Mixing and/or transferring device
A device for mixing a first substance and a second substance, or for transferring at least one of the substances, which are present in a first or second receptacle, the device including a first adapter with a circumferential wall, along which extends a cannula body, and a hollow-cylindrical section that is connected to the cannula body; a second adapter with a circumferential wall, along which extends a cannula body; and a hollow-cylindrical section that is connected to the cannula body; when the first and the second adapter are assembled, the hollow-cylindrical sections inter-engage in a liquid-tight manner, and the first and the second adapter are connected to each other in a detachably screwed manner.
1. A device for mixing or transferring a first substance and a second substance that are present, respectively, in a first and a second receptacle, comprising:
a first adapter having a circumferential wall, and being configured to accept the first receptacle, and along which extends, and which, at least in sections, surrounds a first cannula body, and a first hollow-cylindrical section connected to the first cannula body,
a second adapter having a circumferential wall, and being configured to accept the second receptacle, and along which extends, and which, at least in sections, coaxially surrounds, a second cannula body, and a second hollow-cylindrical section connected to the second cannula body,
wherein, in an assembled state, the first hollow-cylindrical section inter-engages with the second hollow-cylindrical section, and the first adapter and the second adapter are screwably and detachedly connected,
wherein each of the first and the second adapters comprises a hollow-cylindrical outer body with an exterior circumferential wall, and a partition wall extending perpendicularly to a longitudinal axis of the outer body,
wherein, when the first and second adapters are assembled together, a section, which has an inner thread, of the outer circumferential wall of one of the first and the second adapters surrounds a section, which has an external thread, of the outer circumferential wall of the other of the first and the second adapters, with inter-engaging threaded sections,
wherein the hollow-cylindrical outer body of at least one of the first and second adapters comprises an insert, having a circumferential wall, that accepts the first or the second receptacle, and
wherein the circumferential wall of the insert extends, at least in sections of the interior surface of the outer circumferential wall, spaced-apart from the interior surface of the outer circumferential wall.
2. The device according to claim 1 , wherein each of the first and second adapters comprises an insert with a circumferential wall that accepts the first or the second receptacle.
3. The device of claim 1 , wherein the circumferential wall of the insert, which is concentrically surrounded by the outer circumferential wall of the outer body comprises projections that radially extend into the interior of the insert for holding the receptacle, whereby the circumferential wall at least in the area of the projections extends spaced-apart relative to the interior side of the outer circumferential wall.
4. The device of claim 1 , wherein the insert comprises a bottom wall, which, when the insert is connected with the hollow-cylindrical outer body, is supported on the partition wall.
5. The device of claim 4 , wherein the circumferential wall of the insert is recessed in at least some areas between the bottom wall, or the step, and the radially inward protruding projection.
6. The device of claim 4 , wherein the bottom wall of the insert is supported on the partition wall via a filter element.
7. The device of claim 1 , wherein, from the bottom wall of the insert protrudes, extending in the opposite direction than the circumferential wall, a centering element, which, when the hollow-cylindrical outer body is connected to the insert, engages into an adapted acceptance in the partition wall or vice versa.
8. The device of claim 7 , wherein the centering element is configured as an annularly extending ledge element, which engages into an annularly extending recess.
9. The device of claim 1 , wherein, from the bottom wall of the insert originates the cannula body and/or from the partition wall of the hollow-cylindrical outer body originates the hollow-cylindrical section.
10. The device of claim 1 , wherein, in at least one of the first and second adapters, the effective cross section of the cannula body in the bottom wall is greater than the cross-section of a connecting opening leading to the hollow-cylindrical section that originates from the partition wall.
11. The device of claim 1 , wherein, when the first and second adapters have been screwed together, external surfaces of the first and second adapters form a substantially flush transitional surface.
12. The device of claim 11 , wherein the external surfaces of the first and second adapters are solid.
13. The device of claim 11 , wherein a gap extends between the external surfaces of the first and second adapters.
14. The device of claim 1 , wherein an exterior side of the bottom wall of the insert is structured.
15. The device of claim 14 , wherein the bottom wall is covered by a planar filter element.
16. The device of claim 1 , wherein the insert comprises a hollow-cylindrical first section extending on the bottom side and, via a step as transition, a second section of greater external diameter that forms the circumferential wall, and in that the step is supported on a projection that axially protrudes from the partition wall of the hollow-cylindrical outer body.
17. The device of claim 1 , wherein the insert is circumferentially connected to the hollow-cylindrical outer body in an airtight or liquid-tight manner.
18. The device of claim 1 , wherein on the bottom side, the insert is connected in a materially bonded manner to the hollow-cylindrical outer body, in particular by means of ultrasonic welding.
19. The device of claim 1 wherein from the partition wall of the hollow-cylindrical outer body that possesses the internal thread protrudes a male hollow-cylindrical section which engages liquid-tight or essentially liquid-tight with a female hollow-cylindrical section which protrudes from the partition wall of the external-thread-equipped outer body, when the first and second adapters have been screwed together, or vice versa.
20. The device of claim 19 , wherein the male hollow-cylindrical section is configured as a male Luer lock cone, and the female hollow-cylindrical section is configured as a female Luer lock cone.
21. The device of claim 1 wherein the hollow-cylindrical outer body and/or the insert are/is embodied as an injection-molded part.
22. The device of claim 1 wherein at least one of the hollow-cylindrical outer bodies possesses on the inside a cylindrical geometry and on the outside a geometry different from a cylindrical geometry.
23. The device of claim 22 , wherein the geometry that is different from a cylindrical geometry is a polygonal-column geometry.
24. The device of claim 1 , wherein at least one of the hollow-cylindrical outer bodies is manufactured in a two-component injection-molding process.
25. The device of claim 1 , wherein the at least one hollow-cylindrical outer body comprises an inner base body, which possesses a hollow-cylindrical geometry and which is partially over-molded.
26. The device of claim 25 , wherein the hollow-cylindrical geometry is partially over-molded to create a polygonal-column external geometry.
27. The device of claim 1 , wherein the first hollow-cylindrical section engages with the second hollow-cylindrical section in a liquid-tight manner.
28. The device of claim 1 , wherein the circumferential wall of the insert extends entirely around the interior surface of the outer circumferential wall.