Method and apparatus for fixation of distal radius fractures
First Claim
Patent Images
1. A plate for stable fixation of distal radius fractures comprising:
- a) an elongated plate adapted for attachment to the dorsal surface of the radius, the plate having a proximal end and a distal end, wherein the distal end comprises first and second substantially planar surfaces, the first and second surfaces forming an included angle adapted to substantially match the curvature of the dorsal surface of the distal end of the radius, and further wherein the proximal end of the plate is curved such that the proximal end is adapted to substantially match the profile of the near distal portion of the radius;
b) a plurality of tines extending from the distal end of the plate, wherein each tine is completely integral and unitary with the plate, and further wherein each tine is oriented substantially normal to the first surface such that when the plate is located on a radius, each of the plurality of tines is adapted to extend into the radius; and
c) a plurality of openings extending through the plate adapted to receive fasteners to fasten the plate to the radius.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides both methods and apparatus for stable internal fixation of distal radius fractures. The apparatus includes a tined plate designed for implantation which is attached to the distal radius with the tines located in fragments of the distal radius and the methods are adapted to placed the plate in the proper position on the dorsal surface of the distal radius.
-
Citations
22 Claims
-
1. A plate for stable fixation of distal radius fractures comprising:
-
a) an elongated plate adapted for attachment to the dorsal surface of the radius, the plate having a proximal end and a distal end, wherein the distal end comprises first and second substantially planar surfaces, the first and second surfaces forming an included angle adapted to substantially match the curvature of the dorsal surface of the distal end of the radius, and further wherein the proximal end of the plate is curved such that the proximal end is adapted to substantially match the profile of the near distal portion of the radius; b) a plurality of tines extending from the distal end of the plate, wherein each tine is completely integral and unitary with the plate, and further wherein each tine is oriented substantially normal to the first surface such that when the plate is located on a radius, each of the plurality of tines is adapted to extend into the radius; and c) a plurality of openings extending through the plate adapted to receive fasteners to fasten the plate to the radius. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A plate for stable fixation of distal radius fractures comprising:
-
a) an elongated plate adapted for attachment to the dorsal surface of the radius, the plate having a proximal end and a distal end, wherein the distal end comprises first and second substantially planar surfaces, the first and second surfaces forming an included angle of about 130 degrees, thereby adapting the distal end of the plate to substantially match the curvature of the dorsal surface of the distal end of the radius, and further wherein the proximal end of the plate is curved such that the proximal end of the plate is adapted to substantially match the profile of the near distal surface of the radius; b) a plurality of tines extending from the distal end of the plate, wherein each tine is completely integral and unitary with the plate and at least one of the tines is located further from the proximal end of the plate than the remaining tines, and further wherein at least one of the plurality of tines has a thickness, measured in a direction from the proximal end to the distal end of the plate, greater than the thickness of the plate, and yet further wherein each tine is oriented substantially normal to the first substantially planar surface, and yet still further wherein at least one of the plurality of tines extends from the first surface of the distal end of the plate and at least one of the plurality of tines extends from the second surface of the distal end of the plate, and further wherein each tine extending from the first surface of the distal end of the plate is adapted to extend into the radius proximate the lunate fossa and each line extending from the second surface of the distal end of the plate is adapted to extend into the radius proximate the scaphoid fossa; and c) a plurality of openings extending through the plate adapted to receive fasteners to fasten the plate to the radius.
-
-
8. A combination for the stable fixation of distal radius fractures comprising:
-
a) an implantable plate adapted for attachment to the dorsal surface of the radius comprising; 1) an elongated plate having a proximal end and a distal end, wherein the distal end comprises first and second substantially planar plate surfaces, the first and second plate surfaces forming an included angle adapted to substantially match the curvature of the dorsal surface of the distal end of the radius, and further wherein the proximal end of the plate is curved such that the proximal end of the plate is adapted to substantially match the profile of the near distal portion of the radius, 2) a plurality of tines extending from the distal end of the plate, wherein each tine is completely integral and unitary with the plate, and further wherein each tine is oriented substantially normal to the first plate surface such that when the plate is located on a radius each of the plurality of tines is adapted to extend into the radius, and 3) a plurality of openings extending through the plate adapted to receive fasteners to fasten the plate to the radius; and b) a guide for accurate placement of a plurality of bores in the radius, each of the plurality of bores corresponding to one of the plurality of tines extending from the plate, the guide comprising; 1) an elongated body adapted for placement on the dorsal surface of the radius, the body having a proximal end and a distal end, wherein the distal end comprises first and second substantially planar guide surfaces, the first and second guide surfaces forming an included angle adapted to substantially match the curvature of the dorsal surface of the distal end of the radius, 2) a plurality of guide openings extending through the distal end of the body, wherein each guide opening is oriented substantially normal to the first guide surface such that when the guide is located on the dorsal surface of the distal end of a radius each of the plurality of guide openings is axially aligned with each of the plurality of tines. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A method for fixating a distal radius fracture comprising the steps of:
-
a) positioning a guide over the dorsal surface of the distal end of the radius, the guide comprising; 1) an elongated body adapted for placement on the dorsal surface of the radius, the body having a proximal end and a distal end, wherein the distal end comprises first and second substantially planar guide surfaces, the first and second guide surfaces forming an included angle adapted to substantially match the curvature of the dorsal surface of the distal end of the radius, 2) a plurality of guide openings extending through the distal end of the body, wherein each guide opening is oriented substantially normal to the first guide surface; b) forming a plurality of pilot holes in the distal end of the radius, each of the pilot holes formed in axial alignment with a corresponding guide opening, at least one of the pilot holes located proximate the lunate fossa and at least one of the pilot holes formed proximate the scaphoid fossa; c) removing the guide from the radius; d) locating an implantable device on the distal end of the radius, the device comprising; 1) an elongated plate adapted for attachment to the dorsal surface of the radius, the plate having a proximal end and a distal end, wherein the distal end comprises first and second substantially planar surfaces, the first and second surfaces forming an included angle adapted to substantially match the curvature of the dorsal surface of the distal end of the radius, and further wherein the proximal end of the plate is curved such that the proximal end is adapted to substantially match the profile of the near distal portion of the radius, 2) a plurality of tines extending from the distal end of the plate, wherein each tine is completely integral and unitary with the plate, and further wherein each tine is oriented substantially normal to the first surface such that when the plate is located on the dorsal surface of the distal end of a radius each of the plurality of tines extends into a corresponding one of the plurality of pilot holes in the radius, and 3) a plurality of openings extending through the plate adapted to receive fasteners to fasten the plate to the radius; and e) attaching the plate to the radius with a plurality of threaded fasteners extending through the plurality of openings in the plate and into the radius. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
-
Specification