DE102009009575A1 - Holding arm for retractor system utilized during brain surgery, has holding mechanism for spatula, where arm is formed from bar made of nitinol, which is bendable by hand and is fastenable at linkage by attachment mechanism - Google Patents
Holding arm for retractor system utilized during brain surgery, has holding mechanism for spatula, where arm is formed from bar made of nitinol, which is bendable by hand and is fastenable at linkage by attachment mechanism Download PDFInfo
- Publication number
- DE102009009575A1 DE102009009575A1 DE102009009575A DE102009009575A DE102009009575A1 DE 102009009575 A1 DE102009009575 A1 DE 102009009575A1 DE 102009009575 A DE102009009575 A DE 102009009575A DE 102009009575 A DE102009009575 A DE 102009009575A DE 102009009575 A1 DE102009009575 A1 DE 102009009575A1
- Authority
- DE
- Germany
- Prior art keywords
- arm
- retractor system
- spatula
- nitinol
- holding
- 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.)
- Ceased
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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
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
-
- 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
- A61B90/50—Supports for surgical instruments, e.g. articulated arms
-
- 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
- A61B90/50—Supports for surgical instruments, e.g. articulated arms
- A61B90/57—Accessory clamps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00946—Material properties malleable
-
- 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
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0813—Accessories designed for easy sterilising, i.e. re-usable
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pathology (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Die Erfindung betrifft einen Haltearm für ein Retraktorsystem nach dem Oberbegriff von Anspruch 1.The The invention relates to a retaining arm for a retractor system the preamble of claim 1.
Derartige Retraktorsysteme dienen in der Chirurgie bei Operationen zum Offenhalten des Operationsfeldes. In der Hirnchirurgie ist ebenso wie bei anderen komplizierten Operationen eine gute Sicht auf das Operationsfeld von entscheidender Bedeutung.such Retractor systems are used in surgery for keeping open of the surgical field. In brain surgery is just like other complicated operations a good view of the surgical field crucial.
Ein Retraktorsystem besteht dabei aus einem in alle Richtungen variablen Gestänge, das an einer Schiene fest verankert ist. An diesem Gestänge können Wundhaken verschiedener Form und Größe mit Klemmbacken in jeder beliebigen Position befestigt werden, wodurch der Zugang zum Operationsgebiet starr freigehalten wird.One Retractor system consists of a variable in all directions linkage, which is firmly anchored to a rail. Retractors can be attached to this linkage different shape and size with jaws be fastened in any position, allowing access is kept rigid to the operation area.
Häufig wird bei derartigen herkömmlichen Retraktorsystemen als flexibler Haltearm ein mehrgliedriger Halterarm, auch als Leyla-Arm bezeichnet, verwendet, in den dann die benötigten Elemente, wie beispielsweise Spatel eingesetzt werden. Ein solcher mehrgliedriger Haltearm zeichnet sich dadurch aus, dass er in sämtliche Raumrichtungen gebogen und in einer solchen gebogenen Stellung arretiert werden kann. Dazu besteht ein solcher mehrgliedriger Haltearm aus einzelnen gelenkartigen Elementen, die diese Verbiegungen ermöglichen. Zum Arretieren ist mittig durchgehend ein Zugdraht ähnlich dem Bowdenzug einer Fahrradbremse vorhanden, der mittels eines exzentrisch gelagerten Stellhebels angespannt wird und dadurch das System versteift. Bei gelöstem Stellhebel kann der mehrgliedrige Haltearm in allen Raumrichtungen verändert werden; durch Festdrehen des Stellknopfes bleibt der mehrgliedrige Haltearm unverrückbar stehen, kann aber immer noch von Hand etwas gebogen werden. Dies ist für die Neurochirurgie sehr vorteilhaft.Frequently becomes in such conventional retractor systems as a flexible holding arm a multi-unit holder arm, also as Leyla arm denotes, in which then the required elements, such as Spatula are used. Such a multi-membered holding arm draws characterized by the fact that in all Space directions bent and locked in such a bent position can be. For this purpose, there is such a multi-membered holding arm individual articulated elements that allow these deflections. To lock is centrally throughout a pull wire similar to the Bowden cable of a bicycle brake present by means of an eccentric stored lever is tense and thereby stiffened the system. With released lever the multi-unit holding arm can be changed in all spatial directions; by tightening the knob remains the mehrgliedrige arm unalterable stand, but can still be bent by hand something. This is for the neurosurgery very beneficial.
