Surgical stapling apparatus with powered articulation

{
  "publication_number": "US9700314B2",
  "country": "US",
  "kind": "B2",
  "title": "Surgical stapling apparatus with powered articulation",
  "abstract": "The surgical stapling apparatus includes a handle assembly, an elongated body extending distally from the handle assembly, and an articulation mechanism for articulating a tool assembly. The articulation mechanism includes a first gear rotatably mounted on a transmission shaft and configured to engage a second gear, a clutch interconnecting the second gear and a main shaft; and a yoke shaft coupled to the main shaft and adapted to linearly advance a J-channel, the J-channel operatively connected to an articulation link. A motor assembly may rotate the transmission shaft of the articulation mechanism. Alternatively, the articulation mechanism may include an articulation knob. Users may manually rotate the articulation knob to articulate the tool assembly of the surgical stapling apparatus.",
  "claims": [
    "1. A method of manipulating a tool assembly of a surgical device, the method comprising: rotating a knob to rotate a transmission shaft of the surgical device; and rotating the knob to disengage a clutch of the surgical device to prevent back driving from a motor assembly of the surgical device.",
    "2. The method according to claim 1, further comprising rotating the knob to articulate the tool assembly.",
    "3. The method according to claim 1, wherein rotating the knob to rotate a transmission shaft of the surgical device includes manually rotating the knob to rotate the transmission shaft.",
    "4. The method according to claim 1, further comprising interconnecting the motor assembly and the transmission shaft.",
    "5. The method according to claim 1, further comprising reducing a rotation speed of the motor assembly using a first gear and a second gear.",
    "6. The method according to claim 5, further comprising transferring rotation of the second gear to a main shaft of the surgical device.",
    "7. The method according to claim 6, further comprising engaging the clutch to transfer rotation of the second gear to the main shaft.",
    "8. The method according to claim 7, further comprising biasing at least one of the first gear and the second gear into engagement with one another.",
    "9. The method according to claim 1, further comprising rotating a main shaft of the surgical device to rotate a yoke shaft of the surgical device.",
    "10. The method according to claim 9, further comprising rotating the yoke shaft to linearly advance an articulation link of the surgical device.",
    "11. The method according to claim 10, further comprising rotating the yoke shaft to linearly advance a frame of the surgical device.",
    "12. The method according to claim 11, further comprising moving a pin within a slot in the frame.",
    "13. The method according to claim 12, wherein movement of the pin within the slot causes linear translation of a J-channel of the frame.",
    "14. The method according to claim 13, wherein linear translation of the J-channel causes advancement of an articulation link of the surgical device."
  ],
  "cpc": [
    "A61B 17/068",
    "A61B 17/064",
    "A61B 17/0643",
    "A61B 17/0644",
    "A61B 17/0682",
    "A61B 17/0686",
    "A61B 17/072",
    "A61B 17/07207",
    "A61B 17/07292",
    "A61B 17/105",
    "A61B 17/1114",
    "A61B 17/115",
    "A61B 17/1155",
    "A61B 17/135",
    "A61B 2017/00004",
    "A61B 2017/00115",
    "A61B 2017/00398",
    "A61B 2017/00473",
    "A61B 2017/00526",
    "A61B 2017/00734",
    "A61B 2017/00818",
    "A61B 2017/00893",
    "A61B 2017/00898",
    "A61B 2017/07228",
    "A61B 2017/07257",
    "A61B 2017/07264",
    "A61B 2017/2905",
    "A61B 2017/2927",
    "A61B 2017/2929",
    "A61B 2017/320052",
    "A61B 2090/031",
    "A61B 2090/037",
    "A61B 90/39",
    "A61F 5/0086",
    "Y10S 227/902"
  ],
  "assignees": [
    "COVIDIEN LP"
  ],
  "filing_date": "2015-11-17",
  "publication_date": "2017-07-11",
  "grant_date": "2017-07-11",
  "priority_date": "2007-03-15",
  "application_number": "US-201514943528-A",
  "family_id": "68654298",
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