US 2026/0144533 A1 · Systems and Methods for Percutaneous Spinal Interbody Fusion (PSIF)

Abstract

The present invention includes a novel procedure and corresponding medical devices for a Purcutaneous Spinal Interbody Fusion (PSIF). In PSIF, the surgeon performs the entire operation percutaneously without the use of a microscope, endoscope, or magnifying loupes. An adjustable retractor system is disclosed that enables the surgeon to percutaneously perform the surgery through accessing the facet joint (and later disc space) that was created by said retractor system. This retractor system provides the surgeon a safe area to work and operate without fear of damaging nerves, blood vessels, or other tissue. An expanding trial may be inserted into and removed from the disc space through the interior of the retractor system to determine the proper size for the expandable cage. The retractor system also enables the expandable cage to be inserted into the disc space.

Claims20

Dependent claims

A medical device for use with a patient comprising:

at least one first retractor that is configured to be connected to a pedicle screw structure;
and
at least one second retractor that is configured such that at least a portion of said second retractor may be inserted into an interior of said first retractor and is configured to provide access to a disc space of the patient through an interior of said second retractor;
wherein said second retractor is configured to be adjustable within said first retractor to displace tissue of the patient in or adjacent to the disc space.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

18/961,611Filed 27 Nov 2024

Priority

28 Jun 2019

Published

28 May 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification30 codes

A61F 2/4611
For insertion or extraction of endoprosthetic joints or of accessories thereof: of spinal prostheses
A61B 17/0206
For holding wounds open, e.g. retractors; Tractors: with antagonistic arms as supports for retractor elements
A61B 17/1757
Specially adapted for particular parts of the body: for the spine
A61B 17/686
Internal fixation devices , including fasteners and spinal fixators, even if a part thereof projects from the skin: plugs, i.e. elements forming…

Family

Application16/455,894Continuation · filed 28 Jun 2019

Application17/583,281Continuation · filed 25 Jan 2022

Application18/961,611Continuation

US 11,259,940 B2Related patent

US 12,178,720 B2Related patent

US 2020/0405501 A1Published application

US 2022/0142633 A1Published application

US 2026/0144533 A1This patent

From the US filing history. Foreign family members aren’t listed.

Systems and Methods for Percutaneous Spinal Interbody Fusion (PSIF)

Life of this patent

Systems and Methods for Percutaneous Spinal Interbody Fusion (PSIF)

Life of this patent

Abstract

Claims20