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EP3331457A1 - Fraise osseuse en céramique - Google Patents

Fraise osseuse en céramique

Info

Publication number
EP3331457A1
EP3331457A1 EP16748111.8A EP16748111A EP3331457A1 EP 3331457 A1 EP3331457 A1 EP 3331457A1 EP 16748111 A EP16748111 A EP 16748111A EP 3331457 A1 EP3331457 A1 EP 3331457A1
Authority
EP
European Patent Office
Prior art keywords
broaching tool
cavity
cutting edges
rotation
base body
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Withdrawn
Application number
EP16748111.8A
Other languages
German (de)
English (en)
Inventor
Heinrich Wecker
Andreas Rempp
Mateusz Juszczyk
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 EP3331457A1 publication Critical patent/EP3331457A1/fr
Withdrawn legal-status Critical Current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
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1637—Hollow drills or saws producing a curved cut, e.g. cylindrical
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1635—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for grafts, harvesting or transplants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00831—Material properties
    • A61B2017/0088—Material properties ceramic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B2017/1602—Mills

Definitions

  • the invention relates to a milling broach for intraoperative extraction of the patient's own bone material with a base body rotating about an axis of rotation for attachment to a rotating tool carrier and at least one firmly connected to the main body cutting edge.
  • a metallic broaching tool for this purpose, which has a main body rotating about its axis of rotation for attachment to a rotating tool carrier, and at least one cutting edge fixedly connected to the main body is arranged on the main body.
  • a disadvantage of the known broaches is that it can come to tissue reactions with the broaching tool and thus there is an increased risk of infection and by friction when milling a thermal load on the bone.
  • the reamer should be reusable after sterilization.
  • the invention has for its object to provide a milling broaching tool according to the preamble of claim 1, which avoids the disadvantages mentioned.
  • the broach should receive the bone material inside and also have the opportunity to drain to an external device.
  • the base body is cylindrical and hollow and a first cavity formed encompassing that the cutting edge or all cutting in one piece with the Base body are formed and projecting from an end face of the base body extending in the direction of the axis of rotation of the body and enclose a second cavity, that the first cavity is connected to the second cavity for receiving and forwarding the cut bone material and the broaching tool made of a sintered ceramic material It prevents tissue reactions because sintered ceramic materials are bioinert. The risk of infection is much lower than with metallic broaching tools. Ceramic surfaces facilitate sterilization, making the reamer reusable. The execution of the broaching tool with the two internal cavities, which merge into one another, makes it possible to derive the bone material or the bone chips. This is particularly advantageous with an increased amount of bone material.
  • the hardness of the broaching tool is drastically increased over known metal broaching tools. This results in a longer life of the cutting edge and thus a clean cut.
  • the low friction leads to a lower thermal load of the bone. Tissue reactions are excluded.
  • the broaching tool preferably consists of a sintered oxide or nitride ceramic. These have proven themselves in joint surgery very well. In order to enable a less incisive incision, at least one of the cutting edges extends beyond the axis of rotation for dipping into the bone and thereby cuts over the axis of rotation.
  • the cutting edge or all of the cutting edges open into an annular tip with a through-hole and the through-hole is connected to the second hollow space.
  • the annular tip gives the blades the necessary support and makes it easier to cut a blade over the axis of rotation. So that a uniform cut is made during the milling process and there is no abrupt intervention from cutting edge to cutting edge, the cutting edges are bent in the direction of rotation of the broaching tool, thereby cutting only one subsection at the same time for all cutting edges. All edges are bent the same way. All cutting edges have the same contour.
  • a transverse bore is preferably arranged in the base body.
  • the broach has four blades. With four cutting edges a particularly uniform cut is possible. However, there are 1 to 6 cutting advantage, depending on the application.
  • reinforcement regions are preferably arranged behind the cutting edges of the cutting edges.
  • the reamer cuts with one or more cutting bones of varying density.
  • the thickness of the generated chips is adjusted by the geometry of the blades. Manipulated variables are the cutting edge height and cutting edge length.
  • the broach picks up the cut bone chips inside and can divert them to a connected to the tool hose-like element.
  • the broach is characterized by high hardness, high rigidity and biocompatibility. It should be made of sintered ceramic materials, preferably oxide or non-oxide ceramic.
  • the broach has a cylindrical body, which is hollow and designed as an interface to the tool carrier.
  • the cutting area is formed in a preferred embodiment conical inlet (hollow).
  • the tip has in one embodiment expiring blades and a through bore.
  • FIG 1 shows an inventive broaching tool in an outside view and Figure 2 from above, i. from the rotation axis 2.
  • the broach 1 consists of a cylindrical base body 3, which encloses a first cavity 5.
  • the main body 3 is open at the top and bottom.
  • a transverse bore 10 is arranged for fixing to a tool carrier, not shown here.
  • cutting 4 are arranged on the end face, which are formed integrally with the base body 3.
  • there are four cutting edges 4 which project from one of the end faces 6 of the main body 3 in the direction of the axis of rotation 2 of the main body 3 and enclose a second cavity 7.
  • the first cavity 5 in the base body 3 is connected to the second cavity 7 within the cutting edges 4.
  • the two cavities 5, 7 merge into each other for receiving and forwarding the cut bone material.
  • a curved slot 1 1 is arranged, whose longitudinal sides are formed by the cutting edges 4.
  • the cutting edges 4 are all of the same design, with one of the cutting edges 4 extending beyond the axis of rotation 2 for immersion in the bone, thus cutting over the axis of rotation 2.
  • the broaching tool 1 consists of a sintered ceramic material and preferably of a sintered oxide or nitride ceramic.
  • All blades 4 open into an annular tip 8, which has a through hole 9.
  • This through-hole 9 is connected to the second cavity 7 or is in this embodiment in this over.
  • the radial distance of Cutting 4 to the rotation axis 2 decreases steadily starting from the end face 6 to the top 8, so that the cutting edges 4 are approximately conical.
  • the cutting edges 4 are bent in the direction of rotation of the broaching tool 1 and cut thereby simultaneously innnner only a portion of the bone.
  • reinforcing regions 13 are arranged in the direction of rotation behind the cutting edges of the cutting edges 4.

