公开(公告)号：US20050137454A1

公开(公告)日：2005-06-23

申请号：US10888083

申请日：2004-07-08

Applicant: Vahid Saadat ,  Richard Ewers ,  Eugene Chen

Inventor： Vahid Saadat ,  Richard Ewers ,  Eugene Chen

IPC: A61B1/005 ,  A61B1/01 ,  A61B1/31 ,  A61B1/32 ,  A61B1/00 ,  A61B1/04

CPC classification number: A61B1/0052 ,  A61B1/00078 ,  A61B1/0008 ,  A61B1/00082 ,  A61B1/00135 ,  A61B1/0055 ,  A61B1/0057 ,  A61B1/31 ,  A61B1/32

Abstract: Apparatus and methods are provided for placing and advancing a diagnostic or therapeutic instrument in a hollow body organ of a tortuous or unsupported anatomy, comprising a handle, an overtube, a distal region having an atraumatic tip. The overtube may be removable from the handle, and have a longitudinal axis disposed at an angle relative to the handle. The overtube may be selectively stiffened to reduce distension of the organ caused by advancement of the diagnostic or therapeutic instrument. The distal region permits passive steering of the overtube caused by deflection of the diagnostic or therapeutic instrument while the atraumatic tip prevents the wall of the organ from becoming caught or pinched during manipulation of the diagnostic or therapeutic instrument.

公开(公告)号：US20050107736A1

公开(公告)日：2005-05-19

申请号：US10491657

申请日：2002-08-29

Applicant: Jaime Landman ,  Ralph Clayman ,  Richard Ewers

Inventor： Jaime Landman ,  Ralph Clayman ,  Richard Ewers

IPC: A61M3/00 ,  A61M1/00 ,  A61M25/00 ,  A61M31/00 ,  A61M37/00

CPC classification number: A61M25/007 ,  A61M25/0032 ,  A61M25/0041 ,  A61M25/0068 ,  A61M27/008 ,  A61M31/00 ,  A61M2025/0004 ,  A61M2025/0034 ,  A61M2025/0073 ,  A61M2025/0681 ,  A61M2205/3331 ,  A61M2210/1082

Abstract: A high-flow low-pressure irrigation system (10) for directing a fluid to and recovering the fluid from an area within a body, the irrigation system (10) comprising a sheath (37) and a flexible catheter (20) disposed in the sheath (37). The catheter (20) comprises a plurality of apertures (26) at a distal pigtail portion (28). The fluid is directed through the apertures (26) and recovered through the sheath (37). Renal applications include alkaline irrigation for dissolution or uric acid stones, chemo-dissolution of cystine stones, irrigation with chemotherapy drugs after ureteroscopic tumor management, antibiotic irrigation for severe infection (e.g. fungal and bacterial), and irrigation of thrombotic agents (Alum Or direct delivery of Amicar for renal bleeding).

Abstract translation: 一种用于将流体引导到身体内的区域并从其中回收流体的高流量低压灌溉系统（10），所述灌溉系统（10）包括护套（37）和柔性导管（20），所述柔性导管 护套（37）。 导管（20）包括在远端猪尾部分（28）处的多个孔（26）。 流体被引导通过孔（26）并通过护套（37）回收。 肾脏应用包括碱性灌洗溶解或尿酸结石，胱氨酸结石化学溶解，输尿管镜肿瘤治疗后用化疗药物灌注，严重感染（例如真菌和细菌）的抗生素灌洗和血栓形成剂的灌注（Alum Or direct delivery 的Amicar用于肾脏出血）。