Systems and methods for facilitating surgical procedures involving custom medical implants

• US 20070118055A1
• Filed: 11/06/2006
• Published: 05/24/2007
• Est. Priority Date: 11/04/2005
• Status: Abandoned Application

• Current Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Original Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Inventors: McCombs, Daniel
• Application Number:
  US11/593,294
• Publication Number:
  US 20070118055A1
• Time in Patent Office: Days
• US Class Current: 600/587
• CPC Class Codes: A61B 17/154 for preparing bone for knee prosthesis
• CPC Class Codes: A61B 17/16 Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans arthroscopic bone cutters A61B17/320016; dental implant drills potentially for other surgical use A61C8/0089; bone grinders A61F2/4644, A22C17/06; A61B17/1662 takes precedence over all other subgroups except A61B17/17
• CPC Class Codes: A61B 17/1703 using imaging means, e.g. by X-rays
• CPC Class Codes: A61B 2034/107 Visualisation of planned trajectories or target regions
• CPC Class Codes: A61B 2034/108 Computer aided selection or customisation of medical implants or cutting guides
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 5/103 Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes A61B5/08 takes precedence; measuring aids for tailors A41H1/00; measuring instruments specially adapted for dentistry A61C19/04
• CPC Class Codes: A61B 5/1077 Measuring of profiles
• CPC Class Codes: A61B 5/4528 Joints A61B5/4533, A61B5/4538 take precedence
• CPC Class Codes: A61F 2/30942 for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
• CPC Class Codes: A61F 2/3859 Femoral components
• CPC Class Codes: A61F 2002/30535 Special structural features of bone or joint prostheses not otherwise provided for
• CPC Class Codes: A61F 2250/0058 Additional features; Implant or prostheses properties not otherwise provided for
• CPC Class Codes: G16H 50/50 for simulation or modelling of medical disorders

Abstract

Systems and methods for planning surgical procedures involving custom medical implants that can involve the selection, design and/or creation of custom medical implants and/or the selection, modification, and/or design of custom surgical procedures related to those implants. Certain embodiments allow implants to be selected, designed, created, or otherwise customized and then placed in patients using non-standard surgical techniques. The invention provides greater flexibility in implant use by allowing a surgeon to revise, create, or otherwise select surgical techniques for custom implants and, ultimately, provide better treatment in a greater variety of medical circumstances. Certain embodiments of the invention involve computer assisted surgery to provide for implant-related surgery involving non-standard surgical steps and/or implants.

Claims

1. ) A method of planning and executing a medical implant surgical procedure comprising:

a) receiving information about a surgical site of a patient;

b) using the information about the surgical site to determine a surgical procedure step for creating an anatomic structure attribute that allows attachment of a medical implant;

c) using information about the anatomic structure attribute to determine a custom attribute of the medical implant for attaching the medical implant to the anatomic structure attribute;

d) creating the medical implant comprising the custom attribute; and

e) implanting the medical implant at the surgical site by (i) following the surgical procedure step and (ii) attaching the medical implant custom attribute to the anatomic structure attribute.

2. ) The method of claim 1 wherein using information about the anatomic structure attribute to determine a custom attribute of the medical implant further comprises estimations of implant performance after surgeries.

3. ) The method of claim 1 wherein using the information about the surgical site to determine the surgical procedure step further comprises estimations of the difficulty of the surgical procedure step.

4. ) The method of claim 1 wherein using the information about the surgical site to determine the surgical procedure step further comprises estimations of a minimum level of skill required to perform the surgical procedure step.

5. ) A system for planning a medical implant surgical procedure comprising:

a) a user interface that allows a user to enter information about a surgical site; and

b) a display component that provides (i) an image representative of a custom attribute of a medical implant for allowing attachment at the surgical site and (ii) an image representative of an altered anatomic structure attribute for attachment of the custom attribute of the medical implant;

wherein the system allows the user to make adjustments that result in changes to the image representative of the custom attribute of the medical device and the image representative of the attribute of the altered anatomic structure.

6. ) The system of claim 5 wherein the image representative of the custom attribute of the medical device and the image representative of the attribute of the altered anatomic structure are displayed overlapping one another.

7. ) The system of claim 5 wherein the image representative of the custom attribute of the medical device and the image representative of the attribute of the altered anatomic structure are displayed adjacent to one another.

8. ) The system of claim 5 wherein the system allows the user to make adjustment through the user interface, wherein the user interface allows the user to graphically make adjustments.

9. ) The system of claim 5 wherein user adjustments are constrained by estimations of implant performance.

10. ) A method of planning and executing a medical implant surgical procedure comprising:

a) receiving input relating to an attribute of an anatomic structure for attachment of an implant;

b) using the input to determine a custom attribute of the implant for attachment to the anatomic structure attribute;

c) providing to a CAS system (i) information about the custom implant attribute and (ii) information about the anatomic structure attribute; and

d) providing during surgery from the CAS system (i) an image representative of the custom implant attribute and (ii) an image representative of the anatomic structure attribute.

11. ) The method of claim 10 wherein the image representative of the custom implant attribute overlaps the image representative of the anatomic structure attribute.

12. ) The system of claim 10 wherein the image representative of the custom implant attribute is adjacent to the image representative of the anatomic structure attribute.

13. ) The system of claim 10 wherein the CAS system further provides information regarding surgical steps associated with creating a surgical site anatomy according to the image representative of the anatomic structure attribute.