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WO2013015754A1 - Vis de compression double - Google Patents

Vis de compression double Download PDF

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Publication number
WO2013015754A1
WO2013015754A1 PCT/TR2012/000075 TR2012000075W WO2013015754A1 WO 2013015754 A1 WO2013015754 A1 WO 2013015754A1 TR 2012000075 W TR2012000075 W TR 2012000075W WO 2013015754 A1 WO2013015754 A1 WO 2013015754A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
screw body
bone
fixation piece
distance
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
PCT/TR2012/000075
Other languages
English (en)
Inventor
Olday YILMAZ
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2013015754A1 publication Critical patent/WO2013015754A1/fr
Anticipated expiration legal-status Critical
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
    • 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 or setting implements
    • 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
    • A61B17/8625—Shanks, i.e. parts contacting bone tissue
    • A61B17/863—Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • 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
    • A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/686—Plugs, i.e. elements forming interface between bone hole and implant or fastener, e.g. screw
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • 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
    • A61B17/8645—Headless screws, e.g. ligament interference screws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • 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

Definitions

  • the present invention relates to compression screws used for joining two bones in fractures by eliminating the gap between two fractured bones; and application method thereof in the fractured bone .
  • bone nails known as intramedullary nails or certain screws are used in orthopedic and trauma surgeries for joining the bones in long bone fractures.
  • An interlocking compression screw is disclosed in the utility model document TR 2010 08521.
  • screws used for joining fractured bones are compression screws. These screws are provided with threads at a certain distance from the tip part of ⁇ the screw body and have a structure with threads at a certain distance from the head part where the screw head will be affixed and screw will be turned. Screw head in the form of a hollow nut, which is provided with threads in the inner and outer part, is affixed onto the threads at the head part of these screws.
  • screw head being affixed at a certain distance in the head part of the screw body of the existing screws, is placed so as to hold the two parts of bone, which is split into two pieces through fracturing. Screw body is firmly fixed by being anchored to the bone through the threads thereof.
  • the screw body is rotated around its own axis by means of the threads thereon with the special screwdriver, which can hold onto the back of the screw head and head part of the screw body provided in the center of the screw head at the same time, it pulls the screw body onto itself and screw head is also fastened by resting against the bone.
  • the bone on the other side of fracture gap is pulled back in the same direction with the screw body and the fracture gap is closed.
  • the head part of the screw body often remains out a certain amount and this creates difficulties for both the patient and the physician implementing it.
  • the screw head which is set at an approximate distance on the screw body without knowing the distance between the fractured bones in advance, is inserted into the bone and as a result the screw head certainly remains out a certain amount after the screw body is retracted by a distance for joining the bones with the screwdriver.
  • the distance between the threads provided on the screw head and screw body are the same in the currently used screw structures. And this, in turn, prevents making up the necessary precise adjustment for closing the fracture gap.
  • desired compression can not be produced due to the structure of the screwdriver and the short distance in the workspace during the compression of the compression washer provided on the screw head and it doesn't allow for calculating the amount of compression to be made.
  • Another occurring problem is that the desired compression by means of the screw tightening head can not be produced as the said head leaves the thread area after being rotated two turns due to the shortness of the tightening head.
  • the compression nut provided on the upper part of the screw as fixation piece (2) can not meet the desired compression amount during the implementation due to the screwdriver and the application method thereof, moreover, it doesn't allow for setting the predetermined compression distance on the screw before the implementation. At least 6 mm of compression can be produced by means of the application method described and the product used according to the present invention when compared with the previous products and methods.
  • the double compression screw and application method thereof according to the invention is achieved by producing the compression by means of the screw body instead of the screw head in the application according to the invention.
  • the distance of compression can be set outside and the area to be compressed can be planned before the operation. Besides, insertion of the screw in one goes with one screwdriver and removal thereof from its place are facilitated due to the structure of the double compression screw according to the invention.
