DE102004033471A1 - Instrument e.g. cement syringe, for standardized application of bone cement, has slack nozzle with which bone cement is pressed or absorbed into chamber that is formed according to prepared head of femur - Google Patents
Instrument e.g. cement syringe, for standardized application of bone cement, has slack nozzle with which bone cement is pressed or absorbed into chamber that is formed according to prepared head of femur Download PDFInfo
- Publication number
- DE102004033471A1 DE102004033471A1 DE200410033471 DE102004033471A DE102004033471A1 DE 102004033471 A1 DE102004033471 A1 DE 102004033471A1 DE 200410033471 DE200410033471 DE 200410033471 DE 102004033471 A DE102004033471 A DE 102004033471A DE 102004033471 A1 DE102004033471 A1 DE 102004033471A1
- Authority
- DE
- Germany
- Prior art keywords
- bone cement
- femoral head
- cement
- instrument
- hip joint
- 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- Withdrawn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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8808—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it with sealing collar for bone cavity
-
- 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
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3601—Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices
- A61F2/3603—Femoral heads ; Femoral endoprostheses for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices implanted without ablation of the whole natural femoral head
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4657—Measuring instruments used for implanting artificial joints
- A61F2002/467—Measuring instruments used for implanting artificial joints for measuring fluid pressure
Abstract
Description
Gattung des AnwendungsgegenstandesGenus of the application object
In der Hüftendoprothetik sind Instrumente zur standardisierten Applikation des Knochenzementes bekannt, z. B als Zementkartuschen, Zementspritzen, Zementsiegel, Markraumdrainagesysteme, Entlüftungssysteme etc.. Diese Systeme betreffen Techniken, die die Applikation des Knochenzementes in den vorbereiteten Oberschenkelmarkraum ermöglichen.In the hip arthroplasty are instruments for the standardized application of the bone cement known, for. B as cement cartridges, cement spray, cement seal, Medullary canal drainage systems, ventilation systems etc .. These systems concern techniques that the application of the Allow bone cement into the prepared femoral medullary cavity.
Bei den Oberflächenersatzprothesen des Hüftgelenkes (z. B. McMinn-Prothese) muss der Knochenzement auf den bearbeiteten Hüftkopf aufgebracht werden. Hier für sind bisher keine Instrumente auf dem Markt erhältlich, um diese spezielle Zementapplikation standardisiert zu ermöglichen.at the surface replacement prostheses of the hip joint (For example, McMinn prosthesis) must be the bone cement processed on the Femoral Head be applied. Therefor So far, there are no instruments available in the market for this particular cement application to be standardized.
Bei nahezu allen bisher auf dem Markt befindlichen Oberflächenersatzprothesen wird die Hüftkopfkappe mit Knochenzement verankert.at Nearly all surface replacement prostheses on the market so far becomes the femoral headcap anchored with bone cement.
Der Knochenzement wird dabei entweder in die Hüftkopfkappe vor dem Aufsetzen auf den bearbeiteten Hüftkopf eingefüllt und dann mit der Kappe auf den Hüftkopf aufgebracht. Beim Festschlagen der Hüftkopfkappe wird dann der Knochenzement in die spongiösen Räume und/oder speziell hergestellte Bohrungen eingepresst. Überschüssiger Knochenzement tritt seitlich aus und muss anschließend entfernt werden. Diese Technik wird in der Regel mit hochviskösem Knochenzement durchgeführt.Of the Bone cement is either in the Hüftkopfkappe before touchdown on the processed femoral head filled and then with the cap on the femoral head applied. When tightening the femoral head cap then the bone cement in the cancellous Rooms and / or specially produced holes pressed. Excess bone cement occurs laterally and must be followed be removed. This technique is usually done with high viscosity bone cement carried out.
Niedrigvisköser Knochenzement wird in der Regel direkt auf den bearbeiteten Hüftkopf aufgebracht und von Hand in die Spongiosa und/oder speziell hergestellte Bohrungen eingepresst. Anschließend wird die Hüftkopfkappe aufgebracht und der Zement beim Einschlagen noch weiter eingepresst und überschüssiger Zement tritt seitlich aus.Low-viscosity bone cement is usually applied directly to the machined femoral head and by Hand pressed into the cancellous bone and / or specially made holes. Subsequently becomes the femoral headcap Applied and pressed the cement while driving even further and excess cement exits sideways.
