Saline implant having single valve with primary and secondary cl

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Breast prosthesis – Implantable

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Details

623 2367, 623 2368, 623 1111, A61F 202

Patent

active

061622516

ABSTRACT:
An implant that includes an envelope, a saline based fill material in the envelope, and a single valve. The envelope is formed by a mandrel dipping process and includes an opening formed by a support rod for the mandrel. To remove the envelope from the mandrel, the opening is stretched over the mandrel. This opening, a natural port, is sealed by a single valve structure. The valve structure includes the valve through which the saline based fill material is introduced. The valve is two piece, and the two pieces mechanically interlock to bias and draw a diaphragm tightly against a valve seat, which provides a primary resilient closure for the valve. The valve further includes a secondary resilient closure where two confronting faces form a slit through which a filling tube is inserted and where end portions of the two confronting faces are bonded to each other to minimize the chances of the slit tearing at its ends.

REFERENCES:
patent: 3599681 (1971-08-01), Hall
patent: 4433440 (1984-02-01), Cohen
patent: 4643733 (1987-02-01), Becker
patent: 4685447 (1987-08-01), Iverson et al.
patent: 5456716 (1995-10-01), Iversen et al.
patent: 5507808 (1996-04-01), Becker
patent: 5865807 (1999-02-01), Blake, III
patent: 6079432 (2000-06-01), Paradis

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