US 10,498,269 B2Granted

Powered surgical stapling device

AssigneeCovidien LP

InventorsMichael A. Zemlok, Richard Lech, Saumya Banerjee

Life of this patent

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Abstract

A surgical stapler includes a handle assembly, an end effector, a firing rod disposed in mechanical cooperation with the end effector, a drive motor coupled to the firing rod, a sensor, and a controller. The end effector includes a first and second jaw member moveable relative to one another. The first jaw member includes a surgical fastener and the second jaw member includes an anvil. The drive motor is configured to advance the firing rod to cause the first and second jaw members to clamp tissue and to eject a surgical fastener. The surgical stapler includes a sensor that is configured measure a clamping force exerted on tissue by the first and second jaw members. The controller control a speed of the drive motor based on the measured clamping force.

Claims20

Dependent claims

A surgical stapler, comprising:

a handle assembly;
an end effector coupled to the handle assembly, the end effector including:
a first jaw member including a surgical fastener;
and
a second jaw member including an anvil portion, at least one of the first jaw member or the second jaw member is moveable relative to one another between an open position and a clamped position;
a firing rod disposed in mechanical cooperation with the end effector;
a drive motor coupled to the firing rod, the drive motor configured to advance the firing rod to cause the first and second jaw members to clamp tissue and to eject the surgical fastener;
a sensor configured to measure a clamping force exerted on tissue by the first and second jaw members;
and
a controller operatively coupled to the drive motor and configured to:
measure a maximum clamp force of the first and second jaw member on tissue;
set a speed of the drive motor based on the measured maximum clamp force;
and
control the speed of the drive motor based on the measured clamping force.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/594,986Filed 15 May 2017 · continuation in part
Priority: 5 Oct 2007
Published: US 2017/0245854 A131 Aug 2017
Granted: 3 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification37 codes

H02P 7/29
Controlling armature supply only: using pulse modulation
A61B 17/07207
For applying a row of staples in a single action, e.g. the staples being applied simultaneously: the staples being applied sequentially
A61B 90/92
Identification means for patients or instruments, e.g. tags: coded with colour
A61B 90/98
Identification means for patients or instruments, e.g. tags: using electromagnetic means, e.g. transponders

Family

Application60/997,854Us provisional application · filed 5 Oct 2007
Application12/189,834Parent of this continuation-in-part · filed 12 Aug 2008
Application13/788,293Parent of this continuation-in-part · filed 7 Mar 2013
Application14/598,586Parent of this continuation-in-part · filed 16 Jan 2015
US 2017/0245854 A1Pre-grant publication · published 31 Aug 2017
US 10,779,818 B2Related patent
US 2009/0090763 A1Published application
US 2013/0214025 A1Published application
US 2015/0122870 A1Published application
US 10,498,269 B2This patent

From the US filing history. Foreign family members aren’t listed.