DE202007003452U1 - Osteoactive filling pen for closing intraoperative drill and screw holes - Google Patents
Osteoactive filling pen for closing intraoperative drill and screw holes Download PDFInfo
- Publication number
- DE202007003452U1 DE202007003452U1 DE202007003452U DE202007003452U DE202007003452U1 DE 202007003452 U1 DE202007003452 U1 DE 202007003452U1 DE 202007003452 U DE202007003452 U DE 202007003452U DE 202007003452 U DE202007003452 U DE 202007003452U DE 202007003452 U1 DE202007003452 U1 DE 202007003452U1
- Authority
- DE
- Germany
- Prior art keywords
- filler
- filling
- pen according
- pin
- pen
- 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.)
- Expired - Lifetime
Links
- 239000000945 filler Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 7
- 230000000975 bioactive effect Effects 0.000 claims description 3
- 239000001506 calcium phosphate Substances 0.000 claims description 3
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 3
- 235000011010 calcium phosphates Nutrition 0.000 claims description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims description 3
- 239000003242 anti bacterial agent Substances 0.000 claims description 2
- 229940088710 antibiotic agent Drugs 0.000 claims description 2
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 2
- 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 claims description 2
- 210000000988 bone and bone Anatomy 0.000 description 14
- 239000000126 substance Substances 0.000 description 4
- 239000001993 wax Substances 0.000 description 4
- 239000000316 bone substitute Substances 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229960001714 calcium phosphate Drugs 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- TWQHGBJNKVFWIU-UHFFFAOYSA-N 8-[4-(4-quinolin-2-ylpiperazin-1-yl)butyl]-8-azaspiro[4.5]decane-7,9-dione Chemical compound C1C(=O)N(CCCCN2CCN(CC2)C=2N=C3C=CC=CC3=CC=2)C(=O)CC21CCCC2 TWQHGBJNKVFWIU-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 235000013871 bee wax Nutrition 0.000 description 1
- 239000012166 beeswax Substances 0.000 description 1
- 239000005312 bioglass Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 230000008468 bone growth Effects 0.000 description 1
- 210000001185 bone marrow Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 210000000130 stem cell Anatomy 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 229910000811 surgical stainless steel Inorganic materials 0.000 description 1
- 210000002303 tibia Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 230000003313 weakening effect Effects 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
- 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 or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/866—Material or manufacture
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1757—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the spine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00004—(bio)absorbable, (bio)resorbable or resorptive
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/02—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors
- A61B17/025—Joint distractors
- A61B2017/0256—Joint distractors for the spine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
- A61B2090/037—Automatic limiting or abutting means, e.g. for safety with a frangible part, e.g. by reduced diameter
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
Füllstift zum Verschließen intraoperativ geschaffener Stift- oder Schraubenlöcher, dadurch gekennzeichnet, dass dieser Füllstift in seiner räumlichen Ausdehnung dem Stift angenähert ist, der von dem jeweiligen chirurgischen Instrument verwendet wurde.filling pin for closing intraoperatively created pen or Screw holes, characterized in that this filler pin in its spatial extension approximates the pen that was used by the respective surgical instrument.
Description
Technisches UmfeldTechnical environment
Es
ist bekannt, bei der chirurgischen Versorgung von Knochendefekten
chirurgische Instrumente zu verwenden, die mittels Stiften, insbesondere Schrauben,
an den zu behandelnden Knochen fixiert werden. Solche Instrumente
sind beispielsweise aus dem
Es ist bislang üblich, solche intraoperativ geschaffenen Nagel- oder Schraubenlöcher, die einzig der Halterung des jeweiligen chirurgischen Instruments dienen, ohne weitere Behandlung zu belassen oder höchstens mit Knochenwachs zu stopfen. Knochenwachs wird aber nicht resorbiert und bleibt somit als Fremdkörper im Verschlussloch, ohne dass der Knochen die Möglichkeit hat, das Wachs abzubauen oder in neue Knochensubstanz umzuwandeln. Knochenwachs, ein raffiniertes Bienenwachs, kann sogar zu granulomatöser Reaktion führen und wird nur mangels besserer Alternativen eingesetzt. Insbesondere bei nur geringer knochentragender Substanz kann das intraoperative Erzeugen von nur kurzfristig benötigten Schrauben- oder Stiftaufnahmen jedoch zu einer weiteren Schwächung der Knochenabschnitte führen, die den Erfolg des Eingriffs gefährden kann. Dies gilt beispielsweise für Wirbelkörper.It It has hitherto been customary to use such intraoperatively or screw holes, the only the holder of the respective surgical instruments are used without further treatment or leave to stuff with bone wax at most. Bone wax will but not absorbed and thus remains as a foreign body in the lock hole, without the bone the possibility has to break down the wax or convert it into new bone substance. Bone wax, a refined beeswax, may even become more granulomatous Reaction lead and is only for lack of better alternatives used. Especially with only a small bone-carrying substance can the intraoperative generation of short-term needed Screw or pin recordings, however, to further weakening The bone sections that guide the success of the procedure can endanger. This applies, for example, to vertebral bodies.
