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US 9,804,134 B2Granted
Connector unit and connecting system for connecting capillaries, in particular for high-performance liquid chromatography
AssigneeDionex Softron GmbH
InventorsDaniel Bürger, Michael Schadl
Life of this patent
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Abstract
The invention relates to a connector unit for connecting capillaries, in particular for high-performance liquid chromatography, wherein a sealing element sealing the capillary protrudes at least partially into the interior of the capillary, while a portion of the sealing element that protrudes axially from the capillary can be subjected to a compressive force that is introduced via the capillary to obtain an axial or radial plastic and/or elastic deformation.
Claims21
A connector unit for connecting capillaries comprising:
- a) a connector housing which has an axial bore,
- b) a capillary which runs along a capillary axis and which has an inner diameter and which projects through the axial bore of the connector housing,
- c) a sealing element,
- d) a front end of the capillary is sealed off with an elastic and/or plastic deformation of the sealing element with respect to a pilot bore of a bushing unit which is releasably connected to the connector housing,
- e) wherein, in a connected state of the connector unit and the bushing unit, the capillary projects into the pilot bore and is situated with the front end opposite, and substantially in alignment with, a bushing capillary or a bushing capillary opening of the bushing unit,
- f) wherein the sealing element has a first sealing section and a second sealing section, wherein, at a foremost section of the capillary, the first sealing section extends into an interior of the capillary, and
- g) a section of an insert element is arranged within the first sealing section to support the first sealing section in a radial direction.
4 more elements
Dependencies are inferred from the claim text.