EP1119443A1 - Dispositif de retenue pour vis - Google Patents

Dispositif de retenue pour vis

Info

Publication number
EP1119443A1
EP1119443A1 EP98944951A EP98944951A EP1119443A1 EP 1119443 A1 EP1119443 A1 EP 1119443A1 EP 98944951 A EP98944951 A EP 98944951A EP 98944951 A EP98944951 A EP 98944951A EP 1119443 A1 EP1119443 A1 EP 1119443A1
Authority
EP
European Patent Office
Prior art keywords
pin
central axis
screw
elastic element
section
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Withdrawn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
EP98944951A
Other languages
German (de)
English (en)
Inventor
Romano Mark
Philipp BÜSCHER
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.)
AO Technology AG
Original Assignee
Synthes AG Chur
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 Synthes AG Chur filed Critical Synthes AG Chur
Publication of EP1119443A1 publication Critical patent/EP1119443A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/005—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section
    • 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
    • A61B17/8875—Screwdrivers, spanners or wrenches
    • A61B17/8877—Screwdrivers, spanners or wrenches characterised by the cross-section of the driver bit
    • A61B17/888—Screwdrivers, spanners or wrenches characterised by the cross-section of the driver bit the driver bit acting on the central region of the screw head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
    • B25B23/108—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit the driving bit being a Philips type bit, an Allen type bit or a socket
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53909—Means comprising hand manipulatable tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53909—Means comprising hand manipulatable tool
    • Y10T29/53943—Hand gripper for direct push or pull
    • Y10T29/53948—Centrifugal separator

Definitions

  • the invention relates to a screw holder according to the preamble of claim 1.
  • the bone or, for example, a spinal column segment should be operated on without exposing the parts to be treated over a large area (minimally invasive technique). If the opening of the soft tissues is to be as small as possible, clamp pliers are no longer suitable for inserting bone or pedicle screws.
  • the invention seeks to remedy this.
  • the invention is based on the object of designing a screw holder which enables a bone or pedicle screw to be screwed in and out, the bone or pedicle screw being held in place by the instrument used to screw the screw in and out.
  • the screw holder consists of a longitudinal shaft, which is provided at one end with clamping means, by means of which the screw holder can be clamped into a motor-driven screwdriver or can also be easily accommodated in a handle.
  • a pin is attached, the cross section of which is designed such that the pin can be inserted into the opening in the screw cap provided for an instrument for screwing in and out the screw.
  • a spring is also attached to the pin, which enables the screw to be clamped tightly and the pin of the screw holder to be removed from the opening in the screw head after the screw has been screwed in or out.
  • the pin on the screw holder can have different cross-sectional shapes, for example the shape of a hexagon socket, corresponding to the opening in the screw head provided for the instrument for screwing in and unscrewing the screw.
  • the pin mentioned above has a polygonal cross section, the corners of a polygon being rounded and the sides being concave.
  • the spring can be a leaf spring or another elastic element, among other things, but is in the preferred embodiment of the screw holder according to the invention the small diameter of the mentioned pin of less than 2 mm can also be implemented as a simple spring wire, which can be angled.
  • the tongue can be inserted into a groove for the resilient part with a subsequent hole for holding the tongue.
  • the part of the tongue intended to hold the tongue can also be glued, soldered or clamped into the groove.
  • a spring which is embedded in a groove can be provided in an edge of the pin with a polygonal cross section running parallel to the longitudinal axis or in a side surface of the pin running parallel to the longitudinal axis.
  • FIG. 2 shows a front view of an embodiment of the device according to the invention
  • FIG. 3 shows a partial section through the embodiment of the device according to the invention shown in FIG. 2;
  • FIG. 4 shows a front view of a further embodiment of the device according to the invention.
  • FIG. 5 shows a partial section through the embodiment of the device according to the invention shown in FIG. 4.
  • the embodiment of the screw holder 7 according to the invention shown in FIG. 1 comprises a cylindrical shaft 1 with a central axis 5, a rear end 2 and a front end 21.
  • a clamping means 13 is attached to the rear end 2 concentrically with the central axis 5, whereby the screw holder 7 in a motor-driven screwdriver (not shown) or can be clamped in a handle.
  • a pin 4 is also mounted concentrically to the central axis 5.
  • the pin 4 has a smaller diameter than the cylindrical shaft 1 of the screw holder 7, so that the front end 21 of the cylindrical shaft 1 forms a shoulder 3.
  • the pin 4 has a cross section according to FIGS. 2 and 4 8, which is designed in such a way that the pin 4 can be inserted into the opening 14 provided in the screw head 16 for an instrument for screwing the screw 15 in and out.
  • FIGS. 2 and 3 show an enlargement of the pin 4 with a front end 6 and a rear end 12 adjoining the shoulder 3.
  • the spring 9 is also shown enlarged.
  • the cross section 8 of the pin 4 is polygonal, although the corners 10 are rounded are and thus rounded edges 20 parallel to the central axis 5 arise.
  • the side surfaces 11 of the pin 4, which extend parallel to the central axis 5, are concavely curved transversely to the central axis 5.
  • a groove 17, which runs parallel to the central axis 5, is provided along one of the concavely curved side surfaces 11.
  • a bore 18 running parallel to the central axis 5 is made in the pin, in which the spring 9 can be pressed in, so that the clamped part 22 of the spring 9 is located in the bore 18 while the angled part 23 of the spring 9 is in the Groove 17 runs.
  • the angled part 23 of the spring 9 projects transversely to the central axis 5 over the side surface 11 of the pin 4, so that a screw 15, the opening 14 provided for receiving an instrument for screwing the screw 15 in and out is pushed over the pin 4, is clamped by the spring 9 on the pin 4.
  • the embodiment of the screw holder 7 according to the invention shown in FIGS. 4 and 5 differs from the embodiment shown in FIGS. 2 and 3 only in that the groove 19 and the bore 18 aligned therewith are provided along an edge 20 of the pin 4 .

