Textured surfaces for breast implants
AssigneeEstablishment Labs S.A.
InventorsArdeshir Bayat, Ernie Hill, Daniel Kyle, Antonios Oikonomou
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Abstract
The invention provides new devices for implantation in a patient having irregular textured surfaces, which devices show significantly improved cellular response compared to conventional smooth and textured implants, indicating that significantly improved biocompatibility would be achieved in vivo. Methods for making such new devices and surface textures are also disclosed.
Claims20
An implant comprising an outermost textured surface having, at an area scale of 1 mm×1 mm:
- a mean surface roughness Sa value of from 2 μm to 12 μm;
- a root mean square height Sq value of from 4 μm to 15 μm;
- and
- a mean surface skewness Ssk value of from −1.0 to +1.0;
- wherein the surface comprises silicone.
An implant comprising an outermost textured surface having, at an area scale of 1 mm×1 mm:
- a mean surface roughness Sa value of from 2 μm to 12 μm;
- a root mean square height Sq value of from 2 μm to 30 μm;
- a mean surface skewness Ssk value of from −1.0 to +1.0;
- and
- a maximum peak height to trough depth Sz value greater than 30 μm;
- wherein the surface comprises silicone;
- and
- wherein the implant is a breast implant.
An implant comprising an outermost textured surface having, at an area scale of 1 mm×1 mm:
- a mean surface roughness Sa value of from 2 μm to 12 μm;
- a root mean square height Sq value of from 2 μm to 30 μm;
- a mean surface skewness Ssk value of from −1.0 to +1.0;
- and
- a maximum peak height to trough depth Sz value from 10 μm to 80 μm;
- wherein the surface comprises polydimethylsiloxane;
- and
- wherein the implant is a breast implant.
Dependencies are inferred from the claim text.