  • the purpose of the invention is to provide exact anatomical placement for the protection of the joint surface especially in the intra-articular fractures or fractures close to the joint.
  • Another purpose of the invention is to enable complete burial of the head part of the screw body, which is placed in the fractured bones, within the bone; to prevent it from remaining outside .
  • a further purpose of the invention is to perform and end the procedure with a much smaller incision compared to the current applications .
  • a further purpose of the invention is to enable setting the desired distance outside and planning of the area to be compressed before the operation.
  • Compression is performed by means of determining the measurement of the distance between the fractured bones and tightening the screw head by the determined distance.
  • a further purpose of the invention is to facilitate the insertion of the screw in one go with one screwdriver due to the structure of the screw.
  • Figure 1 Side view of mounted screw body and fixation piece in vertical position.
  • Figure 2 Cross view of mounted screw body and fixation piece.
  • Figure 3 Sectional front view of fixation piece mounted on screw body.
  • Figure 4 Side view of the fractured bone of ankle.
  • Figure 5 View of double compression screw placed within fractured ankle bones.
  • Figure 6 View of double compression screw joining fractured ankle bones.
  • the double compression screw according to the invention is characterized in that it, as shown clearly in Figure 1, comprises screw body tip part threaded section (1.1), which enables superior holding of the screw body (1) when inserted in the bone structure; screw body head part threaded section (1.2), which aids in the movement of the screw within the bone during the compression operation at the screw body head part; screw body head part (1.3), which is the section in the screw body (1) where the screwdriver holds; fixation piece (2), which provides anchoring of the screw within the bone during the ' rotation of the screw for joining the fractured bones, with inner and outer parts thereof having threaded structure, which can be moved forwards by being rotated clockwise and backwards by being rotated counter-clockwise around its own axis over the screw body head part threaded section (1.2) by means of the threads therein and hence provides the insertion of the screw body into the bone and anchoring of the said screw; and fixation piece head part (2.1) on which the outer part of the special screwdriver, used for providing the movement of the fixation piece,
  • the fixation piece (2) provided on the screw body head part threaded section (1.2) will advance more rapidly than the screw body tip part threaded section (1.1) thanks to the screw structure, which is formed by having the distance between two threads in the tip part (1.4) of the double compression screw described in the said invention as, for instance, 1 unit; the distance between two threads in the head part threaded section of the said screw as 0.5 unit; and the distance between two threads on the fixation piece as 1 unit.
  • the distance advanced by the threaded part of the fixation piece (2) within the bone is half of the distance advanced by the screw body moving forwards when the alien tip of the screwdriver is rotated one turn after it is fixed on the screw body head part (1.3) while the outer tip of the screwdriver holds the fixation piece (2) .
  • Fractured bone number 1 advances towards fractured bone number 2 and the gap is closed, screw body doesn't remain out of the bone.
  • the application method of the double compression screw according to the invention within the fractured bone comprises the following process steps:
  • the path through which the double compression screw will pass is opened by means of a wire; Then, the cannulated drill is sent into the bone through the same path and forms the cavity where the screw will be placed and fastened;
  • the screw length to be implemented is measured by means of a screw gauge
  • the cavity where the screw head will be placed is formed by using a proximal reamer
  • the gap distance in the fractured area is determined based on the x-ray film taken before the operation and this measurement is set by rotating the fixation piece in the forward direction on the threads of the screw body head part ;
  • Double compression screw is placed so as to be inserted into the fractured bone number 1 and fractured bone number 2, passing through the gap in between them, after the fixation piece is fixed on the screw body, fixation piece is buried in the bone number 1; ⁇
  • Screwdriver is rotated clockwise by means of affixing the outer part of the screwdriver on the fixation piece (2) and at the same time fixing the alien tip of the screwdriver on the screw body head part (1.3);
  • Pushing movement in the forward direction is achieved by means of the screwdriver, which rotates the screw body and fractured bone number 1 (3) approaches fractured bone number 2 ( 4 ) ;
  • Compression is produced through the screw body
  • the screw body advances 2 units by the screwdriver motion while the fixation piece advances 1 unit on the head part of the screw body.
  • compression can be produced from the screw body and not from the fixation piece, compression distance of the screw can exceed 10 mm and most importantly the compression distance on the screw can be set before the operation.
  • At least 6 mm of compression can be produced by means of the application method described and the product used according to the present invention when compared with the previous products and methods.

