초록 ▼

A method for obstructing channels, ducts and other hollow spaces in human and animal bodies is disclosed comprising inserting a device having a portion thereof adapted to swell at least 20% in size when in contact with the fluid of the human or animal body, the device being in a shape matching and c

A method for obstructing channels, ducts and other hollow spaces in human and animal bodies is disclosed comprising inserting a device having a portion thereof adapted to swell at least 20% in size when in contact with the fluid of the human or animal body, the device being in a shape matching and cooperating with the channel to be obstructed.

대표청구항 ▼

A method of occluding a body reproduction duct of an animal comprising the steps of (1) inserting a water-swellable contraceptive hydrogel article into said body reproduction duct; (2) bringing said hydrogel into contact with animal tissue fluid; (3) allowing said hydrogel to swell to an extent of a

A method of occluding a body reproduction duct of an animal comprising the steps of (1) inserting a water-swellable contraceptive hydrogel article into said body reproduction duct; (2) bringing said hydrogel into contact with animal tissue fluid; (3) allowing said hydrogel to swell to an extent of at least 40% up to 300% of its original size and thereby (4) contacting and impinging upon the body duct in which said device is inserted, said device being substantially completely inert to said body fluid and the body tissue with which it is in contact, having a cross-sectional configuration corresponding to that of said reproduction duct and an indicator removal thread secured thereto.