| 摘要 |
In a connecting device for fluid conduits for medical purposes a coupling housing (1) comprises at least one conduit connector (2), whereby a valve body (3), which is contained in the coupling housing, may be moved between a first and a second position for closing and opening respectively of said circuit connector. A connecting unit (7) is insertable into the coupling housing and then connectable thereto by a defined rotational movement. The connecting unit (7) comprises engaging means (9) which when inserted into the coupling housing engage the valve body (3) for rotational cooperation therewith, whereby the valve body (3) is turned between the first and the second position when said defined turning movement is made. The main feature of the invention is that an integral sealing nipple on the connecting unit with its outer surface (13a) cooperates with a ring shaped seat surface (13b) which is integrally arranged in a recess in the valve body. The valve body (3) further comprises resilient fastening projections (33) for snap-in cooperation with snap-in recesses (14) in the coupling housing (1). The connecting device according to the invention provides safe connection of fluid conduits to an outer circuit, which may be connected to the blood stream of a patient. It also provides an indication that the joining of a connecting hose to a circuit hose has been made in a correct manner. |
