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| US5527291 | 24 May 1994 | 18 Jun 1996 | | Manual catheter placement device |
| US6183442 | 2 Mar 1998 | 6 Feb 2001 | Board of Regents of the University of Texas System | Tissue penetrating device and methods for using same |
| US6527778 | 9 Jan 2001 | 4 Mar 2003 | The Board of Regents of the University of Texas System | Tissue penetrating device and methods for using same |
| US7226450 | 8 Oct 2002 | 5 Jun 2007 | The Board of Regents of the University of Texas Systems | Tissue penetrating device and methods for using same |
