Ethicon, Gmbh

Cilag International Gmbh

Cllag Gmbh International

Raymond E Parfett

Frederick E Shelton, IV

Jason L Harris

Jerome R Morgan

Shane R Adams

Richard L Leimbach

Mark D Overmyer

Gregory J Bakos

John V Hunt

Kevin D Sackett

Douglas E Withers

Tony C Siebel

David C Yates

Brett E Swensgard

Brian D Schings

Taylor W Aronhalt

Kevin Michael Fiebig

Nicholas J Ross

Jason M Rector

Sol A Posada

Curtis A Maples

Kharyl Evenson George Stephens

Sol E Posada

A surgical stapling system includes an anvil, a blade, a motor and gear assembly, a motor power supply, and a motor controller. A method of controlling the motor includes receiving first and second data indicative of operations of the motor under first and second conditions, respectively, and adjusting a motor control signal based on a difference between the first and second data. Another method includes receiving initial manufacture motor and gear assembly data from a manufacture and operational data during an initial use of the system, and adjusting parameters of the control signal based on a difference between the manufacture data and the operational data. Another method includes controlling a pulse-width modulated (PWM) motor control signal, receiving data regarding an interaction between the blade and a tissue clamped by the anvil, and adjusting a frequency of the PWM signal based on the data related to the interaction.

Adjustment of a motor control command signal to adapt to system changes

A surgical system comprising an end effector, a firing driver movable during a firing stroke, a motor to drive the firing driver during the firing stroke, and a control circuit is disclosed. The control circuit is to initiate the firing stroke to drive the firing driver in a first mode, wherein, in the first mode, the motor is to drive the firing driver at a first speed; detect a first motor stall condition in the first mode; transition from the first mode to a second mode based on the detected first motor stall condition, wherein, in the second mode, the motor is to drive the firing driver at a second speed less than the first speed; detect a second motor stall condition in the second mode; and pause driving the firing driver for a period of time based on the detected second motor stall condition.

Method for closed loop control of motor velocity of a surgical stapling and cutting instrument

Display screen or portion thereof with a graphical user interface

Various systems and methods of controlling a surgical instrument are disclosed. The surgical instrument can include one or more sensors that are configured to detect or measure parameters associated with the use of the instrument and a display. A control circuit can be configured to detect whether the instrument is articulating, firing, clamping, and so on according to relationships between the detected parameters. The control circuit can further cause the display to display an image or sequences of images according to the particular operational state of the instrument. The images can provide alerts, instructions on how to use the instrument, or information detected by the one or more sensors, such as the position of the knife during transection.

System and methods for controlling a display of a surgical instrument

A surgical instrument includes an anvil and an elongate channel. The elongate channel includes a plurality of first electrical contacts and a plurality of electrical connectors comprising a plurality of second electrical contacts, wherein the electrical connectors are spring-biased such that a gap is maintained between the first electrical contacts and the second electrical contacts. The surgical instrument further includes a staple cartridge releasably attachable to the elongate channel, wherein the staple cartridge has a cartridge body comprising a plurality of staple cavities, a plurality of staples deployable from the staple cavities into the tissue, and a plurality of third electrical contacts, wherein the attachment of the staple cartridge to the elongate channel moves the electrical connectors causing the second electrical contacts to bridge the gap and become electrically coupled to the first electrical contacts.

Surgical stapling instruments with smart staple cartridges

A method of operating a surgical instrument is disclosed comprising driving a displacement driver a first distance with a motor, measuring a time period required to drive the displacement driver the first distance, presenting an indicia on a display indicative of a velocity mode for the displacement driver, receiving a user input corresponding to the velocity mode, and setting a velocity of the motor based on the user input.

Display screen or portion thereof with animated graphical user interface

Various systems and methods of controlling a surgical instrument are disclosed. In one aspect, the surgical instrument includes an end effector that is pivotable between an unarticulated position and an articulated position, a knife bar movable between an unfired position and a fired position. The surgical instrument is configured to determine a firing state according to whether the knife bar is moving between the unfired position and the fired position, determine an articulation state according to whether the displacement member is moving between the first position and the second position, and then initiate a power shutdown mode according to the firing state and the articulation state.

Systems and methods of initiating a power shutdown mode for a surgical instrument

A motorized surgical instrument is disclosed. The surgical instrument includes a displacement member, a motor coupled to the displacement member, a control circuit coupled to the motor, a position sensor coupled to the control circuit, and a timer circuit coupled to the control circuit. The control circuit is configured to receive, from the position sensor, a position of the displacement member in a current zone defined by a set displacement interval, measure time at a set position of the displacement interval, wherein the measured time is defined as the time taken by the displacement member to traverse the displacement interval, and set a command velocity of the displacement member for a subsequent zone based on the measured time in the current predefined zone.

Closed loop feedback control of motor velocity of a surgical stapling and cutting instrument based on measured time over a specified displacement distance

A control circuit usable with a surgical instrument including a displacement member, a motor configured to translate the displacement member, and a position sensor configured to monitor a position of the displacement member is provided. The control circuit includes logic configured to provide a motor set point velocity to the motor and display a first indicia on a display indicative of the motor set point velocity.

Various systems and methods of controlling the display of a knife position of a surgical cutting instrument according to the position of a displacement member. The surgical instrument includes a displacement member movable between a first position and a second position to drive a cutting member between an unfired position and a fire position, a sensor configured to detect a position of the displacement member and provide a signal indicative thereof and a display. The surgical instrument determines whether the knife is retracting and then only begins decrementing the displayed knife position once the displacement member has retracted from the distal or second position of its firing stroke by a particular distance.

Systems and methods of displaying a knife position during transection for a surgical instrument

A motorized surgical instrument is disclosed. The surgical instrument includes a displacement member. A motor is coupled to the displacement member and a control circuit. A position sensor is coupled to the control circuit and a timer circuit to measure elapsed time. The control circuit is configured to determine a position of the displacement member, determine an error between directed and actual velocity and adjust the directed velocity based on the error in comparison to one or more thresholds. The control circuit also is configured to adjust the rate of change of the directed velocity based on the one or more thresholds. The control circuit also is configured to determine a zone in which the displacement member is located and set the directed velocity based on the zone in which the displacement member is located.

Growing community of inventors

Loveland, OH, United States of America

Raymond E Parfett