Abstract: The present invention is directed to an innovative pedicle probe that uses a force-sensing electromechanical system coupled with haptic and visual feedback. The probe of the present invention reduces the rate of pedicle screw breaches during spinal fusion surgery. The probe provides an effective guidance system to aid surgeons in detecting and preventing cortical bone breaches, thereby minimizing risk of intraoperative injury to the patient. Moreover, the probe invention decreases surgeon reliance on intraoperative radiation, reducing harmful exposure to both patients and surgeons.

Abstract: A method for managing prepaid accounts. A prepaid account is established for an account holder who deposits funds into the account. A virtual account number is issued for the prepaid account. The virtual account number is compatible with a standardized credit transaction system. Use of the virtual account number is limited to transactions placed over the Internet and to transactions between the prepaid account and another prepaid account. A physical credit card for the prepaid account may also be issued to the account holder. Such a credit card has a card account number which is different than the virtual account number. The card account number is also compatible with the standardized credit transaction system. The card account number may also include use limitations.