US5522817A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorbable surgical fastener with bone penetrating elements
Assignee: United States Surgical Corp
•
Filing: 1994-02-24
•
Granted: 1996-06-04
•
Expires: 2014-02-24
Abstract
Abstract A self-inserting absorbable orthopedic fixation device having a bioabsorbable fastening body portion for fastening body tissue, and having bone penetrating elements such as hard, pointed tips for penetrating bone or hard tissue fixed thereto. The pointed tips may be fabricated from metals or ceramics. The fixation device may be in the form of staples, pins, screws, and the like.
Inventors
- 👤 Thomas W. Sander
- 👤 Jeffrey S. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:42
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/064; A61B17/0642; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/86; A61B17/866; A61B17/8685; A61B2017/00004; A61B2017/0647; A61B2017/0648
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
151 words
A surgical bone pin comprising bioabsorbable shaft having a distally facing end surface, and at least one bone penetrating element for drilling into bone and having a pointed distal end and a proximally facing proximal end surface in contact with the distally facing end surface of the bioabsorbable shaft, said proximally facing proximal end surface and said distally facing end surface having the same outer diameters, said shaft being uniform in cross section throughout its length, and said bone penetrating element being of sufficient length to be gripped by a drilling means and inserted into bone wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, wherein said projecting member has a non-circular cross-section.
Claim 2
Dependent Claim
151 words
A surgical bone pin comprising bioabsorbable shaft having a distally facing end surface, and at least one bone penetrating element for drilling into bone and having a pointed distal end and a proximally facing proximal end surface in contact with the distally facing end surface of the bioabsorbable shaft, said proximally facing proximal end surface and said distally facing end surface having the same outer diameters, said shaft being uniform in cross section throughout its length, and said bone penetrating element being of sufficient length to be gripped by a drilling means and inserted into bone wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, wherein said projecting member has a non-circular cross-section.
Claim 3
Dependent Claim
20 words
The surgical fastener of claim 1 wherein said bone penetrating element is from about 3 to 8 inches in length.
Claim 4
Dependent Claim
17 words
The surgical fastener of claim 1 wherein said bone penetrating element is fabricated from a ceramic material.
Claim 5
Dependent Claim
24 words
The surgical fastener of claim 3 wherein the ceramic material comprises a material selected from the group consisting of zirconia, alumina, and carbon/carbon composites.
Claim 6
Dependent Claim
16 words
The surgical fastener of claim 1 wherein said bone penetrating element is fabricated from a metal.
Claim 7
Dependent Claim
24 words
The surgical fastener of claim 5 wherein said metal is selected from the group consisting of stainless steel, titanium, titanium alloy, and cobalt-chromium-molybdenum alloy.
Claim 8
Dependent Claim
36 words
The surgical fastener of claim 1 wherein said bioabsorbable shaft is fabricated from a bioabsorbable polymer selected from the group consisting of poly(p-dioxanone), polylactide, polyglycolide, polycaprolactone, poly(orthoesters), and trimethylene carbonate polymer, and copolymers and/or mixtures thereof.
Claim 9
Dependent Claim
25 words
The surgical bone pin of claim 1 wherein said projecting member of said connecting means and said corresponding recess of said connecting means are cross-shaped.
Claim 10
Dependent Claim
27 words
The surgical bone pin of claim 1 wherein said projecting member of said connecting means and said corresponding recess of said connecting means are pyramidal in shape.
Claim 11
Dependent Claim
199 words
A surgical bone pin comprising a bioabsorbable shaft having distally and proximally facing end surfaces, a first bone penetrating element for drilling into bone and having a proximally facing proximal end surface in contact with said distally facing end surface of said bioabsorbable shaft, said proximally facing proximal end surface and said distally facing end surface having the same outer diameter, and a second bone penetrating element for drilling into bone and having a distally facing distal end surface in contact with the proximally facing end surface of said bioabsorbable shaft, said distally facing distal end surface and said proximally facing end surface having the same outer diameter, said shaft having a rectilinear longitudinal axis, said bone penetrating elements being aligned with said longitudinal axis and said bone penetrating elements being of sufficient length to be gripped by drilling means and inserted into bone, wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, wherein said projecting member has a non-circular cross-section.
Claim 12
Dependent Claim
199 words
A surgical bone pin comprising a bioabsorbable shaft having distally and proximally facing end surfaces, a first bone penetrating element for drilling into bone and having a proximally facing proximal end surface in contact with said distally facing end surface of said bioabsorbable shaft, said proximally facing proximal end surface and said distally facing end surface having the same outer diameter, and a second bone penetrating element for drilling into bone and having a distally facing distal end surface in contact with the proximally facing end surface of said bioabsorbable shaft, said distally facing distal end surface and said proximally facing end surface having the same outer diameter, said shaft having a rectilinear longitudinal axis, said bone penetrating elements being aligned with said longitudinal axis and said bone penetrating elements being of sufficient length to be gripped by drilling means and inserted into bone, wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, wherein said projecting member has a non-circular cross-section.
