GB2405342A - Bone plate - Google Patents
Bone plate Download PDFInfo
- Publication number
- GB2405342A GB2405342A GB0320208A GB0320208A GB2405342A GB 2405342 A GB2405342 A GB 2405342A GB 0320208 A GB0320208 A GB 0320208A GB 0320208 A GB0320208 A GB 0320208A GB 2405342 A GB2405342 A GB 2405342A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- fibre reinforced
- bone
- bone fixation
- fixation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
- A61L31/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/12—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L31/125—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
- A61L31/126—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix containing carbon fillers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Neurology (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Surgical Instruments (AREA)
Abstract
This invention relates to a fibre reinforced bone fixation plate having a fixation zone for receiving a bone fixing such as a bone screw or nail. The bone plate may comprise a main body 2 in which are fixed a plurality of inserts 4. Alternatively, it may comprise a laminated structure with one or more layers of fibre reinforced material 10 laminated to layers of unreinforced material 12, the fixation zone being formed in the unreinforced material 12, 4.
Description
BONE PLATE
This invention relates to bone plates and particularly, but not exclusively relates to angle stable composite bone plates.
BACKGROUND
In the early days of internal fixation, it was believed that fractures should be rigidly immobilized. However, it soon became recognised that some degree of mobility in the fracture is not only acceptable, but desirable to promote bone healing. One means of achieving this is the use of fibre reinforced polymer matrix composites, most notably for bone plates. These have been used for fracture fixation for more than 30 years. Early models were made from carbon fibre reinforced epoxy. Other matrix materials that have been proposed include thermoplastics such as polysulphone. More recently, polyetheretherketone (PEEK) has emerged as the material of choice for the matrix, since this has excellent hydrolytic stability.
Another more recent shift in opinion concerns contact of bone plates with the underlying bone. With conventional plating, the screws generally have a spherical undersurface to the head, which seats in a spherical recess in the plate. This allows the screws to be angled relative to the plate, so that the surgeon can place the screws precisely where they are needed. In addition, the recess in the plate can be shaped to give compression at the fracture site.
In order to give adequate stability to the fracture, the plate must be screwed down firmly onto the surface of the bone. It has been observed that this can impair the viability of the bone under the plate. An alternative approach to overcome this problem has emerged in recent years. This new concept is called Angle Stable Fixation. Angle Stable devices can be described as internal external-fixators. The devices have limited contact with the bone, the screws that fit them are either mono or bicortical and lock into the plate as well as the bone. Angle Stable fixation is rapidly becoming established as a technique that is likely to replace the conventional screw and plate systems in the treatment of metaphyseal fractures. It is the latest evolution in the fixation of long bone fractures.
In one conventional angle stable composite bone plate system, the plate is provided with threaded holes which are adapted to receive bone screws which have threads on the undersurface of the head. These threads on the screw engage with the threads in a hole. This has the major disadvantage that the screw orientation is fixed, whereas the fracture configuration should always determine screw placement.
Another conventional system develops angular stability by exploiting the friction created by fixing self-tapping screws of harder titanium (type 4) in plates made from softer titanium (type 0/type 1), thus creating a permanently stable bond (cold weld) that also makes various screw angles and positions possible.
It is also known to provide a titanium plate which has PEEK collars which lock into the holes contained with the plate. The screws have a conical head with a threaded undersurface, which self-taps into the PEEK collar. This allows angulation of screws within the plate as dictated by the fracture configuration.
STATEMENT OF INVENTION
According to the present invention there is provided a fibre reinforced bone fixation plate, having a fixation zone for receiving a bone fixing such as a bone screw or nail, the fixation zone comprising a portion of the plate without fibre reinforcement.
Preferably, a hole is formed through the plate in the fixation zone. The hole may be threaded.
Preferably, the plate is reinforced with carbon fibre.
Preferably, the fixation zone is formed from unreinforced polyetheretherketone (PEEK) Preferably, the fixation zone is formed by inserts in the plate. There are several ways in which these inserts can be secured to the plate. For example, they may be screwed in, riveted, fixed by ultrasonic welding, friction welded, shrink fitted, interference fitted or snap fitted. In a preferred embodiment, the inserts are fixed by ultrasonic welding.
