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| Number | Title | Issue Date |
| 4136700 | Neurosonic aspirator Apparatus for use in surgically removing tumorous neurological tissue comprises a handpiece in which a tool tip vibrating transversely to its long axis in the ultrasonic range, is mounted an irrigation fluid outlet for introducing fluid adjacent the tool ... | 01/30/1979 |
| 4016882 | Neurosonic aspirator and method Method and apparatus are disclosed for use in surgically removing tumorous neurological tissue which apparatus comprises a handpiece mounting a hollow tool tip vibrating transversely to its long axis in the ultrasonic range, means for introducing fluid ad... | 04/12/1977 |
