EP3801319A1 - Osteosynthese-montageset sowie verwendung eines exzenterverbinders - Google Patents
Osteosynthese-montageset sowie verwendung eines exzenterverbindersInfo
- Publication number
- EP3801319A1 EP3801319A1 EP19727426.9A EP19727426A EP3801319A1 EP 3801319 A1 EP3801319 A1 EP 3801319A1 EP 19727426 A EP19727426 A EP 19727426A EP 3801319 A1 EP3801319 A1 EP 3801319A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- osteosynthesis
- eccentric
- set according
- bolt
- bone
- 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- Withdrawn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
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 71
- 239000007943 implant Substances 0.000 claims abstract description 42
- 210000003625 skull Anatomy 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 10
- 239000003814 drug Substances 0.000 claims description 9
- 229940079593 drug Drugs 0.000 claims description 9
- 238000004382 potting Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 230000035876 healing Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000004659 sterilization and disinfection Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000013543 active substance Substances 0.000 description 2
- 238000005094 computer simulation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 229920000747 poly(lactic acid) Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 241000050051 Chelone glabra Species 0.000 description 1
- 229920002101 Chitin Polymers 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- -1 chitin Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000824 cytostatic agent Substances 0.000 description 1
- 230000001085 cytostatic effect Effects 0.000 description 1
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000012377 drug delivery Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 239000000122 growth hormone Substances 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 229960003444 immunosuppressant agent Drugs 0.000 description 1
- 239000003018 immunosuppressive agent Substances 0.000 description 1
- 230000003455 independent Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010883 osseointegration Methods 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000011477 surgical intervention Methods 0.000 description 1
- 229960001295 tocopherol Drugs 0.000 description 1
- 229930003799 tocopherol Natural products 0.000 description 1
- 235000010384 tocopherol Nutrition 0.000 description 1
- 239000011732 tocopherol Substances 0.000 description 1
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
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
- A61B17/688—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for reattaching pieces of the skull
Definitions
- the present invention relates to an osteosynthesis mounting set and a Ver use of an eccentric connector.
- osteosyntheses e.g. for attaching an artificial bone chenplatte to a bone is currently done in various ways.
- the bone plate is placed over the edge of the bone or it placed who the connecting bridges between the bone implants which are tightened with screws. In both cases, a supernatant can be seen through the bridges or bone plates.
- a bone plate can be introduced laterally
- Screws so-called bone screws, are connected to the skull. Here you have to work very carefully. In addition, there may be situations where there is not enough bone material to anchor the screw.
- the present invention achieves this object by an osteosynthesis mounting set having the features of claim 1 and by a use having the features of claim 15.
- the present invention relates to an osteosynthesis mounting set. It includes at least one bone implant.
- This can be an artificial bone implant, for example of magnesium oxide, PEEK (polyether ether ketone), metal (eg stainless steel or titanium) or resorbable components (eg polylactide).
- This artificial bone implant may preferably be patient-specific. can be made.
- a bone implant may also be an endogenous bone which has been appropriately processed before the surgical intervention, for example by inserting holes for inserting eccentrics.
- the osteosynthesis mounting set comprises one or preferably more eccentric connectors.
- Eccentric connectors are known in the field of furniture construction. They typically include an eccentric and a bolt, in particular special a bolt. Since the principle of the eccentric connector are also applicable to other mechanical connection means, which have a head, in which the eccentric can engage, is to be understood as an eccentric in the context of the present invention, a combination of screw with egg nem screw head and eccentric.
- an eccentric connector can always be constructed in at least two parts. Furthermore, advantageously, a cap can be provided, as it is used analogously in furniture.
- the eccentric connector is at least two parts comprising a bolt or a screw, for use in a bone, with a Bol zenkopf or screw head and an eccentric for use in the bone implant, wherein the eccentric has an inner spiral, for engagement with the bolt head or screw head.
- the bone implant may be an artificial patient-made custom bone implant, preferably made of a plastic or a ceramic.
- the bone implant is designed as a bone plate.
- the bolt may preferably be formed as a bolt with a tool holder.
- the bolt or screw and / or the eccentric be made of a resorbable material or steel or titanium.
- the bolt or the screw, the eccentric from a cover cap for covering the tool holder and / or a sleeve along the bolt has a release or drug delivery system for promoting healing and / or disinfection.
- the cap can counteract a unintentional solicited release of the eccentric.
- the bone implant in particular has holes for receiving eccentrics.
- the eccentrics may have one or more latching lugs for latching the bolts during a screwing movement in the region of the inner spiral.
