US5681320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bone-cutting guide
Assignee: Individual
•
Filing: 1996-03-26
•
Granted: 1997-10-28
•
Expires: 2016-03-26
Abstract
Abstract A bone-cutting guide having a base with a cylindrical tunnel for guiding a cutting instrument therethrough. The guide is anchored to the bone in at least three locations. A positioning arm having a distal end anchors the guide within a joint. An anchoring pin is insertable through the base alongside the cylindrical tunnel to stabilize the guide against the bone being drilled. An embodiment of the invention includes two anchoring pins on either side of the cylindrical tunnel through the base. The positioning arm can be stabilized within a joint due to stabilizing spikes extending from the distal end of the arm. A curve is provided in the positioning arm between two spikes to provide an opening through which a reamer guided through the cylindrical tunnel maybe operated.
Inventors
- 👤 David A. McGuire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:19
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/0401; A61B17/16; A61B17/1635; A61B17/1637; A61B17/1659; A61B17/1662; A61B17/1675; A61B17/17; A61B17/1714; A61B17/1739; A61B17/1764; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0805; A61B2017/0414; A61B90/00; A61B90/03; A61B2090/033; A61F2/0811
Claims Analysis
Total Claims: 56
Claim 1
Independent Claim
161 words
A method for drilling a tunnel in a bone comprising: stably attaching to the bone, a bone-cutting guide having: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; a positioning arm extending from the base and having a distal end for anchoring the guide against a first region of a bone; and an anchoring arrangement attached to the base for contact with a second region of the bone, such that the base is stably oriented with respect to the bone by contact of extensions therewith in at least three locations, counting that of the positioning arm; inserting through the cylindrical tunnel of the bone-cutting guide, a coring reamer having a circular cylinder, a cutting edge and openings in the circular cylinder at a distance from the cutting edge greater than the length of a bone core; operating the coring reamer through the bone to drill out a bone core; and removing the bone core from the coring reamer.
Claim 2
Independent Claim
161 words
A method for drilling a tunnel in a bone comprising: stably attaching to the bone, a bone-cutting guide having: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; a positioning arm extending from the base and having a distal end for anchoring the guide against a first region of a bone; and an anchoring arrangement attached to the base for contact with a second region of the bone, such that the base is stably oriented with respect to the bone by contact of extensions therewith in at least three locations, counting that of the positioning arm; inserting through the cylindrical tunnel of the bone-cutting guide, a coring reamer having a circular cylinder, a cutting edge and openings in the circular cylinder at a distance from the cutting edge greater than the length of a bone core; operating the coring reamer through the bone to drill out a bone core; and removing the bone core from the coring reamer.
Claim 3
Independent Claim
75 words
A method for drilling a tunnel in a bone comprising: anchoring a bone-cutting guide having a cylindrical guide tunnel to at least three locations on the bone; inserting a coring reamer through the cylindrical guide tunnel of the bone-cutting guide; operating the coring reamer through the bone to drill out a bone core; and inserting a pushing member through an opening in the coring reamer to push out the bone core from the coring reamer.
Claim 4
Independent Claim
75 words
A method for drilling a tunnel in a bone comprising: anchoring a bone-cutting guide having a cylindrical guide tunnel to at least three locations on the bone; inserting a coring reamer through the cylindrical guide tunnel of the bone-cutting guide; operating the coring reamer through the bone to drill out a bone core; and inserting a pushing member through an opening in the coring reamer to push out the bone core from the coring reamer.
Claim 5
Dependent Claim
124 words
A bone-cutting guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; a positioning arm adjustably mounted to the base and having a seating portion at a distal end for seating against a first region of a bone, the seating portion being shaped to define an open region through which the cutting instrument inserted through the cylindrical tunnel can be operated; two anchoring pins insertable through the base along opposite sides of the cylindrical tunnel for contacting a second region of the bone; and means for ratchet engagement between the base and the two anchoring pins to allow the anchoring pins to be extended from the base but prevent the two anchoring pins from being retracted back into the base.
