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US 11,751,869 B2Granted
Monitoring of multiple sensors over time to detect moving characteristics of tissue
AssigneeCilag GmbH International
InventorsFrederick E. Shelton, IV, Taylor W. Aronhalt, Jason L. Harris
Life of this patent
Estimating the term…
Abstract
A surgical instrument includes a wireless transmission system for transmitting at least one of power and a data signal through between an end effector and an instrument housing of the surgical instrument. The surgical instrument includes the sensor monitoring and processing circuit.
Claims7
An end effector for a surgical instrument, the end effector comprising:
- a cartridge;
- a movable clamp jaw pivotally coupled to the cartridge;
- the cartridge comprising:
- a plurality of sensors disposed longitudinally and laterally on the cartridge, the plurality of sensors configured to sense a property of tissue clamped between the cartridge and the movable clamp jaw of the end effector;
- a sensors circuit electrically coupled to the plurality of sensors, wherein the sensors circuit comprises:
- a multiplexer coupled to an output of each one of the plurality of sensors;
- and
- a logic circuit coupled to the multiplexer, the logic circuit configured to independently select each of the plurality of sensors;
- a first coil configured to inductively couple electrical power to the cartridge through near field communication, the first coil electrically coupled to the plurality of sensors and the sensors circuit;
- and
- a second coil configured to inductively couple to a sensor monitoring and processing circuit through near field communication, wherein the sensor monitoring and processing circuit is located in a housing of a surgical instrument separate from the end effector and wherein the logic circuit is configured to inductively couple to the sensor monitoring and processing circuit through the second coil;
- wherein the plurality of sensors are arranged and configured to sense movement of tissue relative to each of the plurality of sensors based on a sensed property of the tissue;
- and
- wherein the logic circuit is configured to:
- receive a sensor select instruction from the sensor monitoring and processing circuit through the second coil;
- select one of the plurality of sensors based on the sensor select instruction;
- read the selected sensor;
- and
- provide the reading from the selected sensor to the sensor monitoring and processing circuit.
16 more elements
An end effector for use with a surgical system including a sensor monitoring and processing circuit remote from the end effector, the end effector comprising:
- a first jaw;
- a second jaw movable relative to the first jaw to grasp tissue;
- a cartridge, comprising:
- a plurality of sensors configured to measure a property of the tissue grasped by the end effector indicative of a movement of the tissue;
- and
- a sensors circuit electrically coupled to the plurality of sensors, wherein the sensors circuit comprises:
- a multiplexer coupled to an output of each one of the plurality of sensors;
- and
- a logic circuit coupled to the multiplexer, the logic circuit configured to independently select each of the plurality of sensors;
- a first coil configured to inductively couple electrical power to the cartridge through near field communication, the first coil electrically coupled to the plurality of sensors and the sensors circuit;
- and
- a second coil configured to inductively couple the logic circuit to the sensor monitoring and processing circuit through near field communication;
- and
- wherein the logic circuit is configured to:
- receive a sensor select instruction from the sensor monitoring and processing circuit through the second coil;
- select one of the plurality of sensors based on the sensor select instruction;
- read the selected sensor;
- and
- transmit the reading from the selected sensor to the sensor monitoring and processing circuit.
16 more elements
An end effector for use with a surgical system including a sensor monitoring and processing circuit remote from the end effector, the end effector comprising:
- a first jaw;
- a second jaw movable relative to the first jaw to grasp tissue;
- a cartridge, comprising:
- a plurality of sensors configured to measure a property of the tissue grasped by the end effector indicative of a movement of the tissue;
- and
- a multiplexer coupled to an output of each one of the plurality of sensors;
- and
- a logic circuit coupled to the multiplexer, the logic circuit configured to independently select each of the plurality of sensors;
- a first coil configured to inductively couple electrical power to the cartridge through near field communication, the first coil electrically coupled to the plurality of sensors;
- and
- a second coil configured to inductively couple the logic circuit to the sensor monitoring and processing circuit through near field communication;
- and
- wherein the logic circuit is configured to:
- receive a sensor select instruction from the sensor monitoring and processing circuit through the second coil;
- select one of the plurality of sensors based on the sensor select instruction;
- read the selected sensor;
- and
- transmit the reading from the selected sensor to the sensor monitoring and processing circuit.
15 more elements
Dependencies are inferred from the claim text.