Forceps with a rotation assembly

Patent metadata

Field	Value
Publication number	US-9681883-B2
Application number	US-201314075107-A
Country	US
Kind code	B2
Filing date	Nov 8, 2013
Priority date	Nov 9, 2012
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

A forceps comprising: (a) a stylet comprising; (i) a hollow tube having a longitudinal axis; (ii) assemblies, that are extendable through the hollow tube, comprising; (1) support rods; (2) functional attachments at the end of the support rods; (b) a hand piece comprising; (i) housing structures defining a cavity that houses the stylet; (ii) actuating mechanisms, in communication with the stylet, comprising; (1) a bearing fitting located on the stylet; (2) a shuttle in communication with the bearing fitting, and constrained by a plurality of guide ridges 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 and being rotatable relative to the shuttle; and (4) levers in communication with the stylet that causes movement of the hollow tube and the assemblies are relative to each other.

First claim

We 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 rotatable 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 so that the shuttle is movable along the 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 the stylet so that movement of the one or more levers causes movement of the hollow tube or movement of the one or more assemblies;

wherein the movement of the hollow tube and the movement of the one or more assemblies are relative to each other;
wherein a rotation mechanism comprises:

(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
wherein the movement of the one or more levers in communication with the stylet causes the shuttle and the socket to move along the longitudinal axis, the bearing fitting being moved by the shuttle, and the socket and the bearing fitting allowing portions of the stylet to be movable along the longitudinal axis while also being rotatable around the longitudinal axis, thereby causing the one or more assemblies to be rotatable around the longitudinal axis while also movable along the longitudinal axis, the movement of the one or more assemblies being independent of the hollow tube or in combination with the hollow tube.

2. The forceps of claim 1 , 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 of the 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.

3. The forceps of claim 1 , 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 movement of the shuttle which causes actuation of the one or more assemblies.

4. The forceps of claim 3 , wherein the one or more control blocks include a spool control block in contact with the one or more cam fingers; and
wherein actuation of the one or more levers causes the one or more cam fingers to push the spool control block so that the spool control block moves axially.

5. The forceps of claim 4 , wherein the spool control block includes an outside surface coupled with the rotation wheel to allow for rotation and longitudinal movement of the spool control block along the longitudinal axis.

6. The forceps of claim 5 , wherein the one or more control blocks include an anchor control block inside of and coupled to the spool control block so that rotational movement of the spool control block causes rotational movement of the one or more assemblies and the anchor control block.

7. The forceps of claim 1 , 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;
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.

8. The forceps of claim 1 , 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;
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.

9. The forceps of claim 1 , wherein the one or more assemblies include a gripping assembly and a cutting assembly, the gripping assembly and the cutting assembly having the one or more support rods, a blade attachment and two or more jaw attachments.

10. The forceps of claim 9 , 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.

11. The forceps of claim 1 , wherein the socket of the shuttle having a generally axisymmetric inner surface is in communication with the one or more support rods disposed in the shuttle so that the one or more support rods are rotatable about the longitudinal axis and the socket is configured to allow for low friction between the one or more support rods and the shuttle.

12. The forceps of claim 11 , wherein the one of the one or more support rods is a blade support rod which also extends through the shuttle.

13. The forceps of claim 1 , wherein the plurality of guide ridges are attached to the one or more housing structures and house the shuttle.

14. The forceps of claim 1 , wherein rotation of the rotation wheel thereby rotates the one or more assemblies around the longitudinal axis of the hollow tube and independent of the hollow tube.

15. The forceps of claim 14 , wherein the bearing fitting is axisymmetric and extends toward a proximal end of the hand piece.

16. 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 rotatable and axially moveable and having one of the one or more support rods extending therethrough;
2) a shuttl

Assignees

• Gyrus Acmi Inc

Inventors

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

Classifications

• A61B17/2909 Primary

  Handles · CPC title

• A61B2017/2925

  Pistol grips · CPC title

• Y10T29/49826

  Assembling or joining · CPC title

• A61B2017/2913

  cams or guiding means · CPC title

• A61B2017/292

  connection of actuating rod to handle, e.g. ball end in recess · CPC title