Claim 6
Dependent Claim
124 words
A bone-cutting guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; a positioning arm adjustably mounted to the base and having a seating portion at a distal end for seating against a first region of a bone, the seating portion being shaped to define an open region through which the cutting instrument inserted through the cylindrical tunnel can be operated; two anchoring pins insertable through the base along opposite sides of the cylindrical tunnel for contacting a second region of the bone; and means for ratchet engagement between the base and the two anchoring pins to allow the anchoring pins to be extended from the base but prevent the two anchoring pins from being retracted back into the base.
Claim 7
Dependent Claim
19 words
The bone-cutting guide according to claim 3, wherein the bone is the tibia in positions proximate to the knee.
Claim 8
Dependent Claim
25 words
The bone-cutting guide of claim 3 wherein the ratchet engagement means of an anchoring pin is disengaged by rotating the anchoring pin about its axis.
Claim 9
Dependent Claim
29 words
The bone-cutting guide of claim 3 wherein the cylindrical tunnel is provided within a guide tube that is mounted in the base and is reciprocally adjustable within the base.
Claim 10
Dependent Claim
33 words
The bone-cutting guide of claim 3 wherein the positioning arm is adjustably mounted to the base to allow a range of angles between the seating portion and the axis of the cylindrical tunnel.
Claim 11
Dependent Claim
18 words
The bone-cutting guide of claim 7 wherein the range of angles is from about 50° to about 80°.
Claim 12
Dependent Claim
30 words
The bone-cutting guide of claim 3 to further comprising stabilizing means extending from a distal end portion of the positioning arm for anchoring into the first region of the bone.
Claim 13
Dependent Claim
14 words
The bone-cutting guide of claim 9 wherein the stabilizing means comprises a first spike.
Claim 14
Dependent Claim
68 words
A tibial guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; two anchoring pins insertable through the base along opposite sides of the cylindrical tunnel; a positioning arm adjustably mounted to the base and having a seating portion at a distal end; and stabilizing means extending from the seating portion of the positioning arm for anchoring into the tibia within the knee joint.
Claim 15
Dependent Claim
68 words
A tibial guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; two anchoring pins insertable through the base along opposite sides of the cylindrical tunnel; a positioning arm adjustably mounted to the base and having a seating portion at a distal end; and stabilizing means extending from the seating portion of the positioning arm for anchoring into the tibia within the knee joint.
Claim 16
Dependent Claim
29 words
The tibial guide of claim 11 wherein the seating portion is shaped to define an open region through which the cutting instrument inserted through the tunnel can be operated.
Claim 17
Dependent Claim
14 words
The tibial guide of claim 11 wherein the stabilizing means comprises a first spike.
Claim 18
Dependent Claim
20 words
The tibial guide of claim 13 wherein the stabilizing means further comprises a second spike displaced from the first spike.
Claim 19
Dependent Claim
43 words
The tibial guide of claim 14 wherein the seating portion of the positioning arm is curved between the first spike and the second spike so as to define an open region through which the cutting instrument inserted through the cylindrical tunnel is operated.
Claim 20
Dependent Claim
29 words
The tibial guide of claim 11 further comprising means for adjusting an angle formed between an axis of the cylindrical tunnel and the seating portion of the positioning arm.
Claim 21
Dependent Claim
32 words
The tibial guide of claim 16 wherein the adjusting means can adjust the angle formed between the axis of the cylindrical tunnel and the seating portion between about 50° and about 80°.
Claim 22
Dependent Claim
36 words
The tibial guide of claim 16 wherein the adjusting means limits the angle formed between the axis of the cylindrical tunnel and the seating portion to no less than a predetermined angle greater than about 45°.
Claim 23
Dependent Claim
45 words
The tibial guide of claim 11 further comprising means for ratchet engagement between the base and the two anchoring pins to allow the two anchoring pins to be extended from the base but prevent the two anchoring pins from being retracted back into the base.
Claim 24
Dependent Claim
29 words
The tibial guide of claim 11 wherein the cylindrical tunnel is provided within a guide tube that is mounted in the base and is reciprocally adjustable within the base.
Claim 25
Dependent Claim
76 words
A tibial guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; two anchoring pins for attaching the base to the tibia; and a positioning arm adjustably mounted to the base and having a seating portion at a distal end for seating against the tibia within a knee joint, the seating portion being shaped to define an open region through which the cutting instrument inserted through the cylindrical tunnel can be operated.
