Forceps with a rotation assembly

Patent metadata

Field	Value
Publication number	US-10864005-B2
Application number	US-201715468830-A
Country	US
Kind code	B2
Filing date	Mar 24, 2017
Priority date	Nov 9, 2012
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

A surgical device comprising: (a) a stylet comprising: one or more support rods; (b) a hand piece comprising: one or more housing structures defining a cavity; and one or more actuating mechanisms comprising: one or more levers attached to one or more pivot axes in the hand piece and configured to form one or more slidable joints in communication with the one or more support rods; wherein the one or more levers are configured to be assembled by: being placed into the hand piece along the assembly direction before the stylet so the stylet may be placed into the hand piece over the one or more levers; or being placed into the hand piece along the assembly direction after the stylet so the one or more levers is placed into the hand piece over the stylet and in communication with the stylet.

First claim

We claim:

1. A surgical device comprising: a) a stylet having a distal end and a proximal end, the stylet comprising: (i) one or more support rods having a distal end and a proximal end region, the proximal end region extending from the proximal end of the stylet; and (ii) a longitudinal axis extending from the distal end of the stylet to the proximal end of the stylet; b) a hand piece comprising: (i) one or more housing structures defining a cavity that houses the proximal end region of the stylet, the one or more housing structures including one or more internal guide ridges disposed within the cavity; (ii) a shuttle including a travel pin extending from a first side of the shuttle, wherein an opposing second side of the shuttle is secured to one of the one or more housing structures by engagement with one of the one or more guide ridges, thereby stabilizing the shuttle within the cavity against one of the one or more housing structures; and (iii) one or more actuating mechanisms in communication with the proximal end of the stylet, the one or more actuating mechanisms comprising: 1) one or more levers attached to the hand piece at one or more pivot axes, the one or more levers configured to form a slidable joint in communication with the one or more support rods so that movement of the one or more levers actuates the slidable joint; 2) wherein the slidable joint comprises a camming slot in a single arm extending from one of the one or more levers, and wherein the travel pin extending from the first side of the shuttle is received within the camming slot such that the single arm is operable to actuate the slidable joint on a single side of the shuttle, the slidable joint allowing for free rotation of the one or more support rods about the longitudinal axis of the stylet.

2. The surgical device of claim 1 , wherein the one or more levers are configured to form a second slidable joint comprising a single cam finger extending from the one or more levers, the single cam finger being in contact with a control block, the control block being in communication with the one or more support rods, the second slidable joint allowing for free rotation of the one or more support rods about the longitudinal axis of the stylet.

3. The surgical device of claim 2 , wherein the single cam finger actuates the second slidable joint on a single side of the control block.

4. The surgical device of claim 1 , wherein the stylet includes a rotation mechanism which 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) one or more assemblies being in communication with one or more control blocks so that rotating the rotation wheel thereby rotates the stylet around the longitudinal axis of the stylet or rotates the one or more assemblies around the longitudinal axis of the stylet, or both.

5. The surgical device of claim 4 , wherein the stylet extends through a return mechanism, a stopping device, the rotation wheel, and the one or more control blocks; and
wherein the return mechanism is a spring structure and the stopping device allows for the return mechanism to remain stationary at one end while applying force at an opposite end in an opposite direction.

6. The surgical device of claim 1 , wherein the one or more support rods include one or more jaw support rods which are part of a gripping assembly and one or more blade support rods which are part of a cutting assembly;
wherein opposing jaws are attached to the one or more jaw support rods; and
wherein a blade is attached to the one or more blade support rods.

7. A surgical device comprising;
a) a stylet having a distal end and a proximal end, the stylet comprising:
(i) one or more support rods having a distal end and a proximal end region, the proximal end region extending from the proximal end of the stylet;

b) a hand piece comprising:
(i) one or more housing structures defining a cavity that houses the proximal end region of the stylet so that the stylet is assembled by being placed into the hand piece along an assembly direction, the one or more housing structures including one or more internal guide ridges disposed within the cavity;
(ii) a shuttle including a travel pin extending from a first side of the shuttle, wherein an opposing second side of the shuttle is secured to one of the one or more housing structures by engagement with one of the one or more guide ridges, thereby stabilizing the shuttle within the cavity against one of the one or more housing structures; and
(iii) one or more actuating mechanisms in communication with the proximal end of the stylet, the one or more actuating mechanisms comprising:
1) one or more levers attached to the hand piece at one or more pivot axes, the one or more levers configured to form a slidable joint in communication with the one or more support rods so that movement of the one or more levers actuates the slidable joint;
2) wherein the slidable joint comprises a camming slot in a single arm extending from one of the one or more levers, and wherein the travel pin extending from the first side of the shuttle is received within the camming slot such that the single arm is operable to actuate the slidable joint on a single side of the shuttle, the slidable joint allowing for free rotation of the one or more support rods about a longitudinal axis of the stylet;
wherein the one or more levers are configured to be assembled by: being placed into the hand piece along the assembly direction after the stylet so that the one or more levers is placed into the hand piece over the stylet, the one or more levers therefore being in communication with the stylet.

8. The surgical device of claim 7 , wherein the assembly direction is perpendicular to a plane bisecting the hand piece, the plane forming a bottom portion of the one or more housing structures and a top portion of the one or more housing structures, and wherein the bottom portion and the top portion are substantially symmetrical to one another about the plane; and
wherein the longitudinal axis of the stylet is parallel to the plane and wherein the one or more pivot axes are parallel to the assembly direction.

Assignees

• Gyrus Acmi Inc

Inventors

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

Classifications

• A61B17/295 Primary

  combined with cutting implements · CPC title

• Y10T29/49826

  Assembling or joining · CPC title

• A61B2017/2913

  cams or guiding means · CPC title

• A61B17/2909 Primary

  Handles · CPC title

• A61B2017/00526

  Methods of manufacturing · CPC title