Method of fabricating a moisture-expandable prosthesis

Details Method of fabricating a moisture-expandable prosthesis Method of fabricating a moisture-expandable prosthesis

1977-03-03

1978-06-20

Kucia, Richard R.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264320, 264324, 264343, B29D 2700

Patent

active

040962300

ABSTRACT:
A hollow-cylindrical tube of dehydrated, regenerated cellulose sponge material is tightly compressed to provide an elongate member of minimal diameter having sufficient rigidity to be inserted endwise into a body opening where it will, when moistened, expand radially whereby to substantially engage the inner peripheral walls of the opening for securing it against accidental or unintentional dislodgement therefrom. When used in association with an ear canal an axial opening through the expanded member permits sound waves to reach the ear drum.

REFERENCES:
patent: 2134930 (1938-11-01), Reynolds
patent: 2286817 (1942-06-01), Knight
patent: 2433675 (1947-12-01), Parish
patent: 2444528 (1948-07-01), Popper

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