Aufgrund des vorstehend beschriebenen Aufbaus des herkömmlichen mehrgliedrigen Haltearms für ein Retraktorsystem aus den einzelnen gelenkartigen Elementen ist jedoch eine Reinigung fast unmöglich und Keime lassen sich relativ schwer wieder aus dem Inneren entfernen.by virtue of the above-described construction of the conventional multi-unit holding arm for a However, retractor system of the individual articulated elements is a cleaning almost impossible and germs are relatively difficult to remove from the interior.
Daher ist es Aufgabe der vorliegenden Erfindung, einen Haltearm für ein Retraktorsystem auszubilden, bei dem die vorstehend angeführten Probleme mit der Reinigung nicht mehr auftreten, obwohl alle vorstehend angeführten vorteilhaften Eigenschaften weiter erhalten bleiben.Therefore It is the object of the present invention to provide a retaining arm for a retractor system form, in which the above-mentioned problems with the cleaning no longer occur, although all the above-mentioned advantageous Properties continue to be preserved.
Erfindungsgemäß wird diese Aufgabe durch einen Haltearm für ein Retraktorsystem mit den Merkmalen nach Anspruch 1 gelöst.According to the invention this Task by a holding arm for a retractor system having the features of claim 1 solved.
Bei der erfindungsgemäßen Lösung wird statt dem herkömmlich verwendeten mehrgliedrigen Haltearm nur ein Stab aus beispielsweise Nitinol mit einem Durchmesser von 3 bis 4 mm eingesetzt. Das Material (Nitinol) des Stabs ist von Hand nahezu genauso gut zu verbiegen wie ein angespannter herkömmlicher mehrgliedriger Haltearm eines herkömmlichen Retraktorsystems. Im Gegensatz zum Stand der Technik ist aufgrund des erfindungsgemäßen Aufbaus des Haltearms als Stab die Reinigung aber völlig unkritisch.at the solution according to the invention takes place the conventional used multi-membered arm only one rod, for example Nitinol used with a diameter of 3 to 4 mm. The material (Nitinol) of the rod is almost as easy to bend by hand like a tense conventional one multi-limbed holding arm of a conventional retractor system. In contrast to the prior art is due to the structure of the invention the support arm as a staff cleaning but completely uncritical.
Zudem ist das Material (auch Memory-Metall genannt) des Stabs so „programmiert”, dass es bei über 100°C wieder in die „vorprogrammierte” Form zurückgeht. Dadurch nimmt der Stab des Haltearms, wenn er bei üblicherweise 134°C dampfsterilisiert wird, danach unabhängig von den während einer Verwendung erfolgten Verbiegungen seine ursprüngliche Form wieder an.moreover is the material (also called memory metal) of the staff so "programmed" that it over at 100 ° C again goes back to the "preprogrammed" form. As a result, the rod of the support arm, when it usually at Steam sterilized at 134 ° C, then independent from the while In one use, his original bowing was done Shape again.
Außerdem ist das ganze Retraktorsystem vorzugsweise aus Titan gefertigt, wodurch eine Verwendung auch bei Operationen in Verbindung mit einem Magnetresonanz-Tomograph (MRT) ermöglicht wird, mittels derer der Operateur immer weiß, wo er ist.Besides that is the whole retractor system preferably made of titanium, whereby a use also in operations in connection with a magnetic resonance tomograph (MRI) is made possible by means of which the surgeon always knows where he is.
