Optical trial device

• US 9,693,882 B2
• Filed: 06/03/2014
• Issued: 07/04/2017
• Est. Priority Date: 06/03/2014
• Status: Active Grant

• Current Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Inventors: Hawkins, John Riley, Lomeli, Roman, O'Neil, Michael J., Shin, Kevin Yong, Hall, Mark
• Primary Examiner(s): Yang, Andrew
• Application Number:
  US14/295,208
• Publication Number:
  US 20150342757A1
• Time in Patent Office: 1,127 Days
• CPC Class Codes: A61B 1/00096 Optical elements
• CPC Class Codes: A61B 1/00105 characterised by modular construction
• CPC Class Codes: A61B 1/05 characterised by the image sensor, e.g. camera, being in the distal end portion
• CPC Class Codes: A61B 1/0669 at proximal end of an endoscope
• CPC Class Codes: A61B 1/0676 at distal tip of an endoscope
• CPC Class Codes: A61B 1/0684 using light emitting diodes [LED]
• CPC Class Codes: A61B 1/07 using light-conductive means, e.g. optical fibres
• CPC Class Codes: A61B 1/317 for bones or joints, e.g. osteoscopes, arthroscopes
• CPC Class Codes: A61B 2090/3614 using optical fibre
• CPC Class Codes: A61B 90/06 Measuring instruments not otherwise provided for
• CPC Class Codes: A61B 90/10 for stereotaxic surgery, e.g. frame-based stereotaxis
• CPC Class Codes: A61B 90/14 Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
• CPC Class Codes: A61B 90/361 Image-producing devices, e.g. surgical cameras
• CPC Class Codes: A61F 2/46 Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
• CPC Class Codes: A61F 2/4603 for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2/4657 Measuring instruments used for implanting artificial joints for surgical instruments A61B90/06
• CPC Class Codes: A61F 2/4684 Trial or dummy prostheses
• CPC Class Codes: A61F 2002/30261 parallelepipedal
• CPC Class Codes: A61F 2002/30593 hollow
• CPC Class Codes: A61F 2002/4658 : for measuring dimensions, e.g. length

Abstract

An optical trial implant device that can be used to determine an appropriate size for an intervertebral disc implant can be configured so that one or more portions of the device can be optically transparent or radiolucent. The device can include an imaging device that can be used to view and image the intervertebral space through the optically transparent portion(s) of the device. The device can be used to determine the extent and quality of preparation of an intervertebral space between adjacent vertebral bodies for a surgical procedure, such as a disc replacement or spinal fusion procedure. The acquired image information can be transmitted to a mobile computing device for display in real time and/or stored for future use. The information may also be used to determine parameters indicating the quality of endplate surface preparation.

Claims

1. An intervertebral trial device, comprising:

a trial implant body configured to be placed between adjacent vertebral bodies, the trial implant body having;

an upper trial vertebral end plate surface configured to engage a first vertebral endplate,

a lower trial vertebral endplate surface configured to engage a second vertebral endplate,

a perimeter wall connecting the upper and lower trial vertebral end plate surfaces, the perimeter wall having a distal portion, a proximal portion, and opposed lateral portions,

at least one of the upper trial vertebral end plate surface, the lower trial vertebral end plate surface, and the perimeter wall having at least a portion thereof that is optically transparent or translucent;

an elongated handle extending from a portion of the perimeter wall; and

at least one imaging device;

wherein the elongated handle includes at least one optical fiber coupled with the at least one imaging device, the at least one optical fiber being configured to transmit light from the optically transparent or translucent portion to the at least one imaging device.

2. The intervertebral trial device of claim 1, wherein the trial implant body comprises an optically transparent polymer or crystal.

3. The intervertebral trial device of claim 1, wherein the portion that is optically transparent comprises an opening formed in at least one of the upper trial vertebral end plate surface and the lower trial vertebral end plate surface.

4. The intervertebral trial device of claim 1, wherein the trial implant body is removably and replaceably attached to the elongate handle.

