Device for orienting appliances, prostheses, and instrumentation in medical procedures and methods of making same

• US 5,098,383 A
• Filed: 02/08/1990
• Issued: 03/24/1992
• Est. Priority Date: 02/08/1990
• Status: Expired due to Term

• Current Assignee: BHC Engineering Limited Partnership
• Original Assignee: Artifax Limited
• Inventors: Hemmy, David C., Baker, Gregg S., Hafeli, Paul B.
• Primary Examiner(s): Hirsch, Paul J.
• Application Number:
  US07/476,951
• Time in Patent Office: 775 Days
• Field of Search: 604/116, 606/96
• US Class Current: 604/116
• CPC Class Codes: A61B 17/17 Guides or aligning means for drills , mills, pins or wires
• CPC Class Codes: A61B 17/1728 for holes for bone plates or plate screws
• CPC Class Codes: A61B 17/1757 for the spine
• CPC Class Codes: A61M 5/427 Locating point where body is to be pierced, e.g. vein location means using ultrasonic waves, injection site templates

Abstract

A guide, and methods for its manufacture and use, for use with a medical instrument whereby the instrument must contact a patient'"'"'s tissue at a particular location. Given the specific patient'"'"'s tissue geometry, the general medical procedure and the specific practitioner'"'"'s requests, if any, a nonadjustable guide is specifically manufactured such that one or more locations of the invention attaches to and/or abuts against a portion of patient tissue correctly orienting the device with respect to the patient'"'"'s tissue geometry for purposes of performing the given medical task. The remaining geometric features of the device are dictated by the task for which it is designed and other characteristics of the tissue.

Claims

1. A guide for performing a medical task during a medical procedure, wherein an instrument must contact a patient tissue at an appropriate location, and wherein a reference point corresponding to a three-dimensional tissue geometry of the patient tissue, and corresponding to a surface of a landmark, is determined prior to performing the medical task, the guide comprising:

positioning means, having a predefined positioning surface, for positioning the guide to remain in a fixed location with respect to the landmark surface, wherein the positioning surface has a three-dimensional configuration corresponding to the reference point; and

orienting means, fixedly connected to the positioning means, for guiding the instrument to contact the patient tissue at the appropriate location when the guide is in the fixed location.

2. The guide of claim 1 wherein the positioning surface is placed adjacent to the landmark surface during the medical task.

3. The guide of claim 1 wherein the positioning surface further comprises a portion wherein the portion matches a plurality of points of the landmark surface.

4. The guide of claim 2 wherein the positioning surface further comprises a portion wherein the portion matches a plurality of points of the landmark surface.

5. The guide of any of claims 1-4 wherein the orienting means further comprising an orienting portion defining an orienting hole, for guiding the instrument to contact the patient tissue at the appropriate location when the instrument is inserted in the orienting hole.

6. The guide of any of claims 1-4 wherein the orienting means further comprises an orienting portion defining an orienting surface, for guiding the instrument to contact the patient tissue at the appropriate location when the instrument is placed adjacent to the orienting surface.

7. The guide of claim 1 further comprises securing means, connected to the positioning means, for attaching the positioning surface to the landmark surface.

8. The guide of claim 7 wherein the securing means includes a securing portion defining a securing hole.

9. The guide of claim 1 further comprises securing means, connected to the positioning means, for removably attaching the positioning surface to the landmark surface

10. The guide of claim 9 wherein the securing means includes a securing portion defining a securing hole.

11. A guide for use with an instrument in performing a medical task during a medical procedure on a patient tissue, wherein the instrument must contact a patient tissue at an appropriate location, and wherein a reference point corresponding to a three-dimensional tissue geometry of the patient tissue, and corresponding to a surface of a patient tissue used as a landmark, is determined prior to performing the task, and wherein the guide is a monolithic structure, the monolithic structure comprising:

positioning means for positioning the guide to fit along the landmark surface, wherein the positioning means has a predefined positioning surface, and the positioning surface is placed adjacent to the landmark surface during the task, wherein the positioning surface has a three-dimensional configuration corresponding to the reference point; and

orienting means, fixedly connected to the positioning means, for guiding the instrument to contact the patient tissue at the appropriate location when the positioning surface is placed adjacent to the landmark surface.

