# US 2018/0021141 A1 · Sacroiliac joint immobilization

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- Number: US 2018/0021141 A1
- Document ID: US20180021141A1
- Status: Published application
- Kind: A1
- Application number: 15/722,323
- Filed: 2017-10-02
- Published: 2018-01-25
- Earliest claimed: 2003-03-10
- Assignees: Ilion Medical, Inc.
- Applicants: Ilion Medical, Inc.
- Inventors: John G. Stark
- Web page: https://patentgrep.com/patent/US20180021141A1

## CPC

- A61F 2/32: for the hip
- A61B 17/1615: {Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material}
- A61B 17/1757: {for the spine}
- A61B 17/68: Internal fixation devices {, including fasteners and spinal fixators, even if a part thereof projects from the skin (bone staples A61B17/0642)}
- A61B 17/846: {Nails or pins, i.e. anchors without movable parts, holding by friction only, with or without structured surface (A61B17/72, A61B17/86 take precedence)}
- A61B 17/86: Pins or screws {or threaded wires; nuts therefor (A61B17/72 take precedence)}
- A61B 17/8897: {Guide wires or guide pins}
- A61F 2/30771: {applied in original prostheses, e.g. holes or grooves}
- A61F 2/30988: {Other joints not covered by any of the groups A61F2/32 - A61F2/4425}
- A61F 2/4601: {for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity}
- A61F 2002/30622: {Implant for fusing a joint or bone material}
- A61F 2002/3085: {with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface}
- A61F 2002/3093: {for promoting ingrowth of bone tissue}
- A61F 2002/30995: {for sacro-iliac joints}
- 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

Improved tools and procedures relate to the immobilization of the sacroiliac joint for the treatment of pain associated with the joint. Kits comprise, for example, a guide element and an immobilization element of a biocompatible material with a size and shape suitable for placement within the sacroiliac joint. Suitable immobilization elements include, for example, pins, nails, screws, darts, wedges, shims and hardening material. A bioactive agent can be delivered into the joint to compliment the immobilization and promote healing. Suitable procedures can be done in a less invasive procedure through a cannula or the like.

## Claims

### Claim 1

A tool set for an orthopedic procedure, the set comprising:
a cannula comprising a generally cylindrical open channel extending along the length of the cannula;
a threaded drill bit comprising an outer surface that fits within the open channel of the cannula;
an immobilization element comprising bone and being a pin, nail, dart, wedge or shim with an outer surface that fits within the open channel wherein the immobilization element is insertable through the open channel of the cannula within the joint between an ilium bone and a sacrum bone.

### Claim 2 (depends on 1)

The tool set of claim 1 further comprising a guide pin and wherein the threaded drill bit comprising metal and having a bore sized to receive the guide pin.

### Claim 3 (depends on 1)

The tool set of claim 1 wherein the immobilization element is tapered.

### Claim 4 (depends on 1)

The tool set of claim 1 further comprising bone morphogenic protein associated with the immobilization element.

### Claim 5 (depends on 1)

The tool set of claim 1 wherein the drill bit further comprises length markings along the shaft, and further comprising a drill wherein the drill bit further comprises a shaft having a proximal end adapted to fit into the drill.