Abstract: Bioactive implant for myocardial regeneration and ventricular chamber support including an elastomeric microporous membrane. The elastomeric microporous membrane being at least one non-degradable polymer and at least one partially degradable polymer. The non-degradable polymer is selected from polyethylacrylate and polyethylacrylate copolymerized with a hydroxyethylacrylate comonomer. The partially degradable polymer is selected from caprolactone 2-(methacryloyloxy)ethyl ester and caprolactone 2-(methacryloyloxy)ethyl ester copolymerized with ethylacrylate. The elastomeric microporous membrane further includes a nanofiber hydrogel, and cells. The bioactive implant, having one or two helical loops, contributes to the restauration of the heart conical shape.

Abstract: A radial compressor stage includes: an impeller, rotatable relative to a stator, the impeller having multiple impeller blades on a rotor side; a diffuser positioned in a flow direction downstream of the impeller, the diffuser having multiple guide blades on the stator side; an impeller side gap formed between the impeller and the stator; and an intermediate flow channel extending between the impeller and the diffuser. A gap is formed between an outer edge of a downstream back side of the impeller and an opposite inner edge of the stator, the gap being sealed via a seal such that the seal seals the impeller side gap from the intermediate flow channel.

Abstract: A radial compressor stage includes an impeller with multiple impeller blades on the rotor side and a diffuser with multiple guide blades on the stator side positioned downstream of the impeller. Between the impeller and the stator an impeller side gap is formed. Flow inlet edges of the guide blades on the stator side lie on a first circle contour such that the flow inlet edges of all guide blades on the stator side have an identical spacing to the flow inlet edges of the respective adjacent guide blades. Flow outlet edges of the guide blades on the stator side lie on a second circle contour such that in at least one first circumferential position the flow outlet edge of the respective guide blade on the stator side has a spacing to the flow outlet edge of at least one adjacent guide blade other than in second circumferential positions.

Abstract: Bioactive implant for myocardial regeneration and ventricular chamber support including an elastomeric microporous membrane. The elastomeric microporous membrane being at least one non-degradable polymer and at least one partially degradable polymer. The non-degradable polymer is selected from polyethylacrylate and polyethylacrylate copolymerized with a hydroxyethylacrylate comonomer. The partially degradable polymer is selected from caprolactone 2-(methacryloyloxy)ethyl ester and caprolactone 2-(methacryloyloxy)ethyl ester copolymerized with ethylacrylate. The elastomeric microporous membrane further includes a nanofiber hydrogel, and cells. The bioactive implant, having one or two helical loops, contributes to the restauration of the heart conical shape.