WO2019102249A1 - Tournevis, vis et système de tournevis - Google Patents

Tournevis, vis et système de tournevis Download PDF

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Publication number
WO2019102249A1
WO2019102249A1 PCT/IB2017/057280 IB2017057280W WO2019102249A1 WO 2019102249 A1 WO2019102249 A1 WO 2019102249A1 IB 2017057280 W IB2017057280 W IB 2017057280W WO 2019102249 A1 WO2019102249 A1 WO 2019102249A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
section
screw driver
driver
holding
Prior art date
Application number
PCT/IB2017/057280
Other languages
English (en)
Inventor
Jan Philip SANDMANN
Manfred Wieland
Original Assignee
Stryker European Holdings I, Llc
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 Stryker European Holdings I, Llc filed Critical Stryker European Holdings I, Llc
Priority to PCT/IB2017/057280 priority Critical patent/WO2019102249A1/fr
Publication of WO2019102249A1 publication Critical patent/WO2019102249A1/fr

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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
    • A61B17/56—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
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/8605—Heads, i.e. proximal ends projecting from bone
    • A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
    • A61B17/8615—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the central region of the screw head
    • 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
    • A61B17/8886—Screwdrivers, spanners or wrenches holding the screw head
    • A61B17/8888—Screwdrivers, spanners or wrenches holding the screw head at its central region
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated

