US3738004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bone implant and method of implantation
Assignee: Individual
•
Filing: 1971-03-01
•
Granted: 1973-06-12
•
Expires: 1991-03-01
Abstract
Abstract A bone implant having a thin elongated, flat, arcuate blade portion which is adapted to be implanted in a bone so as to avoid unviolatable physiological landmarks having at least one integral neck portion projecting from the blade portion and lying within substantially the same plane as the blade portion but adapted to extend out of the bone when the blade portion is implanted and to which various attachments may be secured. The blade portion has at least one end remote from the neck portion which end is sharpened and is adapted to incise the bone upon the application of a force to the neck portion which force has a component acting in the direction of the one end. The implant is implanted by first cutting a starting slot of a width approximate the thickness of the implant and of a length substantially less than the length of the implant, positioning the implant in the slot with the one sharpened end against one end of the slot, forcing the implant in the direction of the one end so that the one end incises the bone in an arcuate path, forcing the other end of the implant down into the slot when the other end overlies the slot, and forcing the implant in the direction of the other end until a locking projection on the implant engages uncut bone.
Inventors
- 👤 A Edelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:35
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0089; A61C8/0018; A61C8/0019
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
154 words
A bone implant having a thin, elongated, flat arcuate blade portion adapted to be implanted in a bone and at least one integral neck portion angularly projecting from said blade portion and lying within substantially the same plane as said blade portion, said blade portion having at least one longitudinal end remote from said neck portion which end is sharpened and is adapted to incise the bone upon the application of a force to the neck portion which has a component acting in the direction of said one end, said neck portion having an aperture extending therethrough in a direction normal to said plane, for receiving the short angled end of a force applying tool which has an elongated shank portion extending at substantially a right angle with respect to said short angled end by meaNs of which a force acting in a direction lying within said plane may be applied to said implant.
Claim 2
Dependent Claim
154 words
A bone implant having a thin, elongated, flat arcuate blade portion adapted to be implanted in a bone and at least one integral neck portion angularly projecting from said blade portion and lying within substantially the same plane as said blade portion, said blade portion having at least one longitudinal end remote from said neck portion which end is sharpened and is adapted to incise the bone upon the application of a force to the neck portion which has a component acting in the direction of said one end, said neck portion having an aperture extending therethrough in a direction normal to said plane, for receiving the short angled end of a force applying tool which has an elongated shank portion extending at substantially a right angle with respect to said short angled end by meaNs of which a force acting in a direction lying within said plane may be applied to said implant.
Claim 3
Dependent Claim
14 words
The bone implant set forth in claim 1 wherein said one end is pointed.
Claim 4
Dependent Claim
20 words
The bone implant set forth in claim 2 wherein the blade portion has a hooked projection adjacent said pointed end.
Claim 5
Dependent Claim
23 words
The bone implant set forth in claim 1 wherein said blade portion has at least one opening therein into which bone may grow.
Claim 6
Dependent Claim
22 words
The bone implant set forth in claim 1 wherein said blade portion has a pair of opposite longitudinal ends which are sharpened.
Claim 7
Dependent Claim
27 words
The bone implant set forth in claim 5 wherein one of said opposite terminal ends is pointed and the other of said opposite terminal ends is bifucated.
Claim 8
Dependent Claim
20 words
The bone implant set forth in claim 6 wherein said blade portion has a hooked projection adjacent said pointed end.
Claim 9
Dependent Claim
32 words
The bone implant set forth in claim 5 wherein both of said opposite terminal ends are pointed and a hooked projection extends from said blade portion adjacent each of said terminal ends.
Claim 10
Dependent Claim
43 words
The bone implant set forth in claim 8 wherein a circular hole extends through said blade portion in the region of one of said pointed ends and an elongated slot extends through said blade portion in the region of said other terminal end.
Claim 11
Dependent Claim
32 words
The bone implant set forth in claim 5 wherein each of said opposite terminal ends are bifucated and grooves extend longitudinally along opposite sides of said blade between said bifucated terminal ends.
Claim 12
Dependent Claim
25 words
The bone implant set forth in claim 10 wherein at least one aperture is provided in said blade portion along the length of said grooves.
Claim 13
Dependent Claim
26 words
The bone implant set forth in claim 10 wherein a hooked projection extends from said blade portion in the region of one of said bifucated ends.
Claim 14
Dependent Claim
55 words
The bone implant set forth in claim 1 wherein said blade portion has a curved shoulder edge on the same side of the blade portion as said neck portion and a curved leading edge opposite said shoulder edge, the curvature of said shoulder edge and of said leading edge facing in the same general direction.
Claim 15
Dependent Claim
33 words
The implant set forth in claim 13 wherein said leading edge is sharpened along its entire length and said shoulder edge is sharpened at least in the region of said one longitudinal end.
Claim 16
Dependent Claim
24 words
The implant set forth in claim 14 wherein said shoulder edge and said leading edge converge to a point at said one longitudinal end.
