,  A61M1/10 ,  A61M5/142 ,  F04B43/08

CPC分类号： A61M5/14228 ,  F04B43/082 ,  Y10S128/12

摘要： A linear peristaltic pump includes a mechanism for maintaining linear flow of fluid through an I.V. tube. The mechanism comprises a casing carrying a rotatable camshaft having a plurality of cams spaced therealong in helical arrangement and a plurality of fingers coupled to the camshaft. A housing for establishing linear reciprocal movement of the fingers in response to rotation of the shaft establishes a moving zone of occlusion along a tube held against the fingers. Aligning means are included for establishing an axis of rotation of the camshaft which is slightly tilted with respect to the tube. This is accomplished by raising or lowering the upstream or the downstream end of the camshaft to prevent unwanted pressure from building up in the tube to reduce pulsatile flow and maintain linear flow. The aligning mechanism comprises a generally cylindrical bushing having an eccentric hole therethrough for carrying the hinged connection between the casing and the housing. The bushing has a slot therethrough for adjustably rotating the bushing for adjusting the amount of tilt. The adjustment can take place during operation of the pump, having a pressure sensor against the tube, to achieve the optimal positioning of the camshaft depending on the tolerances of the pump mechanism to establish linear flow of fluid through the tube.

公开(公告)号：US4909710A

公开(公告)日：1990-03-20

申请号：US425473

申请日：1989-10-23

申请人： David E. Kaplan ,  David Burkett ,  Laurence Warden

发明人： David E. Kaplan ,  David Burkett ,  Laurence Warden

IPC分类号： F04B43/08

CPC分类号： A61M5/14228 ,  F04B43/082

摘要： A linear peristaltic pump equipped with a pressure relief mechanism for pumping I.V. fluids to a patient comprises a platen for supporting the tube, and a plurality of fingers which sequentially urge against the tube resting against the platen for creating a moving zone of occlusion. Cam lobes are formed to lift a penultimate and ultimate finger off of the tube at a rate faster than the other fingers to prevent pressure increases inside the tube which would otherwise be caused by other fingers urging against the tube. Additionally, the ultimate finger may be shortened with respect to the other fingers to reduce the total occlusion time of the ultimate finger to provide a more linearized flow of fluid to the patient.

摘要翻译： 线性蠕动泵配备有压力释放机构，用于泵送I.V。 流体到患者包括用于支撑管的压板，以及多个指状物，其顺序地推靠着靠在压盘上的管子，以产生移动的闭塞区域。 凸轮凸角被形成为以比其他手指更快的速率将倒数第二个和最终的手指从管中提起，以防止管内的压力增加，否则其他手指会推压在管上。 另外，最终手指可能相对于其他手指缩短，以减少最终手指的完全闭塞时间，以向患者提供更线性化的流体流。

公开(公告)号：US20070167975A1

公开(公告)日：2007-07-19

申请号：US11651667

申请日：2007-01-10

申请人： William Boyle ,  David Burkett ,  Andy Denison ,  Benjamin Huter ,  Scott Huter ,  Arkady Kokish ,  Kent Stalker ,  Chicheng Wang ,  John Whitfield

发明人： William Boyle ,  David Burkett ,  Andy Denison ,  Benjamin Huter ,  Scott Huter ,  Arkady Kokish ,  Kent Stalker ,  Chicheng Wang ,  John Whitfield

IPC分类号： A61M29/00

CPC分类号： A61F2/013 ,  A61F2002/011 ,  A61F2002/015 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/005 ,  A61F2230/0067 ,  A61F2230/008

摘要： An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guidewire and is deployed within the patient's vasculature as the guidewire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guidewire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.

摘要翻译： 一种用于血管中的栓塞保护装置，当在狭窄或闭塞区域进行介入手术以捕获可能在手术期间产生和释放到血流中的任何栓塞物质。 该装置包括具有自扩张支柱组件和附接到其上的过滤元件的过滤组件。 在一个实施例中，过滤组件附接到导丝的远端，并且当导线被操纵进入治疗区域时，其部署在患者的脉管系统内。 以同轴布置放置在过滤组件上方的限制护套将过滤组件保持在其收缩位置，直到其准备好被医师部署为止。 此后，护套可缩回以露出过滤组件，然后过滤组件将在患者的脉管系统内自我扩张。 介入装置可以在导丝上传送，并且在介入手术期间产生的并释放到血流中的任何栓塞碎片将进入过滤组件并被捕获在其中。 其他实施例包括附接到外部管状构件和内部轴构件的过滤构件，其向组件的远端施加轴向力，以根据需要来扩展或收缩支柱。

公开(公告)号：US4836752A

公开(公告)日：1989-06-06

申请号：US115702

申请日：1987-11-02

申请人： David Burkett

发明人： David Burkett

IPC分类号： A61M5/00 ,  A61M5/142 ,  A61M5/168

CPC分类号： A61M5/16859

摘要： A device for detecting partial restriction in a fluid line connecting a fluid source with an IV infusion pump comprises a gauge mounted on the pump and operatively associated with the line to determine fluid pressure therein. The pump also comprises a peristable finger to conditionally occlude the line and a miroprocessor, upon occlusion of the line, to establish fluid pressure parameters within which the indication is that there is no partial restriction in the line. The pump also uses the microprocessor to compare actual pressure measured by the gauge during an occlusion with the established parameters to determine whether pump operation is to be continued.

