US5197966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiodorsal buttress blade plate implant for repairing distal radius fractures
Assignee: Individual
•
Filing: 1992-05-22
•
Granted: 1993-03-30
•
Expires: 2012-05-22
Abstract
Abstract A radiodorsal buttress blade plate assembly includes blades that are rigidly secured to a side plate and are arranged in an offset position to facilitate placement in close proximity to the cortical bone surface.
Inventors
- 👤 T. Greg Sommerkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:15
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/80; A61B17/8061; Y; Y10; Y10S; Y10S606/00; Y10S606/902
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
203 words
An implantable radiodorsal buttress blade plate assembly for repairing a distal radius fracture, comprising: a) an elongated side plate extending in a first direction between first and second longitudinal ends, said side plate having an abutment surface that is configured to match the anatomical contours of a distal radiodorsal portion of a radius bone, said side plate having a first enlarged portion proximal to one of its longitudinal ends in which the side plate extends in a second direction perpendicular to the first direction for a distance greater than the corresponding extension in the second direction of a second adjacent portion of the side plate; b) a plurality of openings extending through said side plate, each of said openings being spaced from each other in the first direction and being dimensioned and configured to accommodate a screw for securing the side plate to the radius bone; c) a pair of elongated blades rigidly secured to and extending outwardly from the abutment surface at the enlarged portion of the side plate, each of said blades extending in a third direction generally perpendicular to both the first and second directions, said blades being spaced from each other in the both the first and second directions.
Claim 2
Dependent Claim
203 words
An implantable radiodorsal buttress blade plate assembly for repairing a distal radius fracture, comprising: a) an elongated side plate extending in a first direction between first and second longitudinal ends, said side plate having an abutment surface that is configured to match the anatomical contours of a distal radiodorsal portion of a radius bone, said side plate having a first enlarged portion proximal to one of its longitudinal ends in which the side plate extends in a second direction perpendicular to the first direction for a distance greater than the corresponding extension in the second direction of a second adjacent portion of the side plate; b) a plurality of openings extending through said side plate, each of said openings being spaced from each other in the first direction and being dimensioned and configured to accommodate a screw for securing the side plate to the radius bone; c) a pair of elongated blades rigidly secured to and extending outwardly from the abutment surface at the enlarged portion of the side plate, each of said blades extending in a third direction generally perpendicular to both the first and second directions, said blades being spaced from each other in the both the first and second directions.
Claim 3
Dependent Claim
46 words
An implantable buttress blade plate assembly as recited in claim 1 wherein the blades are arranged such that a line connecting the respective center lines of the blades intersects the longitudinal axis of the side plate at an angle ranging from approximately 4 to 16 degrees.
Claim 4
Dependent Claim
36 words
An implantable buttress blade plate assembly as recited in claim 2 wherein the line connecting the respective center lines intersects the longitudinal axis of the side plate at an angle of approximately 7 to 11 degrees.
Claim 5
Dependent Claim
34 words
An implantable buttress blade plate assembly as recited in claim 2 wherein the line connecting the respective center lines intersects the longitudinal axis of the side plate at an angle of approximately 7 degrees.
Claim 6
Dependent Claim
31 words
An implantable buttress blade plate assembly as recited in claim 2 wherein said plurality of openings extending through said side plate includes at least three openings aligned in the first direction.
Claim 7
Dependent Claim
48 words
An implantable buttress blade plate assembly as recited in claim 5 wherein said plurality of openings extending through said side plate includes a first series of openings on a proximal side of the blades and a second series of openings disposed on a distal side of the blades.
Claim 8
Dependent Claim
39 words
An implantable buttress blade plate assembly as recited in claim 6 further including a plurality of screws extending through the openings spaced in the first direction, said screws being operative to secure the side plate to the radius bone.
Claim 9
Dependent Claim
23 words
An implantable buttress blade plate assembly as recited in claim 7 wherein said plurality of screws has a diameter of approximately 3.5 mm.
Claim 10
Dependent Claim
65 words
An implantable buttress blade plate assembly as recited in claim 8 further including a first set of screws extending through the first proximal series of openings and a second set of screws extending through the second distal openings, each of the first set of screws having a diameter of approximately 2.7 mm and each of the second screws having a diameter of approximately 2.0 mm.
Claim 11
Dependent Claim
22 words
An implantable buttress blade plate assembly as recited in claim 2 wherein the side plate and the blades have a unibody construction.
Claim 12
Dependent Claim
35 words
An implantable buttress blade plate assembly as recited in claim 2 wherein at least one of the blades is on each side of a center line of the side plate extending in the first direction.
Claim 13
Dependent Claim
30 words
An implantable buttress blade plate assembly as recited in claim 5 wherein one of the three openings aligned in the first direction is a slot extending in the first direction.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-03-29 | 1996-09-28 | 1997-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-29 | 2000-09-28 | 2001-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-29 | 2004-09-28 | 2005-03-30 | $7700.00 | Window Closed / Lapsed |