Ge Healthcare Bio-sciences Ab

Amersham Biosciences Ab

Patrik Kallback

Owe Salven

Anders Wilen

Mattias Vangbo

Marten St Jernstrom

Jan Kranse

A rotary valve comprising a stator with an inner stator face, and a rotor with an inner rotor face arranged in sealing contact with the inner stator face, the rotor is rotatably movable to a plurality of rotor positions about a rotational axis relative to the inner stator face, the stator comprises a plurality of connection ports each being in fluidic contact with a corresponding valve orifice at the inner stator face and the rotor comprises two or more interconnection paths for selective fluidic interconnection of said valve orifices with respect to the rotor position. Wherein the stator comprises, a main inlet port, a main outlet port, a first component feed port, a first component return port, a second component feed port, a second component return port, and wherein the interconnection paths in the rotor are arranged to: &#x2014;in a first rotor position interconnect the main inlet port with the main outlet port, &#x2014;in a second rotor position interconnect the main inlet port with the first component feed port and the first component return port with the main outlet port, &#x2014;in a third rotor position interconnect the main inlet port with the first component feed port, the first component return port with the second component feed port, and the second component return port with the main outlet port, and &#x2014;in a fourth rotor position interconnect the main inlet port with the second component feed port and the second component return port with the main outlet port.

Random access rotary valve

A rotary valve for selectively connecting at least one component () into a fluid path. According to the invention the inner stator face () comprises orifices (--) and said inner rotor face () comprises at least a first groove (), a second groove (), and a third groove () so arranged that the rotary valve can take at least three different rotary positions, in which either both components are bypassed, only one of the components is connected and the other bypassed or both components are connected to a main flow.

A connector is provided for selectively coupling one or more lines or wires () to a receiving and/or transporting device (). The connector comprises at least one line or wire receiving ferrule () having a plurality of line and/or wire receiving holes ('-&#x2033;) each capable of receiving one of said one or more lines or wires (), wherein said connector further comprises a body () for receiving said ferrule () and clamping means () for exerting a force on said ferrule () in order to simultaneously exert a line or wire clamping force on all said line and/or wire receiving holes (&#x2032;-&#x2033;). In this way all the fluid lines or wires can be clamped at the same time.

Connector

The present invention relates to valves with small dead volumes. A valve in accordance with the present invention has a ferrule () which receives a plurality of fluid lines () which lead to outlets on an end surface () of said ferrule () and a movable selector body () which has a fluid groove (A) on a surface () which is in contact with the end surface () of said ferrule (). Means are provided for exerting a clamping force on said ferrule () in order to simultaneously clamp all the fluid lines ().

Growing community of inventors

Uppsala, Sweden

Patrik Kallback