公开(公告)号：US5671736A

公开(公告)日：1997-09-30

申请号：US543417

申请日：1995-10-17

申请人： James Pettit ,  Edward Dowd ,  Richard A. Clement ,  Cleatis A. Eichelberger ,  Kenard E. Urion

发明人： James Pettit ,  Edward Dowd ,  Richard A. Clement ,  Cleatis A. Eichelberger ,  Kenard E. Urion

IPC分类号： A61B5/0448

CPC分类号： A61B5/4362 ,  A61B5/0448

摘要： A fetal electrode product for transmitting signals indicative of fetal heart rate from a fetus to a monitor. The product includes a slotted introducer which can be comfortably inserted through the cervix of the mother. A drive mechanism slides and rotates a holder--to which are attached, at opposite ends, a fetal spiral electrode (FSE) and a reference electrode--within the introducer to secure the FSE to the fetus. The solid drive mechanism has a drive rod, a handle on one end of the drive rod imparting translation and rotation to the drive rod, and a clutch on the opposite end of the drive rod imparting translation and rotation to the holder. The drive rod, handle, and clutch each have a channel transporting a twisted wire strand from the electrodes to a connector. The connector has an outside dimension greater than the inner diameter of the introducer to facilitate manipulation. The introducer cannot be pulled over the connector after the FSE is attached to the fetus; the wire strand exits the drive mechanism via its channel and the introducer through its longitudinal slot. A locking slit in the handle securely wedges the twisted wire strand in a fixed position before application of the FSE. A chamfer located at the intersection of the slot with the rearward end of the introducer also positions and helps wedge the twisted wire strand in a fixed position.

摘要翻译： 胎儿电极产品，用于将指示胎儿心率的信号从胎儿传输到监护仪。 该产品包括可以舒适地插入通过母亲子宫颈的开槽导引器。 驱动机构使引导器内的胎儿螺旋电极（FSE）和参比电极相对的端部滑动并转动，从而将FSE固定到胎儿。 固体驱动机构具有驱动杆，驱动杆的一端上的手柄向驱动杆施加平移和旋转，并且驱动杆的相对端上的离合器赋予支架平移和旋转。 驱动杆，手柄和离合器各自具有将绞合线从电极传送到连接器的通道。 连接器具有大于导引器的内径的外部尺寸以便于操纵。 在FSE连接到胎儿后，导引器不能被拉过连接器; 线束经由其通道和导引器通过其纵向狭槽离开驱动机构。 在施加FSE之前，手柄中的锁定狭缝牢固地将绞合线股固定在固定位置。 位于插槽与插入器后端相交处的倒角也定位并有助于扭绞线股固定在一定位置。

公开(公告)号：US5680859A

公开(公告)日：1997-10-28

申请号：US540920

申请日：1995-10-11

申请人： Kenard E. Urion ,  George R. Allen ,  Richard A. Clement ,  Clete A. Eichelberger

发明人： Kenard E. Urion ,  George R. Allen ,  Richard A. Clement ,  Clete A. Eichelberger

IPC分类号： A61B5/0448

CPC分类号： A61B5/4362 ,  A61B5/0448

摘要： An integrated introducer and drive rod system used to position and attach a spiral-shaped, biological needle probe to a fetus during labor and delivery. The system ensures that the sharp, pointed, probe (typically, a fetal spiral electrode) remains protected in a retracted position inside the introducer until attachment to the fetal scalp is desired. The flexible drive rod of the system has a "C"-shaped safety ring with an outside diameter slightly less than the inner diameter of the introducer at a point on the introducer; a "C"-shaped radial web with an outside diameter only slightly larger than the inner diameter of the introducer creating an interference fit between the drive rod and the introducer; or a "C"-shaped segmented rib that engages the rear end of the introducer. The introducer has an inner diameter sized to create an interference fit with the drive rod; a forward interior wall with an inside diameter slightly less than the outside diameter of the safety ring; a ramp on the front end of the introducer; a longitudinal slot disposed along its entire length; or a combination of one or more of these structures. In combination, the structures of the drive rod and introducer resist but (upon exertion of a predetermined force on the handle of the drive rod) allow translation of the drive rod within the introducer.

摘要翻译： 一个整合的导引器和驱动杆系统，用于在工作和分娩过程中将螺旋形的生物针头探针定位并附着到胎儿。 该系统确保尖锐的探针（通常是胎儿螺旋电极）在引导器内的缩回位置保持保护，直到需要连接到胎儿头皮。 系统的柔性驱动杆具有“C”型安全环，其外径稍微小于导引器的内径; “C”型径向腹板，其外径仅略大于导引器的内径，从而在驱动杆和导引器之间形成过盈配合; 或与导引器的后端接合的“C”形分段肋。 引导器具有尺寸设定成与驱动杆形成过盈配合的内径; 前内壁的内径略小于安全环的外径; 引导器前端的斜坡; 沿其整个长度设置的纵向槽; 或这些结构中的一个或多个的组合。 组合在一起，驱动杆和导引器的结构抵抗，但是（在驱动杆的手柄上施加预定的力时）允许驱动杆在导引器内的平移。