Claim 26
Dependent Claim
76 words
A tibial guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; two anchoring pins for attaching the base to the tibia; and a positioning arm adjustably mounted to the base and having a seating portion at a distal end for seating against the tibia within a knee joint, the seating portion being shaped to define an open region through which the cutting instrument inserted through the cylindrical tunnel can be operated.
Claim 27
Dependent Claim
29 words
The tibial guide of claim 21 further comprising means for adjusting an angle formed between an axis of the cylindrical tunnel and the seating portion of the positioning arm.
Claim 28
Dependent Claim
32 words
The tibial guide of claim 22 wherein the adjusting means can adjust the angle formed between the axis of the cylindrical tunnel and the seating portion between about 50° and about 80°.
Claim 29
Dependent Claim
35 words
The tibial guide of claim 22 wherein the adjusting means limits the angle formed between the axis of the cylindrical tunnel and the seating portion to no less than a predetermined angle greater than 45°.
Claim 30
Dependent Claim
63 words
The tibial guide of claim 21 wherein the two anchoring pins are inserted through the base along opposite sides of the cylindrical tunnel and further comprising means for ratchet engagement between the base and the two anchoring pins to allow the two anchoring pins to be extended from the base but prevent the two anchoring pins from being retracted back into the base.
Claim 31
Dependent Claim
29 words
The tibial guide of claim 21 wherein the cylindrical tunnel is provided within a guide tube that is mounted in the base and is reciprocally adjustable within the base.
Claim 32
Dependent Claim
36 words
The tibial guide of claim 21 further comprising a first spike and a second spike displaced from one another on the seating portion of the positioning arm for anchoring into the tibia within the knee joint.
Claim 33
Dependent Claim
98 words
A bone-cutting guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; a positioning arm extending from the base and having a distal end for anchoring the guide against a first region of a bone; two anchoring pins insertable through the base along opposite sides of the cylindrical tunnel for contacting a second region of the bone; and means for ratchet engagement between the base and the two anchoring pins to allow the anchoring pins to be extended from the base but prevent the two anchoring pins from being retracted back into the base.
Claim 34
Dependent Claim
98 words
A bone-cutting guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; a positioning arm extending from the base and having a distal end for anchoring the guide against a first region of a bone; two anchoring pins insertable through the base along opposite sides of the cylindrical tunnel for contacting a second region of the bone; and means for ratchet engagement between the base and the two anchoring pins to allow the anchoring pins to be extended from the base but prevent the two anchoring pins from being retracted back into the base.
Claim 35
Dependent Claim
25 words
The bone-cutting guide of claim 28 wherein the ratchet engagement means of an anchoring pin is disengaged by rotating the anchoring pin about its axis.
Claim 36
Dependent Claim
29 words
The bone-cutting guide of claim 28 further comprising stabilizing means extending from the distal end portion of the positioning arm for anchoring into the first region of the bone.
Claim 37
Dependent Claim
14 words
The bone-cutting guide of claim 30 wherein the stabilizing means comprises a first spike.
Claim 38
Dependent Claim
29 words
The bone-cutting guide of claim 28 wherein the cylindrical tunnel is provided within a guide tube that is mounted in the base and is reciprocally adjustable within the base.
Claim 39
Dependent Claim
18 words
The bone-cutting guide of claim 28 wherein the positioning arm includes a seating portion at the distal end.
Claim 40
Dependent Claim
31 words
The bone-cutting guide of claim 33 wherein the seating portion is being shaped to define an open region through which the cutting instrument inserted through the cylindrical tunnel can be operated.
Claim 41
Dependent Claim
113 words
A bone-cutting guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; a positioning arm having a seating portion at a distal end for resting against a first region of a bone, the positioning arm being adjustably mounted to the base to allow a range of angles between the seating portion and the axis of the cylindrical tunnel; and two anchoring pins insertable through the base along opposite sides of the cylindrical tunnel for contacting a second region of the bone, such that the base is stably oriented with respect to the bone by contact of extensions therewith in at least three locations, counting that of the positioning arm.
