Inducing analgesia by implantation of cells releasing neuroactive substances
Patent 4753635 Issued on June 28, 1988. Estimated Expiration Date: 
May 23, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 23, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesEnkephalin-like compounds in bovine adrenal medulla Encapsulation of live animal cells Enzyme-resistant opiate pentapeptides Enkephalin-like compounds in bovine adrenal medulla Patent #: 4388236 InventorsApplicationNo. 06/866479 filed on 05/23/1986US Classes:604/522, Introduction of biologically derived compounds (i.e., growth hormones or blood products) including cells514/818, ANESTHETIC, LOCAL604/512, For anesthetizing patient604/891.1Implanted dynamic device or systemExaminersPrimary: Rosenbaum, C. FredAssistant: Rose, Sharon Attorney, Agent or FirmInternational ClassesA61K 35/12 (20060101)A61F 2/02 (20060101) AbstractA method of inducing analgesia or reducing pain is described. The method involves implanting in the central nervous system of a host susceptible to pain, living material capable of releasing effective amount of analgesic substance when interacted with a stimulus which induces said material to release analgesic amount of said substance. The procedure described herein reduces sensitivity to intractable pain.Other References
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