Granted Patent B2

US 12,733,934 · App. 19/066,997 · Granted Sep 15, 2026

Inventors: Ramiro Cabrera (Cheshire, CT); Anne Nelson (Guilford, CT)

Assignee: Covidien LP

A61B17/1155A61B2017/00367A61B2017/00398A61B2017/0046A61B2017/00473A61B2017/00477

Abstract

Claims (39)

1 . An adapter assembly for operably connecting an end effector to a surgical instrument, comprising:

a base;

a support structure rotatable relative to the base along a longitudinal axis, wherein the support structure includes a plurality of plates and a plurality of tubular supports maintaining the plates in spaced apart relation;

a rotation handle rotatably secured to the base and fixedly secured to a proximal end of the support structure, wherein rotation of the rotation handle causes rotation of a distal portion of the adapter assembly relative to a proximal end of the adapter assembly;

a latch, mounted to an outer surface of the rotation handle, the latch including a pin biased into engagement with a notch formed in the base to selectively lock the rotation handle in a fixed longitudinal position;

a drive coupling assembly disposed within the base and configured for operable connection to the surgical instrument;

a drive transfer assembly disposed within the base and operably connected to the drive coupling assembly; and

first and second pusher assemblies disposed within the support structure and operably connected to the drive transfer assembly.

2 . The adapter assembly of claim 1 , wherein the latch includes a spring biasing the pin distally into the notch.

3 . The adapter assembly of claim 1 , wherein the base defines a second notch diametrically opposed to the notch to lock the rotation handle in a 180 degree rotated position.

4 . An adapter assembly for operably connecting an end effector to a surgical instrument, comprising:

a base;

a support structure rotatable relative to the base along a longitudinal axis, the support structure including:

a plurality of plates;

a plurality of tubular supports maintaining the plates in spaced apart relation;

at least one support ring positioned between adjacent plates;

a plurality of ribs positioned between adjacent plates; and

a plurality of rivets securing the plates, tubular supports, support rings, and ribs together;

a drive coupling assembly disposed within the base; and

first and second pusher assemblies disposed within the support structure.

5 . The adapter assembly of claim 4 , wherein the plurality of plates includes first, second, third, fourth, fifth, sixth, and seventh plates.

6 . The adapter assembly of claim 5 , wherein the first and second plates are maintained in spaced apart relation by the plurality of tubular supports.

7 . The adapter assembly of claim 5 , wherein the support structure further includes a first support ring positioned between the second and third plates.

8 . The adapter assembly of claim 7 , wherein the support structure includes a second support ring positioned between the fifth and sixth plates.

9 . The adapter assembly of claim 5 , wherein the plurality of ribs includes a first plurality of ribs positioned between the third and fourth plates.

10 . The adapter assembly of claim 4 , further comprising an outer sleeve retaining the support structure.

11 . The adapter assembly of claim 4 , further comprising a drive transfer assembly, operably connected to the drive coupling assembly, wherein the drive transfer assembly includes a first rotatable distal drive shaft operably connected to the first pusher assembly.

12 . An adapter assembly for operably connecting an end effector to a surgical instrument, comprising:

a proximal portion;

a distal portion rotatable relative to the proximal portion along a longitudinal axis;

an outer sleeve;

a support structure secured within the outer sleeve and rotatable with the distal portion relative to the proximal portion, the support structure including a plurality of proximal tabs and a distal tabs extending radially and at least partially through the outer sleeve; and

first and second pusher assemblies disposed within the support structure and configured to convert rotational input from a drive transfer assembly into longitudinal movement, wherein the first and second pusher assemblies are rotatable relative to the surgical instrument.

13 . The adapter assembly of claim 12 , wherein the proximal tabs and distal tabs engage the outer sleeve.

14 . The adapter assembly of claim 12 , further comprising annular plates positioned to maintain the proximal and distal tabs in engagement with the outer sleeve.

15 . The adapter assembly of claim 12 , wherein the support structure is formed within a single outer sleeve.

16 . The adapter assembly of claim 12 , wherein the support structure includes a rotation handle rotatably secured to the proximal portion, wherein rotation of the rotation handle causes rotation of the distal portion.

17 . The adapter assembly of claim 12 , wherein the first and second pusher assemblies are operably connected to the drive transfer assembly disposed within the proximal portion.

18 . The adapter assembly of claim 12 , wherein the outer sleeve is a single tube comprising the support structure and the first and second pusher assemblies.

Assignments (2)

Continuity (5)

References Cited (400)