Assimilable hydrophilic prosthesis

Details Assimilable hydrophilic prosthesis Assimilable hydrophilic prosthesis

1977-08-29

1980-01-08

Padgett, Benjamin R.

Dentistry

Apparatus

Hand manipulatable implement

3 19, 433228, 128156, 128296, 128325, 264 41, 264 48, 264 86, 264 87, 521 61, 521 88, 521 90, 521 98, A61F 100, A61F 1300

Patent

active

041819837

ABSTRACT:
A porous, hydrophilic, assimilable prosthesis is formed by the removal of solvent, without substantial dimensional change, from a solution of (a), an assimilable polymer composed primarily of polymerized units of an alpha or beta hydroxy carboxylic acid, preferably but not necessarily those having 1 to 4 carbon atoms, and (b), a small amount of a physiologically acceptable wetting agent that is sufficient to impart hydrophilicity to the prosthesis. The preferred assimilable polymer is a polylactic acid. The preferred process for making the prosthesis involves the lyophilization of a solution of polylactic acid having a molecular weight of at least 100,000, weight average, at a concentration of at least 31/2% by weight of the solution of the polylactic acid. A variety of physiologically acceptable wetting agents is useful, a preferred class being the alkali metal soaps of fatty acids or of alkyl aryl sulfonic acids.

REFERENCES:
patent: 3463158 (1969-08-01), Schmitt et al.
patent: 3566871 (1971-03-01), Richter et al.
patent: 3797499 (1974-03-01), Schneider
patent: 3867190 (1975-02-01), Schmitt et al.
patent: 3875937 (1975-04-01), Schmitt et al.
patent: 3902497 (1975-09-01), Casey
patent: 3942532 (1976-03-01), Hunter et al.
patent: 3977406 (1976-08-01), Roth
patent: 3978855 (1976-09-01), McRae et al.
Kulkarni, R. K., et al., J. Biomed. Mater. Res., vol. 5, pp. 169-181 (1971).
Cutright, D. E., et al., Oral. Surg., vol. 32, pp. 165-173 (1971).

Affiliated with

Also associated with

Rating

Assimilable hydrophilic prosthesis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Assimilable hydrophilic prosthesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Assimilable hydrophilic prosthesis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1938986