Landscapes

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

Abstract

L'invention concerne un outil de fraisage (1) pour l'obtention, en cours d'intervention, de matière osseuse propre au patient, comprenant un corps de base (3) rotatif autour d'un axe de rotation (2) pour la fixation sur un porte-outil rotatif et au moins une lame (4) reliée de manière solidaire au corps de base (3). L'invention vise à éviter les réactions des tissus lors de l'utilisation de la fraise et ainsi un risque accru d'infection, et à éviter également une sollicitation thermique de l'os et à recueillir la matière osseuse à l'intérieur de la fraise et à la déposer sur un dispositif externe. Selon l'invention, le corps de base (3) a à cet effet une forme cylindrique entourant une première cavité (5), la lame (4) ou toutes les lames sont réalisées d'un seul tenant avec le corps de base (3) et se prolongent en dépassant d'une face frontale (6) du corps de base (3) dans le sens de l'axe de rotation (2) du corps de base (3) et entourent une deuxième cavité (7), la première cavité (5) est reliée à la deuxième cavité (7) pour recueillir et transférer la matière osseuse coupée et la fraise (1) est fabriquée en un matériau en céramique fritté.
EP16748111.8A 2015-08-04 2016-08-03 Fraise osseuse en céramique Withdrawn EP3331457A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015009857 2015-08-04
PCT/EP2016/068506 WO2017021433A1 (fr) 2015-08-04 2016-08-03 Fraise osseuse en céramique

Publications (1)

Publication Number Publication Date
EP3331457A1 true EP3331457A1 (fr) 2018-06-13

Family

ID=56611258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16748111.8A Withdrawn EP3331457A1 (fr) 2015-08-04 2016-08-03 Fraise osseuse en céramique

Country Status (8)

Country Link
US (1) US20180228499A1 (fr)
EP (1) EP3331457A1 (fr)
KR (1) KR20180038000A (fr)
CN (1) CN107847237A (fr)
BR (1) BR112018001982A2 (fr)
DE (1) DE102016214313A1 (fr)
RU (1) RU2018107744A (fr)
WO (1) WO2017021433A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230270436A1 (en) 2022-02-25 2023-08-31 Life Spine, Inc. Vertebral Disc Auger
CH721129A1 (de) * 2023-09-14 2025-03-31 Swiss Medical Instr Ag Verfahren zur Herstellung eines Innenrohrs für ein chirurgisches Schneidinstrument

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527695A1 (de) * 1995-07-28 1997-01-30 Fraunhofer Ges Forschung Verfahren zur Herstellung von keramischen oder pulvermetallurgischen Bauteilen mit einer schraubenförmigen Außenkontur und keramisches oder pulvermetallurgisches Bauteil mit schraubenförmiger Außenkontur
US20030097133A1 (en) * 2001-11-21 2003-05-22 Green James M. Attachable/detachable reaming head for surgical reamer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5330480A (en) * 1993-03-03 1994-07-19 Codman & Shurtleff, Inc. Surgical drill
JPH10512463A (ja) * 1994-10-24 1998-12-02 スミス アンド ネフュー インコーポレーテッド 開口した溝を有する中空の手術用カッタ
US7758581B2 (en) * 2005-03-28 2010-07-20 Facet Solutions, Inc. Polyaxial reaming apparatus and method
US7360608B2 (en) * 2004-09-09 2008-04-22 Baker Hughes Incorporated Rotary drill bits including at least one substantially helically extending feature and methods of operation
DE102005059864B4 (de) * 2005-12-15 2013-03-14 Grönemeyer Medical GmbH & Co. KG Orthopädischer Shaver
FR2967046A1 (fr) * 2010-11-10 2012-05-11 Tornier Sa Fraiseuse orthopedique de preparation osseuse, en particulier de preparation glenoidienne

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527695A1 (de) * 1995-07-28 1997-01-30 Fraunhofer Ges Forschung Verfahren zur Herstellung von keramischen oder pulvermetallurgischen Bauteilen mit einer schraubenförmigen Außenkontur und keramisches oder pulvermetallurgisches Bauteil mit schraubenförmiger Außenkontur
US20030097133A1 (en) * 2001-11-21 2003-05-22 Green James M. Attachable/detachable reaming head for surgical reamer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017021433A1 *

Also Published As

Publication number Publication date
BR112018001982A2 (pt) 2018-09-18
KR20180038000A (ko) 2018-04-13
CN107847237A (zh) 2018-03-27
WO2017021433A1 (fr) 2017-02-09
US20180228499A1 (en) 2018-08-16
RU2018107744A (ru) 2019-09-06
DE102016214313A1 (de) 2017-02-09

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