Blood component restoration apparatus

Claim 1

A blood component restoration apparatus comprising: an exsanguinating needle; an exsanguinating tube and a blood component supplying tube, each connected at one end to said exsanguinating needle; a blood component discharging tube; an exsanguinating bag connected to the other end of said exsanguinating tube and connected to one end of said blood component discharging tube; and first and second connecting members respectively on the other, front end of said blood component discharging tube and the other, front end of said blood component supplying tube, said first and said second connecting members thereby being able to be opposed to each other, each of said first and second connecting members having an end surface with at least two guide pins in one of the thus-opposed end surfaces of said first and said second connecting members, said guide pins then extending in an axial direction of said first and said second connecting members, and at least two guide holes in the other of said opposed end surfaces for receiving respective ones of said guide pins, said guide pins and guide holes being located at different radial distances from the centers of said end surfaces therewith, one of said first and second connecting members having a pipe-like portion and the other one of said members having a sleeve-like portion for insertion within the inner peripheral surface of said pipe-like portion, one of said inner peripheral surface of said pipe-like portion and said sleeve-like portion having one of at least one guide groove and at least one guide projection and the other of said portions having the other for slidable contact with each other when said sleeve-like portion is inserted within said inner peripheral surface of said pipe-like portion, the guide groove and guide projection extending in the axial direction of the portions therewith.