Surgical instrument comprising a sensor system

Patent metadata

Field	Value
Publication number	US-9913642-B2
Application number	US-201414226142-A
Country	US
Kind code	B2
Filing date	Mar 26, 2014
Priority date	Mar 26, 2014
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

A surgical instrument can comprise a handle, a shaft assembly, a first sensor configured to detect a condition of the surgical instrument, and a second sensor configured to detect the condition of the surgical instrument. The surgical instrument can further comprise a processor, wherein the first sensor and the second sensor are in signal communication with the processor, wherein the processor receives a first signal from the first sensor, wherein the processor receives a second signal from the second sensor, wherein the processor is configured to utilize the first signal and the second signal to determine the condition, and wherein the processor is configured to communicate instructions to the surgical instrument in view of the condition.

First claim

What is claimed is:

1. A surgical instrument, comprising:
a handle;
a first sensor configured to detect a condition of said surgical instrument;
a second sensor configured to detect said condition; and
a processor, wherein said first sensor and said second sensor are in signal communication with said processor, wherein said processor receives a first signal from said first sensor, wherein said processor receives a second signal from said second sensor, wherein said processor is configured to utilize said first signal and said second signal to determine said condition, wherein said processor is configured to communicate instructions to said surgical instrument in view of said condition, wherein said processor is configured to compare at least one first datum from said first signal to a range of data, wherein said processor is configured to ignore said first signal if said at least one first datum is not within said range of data, wherein said processor is configured to compare at least one second datum from said second signal to said range of data, and wherein said processor is configured to ignore said second signal if said at least one second datum is not within said range of data.

2. A surgical instrument, comprising:
a handle;
a first sensor configured to detect a condition of said surgical instrument;
a second sensor configured to detect said condition; and
a processor, wherein said first sensor and said second sensor are in signal communication with said processor, wherein said processor receives a first signal from said first sensor, wherein said processor receives a second signal from said second sensor, wherein said processor is configured to utilize said first signal and said second signal to determine said condition, wherein said processor is configured to communicate instructions to said surgical instrument in view of said condition, wherein said processor is configured to compare at least one first datum from said first signal and at least one second datum from said second signal, and wherein said processor is configured to determine whether said at least one first datum is different than said at least one second datum.

3. The surgical instrument of claim 2 , wherein said processor is in signal communication with said first sensor and said second sensor, wherein said processor is configured to selectively send a first calibration signal to said first sensor, and wherein said processor is configured to selectively send a second calibration signal to said second sensor.

4. The surgical instrument of claim 2 , further comprising a memory device, wherein a calibration lookup table comprising data is stored on said memory device, wherein said processor is in signal communication with said memory device, wherein said processor is configured to access said calibration lookup table, wherein said processor is configured to calibrate said first sensor using at least one datum from said calibration lookup table, and wherein said processor is configured to calibrate said second sensor using at least one datum from said calibration lookup table.

5. The surgical instrument of claim 2 , wherein said processor is configured to modify a first gain applied to said at least one first datum if said first signal is not within a predefined range, and wherein said processor is configured to modify a second gain applied to said at least one second datum if said second signal is not within a predefined range.

6. The surgical instrument of claim 2 , wherein said processor comprises an algorithm configured to determine said condition from said first signal and said second signal, and wherein said condition is not determinable from only one of said first signal and said second signal.

7. The surgical instrument of claim 2 , wherein said instructions modify the operation of the surgical instrument.

8. The surgical instrument of claim 2 , further comprising a shaft assembly extending from said handle, wherein said first sensor is positioned in said handle, and wherein said second sensor is positioned in said shaft assembly.

9. The surgical instrument of claim 8 , wherein said shaft assembly includes a proximal end and a distal end, wherein said proximal end is engageable with said handle, wherein said condition includes the position of said distal end relative to said proximal end.

10. The surgical instrument of claim 2 , wherein said condition includes the electrical power being utilized by said surgical instrument.

11. The surgical instrument of claim 2 , wherein said second sensor comprises a redundant sensor to said first sensor.

12. The surgical instrument of claim 2 , further comprising a staple cartridge.

13. A surgical instrument, comprising:
a handle;
a first sensor configured to detect a condition of said surgical instrument;
a second sensor configured to detect said condition; and
a processor, wherein said first sensor and said second sensor are in signal communication with said processor, wherein said processor receives a first signal from said first sensor, wherein said processor receives a second signal from said second sensor, wherein said processor is configured to utilize said first signal and said second signal to determine said condition, wherein said processor is configured to communicate instructions to said surgical instrument in view of said condition, wherein said first sensor comprises a first orientation sensor positioned in a first portion of said surgical instrument, wherein said second sensor comprises a second orientation sensor positioned in a second portion of said surgical instrument, and wherein said condition includes the relative movement of said first portion relative to said second portion.

14. A surgical instrument, comprising:
a handle;
a first sensor configured to detect a condition of said surgical instrument;
a second sensor configured to detect said condition; and
a first processor, wherein said first sensor and said second sensor are in signal communication with said first processor, wherein said first processor receives a first signal from said first sensor, wherein said first processor receives a second signal from said second sensor, wherein said first processor is configured to utilize said first signal and said second signal to determine said condition, and wherein said first processor is configured to communicate instructions to said surgical instrument in view of said condition, wherein the surgical instrument further comprises a second processor, wherein said second processor receives said first signal from said first sensor, wherein said second processor receives said second signal from said second sensor, and wherein said second processor is configured to utilize said first signal and said second signal to determine said condition.

15. The surgical instrument of claim 14 , wherein said second processor is in signal communication with said first processor, and wherein said second processor is configured to determine whether the condition determined by said first processor is the same as the condition determined by said second processor.

16. The surgical instrument of claim 15 , wherein said second processor is configured to deactivate said first processor.

17. A surgical instrument assembly, comprising:
a first sensor configured to detect an operating condition of said surgical instrument assembly;
a second sensor configured to detect the same operating condition of said surgical instrument assembly; and
a controller, wherein said first sensor and said second sensor are in signal communication with said controller, wherein said contr

Assignees

• Ethicon Endo Surgery Inc
• Ethicon Llc

Inventors

• Leimbach Richard L
• Adams Shane R
• Overmyer Mark D
• Shelton Iv Frederick E

Classifications

• A61B18/1445

  at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod · CPC title

• A61B17/07207 Primary

  the staples being applied sequentially · CPC title

• A61B17/072 Primary

  for applying a row of staples in a single action, e.g. the staples being applied simultaneously · CPC title

• A61B2017/00876

  magnetic · CPC title

• A61B90/98

  using electromagnetic means, e.g. transponders · CPC title