US5562704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical implant
Assignee: Bionx Implants Oy
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Filing: 1993-01-18
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Granted: 1996-10-08
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Expires: 2013-01-18
Abstract
Abstract The present invention relates to a surgical implant made of a polymer or a polymeric compound which is substantially absorbable in tissue and contains reinforcing structures made of a polymer or a polymeric compound. The implant has a body with a first end formed as a stem and a second end formed as a head. The implant also contains arresting members for arresting the implant in a position in a direction opposite to the direction of installation. The stem protrudes from the outer surface of the body and substantially formed of at least one wing extending in the longitudinal direction of the body. The wing is connected to the body at one edge. The body contains a plurality of cuts adjacent the head which define the arresting members and are formed in a direction substantially parallel to the body.
Inventors
- 👤 Markku Tamminmaki
- 👤 Gert Kristensen
- 👤 Peter Albrecht-Olsen
- 👤 Pertti Tormaala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:58
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/064; A61L; A61L31/00; A61L31/12; A61L31/125; A61L31/129; A61B2017/0646; A61B2017/0647
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
156 words
A surgical implant, made of a polymer or a polymeric compound which is substantially absorbable in tissue and contains reinforcing structures made of a polymer or a polymeric compound, said implant comprising: a body having a first end forming a stem and a second end forming a head, the stem protruding from the outer surface of the body and being substantially formed of at least one wing extending in the longitudinal direction of the body, and at its one edge connected to the body, the thickness of the wing in the direction transverse to the longitudinal direction of the body not exceeding the maximum thickness dimension of the body, and arresting means for arresting the implant in a position in a direction opposite to the direction of installation, said arresting means being defined by a plurality of cuts in the body adjacent the head, said cuts being formed in a direction substantially parallel to the body.
Claim 2
Dependent Claim
156 words
A surgical implant, made of a polymer or a polymeric compound which is substantially absorbable in tissue and contains reinforcing structures made of a polymer or a polymeric compound, said implant comprising: a body having a first end forming a stem and a second end forming a head, the stem protruding from the outer surface of the body and being substantially formed of at least one wing extending in the longitudinal direction of the body, and at its one edge connected to the body, the thickness of the wing in the direction transverse to the longitudinal direction of the body not exceeding the maximum thickness dimension of the body, and arresting means for arresting the implant in a position in a direction opposite to the direction of installation, said arresting means being defined by a plurality of cuts in the body adjacent the head, said cuts being formed in a direction substantially parallel to the body.
Claim 3
Dependent Claim
21 words
A surgical implant according to claim 1, comprising at least two wings protruding from the body in at least two directions.
Claim 4
Dependent Claim
18 words
A surgical implant according to claim 1, comprising two wings which protrude in opposite directions from the body.
Claim 5
Dependent Claim
66 words
A surgical implant according to claim 1, wherein said at least one wing has a polygonal form, and wherein the back edge surface of said wing is connected to the back surface of the body and extends in the same plane as the back surface of the body and wherein the front edge of the wing is substantially transverse to the longitudinal direction of the body.
Claim 6
Dependent Claim
25 words
A surgical implant according to claim 1, wherein the cross-sectional form of the body has substantially even dimensions in the longitudinal direction of the body.
Claim 7
Dependent Claim
30 words
A surgical implant according to claim 1, wherein the body has a circular cross-section, and wherein the thickness of the wing is smaller than the diameter of said circular cross-section.
Claim 8
Dependent Claim
18 words
A surgical implant according to claim 6, wherein said body has substantially uniform thickness in its longitudinal direction.
Claim 9
Dependent Claim
47 words
A surgical implant according to claim 7, wherein said cuts in the body defining said arresting means form a plurality of barbs connected with the body at one end, and having their heads directed towards the stem of the implant, whereby said barbs form a scutellate structure.
Claim 10
Dependent Claim
23 words
A surgical implant according to claim 8, wherein said plurality of barbs form at least one row along the periphery of the body.
Claim 11
Dependent Claim
19 words
A surgical implant according to claim 8, wherein said plurality of barbs are positioned at random adjacent said head.
Claim 12
Dependent Claim
18 words
A surgical implant according to claim 1, wherein said at least one wing has a substantially even thickness.
