Percutaneous access device and method for implanting same
A percutaneous access device (PAD) is provided with a sleeve or separable member which may be detached from the device to enable the culturing of a multilayer fibroblast coating on the member in a stable and undisturbed environment. The member is constructed so that when it is assembled into the device and the device is implanted in a patient, the cultured coating of the member is exposed to the patient\'s dermis whose fibroblasts will, after a relatively short healing period, merge with the fibroblasts of the coating to form a barrier layer interlocked with the member to prevent epidermal ingrowth or marsupialization of the implanted device. Implantation techniques for further facilitating the formation of the dermal barrier are also disclosed.
Kantrowitz; Adrian (Pontiac, MI), Freed; Paul S. (Bloomfield Hills, MI), Vaughan; Frizell L. (Ann Arbor, MI), Bernstein; Isadore A. (Ann Arbor, MI), Gray; Robert H. (Ann Arbor, MI)
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