Multi-stage rotary overtravel stop

Patent metadata

Field	Value
Publication number	US-9945498-B2
Application number	US-201414580401-A
Country	US
Kind code	B2
Filing date	Dec 23, 2014
Priority date	Dec 27, 2013
Publication date	Apr 17, 2018
Grant date	Apr 17, 2018

Abstract

A medical device assembly including a first member having a first abutment, a second member rotatably connected to the first member and having a second abutment, and an idler member having third abutment and a fourth abutment. The first member is rotatably fixed to the second member. The idler member is free to rotate relative to the first member and the second member until the first abutment abuts the third abutment and until the second abutment abuts the fourth abutment. The first member, the second member and the idler member all rotate relative to each other about a single axis.

First claim

What is claimed is:

1. A rotary joint for use in a medical application comprising:
a first linkage having a first abutment;
a second linkage rotatably connected to the first linkage, the second linkage having a second abutment;
at least one idler member having a third abutment at a top side thereof and a fourth abutment at a bottom side thereof; and
at least one conduit extending through the first linkage and the second linkage;
the first linkage having at least one connector being rotatably fixed to the second linkage for allowing the first linkage to rotate relative to the second linkage; and
the at least one idler member being free to rotate relative to the first linkage and the second linkage until the first abutment of the first linkage abuts the third abutment of the at least one idler member and until the second abutment of the second linkage abuts the fourth abutment of the at least one idler member;
wherein the first linkage is able to rotate relative to the second linkage at a maximum angular displacement that is greater than 360°;
wherein the first linkage, the second linkage and the at least one idler member all rotate relative to each other about a single axis; and
wherein the second linkage includes a shelving system.

2. The rotary joint of claim 1 , wherein:
a maximum angular distance of rotation of the first linkage relative to the second linkage is less than 720°, with the first abutment, the second abutment, the third abutment and the fourth abutment preventing the first linkage from rotating the maximum angular displacement of more than 720° relative to the second linkage; and
the maximum angular distance of rotation of the first linkage relative to the second linkage is calculated as follows:
720°−A 1 −A 2 −A 3 −A 4 ,

with A 1 being equal to a first angular width of the first abutment, A 2 being equal to a second angular width of the second abutment, A 3 being equal to a third angular width of the third abutment, and A 4 being equal to a fourth angular width of the fourth abutment.

3. The rotary joint of claim 1 , wherein:
the at least one idler member comprises a flat disc with an open center in a middle thereof, a flat top surface and a flat bottom surface;
the third abutment extends axially from the flat top surface of the flat disc; and
the fourth abutment extends axially from the flat bottom surface of the flat disc.

4. The rotary joint of claim 1 , wherein:
the at least one idler member is disc-shaped.

5. The rotary joint of claim 1 , wherein:
the at least one idler member has an open center.

6. The rotary joint of claim 1 , wherein:
the at least one idler member comprises a plurality of idler members.

7. The rotary joint of claim 1 , wherein:
the at least one conduit comprises electrical cabling.

8. A rotary joint for use in a medical application comprising:
a first linkage having a first abutment;
a second linkage rotatably connected to the first linkage, the second linkage having a second abutment;
at least one idler member having a third abutment at a top side thereof and a fourth abutment at a bottom side thereof; and
at least one conduit extending through the first linkage and the second linkage;
the first linkage having at least one connector being rotatably fixed to the second linkage for allowing the first linkage to rotate relative to the second linkage; and
the at least one idler member being free to rotate relative to the first linkage and the second linkage until the first abutment of the first linkage abuts the third abutment of the at least one idler member and until the second abutment of the second linkage abuts the fourth abutment of the at least one idler member;
wherein the first linkage is able to rotate relative to the second linkage at a maximum angular displacement that is greater than 360°;
wherein the first linkage, the second linkage and the at least one idler member all rotate relative to each other about a single axis;
wherein the at least one idler member comprises a flat disc with an open center in a middle thereof, a top surface and a bottom surface;
wherein the third abutment rests in a top arcuate channel in the top surface of the flat disc and extends axially from the top surface of the flat disc;
wherein the third abutment is configured to slide angularly within the top arcuate channel;
wherein the fourth abutment rests in a bottom arcuate channel in the bottom surface of the flat disc and extends axially from the bottom surface of the flat disc;
wherein the fourth abutment is configured to slide angularly within the bottom arcuate channel;
wherein at least one top damping member abuts a radial face of the third abutment to damp movement of the third abutment within the top arcuate channel; and
wherein at least one bottom damping member abuts a radial face of the fourth abutment to damp movement of the fourth abutment within the bottom arcuate channel.

9. The rotary joint of claim 8 , wherein:
the second linkage is a camera.

10. The rotary joint of claim 8 , wherein:
the second linkage includes a monitor.

11. A rotary joint for use in a medical application comprising:
a first linkage having a first abutment;
a second linkage rotatably connected to the first linkage, the second linkage having a second abutment;
at least one idler member having a third abutment at a top side thereof and a fourth abutment at a bottom side thereof; and
at least one conduit extending through the first linkage and the second linkage;
the first linkage having at least one connector being rotatably fixed to the second linkage for allowing the first linkage to rotate relative to the second linkage; and
the at least one idler member being free to rotate relative to the first linkage and the second linkage until the first abutment of the first linkage abuts the third abutment of the at least one idler member and until the second abutment of the second linkage abuts the fourth abutment of the at least one idler member;
wherein the first linkage is able to rotate relative to the second linkage at a maximum angular displacement that is greater than 360°;
wherein the first linkage, the second linkage and the at least one idler member all rotate relative to each other about a single axis;
wherein the at least one idler member comprises a ring with a cylindrical outer face and a T-shaped member extending radially from the cylindrical outer face; and
wherein the T-shaped member comprising the third abutment on a leg thereof and the fourth abutment on a cross-member thereof.

12. A rotary joint for use in a medical application comprising:
a first linkage having a first abutment;
a second linkage rotatably connected to the first linkage, the second linkage having a second abutment;
at least one idler member having a third abutment at a top side thereof and a fourth abutment at a bottom side thereof; and
at least one conduit extending through the first linkage and the second linkage;
the first linkage having at least one connector being rotatably fixed to the second linkage for allowing the first linkage to rotate relative to the second linkage; and
the at least one idler member being free to rotate relative to the first linkage and the second linkage until the first abutment of the first linkage abuts the third abutment of the at least one idler member and until the second abutment of the second linkage abuts the fourth abutment of the at least one idler member;
wherein the first linkage is able to rotate relative to the second linkage at a maximum angular displacement that is greater than 360°;
wherein the first linkage, the second linkage and the at leas

Assignees

• Timoszyk Wojciech K
• Reavill James Dulin
• Stryker Corp

Inventors

• Timoszyk Wojciech K
• Reavill James Dulin

Classifications

• A61B90/30

  Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure · CPC title

• F16L3/01 Primary

  for supporting or guiding the pipes, cables or protective tubing, between relatively movable points, e.g. movable channels · CPC title

• A61B2090/308

  Lamp handles · CPC title