Forceps with a rotation assembly

Patent metadata

Field	Value
Publication number	US-2017196580-A1
Application number	US-201715468824-A
Country	US
Kind code	A1
Filing date	Mar 24, 2017
Priority date	Nov 9, 2012
Publication date	Jul 13, 2017
Grant date	—

Abstract

A forceps comprising: (a) a stylet having a hollow tube having a proximal end region and a longitudinal axis; one or more assemblies that are extendable through the hollow tube, the one or more assemblies comprising: one or more support rods and one or more functional attachments; (b) a hand piece comprising: one or more housing structures defining a cavity; one or more actuating mechanisms comprising: a bearing fitting; a shuttle in communication with the bearing fitting constrained by a plurality of guide ridges; a socket housed by the shuttle; and one or more levers in communication with stylet so that movement of the one or more levers causes movement of the hollow tube and movement of the one or more assemblies; and wherein the movement of the hollow tube and the movement of the one or more assemblies are relative to each other.

First claim

1 . A forceps comprising:
a) a stylet having a distal end and a proximal end region, the stylet comprising:
(i) a hollow tube having a proximal end region and a longitudinal axis;
(ii) one or more assemblies that are extendable through the hollow tube, the one or more assemblies comprising;
1) one or more support rods having a distal end and a proximal end region;
2) one or more functional attachments at the distal end of the one or more support rods;

b) a hand piece comprising:
(i) one or more housing structures defining a cavity that houses the proximal end region of the stylet;
(ii) one or more actuating mechanisms in communication with the proximal end region of the stylet, the one or more actuating mechanisms comprising:
1) a bearing fitting located on the proximal end region of the stylet, the bearing fitting being both rotatably and axially moveable and having one of the one or more support rods extending therethrough;
2) a shuttle in communication with the bearing fitting, the shuttle constrained by a plurality of guide ridges attached to the one or more housing structures so that the shuttle is movable along a longitudinal axis and restricted from rotational movement around the longitudinal axis;
3) a socket housed by the shuttle, the socket receiving the bearing fitting so that the bearing fitting is rotatable relative to the shuttle; and
4) one or more levers in communication with stylet so that movement of the one or more levers causes movement of the hollow tube or movement of the one or more assemblies, and
wherein the movement of the hollow tube and the movement of the one or more assemblies are relative to each other.

2 . The forceps of claim 1 , wherein the forceps comprises a rotation mechanism comprising:
(a) a rotation wheel held by the one or more housing structures; (b) one or more control blocks coupled to the rotation wheel; and (c) the one or more assemblies being in communication with the one or more control blocks so that rotating the rotation wheel thereby rotates the stylet around the longitudinal axis of the hollow tube, or rotates the one or more assemblies around the longitudinal axis of the hollow tube, or both.

3 . The forceps of claim 2 , wherein one or more arms extend from the one or more levers, the one or more arms having one or more camming slots, a travel pin extending outward from the shuttle and received by the one or more camming slots, one or more assemblies being in communication with the shuttle, the movement of the one or more levers causing actuation of the one or more assemblies.

4 . The forceps of claim 2 , wherein one or more cam fingers extend from the one or more levers, the one or more cam fingers being in communication with the shuttle so that the movement of the one or more levers causes actuation of the one or more assemblies.

5 . The forceps of claim 2 , wherein one of the one or more assemblies is a cutting assembly, and the one or more support rods is one or more blade support rods; and
wherein the one or more functional attachments is a blade attached to the one or more blade support rods, and the proximal end region of the one or more blade support rods being in communication with the one or more actuating mechanisms.

6 . The forceps of claim 2 , wherein one of the one or more assemblies is a gripping assembly, and the one or more support rods is one or more jaw support rods, or the hollow tube or both; and
wherein the one or more functional attachments is one or more jaws and one or more opposing jaws that are attached to the one or more jaw support rods or the hollow tube or both, and the proximal end region of the one or more jaw support rods is in communication with the one or more actuating mechanisms.

7 . The forceps of claim 2 , wherein the one or more assemblies include a gripping assembly and a cutting assembly, the gripping assembly and cutting assembly having one or more support rods, a blade attachment and two or more jaw attachments.

8 . The forceps of claim 7 , wherein one or more cam fingers are extending from the one or more levers, the one or more cam fingers being in communication with the one or more assemblies, the movement of the one or more cam fingers causing actuation of the one or more assemblies.

9 - 20 . (canceled)

21 . The forceps of claim 6 , wherein the distal end of the one or more jaw support rods extends out of a distal end of the hollow tube opposite the proximal end region of the hollow tube; and
wherein the proximal end region of the one or more jaw support rods extends from the proximal end region of the hollow tube and is secured to at least one of the one or more control blocks.

22 . The forceps of claim 5 , wherein the one or more support rods include one more jaw support rods and the one or more functional attachments includes opposing jaws having a gap formed therebetween;
wherein the proximal end region of the one or more blade support rods extends through the bearing fitting; and wherein the blade is extendable into and retractable from the gap between the opposing jaws and through the hollow tube.

23 . The forceps of claim 2 , wherein the one or more control blocks include one or more spool control blocks and an outside of the one or more spool control blocks is coupled with an inside of the rotation wheel to allow for rotation and longitudinal movement along the longitudinal axis.

24 . The forceps of claim 23 , wherein the one or more control blocks include one or more anchor control blocks located within and coupled to the one or more spool control blocks so that rotation of the one or more spool control blocks causes rotational movement of the one or more anchor control blocks.

25 . The forceps of claim 24 , wherein the one or more anchor control blocks include one or more fins extending from an outside surface which are coupled with one or more grooves on an inside surface of the one or more spool control blocks.

26 . The forceps of claim 24 , wherein the one or more housing structures include one or more web structures which restrain the one or more anchor control blocks to prevent axial movement and allow for axial rotation so that the one or more spool control blocks slide over an outside of the one or more anchor control blocks.

27 . The forceps of claim 24 , wherein the one or more support rods include one or more blade support rods and the one or more functional attachments include a blade attached to the one or more blade support rods; and
wherein the one or more blade support rods extend through the one or more anchor control blocks into the bearing fitting.

28 . The forceps of claim 27 , wherein the one or more blade support rods extend through a bias device and into the bearing fitting and the bias device returns the one or more blade support rods back into a neutral position after the one or more blade support rods have been actuated by at least one of the one or more actuating mechanisms.

29 . The forceps of claim 28 , wherein the bias device is located between the one or more anchor control blocks and the bearing fitting.

30 . The forceps of claim 23 , wherein the hollow tube includes an overmolded portion at the proximal end region which is tapered and is located partially within the one or more spool control blocks and transfers axial movement from one or more control blocks to the hollow tube.

31 . The forceps of claim 1 , wherein the hollow tube extends through a return mechanism and a stopping device;
wherein the return mechanism biases t

Assignees

• Gyrus Acmi Inc Dba Olympus Surgical Technologies America

Inventors

• Windgassen Ryan J
• Nelson Jeffrey
• Lamser Dennis G
• Mensch John R
• Ward Zane R
• Ozell Timothy

Classifications

• A61B2017/2925

  Pistol grips · CPC title

• A61B2018/00607

  Coagulation and cutting with the same instrument · CPC title

• A61B18/1445

  at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod · CPC title

• A61B2017/2913

  cams or guiding means · CPC title

• A61B17/295 Primary

  combined with cutting implements · CPC title