Title:
【発明の名称】インプラント補綴材用の生体浸透性ゲル
Document Type and Number:
Japanese Patent JPH05505541
Kind Code:
A
Abstract:
An improved bio-osmotic gel for filling implant lumens consisting substantially of an amount of a bio-compatible organic polymer and a solution of bio-compatible salt is disclosed which exhibits osmotic qualitites closely paralleling that of human body serum and improved radiolucency with respect to silicone oil and saline. The bio-osmotic gel can contain a polymer having the empirical formula [(CHCH2)2N(CH2)3CO]n i.e. polyvinylpyrrollidone. The bio-compatible salt can be made of a low Z value salt such as sodium bicarbonate, sodium acetate, or sodium lactate. The gel material should have an osmolarity between 250 and 350 milliosmoles and have an X-ray absorption under standard exposure approximately equal to that of breast tissue such that processed mammographic X-ray film will have an optical density of 1.2 to 1.3 and an average penetrance of between 9.2 and 30.0 milliroentgens.
Inventors:
Elsek, Robert A.
Beisang, Arthur Ay.
Beisang, Arthur Ay.
Beisang, Arthur Ay.
Beisang, Arthur Ay.
Application Number:
JP50623891A
Publication Date:
August 19, 1993
Filing Date:
March 20, 1991
Export Citation:
Assignee:
Bio-Plasty, Inc.
International Classes:
A61L27/00; A61L27/16; A61F2/12; A61L27/50; A61B19/00; (IPC1-7): A61L27/00; A61F2/12
Attorney, Agent or Firm:
Akira Asamura (3 outside)