WO2016144271A1 - Pince interne pour partie inférieure de dispositifs de retenue de fil - Google Patents

Pince interne pour partie inférieure de dispositifs de retenue de fil Download PDF

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Publication number
WO2016144271A1
WO2016144271A1 PCT/TR2015/000093 TR2015000093W WO2016144271A1 WO 2016144271 A1 WO2016144271 A1 WO 2016144271A1 TR 2015000093 W TR2015000093 W TR 2015000093W WO 2016144271 A1 WO2016144271 A1 WO 2016144271A1
Authority
WO
WIPO (PCT)
Prior art keywords
retainer
wire
gripper
tissue
retainers
Prior art date
Application number
PCT/TR2015/000093
Other languages
English (en)
Inventor
Emre KARADENİZ
Original Assignee
Karadeni̇z Emre
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 Karadeni̇z Emre filed Critical Karadeni̇z Emre
Priority to PCT/TR2015/000093 priority Critical patent/WO2016144271A1/fr
Publication of WO2016144271A1 publication Critical patent/WO2016144271A1/fr

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
    • A61B17/56—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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • A61B17/7083—Tools for guidance or insertion of tethers, rod-to-anchor connectors, rod-to-rod connectors, or longitudinal elements
    • 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
    • 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
    • A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices

Definitions

  • the invention is related to an apparatus which, subsequent to fracture healing, enables the wire retainers that fix the Kirschner wire used for fastening and treating the fractured bones by being passed through the bones, to be removed in the field of orthopedic surgery.
  • the invention is particularly related to an inner gripper which allows the retainer lower part remaining on the bone surface to be gripped and removed subsequent to removing the retainer upper part and the balls inside said retainer, during the removal of the wire retainers.
  • Kirschner wire k-wire
  • screw plate-screw
  • intramedullary nail k-wire
  • external fastening The purpose of such techniques is to hold the fractured bone pieces in the desired position until fracture heaiing.
  • the advantages and disadvantages of these techniques vary according to the type of fracture and they shape the treatment plan of the surgeon.
  • these straight wires are made to pass between the bone pieces, whereby the broken bones are fastened.
  • fractured bone pieces may move back and forth through the wire since the wires cannot provide compression between fractured bone pieces.
  • these wires may also move after being placed into the body.
  • fastening the broken bones with screw the fractured bone pieces are placed into their original places first. Compression between the pieces is obtained according to the principle of forming mutual force between the screw head and the screw threads, which is the working principle of screw. In this technique, it is required to increase the dimensions of the screw in order to increase the attachment and compression force between the pieces.
  • the main object of the invention is to provide an apparatus that grips and removes the lower part of the wire retainer remaining on the bone surface out of the tissue after the upper part thereof is removed by means of the squeezing apparatus and the balls therein are removed by means of the magnetic apparatus so that "A wire retainer" according to the Application No. 2010/05662 can be taken outside the tissue without causing any damage thereto after the treatment is over.
  • the object of the invention is to remove the wire retainers from where they are via percutaneous techniques by minimizing the damage to the bones and the surrounding soft tissues during the removal of implants.
  • Fig. 1 is the overall view of the inner gripper according to the invention.
  • Fig. 2 is the detailed/close-up view of the formed tip of the inner gripper according to the invention which is connected to the retainer.
  • Fig. 3 is the overall view of the wire retainer in an alternative embodiment where the upper part is male and the lower part is female.
  • Fig. 4 is the view of the use of inner gripper according to the invention along with the working cannula.
  • Fig. 5 shows the views of the lower part and upper part of the wire retainer, said lower part being produced in threaded form and upper part being connected with the squeezing apparatus, in an alternative embodiment where the upper part is male and the lower part is female.
  • the working cannula (C) is an apparatus which
  • the magnetic apparatus removes the retainers (R) out of the body by following a working area formed by the working cannula (C) at a distance from the bone tissue to the skin, wherein said retainers comprising;
  • wire retainers (R) are used for fastening and treating the fractured bones.
  • the squeezing apparatus is a component which comprises a formed tip which is seated in the grooves in the upper part (5) of the retainer (R) by passing therethrough; and which tightens-locks or loosens-removes the retainer (R) on the bone surface by rotating the screw system of the retainer (R).
  • the gripper is a component which comprises a formed tip which prevents the release of the retainer (R) by passing through the working cannula (C) and which is formed in accordance with the shape of the retainer (R) in order to fully contact with the wire retainer (R).
  • the bail remover is an apparatus which is used for mobilizing the bails inside the retainer (R). it has a formed tip which is in convex form from the body to the tip: has a form in accordance with the sizes of the balls inside the wire retainer (R); and is thin (sharp) enough to get between the contacting portions of the balls with the k-wire.
  • the present invention is used together with "A wire retainer” according to the Application No 2010/05662, which has been granted an examined patent certificate by Turkish Patent Institute and which is used for fastening the broken bones.
  • the inner gripper (IG) according to the invention allows the removal of the retainer (R) according to the Application No 2010/05662 via percutaneous techniques.
  • the inner gripper (IG) is in general an apparatus which, in order for the k-wire to be removed via percutaneous techniques, loosens and removes the lower part (5) of the wire retainer (R) remaining on the bone surface out of the tissue via percutaneous technique, the balls and upper part (4) of said wire retainer having been removed previously, wherein said inner gripper comprises a body (2) sized in a way to pass through the gripper (G),
  • a tip part (1) which, in order to be placed into the Iower part (5) of the wire retainer (R), is sized in accordance with the inner diameter of the Iower part (5) and is of a threaded configuration that is suited for the dimensions of the threads in the inner surface of the Iower part (5), and
  • a wire retainer Since the dimensions of "A wire retainer” are equal to the size of screw heads, the retainer (R) occupies less space compared to the plates located onto the broken bones and the problem of feeling the retainer (R) under the skin with hand is less experienced. Because the compression force provided by threads in screws requires attachment to the bone marrow; the usage thereof causes difficulties in patients with low bone quality. However, as “A wire retainer” provides attachment over the bone cortex, it provides very important advantages in terms of use in patients with low bone quality, e.g. patients with osteoporosis. Since cortical attachment is provided by "A wire retainer", the problem of dislocation of retainers (R) is eliminated. While the k-wire is being removed after fracture treatment, the retainer (R), and hence the k-wire, can be taken out by means of a magnetic apparatus via percutaneous techniques.
  • the retainer (R) is removed by means of the magnetic apparatus as below:
  • a small incision is made to reach the retainer (R).
  • the working cannula (C) is placed on the retainer (R).
  • the gripper (G) and the squeezing apparatus are placed on the retainer (R) by passing through the working cannula (C). While the gripper (G) is held still, the squeezing apparatus is rotated counterclockwise, thereby loosening the retainer (R) gently.
  • the gripper (G) and squeezing apparatus are removed.
  • the magnetic apparatus is made to pass through the working cannuia (C) in a way to get closer to the retainer (R).
  • the retainer (R) is pushed gently by means of the magnetic apparatus.
  • the retainer (R) is taken out of the tissue at tip of the magnetic apparatus.
  • the magnetic apparatus might fail to move the balls inside the wire retainer (R) during surgery, !n this case:
  • the working cannula (C) is placed again. While the gripper (G) Is held still inside the working cannula (C), the squeezing apparatus is placed in the upper part (4) of the wire retainer. The squeezing apparatus is rotated counterclockwise and the upper part (4) of the retainer (R) is taken fully out of the tissue. The gripper (G) is removed.
  • the magnetic apparatus is made to pass through the working cannula (C) and the retainer (R) is pushed.
  • the balls inside the retainer (R) are removed out of the tissue together with the magnetic apparatus.
  • the balls are mobilized by means of the ball remover passed through the working cannula and the magnetic apparatus is applied once more. This process continues until ail the balls are removed out of the tissue.
  • the inner gripper (IG) according to the invention has been developed in order for the lower part (5) of the wire retainer (R) to be gripped and removed subsequent to the removal of the bails inside the wire retainer (R).
  • the k-wire may also be removed in a much easier way by percutaneous techniques.
  • the tip (1 ) of the invention can have different shapes, varieties and dimensions in accordance with the dimension and shape of the wire retainer (R).
  • the transverse section of the body (2) according to the invention may have a shape other than cylinder (such as hexagonal, rectangle) and a different length.
  • the holding part (3) of the invention may be "T” , "L", "C shaped or may have another shape.

