The invention provides a drainage bag (colostomy, ileostomy or urostomy bag) comprising a bag of thermoplastic material having means to define an opening for receiving waste material from a stoma and means to secure the bag in place with the opening connected to the stoma, characterized in that at least...http://www.google.com.au/patents/US5989235?utm_source=gb-gplus-sharePatent US5989235 - Ostomy bag