Claim 13
Dependent Claim
20 words
The surgical fastener of claim 10 wherein said bone penetrating elements are from about 3 to 5 inches in length.
Claim 14
Dependent Claim
16 words
The surgical fastener of claim 10 wherein the bioabsorbable shaft is fabricated from a polymeric material.
Claim 15
Dependent Claim
25 words
The surgical fastener of claim 12 wherein said polymeric material is selected from the group consisting of poly (p-dioxanone), polylactide, polyglycolide, polycaprolactone, and poly (orthoesters).
Claim 16
Dependent Claim
17 words
The surgical fastener of claim 10 wherein said bone penetrating elements are fabricated from a metallic material.
Claim 17
Dependent Claim
25 words
The surgical fastener of claim 14 wherein said metallic material is selected from the group consisting of stainless steel, titanium, titanium alloys, and cobalt-chromium-molybdenum alloy.
Claim 18
Dependent Claim
17 words
The surgical fastener of claim 10 wherein said bone penetrating elements are fabricated from a ceramic material.
Claim 19
Dependent Claim
22 words
The surgical fastener of claim 16 wherein said ceramic material is selected from the group consisting of zirconia, alumina, and carbon/carbon composites.
Claim 20
Dependent Claim
135 words
A surgical bone pin comprising a bioabsorbable shaft having a distally facing end surface, and at least one non-biodegradable bone penetrating element having a pointed distal end and a proximally facing proximal end surface in contact with the distally facing end surface of the bioabsorbable shaft, said proximally facing proximal end surface of the bone penetrating element and distally facing end surface of the shaft having the same outer diameters, said bioabsorbable shaft having a uniform diameter throughout its length, wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, wherein said projecting member has a non-circular cross-section.
Claim 21
Dependent Claim
135 words
A surgical bone pin comprising a bioabsorbable shaft having a distally facing end surface, and at least one non-biodegradable bone penetrating element having a pointed distal end and a proximally facing proximal end surface in contact with the distally facing end surface of the bioabsorbable shaft, said proximally facing proximal end surface of the bone penetrating element and distally facing end surface of the shaft having the same outer diameters, said bioabsorbable shaft having a uniform diameter throughout its length, wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, wherein said projecting member has a non-circular cross-section.
Claim 22
Dependent Claim
18 words
The surgical fastener of claim 18 wherein said bone penetrating element has a hardness sufficient for penetrating bone.
Claim 23
Dependent Claim
14 words
The surgical fastener of claim 19 wherein said bone penetrating element is a tip.
Claim 24
Dependent Claim
14 words
The surgical fastener of claim 20 wherein said tip comprises means for cutting bone.
Claim 25
Dependent Claim
17 words
The surgical fastener of claim 21 wherein said means for cutting bone is a relatively sharp point.
Claim 26
Dependent Claim
19 words
The surgical fastener of claim 21 wherein said means for cutting bone is at least one relatively sharp edge.
Claim 27
Dependent Claim
18 words
The surgical fastener of claim 18 wherein the bioabsorbable fastening body portion is fabricated from a polymeric material.
Claim 28
Dependent Claim
25 words
The surgical fastener of claim 24 wherein said polymeric material is selected from the group consisting of poly (p-dioxanone), polylactide, polyglycolide, polycaprolactone, and poly (orthoesters).
Claim 29
Dependent Claim
17 words
The surgical fastener of claim 18 wherein said bone penetrating element is fabricated from a metallic material.
Claim 30
Dependent Claim
26 words
The surgical fastener of claim 26 wherein said metallic material is selected from the group consisting of stainless steel, titanium, titanium alloys, and cobalt chromium-molybdenum alloy.
Claim 31
Dependent Claim
17 words
The surgical fastener of claim 18 wherein said bone penetrating element is fabricated from a ceramic material.
Claim 32
Dependent Claim
22 words
The surgical fastener of claim 28 wherein said ceramic material is selected from the group consisting of zirconia, alumina, and carbon/carbon composites.
Claim 33
Dependent Claim
19 words
The surgical fastener of claim 18 wherein said bone penetrating element is fixed to the end of said shaft.
Claim 34
Dependent Claim
23 words
The surgical fastener of claim 18 wherein said projecting member comprises a substantially cross-shaped member projecting perpendicularly from the end of said shaft.
Claim 35
Dependent Claim
35 words
The surgical fastener of claim 18 wherein said projecting member comprises a base portion projecting perpendicularly from the end surface of said bone penetrating element, and a substantially pyramidal portion projecting from said base portion.
