Implantable prosthetic or tissue expanding device Number:6,783,546 from the United States Patent and Trademark Office (PTO) owispatent A keratin hydrogel-filled implantable prosthetic device. One device is a breast implant for augmenting or reconstructing a human breast including an envelope containing a keratin hydrogel. Another device is an implant for the intervertebral disc space. One keratin hydrogel is formed from a solid precursor which forms a keratin hydrogel upon addition of water. One source of keratin is human hair. In one method, an envelope suitable for implantation and a solid keratin hydrogel precursor are provided. The solid can be in fibrous or powder form. The solid precursor can be inserted into the envelope interior. A small incision near the breast can be made and the envelope inserted into the incision. After insertion, water can be injected into the envelope interior, preferably through the incision and through a self-sealing port in the envelope. In one method, the implant is provided as a kit, with the envelope and keratin hydrogel provided. The hydrogel can be injected into the envelope either before or after insertion into the breast area. One kit has a powdered, keratin hydrogel precursor disposed within the envelope interior, awaiting the addition of water, preferably after insertion of the implant into the body. In another method, the implant can include an envelope with a hydrogel or hydrogel precursor already placed in the envelope.<H Implantable, prosthetic, Implantable, pro, 6783546.html, Patent, pto, 6783546

Title: Implantable prosthetic or tissue expanding device

Abstract: A keratin hydrogel-filled implantable prosthetic device. One device is a breast implant for augmenting or reconstructing a human breast including an envelope containing a keratin hydrogel. Another device is an implant for the intervertebral disc space. One keratin hydrogel is formed from a solid precursor which forms a keratin hydrogel upon addition of water. One source of keratin is human hair. In one method, an envelope suitable for implantation and a solid keratin hydrogel precursor are provided. The solid can be in fibrous or powder form. The solid precursor can be inserted into the envelope interior. A small incision near the breast can be made and the envelope inserted into the incision. After insertion, water can be injected into the envelope interior, preferably through the incision and through a self-sealing port in the envelope. In one method, the implant is provided as a kit, with the envelope and keratin hydrogel provided. The hydrogel can be injected into the envelope either before or after insertion into the breast area. One kit has a powdered, keratin hydrogel precursor disposed within the envelope interior, awaiting the addition of water, preferably after insertion of the implant into the body. In another method, the implant can include an envelope with a hydrogel or hydrogel precursor already placed in the envelope.

Patent Number: 6,783,546 Issued on 08/31/2004 to Zucherman, et al.

Inventors: Zucherman; James F. (San Francisco, CA), Hsu; Ken Y. (S.F., CA), Yerby; Scott (Montara, CA), Smith; Robert A. (Jackson, MS)
Assignee: Keraplast Technologies, Ltd. (San Antonio, TX)

Appl. No.: 09/815,387

Filed: March 22, 2001

Related U.S. Patent Documents


Application Number	Filing Date	Patent Number	Issue Date
394783	Sep., 1999	6371984

Current U.S. Class: 623/17.16 ; 623/17.12

Field of Search: 623/16.11-17.16

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