公开(公告)号：US20100306023A1

公开(公告)日：2010-12-02

申请号：US12474341

申请日：2009-05-29

申请人： Catalin Grigoroscuta ,  Alexandru Costin ,  Phillip Ydens ,  Mitch Green ,  David Burkett ,  Murugappan Palaniappan

发明人： Catalin Grigoroscuta ,  Alexandru Costin ,  Phillip Ydens ,  Mitch Green ,  David Burkett ,  Murugappan Palaniappan

IPC分类号： G06Q30/00 ,  G06Q99/00

CPC分类号： G06Q30/0255 ,  G06Q30/02 ,  G06Q30/0256 ,  G06Q30/0269

摘要： Systems and methods are disclosed for providing user-targeted advertisements to content recipients. Such advertisements may, for example, be selected using a user profile that is maintained locally at the recipient's computing or other content consuming device. A user profile can include information about the user's past viewing behavior. One exemplary embodiment uses a local content player software application to maintain a user profile based on contextual, behavioral, demographic, and other data linked to the content, the user's viewing habits, and/or location, among other things. Such a content player can select advertisements by matching user content information with user profile information. User profile information can be limited to local use to protect user privacy concerns.

摘要翻译： 公开了用于向内容接收者提供针对用户的广告的系统和方法。 例如，可以使用在接收者的计算或其他内容消费设备本地维护的用户简档来选择这样的广告。 用户简档可以包括关于用户过去的观看行为的信息。 一个示例性实施例使用本地内容播放器软件应用程序来维护基于与内容链接的上下文，行为，人口统计学和其他数据的用户简档，用户的观看习惯和/或位置等。 这样的内容播放器可以通过将用户内容信息与用户简档信息匹配来选择广告。 用户个人资料信息可以限于本地使用，以保护用户隐私问题。

公开(公告)号：US06695915B2

公开(公告)日：2004-02-24

申请号：US10196673

申请日：2002-07-15

申请人： David Burkett ,  Emmanuel Biagtan

发明人： David Burkett ,  Emmanuel Biagtan

IPC分类号： B05C1102

CPC分类号： B05C3/12 ,  A61M2025/09108

摘要： A method and apparatus for applying a polymer coating on an elongated substrate, preferably an elongate intracorporeal device in the form of a guidewire. An extrudable polymer cartridge is moved by a cartridge advancement mechanism into a guide chamber which is heated at an end with a die or orifice through which a desired portion of a guidewire may pass and be coated. Parameters such as guide chamber temperature, pull speed and force exerted by the cartridge advancement mechanism may be controlled with a computer program in order to achieve repeatable results. The guide chamber, extrudable polymer cartridge, die, and push tube may all be made from polymer components which can be reused or disposed of after a single use. The extrudable polymer cartridge may have a variety of configurations including multiple layers of different materials, eccentric shapes, multiple lumens for multiple elements to be drawn through and coated and asymmetric disposition of different materials with respect to the longitudinal axis as viewed in a transverse cross section which can give bending properties having a preferred direction in the coated guidewire or device.

摘要翻译： 一种用于将聚合物涂层施加在细长衬底上，优选呈导线形式的细长体内器件的方法和装置。 可挤出聚合物盒通过盒前进机构移动到引导室中，引导室在一端被加热的模具或孔口，导丝的所需部分可通过该模具或孔口穿过并被涂覆。 可以用计算机程序来控制诸如引导室温度，拉速度和由盒前进机构施加的力的参数，以实现可重复的结果。 引导室，可挤出聚合物盒，模具和推管均可由聚合物组分制成，其可以在单次使用后重复使用或处理。 可挤压聚合物盒可以具有各种构造，包括多层不同材料，偏心形状，用于多个要被拉伸和涂覆的元件的多个腔，以及横向截面中​​观察到的不同材料相对于纵向轴线的不对称布置 其可以在涂覆的导丝或装置中产生具有优选方向的弯曲性质。

公开(公告)号：US4856972A

公开(公告)日：1989-08-15

申请号：US204382

申请日：1988-06-09

申请人： Peter Van Benschoten ,  David Burkett

发明人： Peter Van Benschoten ,  David Burkett

IPC分类号： F04C5/00 ,  A61M5/142 ,  F04B43/12

CPC分类号： F04B43/12

摘要： A peristaltic pump for infusing medical solutions to a patient through a flexible tube comprises a pair of counter-rotating drive shafts mounted on a base. A separate roller is eccentrically mounted on each of the drive shafts and each roller has a wheel which is slidingly suspended at its periphery. A pair of curvilinear platens are each separately disposed concentric with a respective drive shaft to engage the tube between the wheel on each roller and the platen. Cooperative counterrotation of the drive shafts cause each roller to sequentially squeeze the tube against its respective platen to create a moving zone of occlusion along the tube.

