Title:
脊椎手術での筋損傷を最小限に抑える側方開創器システム
Document Type and Number:
Japanese Patent JP7305775
Kind Code:
B2
Abstract:
A lateral retractor system for forming a pathway to a patient's intervertebral disc space includes a single dilator and a retractable dual-tapered-blade assembly. The dilator may feature a narrow rectangular body for insertion at an insertion orientation parallel to the fibers of the patient's psoas muscle, at an approximate 45-degree angle to the patient's spine. The retractable dual-tapered-blade assembly consists of only two blade subassemblies, each having a blade bordered by adjustable wings, along with built-in lighting and video capabilities. The dual-tapered-blade assembly may be passed over the single dilator at the insertion orientation and rotated approximately 45-50 degrees to a final rotated orientation parallel to the intervertebral disc space before the two blade subassemblies are retracted away from one another to create the surgical pathway, while simultaneously and continuously assessing for encroachment upon one or more nerve structures within 360-degrees of the instrument. Other embodiments are also disclosed.
Inventors:
RUSTAMZADEH,Edward
Application Number:
JP2021547317A
Publication Date:
July 10, 2023
Filing Date:
January 21, 2020
Export Citation:
Assignee:
RUSTAMZADEH,Edward
International Classes:
A61B17/02
Domestic Patent References:
| JP2013537467A | ||||
| JP2018508306A |
Foreign References:
| US20090259108 |
Attorney, Agent or Firm:
Tatsuya Saitoh
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