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    • 12. 发明授权
    • Methods and devices for delivering orthopedic cements to a target bone site
    • 将矫形水泥递送至目标骨骼部位的方法和装置
    • US07261717B2
    • 2007-08-28
    • US10661356
    • 2003-09-11
    • Duran YetkinlerDavid DelaneyBrent Constantz
    • Duran YetkinlerDavid DelaneyBrent Constantz
    • A61B17/58A61F2/00
    • A61B17/8822A61F2002/4602A61F2002/4683A61K33/42
    • Methods and devices are provided for delivery an orthopedic, e.g., calcium phosphate cement to a target bone site. In practicing the subject methods, a flowable cement composition is delivered to a target bone site in conjunction with vibration. Also provided are the devices that deliver a flowable cement to a target bone site according to the subject methods. Introducing a flowable cement to a target bone site in conjunction with vibration in accordance with the subject methods provides for highly controlled penetration of the delivered cement throughout the target bone site without the use of substantial pressure. The subject devices and methods find use in a variety of different applications, and are particularly suited for use in applications where a calcium phosphate cement is to be delivered to cancellous tissue, e.g., as found in a vertebral body.
    • 提供方法和装置用于将矫形例如磷酸钙粘合剂递送至靶骨部位。 在实施本发明方法时,将可流动的水泥组合物与振动一起递送至目标骨部位。 还提供了根据主题方法将可流动的水泥递送到目标骨骼部位的装置。 根据本发明的方法将可流动的水泥与振动结合引入目标骨骼部位提供了在不使用实质压力的情况下将所输送的水泥贯穿整个目标骨骼部位进行高度控制的渗透。 本发明的装置和方法可用于各种不同的应用中,并且特别适用于将磷酸钙水泥输送到例如在椎体中发现的松质骨组织的应用中。
    • 15. 发明申请
    • Orthopedic cements comprising a barium apatite contrast agent
    • 包含磷灰石钡造影剂的矫形水泥
    • US20050257714A1
    • 2005-11-24
    • US10851766
    • 2004-05-20
    • Brent ConstantzDavid DelaneyDuran Yetkinler
    • Brent ConstantzDavid DelaneyDuran Yetkinler
    • A61F13/00A61L24/02A61L27/12
    • A61L27/12A61L24/02
    • Methods are provided for producing settable compositions, e.g. pastes or clays, that set into calcium phosphate products and include a barium apatite contrast agent. In the subject methods, dry reactants and a setting fluid are combined with a barium apatite contrast agent, and the combined reactants are mixed to produce the settable composition. A feature of the invention is that the barium apatite contrast agent is particulate agent in which the particles have a size sufficient to provide a “peppered” appearance to the cement when imaged, such as when radiographically imaged. Also provided are the compositions themselves as well as kits for preparing the same. The subject methods and compositions produced thereby find use in a variety of applications, including hard tissue repair applications, such as vertebroplasty applications.
    • 提供了用于生产可固化组合物的方法,例如。 糊剂或粘土,其设置为磷酸钙产品并包括磷灰石钡造影剂。 在本发明方法中,将干燥反应物和凝固流体与磷灰石造影剂组合,并将混合的反应物混合以产生可固化组合物。 本发明的一个特征是磷灰石造影剂是颗粒剂,其中颗粒具有足够的尺寸,以便在成像时,例如当放射摄影时对水泥提供“萌芽”的外观。 还提供了组合物本身以及用于制备它们的试剂盒。 由此产生的主题方法和组合物可用于各种应用,包括硬组织修复应用,例如椎体成形术应用。
    • 17. 发明授权
    • Apparatus for hydroxyapatite coatings of substrates
    • 基质羟基磷灰石涂层装置
    • US5188670A
    • 1993-02-23
    • US686525
    • 1991-04-17
    • Brent Constantz
    • Brent Constantz
    • A61F2/00A61L27/32
    • A61L27/32A61F2310/00796
    • Methods, compositions and apparatus are provided for coating a substrate with a strongly adherent hydroxyapatite coating, which allows for ingrowth of natural bone and strong bonding between the coating and the substrate. The procedure provides for coating under conditions which form sticky particles which bind to the substrate to form a crystalline hydroxyapatite coating. The coating has particular application for prostheses, where porous areas of the prostheses are completely coated with a thin sturdy coating of hydroxyapatite.The apparatus includes a coating trough in which the substrates are present and the reactive components added. The medium is recirculated in an outer circuit through a distribution tank solution preparation tank and coating trough. Means are provided for maintaining temperature and pH. The substrates are maintained in a line normal to the flow in the trough and can be rotated to ensure even coating.
    • 提供方法,组合物和装置用于用强粘附羟基磷灰石涂层涂覆基底,其允许天然骨的向内生长和涂层与基底之间的强结合。 该方法提供在形成粘合颗粒的条件下进行涂布,所述粘性颗粒结合到基底以形成结晶羟基磷灰石涂层。 该涂层特别适用于假体,其中假体的多孔区域被完全涂覆有薄的坚固的羟基磷灰石涂层。 该装置包括涂覆槽,其中存在基板并添加反应性组分。 介质通过分配罐溶液制备罐和涂层槽在外部回路中再循环。 提供了保持温度和pH值的方法。 基材保持在与槽中的流动垂直的线中,并且可以旋转以确保均匀的涂层。