- the bone implant may preferably be achieved by at least one three-point support. Therefore, the osteosynthesis mounting kit includes at least three bolts or screws and three eccentrics.
- the bone implant advantageously comprises one or more inner Aufla ge perennial for pre-centering of the bone implant when it rests on the bolt. These can fe with slight oversize the contours of the bolts or screws or at least their screw heads or Bolzenköp.
- the osteosynthesis mounting kit can also have a surgical template for Positionie tion of blind holes in a bone, especially in the edge of an opening in a skull.
- a potting compound may be included in the osteosynthesis mounting kit for potting the eccentric with the bone implant. It can be e.g. to trade an Expositharz. Resorbable material and material with the aforementioned release and / or drug system may be provided in the potting compound.
- the bone implant can be advantageously constructed multimodal.
- an eccentric connector for fixing two bones, in particular at least one artificial bone implant with a natural bone. Also connections between a natural bone, so a natural bone implant and a bone chen or between two bone implants are possible.
- the bone implant can be multimodal so multi-part structure.
- individual parts or all parts of the osteosynthesis mounting kit can be designed as single-use components.
- FIG. 1 shows an inventive mounting system comprising a prefabricated skull plate and a plurality of eccentric connectors
- Fig. 2 a known eccentric connector.
- Fig. 1 shows an osteosynthesis with an artificial bone implant 1 in the form of a skull plate 1 a. This can preferably be made patient-individual forth. This can preferably be carried out analogously to WO 2017 153 560 A1 as follows:
- the bone graft may consist of a single skull plate or two or more bone or bone fragments.
- the data may preferably be recordings of an imaging method. Usually, these images are used by diagnostic imaging techniques. In the present case, however, these recordings are made to create a model inde pendent of a diagnosis or alternatively used after diagnosis. Further details on preferred imaging methods can be found in WO 2017 153 560 A1.
- the model can be created as a computer model.
- the production specifications are preferably created on the basis of the computer model such that the sub-elements are dimensioned differently depending on their function di. Even a bone plate is slightly thicker at one point than at another.
- the required material thickness and flexibility of Knochenimplan tatabitese can be designed and manufactured individually by the model, which is based on patient-specific data.
- the step of manufacturing sub-elements can also include the adaptation of pre-fabricated elements, for example a grinding of a preform. hand of a patient-specific production specification.
- the creation of bone implant fabrication specifications is based on the model created, with the manufacturing specifications including the following:
- Fig. 1 shows in addition to the skull plate an eccentric connector 2 comprising egg nen eccentric 3 and a bolt 4.
- the eccentric 3 is cylindrical and has an inner coil 5 and a recess 6 for Einfraw ren a bolt head 10.
- the eccentric has a tool holder 7, e.g. a slot, a Phillips and / or a hexagonal socket or the like, in which a tool can engage.
- the bolt head 10 is brought into engagement with the inner coil 5.
- the inner spiral 5 is formed in Fig. 1 and 2 as a double spiral, but it may also be a single spiral.
- the threaded bolt 4 has a screw segment 8, a bolt shank 9 and a terminal bolt head 10.
- the skull plate 1 a has holes 14 for receiving the eccentric 3, such that the arranged in the eccentric 3 tool holder from the outside, ie the outside of the skull 12, is accessible.
- blind holes 13 are first drilled in the edge of the opening 1 1 of the skull 12.
- the edge of the opening 1 1 can also be pretreated to avoid undercuts, sharp corners and the like.
- the bolts are inserted into the blind holes 13, such that the Bolzen2020fte 9 and the bolt heads 10 protrude radially inwardly into the opening 1 1 of the skull 12.
- the skull plate is then placed on the stud shafts 9 and 10 bolt heads. While in the field of furniture often the furniture walls are to be sammengesteckt, here is only a placement or placing the Schwarz delplatte intended because there is no more space. However, unilateral attachment is e.g. on two bolts also conceivable, so that the Aufle gene takes place only on the two other bolts.
- eccentrics 3 are inserted into the holes 14 and rotated, so that the inner coil 5 comes into engagement with the respective bolt head.
- a non-illustrated cap can be plugged onto the top of the eccentric, which prevents deposits in the tool holder.
- the inner spiral 5 may have one or more detents, as rotation of the eccentric third
- the material of the bolts 4 and / or the eccentric 3 may consist of a Me tall, preferably steel, especially stainless steel, or titanium.
