Outcome-based splinting

Patent metadata

Field	Value
Publication number	US-11723723-B2
Application number	US-202117384319-A
Country	US
Kind code	B2
Filing date	Jul 23, 2021
Priority date	Mar 8, 2019
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

A bone fracture fixation system including reference pins inserted into bone fragments of a patient in a first configuration and an image capture device configured to capture an image of the reference pins, and the bone fragments. The system includes a processor configured to receive and pre-process the captured image data. The processor pre-processes the image data by virtually re-positioning the reference pins in the first configuration into a second configuration, wherein the re-positioning virtually re-positions the bone fragments into normal alignment; and virtually generating a support device. The system includes a point-of-care production apparatus that produces a three-dimensional model of the virtually generated support device in a form that can be applied to the patient. The three-dimensional support device generated by the point-of-care production apparatus is configured to receive the reference pins in the first configuration; and simultaneously re-positions and fixes the bone fragments into normal alignment.

First claim

What is claimed is:

1. A method of reducing and fixating a bone fracture comprising
inserting one or more reference pins into one or more bone fragments of a patient in a first configuration;
capturing image data of the one or more reference pins in the first configuration, and the one or more bone fragments,
pre-processing the captured image data using a processor by
virtually re-positioning the one or more reference pins in the first configuration into a second configuration, wherein a re-positioning of the one or more reference pins into a second configuration virtually re-positions the one or more bone fragments into normal alignment;
virtually generating a support device, wherein the support device comprises one or more apertures configured to receive the one or more reference pins in the second configuration and the support device is configured to simultaneously achieve reduction and long-term fixation by repositioning and fixing the one or more bone fragments into normal alignment;

producing, at a point-of-care, a three-dimensional model of the virtually generated support device in a form that can be applied to the patient;
applying the three-dimensional model generated at the point-of-care to the one or more reference pins inserted into the one or more bone fragments of the patient in the first configuration; and
simultaneously re-positioning and fixing the one or more bone fragments into normal alignment.

2. The method of claim 1 , wherein the method comprises inserting two or more reference pins.

3. The method of claim 2 , wherein the two or more reference pins are threaded.

4. The method of claim 1 , wherein the reference pins are manufactured from a radiolucent material.

5. The method of claim 4 , wherein the one or more reference pins are manufactured from a plastic-based material.

6. The method of claim 5 , wherein the plastic-based material is selected from a group consisting of PEEK, polysulfone, polycarbonate, glass fiber, graphite fiber, polyetherimide, polyethersulfone, polyphenylsulfone, polyphenylsulfide and combinations thereof.

7. The method of claim 1 , wherein the method further comprises:
attaching one or more scanning locators to the one or more reference pins positioned in the first configuration at a proximal end.

8. The method of claim 7 , wherein the one or more scanning locators are manufactured from a radiopaque material.

9. The method of claim 8 , wherein the radiopaque material is selected from a group consisting of stainless steel, aluminum, titanium, silver, bismuth, and tantalum materials, radiopaque composite materials or combinations thereof.

10. The method of claim 1 , wherein the method further comprises:
locking the three-dimensional model to the one or more reference pins inserted into the one or more bone fragments of the patient in the first configuration.

11. The method of claim 1 , wherein the image data is captured using an image capture device.

12. The method of claim 11 , wherein the image capture device is an X-ray, MRI, CT, CBCT, or ultrasound device.

13. The method of claim 1 , wherein the three-dimensional model produced at the point-of-care is produced using a 3D printing device or a desktop CNC mill.

14. The method of claim 1 , wherein the method further comprises:
adding additional apertures during virtual generation of the support device at the discretion of a surgeon.

Assignees

• Depuy Synthes Products Inc

Inventors

• DANIEL Steffan
• Furrer Andre
• BOSSHARD Simon

Classifications

• A61B34/10 Primary

  Computer-aided planning, simulation or modelling of surgical operations · CPC title

• A61B17/56

  Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor · CPC title

• A61B17/64

  Devices extending alongside the bones to be positioned · CPC title

• A61B17/66

  {Alignment}, compression or distraction mechanisms · CPC title

• A61B17/72

  Intramedullary devices, e.g. pins or nails · CPC title