Landscapes

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

Abstract

La présente invention concerne une structure filetée des parties de pointe et de tête d'une vis de compression double utilisée pour joindre deux os dans des fractures en éliminant l'écartement entre deux os fracturés; et un procédé pour son application susceptible d'annuler l'écartement de la fracture en plaçant ladite vis à l'intérieur de l'os sans laisser émerger aucune partie du corps de la vis à l'extérieur pendant l'opération.
PCT/TR2012/000075 2011-05-11 2012-05-11 Vis de compression double Ceased WO2013015754A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2011/04622A TR201104622A1 (tr) 2011-05-11 2011-05-11 Duble kompresyon vidası ve uygulama yöntemi.
TR2011/4622 2011-05-11

Publications (1)

Publication Number Publication Date
WO2013015754A1 true WO2013015754A1 (fr) 2013-01-31

Family

ID=47073488

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2012/000075 Ceased WO2013015754A1 (fr) 2011-05-11 2012-05-11 Vis de compression double

Country Status (2)

Country Link
TR (1) TR201104622A1 (fr)
WO (1) WO2013015754A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106551718A (zh) * 2015-09-30 2017-04-05 爱派司生技股份有限公司 一种具有多个螺纹区的骨螺钉及包含该骨螺钉的骨板组
US10939944B2 (en) 2018-04-18 2021-03-09 Glw, Inc. Removable orthopedic screws
CN112842503A (zh) * 2021-03-05 2021-05-28 山东航维骨科医疗器械股份有限公司 一种滑动加压锁定接骨螺钉
US11179234B2 (en) 2017-09-15 2021-11-23 Paragon 28, Inc. Ligament fixation system, implants, devices, and methods of use
EP3700447A4 (fr) * 2017-10-25 2021-11-24 Paragon 28, Inc. Système, implants et dispositifs de fixation de ligament avec un capuchon de compression, et procédés d'utilisation
US11617642B2 (en) 2017-10-06 2023-04-04 Paragon 28, Inc. Ligament fixation system, implants, devices, and methods of use
US12303377B2 (en) 2019-09-12 2025-05-20 Paragon 28, Inc. Dynamic fixation implant and method of use

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991009572A1 (fr) * 1989-12-21 1991-07-11 Bakinsky Nauchno-Issledovatelsky Institut Travmatologii I Ortopedii Vis de compression pour osteosynthese
WO2004069031A2 (fr) * 2003-02-03 2004-08-19 Kinetikos Medical Incorporated Appareils a vis de compression, systemes et procedes associes
TR201008521U (tr) 2010-10-18 2011-02-21 Yildiz Vahi̇t İçten kitlemeli kompresyon çivisi.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991009572A1 (fr) * 1989-12-21 1991-07-11 Bakinsky Nauchno-Issledovatelsky Institut Travmatologii I Ortopedii Vis de compression pour osteosynthese
WO2004069031A2 (fr) * 2003-02-03 2004-08-19 Kinetikos Medical Incorporated Appareils a vis de compression, systemes et procedes associes
TR201008521U (tr) 2010-10-18 2011-02-21 Yildiz Vahi̇t İçten kitlemeli kompresyon çivisi.

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106551718A (zh) * 2015-09-30 2017-04-05 爱派司生技股份有限公司 一种具有多个螺纹区的骨螺钉及包含该骨螺钉的骨板组
US11179234B2 (en) 2017-09-15 2021-11-23 Paragon 28, Inc. Ligament fixation system, implants, devices, and methods of use
US11617642B2 (en) 2017-10-06 2023-04-04 Paragon 28, Inc. Ligament fixation system, implants, devices, and methods of use
US12161546B2 (en) 2017-10-06 2024-12-10 Paragon 28, Inc. Ligament fixation system, implants, devices, and methods of use
EP3700447A4 (fr) * 2017-10-25 2021-11-24 Paragon 28, Inc. Système, implants et dispositifs de fixation de ligament avec un capuchon de compression, et procédés d'utilisation
US11786282B2 (en) 2017-10-25 2023-10-17 Paragon 28, Inc. Ligament fixation system, implants, and devices with a compression cap, and methods of use
US10939944B2 (en) 2018-04-18 2021-03-09 Glw, Inc. Removable orthopedic screws
US11793559B2 (en) 2018-04-18 2023-10-24 Glw, Inc. Removable orthopedic screws
US12303377B2 (en) 2019-09-12 2025-05-20 Paragon 28, Inc. Dynamic fixation implant and method of use
CN112842503A (zh) * 2021-03-05 2021-05-28 山东航维骨科医疗器械股份有限公司 一种滑动加压锁定接骨螺钉

Also Published As

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