DUODENOSCOPE NEEDLE

• Main Authors: SECREST, DEAN, J, YOUNGER, MARLIN, E, GREULOCH, WILLIAM, E
• Format: Patent
• Language: English; French
• Published: 28.11.2002
• Edition: 7
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

A surgical device (10) for injecting a chemical agent within a subject for use in endoscopic injection therapies is disclosed. The device (10) includes a support body (20), a motion transmitting unit (25), an agent delivery system (30) and a guide housing (40). The motion transmitting unit (25) is movable relative to the support body (20). The agent delivery system (30) includes a needle (31) for extending into a subject and structure defining a conduit between the support body and the needle (31). The guide housing (40) has a flexible elongated body, and internal elongated passage and friction reducing material lining the passage. At least a portion of the motion transmitting unit (25) adjacent the needle (31) is slideably housed within the guide housing (40). The device (10) offers a surgeon improved ease of needle extension and retraction when the distal end of the endoscope is bent at acute angles. A surgical device for injecting a chemical agent within a subject for use in endoscopic injection therapies is disclosed. The device includes a support body, a motion transmitting unit, an agent delivery system and a guide housing. The motion transmitting unit is movable relative to the support body. The agent delivery system includes a needle for extending into a subject and structure defining a conduit between the support body and the needle. The guide housing has a flexible elongated body, an internal elongated passage and friction reducing material linin the passage. At least a portion of the motion transmitting unit adjacent the needle is slideably housed within the guide housing. The device offers a surgeon improved ease of needle extension and retraction when the distal end of the endoscope is bent at acute angles. L'invention concerne un dispositif chirurgical permettant d'injecter un agent chimique dans un sujet, et destiné à être utilisé dans des thérapies d'injections endoscopiques. Ce dispositif comprend un corps support, une unité de transmission de mouvement, un système d'administration d'agent et un boîtier guide. L'unité de transmission de mouvement est mobile par rapport au corps support. Le système d'administration d'agent comprend une aiguille destinée à être introduite dans un sujet et une structure définissant un conduit entre le corps support et l'aiguille. Le boîtier guide possède un corps allongé flexible, un passage allongé intérieur et un matériau diminuant le frottement recouvrant ce passage. Au moins une partie de l'unité de transmission de mouvement adjacente à l'aiguille est logée de façon coulissante dans le boîtier guide. Ce dispositif permet à un chirurgien d'introduire et de retirer plus facilement une aiguille lorsque l'extrémité distale de l'endoscope est pliée dans des angles aigus.