The exemplary embodiments of present invention relate generally to a handle assembly for a surgical tool and, more specifically, to a handle assembly including a handle having a distal end for releasably receiving a surgical tool and a proximal end for releasably receiving a handle extension.

BACKGROUND OF THE DISCLOSURE

A surgical tool is typically connected to a handle that is used to manipulate the tool. The surgical tool is provided at a distal end of the handle and is commonly permanently or integrally attached to the handle. In other instances, the surgical tool is removably attached to the handle.

In either case, if the surgical tool is an extraction tool, e.g., one used to extract implants from bone or the like, the handle by itself may not be capable of enabling a user, e.g., a surgeon, to exert leverage suitable to extract an implant.

BRIEF SUMMARY OF THE DISCLOSURE

In accordance with an exemplary embodiment there is provided a handle assembly for a surgical tool comprising a handle having a distal end, and a first retaining mechanism attached to the distal end of the handle. The first retaining mechanism includes a first retaining housing having a first central cavity for receiving a surgical tool, and a first locking mechanism moveable between first and second positions relative to the housing, the first locking mechanism including a through hole for receiving the surgical tool.

An aspect of the exemplary embodiment is that the handle assembly further includes a second retaining mechanism attached to a proximal end of the handle. The second retaining mechanism comprises a second retaining housing having a second central cavity for receiving a handle extension, and a second locking mechanism moveable between first and second positions relative to the second retaining housing, the second locking mechanism having a through hole for receiving the handle extension.

Another aspect of the exemplary embodiment is that the first retaining mechanism further includes an alignment tab about a lateral side of the first locking mechanism that limits movement of the first locking mechanism. According to an aspect, the alignment tab directly engages an indentation about a lateral side of the first locking mechanism.

Another aspect of the exemplary embodiment is that the first retaining housing includes a bore adjacent the first central cavity to receive an alignment tab of the first retaining mechanism. Another aspect of the exemplary embodiment is that the first retaining mechanism includes a first biasing member that biases the first locking mechanism towards the first position. According to an aspect, the first biasing member directly engages the first locking mechanism.

Another aspect of the exemplary embodiment is that the first locking mechanism includes a lip that partially occludes the first central cavity when in the first position. Another aspect of the exemplary embodiment is that the through hole of the first locking mechanism is larger than the first central cavity.

Another aspect of the exemplary embodiment is that the second retaining mechanism further includes an alignment tab about a lateral side of the second locking mechanism that limits movement of the second locking mechanism. According to an aspect, the alignment tab directly engages an indentation about a lateral side of the second locking mechanism. Another aspect of the exemplary embodiment is that the second retaining housing includes a bore adjacent the second central cavity to receive an alignment tab of the second retaining mechanism.

Another aspect of the exemplary embodiment is that the second locking mechanism includes a lip that partially occludes the second central cavity from receiving the handle extension. Another aspect of the exemplary embodiment is that the second retaining mechanism includes a second biasing member that biases the second locking mechanism towards the first position. According to an aspect, the second biasing member directly engages the second locking mechanism.

Another aspect of the exemplary embodiment is that the second retaining housing includes a plurality of fillets about its perimeter. According to an aspect, the plurality of fillets circumscribes the second central cavity.

In accordance with the exemplary embodiments, there is provided a handle assembly for a surgical tool including a handle having a distal end for releasably receiving a surgical tool and a proximal end for releasably receiving a handle extension. When the handle assembly is used in combination with an implant extraction surgical tool, the disclosure overcomes one more of the disadvantages referenced above by providing a handle that is capable of receiving a handle extension. In an exemplary embodiment, the handle extension can be a T-handle that enables the user to exert considerable extraction force on the surgical tool whereby the surgical tool can effectively extract an implant.

Other features and advantages of the subject disclosure will be apparent from the following more detail description of the exemplary embodiments.

