Devices and methods for contacting living tissue
AssigneeIsl, LLC
InventorsKent R. Gandola, Jerome K. Aarestad
Life of this patent
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Abstract
The present invention provides materials and methods for forming an interface between an appliance and living tissue using a foamed elastomeric material which contacts the tissue or similar surfaces. The elastomeric material is in the form of a durable and washable material that when applied to living tissue or similar surfaces displaces and flows in to non-conforming areas creating an air and/or water tight seal that substantially returns to an original shape when removed from the contact surface. The appliance may also include structural elements designed to optimize comfort, compliance and seal achieved through minimizing the pressure variation along the contact surface of the therapy device.
Claims12
A viscoelastic foam, comprising:
- a Shore 000 of between 1 and 40, as measured using the Standard Test Method for Rubber Property—Durometer Hardness ASTM D2240-15;
- a density (specific gravity) of between about 0.2 to 0.7 g/cm3;
- a level of tack of between about 0.2 and about 9 mJ/cm2 as measured using the Standard Test Method for Pressure-Sensitive Tack of Adhesives ASTM D2979-16;
- an elastic (storage) modulus of between about 1 kPa and about 15 kPa;
- and
- a viscous (loss) modulus of between about 0.8 kPa and about 7 kPa.
Dependencies are inferred from the claim text.