# US 2018/0021149 A1 · Instrument for inserting a spinal implant and a spinal implant

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- Number: US 2018/0021149 A1
- Document ID: US20180021149A1
- Status: Published application
- Kind: A1
- Application number: 15/652,476
- Filed: 2017-07-18
- Published: 2018-01-25
- Earliest claimed: 2016-07-21
- Assignees: MEDICON eG Chirurgiemechaniker-Genossenschaft
- Applicants: MEDICON eG Chirurgiemechaniker-Genossenschaft
- Inventors: Heinrich Boehm; Andreas Burger; Gerd Widmaier; Klaus Wenzler
- Web page: https://patentgrep.com/patent/US20180021149A1

## CPC

- A61F 2/4611: {of spinal prostheses}
- 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 2/447: {substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section}
- A61F 2/4465: {having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine}
- A61F 2/4603: {for insertion or extraction of endoprosthetic joints or of accessories thereof}
- A61F 2002/30133: {kidney-shaped or bean-shaped}
- A61F 2002/30471: {connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type}
- A61F 2002/30523: {by means of meshing gear teeth}
- A61F 2002/30538: {for adjusting angular orientation}
- A61F 2002/4625: {with relative movement between parts of the instrument during use}
- A61F 2002/4627: {with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument}
- A61F 2002/4628: {with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping}
- A61F 2002/4629: {connected to the endoprosthesis or implant via a threaded connection}
- 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)

## Abstract

The invention relates to an operating instrument for minimally invasive or conventional implanting of a spinal implant into the intervertebral space comprising an outer tube which has a hollow handle on its proximal end, wherein the inner rod can be moved in the outer tube and the hollow handle, and the inner rod is provided with a threaded region which extends beyond the distal end of the outer tube, wherein the threaded region serves for fastening to the rear region of an implant and for tensioning the implant with its rear region against the distal end region of the outer tube, wherein the distal end region of the outer tube is at least partially adapted to the rear region of the implant, wherein the tensioning of the implant against the outer tube takes place by means of a tensioning device having a lever.

## Claims

### Claim 1

Operating instrument for implanting of a spinal implant into the intervertebral space, comprising an outer tube having proximal and distal ends, which has a hollow handle on its proximal end, wherein an inner rod can be moved in the outer tube and the hollow handle, and the inner rod is provided with a threaded region which extends beyond the distal end of the outer tube, wherein the threaded region serves for fastening to a rear region of an implant and for tensioning the implant with its rear region against the distal end of the outer tube, wherein the distal end of the outer tube is at least partially adapted to the rear region of the implant, characterised in that the tensioning of the implant against the distal end of the outer tube takes place by means of a tensioning device having a lever.

### Claim 2 (depends on 1)

Operating instrument according to claim 1, characterised in that the tensioning device has a locked position and a released position and, upon actuation of the lever of the tensioning device, the inner tube in the outer tube is moved from a released position into a locked position, in which the rear region of the implant is tensioned with the distal end of the outer tube.

### Claim 3 (depends on 1)

Operating instrument according to claim 1, characterised in that the tensioning device lever having an eccentric, the lever is hingedly connected to a tubular piece and, upon actuation of the lever, the tubular piece is moved in a longitudinal direction and locked.

### Claim 4 (depends on 1)

Operating instrument according to claim 1, characterised in that the lever is put back into the released position by means of spring elements.

### Claim 5 (depends on 1)

Operating instrument according to claim 1, characterised in that the tensioning device is self-locking.

### Claim 6 (depends on 1)

Operating instrument according to claim 1, characterised in that the lever is arranged on the handle or a tubular piece which can be moved with respect to the handle.

### Claim 7 (depends on 6)

Operating instrument according to claim 6, characterised in that a stop lies on the tubular piece on the proximal end of the inner rod and the inner rod is guided in the tubular piece and the tubular piece can be moved in the longitudinal direction with respect to the handle.

### Claim 8 (depends on 6)

Operating instrument according to claim 6, characterised in that a spring element provided on the tubular piece disengages the inner rod from the rear region of the implant in the released position.

### Claim 9 (depends on 7)

Operating instrument according to claim 7, characterised in that a spring element provided on the tubular piece disengages the inner rod from the rear region of the implant in the released position.

### Claim 10

Operating instrument for implanting a spinal implant, comprising an outer tube having a proximal and a distal end, which has a hollow handle on its proximal end, wherein an inner rod can be moved in the outer tube and the hollow handle, and the inner rod is provided with a threaded region which extends beyond the distal end of the outer tube, wherein the threaded region serves for fastening to a rear region of an implant and for tensioning the implant with its rear region against the distal end of the outer tube, wherein the distal end of the outer tube is at least partially adapted to the rear region of the implant, characterised in that the inner rod is hollow and a further holding rod, having a proximal and distal end, is provided which serves to fix the implant alone during X-ray examination, wherein the holding rod can be received in the hollow inner rod.

### Claim 11 (depends on 10)

Operating instrument according to claim 10, characterised in that the holding rod has a threaded region on its distal end for fastening to the implant.

### Claim 12 (depends on 1)

Spinal implant for use with an operating instrument according to claim 1, having an upper side and a lower side, a vertical passage opening, a front end and an implant rear which has a moveable cone having a threaded piece, characterised in that the threaded piece has an internal thread having a larger diameter for fastening the inner rod and a threaded piece having a smaller diameter for fastening the holding rod.