Definitions

  • Screw driver screw and a screw driver system
  • the invention relates to a screw driver, a screw and a screw driver system that may apply a self-holding mechanism.
  • screw drivers include a split or divided bit adapted to be inserted in a screw driver slot of the screw.
  • various attempts have been made to strengthen screw holders, so that they can deliver a considerable torque necessary to set the screw tightly, or to loosen the screw, which has been previously set.
  • US 2,737,988 discloses a screw holding attachment for screw drivers having a rod-like shank and a wedge-shaped bit at the end of the shank.
  • a pair of resilient arms is connected extending longitudinally of the shank and a free end portion of each arm is formed to present a longitudinally extending bit.
  • the bits when extended, are normally disposed in close juxtaposition to be simultaneously insertable in a screw driver slot of a screw.
  • the bits on the arms will be moved transversely in opposite directions to engage a sidewall of the screw slot.
  • a fulcrum member is associated with each of the resilient arms comprising a pair of ears disposed respectively at extreme opposite lateral edges of the arm to impart a maximum torque to the arm.
  • US 5,169,400 discloses a bone screw comprising an externally threaded shaft in which a tool insertion channel is disposed at the top of the screw. Through the insertion channel, a pin closure is inserted and fixed by a detent connection.
  • a screw driver is presented.
  • the screw driver can be broadly applied where a holding of a screw with a second hand is unfavorable, e.g. when rotating a bone screw through tissue or a tissue protection cover into an intramedullary bone nail in a surgical operation environment.
  • the screw driver may comprise structural features which make the tool sturdy and adapted to deliver a maximum torque. Hence, the screw driver may ensure that the screw does not get lost but is safely handled.
  • the screw driver comprises a screw driver shaft with an insertion portion arranged at a distal end of the screw driver shaft.
  • the insertion portion is configured to be inserted into a recess arranged in a head of a screw at a proximal end of the screw body.
  • the insertion portion comprises a torque transmission section and a holding section.
  • the torque transmission section is configured to transfer torque from the screw driver to the screw, whereas the holding section is configured to hold the distal end of the screw driver shaft at the head of the screw.
  • the torque transmission section and the holding section are located separately from each other along a longitudinal axis of the screw driver.
  • the insertion portion is divided into two sections.
  • the first section is concerned with the torque transmission and the second section is related to the screw holding.
  • the two functionally separated sections are also locally deviated to maximize each function at the insertion portion of the screw driver.
  • the torque transmission section and the holding section may be arranged next to each other in contact with each other or distinct from each other.
  • the torque transmission section and the holding section may not be the same or the same portion of a component or may not be arranged at identical positions.
  • the screw driver according to the invention can be driven to fasten or loosen a screw without using a second hand to hold the screw. Accordingly, it is possible to rotate the screw driver with one hand which could be very useful in certain work conditions. Meanwhile, the applied torque can be fully transmitted to the screw, since the screw driver holds the screw at a separated location. Even if it is desired to apply a final torque for setting a screw tightly, or for initially loosening a tightly set screw, the holding section holds the screw firmly and the screw driver does not slip. Further, the head of the screw cannot easily break while screwing, since the insertion portion of the screw driver, includes a torque transmission section inserted into the recess of the screw.
  • the screw driver may be made from numerous materials.
  • the insertion portion, and more preferably the torque transmission section may comprise materials having strength and hardness characteristics to permit the transmission of torque to the screw.
  • materials having strength and hardness characteristics for instance, both steel and aluminium have been found to be effective as a suitable material for such application.
  • the torque transmission section and the holding section of the screw driver may be arranged adjacent to each other. Further, the holding section may be arranged closer to a distal tip of the screw driver than the torque transmission section. Accordingly, the torque transmission from the screw driver to the screw can be efficiently performed.
  • the holding section of the screw driver may comprise at least one elastic element with a diameter, which is in a cross section larger than a diameter of a bulk of the holding section.
  • the holding section is made of an elastic material, the screw driver may be easily inserted into a screw even if a diameter of a recess of the screw may be smaller than the diameter of the elastic element of the holding section.
  • the holding section may comprise at least two elastic arms. At least one of the elastic arms may comprise a locking nose configured to lock the screw at the screw driver. Further, at least two elastic arms may be spaced apart from each other by a circular opening.
  • the holding section When the holding section is inserted into the recess arranged in the head of the screw at the proximal end of the screw body, it therefore clamps against an inside wall of the screw.
  • the screw driver holds the screw as the elastic arms expand by applying an elastic force. Accordingly, the elastic arms resiliently grip the inside wall of the screw, thereby securing the screw in place.
  • the locking nose can be hold in a slot arranged in a recess of a screw.