Claim 13
Dependent Claim
23 words
A surgical implant according to claim 1, wherein said arresting means are formed along the whole perimeter of the body adjacent said head.
Claim 14
Dependent Claim
40 words
A surgical implant according to claim 1, wherein cuts forming said arresting means comprise a first substantially curved section, at the head of said arresting means, and a second section substantially parallel to the longitudinal direction of the implant body.
Claim 15
Dependent Claim
28 words
A surgical implant according to claim 1, wherein at least some cuts of said arresting means are substantially straight cuts diagonally directed towards the inside of the body.
Claim 16
Dependent Claim
135 words
A surgical implant, made of a polymer or a polymeric compound which is substantially absorbable in tissue and contains reinforcing structures made of a polymer or a polymeric compound, said surgical implant comprising: a body having a first end forming a stem and a second end forming a head, said stem being formed of at least one wing protruding from the outer surface of the body and at its one edge connected to the body, and arresting means for arresting the implant in a position in a direction opposite to the direction of installation, said arresting means being defined by a plurality of members adjacent the head, said plurality of members being formed in a direction substantially parallel to the body and being spaced apart from each other along the entire periphery of the body.
Claim 17
Dependent Claim
135 words
A surgical implant, made of a polymer or a polymeric compound which is substantially absorbable in tissue and contains reinforcing structures made of a polymer or a polymeric compound, said surgical implant comprising: a body having a first end forming a stem and a second end forming a head, said stem being formed of at least one wing protruding from the outer surface of the body and at its one edge connected to the body, and arresting means for arresting the implant in a position in a direction opposite to the direction of installation, said arresting means being defined by a plurality of members adjacent the head, said plurality of members being formed in a direction substantially parallel to the body and being spaced apart from each other along the entire periphery of the body.
Claim 18
Dependent Claim
21 words
A surgical implant according to claim 15, wherein said members form at least one row along the periphery of the body.
Claim 19
Dependent Claim
170 words
A surgical implant, made of a polymer or a polymeric compound which is substantially absorbable in tissue and contains reinforcing structures made of a polymer or a polymeric compound, said surgical implant comprising: a body having a first end forming a stem and a second end forming a head, the stem protruding from the outer surface of the body and being substantially formed of at least one wing extending in the longitudinal direction of the body, and at its one edge connected to the body, and arresting means for arresting the implant in a position in a direction opposite to the direction of installation, said arresting means being defined by a plurality of cuts in the body adjacent the head, said cuts being formed in a direction substantially parallel to the implant body and having one end connected with the implant body and an opposite free end directed towards the stem, said plurality of cuts being spaced apart along the entire periphery of the body and forming a scutellate structure.
Claim 20
Dependent Claim
170 words
A surgical implant, made of a polymer or a polymeric compound which is substantially absorbable in tissue and contains reinforcing structures made of a polymer or a polymeric compound, said surgical implant comprising: a body having a first end forming a stem and a second end forming a head, the stem protruding from the outer surface of the body and being substantially formed of at least one wing extending in the longitudinal direction of the body, and at its one edge connected to the body, and arresting means for arresting the implant in a position in a direction opposite to the direction of installation, said arresting means being defined by a plurality of cuts in the body adjacent the head, said cuts being formed in a direction substantially parallel to the implant body and having one end connected with the implant body and an opposite free end directed towards the stem, said plurality of cuts being spaced apart along the entire periphery of the body and forming a scutellate structure.
Claim 21
Dependent Claim
21 words
A surgical implant according to claim 17, wherein said cuts form at least one row along the periphery of the body.
Claim 22
Dependent Claim
19 words
A surgical implant according to claim 17, wherein said cuts are randomly spaced along said periphery of the body.
Claim 23
Dependent Claim
34 words
A surgical implant according to claim 17, wherein said cuts at one end are integrally connected with said body and extend away from the surface of said body at the opposite, free end thereof.
References Cited (Backward Citations)
US4873976A
Cited
US5425747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-10-08 | 2000-04-08 | 2000-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-08 | 2004-04-08 | 2004-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-08 | 2008-04-08 | 2008-10-08 | $7700.00 | Window Closed / Lapsed |