Abstract

L'invention se rapporte à une pince interne (PI) possédant une partie terminale filetée, ce qui permet à la partie inférieure (5) d'un dispositif de retenue de fil (R), restant sur la surface de l'os, d'être saisie et retirée après le retrait, hors du tissu, de la partie supérieure du dispositif de retenue et des billes situées à l'intérieur dudit dispositif de retenue, pendant le retrait des dispositifs de retenue de fil.
PCT/TR2015/000093 2015-03-10 2015-03-10 Pince interne pour partie inférieure de dispositifs de retenue de fil WO2016144271A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TR2015/000093 WO2016144271A1 (fr) 2015-03-10 2015-03-10 Pince interne pour partie inférieure de dispositifs de retenue de fil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2015/000093 WO2016144271A1 (fr) 2015-03-10 2015-03-10 Pince interne pour partie inférieure de dispositifs de retenue de fil

Publications (1)

Publication Number Publication Date
WO2016144271A1 true WO2016144271A1 (fr) 2016-09-15

Family

ID=52875209

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2015/000093 WO2016144271A1 (fr) 2015-03-10 2015-03-10 Pince interne pour partie inférieure de dispositifs de retenue de fil

Country Status (1)

Country Link
WO (1) WO2016144271A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070032790A1 (en) * 2005-08-05 2007-02-08 Felix Aschmann Apparatus for treating spinal stenosis
TR201005662A1 (tr) 2010-07-12 2012-01-23 Karadeni̇z Emre Bir tel tutucusu.
US20140336709A1 (en) * 2013-03-13 2014-11-13 Baxano Surgical, Inc. Multi-threaded pedicle screw system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070032790A1 (en) * 2005-08-05 2007-02-08 Felix Aschmann Apparatus for treating spinal stenosis
TR201005662A1 (tr) 2010-07-12 2012-01-23 Karadeni̇z Emre Bir tel tutucusu.
US20140336709A1 (en) * 2013-03-13 2014-11-13 Baxano Surgical, Inc. Multi-threaded pedicle screw system

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