公开(公告)号：US20070255217A1

公开(公告)日：2007-11-01

申请号：US11762617

申请日：2007-06-13

申请人： David Burkett ,  Kevin Britton ,  Ryan Grandfield ,  Peter D'Aquanni ,  David Wrolstad ,  Edwin Mahieu ,  Wayne Cornish ,  Mark Richardson

发明人： David Burkett ,  Kevin Britton ,  Ryan Grandfield ,  Peter D'Aquanni ,  David Wrolstad ,  Edwin Mahieu ,  Wayne Cornish ,  Mark Richardson

IPC分类号： A61M5/178

CPC分类号： A61M25/09 ,  A61B17/12145 ,  A61F2/95 ,  A61F2/958 ,  A61M25/0043 ,  A61M2025/006 ,  A61M2025/0062 ,  A61M2025/09108 ,  A61M2025/09133 ,  B29C48/05 ,  B29C48/12 ,  B29C48/155

摘要： A guide wire for advancing a medical device such as a catheter through a patient's body lumen which has an elongated core with proximal and distal core section, a flexible tubular member such as a coil on the distal end. The wire core includes surface textures that are translated into the overlying coating. Alternatively, the coating has its own surface texture. The surface textures include randomly or non-randomly spaced bumps, divots, ridges, helical grooves, longitudinal grooves, undulations, etc.

摘要翻译： 一种用于使诸如导管的医疗装置通过患者体腔前进的导丝，所述导管具有具有近端和远侧芯部的细长芯，在远端上具有诸如线圈的柔性管状构件。 线芯包括被翻译成上覆涂层的表面纹理。 或者，涂层具有其自己的表面纹理。 表面纹理包括随机或非随机间隔的凸块，凸纹，凸脊，螺旋槽，纵向凹槽，起伏等。

公开(公告)号：US20070162071A1

公开(公告)日：2007-07-12

申请号：US11698549

申请日：2007-01-26

申请人： David Burkett ,  Robert Esselstein ,  Kathern Lind ,  Pablito Buan ,  Robert Hazelden ,  Thomas Tokarchik ,  Ryan Grandfield ,  Aaron Baldwin ,  Wayne Cornish ,  Philip Yip

发明人： David Burkett ,  Robert Esselstein ,  Kathern Lind ,  Pablito Buan ,  Robert Hazelden ,  Thomas Tokarchik ,  Ryan Grandfield ,  Aaron Baldwin ,  Wayne Cornish ,  Philip Yip

IPC分类号： A61M29/00

CPC分类号： A61F2/01 ,  A61F2002/011 ,  A61F2002/015 ,  A61F2002/018 ,  A61F2230/0006 ,  A61F2230/0067

摘要： A locking component for locking a medical device onto a guide wire. Such medical devices include, for example, an embolic filter assembly used to capture embolic material that may be created and released into a patient's vasculature during a stenting or angioplasty procedure. The embolic filter assembly tracks along the guide wire, and is delivered to a treatment site where it is locked in place and deployed. The locking component enables the filter assembly to lock onto any standard guide wire, and does not require a modified guide wire that has a specially-designed fitting or stop to accomplish the locking function.

摘要翻译： 用于将医疗装置锁定在导丝上的锁定部件。 这样的医疗装置包括例如用于捕获栓塞材料的栓塞过滤器组件，其可以在支架置入或血管成形术程序期间产生并释放到患者的脉管系统中。 栓塞过滤器组件沿着导丝跟踪，并且被输送到其被锁定就位并展开的治疗部位。 锁定组件使过滤器组件能够锁定到任何标准导丝上，并且不需要具有专门设计的接头或止挡件的改进的导丝来实现锁定功能。

公开(公告)号：US06599557B2

公开(公告)日：2003-07-29

申请号：US10161786

申请日：2002-06-04

申请人： David Burkett ,  Emmanuel Biagtan

发明人： David Burkett ,  Emmanuel Biagtan

IPC分类号： B05D118

CPC分类号： B05C3/12 ,  A61M2025/09108

摘要： A method and apparatus for applying a polymer coating on an elongated substrate, preferably an elongate intracorporeal device in the form of a guidewire. An extrudable polymer cartridge is moved by a cartridge advancement mechanism into a guide chamber which is heated at an end with a die or orifice through which a desired portion of a guidewire may pass and be coated. Parameters such as guide chamber temperature, pull speed and force exerted by the cartridge advancement mechanism may be controlled with a computer program in order to achieve repeatable results. The guide chamber, extrudable polymer cartridge, die, and push tube may all be made from polymer components which can be reused or disposed of after a single use. The extrudable polymer cartridge may have a variety of configurations including multiple layers of different materials, eccentric shapes, multiple lumens for multiple elements to be drawn through and coated and asymmetric disposition of different materials with respect to the longitudinal axis as viewed in a transverse cross section which can give bending properties having a preferred direction in the coated guidewire or device.