Preferably, the insert is cylindrical or conical. For example, the insert may comprise a tapered plug, which is particularly suitable for fixing by ultrasonic welding, as the weld interface can be held in compression.
Preferably, the inset is formed from a material which is less hard than the plate. For example, it may be formed from a material in which a thread may easily be formed by a self tapping screw.
The plates are preferably made from a carbon fibre reinforced PEEK composite material. Alternative polymer matrix materials are possible, as long as they are biocompatible and biostable enough for use in this application.
The reinforcement is preferably made from carbon, either in the form of long (continuous) fibres or chopped fibres. However, alternative fibres are possible, such as molecularly oriented aramid or polyolefin.
The plate is preferably formed with the reinforcing fibres around the holes oriented tangential to the hole perimeter, since cutting a hole through a plate made from longitudinal continuous fibres would seriously weaken it. One means of forming such a plate would be composite flow moulding, such as is described in patent application US 2003/0057590 A1.
To make composite plates suitable for angle stable fixation, it would be possible to make a composite plate, with pre-tapped screw holes. However, this has the significant disadvantage that the screw holes dictate the orientation of the screws.
One means of overcoming this problem would be to manufacture plates with an untapped hole, and using them with self tapping screws. However, tapping a screw into a fibre reinforced composite material is very difficult. This difficulty could be overcome by making the plate from an unreinforced polymer, such as PEEK, into which it would be relatively easy to tap a screw. However, unreinforced polymers do not have adequate strength and stiffness to be used for bone plates other than in very low stress applications.
In a preferred embodiment, the invention overcomes these difficulties, by making the plate predominantly out of fibre reinforced composite, but surrounding the bore of the screw holes with unreinforced polymer. The plate will therefore possess adequate strength and stiffness, as a result of the fibre reinforcement, but it will be relatively easy to insert a self tapping screw into the hole, as a result of the unreinforced polymer fixation zone.
The plugs can be drilled with a hole to accept the screw after being secured to the plate. Alternatively, the holes can be drilled or formed prior to fitting into the plate. The hole in the plate could be cylindrical, conical, or any other shape to mate with a plug.
Similarly, the hole in the plug could be any shape to mate with the thread on the undersurface of the screw head, and allow some angulation of the screw.
An alternative method of construction would be to lay up the fibres in the mould in such a way as to leave an unreinforced layer adjacent the holes. This could be achieved, for instance, by putting sleeves or plugs of unreinforced polymer in the mould.
Another alternative method of construction would be to make the plate in the form of a laminate of fibre reinforced polymer, and unreinforced polymer. The holes in the fibre reinforced layer(s) are larger than the holes in the unreinforced polymer, hence the threads under the head of the screw will engage primarily with unreinforced polymer.
BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of the present invention, and to show more clearly how it may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which: Figure 1 shows a first embodiment of bone plate incorporating unreinforced inserts (or plugs); Figure 2 shows the construction of a second embodiment of bone plate formed from a layer of reinforced composite material laminated to a layer of unreinforced composite material; and Figure 3 is a cross-section through a portion of the bone plate of Figure 2 when assembled.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
Figure 1 shows a first embodiment of bone plate comprising a main body 2 and a plurality of inserts 4. The main body 2 is formed from carbon fibre reinforced PEEK and the inserts 4 are formed from unreinforced PEEK. The main body 2 is formed with a plurality of openings 6, which may for example be moulded, punched or drilled into the main body 2. Each insert 4 is cylindrical and is fitted into a respective opening 6.
The inserts 4 may be screwed into the openings 6 or may be riveted, fixed by ultrasonic welding, friction welded, shrink fitted, inference fitted or snap fitted. In a preferred embodiment, the inserts 4 are fixed by ultrasonic welding. Once the bone plate has been assembled, it can be fixed to a bone (not shown) by bone screws (not shown) inserted through bores 8 formed in the inserts 4. The bores 8 may be threaded or may be made under-size, so that the bone screws self tap into the inserts 4.