  • the holding section of the screw driver may comprise at least one groove element with a diameter, which is in a cross section smaller than a diameter of a bulk of the holding section.
  • the groove element may extend around the entire circumference of the holding section or may extend only along a portion of the circumference of the holding section.
  • the groove element circumferentially extending around the holding section enables an even distribution of a grip connection between the screw driver and the screw. Further, the screw can be simply gripped by the groove element when inserting the screw driver into a recess of the screw.
  • the holding section of the screw driver comprises a simple structure which leads to a convenient handling for a user and a simple manufacturing of the screw driver.
  • the screw driver may comprise a through hole extending at least partially along a longitudinal axis of the screw driver.
  • the through hole allows, for instance, the passage of Kirschner wires if the screw is to be used in a surgical operation.
  • the torque transmission section of the screw driver may comprise a shaft with an outer structure, which mates with an inner structure of a corresponding screw head for transmission of torque.
  • the torque transmission section shaft of the screw driver may have a cross section of a polygonal shape.
  • the screw comprises a screw body and a recess arranged in a head of the screw at a proximal end of the screw body.
  • the recess is configured to receive an insertion portion arranged at a distal end of a screw driver, and comprises a first section and a second section.
  • the first section is configured to transfer torque from the screw driver to the screw
  • the second section is configured to hold the proximal end of the screw at the screw driver.
  • the first section and the second section are located separately from each other along a longitudinal axis of the screw.
  • the recess is divided by two sections.
  • the first section is concerned with the torque transmission and the second section is related to the screw holding. To maximize each function the first section and the second section are separately disposed within the recess.
  • the term“separate” means that the two functionally separated sections are also locally deviated.
  • the first section and the second section may be arranged next to each other. They can be in contact with each other or distinct from each other.
  • the first section and the second section may not be the same or the same portion of a component or may not be arranged at identical positions.
  • the screw provides a simple structure enabling a screw driver holding and screwing in a recess arranged in a head of the screw at a proximal end of the screw body. Therefore, there is no need of a holding means outside the screw when fastening or loosening the screw by the screw driver.
  • the screw can be inserted in a relatively inaccessible hole while using only one hand.
  • the applied torque to rotate the screw can be fully transmitted to the screw, since the screw driver holds the screw at a separated location. Even when applying a final torque for setting a screw tightly, or for initially loosening a tightly set screw, the screw driver does not slip since the screw driver holds the screw firmly. Further, the head of the screw cannot easily break during screwing, since the applied torque is directly transmitted in the first section of the recess.
  • the second section of the screw may comprise a slot configured to receive an elastic element of a holding section of the screw driver. Additionally, the slot may extend around the entire circumference of the second section.
  • the holding section of the screw driver can easily grip the slot of the screw. Since the slot is provided around the entire circumference of the second section of the screw, a locking nose of the screw driver in the holding section can uniformly grip the slot in the second section of the screw. As a result, the screw driver holds the screw firmly, as the elastic arms expand, and resiliently grip an inside wall of the screw, thereby securing the screw in place.
  • the second section of the screw comprises at least one protrusion configured to extend into a groove element of a holding section of the screw driver. Additionally, the protrusion may extend around the entire circumference of the second section.
  • the protrusion of the screw holds the screw driver via the groove element circumferentially extending around the holding section. Due to the simple configuration of the second section of the screw, a convenient handling for a user and a simple manufacturing of the screw can be realized.
  • an external thread is arranged at least partially along the screw body.
  • the first section may be an internal socket with a cross section of a polygonal shape.
  • the screw can be applied in a broad area.
  • the screw can be, for instance, a bone screw.
  • a screw driver system comprises a screw driver and a screw.
  • the screw driver comprises a screw driver shaft with an insertion portion arranged at a distal end of the screw driver shaft, and the screw comprises a screw body and a recess arranged in a head of the screw at a proximal end of the screw body.
  • the insertion portion of the screw driver is configured to be inserted into the recess of the screw, and comprises a torque transmission section and a holding section.
  • the recess of the screw comprises a first section and a second section.
  • the torque transmission section is configured to transfer torque from the screw driver to the first section of the screw
  • the holding section is configured to hold the distal end of the screw driver shaft at the second section arranged at the proximal end of the screw.
  • the torque transmission section and the holding section of the screw driver are located separately from each other along a longitudinal axis of the screw driver, and the first section and the second section of the screw are located separately from each other along a longitudinal axis of the screw.
