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US 10,206,820 B2Granted
Epidermal down-growth barrier
AssigneeCochlear Limited
InventorMarcus Andersson
Life of this patent
Estimating the term…
Abstract
A percutaneous implant for reducing the risk of post-implant infection by reducing the likelihood of epidermal down-growth between the dermis of the skin and the implant. In one example, the implant comprises a barrier member between the epidermis and the dermis about the implant. In another example, a barrier is provided by removing a portion of the epidermis from the dermis about the implant.
Claims33
A percutaneous implant comprising:
- a body portion configured to extend through the skin of a recipient, the skin having an epidermis and a dermis, the body portion including a surface with an epidermis facing portion positioned to be on a same level with respect to a longitudinal axis of the body portion as the epidermis and a dermis interface positioned to contact the dermis when the percutaneous implant is implanted in the recipient;
- and
- a barrier member positioned around the body portion between the epidermis facing portion and the dermis interface to substantially separate the dermis from the epidermis at the surface of the body portion of the implant when the percutaneous implant is implanted,
- wherein the barrier member is configured to obtain total separation of the epidermis from the dermis at locations of the barrier member.
1 more element
A percutaneous implant comprising:
- a body portion configured to extend through the skin of a recipient, the skin having an epidermis and a dermis, the body portion including a surface with an epidermis facing portion positioned to be on a same level with respect to a longitudinal axis of the body portion as the epidermis and a dermis interface positioned to contact the dermis when the percutaneous implant is implanted in the recipient;
- and
- a barrier member positioned around the body portion between the epidermis facing portion and the dermis interface to substantially separate the dermis from the epidermis at the surface of the body portion of the implant when the percutaneous implant is implanted,
- wherein the barrier member is configured to resist skin attachment at a dermis facing side and an epidermis facing side.
1 more element
A percutaneous implant comprising:
- a body portion configured to extend through the skin of a recipient, the skin having an epidermis and a dermis, the body portion including a surface with an epidermis facing portion positioned to be on a same level with respect to a longitudinal axis of the body portion as the epidermis and a dermis interface positioned to contact the dermis when the percutaneous implant is implanted in the recipient;
- and
- a barrier member positioned around the body portion between the epidermis facing portion and the dermis interface to substantially separate the dermis from the epidermis at the surface of the body portion of the implant when the percutaneous implant is implanted,
- wherein the percutaneous implant is part of a non-bone anchored implant system.
1 more element
A percutaneous implant comprising:
- a body portion configured to extend through the skin of a recipient, the skin having an epidermis and a dermis, the body portion including a surface with an epidermis facing portion positioned to be on a same level with respect to a longitudinal axis of the body portion as the epidermis and a dermis interface positioned to contact the dermis when the percutaneous implant is implanted in the recipient;
- and
- a barrier member positioned around the body portion between the epidermis facing portion and the dermis interface to substantially separate the dermis from the epidermis at the surface of the body portion of the implant when the percutaneous implant is implanted,
- wherein the barrier member includes portions extending outward from the body portion that have a solid cross-section.
1 more element
A percutaneous implant comprising:
- a body portion configured to extend through the skin of a recipient, the skin having an epidermis and a dermis, the body portion including a surface with an epidermis facing portion positioned to be on a same level with respect to a longitudinal axis of the body portion as the epidermis and a dermis interface positioned to contact the dermis when the percutaneous implant is implanted in the recipient;
- and
- a barrier member positioned around the body portion between the epidermis facing portion and the dermis interface to substantially separate the dermis from the epidermis at the surface of the body portion of the implant when the percutaneous implant is implanted,
- wherein the barrier member is a temporary barrier.
1 more element
A percutaneous implant comprising:
- a body portion configured to extend through the skin of a recipient, the skin having an epidermis and a dermis, the body portion including a surface with an epidermis facing portion positioned to be on a same level with respect to a longitudinal axis of the body portion as the epidermis and a dermis interface positioned to contact the dermis when the percutaneous implant is implanted in the recipient;
- and
- a barrier member positioned around the body portion between the epidermis facing portion and the dermis interface to substantially separate the dermis from the epidermis at the surface of the body portion of the implant when the percutaneous implant is implanted, wherein
- the epidermis facing portion is an epidermis interface positioned to contact the epidermis and is free of contact with the barrier member.
1 more element
Dependencies are inferred from the claim text.