12. The monolithic structure of claim 11 wherein the orienting means further comprises an orienting portion defining an orienting opening, for guiding the instrument to contact the patient tissue at the appropriate location when the instrument is placed adjacent to the orienting opening.

13. The monolithic structure of claim 11 wherein the orienting means further comprises an orienting portion defining an orienting surface, for guiding the instrument to contact the patient tissue at the appropriate location when the instrument is placed adjacent to the orienting surface.

14. The monolithic structure of claim 11 wherein the instrument must contact a patient tissue at a plurality of appropriate locations, and wherein the orienting means further comprises an orienting portion defining a plurality of orienting openings, for guiding the instrument to contact the patient tissue at the appropriate locations when the instrument is placed adjacent to the plurality of orienting openings.

15. The monolithic structure of claim 11 further comprising securing means, connected to the positioning means, for attaching the positioning surface adjacent to the landmark surface.

16. The monolithic structure of claim 15 wherein the securing means includes a securing portion defining a plurality of securing holes, for guiding a securing device to contact the patient tissues when the securing device is inserted in the securing hole.

17. The monolithic structure of claim 11 further comprising securing means, connected to the positioning means, for removably attaching the positioning surface to the landmark surface.

18. The monolithic structure of claim 17 wherein the securing means includes a securing portion defining a securing hole, for guiding a securing device to contact the patient tissue when the securing device is inserted in the securing hole.

19. The monolithic structure of claim 11 wherein a plurality of reference points, corresponding to the surface of the patient tissue used as a landmark, are determined prior to performing the task, and wherein the positioning means has the positioning surface which corresponds to the plurality of reference points.

20. The monolithic structure of claim 19 wherein the positioning surface provides a contour which matches a contour of the landmark surface.

21. The monolithic structure of claim 19 wherein the positioning surface corresponds to the plurality of reference points and wherein the positioning surface provides a contour which matches a contour of the landmark surface.

22. A guide, for performing a medical task during a medical procedure wherein an instrument must contact a patient tissue at an appropriate location, and wherein a reference point corresponding to a three-dimensional tissue geometry of the patient tissue, and corresponding to a subgroup of a plurality of reference points on a surface of a patient tissue to be used as a landmark, is determined prior to performing the medical task, the guide comprising:

positioning means, having a predefined positioning surface, for positioning the guide to fit along the landmark, and the positioning surface is placed adjacent to the landmark during the task, wherein the positioning surface has a three-dimensional configuration corresponding to the subgroup of the plurality of reference points; and

orienting means, fixedly connected to the positioning means, for guiding the instrument to contact the patient tissue at the appropriate location when the positioning surface is placed adjacent to the landmark.

23. The guide of claim 22 wherein the positioning surface further comprises a contour portion, corresponding to a subgroup of the plurality of reference points, which matches the contour of a landmark.

24. The guide of claim 22 wherein the orienting means further comprises an orienting portion defining an orienting hole, wherein the instrument is inserted in the orienting hole and guided to contact the patient tissue at the appropriate location when the guide is in the fixed location.

25. The guide of any of claims 22-23 wherein the orienting means further comprises an orienting surface, for guiding the instrument to contact the patient tissue at the appropriate location when the instrument is placed adjacent to the orienting surface.

26. The guide of claim 22 further comprising a securing means, fixedly connected to the positioning means, for removable attachment of the positioning surface adjacent to the landmark.

27. The guide of claim 26 wherein the securing means includes a securing portion defining a plurality of securing holes.

28. The guide of claim 23 further comprising a securing means, fixedly connected to the positioning means, for removable attachment of the positioning surface adjacent to the landmark.

29. The guide of claim 28 wherein the securing means includes a securing portion defining a securing hole.