  • the holding mechanism between the holding section of the screw driver and the second section of the screw may be self-holding.
  • the self-holding mechanism may be realized by an exact shape of the rotating area in the screw.
  • the countersection of the screw driver has flexible clamping elements, which elastically deform in the bore. As a result, a force-fitting connection may be established.
  • the self-holding mechanism of the screw driver system enables a convenient use, since any external support means to hold the screw is not required.
  • the screw driver further may comprise a through hole extending at least partially along a longitudinal axis of the screw driver.
  • An improved self- holding mechanism for a screw driver - screw interface has been developed to ensure a safe handling in e.g. a surgical operation environment.
  • the self- holding mechanism is realized in the screw through a bore in a rotation area.
  • a counterpart of the screw driver has flexible clamping elements, which resiliently deform in the bore.
  • the rotating and clamping mechanisms are spaced apart from each other in order to ensure a high torque transmission.
  • a through-going bore (such as a cannulation) can be realized.
  • a method of inserting a screw comprises following steps:
  • the insertion portion of the screw driver comprises a torque transmission section located separately from a holding section along a longitudinal axis of the screw driver, and the recess comprises a first section located separately from a second section along a longitudinal axis of the screw driver, and
  • the holding section may clamp against an inside wall of the recess of the screw.
  • elastic arms of the holding section may expand into contact against the inside wall of the recess.
  • a locking nose of the holding section may be held in a slot arranged in the recess.
  • the step of rotating in the insertion method may include rotating the screw through tissue or a tissue protection cover.
  • the step of rotating in the insertion method may include rotating the screw into an intramedullary bone nail.
  • the screw driver may be driven to fasten or loosen the screw with only one hand.
  • the screw driver may be driven to fasten or loosen the screw without using a second hand to hold the screw.
  • Fig. 1 shows a schematic drawing of an example of a screw driver.
  • Fig. 2 shows a detail of the screw driver of Fig. 1.
  • Fig. 3 shows a schematic drawing of an example of a screw.
  • Fig. 4 shows a detail of the screw of Fig. 3.
  • Fig. 5 shows a schematic drawing of a screw driver system including the screw driver and the screw of Figs. 1 to 4.
  • Fig. 6 shows a schematic drawing of another example of a screw driver.
  • Fig. 7 shows a detail of the screw driver of Fig. 6.
  • Figs. 8 and 9 show schematic drawings of a screw driver system including the screw driver of Figs. 6 and 7 and the screw of Figs. 3 and 4.
  • the present invention relates to a screw driver 1 and a screw 2 that apply a self- holding mechanism during screwing.
  • Figures 1 and 2 show schematically and exemplarily an embodiment of a screw driver 1 according to the invention.
  • the screw driver 1 comprises a screw driver shaft with an insertion portion 4 including a holding section 10 and a torque transmission section 20.
  • the insertion portion 4 is positioned at the distal end of the screw driver shaft.
  • the screw driver 1 may also comprise a through hole extending at least partially along a longitudinal axis of the screw driver 1.
  • the insertion portion 4 is configured to be inserted into a recess 5 arranged in a head of a screw 2 (see Figures 3 and 4).
  • the torque transmission section 20 is configured to transfer torque from the screw driver 1 to the screw 2 and the holding section 10 is configured to hold the distal end of the screw driver shaft at the head of the screw 2.
  • the holding section 10 and the torque transmission section 20 are separate from each other, yet arranged adjacent to each other at a tip of the screw driver 1.
  • the holding section 10 is disposed closer to the tip of the screw driver 1 than the torque transmission section 20, hence the holding section 10 is to be inserted deeper into the recess 5 of the screw 2 than the transmission section 20.
  • the holding section 10 of the screw driver 1 comprises a bulk 11 and at least one elastic element 12.
  • the diameter of the elastic element 12 is larger than the diameter of the bulk 11.
  • the elastic element 12 includes at least two elastic arms l2a, l2b.
  • the elastic arms l2a, l2b encompass a hollow recess within the screw driver 1, which extends in a longitudinal direction of the screw driver 1.
  • the elastic arms l2a, l2b further encompass a circular opening 15, which is circular when seen in a side view perpendicular to the longitudinal direction of the screw driver 1.
  • the circular opening 15 is arranged laterally at the bulk 1 1 of the holding section 10, whereas the hollow recess or gap between the elastic elements l2a, l2b is longitudinally arranged from the distal end of the screw driver 1 in direction of the torque transmission section 20.
  • the elastic element 12 bends or flexes resiliently as it travels along the recess 5.
  • At least one of the elastic arms l2a, l2b comprises a locking nose 13 configured to lock the screw driver 1 within the recess 5 of the screw 2.
  • the locking noses l3a, l3b are arranged symmetrically at the end of each elastic arm l2a, l2b, and are inclined or chamfered at a leading end of the holding section 10.
  • the inclination angle may be around 45°. Consequently, friction can be minimized when inserting the screw driver 1 into the recess 5 of the screw 2.
  • the torque transmission section 20 comprises a shaft 21 with an outer structure, which mates with an inner structure of a corresponding screw head, such as recess 5 for transmission of torque.
  • the torque transmission section shaft 21 may have a cross section of the same polygonal shape.
  • FIGS 3 to 5 schematically show a screw 2 and a screw driver system in which the screw driver 1 and the screw 2 are connected.
