公开(公告)号：US20050113741A1

公开(公告)日：2005-05-26

申请号：US10965314

申请日：2004-10-14

申请人： David Huang ,  John Hall ,  Mark Goodin ,  David Thompson

发明人： David Huang ,  John Hall ,  Mark Goodin ,  David Thompson

IPC分类号： A61F9/007 ,  A61M1/00

CPC分类号： A61M1/0031 ,  A61F9/00736 ,  A61M1/0064

摘要： A device for, when connected to a vacuum system, conducting aspiration fluid away from a surgical site includes a conduit having a portion adapted for insertion into the surgical site. The device also includes a flow limiter interposed between the vacuum system and the conduit and in fluid communication with the conduit. The flow limiter has at least two orifices arranged in series and a flow path interconnecting the at least two orifices. The flow path has a flow area that is greater than a flow area of each one of the at least two orifices. Aspiration fluid flows through the conduit and the flow limiter in response to a pressure drop between the surgical site and the vacuum system. The flow limiter produces a non-linear relationship between a rate of aspiration fluid flow and the pressure drop.

摘要翻译： 用于当连接到真空系统时将远离外科手术部位的吸引流体连接的装置包括具有适于插入外科手术部位的部分的导管。 该装置还包括插入在真空系统和导管之间并与导管流体连通的限流器。 流量限制器具有串联布置的至少两个孔和将至少两个孔相互连接的流路。 流动路径具有大于至少两个孔中的每一个的流动面积的流动面积。 吸入流体响应于手术部位和真空系统之间的压降而流过导管和流量限制器。 流量限制器在抽吸流体流量和压降之间产生非线性关系。