Exhibit 21.1
SUBSIDIARIES OF REGISTRANT
| Name | Jurisdiction of Organization | Percentage of Ownership | ||
| Direct Subsidiaries | ||||
| CardioVentures Inc. | Delaware | 100% | ||
| Avra IP Holdings, Inc. | Delaware | 100% | ||
| SSI IP Holdings, Inc. | Delaware | 100% | ||
| Indirect Subsidiaries | ||||
| Otto Pvt. Ltd. | Bahamas | 100% owned by CardioVentures Inc. | ||
| Sudhir Srivastava Innovations Pvt. Ltd. | India |
91.60% owned directly by Otto Pvt. Ltd.; 7.15% owned directly by the Registrant; and 1.25% owned directly by CardioVentures Inc. | ||