Claim 36
Dependent Claim
16 words
The surgical fastener of claim 18 wherein the bioabsorbable fastening body portion contains a reinforcing material.
Claim 37
Dependent Claim
18 words
The surgical fastener of claim 33 wherein the reinforcing material is at least one type of reinforcing fiber.
Claim 38
Dependent Claim
21 words
The surgical fastener of claim 33 wherein the reinforcing material is chosen from the group consisting of polymeric resins and ceramics.
Claim 39
Dependent Claim
147 words
A surgical fastener comprising; a bioabsorbable shaft having a single longitudinal axis, a distally facing end surface, and a uniform diameter throughout its length; and at least one non-biodegradable bone penetrating dement aligned with said longitudinal axis of said shaft, said bone penetrating dement having a pointed distal end and a proximaly facing proximal end surface in contact with the distally facing end surface of said shaft, said proximaly facing proximal end surface of said bone penetrating element and said distally facing end surface of said shaft having the same outer diameter, wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximaly facing end surfaces, wherein said projecting member has a non-circular cross-section.
Claim 40
Dependent Claim
147 words
A surgical fastener comprising; a bioabsorbable shaft having a single longitudinal axis, a distally facing end surface, and a uniform diameter throughout its length; and at least one non-biodegradable bone penetrating dement aligned with said longitudinal axis of said shaft, said bone penetrating dement having a pointed distal end and a proximaly facing proximal end surface in contact with the distally facing end surface of said shaft, said proximaly facing proximal end surface of said bone penetrating element and said distally facing end surface of said shaft having the same outer diameter, wherein said shaft and said bone penetrating element are non-rotatably joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximaly facing end surfaces, wherein said projecting member has a non-circular cross-section.
Claim 41
Dependent Claim
170 words
A surgical bone pin comprising a bioabsorbable shaft having a distally facing end surface, and at least one bone penetrating element for drilling into bone and having a pointed distal end and a proximally facing proximal end surface in contact with the distally facing end surface of the bioabsorbable shaft, said proximally facing proximal end surface and said distally facing end surface having the same outer diameters, said shaft being uniform in cross section throughout its length, and said bone penetrating element being of sufficient length to be gripped by a drilling means and inserted into bone, wherein said shaft and said bone penetrating element are joined by a permanent bond, and wherein said shaft and said bone penetrating element are non-rotatingly joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, said projecting member and said recess having a non-circular cross section.
Claim 42
Dependent Claim
170 words
A surgical bone pin comprising a bioabsorbable shaft having a distally facing end surface, and at least one bone penetrating element for drilling into bone and having a pointed distal end and a proximally facing proximal end surface in contact with the distally facing end surface of the bioabsorbable shaft, said proximally facing proximal end surface and said distally facing end surface having the same outer diameters, said shaft being uniform in cross section throughout its length, and said bone penetrating element being of sufficient length to be gripped by a drilling means and inserted into bone, wherein said shaft and said bone penetrating element are joined by a permanent bond, and wherein said shaft and said bone penetrating element are non-rotatingly joined by a connecting means which comprises a member projecting from one of said contacting distally and proximally facing end surfaces into a corresponding recess in the other of said contacting distally and proximally facing end surfaces, said projecting member and said recess having a non-circular cross section.
Claim 43
Dependent Claim
27 words
The surgical bone pin of claim 37 wherein said permanent bond is achieved by a method selected from the group consisting of adhesive bonding, welding, and fusing.
References Cited (Backward Citations)
US2121193A
Cited
US2302559A
Cited
US2532296A
Cited
US2772676A
Cited
US3209754A
Cited
US3739773A
Cited
US3494243A
Cited
US3605123A
Cited
US3623164A
Cited
US3877080A
Cited
US3915162A
Cited
US3971134A
Cited
US3986212A
Cited
US4145764A
Cited
US4060089A
Cited
US4052988A
Cited
US4164794A
Cited
DE2721075A1
Cited
US4263903A
Cited
US4599085A
Cited
US4463753A
Cited
US4278091A
Cited
US4428376A
Cited
US4414966A
Cited
US4454875A
Cited
US4539981A
Cited
US4570623A
Cited
EP0127994A1
Cited
US4628923A
Cited
US4612923A
Cited
US4655222A
Cited
US4592346A
Cited
US4671280A
Cited
US4711232A
Cited
WO1987001595A1
Cited
US4863444A
Cited
EP0273872A1
Cited
US4756307A
Cited
US4719917A
Cited
EP0283217A1
Cited
US4838264A
Cited
US4858603A
Cited
EP0346033A1
Cited
US4944742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-06-04 | 1999-12-04 | 2000-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-04 | 2003-12-04 | 2004-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-04 | 2007-12-04 | 2008-06-04 | $7700.00 | Window Closed / Lapsed |