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Intervertebral prosthetic disc placement and removal systems

A technology of intervertebral discs and prostheses, applied in prosthesis, medical science, spinal implants, etc., can solve problems such as disconnection of instruments

Pending Publication Date: 2021-12-07
SIMPLIFY MEDICAL PTY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Challenges with these known devices and techniques include inadvertently changing the prosthetic disc position during device disconnection or difficulty disconnecting the device from the prosthetic disc due to interference from the surrounding anatomy

Method used

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  • Intervertebral prosthetic disc placement and removal systems
  • Intervertebral prosthetic disc placement and removal systems
  • Intervertebral prosthetic disc placement and removal systems

Examples

Experimental program
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Embodiment Construction

[0034] Proper positioning of a prosthetic disc in the spine is an important part of a successful total disc reconstruction (TDR) procedure. The position of the implant in the intervertebral space affects range of motion, implant behavior, and clinical outcome. Proper positioning in the anterior / posterior direction between the vertebral bodies is particularly important, but can be difficult due to the surrounding anatomy. Surgeon experience, surgeon training, use of imaging modalities, and patient anatomy are all factors that can affect the accuracy of prosthetic disc placement.

[0035] A prosthetic disc placement system according to the present invention includes a multi-component prosthetic disc and associated placement instruments. The placement instrument securely holds the prosthetic disc for placement into the disc space and rapidly releases the prosthetic disc within the disc space at the desired location between the vertebral bodies. Quick release can be facilitated ...

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Abstract

An intervertebral prosthetic disc placement instrument is provided for implantation of an intervertebral prosthetic disc. The placement instrument shaft has a distal end and a proximal end and an instrument handle on the proximal end having an activation mechanism. A pair of grasping jaws on the distal end of the instrument shaft are configured to move with respect to one another to grasp a multipart prosthetic disc in a non-articulating configuration. The grasping jaws are movable from a tightened to a released position by the activation mechanism. A prosthetic disc ejector on the distal end of the instrument shaft moves distally with respect to the pair of grasping jaws when the grasping jaws are in the released position and the ejector is configured to contact the prosthetic disc to fully disengage the prosthetic disc from the placement instrument. An intervertebral prosthetic disc core removal instrument is also provided for use in distracting plates of the intervertebral disc away from one another to allow the core to be more easily removed.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Patent Application No. 62 / 841,359 filed May 1, 2019 (WSGR Docket No. 29850-736.101) and U.S. Patent Application No. 16 / 861,079 filed April 28, 2020 (WSGR Docket No. 29850-736.201), the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to medical devices and methods. More particularly, the present invention relates to prosthetic discs and systems and methods for implanting prosthetic discs. Background technique [0004] Back pain places a huge burden on the health and productivity of people around the world. According to the American Academy of Orthopedic Surgeons, about 80 percent of Americans will experience back pain at some point in their lifetime. On any given day, an estimated 5% of the working population in the United States is unable to work due to back pain. [0005] A common cause of back pain is da...

Claims

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Application Information

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IPC IPC(8): A61F2/46A61F2/44A61B17/70
CPCA61F2/442A61F2/4611A61F2002/4619A61F2002/4622A61F2002/4627A61F2/4637A61F2002/443A61F2002/4625A61F2002/4628A61F2002/4641
Inventor Y·阿拉蒙
Owner SIMPLIFY MEDICAL PTY LTD