Time dependent evaluation of sensor data to determine stability, creep, and viscoelastic elements of measures
AssigneeEthicon, Inc.
InventorsFrederick E. Shelton, IV, Jason L. Harris, Brett E. Swensgard, Richard L. Leimbach, Shane R. Adams, Mark D. Overmyer
Life of this patent
Estimating the term…
Abstract
A powered surgical cutting and stapling instrument is disclosed. The instrument includes at least one sensor to measure at least one parameter associated with the instrument, at least one processor, and a memory operatively associated with the processor. The memory includes machine executable instructions that when executed by the processor cause the processor to monitor the at least one sensor over a predetermined time period and determine a rate of change of the measured parameter.
Claims20
A powered surgical cutting and stapling instrument comprising:
- at least one sensor configured to measure at least one parameter associated with the instrument;
- at least one processor;
- and
- a memory operatively associated with the processor, the memory including machine executable instructions that when executed by the processor cause the processor to:
- monitor the at least one sensor over a predetermined time period;
- determine a rate of change of the measured parameter;
- and
- determine a physiological tissue type according to the rate of change of the measured parameter.
A powered surgical cutting and stapling instrument comprising:
- an end effector comprising a first jaw member and a second jaw member, wherein at least one of the first and second jaw members is movable relative to the other jaw member, and wherein at least one sensor is positioned on at least one of the first and second jaw members;
- a pressure sensor or strain gauge positioned in at least one of the first or second jaw members;
- at least one processor;
- and
- a memory operatively associated with the processor, the memory including machine executable instructions that when executed by the processor cause the processor to:
- monitor a pressure applied to tissue grasped between the first and second jaw members;
- and
- determine a physiological type of the tissue grasped between the first and second jaw members based on the tissue pressure.
A powered surgical cutting and stapling instrument comprising:
- an end effector comprising a first jaw member and a second jaw member, wherein at least one of the first and second jaw members is movable relative to the other jaw member, and wherein at least one sensor is positioned on at least one of the first and second jaw members;
- a pressure sensor or strain gauge positioned in at least one of the first or second jaw members;
- a gap sensor to measure a gap distance between the first and second jaw members;
- at least one processor;
- and
- a memory operatively associated with the processor, the memory including machine executable instructions that when executed by the processor cause the processor to:
- monitor the pressure applied to tissue grasped between the first and second jaw members;
- monitor the gap distance between the first and second jaw members;
- compensate tissue compression measurements according to an amount of the tissue located between the first and second jaw member;
- and
- determine a type of tissue grasped between the first and second jaw members based on the tissue pressure and the gap distance.
Dependencies are inferred from the claim text.