US 11,517,303 B2Granted

Adaptor for surgical instrument for converting rotary input to linear output

AssigneeCovidien LP

InventorStanislaw Kostrzewski

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Abstract

An adaptor for a powered surgical instrument includes a casing, a cam drum, a first linear driver, and a second linear driver. The cam drum defines and is translatable along a longitudinal axis of the adaptor between a retracted position and an advanced position. The cam drum is being supported for rotation about the longitudinal axis. The cam drum defines first and second radial cam grooves about an outer surface thereof. The first cam groove defines a first profile and the second cam groove defines a second profile. The first linear driver includes a first cam follower disposed in the first cam groove and the second linear driver includes a second cam follower disposed in the second cam groove. The first and second linear drivers are supported for movement between advanced and retracted positions in response to rotation of the cam drum.

Claims20

Dependent claims

An adaptor for a surgical instrument, the adaptor comprising:

an elongated casing having a proximal end portion and a distal end portion;
an articulation shaft having a proximal end portion configured to be operably coupled to an actuator, and a distal end portion;
and
an articulation assembly supported in the distal end portion of the casing and including:
an articulation drum operably coupled to the distal end portion of the articulation shaft and configured to rotate in response to a rotation of the articulation shaft, the articulation drum defining a cam surface;
and
a drive bar having a cam follower engaged with the cam surface and a distal end portion configured to engage a jaw assembly, wherein the articulation drum is configured to effect a translation of the drive bar in response to the rotation of the articulation drum to articulate the jaw assembly relative to the elongated casing between a first orientation, in which a longitudinal axis defined by the jaw assembly is longitudinally aligned with a longitudinal axis of the elongated casing, and at least one second orientation, in which the longitudinal axis of the jaw assembly is non-parallel relative to the longitudinal axis of the elongated casing.

4 more elements

A powered surgical stitching instrument comprising:

a loading unit including a connector, and a jaw assembly coupled to the connector and configured for stitching and severing tissue;
an elongated casing having a proximal end portion, and a distal end portion configured to be releasably secured to the connector;
and
an articulation assembly supported in the distal end portion of the casing and including:
an articulation drum having a proximally-facing cam surface;
an articulation cam received in the articulation drum and configured to rotate with the articulation drum, the articulation cam having a distally-facing cam surface opposing the cam surface of the articulation drum;
and
a drive bar having an extension received between the cam surface of the articulation cam and the cam surface of the articulation drum, wherein at least one of the articulation drum or the articulation cam is configured to effect a translation of the drive bar to articulate the jaw assembly.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/684,662Filed 15 Nov 2019 · continuation
Priority: 16 May 2014
Published: US 2020/0078008 A112 Mar 2020
Granted: 6 Dec 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

A61B 17/0469
For suturing wounds; Holders or packages for needles or suture materials: suturing instruments for use in minimally invasive surgery, e.g.…
A61B 17/072
Surgical staplers , e.g. containing multiple staples or clamps: for applying a row of staples in a single action, e.g. the staples being applied…
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 17/115
For performing anastomosis; Buttons for anastomosis: staplers for performing anastomosis, e.g. in a single operation

Family

Application14/279,928Parent of this continuation · filed 16 May 2014
Application15/640,976Parent of this continuation · filed 3 Jul 2017
US 9,713,466 B2Parent of this continuation · filed 25 Jul 2017
US 10,478,174 B2Parent of this continuation · filed 19 Nov 2019
US 2020/0078008 A1Pre-grant publication · published 12 Mar 2020
US 2015/0327850 A1Published application
US 2017/0296167 A1Published application
US 11,517,303 B2This patent

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