Claim 42
Dependent Claim
113 words
A bone-cutting guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; a positioning arm having a seating portion at a distal end for resting against a first region of a bone, the positioning arm being adjustably mounted to the base to allow a range of angles between the seating portion and the axis of the cylindrical tunnel; and two anchoring pins insertable through the base along opposite sides of the cylindrical tunnel for contacting a second region of the bone, such that the base is stably oriented with respect to the bone by contact of extensions therewith in at least three locations, counting that of the positioning arm.
Claim 43
Dependent Claim
18 words
The bone-cutting guide of claim 35 wherein the range of angles is from about 50° to about 80°.
Claim 44
Dependent Claim
31 words
The bone-cutting guide of claim 35 wherein the seating portion is being shaped to define an open region through which the cutting instrument inserted through the cylindrical tunnel can be operated.
Claim 45
Dependent Claim
44 words
The bone-cutting guide of claim 35 further comprising means for ratchet engagement between the base and the two anchoring pins to allow the anchoring pins to be extended from the base but prevent the two anchoring pins from being retracted back into the base.
Claim 46
Dependent Claim
25 words
The bone-cutting guide of claim 38 wherein the ratchet engagement means of an anchoring pin is disengaged by rotating the anchoring pin about its axis.
Claim 47
Dependent Claim
28 words
The bone-cutting guide of claim 35 further comprising stabilizing means extending from the seating portion of the positioning arm for anchoring into the first region of the bone.
Claim 48
Dependent Claim
14 words
The bone-cutting guide of claim 40 wherein the stabilizing means comprises a first spike.
Claim 49
Dependent Claim
29 words
The bone-cutting guide of claim 35 wherein the cylindrical tunnel is provided within a guide tube that is mounted in the base and is reciprocally adjustable within the base.
Claim 50
Dependent Claim
130 words
A bone-cutting guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; a positioning arm having a seating portion at a distal end for seating against a first region of a bone, the positioning arm being adjustably mounted to the base to allow a range of angles between the seating portion and the axis of the cylindrical tunnel, the seating portion being shaped to define an open region through which the cutting instrument inserted through the cylindrical tunnel can be operated; and an anchoring arrangement attached to the base for contact with a second region of the bone, such that the base is stably oriented with respect to the bone by contact of extensions therewith in at least three locations, counting that of the positioning arm.
Claim 51
Dependent Claim
130 words
A bone-cutting guide comprising: a base including a cylindrical tunnel for guiding a cutting instrument therethrough; a positioning arm having a seating portion at a distal end for seating against a first region of a bone, the positioning arm being adjustably mounted to the base to allow a range of angles between the seating portion and the axis of the cylindrical tunnel, the seating portion being shaped to define an open region through which the cutting instrument inserted through the cylindrical tunnel can be operated; and an anchoring arrangement attached to the base for contact with a second region of the bone, such that the base is stably oriented with respect to the bone by contact of extensions therewith in at least three locations, counting that of the positioning arm.
Claim 52
Dependent Claim
24 words
The bone-cutting guide according to claim 43, wherein the anchoring arrangement includes an adjustably extendible anchoring pin insertable into the bone through the base.
Claim 53
Dependent Claim
18 words
The bone-cutting guide of claim 43 wherein the range of angles is from about 50° to about 80°.
Claim 54
Dependent Claim
26 words
The bone-cutting guide according to claim 43, wherein the anchoring arrangement comprises two anchoring pins insertable through the base along opposite sides of the cylindrical tunnel.
Claim 55
Dependent Claim
29 words
The bone-cutting guide of claim 43 further comprising stabilizing means extending from a distal end portion of the positioning arm for anchoring into the first region of the bone.
Claim 56
Dependent Claim
29 words
The bone-cutting guide of claim 43 wherein the cylindrical tunnel is provided within a guide tube that is mounted in the base and is reciprocally adjustable within the base.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-10-27 | 2001-04-28 | 2001-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-27 | 2005-04-28 | 2005-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-27 | 2009-04-28 | 2009-10-28 | $7700.00 | Window Closed / Lapsed |