5. The intervertebral trial device of claim 1, wherein a proximal end of the elongated handle is configured to be coupled with an attachment component configured to seat a computing device.

6. The intervertebral trial device of claim 1, wherein the portion that is optically transparent comprises at least one lens or prism.

7. The intervertebral trial device of claim 6, wherein the at least one lens or prism is removably disposed at least partially within the body.

8. The intervertebral trial device of claim 1, wherein the portion that is optically transparent comprises at least one opening formed in the perimeter wall.

9. The intervertebral trial device of claim 8, wherein the at least one opening is formed in the distal portion of the perimeter wall.

10. The intervertebral trial device of claim 1, wherein the portion that is optically transparent has at least one optical component for acquiring images of at least one of an intervertebral space between the adjacent vertebral bodies and at least one of the first and second vertebral endplates.

11. The intervertebral trial device of claim 1, wherein the trial implant body is expandable.

12. A method of verifying preparation of adjacent vertebral bodies for receiving an implant, comprising:

preparing an endplate surface of at least one of the adjacent vertebral bodies for a surgical procedure;

positioning an optical trial device into an intervertebral space between the adjacent vertebral bodies; and

verifying preparation of the endplate surface for receipt of an implant or a spinal fusion procedure by viewing portions of the intervertebral space and the endplate surface through the optical trial device positioned into the intervertebral space,

wherein the optical trial device comprises a trial implant body that is formed entirely of an optically transparent polymer or crystal.

13. The method of claim 12, wherein verifying preparation of the endplate surface comprises acquiring at least one image of at least one of an intervertebral space between the adjacent vertebral bodies and the endplate surface.

14. A method of verifying preparation of adjacent vertebral bodies for receiving an implant, comprising:

preparing an endplate surface of at least one of the adjacent vertebral bodies for a surgical procedure;

positioning an optical trial device into an intervertebral space between the adjacent vertebral bodies; and

verifying preparation of the endplate surface for receipt of an implant or a spinal fusion procedure by viewing portions of the intervertebral space and the endplate surface through the optical trial device positioned into the intervertebral space,

wherein the optical trial device comprises an expandable trial device, and the method further comprises inflating the expandable trial device when the expandable trial device is positioned in the intervertebral space.

15. An intervertebral trial kit, comprising:

a plurality of optical trial devices, each configured to be placed in a prepared disc space between adjacent vertebral bodies and having;

an optical trial implant body configured to be placed between adjacent vertebral bodies, the optical trial implant body having;

an upper trial vertebral endplate surface configured to engage a first vertebral endplate,

a lower trial vertebral endplate surface configured to engage a second vertebral endplate, and

a perimeter wall connecting the upper and lower trial vertebral endplate surfaces, the perimeter wall having a distal portion, a proximal portion, and opposed lateral portions, wherein at least one of the upper trial vertebral endplate surface, the lower trial vertebral endplate surface, and the perimeter wall has at least one portion thereof that is optically transparent, and the kit further comprising;

an attachment component configured to seat a computing device that is configured to receive images of at least one of an intervertebral space between the adjacent vertebral bodies and at least one endplate of the adjacent vertebral bodies through the at least one portion that is optically transparent.

16. The intervertebral trial kit of claim 15, further comprising:

an elongated handle configured to be removably attached to a portion of an optical trial device of the plurality of optical trial devices.

17. An intervertebral trial device, comprising:

a trial implant body configured to be placed between adjacent vertebral bodies, the trial implant body having;

an upper trial vertebral endplate surface configured to engage a first vertebral endplate,

a lower trial vertebral endplate surface configured to engage a second vertebral endplate,

a perimeter wall connecting the upper and lower trial vertebral endplate surfaces, the perimeter wall having a distal portion, a proximal portion, and opposed lateral portions,

at least one of the upper trial vertebral endplate surface, the lower trial vertebral endplate surface, and the perimeter wall having at least a portion thereof that is optically transparent or translucent;

an elongated handle extending from a portion of the perimeter wall; and

at least one imaging device,

wherein a proximal end of the elongated handle is configured to be coupled with an attachment component configured to seat a computing device.