公开(公告)号：US3799491A

公开(公告)日：1974-03-26

申请号：US19653471

申请日：1971-11-08

Applicant: STRYKER CORP

Inventor： WARFIELD W ,  BARNETT J

IPC: A47C27/14 ,  B22D19/00

CPC classification number: A47C27/14

Abstract: A method and apparatus for making a cushion constructed of a gel-like substance and having a flexible mesh-like sheet embedded therein. The mesh is placed within a tray so that the edges of the mesh drape over the upper edges of the side-walls of the tray where they are held by elongated channel-shaped clamping members. Each clamping member has an inner leg which projects downwardly into the tray to position the mesh at a desired level within the tray. Corner clips overlap adjacent ends of the channel members to hold same tightly in position. A liquid substance is poured into the tray and it passes through the mesh to fill the tray to the desired depth. The tray is placed in an oven and heated at a predetermined temperature for a predetermined time whereby the liquid substance becomes a gel-like cushion with the mesh embedded therein. After the cushion has cooled, it is removed from the tray and the edges of the mesh are trimmed. The gel-like cushion can then be covered by a suitable casing.

Abstract translation: 一种用于制造由凝胶状物质构成并具有嵌入其中的柔性网状片材的衬垫的方法和装置。 将网格放置在托盘内，使得网格的边缘覆盖在托盘的侧壁的上边缘上，在那里它们被细长的通道形夹紧构件保持。 每个夹紧构件具有向下突出到托盘中的内腿，以将网格定位在托盘内的期望水平。 拐角夹与通道构件的相邻端重叠以将其紧紧地保持在适当位置。 将液体物质倒入托盘中，并且其通过网格以将托盘填充到期望的深度。 将托盘放置在烘箱中并在预定温度下加热预定时间，由此液体物质变成凝胶状的垫子，网状物嵌入其中。 缓冲垫已经冷却后，将其从托盘中取出，网格边缘被修整。 然后可以用合适的外壳覆盖凝胶状垫。

公开(公告)号：US3797497A

公开(公告)日：1974-03-19

申请号：US3797497D

申请日：1972-02-28

Applicant: STRYKER CORP

Inventor： CRIM P ,  WARFIELD W

IPC: A61B17/00 ,  A61B17/16 ,  B23Q5/04 ,  F16H37/06

CPC classification number: B23Q5/045 ,  A61B17/1617 ,  A61B17/1633 ,  A61B17/1697 ,  A61B2017/00544 ,  Y10T74/19112

Abstract: A driving device including a right-angle handpiece assembly having a casing containing an input shaft, an output shaft and means drivingly connecting same. A bone drill attachment is connectible to the handpiece assembly and includes a cylindrical extension mountable upon the output end of the casing and concentric inner and outer drill bits which project from said extension. The inner drill bit is connectible to the output shaft by a pair of clutch mechanisms which are normally spring-biased into a disconnected position. The outer drill bit normally rotates with the inner drill bit but is permitted to move axially and angularly relative to the inner drill bit through a predetermined distance. The cutting end of the inner drill bit extends axially beyond the cutting end of the outer drill bit. Alternately, a wire driving attachment can be connected to the handpiece assembly and includes a chuck structure mountable upon the output end of the casing and drivingly connectible to the output shaft. The chuck structure has a continuous opening therethrough which aligns with a through opening in the casing for receiving therein an elongated member, such as a wire.

Abstract translation: 一种驱动装置，包括具有包含输入轴的壳体的直角手持组件，输出轴和驱动地连接其的装置。 骨钻附件可连接到手持件组件，并且包括可安装在壳体的输出端上的圆柱形延伸部和从所述延伸部突出的同心的内部和外部钻头。 内钻头可以通过一对离合器机构连接到输出轴，该离合器机构通常被弹簧偏压到断开的位置。 外钻头通常与内钻头一起旋转，但允许其相对于内钻头轴向和角度地移动预定距离。 内钻头的切割端轴向延伸超过外钻头的切割端。 或者，线驱动附件可以连接到手持件组件，并且包括可安装在壳体的输出端上并可驱动地连接到输出轴的卡盘结构。 卡盘结构具有穿过其中的连续开口，其与壳体中的通孔对准，用于在其中容纳细长构件，例如线。