Beiden Techniken ist gemeinsam, das die Knochenzementapplikation nicht standardisiert erfolgt, die Qualität der Knochenzementschicht zwischen Hüftkopfkappe und bearbeitetem Hüftkopf ist daher sehr unterschiedlich und damit auch die Qualität der Hüftkopfkappenverankerung.Both Techniques are common, not the bone cement application standardized, the quality of the bone cement layer between femoral head cap and processed femoral head is therefore very different and therefore also the quality of Hüftkopfkappenverankerung.
Aufgabe der ErfindungTask of invention
Die Qualität der Knochenzementschicht wird beeinflusst durch die Homogenität der Zementschicht, die Dicke der Zementschicht vor Aufsetzen der Kappe, die Viskosität des Zementes, die Höhe des Einpressdruckes und die gleichmäßige Verteilung des Einpressdruckes über die Oberfläche des bearbeiteten Hüftkopfes. Mit dem erfindungsgemäß beschriebenen Instrument wird durch die auf den bearbeiteten Hüftkopf abgestimmte formende Applikationskammer eine standardisierte Dicke der Zementschicht gewährleistet. Der Zement kann in diese Kammer eingepresst oder eingesaugt werden. Die retrograde Zementapplikation vom Hüftkopfrand hin zur oberen Hüftkopfbegrenzung ermöglicht einen blasen- und fremdkörperfreien Zementmantel. Auch eine anterograde Zementapplikation ist mit einem semipermeablen Dichtungsring am Hüftkopfrand denkbar. Mittels einer Druckmesseinrichtung kann der mit der Zementspritze aufgebrachte Druck gemessen und reproduzierbar appliziert werden. Die Eindringtiefe des Knochenzementes in die Spongiosa und speziell hergestellte Bohrungen ist abhängig von der bekannten Viskosität des Knochenzementes und dem aufgebrachte Druck.The quality the bone cement layer is influenced by the homogeneity of the cement layer, the thickness of the cement layer before placing the cap, the viscosity of the cement, the height of the Pressing pressure and uniform distribution the press-in pressure over the surface of the machined femoral head. With the invention described Instrument is shaped by the shaping on the machined femoral head Application chamber a standardized thickness of the cement layer guaranteed. The cement can be pressed or sucked into this chamber. The retrograde cement application from the femoral head margin to the upper femoral head boundary allows a bladder and foreign body free Cement mantle. Also an anterograde cement application is with a Semipermeable sealing ring on Hüftkopfrand conceivable. through a pressure measuring device can be applied with the cement syringe Pressure measured and reproducibly applied. The penetration depth of the bone cement into the cancellous bone and specially made holes depends on from the known viscosity of the bone cement and the applied pressure.
Vorteileadvantages
Die entscheidenden Qualitätsparameter des Knochenzementes bei Oberflächenersatzprothesen des Hüftgelenkes (Dicke der Knochenzementschicht, Homogenität der Knochenzementschicht und Eindringtiefe der Knochenzementschicht) werden reproduzierbar erreicht.The decisive quality parameters of bone cement in surface replacement prostheses of the hip joint (Thickness of the bone cement layer, homogeneity of the bone cement layer and penetration depth of the bone cement layer) become reproducible reached.
Knochenzement fällt nicht in das Operationsgebiet sondern verbleibt im Applikatorsystem Das Instrument ermöglicht standardisierte Versuchsreihen, um die optimale Zementmanteldicke für die Verankerung von Oberflächenersatzprothesen des Hüftgelenkes zu bestimmen.bone cement does not fall into the operating area but remains in the applicator system Das Instrument allows standardized test series to determine the optimum cement jacket thickness for the Anchoring of surface replacement prostheses of the hip joint to determine.
Gewerbliche Nutzbarkeitcommercial usability
Das Applikationsinstumentarium ist auf alle bisher auf dem Markt befindlichen Oberflächenersatzprothesen des Hüftgelenkes anwendbar.The Applikationsinstumentarium is on all previously on the market Resurfacing prostheses of the hip joint applicable.
