Sealing material for a medical implant
AssigneeCortronik GmbH
InventorsNicolas Degen, Sebastian Kaule, Sabine Illner, Stefanie Kohse, Niels Grabow, Klaus-Peter Schmitz
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Abstract
A sealing material suitable for a medical implant. The material includes a composite structure of a first component, a second component and a third component. The first component includes at least one biologically inert polymer. The second component includes a hydrogel, which swells up after contact with an aqueous solution by a first volume increase within a first time period. The third component includes a hygroscopic matrix, which swells up after contact with an aqueous solution by a second volume increase within a second time period. The second time period is shorter than the first time period.
Claims20
A sealing material for a medical implant, comprising a composite structure that comprises a first component, a second component and a third component, wherein
- the first component comprises at least one biologically inert polymer,
- the second component comprises a hydrogel, which swells up after contact with an aqueous solution by a first volume increase within a first time period, and
- the third component comprises a hygroscopic matrix, which swells up after contact with an aqueous solution by a second volume increase within a second time period,
- wherein the second time period is shorter than the first time period, wherein the first, second and third components each comprises a layer or thread that is separate from other ones of the first, second and third components, and
- wherein the sealing material has a layered construction, wherein the first component forms a core region of the sealing material, the second component forms a first layer which surrounds the core region, and the third component forms a second layer which surrounds the first layer.
A sealing material for a medical implant, comprising a composite structure that comprises a first component, a second component and a third component, wherein
- the first component comprises at least one biologically inert polymer,
- the second component comprises a hydrogel, which swells up after contact with an aqueous solution by a first volume increase within a first time period,
- the third component comprises a hygroscopic matrix, which swells up after contact with an aqueous solution by a second volume increase within a second time period,
- wherein the second time period is shorter than the first time period,
- wherein the first, second and third components each comprises a layer or thread that is separate from other ones of the first, second and third components, and
- wherein the second component comprises at least one substance for promoting endothelialisation.
A sealing material for a medical implant, comprising a composite structure that comprises a first component, a second component and a third component, wherein
- the first component comprises at least one biologically inert polymer,
- the second component comprises a hydrogel, which swells up after contact with an aqueous solution by a first volume increase within a first time period,
- the third component comprises a hygroscopic matrix, which swells up after contact with an aqueous solution by a second volume increase within a second time period,
- wherein the second time period is shorter than the first time period,
- wherein the first, second and third components each comprises a layer or thread that is separate from other ones of the first, second and third components, and
- wherein the third component comprises at least one substance having an anti-calcifying effect.
A sealing material for a medical implant, comprising a composite structure that comprises a first component, a second component and a third component, wherein
- the first component comprises at least one biologically inert polymer,
- the second component comprises a hydrogel, which swells up after contact with an aqueous solution by a first volume increase within a first time period,
- the third component comprises a hygroscopic matrix, which swells up after contact with an aqueous solution by a second volume increase within a second time period,
- wherein the second time period is shorter than the first time period,
- wherein the first, second and third components each comprises a layer or thread that is separate from other ones of the first, second and third components, and
- wherein the sealing material is in the form of a monofilament thread, a multifilament thread, a cordage, a weft knit, a warp knit, a braiding and/or a two-dimensional structure comprising multiple non-oriented or oriented fibres.
Dependencies are inferred from the claim text.