Offenbarung der ErfindungDisclosure of the invention
Technisches ProblemTechnical problem
Die vorliegende Erfindung hat es sich daher zur Aufgabe gemacht, die Vorteile der sicheren intraoperativen Fixierung von chirurgischen Instrumenten zu erhalten und gleichzeitig die damit verbundenen Nachteile zu minimieren.The The present invention has therefore set itself the task of the Benefits of Safe Intraoperative Fixation of Surgical To obtain instruments and at the same time the associated disadvantages to minimize.
Technische LösungTechnical solution
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass Stifte aus bioaktivem bzw. bioreaktivem Material bereitgestellt werden, deren äußere Form den Stiften des jeweiligen Instruments nachgebildet ist. Nach Entfernung des eigentlichen Haltestifts, der regelmäßig aus chirurgischem Stahl hergestellt ist, kann der Operateur einen entsprechenden Stift aus bioaktivem bzw. bioreaktivem Material in die künstlich geschaffene Öffnung annähernd formschlüssig einsetzen. Unter annähernd formschlüssig wird hier eine Form verstanden, die der Form des eigentlichen Stiftes soweit angenähert ist, dass das von diesem geschaffenene Loch ganz oder zum Teil gefüllt wird. Es ist jedoch nicht erforderlich, wenn auch möglich, dass der Füllstift ein Schraubengewinde aufweist. Für die hier beschriebene Erfindung wird es bereits als ausreichend erachtet, dass der Füllstift in seiner länglichen Ausrichtung etwas kürzer, höchstens jedoch genauso lang ist wie der eigentliche Stift. In der räumlichen Ausdehnung kann der erfindungsgemäße Füllstift sowohl zylindrisch, als Quader, aber auch als Konus oder sonstiger Körper ausgestaltet sein. Der so behandelte Knochen unmittelbar erhält damit eine gewisse Primärstabilität, die sich durch die Anregung des natürlichen Knochenwachstums im weiteren Verlauf zu einer Stabilität weiterentwickeln kann, die derjenigen vor dem Anbringen der Fixierlöcher entspricht.These The object is achieved according to the invention that pens of bioactive or bioreactive material provided be whose outer shape the pins of the respective Instruments is simulated. After removal of the actual retaining pin, the regularly made of surgical steel is, the surgeon can use a corresponding pin of bioactive or bioreactive material in the artificially created opening use approximately form-fitting. Under approximate form-fitting is understood here a form that the shape of the actual pen is so far approximated that of This created hole is filled in whole or in part. It is not necessary, though possible, that the filler pin has a screw thread. For the invention described herein already considers it sufficient considers that the filler pen in its elongated Alignment a little shorter, but at the most long is like the actual pen. In the spatial extension the filling pen according to the invention can both cylindrical, as a cuboid, but also as a cone or other body be designed. The thus treated bone immediately receives it a certain primary stability, which is characterized by the stimulation of natural bone growth in the further Course to develop a stability that can corresponds to that before attaching the fixing holes.
Das Material für diese Füllstifte muss einerseits über genügend Festigkeit verfügen, um in das jeweils zu schließende Fixierloch eingebracht werden zu können und dem Knochen zu einer Primärstabilität zu verhelfen, andererseits aber genügend Porosität aufweisen, um sich im weiteren Heilungsverlauf rasch mit stammzellenhaltiger Körpersubstanz (Blut, Knochenmark) zu durchsetzen und in Knochensubstanz umzuwandeln. Als solches kommt insbesondere ein Knochenersatzmaterial aus Hydroxylapatit oder anderen Kalzium-Phospaten in Betracht, die aus einer wesentlich festeren, belastbaren Kalzium-Phosphat-Phase als die bekannten und erhältlichen Knochenersatzwerkstoffe gebildet sind. Es ist ferner möglich, diese Knochenersatzmaterialien in Gerüste aus Biogläsern, beispielsweise aus Siliciumdioxid, einzubinden.The Material for these Füllstifte must on the one hand over have enough strength to work in each can be introduced to be closed fixing hole and to give the bone primary stability, on the other hand, however, have sufficient porosity, in the further healing process quickly with stem cell-containing Body substance (blood, bone marrow) to enforce and in To transform bone substance. As such comes in particular Bone replacement material from hydroxyapatite or other calcium phosphate which may consist of a much firmer, stronger calcium-phosphate phase as the known and available bone replacement materials are formed. It is also possible to use these bone replacement materials in scaffoldings made of bio glasses, for example Silica, integrate.