- the bolt 4 and / or the eccentric 3 can also be made of plastic, such as e.g. PEEK and in particular made of a resorbable plastic, e.g. PLA exist.
- Bolt 4 and / or the eccentric 3 or more Be constituents such as a cap or a potting compound may also consist of magnesium or magnesium oxide or hydroxyapatite.
- the bolt shank 9 may have an externally fitting sleeve.
- This sleeve or the cap can be made of a resorbable plastic, which is equipped with a release and / or drug system, in particular coated or integrated, is.
- active substances or active substances Substance systems are drugs. These can be, for example, antibiotics, immunosuppressants, growth hormones or cytostatics. Release systems include all substances which are typically added to the drug, for example, to control the release of the drug in the body with respect to the delivery period and the delivery site, or to preserve the drug under various conditions.
- Typical sub stances are for example tocopherol, which is often added as an antioxidant, or polysaccharides, such as chitin, for microencapsulation of a corresponding drug neiticians.
- the choice of the release system depends, inter alia, on the choice of Ma terials, ie the base material from which the sleeve or cap is to be made. Also, the eccentric 3 and / or the bolt 4 Kings nen have such drug and / or release system.
- the blind holes 13 may preferably be drilled slightly obliquely to allow better accessibility of the bolts.
- Fig. 2 shows again the eccentric connector 2 in detail.
- a hose e.g. a steel hose with a bit on a tool to be plugged.
- a prefabricated bearing surface may be arranged in the contour of the bolt, which allows a pre-centering of the bone plate when placed on the bolts.
- a drilling aid such as, for example, can be provided in a mounting set.
- a drilling template be present.
- a tool for inserting the bolt 4 and / or a drill for the blind holes 13 can be included in the mounting kit.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Neurology (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18176855.7A EP3578123A1 (de) | 2018-06-08 | 2018-06-08 | Osteosynthese-montageset sowie verwendung eines exzenterverbinders |
PCT/EP2019/064451 WO2019233995A1 (de) | 2018-06-08 | 2019-06-04 | Osteosynthese-montageset sowie verwendung eines exzenterverbinders |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3801319A1 true EP3801319A1 (de) | 2021-04-14 |
Family
ID=62750753
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18176855.7A Withdrawn EP3578123A1 (de) | 2018-06-08 | 2018-06-08 | Osteosynthese-montageset sowie verwendung eines exzenterverbinders |
EP19727426.9A Withdrawn EP3801319A1 (de) | 2018-06-08 | 2019-06-04 | Osteosynthese-montageset sowie verwendung eines exzenterverbinders |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18176855.7A Withdrawn EP3578123A1 (de) | 2018-06-08 | 2018-06-08 | Osteosynthese-montageset sowie verwendung eines exzenterverbinders |
Country Status (4)
Country | Link |
---|---|
US (1) | US20210244445A1 (de) |
EP (2) | EP3578123A1 (de) |
CA (1) | CA3102461A1 (de) |
WO (1) | WO2019233995A1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10205912A1 (de) * | 2002-02-13 | 2003-08-21 | Leibinger Medizintech | Vorrichtung zur Refixierung einer kraniotomierten Schädelkalotte |
DE20218213U1 (de) * | 2002-11-22 | 2003-02-20 | MONDEAL Medical Systems GmbH, 78532 Tuttlingen | Anordnung zum Fixieren eines aus einem Schädeldach herausgetrennten Kalottenabschnittes |
CN103099668B (zh) * | 2013-02-22 | 2014-10-29 | 常州市斯博特医疗器械有限公司 | 膨胀式挤压钉 |
EP3216406A1 (de) | 2016-03-11 | 2017-09-13 | Universität Basel | Verfahren zum bereitstellen von teilelementen eines mehrteiligen implantats oder einer mehrteiligen osteosynthese |
-
2018
- 2018-06-08 EP EP18176855.7A patent/EP3578123A1/de not_active Withdrawn
-
2019
- 2019-06-04 EP EP19727426.9A patent/EP3801319A1/de not_active Withdrawn
- 2019-06-04 WO PCT/EP2019/064451 patent/WO2019233995A1/de unknown
- 2019-06-04 US US16/972,806 patent/US20210244445A1/en not_active Abandoned
- 2019-06-04 CA CA3102461A patent/CA3102461A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US20210244445A1 (en) | 2021-08-12 |
WO2019233995A1 (de) | 2019-12-12 |
CA3102461A1 (en) | 2019-12-12 |
EP3578123A1 (de) | 2019-12-11 |
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