Ausführungsbeispielembodiment
Im
Ausführungsbeispiel
wird ein Hüftkopf
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410033471 DE102004033471A1 (en) | 2004-07-10 | 2004-07-10 | Instrument e.g. cement syringe, for standardized application of bone cement, has slack nozzle with which bone cement is pressed or absorbed into chamber that is formed according to prepared head of femur |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410033471 DE102004033471A1 (en) | 2004-07-10 | 2004-07-10 | Instrument e.g. cement syringe, for standardized application of bone cement, has slack nozzle with which bone cement is pressed or absorbed into chamber that is formed according to prepared head of femur |
Publications (1)
Publication Number | Publication Date |
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DE102004033471A1 true DE102004033471A1 (en) | 2006-01-26 |
Family
ID=35511567
Family Applications (1)
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DE200410033471 Withdrawn DE102004033471A1 (en) | 2004-07-10 | 2004-07-10 | Instrument e.g. cement syringe, for standardized application of bone cement, has slack nozzle with which bone cement is pressed or absorbed into chamber that is formed according to prepared head of femur |
Country Status (1)
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DE (1) | DE102004033471A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008092788A1 (en) * | 2007-02-01 | 2008-08-07 | Rudi Georg Bitsch | Cement applicator |
DE102011050361A1 (en) * | 2011-05-13 | 2012-11-15 | Philip Kasten | Exchangeable instrument attachment for cementing instrument for insertion of bone cement by pressure cementing for shoulder joints, is designed screwable or mountable on instrument tip of cementing pipe of cementing instrument |
DE102015105102A1 (en) * | 2015-04-01 | 2016-10-06 | Aesculap Ag | Medical cementing system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4274163A (en) * | 1979-07-16 | 1981-06-23 | The Regents Of The University Of California | Prosthetic fixation technique |
EP0598964B1 (en) * | 1992-11-20 | 1999-07-07 | Sulzer Orthopädie AG | Bone cement dispenser body for implant fixation |
EP1316297A1 (en) * | 2001-12-03 | 2003-06-04 | Sulzer Orthopedics Ltd. | Device for transfering bone cement into a spongiosa |
DE10233204A1 (en) * | 2002-07-17 | 2004-01-29 | Merete Medical Gmbh | Hip joint prosthesis consists of shaft inserted into proximal femur, cap as socket-head, air inlets and outlets and vacuum system connections |
-
2004
- 2004-07-10 DE DE200410033471 patent/DE102004033471A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4274163A (en) * | 1979-07-16 | 1981-06-23 | The Regents Of The University Of California | Prosthetic fixation technique |
EP0598964B1 (en) * | 1992-11-20 | 1999-07-07 | Sulzer Orthopädie AG | Bone cement dispenser body for implant fixation |
EP1316297A1 (en) * | 2001-12-03 | 2003-06-04 | Sulzer Orthopedics Ltd. | Device for transfering bone cement into a spongiosa |
DE10233204A1 (en) * | 2002-07-17 | 2004-01-29 | Merete Medical Gmbh | Hip joint prosthesis consists of shaft inserted into proximal femur, cap as socket-head, air inlets and outlets and vacuum system connections |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008092788A1 (en) * | 2007-02-01 | 2008-08-07 | Rudi Georg Bitsch | Cement applicator |
WO2010003716A1 (en) * | 2007-02-01 | 2010-01-14 | Rudi Georg Bitsch | Cement applicator having a molding cap |
DE102011050361A1 (en) * | 2011-05-13 | 2012-11-15 | Philip Kasten | Exchangeable instrument attachment for cementing instrument for insertion of bone cement by pressure cementing for shoulder joints, is designed screwable or mountable on instrument tip of cementing pipe of cementing instrument |
DE102011050361B4 (en) * | 2011-05-13 | 2017-11-16 | Philip Kasten | Instrument attachment on a cementing instrument and method for introducing bone cement by pressure cementing |
DE102015105102A1 (en) * | 2015-04-01 | 2016-10-06 | Aesculap Ag | Medical cementing system |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8122 | Nonbinding interest in granting licenses declared | ||
8139 | Disposal/non-payment of the annual fee |