Method and means for fabricating surgical sponges

Details Method and means for fabricating surgical sponges Method and means for fabricating surgical sponges

1974-05-15

1976-05-11

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

128296, 156191, 156217, 156250, 156270, 156457, 156580, 242 60, 242 671R, B29C 2708

Patent

active

039560449

ABSTRACT:
Surgical sponge material is unwound from a spool and fed onto a horizontal support where it is cut to the proper length, folded once by means of a vertically reciprocable mandrel, and held in an upwardly open cavity between the two tines of a rotatable fork. The fork rolls the sponge in a cylindrical portion of the cavity to form the sponge on the tines of the fork. A pusher strips the sponge from the tines of the fork and moves it into a trough where an ultrasonic welding horn seals the free end of the sponge material to prevent it from unraveling. The sponge material is preferably woven from cotton or the like but includes one or more synthetic threads of thermoplastic material to facilitate the ultrasonic welding step.

REFERENCES:
patent: 831726 (1906-09-01), Long
patent: 2933262 (1960-04-01), Fish
patent: 2972350 (1961-02-01), Deker
patent: 3558381 (1971-01-01), Colianni
patent: 3575752 (1971-04-01), Carpenter
"New: No Thread, No Needle Ultrasonic Sewing", Ultrasonic News, Nov. 1970.

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