US 11,627,998 B2Granted

Head position and driver combination instrument

AssigneeWarsaw Orthopedic, Inc.

InventorsWilliam A. Rezach, Brian A. Butler

Life of this patent

Estimating the term…

Loading patent…

Abstract

Systems, instruments, and methods for performing a medical procedure. The methods comprise: obtaining a surgical instrument that combines a head positioner and a driver into a single integrated part (the driver being at least partially inserted through an elongate aperture formed in the head positioner so as to extend from a proximal end of the head positioner to a distal end of the head positioner); using an actuable structure of the head positioner to limit an amount that the driver can linearly travel in a first direction within the elongate aperture formed in the head positioner; causing a screw to threadingly engage an object via rotation of the driver in at least a first direction around a central axis of the surgical instrument; and changing an orientation of a receiver via rotation of the head positioner about a portion of the driver.

Claims17

Dependent claims

A method for performing a medical procedure, comprising:

obtaining a surgical instrument that combines a head positioner and a driver into a single integrated tool, the driver being at least partially inserted through an elongate aperture formed in the head positioner so as to extend from a proximal end of the head positioner to a distal end of the head positioner;
actuating an actuable structure of the head positioner;
sliding the driver within the elongate aperture formed in the head positioner in a first direction towards a distal end of the surgical instrument until a flange extending out and away from a shank portion of the driver travels through the actuable structure;
releasing the actuable structure of the head positioner to capture the flange in a closed space provided between an internal inward projecting sidewall of the head positioner and the actuable structure;
allowing the flange to slide within the closed space and engage the internal inward projecting sidewall;
using the flange and the internal inward projecting sidewall of the head positioner to limit an amount that the driver can linearly travel in the first direction within the elongate aperture formed in the head positioner;
using the flange and the actuable structure of the head positioner to limit an amount that the driver can linearly travel in a second direction within the elongate aperture formed in the head positioner;
causing a screw to threadingly engage an object via rotation of the driver around a central axis of the surgical instrument;
and
changing an orientation of a receiver via rotation of the head positioner about a portion of the driver.

7 more elements

A surgical instrument, comprising:

a single integrated tool comprising both a head positioner and a driver, the driver being at least partially inserted through an elongate aperture formed in the head positioner so as to extend from a proximal end of the head positioner to a distal end of the head positioner;
and
an actuable structure coupled to the head positioner;
wherein the driver is configured to transfer torque to a screw, the driver comprising a shank that is linearly and rotationally movable within the elongate aperture of the head positioner, and that has a distal end with a head sized and shaped to fit in a socket of the screw;
wherein, when the actuable structure is actuated, the driver can be slide within the elongate aperture formed in the head positioner in a first direction towards a distal end of the surgical instrument until a flange extending out and away from the shank of the driver travels through the actuable structure;
wherein, when the actuable structure is released, the flange is captured in a closed space formed in the elongate aperture between the internal inward projecting sidewall of the head positioner and the actuable structure;
and
wherein the flange is movable within the closed space and engageable with the internal inward projecting sidewall, an amount by which the flange can linearly travel in a first direction within the closed space is limited by the internal inward projecting sidewall of the head position, and an amount by which the flange can linearly travel in the second direction within the closed space is limited by the actuable structure.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/118,694Filed 11 Dec 2020
Published: US 2022/0183725 A116 Jun 2022
Granted: 18 Apr 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

A61B 17/7082
For driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation: for driving, i.e. rotating, screws or…
A61B 90/03
Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00,…
A61B 2017/00455
With special provisions for gripping: orientation indicators, e.g. recess on the handle
A61B 2090/035
Abutting on parts of the device itself: preventing further rotation