  • the screw 2 comprises a screw body 6 and a recess 5 arranged in a head of the screw 2 at a proximal end of the screw body 6. Further, the screw 2 has an external thread 3 arranged at least partially along the screw body 6. Through the recess 5, the insertion portion 4 of the screw driver 1 can be inserted.
  • the recess 5 comprises a first section 51 and a second section 52.
  • the first section 51 is configured to transfer torque from the screw driver 1 to the screw 2, whereas the second section 52 is configured to hold the proximal end of the screw 2 at the screw driver 1.
  • the first section 51 and the second section 52 are located separately from each other along a longitudinal axis of the screw 2.
  • the cross section of the first section 51 corresponds to the cross section of the torque transmission section shaft 21.
  • the first section 51 can be an internal socket with a cross section of a polygonal shape. Hence, the inner structure of the screw 2 may not be frayed while screwing, which leads to the maximum torque transmission.
  • the structure of the second section 52 is aligned with the structure of the holding section 10 of the screw driver 1 when the screw 2 and screw driver 1 are engaged.
  • the second section 52 of the screw 2 comprises a slot 53 extending around the entire circumference of the second section 52.
  • the slot 53 is configured to receive the locking noses l3a, l3b of the holding section 10 of the screw driver 1.
  • the diameter of the second section 52 corresponds to the diameter of the bulk 11 of the holding section 10, whereas the diameter of the slot 53 corresponds to the diameter of the locking noses 13 a, l3b.
  • the locking noses l3a, l3b face a bottleneck problem while passing through the second section 52 in the screw 2.
  • the elastic element 12 due to the resilient property of the elastic element 12 particularly supported by the circular opening 15, however, the elastic element 12 can be accordingly bent in the second section 52 and locked in the slot 53 to hold the screw 2 at a distal end of the screw driver 1. Consequently, the screw driver 1 holds the screw 2 without any external support element, which enables a self-holding mechanism and a comfortable one-hand operation of the screw driver system.
  • a holding section 10 of a screw driver 1 includes a bulk 110, for example in form of a cylinder, and at least one groove element 120 extending around the entire circumference of the holding section 10.
  • the diameter of the at least one groove element 120 is smaller than the diameter of the bulk 110.
  • FIG 8 and Figure 9 schematically show a screw driver system according to the other embodiment in which the screw driver 1 and a screw 2 are connected.
  • the screw 2 comprises a screw body 6 and a recess 5 arranged in a head of the screw 2 at a proximal end of the screw body 6. Further, the screw 2 has an external thread 3 arranged at least partially along the screw body 6. Through the recess 5, the insertion portion 4 arranged at a distal end of the screw driver shaft can be inserted.
  • the recess 5 comprises a first section 51 and a second section 52.
  • the first section 51 is configured to transfer torque from the screw driver 1 to the screw 2, whereas the second section 52 is configured to hold the screw 2 at a distal end of the screw driver 1.
  • the cross section of the first section 51 corresponds to the cross section of the torque transmission section shaft 21.
  • the first section 51 can be an internal socket with a cross section of a polygonal shape. Hence, the inner structure of the screw 2 may not be frayed while screwing, which leads to the maximum torque transmission.
  • the structure of the second section 52 is aligned with the structure of the torque transmission section shaft 21 of the screw driver 1.
  • the second section 52 of the recess 5 of the screw 2 comprises at least one protrusion 530 extending around at least a portion of the circumference of the second section 52.
  • the protrusion 530 is configured to extend into a groove element 120 of the holding section 10 of the screw driver 1.
  • the diameter of the second section 52 corresponds to the diameter of the bulk 110 of the holding section 10, whereas the diameter of the protrusion 530 corresponds to the diameter of the groove element 120. Consequently, the screw driver 1 holds the screw 2 without any external support element, which enables a self-holding mechanism and a comfortable one- hand operation of the screw driver system.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (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)
  • Neurology (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un tournevis et une vis qui appliquent un mécanisme d'auto-maintien. Le système de tournevis comprend des éléments structurels qui rendent l'outil robuste et adapté pour délivrer un couple maximal. Le tournevis comprend un arbre d'entraînement de vis avec une partie d'insertion disposée au niveau d'une extrémité distale de l'arbre d'entraînement de vis. La partie d'insertion est configurée pour être insérée dans un évidement disposé dans une tête d'une vis. La partie d'insertion comprend une section de transmission de couple et une section de maintien. La section de transmission de couple est configurée pour transférer le couple du tournevis à la vis, tandis que la section de maintien est configurée pour maintenir l'extrémité distale de l'arbre d'entraînement de vis au niveau de la tête de la vis. La section de transmission de couple et la section de maintien sont situées séparément l'une de l'autre le long d'un axe longitudinal du tournevis.
PCT/IB2017/057280 2017-11-21 2017-11-21 Tournevis, vis et système de tournevis WO2019102249A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2017/057280 WO2019102249A1 (fr) 2017-11-21 2017-11-21 Tournevis, vis et système de tournevis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2017/057280 WO2019102249A1 (fr) 2017-11-21 2017-11-21 Tournevis, vis et système de tournevis

