| US 7,588,046 B1 | ||
| Dosage control apparatus | ||
| John H. Erickson, Plano, Tex. (US) | ||
| Assigned to Advanced Neuromodulation Systems, Inc., Plano, Tex. (US) | ||
| Filed on Feb. 25, 2005, as Appl. No. 11/65,726. | ||
| Application 11/065726 is a continuation of application No. 10/331425, filed on Dec. 30, 2002, granted, now 6,880,564. | ||
| Claims priority of provisional application 60/412365, filed on Sep. 20, 2002. | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. F16K 31/06 (2006.01) | ||
| U.S. Cl. 137—1 [251/129.15; 251/129.21; 604/891.1] | 20 Claims |
| 9. A method for delivering a treatment solution to a desired therapeutic area comprising:
providing a valve movably operable to modulate flow of a treatment solution through a core;
providing an induction coil operable to induce movement of said valve;
providing energy collection circuitry couplable to said induction coil;
applying electric current to said induction coil generating a magnetic field thereby moving said valve; and
coupling said energy collection circuitry to said induction coil when electric current is removed from said induction coil,
thereby recovering magnetic field energy.
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