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PROXIMAL ARTICULATION ROD WITH A LOCK RELEASE FINGER

IP.com Disclosure Number: IPCOM000248970D
Publication Date: 2017-Jan-24
Document File: 2 page(s) / 167K

Publishing Venue

The IP.com Prior Art Database

Abstract

During laparoscopic surgery, there are often times that the end‐effector of the shaft assembly needs to be articulated left or right to a desirable angle for the procedure. During the articulation process a chatter (jumpy action) of the endeffector can be experienced. This is caused by the locking laminates that are used to keep the end‐effector in its respective articulation angle tends to intermittently grab the rail pin that they are assembled to during translation. This movement needs to be more fluid and smooth. One reason for this condition is because the locking laminates are being disengaged a certain distance from the centerline of the mating rail pin. Although the current design unlocks the laminates, it is also causing the laminates to pivot in an undesirable direction. Therefore, causing unintended grabbing of the rail pin. The laminates need to be actuated as close as possible to the centerline of the rail pin in order to avoid the "rocking" (pivoting in an undesired direction).

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PROXIMAL ARTICULATION ROD WITH A LOCK RELEASE FINGER 

 

SUMMARY 

During laparoscopic surgery, there are often times that the end‐effector of the shaft assembly needs to be articulated  left or right to a desirable angle for the procedure. During the articulation process a chatter (jumpy action) of the end‐ effector can be experienced. This is caused by the locking laminates that are used to keep the end‐effector in its  respective articulation angle tends to intermittently grab the rail pin that they are assembled to during translation. This  movement needs to be more fluid and smooth. One reason for this condition is because the locking laminates are being  disengaged a certain distance from the centerline of the mating rail pin. Although the current design unlocks the  laminates, it is also causing the laminates to pivot in an undesirable direction. Therefore, causing unintended grabbing of  the rail pin. The laminates need to be actuated as close as possible to the centerline of the rail pin in order to avoid the  “rocking” (pivoting in an undesired direction). 

 

DESCRIPTION 

A proximal articulation rod is proposed that will incorporate a feature that will actuate the locking laminates more along  the center axis of the rail pin and main body of the laminates. This added feature can be machined, a mim part, dimpled  or other means of being incorporated. 

 

                                                 

 

                           

 

 

 

 

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