Sterile connector for the sterile transfer of a liquid medium
Various embodiments provide a connector for the sterile transfer of a liquid medium from a container to a bioprocess engineering system. The connector has two coupling devices. The coupling devices each have a housing and a control element which is adjustably mounted in the housing interior and forms a channel. The channel extends from a control element inlet opening to a control element outlet opening. The housings are able to be mechanically connected to one another and have a fluid inlet and a fluid outlet. The fluid outlet of one housing and the fluid inlet of the other housing overlap. The control elements are each adjustable from a starting position, into an operating position, in which the control element inlet opening is fluidically connected to the fluid inlet and the control element outlet opening is fluidically connected to the fluid outlet.
1. A sterile connector for the sterile transfer of a liquid medium from a liquid container to a bioprocess engineering system,
wherein the sterile connector has two coupling devices,
wherein the coupling devices each have a housing having a housing interior and a control element which is adjustably mounted in the housing interior and forms a channel, wherein the channel extends through the control element from a control element inlet opening to a control element outlet opening,
wherein the housing of one coupling device is configured to be mechanically connected to the housing of the other coupling device,
wherein each housing has a fluid inlet and a fluid outlet which connect the housing interior to the surroundings, wherein, in the mechanically connected state of the housings, the fluid outlet of one housing and the fluid inlet of the other housing overlap,
wherein, to produce a sterile fluid connection, in the mechanically connected state of the housings, the control elements are adjustable from a starting position, in which a fluid connection between the channel and the control element inlet opening on the one hand and between the channel and the control element outlet opening on the other hand is blocked, into an operating position, in which the control element inlet opening is fluidically connected to the fluid inlet and the control element outlet opening is fluidically connected to the fluid outlet,
wherein, in the mechanically connected state of the housing, an adjusting movement of one of the control elements between the starting position and the operating position is accompanied by a corresponding adjusting movement of the other control element,
wherein a gear train is provided, which, in the mechanically connected state of the housings, effects a synchronous adjustment of the two control elements between the starting positions and the operating positions.
2. The sterile connector as claimed in claim 1 , wherein, in the starting position, each channel extends in a region of the housing interior that is hermetically sealed with respect to the surroundings of the housing.
3. The sterile connector as claimed in claim 2 , wherein, in the starting position, the control element inlet opening and the control element outlet opening each face the housing inner wall of the respective housing.
4. The sterile connector as claimed in claim 1 , wherein, in the starting position, a portion of the respective control element closes the fluid inlet and/or a portion of the respective control element closes the fluid outlet of the respective housing in a hermetically tight manner, and/or
wherein, in the starting position, a portion of the respective control element extending around the control element inlet opening and/or a portion of the respective control element extending around the control element outlet opening is in contact in a hermetically sealing manner with the housing inner wall of the respective housing, and/or
wherein, in the starting position, a portion of the respective housing extending around the fluid inlet and/or a portion of the respective housing extending around the fluid outlet is in contact in a hermetically sealing manner with the respective control element.
5. The sterile connector as claimed in claim 1 , wherein the control element of one housing projects from the housing interior through the fluid outlet of the housing, and/or wherein the control element of the other housing projects from the housing interior through the fluid inlet of the housing.
6. The sterile connector as claimed in claim 1 , wherein the control element of one housing and the control element of the other housing, in the mechanically connected state of the housings, at least when the two control elements are in their operating position, are in contact with one another under preload.
7. The sterile connector as claimed in claim 1 , wherein, in the mechanically connected state of the housings, when the two control elements are in their operating position, a portion of one control element extending around the control element outlet opening and a portion of the other control element extending around the control element inlet opening are in contact with one another in such a manner that the respective channel is hermetically sealed with respect to the respective housing.
8. The sterile connector as claimed in claim 1 , wherein each control element is produced in part or completely, from an elastomer, and/or wherein each housing is produced in part from an elastomer.
