EP1171401A1 - Instruments chirurgicaux - Google Patents

Instruments chirurgicaux

Info

Publication number
EP1171401A1
EP1171401A1 EP00920688A EP00920688A EP1171401A1 EP 1171401 A1 EP1171401 A1 EP 1171401A1 EP 00920688 A EP00920688 A EP 00920688A EP 00920688 A EP00920688 A EP 00920688A EP 1171401 A1 EP1171401 A1 EP 1171401A1
Authority
EP
European Patent Office
Prior art keywords
bio
inert material
compatible
medical
tool
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
Application number
EP00920688A
Other languages
German (de)
English (en)
Inventor
Ralf-Peter Franke
Michael Fripan
Wolfgang Burger
Herbert Richter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ceramtec GmbH
Original Assignee
Ceramtec GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ceramtec GmbH filed Critical Ceramtec GmbH
Publication of EP1171401A1 publication Critical patent/EP1171401A1/fr
Ceased legal-status Critical Current

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
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/3211—Surgical scalpels, knives; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613—Component parts
    • A61B17/1615—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14—Surgical saws ; Accessories therefor
    • 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
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
    • A61F2310/00598—Coating or prosthesis-covering structure made of compounds based on metal oxides or hydroxides
    • A61F2310/00604—Coating made of aluminium oxide or hydroxides
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
    • A61F2310/00598—Coating or prosthesis-covering structure made of compounds based on metal oxides or hydroxides
    • A61F2310/00634—Coating made of zirconium oxide or hydroxides
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389—The prosthesis being coated or covered with a particular material
    • A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
    • A61F2310/00856—Coating or prosthesis-covering structure made of compounds based on metal nitrides
    • A61F2310/00874—Coating made of silicon nitride

Definitions

  • the present invention relates to medical instruments, processes for their production and their use.
  • iron for example on fibroblasts.
  • About 30% of the so-called alternate operations are mainly required due to particles in the periprosthetic tissue, which are responsible for the loosening of the implants / prostheses ("particle disease").
  • Iron on the one hand, an essential element for the organism, on the other hand, exercises in the vicinity of implants / Prostheses obviously have massive adverse effects, for example on the ingrowth behavior of osteosynthesis plates, implants, prostheses, screws, etc.
  • the present invention has therefore set itself the goal of safely avoiding iron abrasion during operations.
  • An object of the present invention was therefore to provide tools and instruments which do not cause iron abrasion in surgery, when used in operations, for example when working on bones, when inserting implants, in order to thereby prevent osteolytically active iron in the tissue.
  • the object on which the present invention is based was achieved according to the invention by the use of biocompatible bio-inert materials for the production of medical / surgical instruments or by the use of the medical / surgical instruments made from biocompatible bio-inert materials during operations.
  • medical / surgical instruments made of bio-compatible bio-inert materials are provided.
  • biocompatible bio-inert materials preferably include ceramics.
  • examples include high-strength technical ceramics, such as those based on aluminum oxide, zirconium oxide or silicon nitride. So-called Y-TZP ceramics or ZPTA ceramics are particularly preferred.
  • ZPTA ceramics consist of a matrix material, which consists of an aluminum oxide / chromium oxide mixed crystal and is platelet-reinforced “in situ”. Such ceramics are described, for example, in EPA O 542 815.
  • Such ceramics have long been known in medical technology. They include the ceramics from which implants are made, for example, and which are sold by the applicant under the names Biolox ® and Ziolox ® .
  • These high-strength technical ceramics can be used, for example, to produce scalpels, scissors, saws, drills, taps, centering tools, drill bushes, templates and similar instruments.
  • the ceramics required for these instruments are produced in a manner known per se to the person skilled in the art. It should be noted, however, that the ceramics required for these instruments for use in medicine or surgery according to the invention should be sharp-edged and have no phase, as when using ceramics as a tool for machining metal.
  • a drill according to the invention is obtained, for example, by first producing a cylinder, for example from a ceramic according to EPA 0 542 815, into which the contour required for use as a cutting instrument is then ground.
  • Figure 1 shows drills made in this way.
  • a ceramic close to the final shape by injection molding or by the so-called DCC process, which is then reworked accordingly.
  • the green body is made directly from the suspension.
  • the ceramic mixture with a solids content of more than 50% by volume is ground in an aqueous suspension.
  • the pH of the mixture should be adjusted to 4 - 4.5.
  • urea and a quantity of the enzyme urease which is suitable for breaking down the urea, are added before this suspension is poured into a mold. Due to the enzyme-catalyzed urea decomposition, the pH of the suspension shifts to 9, the suspension coagulating.
  • the green body produced in this way is dried and sintered after removal from the mold.
  • the sintering process can be carried out without pressure, but pre-sintering, followed by subsequent hot isostatic post-compression, is also possible. Further details on this method (DCC method) are disclosed in WO 94/02429 and in WO 94/24064, to which express reference is made.
  • a scalpel according to the invention or a pair of scissors according to the invention can in principle also be obtained according to DE 43 13 305, the Cutting blades of the scissors according to the invention can have both different and the same hardness.
  • the appearance, the shape, the geometry, the size of the medical / surgical instruments according to the invention can correspond to the medical / surgical instruments previously used.
  • biocompatible bio-inert materials for the production of medical / surgical instruments or the use of the instruments / tools consisting of biocompatible bio-inert materials during operations makes it possible for the first time to reliably avoid the introduction of iron-containing particles into the tissue.
  • the medical / surgical instruments according to the invention can thus be used, for example, to avoid operation-related osteolytic iron-containing abrasion particles when processing bones.
  • the medical / surgical instruments according to the invention have extremely high wear resistance and correspondingly high mechanical properties. It is also advantageous that the cutting characteristic of the medical / surgical instruments according to the invention is significantly better than the cutting characteristic of conventional instruments of the same geometry.
  • Figure 2 shows the comparison between a conventional drill made of metal and a drill according to the invention made of bio-compatible bio-inert ceramic when used in the bone. One reason for this is the surface of the ceramics used according to the invention. While it is known to be with conventional medical / surgical instruments
  • Table 1 and Figure 3 show the comparison of two drills according to the invention with a conventional drill of the same geometry made of metal when used in the bone.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)

