# US 10,478,241 B2 · Articulating osteotome with cement delivery channel

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- Number: US 10,478,241 B2
- Document ID: US10478241B2
- Status: Granted
- Kind: B2
- Application number: 15/793,509
- Filed: 2017-10-25
- Published: 2018-05-03
- Granted: 2019-11-19
- Earliest claimed: 2016-10-27
- Assignees: Merit Medical Systems, Inc.
- Applicants: Dfine, Inc.
- Inventors: Craig Purdy; Dan Balbierz
- Web page: https://patentgrep.com/patent/US10478241B2

## CPC

- A61B 17/8811: {characterised by the introducer tip, i.e. the part inserted into or onto the bone}
- A61B 17/1671: {for the spine}
- A61B 17/8819: {characterised by the introducer proximal part, e.g. cannula handle, or by parts which are inserted inside each other, e.g. stylet and cannula (A61B17/8825 takes precedence)}
- A61B 17/1604: {Chisels; Rongeurs; Punches; Stamps}
- A61B 17/1642: {for producing a curved bore}
- A61B 17/3472: {for bones, e.g. intraosseus injections}
- A61B 2017/003: {Steerable}
- A61B 2017/00309: {Cut-outs or slits}
- A61B 2017/00323: {Cables or rods}
- A61B 2018/00339: {Spine, e.g. intervertebral disc}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

The present disclosure illustrates an osteotome for treating hard tissue. The osteotome embodiments described herein include a shaft with a working end configured to displace hard tissue and a lumen to deliver material through the shaft. The working end may create pathways by selectively transitioning from a linear to a non-linear configuration. The lumen may deliver material through the shaft while the working end is in a linear or a non-linear configuration allowing precise filling of the pathways.

## Claims

### Claim 1

A medical device for treating hard tissue, comprising: a conduit having a series of slots along a first side of an articulating distal portion of the conduit; a rod extending through the conduit, the rod including a flexible portion; a handle including an actuating portion coupled to a proximal end of the rod, wherein movement of the actuating portion results in an associated movement of the rod and the conduit to selectively move the articulating distal portion between a linear configuration and an articulated configuration; and a side port coupled to the handle with an insertion guide that extends to an accessible portion of the conduit extending along the conduit to a distal end of the conduit; further comprising a lumen inserted in the insertion guide and extending through the conduit, wherein the lumen is semicylindrical, and wherein the semicylindrical flexible portion of the rod and the lumen are positioned within the conduit to form a cylinder that fills the conduit.

### Claim 2 (depends on 1)

The medical device of claim 1, further comprising a lumen port with a clip coupled to the lumen, and wherein the side port includes a clip holster to secure the lumen port to the side port.

### Claim 3 (depends on 2)

The medical device of claim 2, wherein the lumen port is configured to selectively couple to a thermal energy delivery probe, a cement delivery cartridge, and a biopsy tool.

### Claim 4 (depends on 2)

The medical device of claim 2, wherein the lumen is selectively removable and replaceable.

### Claim 5 (depends on 1)

The medical device of claim 1, wherein the conduit includes a notch on the first side of the distal portion, wherein the conduit and rod are attached by a weld joint around a perimeter of the notch.

### Claim 6 (depends on 1)

The medical device of claim 1, wherein the articulating distal portion has sufficient strength to mechanically displace tissue within a vertebra of a patient.

### Claim 7 (depends on 1)

The medical device of claim 1, wherein the articulating distal portion is configured to transition from the linear configuration to the articulated configuration in only a single plane.

### Claim 8 (depends on 2)

The medical device of claim 2, further comprising a stylet selectively inserted in the lumen and extending through the lumen for additional support to the articulating distal portion.

### Claim 9 (depends on 1)

The medical device of claim 1, wherein the handle further includes a force limiter that disengages the actuating portion from the proximal end of the rod when a target force is exerted on the actuating portion.

### Claim 10 (depends on 1)

The medical device of claim 1, wherein the flexible portion comprises a semicylindrical portion coupled to the articulating distal portion of the conduit and contiguous with the first side of the conduit.

### Claim 11 (depends on 1)

The medical device of claim 1, further comprising a sharp tip located at an end of the articulating distal portion of the conduit to penetrate hard tissue.

### Claim 12

A medical device for treating hard tissue within a vertebra of a patient, the medical device comprising:
a shaft having an articulating portion, the shaft comprising:
a hollow conduit with a series of slots along a first side to permit deflection, and
a semicylindrical rod extending through the hollow conduit and contiguous with the first side of the hollow conduit,
wherein the hollow conduit and semicylindrical rod are coupled at a distal end of the articulating portion such that a force applied along an axis of the semicylindrical rod translates to a deflection in the articulating portion to move reversibly between a linear configuration and an articulated configuration, where the series of slots and the semicylindrical rod limit movement between the linear configuration and the articulated configuration to a single plane;
a side port with a clip holster that extends to an accessible portion of the shaft extending along the hollow conduit to a distal end of the conduit; and
a lumen having a clip to selectively secure the lumen to an insertion guide, the lumen extending through the hollow conduit with openings at both ends to permit movement of material through the shaft without being in contact with the shaft.

### Claim 13 (depends on 12)

The medical device of claim 12, wherein the articulating portion has sufficient strength to mechanically displace tissue within a vertebra of a patient.

### Claim 14 (depends on 12)

The medical device of claim 12, wherein the shaft further comprises a pointed distal end that is configured to penetrate bone within a vertebra of a patient.

### Claim 15 (depends on 12)

The medical device of claim 12, wherein the lumen comprises a threaded interface to selectively couple to a thermal energy delivery probe, a cement delivery cartridge, and a biopsy tool.

### Claim 16 (depends on 12)

The medical device of claim 12, further comprising a stylet selectively inserted in the lumen and extending through the lumen for additional support to the articulating portion.

### Claim 17 (depends on 12)

The medical device of claim 12, further comprising a handle including an actuating portion coupled to a proximal end of the rod, wherein manipulation of the actuating portion causes deflection of the articulating portion.

### Claim 18 (depends on 17)

The medical device of claim 17, wherein the handle further includes a force limiter that disengages the actuating portion from the proximal end of the rod when a target force is exerted on the actuating portion.

### Claim 19 (depends on 12)

The medical device of claim 12, wherein the lumen is selectively removable and replaceable.

### Claim 20 (depends on 12)

The medical device of claim 12, further comprising a source of a bone cement material that is fluidly coupled to the lumen for the bone cement material to pass through the lumen to exit at the distal end of the articulating portion.