| Investor Name | Invest Money | Lead Investor | Propotion | |
|---|---|---|---|---|
| Boston Scientific | - | - | - | Detail |
| Sorrento Ventures | - | - | - | Detail |
| Versant Ventures | - | - | - | Detail |
| Announced Date | Round | Money Raised | Investors | |
|---|---|---|---|---|
| Jul 3, 2006 | Series D | $ 31M | Boston Scientific,Versant Ventures | Detail |
| Oct 12, 2005 | Series C | $ 15M | Boston Scientific,Versant Ventures | Detail |
| Nov 21, 2003 | Series B | $ 29M | Versant Ventures | Detail |
| Jan 1, 2001 | Series A | 0 | Versant Ventures | Detail |