Abstract

L'invention concerne l'utilisation de matériaux biocompatibles et bio-inertes pour la production d'instruments médicaux/chirurgicaux. L'invention concerne également des instruments médicaux/chirurgicaux en matériaux biocompatibles et bio-inertes, des outils en matériaux biocompatibles et bio-inertes utilisables en tant qu'instruments médicaux/chirurgicaux ainsi que l'utilisation en chirurgie d'outils en matériaux biocompatibles et bio-inertes.
EP00920688A 1999-04-11 2000-04-11 Instruments chirurgicaux Ceased EP1171401A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19916149 1999-04-11
DE19916149 1999-04-11
PCT/EP2000/003240 WO2000061517A1 (fr) 1999-04-11 2000-04-11 Instruments chirurgicaux

Publications (1)

Publication Number Publication Date
EP1171401A1 true EP1171401A1 (fr) 2002-01-16

Family

ID=7904086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00920688A Ceased EP1171401A1 (fr) 1999-04-11 2000-04-11 Instruments chirurgicaux

Country Status (5)

Country Link
US (1) US20070276389A1 (fr)
EP (1) EP1171401A1 (fr)
AU (1) AU4117400A (fr)
DE (1) DE10017952A1 (fr)
WO (1) WO2000061517A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20308626U1 (de) * 2003-06-03 2004-10-14 Hausmann, Thomas Chirurgischer Bohrer
DE102009035971B4 (de) * 2009-08-04 2013-01-17 Heraeus Precious Metals Gmbh & Co. Kg Elektrische Durchführung für eine medizinisch implantierbare Vorrichtung
DE102009035972B4 (de) * 2009-08-04 2011-11-17 W.C. Heraeus Gmbh Cermethaltige Durchführung für eine medizinisch implantierbare Vorrichtung
DE102010006690B4 (de) 2010-02-02 2013-03-28 Heraeus Precious Metals Gmbh & Co. Kg Verfahren zum Herstellen einer elektrischen Durchführung, elektrische Durchführung sowie implantierbare Vorrichtung
DE102010006689B4 (de) * 2010-02-02 2013-04-18 Heraeus Precious Metals Gmbh & Co. Kg Verfahren zum Herstellen einer elektrischen Durchführung, elektrische Durchführung sowie implantierbare Vorrichtung
US9478959B2 (en) 2013-03-14 2016-10-25 Heraeus Deutschland GmbH & Co. KG Laser welding a feedthrough
US9431801B2 (en) 2013-05-24 2016-08-30 Heraeus Deutschland GmbH & Co. KG Method of coupling a feedthrough assembly for an implantable medical device
US9403023B2 (en) 2013-08-07 2016-08-02 Heraeus Deutschland GmbH & Co. KG Method of forming feedthrough with integrated brazeless ferrule
US9504841B2 (en) 2013-12-12 2016-11-29 Heraeus Deutschland GmbH & Co. KG Direct integration of feedthrough to implantable medical device housing with ultrasonic welding
US9610451B2 (en) 2013-12-12 2017-04-04 Heraeus Deutschland GmbH & Co. KG Direct integration of feedthrough to implantable medical device housing using a gold alloy
US9610452B2 (en) 2013-12-12 2017-04-04 Heraeus Deutschland GmbH & Co. KG Direct integration of feedthrough to implantable medical device housing by sintering
US20160022879A1 (en) * 2014-07-24 2016-01-28 Jared Ruben Hillel FORAN Hypoallergenic orthopedic surgical instruments and methods
EP4226968A1 (fr) 2020-02-21 2023-08-16 Heraeus Medical Components, LLC Ferrule pour boîtier de dispositif médical non planaire
EP4230258A1 (fr) 2020-02-21 2023-08-23 Heraeus Medical Components, LLC Ferrule dotée d'une entretoise de réduction des contraintes pour dispositif médical implantable

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH444376A (fr) * 1965-03-15 1967-09-30 Stomatol Sandhaus Sami Dr Med Implant pour la chirurgie de l'os
US3834265A (en) * 1973-02-16 1974-09-10 Gillette Co Ceramic cutting instruments
US4531555A (en) * 1983-01-19 1985-07-30 Toray Industries, Inc. Yarn cutter for shuttleless loom
KR0184846B1 (ko) * 1990-08-06 1999-05-01 볼프람 프리센 소결성형체와 그 이용
FR2702164B1 (fr) * 1993-03-01 1995-06-02 Sylvain Bordes Foret pour la pose d'un implant dentaire notamment.
DE4313305C2 (de) * 1993-04-23 1995-06-01 Cerasiv Gmbh Schneidwerkzeug
DE19652097A1 (de) * 1996-12-14 1998-06-18 Amann & Tritt Gmbh Chirurgisches Instrument
US5879406A (en) * 1997-07-15 1999-03-09 Saint-Gobain Industrial Ceramics, Inc. Artificial joint bioprosthesis for mitigation of wear
US6132427A (en) * 1998-09-21 2000-10-17 Medicor Corporation Electrosurgical instruments

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0061517A1 *

Also Published As

Publication number Publication date
DE10017952A1 (de) 2000-12-14
US20070276389A1 (en) 2007-11-29
WO2000061517A1 (fr) 2000-10-19
AU4117400A (en) 2000-11-14

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