9. The sterile connector as claimed in claim 1 , wherein, in the mechanically connected state of the housings, when the two control elements are in their operating position, in the case of both coupling devices in each case the fluid inlet and the control element inlet opening and/or the fluid outlet and the control element outlet opening overlap and the fluid outlet of one housing and the fluid inlet of the other housing overlap.
10. The sterile connector as claimed in claim 9 , wherein, in the mechanically connected state of the housings, when the two control elements are in their operating position, the two fluid inlets, the two fluid outlets and the two channels are oriented coaxially with one another.
11. The sterile connector as claimed in claim 1 , wherein the adjusting movement of each control element between its starting position and its operating position is a rotational movement.
12. The sterile connector as claimed in claim 1 , wherein the adjusting movement of each control element between its starting position and its operating position is limited in the starting position and/or operating position via a stop.
13. The sterile connector as claimed in claim 1 , wherein the fluid inlet of one housing and the fluid outlet of the other housing is configured to be connected or is connected to a flexible tube or a pipe for the delivery of the liquid medium, and/or wherein the fluid outlet of the other housing is fluidically coupled via the flexible tube or the pipe with the bioprocess engineering system.
14. The sterile connector as claimed in claim 1 , wherein the two housings are configured to be connected together in a form-fitting manner.
15. A packaging arrangement having a packaging and having the sterile connector as claimed in claim 1 sterile packaged therein.
16. The packaging arrangement as claimed in claim 15 , wherein the control element of the coupling device sterile packaged in the packaging is in its starting position, and wherein there is additionally sterile packaged in the packaging the liquid container, which is fluidically coupled with the coupling device, or there is sterile packaged the bioprocess engineering system which is fluidically coupled with the coupling device.
17. A method of transferring liquid medium using the packaging arrangement as claimed in claim 15 , for the sterile transfer of the liquid medium from the liquid container to the bioprocess engineering system comprising:
removing the packaging,
after removing the packaging, mechanically connecting the housings to one another,
after mechanically connecting the housings, adjusting the control elements each from the starting position, in which the fluid connection between the channel and the control element inlet opening on the one hand and between the channel and the control element outlet opening on the other hand is blocked, into the operating position, in which the control element inlet opening is fluidically connected to the fluid inlet and the control element outlet opening is fluidically connected to the fluid outlet, and
transferring the liquid medium from the liquid container to the bioprocess engineering system when in the operating position of the control elements.
18. The method as claimed in claim 17 , wherein at least one of the coupling devices is produced at least in part from a plastics material.
19. A coupling device of a sterile connector for the sterile transfer of a liquid medium from a liquid container to a bioprocess engineering system,
wherein the coupling device has a housing having a housing interior and a control element which is adjustably mounted in the housing interior and forms a channel, wherein the channel extends through the control element from a control element inlet opening to a control element outlet opening,
wherein the housing of the coupling device is configured to be mechanically connected to the housing of a further coupling device of the sterile connector,
wherein the housing has a fluid inlet and a fluid outlet which connect the housing interior to the surroundings, wherein, in the mechanically connected state of the housings, the fluid outlet of the housing of the coupling device and the fluid inlet of the housing of the further coupling device are configured to be brought to overlap,
wherein, to produce a sterile fluid connection, in the mechanically connected state of the housings, the control element is adjustable from a starting position, in which a fluid connection between the channel and the control element inlet opening on the one hand and between the channel and the control element outlet opening on the other hand is blocked, into an operating position, in which the control element inlet opening is fluidically connected to the fluid inlet and the control element outlet opening is fluidically connected to the fluid outlet,
wherein, in the mechanically connected state of the housing, an adjusting movement of one of the control elements between the starting position and the operating position is accompanied by a corresponding adjusting movement of the other control element,
wherein a gear train is provided, which, in the mechanically connected state of the housings, effects a synchronous adjustment of the two control elements between the starting positions and the operating positions.