Referring to Figures 2 and 3, in an alternative embodiment, the bone plate is formed from layers of material laminated together. In the illustrated embodiment, the bone plate is formed from a first reinforced layer 10 made from carbon fibre reinforced PEEK composite material, and a second unreinforced layer 12 formed from unreinforced PEEK. The second unreinforced layer 12 is provided with a plurality of bores 14 which are adapted to receive bone screws (not shown). The bores 14 may be threaded or may be undersized, so that the bone screws self tap into the second unreinforced layer 12. The first reinforced layer 10 is provided with a plurality of larger openings 16 which are aligned with the bores 14 and provide access, so that the bone screws can pass through the first reinforced layer 10 into the bores 14.
The first reinforced layer 10 is laminated to the second unreinforced layer 12, as best shown in Figure 3. As mentioned above, a bone screw can pass through the opening 16 to engage the smaller diameter bore 14. The opening 16 may be countersunk, so that the bone screw is flush with an upper surface 18 of the first reinforced layer 12 of the bone plate.
Claims (13)
1. A fibre reinforced bone fixation plate, having a fixation zone for receiving a bone fixing such as a bone screw of nail, the fixation zone comprising a portion of the plate without fibre reinforcement.
2. A fibre reinforced bone fixation plate as claimed in claim 1, which is formed from polyetheretherketone (PEEK).
3. A fibre reinforced bone fixation plate as claimed in claim 1, in which the fixation zone comprises a portion of the plate without fibre reinforcement.
3. A fibre reinforced bone fixation plate as claimed in claim 1 or 2, in which a hole is formed through the plate in the fixation zone.
4. A fibre reinforced bone fixation plate as claimed in claim 3, in which the hole is threaded.
5. A fibre reinforced bone fixation plate as claimed in any one of the preceding claims, in which the plate is reinforced with carbon fibre.
6. A fibre reinforced bone fixation plate as claimed in any one of the preceding claims, in which the fixation zone is formed from unreinforced polyetheretherketone (PEEK).
7. A fibre reinforced bone fixation plate as claimed in any one of the preceding claims, which is laminated.
8. A fibre reinforced bone fixation plate as claimed in claim 7, which comprises a layer of fibre reinforced material laminated to a layer of unreinforced material, the fixation zone being formed in the unreinforced material.
9. A fibre reinforced bone fixation plate as claimed in claim 8, in which the fixation zone is bounded by an opening formed through the reinforced material.
10. A fibre reinforced bone fixation plate as claimed in any one of the preceding claims, in which the fixation zone is formed by an insert fixed into the plate.
11. A fibre reinforced bone fixation plate as claimed in claim 10, in which the insert is fixed to the plate by ultrasonic welding.
12. A fibre reinforced bone fixation plate as claimed in any one of the preceding claims, in which the insert is cylindrical.
13. A fibre reinforced bone fixation plate substantially as described herein with reference to and as shown in Figure 1 or Figures 2 and 3 of the accompanying drawings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0320208A GB2405342A (en) | 2003-08-28 | 2003-08-28 | Bone plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0320208A GB2405342A (en) | 2003-08-28 | 2003-08-28 | Bone plate |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0320208D0 GB0320208D0 (en) | 2003-10-01 |
GB2405342A true GB2405342A (en) | 2005-03-02 |
Family
