DE202014001978U1 - Implant with insertion and removal instruments for distraction arthrodesis of the sacroiliac joint - Google Patents
Implant with insertion and removal instruments for distraction arthrodesis of the sacroiliac joint Download PDFInfo
- Publication number
- DE202014001978U1 DE202014001978U1 DE201420001978 DE202014001978U DE202014001978U1 DE 202014001978 U1 DE202014001978 U1 DE 202014001978U1 DE 201420001978 DE201420001978 DE 201420001978 DE 202014001978 U DE202014001978 U DE 202014001978U DE 202014001978 U1 DE202014001978 U1 DE 202014001978U1
- Authority
- DE
- Germany
- Prior art keywords
- implant
- screw
- larger
- thread
- cylinders
- 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
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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
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7055—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant connected to sacrum, pelvis or skull
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8645—Headless screws, e.g. ligament interference screws
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
- A61B2017/922—Devices for impaction, impact element
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30988—Other joints not covered by any of the groups A61F2/32 - A61F2/4425
- A61F2002/30995—Other joints not covered by any of the groups A61F2/32 - A61F2/4425 for sacro-iliac joints
Abstract
Implantat (1–5) zur Distraktionsarthrodese des Iliosakralgelenkes, welches in den Recessus über ein Einschlaginstrument (13) eingebracht bzw. mit einem Entfernungsinstrument (15) wieder herausgeschlagen werden kann dadurch gekennzeichnet, dass das Implantat (1–5) von der Seite gesehen aus einem trapezförmigen Korpus (1) mit abgerundeten Kanten besteht. Dabei läuft der Korpus von hinten nach vorne und von oben nach unten konisch zu (1–3).Implant (1-5) for distraction arthrodesis of the sacroiliac joint, which can be introduced into the recess using an impactor (13) or knocked out again with a removal instrument (15), characterized in that the implant (1-5) viewed from the side a trapezoidal body (1) with rounded edges. The body tapers conically from back to front and from top to bottom (1–3).
Description
Arthrodesen sowie Transfixationen des Iliosakralgelenkes zur Behandlung primärer Arthrosen, sekundären Arthrosen, Instabilitäten sowie Spondarthritiden werden in der Mehrzahl der Fälle über einen lateralen, weniger häufig über einen ventralen Zugang unter Kompression des Gelenkes und meist ohne Anlagerung von Knochen oder Knochenersatzmaterialien durchgeführt. Diese Operationen sind entweder mit einem großen Risiko der Verletzung benachbarter Strukturen wie z. B. Nerven und Gefäßen und/oder einem Ausbleiben der knöchernen Heilung und somit anhaltenden Schmerzen gekennzeichnet.Arthrodeses and transfixations of the sacroiliac joint for the treatment of primary arthroses, secondary arthroses, instabilities and spondylitis are in the majority of cases via a lateral, less often via a ventral access under compression of the joint and usually without attachment of bone or bone replacement materials performed. These operations are either at great risk of injuring neighboring structures such as As nerves and vessels and / or a lack of bony healing and thus persistent pain characterized.
Ein direkter oder indirekter Zugang zum Gelenk von dorsal wird seltener propagiert, obwohl dieser weitaus sicherer und schonender für den Patienten erfolgen kann. Ebenso gibt es nur wenige Operationsmethoden, die eine indirekte Arthrodese des Gelenkes unter Distraktion der Gelenkflächen über den Recessus beschreiben. Die hier verwendeten Implantate haben den Nachteil der hohen Punktbelastung und können bei schlechter Knochenqualität in die Umgebung einsinken bzw. sintern und somit ihre distrahierende Wirkung verlieren.Direct or indirect access to the dorsal joint is less commonly propagated, although this can be far safer and gentler for the patient. Likewise, there are only a few surgical methods that describe an indirect arthrodesis of the joint with distraction of the articular surfaces via the recess. The implants used here have the disadvantage of high point load and can sink or sinter with poor bone quality into the environment and thus lose their distracting effect.
Der im Schutzanspruch 1 angegebenen Erfindung liegt das Problem zugrunde, ein Implantat zu entwickeln, dass über den hinter dem Iliosakralgelenk liegenden Recessus eingebracht werden kann und nicht in den Knochen einsinkt bzw. auch bei verminderter Knochenqualität die notwendige Distraktion zwischen Os ilium und Os sacrum aufrecht erhält.The protection specified in
Dieses Problem wird mit den im Schutzanspruch 1 aufgeführten Merkmalen gelöst.This problem is solved with the features listed in the
Durch flächige Abstützung des Implantatkorpus (
Ein weiteres Problem von in den Recessus des Iliosakralgelenkes eingebrachten Implantaten betrifft die Primärstabilität des Implantates im angrenzenden Knochen.Another problem of implants inserted into the sacral iliac recess concerns the primary stability of the implant in adjacent bone.
Dieses Problem wird mit den im Schutzanspruch 2 aufgeführten Merkmalen gelöst.This problem is solved with the features listed in the protection claim 2.
Durch Einbringen von Schrauben (
Von Vorteil ist es, dass das Implantat herausragende Eigenschaften zur knöchernen Integration besitzt.It is advantageous that the implant has outstanding properties for bony integration.
Dies wird mit den im Schutzanspruch 3 aufgeführten Merkmalen gelöst.This is achieved with the features listed in the protection claim 3.
Hierdurch ist sowohl ein anwachsen von Knochen an den Korpus (
Weiterhin ist zu gewährleisten, dass das Implantat tief genug in den Recessus eingebracht werden kann.Furthermore, it must be ensured that the implant can be inserted deeply enough into the recess.
Dieses Problem wird mit den in Schutzanspruch 4 aufgeführten Merkmalen gelöst.This problem is solved with the features listed in
Über einen entlang der lasttragenden Achse eingebrachten Führungsdraht wird das Implantat mit einem Einschlaginstrument (
Eine vorteilhafte Ausgestaltung der Erfindung ist in Schutzanspruch 5 dargestellt, die im Falle einer Revision eine erleichterte Entfernung des Implantates garantiert.An advantageous embodiment of the invention is shown in
Hierbei wird gegebenenfalls zunächst die optionale und kleinere der beiden Schrauben (
Ein Ausführungsbeispiel der Erfindung wird anhand der
In den Figuren ist der Korpus (
Sowohl Korpus (
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201420001978 DE202014001978U1 (en) | 2014-03-05 | 2014-03-05 | Implant with insertion and removal instruments for distraction arthrodesis of the sacroiliac joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201420001978 DE202014001978U1 (en) | 2014-03-05 | 2014-03-05 | Implant with insertion and removal instruments for distraction arthrodesis of the sacroiliac joint |
Publications (1)
Publication Number | Publication Date |
---|---|
DE202014001978U1 true DE202014001978U1 (en) | 2014-04-08 |
Family
ID=50556359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201420001978 Expired - Lifetime DE202014001978U1 (en) | 2014-03-05 | 2014-03-05 | Implant with insertion and removal instruments for distraction arthrodesis of the sacroiliac joint |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE202014001978U1 (en) |
-
2014
- 2014-03-05 DE DE201420001978 patent/DE202014001978U1/en not_active Expired - Lifetime
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20140515 |
|
R156 | Lapse of ip right after 3 years |