| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple and efficient electrode assembly for an electrosurgical instrument, while still satisfying safety and reliability standards.SOLUTION: An electrode assembly for an electrosurgical instrument includes an electrode tip 4 mounted on an elongate electrode stem 5, and an insulating housing 3, the housing 3 having an elongate bore 8 formed therethrough. The bore 8 is such that the electrode stem 5 can be received within the bore 8 with the electrode tip 4 extending from the distal end of the housing 3 and a proximal portion 9 of the stem 5 extending from the proximal end of the housing 3. An electrical lead 10 is located adjacent the proximal portion 9 of the stem 5, and a mass 11 of electrically conductive material forms an electrical connection between the lead 10 and the electrode stem 5. The mass 11 of electrically conductive material is of such a size that in addition to forming the electrical connection it also forms a mechanical stop preventing the electrode stem 5 from being moved distally with respect to the insulating housing 3.SELECTED DRAWING: Figure 2 |
