Methods of forming bioabsorbable objects from polyvinyl alcohol

Plastic and nonmetallic article shaping or treating: processes – Removal of liquid component or carrier through porous mold... – By direct application of vacuum or pneumatic pressure

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

264120, 264126, 264129, 264185, 264299, 264547, 264553, B29B 1112, B29C 4314, B29C 4356

Patent

active

053586778

ABSTRACT:
Method for forming polyvinyl alcohol (PVA) into surgical elements include forming a mixture of PVA and water into a film by vacuum pressing with a first force, heating, applying a second force two to two hundred times the firs force, drying the film to remove water to a content of less than about 10% by weight based on the weight of the film, and molding the film into a desired shape.

REFERENCES:
patent: 2072302 (1937-03-01), Herrmann et al.
patent: 2138751 (1938-11-01), Vohrer
patent: 2146295 (1939-02-01), Hermann et al.
patent: 2239718 (1941-04-01), Izard
patent: 2265283 (1941-12-01), Hermann et al.
patent: 3607812 (1971-09-01), Takigawa et al.
patent: 3858379 (1975-01-01), Graves et al.
patent: 3882196 (1975-05-01), Hanke
patent: 3922432 (1975-11-01), Lindgren et al.
patent: 3960150 (1976-06-01), Hussain et al.
patent: 4124677 (1978-11-01), Saijo et al.
patent: 4372311 (1983-02-01), Potts
patent: 4493807 (1985-01-01), Vyvial et al.
patent: 4705039 (1987-11-01), Sakaguchi et al.
patent: 4743258 (1988-05-01), Ikada et al.
patent: 4857069 (1989-08-01), Kira
patent: 4863472 (1989-09-01), Tormala et al.
patent: 4871410 (1989-10-01), Bonnebat et al.
patent: 5002526 (1991-03-01), Herring
patent: 5137969 (1992-08-01), Marten et al.
Experimental Nonsuture Microvascular Anastomosis Using A Soluble PVA Tube And Plastic Adhesive, Yamaguchi et al., Journal of Microsurgery, Nov./Dec. 1979.
Elvanol Product Literature, DuPont Polymers, Dec. 1990.
Airvol Polyvinyl Alcohol Product Literature, Air Products and Chemcials Inc., 1991.
Kirk-Othmer Encyclopedia of Chemical Technology, vol. 23, pp. 848-864, John Wiley & Sons, 1983.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Methods of forming bioabsorbable objects from polyvinyl alcohol does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods of forming bioabsorbable objects from polyvinyl alcohol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods of forming bioabsorbable objects from polyvinyl alcohol will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-133368

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.