Spinal implant system and method

Patent metadata

Field	Value
Publication number	US-2019029736-A1
Application number	US-201715661962-A
Country	US
Kind code	A1
Filing date	Jul 27, 2017
Priority date	Jul 27, 2017
Publication date	Jan 31, 2019
Grant date	—

Abstract

A surgical instrument comprises a first member including a drive engageable with a first mating surface of a bone fastener. A second member is rotatable relative to the first member and includes an element engageable with a second mating surface of the bone fastener. An actuator is connected with the second member and includes visual indicia of engagement of the element with the second mating surface. Systems, spinal implants and methods are disclosed.

First claim

What is claimed is:

1 . A surgical instrument comprising:
a first member including a drive engageable with a first mating surface of a bone fastener; a second member being rotatable relative to the first member and including an element engageable with a second mating surface of the bone fastener; and an actuator connected with the second member and including visual indicia of engagement of the element with the second mating surface.

2 . A surgical instrument as recited in claim 1 , wherein the actuator is axially translatable relative to the first member to provide visual indicia of a non-locking configuration.

3 . A surgical instrument as recited in claim 1 , wherein the actuator is axially translatable relative to the first member to provide visual indicia of a locking configuration.

4 . A surgical instrument as recited in claim 1 , wherein the visual indicia includes a gap disposed between the actuator and the first member.

5 . A surgical instrument as recited in claim 1 , wherein the visual indicia includes the actuator disposed in a proximal position relative to the first member to provide visual indicia of a non-locking configuration.

6 . A surgical instrument as recited in claim 1 , wherein the visual indicia includes the actuator disposed in a distal position relative to the first member to provide visual indicia of a locking configuration.

7 . A surgical instrument as recited in claim 1 , wherein the actuator and the element are fixed with the second member in rotation and axial translation.

8 . A surgical instrument as recited in claim 1 , wherein the visual indicia includes position of the actuator relative to the first member.

9 . A surgical instrument as recited in claim 1 , wherein the first member defines a range of axial translation of the actuator relative to the first member.

10 . A surgical instrument as recited in claim 1 , wherein the first member defines a range of axial translation of the actuator between a proximal position relative to the first member to provide visual indicia of a non-locking configuration and a distal position relative to the first member to provide visual indicia of a locking configuration.

11 . A surgical instrument as recited in claim 1 , wherein the drive comprises a distal tip of the first member and the first mating surface includes a drive socket of a bone fastener shaft.

12 . A surgical instrument as recited in claim 1 , wherein the first member includes an outer sleeve that defines an inner cavity configured for disposal of an inner shaft of the second member.

13 . A surgical instrument as recited in claim 12 , wherein the actuator is rotatable and includes a knurled wheel having an inner surface engageable with the inner shaft for rotation therewith.

14 . A surgical instrument as recited in claim 1 , wherein the element includes a screw having an outer thread surface connectable with the second mating surface.

15 . A surgical instrument comprising:
an outer tubular sleeve extending between a proximal end and a distal end including a drive engageable with a drive socket of a bone fastener shaft; an inner shaft being rotatable relative to the sleeve and including a screw connectable with an inner threaded surface of a bone fastener receiver; and a rotatable actuator connected with the inner shaft and including visual indicia of a non-locking configuration and a locking configuration with the inner threaded surface.

16 . A spinal implant system comprising:
a surgical instrument including an outer tubular sleeve extending between a proximal end and a distal end including a drive engageable with a bone fastener shaft, and an inner shaft being rotatable relative to the sleeve and including a screw connectable with a threaded surface of a bone fastener receiver, the surgical instrument further including a rotatable actuator connected with the inner shaft and including visual indicia of a non-locking configuration and a locking configuration with the threaded surface; and a guide member including an inner surface that defines a cavity configured for disposal of the outer sleeve and an image guide being oriented relative to a sensor to communicate a signal representative of a position of the guide member.

17 . A spinal implant system as recited in claim 16 , wherein the guide member includes an end effector of a robotic arm.

18 . A spinal implant system as recited in claim 16 , further comprising a tracking device including a sensor that receives the signal and communicates with a processor to generate data for display of an image from a monitor, the image representing position of the guide member relative to tissue.

19 . A spinal implant system as recited in claim 16 , wherein the drive is integrally connected with the sleeve.

20 . A spinal implant system as recited in claim 16 , wherein the sleeve defines a range of axial translation of the actuator between a proximal position relative to the sleeve to provide visual indicia of a non-locking configuration and a distal position relative to the sleeve to provide visual indicia of a locking configuration.

Assignees

• Warsaw Orthopedic Inc

Inventors

• Wall Daniel Paxton
• Glaser Adam

Classifications

• A61B34/20

  Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis · CPC title

• A61B90/39

  Markers, e.g. radio-opaque or breast lesions markers · CPC title

• A61B17/7082 Primary

  for driving, i.e. rotating, screws or screw parts specially adapted for spinal fixation, e.g. for driving polyaxial or tulip-headed screws · CPC title

• A61B17/8886

  holding the screw head · CPC title

• A61B17/86

  Pins or screws {or threaded wires; nuts therefor (A61B17/72 take precedence)} · CPC title