EP3845142A2

Surgical instrument comprising a signal interference resolution system

Abstract

A surgical instrument (1000) including a signal interference detection system.

EP3845142A2, drawing sheet 1
Sheet 1 of 31

Term

14.3 yearsto projected expiry

Projected expiry 29 December 2040, counted from filing; an application has no term until it is granted.

  1. Priority and filed
  2. Published
  3. Today
  4. Projected expiry

17 claims: 3 independent, 14 dependent

  1. 1
    A surgical instrument assembly, comprising:a shaft;an end effector attached to said shaft;and a sensing system positioned within said shaft, wherein said sensing system is configured to: detect a parameter of said surgical instrument assembly;and detect a presence of outside interference that affects the parameter detection of said surgical instrument assembly.
  2. 2
    The surgical instrument assembly of Claim 1, wherein said sensing system comprises a plurality of Hall effect sensors and a magnet configured to be sensed by said plurality of Hall effect sensors, and wherein said plurality of Hall effect sensors comprises a range of expected output values corresponding to said parameter.
  3. 3
    The surgical instrument assembly of Claim 1, wherein said sensing system comprises a plurality of Hall effect sensors and a plurality of magnets configured to be sensed by said plurality of Hall effect sensors, and wherein said plurality of Hall effect sensors comprises a range of expected output values corresponding to said parameter.
  4. 4
    A surgical instrument system, comprising:a surgical instrument assembly, comprising: a shaft;an end effector attached to said shaft;and a sensing system positioned within said shaft, wherein said sensing system is configured to: detect a parameter of said surgical instrument assembly;and detect a presence of outside interference that affects the parameter detection of said surgical instrument assembly;and a control circuit configured to: receive a signal from said sensing system;determine if said received signal has been altered by outside interference;adjust said control program if said signal has been determined to have been altered by outside interference.
  5. 5
    A surgical instrument system, comprising:a surgical instrument control interface comprising an interface field detection sensor;a first surgical instrument assembly configured to be attached to said surgical instrument control interface, wherein said first surgical instrument assembly comprises a first wireless communication module and a first field detection sensor;a second surgical instrument assembly configured to be attached to said surgical instrument control interface, wherein said second surgical instrument assembly comprises a second wireless communication module and a second field detection sensor;and a controller configured to: receive wireless communication signals from said first wireless communication module containing data from said first field detection sensor and communication signals from said second wireless communication module containing data from said second field detection sensor;and alert a user of the existence of field interference with said surgical instrument system based on said received wireless communication signals.
  6. 6
    The surgical instrument system of Claim 5, wherein said controller is configured to assess whether said field interference is being generated by a source external to said surgical instrument system.
  7. 7
    The surgical instrument system of Claim 5, wherein said controller is configured to assess when said field interference is constant and, when constant, discount the constant field interference while operating said surgical instrument system.
  8. 8
    The surgical instrument system of Claim 5, wherein said controller is configured to assess when said field interference is stationary and, when stationary, discount the stationary field interference while operating said surgical instrument system.
  9. 9
    The surgical instrument system of Claim 5, wherein said controller is configured to assess when said field interference is not constant and stationary and warn the user of the surgical instrument system that one or more systems of the surgical instrument system may not function properly.
  10. 10
    The surgical instrument system of Claim 9, wherein said controller is further configured to place said surgical instrument system in a limp mode by limiting the operation of one or more said systems.
  11. 11
    The surgical instrument system of Claim 9, wherein said controller is further configured to place said surgical instrument system in a limp mode by limiting the speed of one or more said systems.
  12. 12
    The surgical instrument system of Claim 9, wherein said controller is further configured to place said surgical instrument system in a limp mode by limiting the torque of one or more said systems.
  13. 13
    The surgical instrument system of Claim 9, wherein said controller is further configured to place said surgical instrument system in a limp mode by limiting the power of one or more said systems.
  14. 14
    The surgical instrument system of Claim 9, wherein said controller is further configured to place said surgical instrument system in a limp mode by preventing the operation of one or more said systems.
  15. 15
    The surgical instrument system of Claim 9, wherein said controller is further configured to place said surgical instrument system in a limp mode by limiting the direction of one or more said systems.
  16. 16
    The surgical instrument system of Claim 5, wherein said controller is configured to assess whether said field interference is being generated by a source internal to said surgical instrument system.
  17. 17
    The surgical instrument system of Claim 16, wherein said controller is configured to determine the origin of said field interference and reduce said field interference below a threshold.