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Prostheses (AREA)
  • Clamps And Clips (AREA)

Abstract

Dispositif de retenue pour vis qui comprend une tige longitudinale (1), comportant un axe central (5), une extrémité postérieure (2) et une extrémité antérieure (21); et une cheville, reliée (4) à ladite extrémité antérieure (21) et comportant une extrémité antérieure (6) et une extrémité postérieure (12). La cheville (4) a une section (8) polygonale. Un élément élastique (24) est inséré dans la cheville de façon à se projeter devant la section (8), ce qui permet de maintenir fermement une vis (15) dont la tête (16) comporte des moyens (14) destinés à recevoir ladite cheville (4).
EP98944951A 1998-10-05 1998-10-05 Dispositif de retenue pour vis Withdrawn EP1119443A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH1998/000425 WO2000020174A1 (fr) 1998-10-05 1998-10-05 Dispositif de retenue pour vis

Publications (1)

Publication Number Publication Date
EP1119443A1 true EP1119443A1 (fr) 2001-08-01

Family

ID=4551358

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98944951A Withdrawn EP1119443A1 (fr) 1998-10-05 1998-10-05 Dispositif de retenue pour vis

Country Status (8)

Country Link
US (2) US7137322B2 (fr)
EP (1) EP1119443A1 (fr)
JP (1) JP2002526272A (fr)
AR (1) AR020704A1 (fr)
AU (1) AU9250098A (fr)
CA (1) CA2358060A1 (fr)
WO (1) WO2000020174A1 (fr)
ZA (1) ZA996314B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2637357A1 (fr) 2012-03-07 2013-09-11 ABB Research Ltd. Validation de l'accessibilité des nýuds d'un réseau d'un système de contrôle et d'automatisation industrielle

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2358060A1 (fr) * 1998-10-05 2000-04-13 Synthes (U.S.A.) Dispositif de retenue pour vis
CA2460626A1 (fr) * 2001-07-12 2003-01-23 Synthes (U.S.A.) Tournevis dote d'un porte vis
JP4280457B2 (ja) * 2002-04-18 2009-06-17 勝行 戸津 ねじ保持形ドライバービット及びねじとの組合せ
WO2003106110A1 (fr) 2002-06-13 2003-12-24 Synthes Ag Chur Tournevis muni d'un porte-vis
US7194935B1 (en) * 2006-05-16 2007-03-27 Hsi-Yung Li Hexagonal driving tool with pawl piece
US20080243135A1 (en) * 2007-03-30 2008-10-02 Robinson Randolph C Driver-Fixator System, Method, and Apparatus
US7475618B1 (en) 2007-10-15 2009-01-13 Darren Scott Pardue Screw gun extension and screw keeper
US8500748B2 (en) * 2009-09-25 2013-08-06 Wasaw Orthopedic, Inc. Tool and component engaging mechanism
US8459155B2 (en) 2010-09-03 2013-06-11 Smith & Nephew, Inc. Modified fastener and insertion tool
US8882775B2 (en) 2011-04-15 2014-11-11 DePuy Synthes Products, LLC Fixation assembly
WO2013052626A1 (fr) 2011-10-05 2013-04-11 The Unversity Of Akron Vis de réglage de sécurité réduisant les chocs destinée à être utilisée avec une construction chirurgicale
US9375830B2 (en) * 2013-03-15 2016-06-28 Spinesmith Partners, L.P. Screw retention mechanism for screw drivers
US10005174B2 (en) 2014-01-28 2018-06-26 Shyh-Ming Wang Anti-disengagement structure of a tool head for a fastener
US9314907B2 (en) * 2014-01-28 2016-04-19 Shyh-Ming Wang Anti-disengagement structure of a tool head for a fastener
FR3024834B1 (fr) * 2014-08-13 2021-10-29 In2Bones Outil chirurgical a canule, kit chirurgical, procede de fabrication et machine de fabrication d'un tel outil
EP3081275B1 (fr) * 2015-03-24 2019-11-13 Revell GmbH Systeme de liaison pour relier de maniere amovible des composants et un kit
US10646981B2 (en) * 2016-04-22 2020-05-12 Titan Spine, Inc. Screwdriver with screw retention mechanism
CN107717815A (zh) * 2016-08-10 2018-02-23 富泰华工业（深圳）有限公司 一种起子头及具有该起子头的电动起子
US10870188B2 (en) * 2017-08-14 2020-12-22 Ideal Industries, Inc. Screwdriver with force applying member
DE102019007955A1 (de) * 2019-11-17 2021-05-20 SolinPlan UG (haftungsbeschränkt) Verfahren zur Kombination von lösbaren formschlüssigen und kraftschlüssigen Halteelementen für die Verbindung zwischen Verbindungspartnern
CN111014777B (zh) * 2019-11-24 2021-03-19 黄思忠 钻尾螺丝钉钻
US12121268B2 (en) 2021-07-07 2024-10-22 Globus Medical, Inc. Modular orthopedic implants, instruments, and navigation methods

