摘要:
A device and method for improving hydration of a biomaterial includes a syringe having a cavity therein and a distal opening, an end cap, and a wall operatively coupled to the end cap. The end cap has a distal plate with an inlet and is removably attached to the syringe to cover the distal opening. The wall is positioned proximate to the inlet and at least partially defines a volume in fluid communication with the inlet. An orifice extends through the wall and fluidly connects the volume to the cavity. A flow of a liquid component of biomaterial diffuses through the orifice and is introduced into a particulate component of biomaterial. As such, the liquid component of biomaterial hydrates the particulate component of biomaterial.
摘要:
Apparatus comprising: a chamber (4) having a chamber inlet (4a) and a chamber outlet (4b); a first inlet (21) for receiving a first gas stream; a second inlet (22) for receiving a second gas stream; a first outlet (26) for outputting the first gas stream to a first vacuum pump (7); a second outlet (27) for outputting the second gas stream to a second vacuum pump (8); a conduit network for connecting the first inlet to the first outlet and for connecting the second inlet to the second outlet such that, for each gas stream, first and second flow paths are defined between its respective inlet and outlet, the first flow path passing through the chamber inlet and the chamber outlet, and the second flow path by-passing the chamber; and means for routing the gas streams through the network such that when one gas stream flows along its first flow path, the other gas stream flows along its second flow path.
摘要:
A flow cell (1) has at least two inlet channels (6 to 9), each connectable with a reservoir (10 to 13) and controllable by means of valves (14 to 17) and ending in an inlet chamber (5). Each of the two ends (21, 22) of the inlet chamber (5) is connected with the discharge channel (18) by means of an outlet channel (19, 20). Thus, the old fluid remaining in the chamber is displaced into the discharge channel (18) by the newly supplied fluid. The dead time until the passing of the pure new fluid is short.
摘要:
A plate (10) supports a venturi (11) within a conduit (20) and divides the fluid flow stream into a first stream which flows through the venturi tube (11) and a second stream which bypasses the venturi tube (11). A variety of adjusting mechanisms are disclosed for varying the cross-sectional area of the bypass flow. The apparatus is adapted to allow the back pressure within the venturi tube (11) to force an increasing proportion of the flow stream to bypass the venturi tube (11) in order to maintain a relatively constant aspiration rate within the venturi tube. The adjustment mechanisms disclosed include a second plate (12), similar to the first plate (10), which is manually rotated and a blocking ring (60) which moves responsive to changes in rate of flow of the fluid flow stream. Helical passages (605) may also be provided at the outlet to promote mixing.
摘要:
A device and method for improving hydration of a biomaterial includes a syringe having a cavity therein and a distal opening, an end cap, and a wall operatively coupled to the end cap. The end cap has a distal plate with an inlet and is removably attached to the syringe to cover the distal opening. The wall is positioned proximate to the inlet and at least partially defines a volume in fluid communication with the inlet. An orifice extends through the wall and fluidly connects the volume to the cavity. A flow of a liquid component of biomaterial diffuses through the orifice and is introduced into a particulate component of biomaterial. As such, the liquid component of biomaterial hydrates the particulate component of biomaterial.