Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT



|                                                                |  |                                                  
|--------------------------------------------------------------- |  | -------------------------------------------------
|Subsidiary                                                      |  | State or Country of Incorporation or Organization
|                                                                | 
|ArthroCare (Australasia) Pty Ltd. f/k/a TiMax Surgical Pty Ltd. |  | Australia                                        
|                                                                | 
|ArthroCare (Deutschland) AG f/k/a ArthroCare (Deutschland) GmbH |  | Germany                                          
|                                                                | 
|ArthroCare (Hong Kong) Limited                                  |  | Hong Kong                                        
|                                                                | 
|ARTHROCARE CANADA LIMITED                                       |  | Canada                                           
|                                                                | 
|ArthroCare Corporation Cayman Islands                           |  | Cayman Islands                                   
|                                                                | 
|ArthroCare Costa Rica, S.R.L.                                   |  | Costa Rica                                       
|                                                                | 
|ArthroCare Europe Aktiebolog                                    |  | Sweden                                           
|                                                                | 
|ArthroCare France SARL                                          |  | France                                           
|                                                                | 
|ArthroCare Italy SRL                                            |  | Italy                                            
|                                                                | 
|ArthroCare Luxembourg, S.`a.r.l.                                |  | Luxembourg                                       
|                                                                | 
|ARTHROCARE SCANDINAVIA ApS                                      |  | Austria                                          
|                                                                | 
|ArthroCare UK Limited f/k/a ATLANTECH MEDICAL DEVICES LIMITED   |  | United Kingdom                                   
|                                                                | 
|Atlantech Medical Devices (UK) Limited                          |  | England                                          
|                                                                | 
|Atlantech medizinische Produkte Vertiebs-GmbH                   |  | Austria                                          
|                                                                | 
|Device Reimbursement Services, Inc.                             |  | Nevada                                           
|                                                                | 
|DiscoCare, Inc.                                                 |  | Delaware                                         
|                                                                | 
|Medical Device Alliance, Inc.                                   |  | Nevada                                           
|                                                                | 
|OC Acquisition Sub, LLC                                         |  | California