ID=28686515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0320208A Withdrawn GB2405342A (en) | 2003-08-28 | 2003-08-28 | Bone plate |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2405342A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2435648A (en) * | 2006-03-01 | 2007-09-05 | Invibio Ltd | A polymeric material assembly |
WO2007138270A3 (en) * | 2006-05-26 | 2008-04-10 | Mark Richard Cunliffe | A bone fixation device |
WO2008134264A1 (en) * | 2007-04-27 | 2008-11-06 | Synthes Usa, Llc | Implant devices constructed with metallic and polymeric components |
EP2033670A1 (en) | 2007-07-17 | 2009-03-11 | BrainLAB AG | Attachment device for medical purposes, in particular for attaching a reference geometry for navigation-assisted operations to a body, in particular to a bone |
WO2010115458A1 (en) | 2009-04-08 | 2010-10-14 | Stryker Trauma Gmbh | Hybrid bone plate |
ITRM20100496A1 (en) * | 2010-09-27 | 2010-12-27 | Alessia Zaccardi | PLATE FOR OSTEOSYNTHESIS OF THE FEMORE IN CARBON AND SILVER |
EP2303191A2 (en) * | 2008-06-02 | 2011-04-06 | Skeletal Dynamics, LLC | Hybrid orthopedic implant |
US8721643B2 (en) | 2005-08-23 | 2014-05-13 | Smith & Nephew, Inc. | Telemetric orthopaedic implant |
EP2882360A1 (en) * | 2012-08-13 | 2015-06-17 | Biotech Ortho | Device for coaptation of bone fragments and methods for producing such a device |
WO2015124913A1 (en) * | 2014-02-20 | 2015-08-27 | Invibio Limited | Medical implant |
WO2016097636A1 (en) * | 2014-12-19 | 2016-06-23 | Biotech Ortho | Coaptation plate comprising a metal core and a polymer overmould |
US9492210B2 (en) | 2008-10-15 | 2016-11-15 | Smith & Nephew, Inc. | Composite internal fixators |
CN108186102A (en) * | 2018-02-05 | 2018-06-22 | 上海锐植医疗器械有限公司 | Non metal implant screw locking structure |
EP3167830A4 (en) * | 2014-07-09 | 2018-08-01 | National University Corporation Nagoya University | Locking plate system for treatment of fracture of distal radius |
US10085780B2 (en) | 2006-05-26 | 2018-10-02 | Mark Richard Cunliffe | Bone fixation device |
WO2020191009A1 (en) * | 2019-03-18 | 2020-09-24 | Lee Thomas Hoon | Hybrid bone plate |
WO2022058719A1 (en) * | 2020-09-16 | 2022-03-24 | Invibio Device Component Manufacturing Limited | Devices comprising composite materials |
WO2024047335A1 (en) * | 2022-09-02 | 2024-03-07 | Invibio Device Component Manufacturing Limited | Devices comprising composite materials |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108125713B (en) * | 2017-12-28 | 2024-02-23 | 武汉康斯泰德科技有限公司 | Long-chain carbon fiber PEEK (polyether-ether-ketone) outer-wrapped thermal-forming bone fixing plate and forming method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0013862A1 (en) * | 1979-01-26 | 1980-08-06 | Osteo Ag | Osteosynthetic plate |
DE3914164C1 (en) * | 1989-04-28 | 1991-01-03 | Aesculap Ag, 7200 Tuttlingen, De |
-
2003
- 2003-08-28 GB GB0320208A patent/GB2405342A/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0013862A1 (en) * | 1979-01-26 | 1980-08-06 | Osteo Ag | Osteosynthetic plate |
DE3914164C1 (en) * | 1989-04-28 | 1991-01-03 | Aesculap Ag, 7200 Tuttlingen, De |
Cited By (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8721643B2 (en) | 2005-08-23 | 2014-05-13 | Smith & Nephew, Inc. | Telemetric orthopaedic implant |
GB2435648A (en) * | 2006-03-01 | 2007-09-05 | Invibio Ltd | A polymeric material assembly |
US8337506B2 (en) | 2006-05-26 | 2012-12-25 | Mark Richard Cunliffe | Combination bone fixation device and bending tool |
WO2007138270A3 (en) * | 2006-05-26 | 2008-04-10 | Mark Richard Cunliffe | A bone fixation device |
US10085780B2 (en) | 2006-05-26 | 2018-10-02 | Mark Richard Cunliffe | Bone fixation device |
US10932835B2 (en) | 2006-05-26 | 2021-03-02 | Mark Richard Cunliffe | Bone fixation device |
EP2786719A1 (en) * | 2006-05-26 | 2014-10-08 | Mark Richard Cunliffe | Bone fixation device |