Die Füllstifte sind vorzugsweise als Senkschrauben ausgebildet. Auf diese Weise wird vermieden, dass herausstehende Schraubenköpfe das angrenzende Gewebe nach der Operation reizen können. In einer alternativen Ausführungsform können die Schrauben auch abknickbar oder mit einem Abrisskopf und Sollbruchstelle versehen werden, der es dem Operateur ermöglicht, durch Ausüben eines überhöhten Drehmoments ein geplantes Abreißen herbeizuführen.The Füllstifte are preferably designed as countersunk screws. This avoids protruding screw heads can irritate the adjacent tissue after surgery. In an alternative embodiment, the Screws can also be bent off or with a tear-off head and predetermined breaking point provided by the surgeon Exerting excessive torque to cause a planned demolition.
In einer weiteren Ausführungsform können dem Füllstift Antibiotika beigemengt werden, die während der Resorptionsphase langsam und kontinuierlich direkt in das Operationsfeld abgegeben werden. Es ist ferner denkbar, den Füllstift mit dübelartigen Verankerungsvorsprüngen zu versehen, die den Stift gegen ein unbeabsichtigtes Herausrutschen absichern.In a further embodiment, antibiotics can be added to the filling pen, which release slowly and continuously directly into the surgical field during the absorption phase become. It is also conceivable to provide the filler with dowel-like anchoring projections, which secure the pin against accidental slipping out.
In einer weiteren Ausführungsalternative wird der Füllstift nicht mittels des gleichen Instrumentariums wie der ursprüngliche, metallene Stift eingebracht, sondern mittels einer Rohrhülse, die an das Fülloch geführt wird und durch die der Stift mittels Kolbendruck in das Loch eingepresst wird. Eine solche Rohrhülse kann ferner mit einem Magazin, etwa in der Form eines Revolvermagazins, versehen sein.In Another alternative is the filler pen not using the same instruments as the original one, introduced metal pin, but by means of a tubular sleeve, which is led to the filling hole and through the the pin is pressed by piston pressure into the hole. A Such tube sleeve can also be used with a magazine, such as in the form of a revolver magazine, be provided.
Kurze Beschreibung von ZeichnungenShort description of drawings
Die Erfindung wird im folgenden näher unter Bezugnahme auf die Zeichnung näher erläutert, die ein vorteilhaftes Ausführungsbeispiel veranschaulicht. Es zeigt:The The invention will be further explained with reference to FIG the drawing explained in more detail, which is an advantageous Embodiment illustrated. It shows:
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 202005000189 [0001] - DE 202005000189 [0001]
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202007003452U DE202007003452U1 (en) | 2007-03-06 | 2007-03-06 | Osteoactive filling pen for closing intraoperative drill and screw holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202007003452U DE202007003452U1 (en) | 2007-03-06 | 2007-03-06 | Osteoactive filling pen for closing intraoperative drill and screw holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE202007003452U1 true DE202007003452U1 (en) | 2008-07-17 |
Family
ID=39628456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE202007003452U Expired - Lifetime DE202007003452U1 (en) | 2007-03-06 | 2007-03-06 | Osteoactive filling pen for closing intraoperative drill and screw holes |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE202007003452U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9907582B1 (en) | 2011-04-25 | 2018-03-06 | Nuvasive, Inc. | Minimally invasive spinal fixation system and related methods |
| CN108670327A (en) * | 2018-05-24 | 2018-10-19 | 山西大医院（山西医学科学院） | A kind of lane device applied to operation on vertebra |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005000189U1 (en) | 2005-01-07 | 2005-03-17 | Cervitech Inc | Device for creating cut at vertebral body, comprising guide element and positioning tool |
-
2007
- 2007-03-06 DE DE202007003452U patent/DE202007003452U1/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005000189U1 (en) | 2005-01-07 | 2005-03-17 | Cervitech Inc | Device for creating cut at vertebral body, comprising guide element and positioning tool |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9907582B1 (en) | 2011-04-25 | 2018-03-06 | Nuvasive, Inc. | Minimally invasive spinal fixation system and related methods |
| US10716600B1 (en) | 2011-04-25 | 2020-07-21 | Nuvasive, Inc. | Minimally invasive spinal fixation system |
| US11596453B2 (en) | 2011-04-25 | 2023-03-07 | Nuvasive, Inc. | Minimally invasive spinal fixation system |
| CN108670327A (en) * | 2018-05-24 | 2018-10-19 | 山西大医院（山西医学科学院） | A kind of lane device applied to operation on vertebra |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 20080821 |
|
| R150 | Term of protection extended to 6 years |
Effective date: 20100928 |
|
| R157 | Lapse of ip right after 6 years |
Effective date: 20131001 |