Diese und weitere Aufgaben, Merkmale und Vorteile der Erfindung werden aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung in Verbindung mit der Zeichnung offensichtlich.These and other objects, features and advantages of the invention from the following description of a preferred embodiment the invention in conjunction with the drawing obvious.
Dabei zeigen:there demonstrate:
Eine
Ausführungsform
des erfindungsgemäßen Haltearms
für ein
Retraktorsystem ist in den
Die
Befestigungseinrichtung
Der
Stab
Wie
aus
Die
Halteeinrichtung
Die
Halteeinrichtung
Vorteilhafterweise ist das ganze Retraktorsystem, dessen Teil der Haltearm bildet, aus einer Titan-Legierung gefertigt, da dann eine Verwendung des Retraktorsystems bei Operationen, die eine Überwachung der Position mittels Magnetresonanz-Tomographie (MRT) erfordern, möglich ist.advantageously, is the whole retractor system, part of which forms the support arm, made of a titanium alloy, since then a use of the Retractor system in operations that monitor the position by means of Magnetic Resonance Imaging (MRI), possible is.
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009009575A DE102009009575A1 (en) | 2009-02-19 | 2009-02-19 | Holding arm for retractor system utilized during brain surgery, has holding mechanism for spatula, where arm is formed from bar made of nitinol, which is bendable by hand and is fastenable at linkage by attachment mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009009575A DE102009009575A1 (en) | 2009-02-19 | 2009-02-19 | Holding arm for retractor system utilized during brain surgery, has holding mechanism for spatula, where arm is formed from bar made of nitinol, which is bendable by hand and is fastenable at linkage by attachment mechanism |
Publications (1)
Publication Number | Publication Date |
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DE102009009575A1 true DE102009009575A1 (en) | 2010-08-26 |
Family
ID=42356606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102009009575A Ceased DE102009009575A1 (en) | 2009-02-19 | 2009-02-19 | Holding arm for retractor system utilized during brain surgery, has holding mechanism for spatula, where arm is formed from bar made of nitinol, which is bendable by hand and is fastenable at linkage by attachment mechanism |
Country Status (1)
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014095336A1 (en) * | 2012-12-20 | 2014-06-26 | MAQUET GmbH | Instrument holder |
US10072793B2 (en) | 2012-12-20 | 2018-09-11 | MAQUET GmbH | Medical holding arm |
JP2022110233A (en) * | 2021-01-18 | 2022-07-29 | 順治 今西 | Instrument for brain surgery |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4867404A (en) * | 1988-05-16 | 1989-09-19 | The United States Of America As Represented By The Department Of Health And Human Services | Flexible holder for a cystoscope or the like |
JPH05305098A (en) * | 1992-04-28 | 1993-11-19 | Marui Ika:Kk | Universal brain spatula fixing unit |
WO1997040738A1 (en) * | 1996-04-26 | 1997-11-06 | Genzyme Corporation | Coronary stabilizing retractor |
-
2009
- 2009-02-19 DE DE102009009575A patent/DE102009009575A1/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4867404A (en) * | 1988-05-16 | 1989-09-19 | The United States Of America As Represented By The Department Of Health And Human Services | Flexible holder for a cystoscope or the like |
JPH05305098A (en) * | 1992-04-28 | 1993-11-19 | Marui Ika:Kk | Universal brain spatula fixing unit |
WO1997040738A1 (en) * | 1996-04-26 | 1997-11-06 | Genzyme Corporation | Coronary stabilizing retractor |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014095336A1 (en) * | 2012-12-20 | 2014-06-26 | MAQUET GmbH | Instrument holder |
US9918795B2 (en) | 2012-12-20 | 2018-03-20 | MAQUET GmbH | Instrument holder |
US10072793B2 (en) | 2012-12-20 | 2018-09-11 | MAQUET GmbH | Medical holding arm |
JP2022110233A (en) * | 2021-01-18 | 2022-07-29 | 順治 今西 | Instrument for brain surgery |
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Date | Code | Title | Description |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |