# US 2021/0330477 A1 · Surgical instrument and method

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- Number: US 2021/0330477 A1
- Document ID: US20210330477A1
- Status: Published application
- Kind: A1
- Application number: 16/855,336
- Filed: 2020-04-22
- Published: 2021-10-28
- Earliest claimed: 2020-04-22
- Assignees: Warsaw Orthopedic, Inc.
- Applicants: Warsaw Orthopedic, Inc.
- Inventors: Abel Kim; Jonathan M. Dewey
- Web page: https://patentgrep.com/patent/US20210330477A1

## CPC

- A61F 2/4611: {of spinal prostheses}
- A61B 34/20: Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61F 2/4455: {for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages (intervertebral discs A61F2/442)}
- A61F 2/4465: {having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine}
- A61F 2/447: {substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section}
- A61B 2034/2051: {Electromagnetic tracking systems}
- A61B 2034/2055: {Optical tracking systems}
- A61B 2034/2063: {Acoustic tracking systems, e.g. using ultrasound}
- A61B 2034/2072: {Reference field transducer attached to an instrument or patient}
- A61B 2090/3764: {with a rotating C-arm having a cone beam emitting source}
- A61F 2002/3008: {radio-opaque, e.g. radio-opaque markers}
- A61F 2002/30133: {kidney-shaped or bean-shaped}
- A61F 2002/4632: {using computer-controlled surgery, e.g. robotic surgery}
- A61F 2310/00023: Titanium or titanium-based alloys, e.g. Ti-Ni alloys
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A surgical instrument comprises a member defining a longitudinal axis and being connectable with a spinal implant. A handle is connected with the member. An image guide is connected with the member for orientation relative to a sensor to communicate a signal representative of a position of the spinal implant. The image guide is rotatable about the axis relative to the member and is disposable in at least one fixed position with the member. Systems, implants, spinal constructs and methods are disclosed.

## Claims

### Claim 1

A surgical instrument comprising:
a member defining a longitudinal axis and being connectable with a spinal implant;
a handle connected with the member; and
an image guide connected with the member for orientation relative to a sensor to communicate a signal representative of a position of the spinal implant,
the image guide being rotatable about the axis relative to the member and disposable in at least one fixed position with the member.

### Claim 2 (depends on 1)

A surgical instrument as recited in claim 1, wherein the at least one fixed position of the image guide with the member includes a rigid fixation between the image guide and the member.

### Claim 3 (depends on 1)

A surgical instrument as recited in claim 1, wherein the at least one fixed position includes a plurality of fixed positions of the image guide with the member, the fixed positions being spaced about a circumference of the member.

### Claim 4 (depends on 1)

A surgical instrument as recited in claim 1, wherein the at least one fixed position includes a first fixed position and a second fixed position being diametrically disposed about a circumference of the member.

### Claim 5 (depends on 1)

A surgical instrument as recited in claim 1, further comprising an actuator connected with the member and the image guide, and being configured to dispose the image guide between a fixed position and a non-fixed position with the member.

### Claim 6 (depends on 5)

A surgical instrument as recited in claim 5, wherein the actuator is resiliently biased to the fixed position.

### Claim 7 (depends on 5)

A surgical instrument as recited in claim 5, wherein the actuator includes a spring loaded button biased to the fixed position.

### Claim 8 (depends on 1)

A surgical instrument as recited in claim 1, further comprising an actuator including a transverse pin, and the member including a wall defining a slot configured for disposal of the pin in a configuration to dispose the image guide between a fixed position and a non-fixed position with the member.

### Claim 9 (depends on 8)

A surgical instrument as recited in claim 8, wherein the wall includes a projection disposed in the slot and engageable with the pin in the at least one fixed position.

### Claim 10 (depends on 9)

A surgical instrument as recited in claim 9, wherein the projection includes a tapered cantilever.

### Claim 11 (depends on 9)

A surgical instrument as recited in claim 9, wherein the pin includes at least one angled peg engageable with the projection.

### Claim 12 (depends on 8)

A surgical instrument as recited in claim 8, wherein the wall further includes a first slot and a second slot being diametrically disposed about a circumference of the member.

### Claim 13 (depends on 12)

A surgical instrument as recited in claim 12, wherein the wall further defines a circumferential slot connecting the first slot and the second slot.

### Claim 14 (depends on 8)

A surgical instrument as recited in claim 8, wherein the actuator includes a button having an inner surface defining a cavity configured for disposal of the transverse pin, the pin being engageable with the inner surface in a rigid fixation.

### Claim 15 (depends on 1)

A surgical instrument as recited in claim 1, wherein the member includes a first mating surface configured for dedicated engagement with a second mating surface of the spinal implant.

### Claim 16 (depends on 1)

A surgical instrument as recited in claim 1, wherein the image guide is oriented relative to the sensor to communicate the signal and the sensor communicates with a processor to generate data for display of an image from a monitor, the image representing position of the spinal implant relative to tissue.

### Claim 17 (depends on 16)

A surgical system as recited in claim 16, wherein the orientation of the image of the spinal implant relative to tissue is adjustable via the display from the monitor.

### Claim 18

A surgical instrument comprising:
a shaft that defines a longitudinal axis and is connectable with a spinal implant, the shaft being connected to a handle disposed transverse relative to the axis;
an actuator connected with the shaft and the handle; and
an image guide connected with the shaft and oriented relative to a sensor to communicate a signal representative of a position of the spinal implant,
the image guide being rotatable about the axis relative to the shaft and the actuator being configured to dispose the image guide between a fixed position and a non-fixed position with the shaft.

### Claim 19 (depends on 18)

A surgical instrument as recited in claim 18, wherein the actuator includes a transverse pin, and the shaft includes a wall defining a slot configured for disposal of the pin in a configuration to dispose the image guide between the fixed position and the non-fixed position with the shaft.

### Claim 20

A surgical system comprising:
a spinal implant;
a surgical instrument connectable with the spinal implant, the surgical instrument including a member defining a longitudinal axis and a handle being disposed transverse relative to the axis,
an actuator being connected with the member and the handle,
an image guide connected with the shaft and oriented relative to a sensor to communicate a signal representative of a position of the spinal implant,
the image guide being rotatable about the axis relative to the shaft and the actuator being configured to dispose the image guide between a fixed position and a non-fixed position with the shaft; and
a tracking device including the sensor that receives the signal and communicates with a processor to generate data for display of an image from a monitor, the image representing position of the spinal implant relative to tissue.