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Publication Number Publication Date
WO2019102249A1 true WO2019102249A1 (fr) 2019-05-31

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210259747A1 (en) * 2019-04-26 2021-08-26 Warsaw Orthopedic Inc. Surgical instrument and methods of use
WO2022256599A1 (fr) * 2021-06-04 2022-12-08 K2M, Inc. Dispositif de retenue de vis de pression chirurgicale

Citations (11)

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Publication number Priority date Publication date Assignee Title
US2737988A (en) 1952-03-26 1956-03-13 Roy E Gearhart Screw holding attachment for screwdrivers
US5169400A (en) 1988-04-02 1992-12-08 Aesculap Ag Bone screw
US6423067B1 (en) * 1999-04-29 2002-07-23 Theken Surgical Llc Nonlinear lag screw with captive driving device
US20030074003A1 (en) * 2001-10-17 2003-04-17 Deslauriers Richard J. Orthopedic screw
WO2008122446A1 (fr) * 2007-04-10 2008-10-16 Stryker Trauma Gmbh Dispositif de fixation pour vis à os
WO2010093658A2 (fr) * 2009-02-10 2010-08-19 Synthes Usa, Llc Vis avec cannulation à diamètre variable et tournevis
US20110082506A1 (en) * 2009-10-02 2011-04-07 Spinefrontier, Inc Cervical plate assembly
US20110306984A1 (en) * 2010-06-14 2011-12-15 Sasing Jude L Tool and set screw for use in spinal implant systems
US20130030476A1 (en) * 2011-07-29 2013-01-31 Warsaw Orthopedic, Inc. Bone screw/driver assembly having surface roughness
WO2014108327A1 (fr) * 2013-01-10 2014-07-17 Straumann Holding Ag Élément de retenue élastique annulaire
WO2014204076A1 (fr) * 2013-06-19 2014-12-24 고려대학교 산학협력단 Dispositif d'insertion de capuchon de vis pédiculaire

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737988A (en) 1952-03-26 1956-03-13 Roy E Gearhart Screw holding attachment for screwdrivers
US5169400A (en) 1988-04-02 1992-12-08 Aesculap Ag Bone screw
US6423067B1 (en) * 1999-04-29 2002-07-23 Theken Surgical Llc Nonlinear lag screw with captive driving device
US20030074003A1 (en) * 2001-10-17 2003-04-17 Deslauriers Richard J. Orthopedic screw
WO2008122446A1 (fr) * 2007-04-10 2008-10-16 Stryker Trauma Gmbh Dispositif de fixation pour vis à os
WO2010093658A2 (fr) * 2009-02-10 2010-08-19 Synthes Usa, Llc Vis avec cannulation à diamètre variable et tournevis
US20110082506A1 (en) * 2009-10-02 2011-04-07 Spinefrontier, Inc Cervical plate assembly
US20110306984A1 (en) * 2010-06-14 2011-12-15 Sasing Jude L Tool and set screw for use in spinal implant systems
US20130030476A1 (en) * 2011-07-29 2013-01-31 Warsaw Orthopedic, Inc. Bone screw/driver assembly having surface roughness
WO2014108327A1 (fr) * 2013-01-10 2014-07-17 Straumann Holding Ag Élément de retenue élastique annulaire
WO2014204076A1 (fr) * 2013-06-19 2014-12-24 고려대학교 산학협력단 Dispositif d'insertion de capuchon de vis pédiculaire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210259747A1 (en) * 2019-04-26 2021-08-26 Warsaw Orthopedic Inc. Surgical instrument and methods of use
WO2022256599A1 (fr) * 2021-06-04 2022-12-08 K2M, Inc. Dispositif de retenue de vis de pression chirurgicale

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