Screwdriver, kit and associated method

• US 20070010821A1
• Filed: 06/29/2005
• Published: 01/11/2007
• Est. Priority Date: 06/29/2005
• Status: Abandoned Application

• Current Assignee: Depuy Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Products Incorporated (Johnson & Johnson)
• Inventors: Wilkinson, Trent, Tucker, Michael, Metzinger, Anthony
• Application Number:
  US11/170,540
• Publication Number:
  US 20070010821A1
• Time in Patent Office: Days
• US Class Current: 606/86.A
• CPC Class Codes: A61B 17/1631 Special drive shafts, e.g. flexible shafts A61B17/1642, A61B17/164 take precedence
• CPC Class Codes: A61B 17/8888 at its central region
• CPC Class Codes: B25B 23/106 the driving bit being a blade
• CPC Class Codes: B25B 23/108 the driving bit being a Philips type bit, an Allen type bit or a socket

Abstract

A screwdriver for use in orthopaedics to install a screw into bone with a power tool is provided. The screwdriver includes an expandable connector cooperable with the screw for holding the screw to the expandable connector. The screwdriver also includes a drive connector for connecting the screwdriver to the power tool and an actuator. The actuator is operably connected to the expandable connector for actuating the expandable connector. The actuator is at least partially connected to the drive connector while the actuator actuates the expandable connector.

Claims

1. A screwdriver for use in orthopaedics to install a screw into bone with a power tool, said screwdriver comprising:

an expandable connector cooperable with the screw for holding the screw to said expandable connector;

a drive connector for connecting said screwdriver to the power tool; and

an actuator operably connected to said expandable connector for actuating said expandable connector, said actuator at least partially connected to said drive connector while said actuator actuates said expandable connector.

2. The screwdriver of claim 1, wherein said expandable connector comprises:

a flexible member for contact with the screw; and

an actuator positioned at least partially in intimate contact with said flexible member for flexing said member into one of engagement or disengagement with the screw.

3. The screwdriver of claim 1, wherein said expandable connector comprises a resilient material having at least one slit therein.

4. The screwdriver of claim 1, wherein said expandable connector comprises a collet.

5. The screwdriver of claim 1, wherein said expandable connector comprises:

a hollow tube defining a portion thereof having a slit there through and defining a surface for cooperation with the screw; and

a pin for sliding cooperation at least partially with the hollow tube, said pin cooperating with said tube to expand said tube to secure said tube to the screw.

6. The screwdriver of claim 5, wherein said hollow tube comprises:

a first component cooperable with the screw; and

a second component removably connected to said first component and to said coupler.

7. The screwdriver of claim 6, further comprising a third component cooperable with a second screw having at least one dimension different dimension than said first mentioned screw, said third component operably connected to said second component.

8. The screwdriver of claim 7, wherein said drive connector comprises a stem defining at least one of a flat and a groove for cooperation with the power tool.

12. The kit of claim 1, wherein said resilient member comprises a collet.

9. A kit for use in orthopaedics in installing a screw into bone:

said kit comprising;

a power tool; and

a screwdriver for selective expandable engagement with the screw, said screwdriver including a drive connector for connecting said screwdriver to said power tool, and an actuator operably connected to the drive connector and to the screw for actuating the expandable engagement of said screwdriver to the screw, said actuator at least partially connected to said drive connector while said actuator actuates the expandable connector.

10. The kit of claim 9, further comprising an expandable connector for selective expandable engagement with the screw,

11. The kit of claim 10, wherein said expandable connector comprises:

a resilient member having at least one slit therein for contact with the screw; and

a pin positioned at least partially in intimate contact with the flexible material for flexing the material into one of engagement or disengagement with the screw.

13. The kit of claim 10, wherein said expandable connector comprises:

a hollow tube defining a portion thereof having a slit there through and defining a surface for cooperation with the screw; and

a pin for sliding cooperation at least partially with the hollow tube, said pin cooperating with said tube to expand said tube to secure said tube to the screw.

14. The kit of claim 13, wherein said hollow tube comprises:

a first component cooperable with the screw; and

a second component removably connected to said first component and to said actuator.

15. The kit of claim 14, further comprising a third component cooperable with a second screw having at least one dimension different dimension than said first mentioned screw, said third component operably connected to said second component.

16. A method for performing orthopaedic surgery on a bone, comprising the steps of:

providing a screw for attachment to the bone;

providing a kit for installing the screw into the bone, the kit including a power tool and a screwdriver for engagement with the screw, the screwdriver including a drive connector for connecting the screwdriver to the power tool, and a coupler operably associated with the implant holder and with the tool driver, the coupler having a first relationship with the implant holder and the tool driver in which the implant holder and the tool driver are rotatably connected and a second relationship with the implant holder and the tool driver in which the implant holder and the tool driver are rotatably disconnected;

hand tightening the screw to the screwdriver while the screwdriver is rotatably disconnected from the power tool;

operatively connecting the power tool to the screwdriver; and

securing the screw to the bone using the power tool and the screwdriver.