WO2008134264A1 (en) * | 2007-04-27 | 2008-11-06 | Synthes Usa, Llc | Implant devices constructed with metallic and polymeric components |
EP2033670A1 (en) | 2007-07-17 | 2009-03-11 | BrainLAB AG | Attachment device for medical purposes, in particular for attaching a reference geometry for navigation-assisted operations to a body, in particular to a bone |
US8939995B2 (en) | 2007-07-17 | 2015-01-27 | Brainlab Ag | Radiolucent reference for computer-assisted surgery |
EP2303191A2 (en) * | 2008-06-02 | 2011-04-06 | Skeletal Dynamics, LLC | Hybrid orthopedic implant |
EP2303191A4 (en) * | 2008-06-02 | 2012-12-12 | Skeletal Dynamics Llc | Hybrid orthopedic implant |
US9492210B2 (en) | 2008-10-15 | 2016-11-15 | Smith & Nephew, Inc. | Composite internal fixators |
US11096726B2 (en) | 2008-10-15 | 2021-08-24 | Smith & Nephew, Inc. | Composite internal fixators |
US10357292B2 (en) | 2008-10-15 | 2019-07-23 | Smith & Nephew, Inc. | Composite internal fixators |
CN102387754A (en) * | 2009-04-08 | 2012-03-21 | 斯特赖克特劳马股份公司 | Hybrid bone plate |
CN102387754B (en) * | 2009-04-08 | 2015-08-19 | 斯特赖克特劳马股份公司 | Mixing hone lamella |
AU2009344053B2 (en) * | 2009-04-08 | 2013-03-07 | Stryker European Operations Holdings Llc | Hybrid bone plate |
US9622800B2 (en) | 2009-04-08 | 2017-04-18 | Stryker European Holdings I, Llc | Hybrid bone plate |
JP2012522543A (en) * | 2009-04-08 | 2012-09-27 | ストライカー トラウマ アーゲー | Hybrid bone plate |
US10123830B2 (en) | 2009-04-08 | 2018-11-13 | Stryker European Holdings I, Llc | Hybrid bone plate |
WO2010115458A1 (en) | 2009-04-08 | 2010-10-14 | Stryker Trauma Gmbh | Hybrid bone plate |
ITRM20100496A1 (en) * | 2010-09-27 | 2010-12-27 | Alessia Zaccardi | PLATE FOR OSTEOSYNTHESIS OF THE FEMORE IN CARBON AND SILVER |
EP2882360A1 (en) * | 2012-08-13 | 2015-06-17 | Biotech Ortho | Device for coaptation of bone fragments and methods for producing such a device |
EP2882360B1 (en) * | 2012-08-13 | 2022-10-19 | Tornier | Device for coaptation of bone fragments and methods for producing such a device |
WO2015124913A1 (en) * | 2014-02-20 | 2015-08-27 | Invibio Limited | Medical implant |
EP3167830A4 (en) * | 2014-07-09 | 2018-08-01 | National University Corporation Nagoya University | Locking plate system for treatment of fracture of distal radius |
US10980582B2 (en) | 2014-07-09 | 2021-04-20 | Nipro Corporation | Locking plate system for treatment of distal radius fracture |
WO2016097636A1 (en) * | 2014-12-19 | 2016-06-23 | Biotech Ortho | Coaptation plate comprising a metal core and a polymer overmould |
US10420594B2 (en) | 2014-12-19 | 2019-09-24 | Tornier | Coaptation plate comprising a metal core and a polymer overmould |
FR3030219A1 (en) * | 2014-12-19 | 2016-06-24 | Biotech Ortho | COATING PLATE COMPRISING A METAL WAVE AND A POLYMER OVERMOLDING |
WO2019148773A1 (en) * | 2018-02-05 | 2019-08-08 | 上海锐植医疗器械有限公司 | Nonmetal implant screw locking structure |
CN108186102A (en) * | 2018-02-05 | 2018-06-22 | 上海锐植医疗器械有限公司 | Non metal implant screw locking structure |
US11510716B2 (en) | 2018-02-05 | 2022-11-29 | Shanghai Reach Medical Instrument Co., Ltd. | Nonmetallic implant screw locking structure |
CN108186102B (en) * | 2018-02-05 | 2023-12-05 | 上海锐植医疗器械有限公司 | Non-metallic implant screw locking structure |
WO2020191009A1 (en) * | 2019-03-18 | 2020-09-24 | Lee Thomas Hoon | Hybrid bone plate |
US11628000B2 (en) | 2019-03-18 | 2023-04-18 | Glw, Inc. | Hybrid bone plate |
WO2022058719A1 (en) * | 2020-09-16 | 2022-03-24 | Invibio Device Component Manufacturing Limited | Devices comprising composite materials |
WO2024047335A1 (en) * | 2022-09-02 | 2024-03-07 | Invibio Device Component Manufacturing Limited | Devices comprising composite materials |
Also Published As
Publication number | Publication date |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |