公开(公告)号：WO1995014436A1

公开(公告)日：1995-06-01

申请号：PCT/IB1994000311

申请日：1994-10-12

Applicant: VALLEYLAB, INC.

Inventor： VALLEYLAB, INC. ,  RHUM, David ,  WELLS, Rodney ,  MAKOWER, Joshua

IPC: A61B17/39

CPC classification number: A61K31/195 ,  A61B17/320725 ,  A61B17/32075 ,  A61B17/3211 ,  A61B17/3417 ,  A61B17/3474 ,  A61B17/3476 ,  A61B17/3496 ,  A61B18/1487 ,  A61B2018/0019 ,  A61K38/063 ,  A61K38/21 ,  A61K38/212 ,  A61K45/06 ,  A61M13/003 ,  A61K2300/00 ,  A61K38/06

Abstract: A device (10) for retrograde hole opening through tissue has a member (11) elongate on an axis with a cross section shaped to insert axially through external tissue. A distal and a proximal end (13) of the member (11) respectively enter the tissue during placement and remain outside the tissue for control (26). A tip (14) at the distal end (12) has a deployable tissue divider (16) with one or more tissue parting elements (17) and each has a splitter (18). The tissue parting elements (17) are located within the cross-sectional dimensions of the member (11) in a storage position and are movable relative to the tip (14) for placement in an exposed position relative to the tip (14) when shifted from storage so that the splitter (18) thereof splits tissue during retrograde extraction along the axis and contact with tissue. Linkage (19) between the proximal end (13) and the deployable tissue divider (16) retains each of the tissue parting elements (17) with its splitter (18) exposed. The deployable tissue divider (16) has an electrode (23) for transmitting radio frequency energy received from the proximal end (13) to at least each splitter (18). A return path (27) completes the circuit to provide an electrosurgical effect during the retrograde extraction. A method of placing the device (10) for retrograde hole opening aligns the axis of the elongate member (11) normal to the outside abdominal wall of the body, places the distal end (12) through the tissue and leaving the proximal end (13) outside of the tissue, deploys the tissue divider (16) having one or more tissue parting elements (17) that are first located in a storage position within the cross section to an exposed position with the splitter (18) of each element positioned to split tissue, moves each element axially while exposed and fixed and splits tissue during extraction from the body cavity.

Abstract translation: 用于通过组织的逆向开孔的装置（10）具有在轴线上延伸的构件（11），该构件具有成形为轴向穿过外部组织的横截面。 构件（11）的远端和近端（13）在放置期间分别进入组织并保留在组织外部用于控制（26）。 在远端（12）处的尖端（14）具有可展开的组织分配器（16），其具有一个或多个组织分离元件（17），并且每个具有分离器（18）。 组织分离元件（17）位于构件（11）的存储位置的横截面尺寸内，并且可相对于尖端（14）移动，用于当偏移时相对于尖端（14）放置在暴露位置 从而使得其分离器（18）沿着轴线在逆行提取期间分裂组织并与组织接触。 近端（13）和可展开的组织分隔器（16）之间的连接（19）保持其分离器（18）暴露的每个组织分离元件（17）。 可展开的组织分配器（16）具有用于将从近端（13）接收的射频能量传送到至少每个分离器（18）的电极（23）。 返回路径（27）完成电路以在逆行提取期间提供电外科效果。 放置用于逆行孔开口的装置（10）的方法使细长构件（11）的轴线垂直于身体的外侧腹壁对准，使远端（12）穿过组织并离开近端（13） ），组织具有一个或多个组织分离元件（17）的组织分隔器（16），该组织分离元件首先位于横截面内的存储位置中，到达暴露位置，每个元件的分离器（18）定位于 分裂的组织，在暴露和固定的同时轴向移动每个元件，并在从体腔抽取期间分裂组织。