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951652A (en) * 1933-06-16 1934-03-20 Nicholas V Fedotoff Screw driver
US2013826A (en) * 1934-11-27 1935-09-10 Jacobson William Screw driver
US3286749A (en) * 1964-08-28 1966-11-22 Howard K Learned Fastener tool with fastener engaging means
DE1959601A1 (de) * 1968-11-29 1970-06-04 Hill Tore Lennart Haltewerkzeug
US3687179A (en) * 1969-08-06 1972-08-29 Katsuyuki Totsu Electrically operated screw driver
US4060114A (en) * 1974-07-03 1977-11-29 Ryuzo Matsushima Tightening device for threaded screw part
JPS5755019Y2 (fr) * 1974-07-03 1982-11-27
US5237893A (en) 1990-05-22 1993-08-24 Textron Inc. Driver with fastener retention means
DE9310668U1 (de) * 1992-08-17 1993-11-04 Leibinger GmbH, 79111 Freiburg Schraubendreher
CA2358060A1 (fr) * 1998-10-05 2000-04-13 Synthes (U.S.A.) Dispositif de retenue pour vis
US7080432B2 (en) * 2002-10-04 2006-07-25 Clyde Jewel Norwood Piston pin spiral or wire lock ring insertion tool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0020174A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2637357A1 (fr) 2012-03-07 2013-09-11 ABB Research Ltd. Validation de l'accessibilité des nýuds d'un réseau d'un système de contrôle et d'automatisation industrielle

Also Published As

Publication number Publication date
US7174615B2 (en) 2007-02-13
US7137322B2 (en) 2006-11-21
US20010022120A1 (en) 2001-09-20
CA2358060A1 (fr) 2000-04-13
WO2000020174A1 (fr) 2000-04-13
JP2002526272A (ja) 2002-08-20
AU9250098A (en) 2000-04-26
AR020704A1 (es) 2002-05-22
US20060254397A1 (en) 2006-11-16
ZA996314B (en) 2000-04-11

Similar Documents

Publication Publication Date Title
WO2000020174A1 (fr) Dispositif de retenue pour vis
EP1567073B1 (fr) Dispositif pour stabiliser des os
EP1006915B1 (fr) Plaque symetrique pour osteosynthese
DE69628757T2 (de) Mehrschichtverriegelungsvorrichtung für knochenbefestigungen
EP0954247B1 (fr) Dispositif pour connecter un support longitudinal avec une vis pediculaire
EP0921766B1 (fr) Dispositif pour chirurgie osseuse
DE69522755T2 (de) Querverbinder für Korrekturvorrichtungen der Wirbelsäule
DE19726754C2 (de) Implantat zur Fixierung von Knochenteilen und Werkzeug für dieses Implantat
DE69109817T2 (de) Blockierbares Knochenplattensystem.
EP0496851B2 (fr) Implant pour dispositif d'osteosynthese, notamment de correction de la colonne vertebrale
DE69713684T2 (de) Apparat zum Festhalten der Wirbelsäule
DE69534042T2 (de) Anpassbarer wirbelkörperersatz
WO2003034930A1 (fr) Dispositif de fixation osseuse et vis associee
EP1191891A1 (fr) Vis a os avec tete de vis constituees axialement de deux parties
EP1311198A1 (fr) Dispositif pour relier un element de fixation osseuse a une tige oblongue
DE9402839U1 (de) Vorrichtung zum Einrichten einer Wirbelsäule mit geschädigten Wirbeln
DE9016227U1 (de) Korrekturimplantat für die menschliche Wirbelsäule
EP1460952A1 (fr) Dispositif permettant de relier deux pieces a la maniere d'une articulation spherique
WO1997027812A1 (fr) Vis a introduire dans un os et outil permettant de l'en extraire
EP0786235B1 (fr) Implant pour fixation interne des vertèbres, et outil de coupe des vis pédiculaires
DE202005019646U1 (de) Schraubendreher für eine Innenprofilschraube
EP1513654B1 (fr) Tournevis muni d'un porte-vis
WO2003043511A1 (fr) Dispositif permettant d'assembler un support longitudinal et un moyen de fixation osseuse
EP1404492A1 (fr) Tournevis dote d'un porte vis
DE29611140U1 (de) Anordnung aus einem Schraubendreher und einer entsprechenden Schraube

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010321

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20010803

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20011214