[54] FILTER POUCH FOR STONE AND TISSUE SAMPLE COLLECTION
[75] Inventors: Jeffrey E. Bark, Green Bay; Andrea Potokar, De Pera, both of Wis.
[73] Assignee: Microtek Medical, Inc., Columbus, Miss.
[21] Appl. No.: 558,926
[22] Filed: Nov. 13, 1995
Related U.S. Application Data
[63] Continuation of Ser. No. 174,668, Dec. 28, 1993, abandoned.
[51] Int. CI. A61M 1/00
[52] U.S. CI 604/317; 604/322; 604/356;
604/406; 600/573; 600/580
[58] Field of Search 604/317, 322,
604/326, 338, 339, 356, 357, 406, 277, 4; 128/DIG. 24, 760, 762, 767; 383/41,
66