Claim 17
Dependent Claim
22 words
The implant set forth in claim 13 wherein said shoulder edge and said leading edge are curved away from said neck portion.
Claim 18
Dependent Claim
21 words
The implant set forth in claim 13 wherein said shoulder edge and said leading edge are curved toward said neck portion.
Claim 19
Dependent Claim
13 words
The implant set forth in claim 5 wherein said blade portion is crescent-shaped.
Claim 20
Dependent Claim
19 words
The implant set forth in claim 18 wherein a notch is provided along one edge of said crescent-shaped blade.
Claim 21
Dependent Claim
14 words
The implant set forth in claim 5 wherein both of said ends are curved.
Claim 22
Dependent Claim
23 words
The implant set forth in claim 20 wherein said blade portion has a curved hook formation on one end remote from said neck.
Claim 23
Dependent Claim
179 words
A bone implant comprising a pair of complementary implants adapted to be implanted in linear abutting relationship to form a continuous arch imbedded in the bone, each of said implants having a thin, elongated, flat, arcuate blade portion forming a different segment of said arch, and at least one integral neck portion angularly projecting from said blade portion and lying within substantially the same plane as said blade portion, said blade portion having at least one longitudinal end remote from said neck portion which is sharpened and is adapted to incise the bone upon the application of a force to the neck portion which has a component acting in the direction of said one end, and a second end nearer said neck portion, said second end of one of said complementary pair of being complementary to the second end of the other of said implants so that when the implants are aligned in the same plane the second ends of the complementarY implants will abut in contiguous relationship, and the remote ends will form the ends of said arch.
Claim 24
Dependent Claim
179 words
A bone implant comprising a pair of complementary implants adapted to be implanted in linear abutting relationship to form a continuous arch imbedded in the bone, each of said implants having a thin, elongated, flat, arcuate blade portion forming a different segment of said arch, and at least one integral neck portion angularly projecting from said blade portion and lying within substantially the same plane as said blade portion, said blade portion having at least one longitudinal end remote from said neck portion which is sharpened and is adapted to incise the bone upon the application of a force to the neck portion which has a component acting in the direction of said one end, and a second end nearer said neck portion, said second end of one of said complementary pair of being complementary to the second end of the other of said implants so that when the implants are aligned in the same plane the second ends of the complementarY implants will abut in contiguous relationship, and the remote ends will form the ends of said arch.
Claim 25
Dependent Claim
27 words
The bone implant set forth in claim 22 wherein the blade portion of one implant of said complementary pair has a hooked projection adjacent said remote end.
Claim 26
Independent Claim
261 words
A method for implanting a bone implant of the type having a thin, elongated, flat, arcuate blade portion provided with at least one sharpened end, and a neck portion projecting from one arcuate edge of said blade portion so as to avoid violating physiological landmarks, said neck portion being a planar extension of said blade portion and having an aperture extending therethrough in a direction normal to a medial longitudinal plane common to said neck and said blade portion, comprising cutting a thin starting slot in the bone in the region of said landmark of a width approximate the width of said blade portion in the region of said neck and of a length substantially less than the length of said implant, inserting one end of said blade portion in said slot against one end thereof in a manner such that the arcuate blade portion arches toward said bone, inserting into said aperture the short angled end of a force applying tool which has an elongated shank portion extending at substantially a right angle with respect to said short angled end, manipulating said force applying tool for forcing said implant in a direction toward the one sharpened end so that the sharpened end incises the bone in an arcuate path sufficiently to permit the other end of the blade portion to be forced down into the starting slot, forcing said other end of the blade portion into the starting slot, and applying force to the implant in the direction of said other end to force said other end into uncut bone.
Claim 27
Independent Claim
261 words
A method for implanting a bone implant of the type having a thin, elongated, flat, arcuate blade portion provided with at least one sharpened end, and a neck portion projecting from one arcuate edge of said blade portion so as to avoid violating physiological landmarks, said neck portion being a planar extension of said blade portion and having an aperture extending therethrough in a direction normal to a medial longitudinal plane common to said neck and said blade portion, comprising cutting a thin starting slot in the bone in the region of said landmark of a width approximate the width of said blade portion in the region of said neck and of a length substantially less than the length of said implant, inserting one end of said blade portion in said slot against one end thereof in a manner such that the arcuate blade portion arches toward said bone, inserting into said aperture the short angled end of a force applying tool which has an elongated shank portion extending at substantially a right angle with respect to said short angled end, manipulating said force applying tool for forcing said implant in a direction toward the one sharpened end so that the sharpened end incises the bone in an arcuate path sufficiently to permit the other end of the blade portion to be forced down into the starting slot, forcing said other end of the blade portion into the starting slot, and applying force to the implant in the direction of said other end to force said other end into uncut bone.
References Cited (Backward Citations)
US693884A
Cited
US3577853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |