DE2621125A1 - X:ray transparent surgical instruments - made from carbon fibre reinforced material, pref. synthetic resin - Google Patents
X:ray transparent surgical instruments - made from carbon fibre reinforced material, pref. synthetic resinInfo
- Publication number
- DE2621125A1 DE2621125A1 DE19762621125 DE2621125A DE2621125A1 DE 2621125 A1 DE2621125 A1 DE 2621125A1 DE 19762621125 DE19762621125 DE 19762621125 DE 2621125 A DE2621125 A DE 2621125A DE 2621125 A1 DE2621125 A1 DE 2621125A1
- Authority
- DE
- Germany
- Prior art keywords
- surgical instruments
- synthetic resin
- pref
- reinforced material
- carbon fibre
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 11
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 9
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract description 6
- 229910052799 carbon Inorganic materials 0.000 title abstract description 3
- 239000000835 fiber Substances 0.000 title description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 abstract description 3
- 239000010439 graphite Substances 0.000 abstract description 3
- 229920001568 phenolic resin Polymers 0.000 abstract description 3
- 229920006324 polyoxymethylene Polymers 0.000 abstract description 2
- 150000002118 epoxides Chemical class 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 239000012780 transparent material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 241001631457 Cannula Species 0.000 description 1
- 241000253999 Phasmatodea Species 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 210000003815 abdominal wall Anatomy 0.000 description 1
- 210000000013 bile duct Anatomy 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002350 laparotomy Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000011477 surgical intervention Methods 0.000 description 1
- 238000007669 thermal treatment Methods 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
-
- 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
- A61B2017/00902—Material properties transparent or translucent
Landscapes
- 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)
- Materials For Medical Uses (AREA)
- Reinforced Plastic Materials (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Chirurgische Instrumentesurgical instruments
Die Erfindung betrifft die Verwendung eines durch Kohlenstoffasern verstärkten Werks-to-ffs für chiturgische Instrumente.The invention relates to the use of a carbon fiber reinforced factory to ffs for chiturgical instruments.
Unter dem Begriff "chirurgische Instrumente" werden im folgenden ebenfalls prä- oder postoperative Hilfsmittel, wie z.B. Schienen, Gehbügel und dergleichen, verstanden. Die für chirurgische Eingriffe verwendeten Instrumente und Hilfsmittel, wie Messer, Pinzetten, Scheren, Wundhaken, Nadeln, Klammern, bestehen in der Regel aus Metall, das eine ausreichende mechanische Stabilität aufweist und leicht zu sterilisieren ist. Nachteile der Metallinstrumente sind das verhältnismäßig große Gewicht, die elektrische Leitfähigkeit sowie die Reflexion des auffallenden Lichtes, welches den Chirurgen blenden kann.The term "surgical instruments" is also used in the following pre- or post-operative aids such as splints, walking stirrups and the like, Understood. The instruments and aids used for surgical interventions, such as knives, tweezers, scissors, retractors, needles, staples, are usually made up made of metal, which has sufficient mechanical stability and easy to sterilize is. The disadvantages of metal instruments are that they are relatively large Weight, electrical conductivity and reflection of incident light, which can dazzle the surgeon.
Besonders störend ist schließlich das hohe Absorptionsvermögen für Röntgenstrahlen, wodurch intraoperative Röntgenaufnahmen erschwert werden, da die Metallinstrumente jeweils aus dem Aufnahmebereich entfernt werden müssen.Finally, the high absorption capacity for is particularly annoying X-rays, which make intraoperative X-rays difficult because the Metal instruments must be removed from the receiving area.
Es sind weiterhin chirurgische Instrumente, wie Wundhaken, Flachsonden und Spatel, aus Polyamid bekannt, welche die genannten Nachteile nicht aufweisen. Die Verwendung dieser Instrumente ist jedoch wegen der verhältnismäßig geringen Festigkeit und Steifigkeit von Polyamid begrenzt.They are also surgical instruments such as retractors and flat probes and spatulas, made of polyamide, which do not have the disadvantages mentioned. The usage however, this instrument is proportionate because of the low strength and stiffness limited by polyamide.
Der Erfindung liegt die Aufgabe zugrunde, chirurgische Instrumente und Hilfsmittel mit einer großen mechanischen Stabilität, geringem Gewicht, geringer elektrischer Leitfähigkeit, kleinem Reflexionsvermögen sowie geringem Absorptionsvermögen fän Röntgenstrahlen zu schaffen.The invention is based on the object of surgical instruments and aids with great mechanical stability, light weight, less electrical conductivity, low reflectivity and low absorption capacity start creating x-rays.
Zur Lösung der Aufgabe wird erfindungsgemäß vorgeschlagen, für Instrumente einen kohlenstoffaserverstärkten Werkstoff mit einer für Röntgenstrahlen durchlässigen Matrix zu verwenden. Nach einer bevorzugten Ausführung der Erfindung besteht die Matrix aus einem gehärteten Kunstharz.To achieve the object, it is proposed according to the invention for instruments a carbon fiber reinforced material with an X-ray transparent Matrix to use. According to a preferred embodiment of the invention, there is Hardened synthetic resin matrix.
Kohlenstoffasern, die durch Carbonisieren von gegebenenfalls zuvor thermisch oder katalytisch stabilisierten organischen Fasern, wie z.B. Rayon oder Polyacrylnitril hergestellt werden, zeichnen sich durch hohe Festigkeit und einen großen Elastizitätsmodul aus. Die Festigkeit beträgt beispielsweise 2 - 3 kN/mm , der Elastizitätsmodul etwa 200 - 300 kN/mm . Es ist bekannt, diese Fasern zur Verstärkung von härtbaren Kunstharzen, wie Epoxyd-, Polyester- oder Phenolformaldehydharzen zu verwenden. Die Kohlenstoffasern werden dazu in Form von Garnen, Tauen oder auch als Gewebe mit Kunstharz beschichtet und mehrere übereinandergestapelte Faserschichten in einer Preßform verdichtet. Die Harzmatrix wird dann durch Erhitzen auf etwa 100 - 200 0C gehärtet In der gleichen Weise werden ebenfalls Graphitfasern, die durch eine thermische Behandlung der Kohlenstofffasern bis etwa 3000°C entstehen, zur Verstärkung von Kunstharzen verwendet, Die Biegefestigkeit kohlenstoffaserverstärkter Kunstharze beträgt etwa 1 kN/mm2, der Elastizitätsmodul etwa 100 kN/mm2. Der Verbundwerkstoff übertrifft damit auch die mechanische Stabilität der bislang verwendeten Metallinstrumente. Da die Rohdichte des Werkstoffs nur etwa 1,6 g/cm³ beträgt, sind die Instrumente aus dem Werkstoff zudem wesentlich leichter als Instrumente aus Metall. Der Werkstoff ist praktisch ein Nichtleiter für elektrischen Strom und das Reflexionsvermögen ist sehr gering. Ebenso kann die Absorption von Röntgenstrahlen vernachlässigt werden, da das Absorptionsvermögen sowohl von Kohlenstoffasern als auch von der Matrix praktisch null ist.Carbon fibers made by carbonizing, if necessary, beforehand thermally or catalytically stabilized organic fibers, such as rayon or Polyacrylonitrile are produced, are characterized by high strength and a large modulus of elasticity. The strength is, for example, 2 - 3 kN / mm , the modulus of elasticity about 200 - 300 kN / mm. It is known to use these fibers Reinforcement of curable synthetic resins such as epoxy, polyester or phenol-formaldehyde resins to use. The carbon fibers are used in the form of yarns, ropes or also as a fabric coated with synthetic resin and several layers of fibers stacked on top of each other compressed in a mold. The resin matrix is then heated to about 100 - Hardened 200 0C In the same way, graphite fibers, caused by a thermal treatment of the carbon fibers up to about 3000 ° C, Used to reinforce synthetic resins, The flexural strength of carbon fiber reinforced Synthetic resins are around 1 kN / mm2, the modulus of elasticity around 100 kN / mm2. The composite This also surpasses the mechanical stability of the metal instruments used up to now. Since the bulk density of the material is only about 1.6 g / cm³, the instruments are made of the material is also much lighter than instruments made of metal. The material is practically a non-conductor for electrical current and reflectivity is very low. The absorption of X-rays can also be neglected, because the absorbency of both carbon fibers and the matrix is practical is zero.
Insbesondere eignen sich kohlenstoffaserverstärkter Kunststoff für scharfe und stumpfe Wundhaken, Rouxhaken, Weberhaken, Spekulum, Laparotomie-Rahmen, Bauchdeckenhalter, Flachsonden, Handgriffe für Meisel und dergleichen, Pinzetten, Klemmen aller Art, Steinlöffel, Führungssonden, Wundhaken nach Rocard, Kanülen aller Art, Spatel. Hilfsmittel aus diesem Werkstoff sind Schienen aller Art, Gehbügel und Gehstöcke sowie Gallengangendoprothesen.Carbon fiber reinforced plastics are particularly suitable for sharp and blunt retractors, roux hooks, weaver hooks, speculum, laparotomy frames, Abdominal wall holders, flat probes, handles for chisels and the like, tweezers, Clamps of all kinds, stone spoons, guide probes, Rocard retractors, cannulas of all Kind, spatula. Aids made from this material are rails of all kinds, walking stirrups and walking sticks and bile duct endoprostheses.
Als Matrix für den Werkstoff sind insbesondere härtbare Kunstharze geeignet, wie z.B. Epoxyd-, Polyester- und Phenolformaldehydharz, Vorteile werden ebenfalls mit anderen gegen Röntgenstrahlen durchlässigen Matrixmaterialien erzielt, wie z.B. Polyacetalharze oder auch Kohlenstoff bzw. Graphit.In particular, hardenable synthetic resins are used as the matrix for the material suitable, such as epoxy, polyester and phenol-formaldehyde resin, advantages also with other X-ray transparent matrix materials achieved, such as polyacetal resins or carbon or graphite.
2 Patentansprüche2 claims
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762621125 DE2621125A1 (en) | 1976-05-13 | 1976-05-13 | X:ray transparent surgical instruments - made from carbon fibre reinforced material, pref. synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762621125 DE2621125A1 (en) | 1976-05-13 | 1976-05-13 | X:ray transparent surgical instruments - made from carbon fibre reinforced material, pref. synthetic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2621125A1 true DE2621125A1 (en) | 1977-11-24 |
Family
ID=5977799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762621125 Ceased DE2621125A1 (en) | 1976-05-13 | 1976-05-13 | X:ray transparent surgical instruments - made from carbon fibre reinforced material, pref. synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2621125A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2227200A (en) * | 1988-11-16 | 1990-07-25 | Malcolm Charles Holbrook | Surgical clamping forceps |
| DE9100531U1 (en) * | 1991-01-17 | 1991-06-20 | Hartmann Schuhhaus Orthopädie GmbH, 1000 Berlin | Foot orthosis |
| GB2304580A (en) * | 1995-08-31 | 1997-03-26 | Jocelyn Asher Simon Brookes | Magnetic resonance-compatible needle |
| US7717945B2 (en) | 2002-07-22 | 2010-05-18 | Acumed Llc | Orthopedic systems |
-
1976
- 1976-05-13 DE DE19762621125 patent/DE2621125A1/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2227200A (en) * | 1988-11-16 | 1990-07-25 | Malcolm Charles Holbrook | Surgical clamping forceps |
| DE9100531U1 (en) * | 1991-01-17 | 1991-06-20 | Hartmann Schuhhaus Orthopädie GmbH, 1000 Berlin | Foot orthosis |
| GB2304580A (en) * | 1995-08-31 | 1997-03-26 | Jocelyn Asher Simon Brookes | Magnetic resonance-compatible needle |
| US7717945B2 (en) | 2002-07-22 | 2010-05-18 | Acumed Llc | Orthopedic systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8131 | Rejection |