[go: up one dir, main page]

WO2012057386A1 - Commande pour la fixation de vis de pédicule - Google Patents

Commande pour la fixation de vis de pédicule Download PDF

Info

Publication number
WO2012057386A1
WO2012057386A1 PCT/KR2010/007700 KR2010007700W WO2012057386A1 WO 2012057386 A1 WO2012057386 A1 WO 2012057386A1 KR 2010007700 W KR2010007700 W KR 2010007700W WO 2012057386 A1 WO2012057386 A1 WO 2012057386A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
rod
pedicle screw
pedicle
ratchet
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/KR2010/007700
Other languages
English (en)
Korean (ko)
Inventor
김종우
김종운
신찬수
최선각
주병준
이성희
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.)
DIOMEDICAL Co Ltd
Original Assignee
DIOMEDICAL Co Ltd
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 DIOMEDICAL Co Ltd filed Critical DIOMEDICAL Co Ltd
Publication of WO2012057386A1 publication Critical patent/WO2012057386A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
    • A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • A61B17/7076—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
    • A61B17/7082—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation for driving, i.e. rotating, screws or screw parts specially adapted for spinal fixation, e.g. for driving polyaxial or tulip-headed 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other

Definitions

  • the present invention relates to a screwdriver for pedicle screw fastening to the pedicle screw pedicle screw installed to correct the spine.
  • the spine is a part that supports the body, and usually consists of 24 bones, with a disk between the bones and the adjacent bones, and a nerve passing through the center of the bones.
  • the fixation device to fix the pedicle should be inserted to correct the position of the spine or to compress the pressure so as not to press the nerve.
  • the chiropractic procedure is to perform vertebrae correction by fastening pedicle screws to a plurality of pedicles, and combining rods across the pedicle and adjacent pedicles.
  • the chiropractic procedure can prevent the pedicle from compressing the nerve by correcting the spine so as to be opened by the rod between the pedicle that compresses the nerve and the adjacent pedicle.
  • the pedicle screw used in the chiropractic procedure is formed in a cup shape and the head is formed with a seating groove with an open upper portion so that the rod can be seated, rotatably coupled to the lower portion of the head and screwed to the pedicle It is made up of a threaded body.
  • the upper inner circumferential surface of the head is formed with a screw thread to which the stop screw is coupled so that the rod seated in the seating groove is fixed to the head, and a seating groove for seating the fastening tool is formed at the top of the body.
  • Pedicle screws having such a configuration are fastened to the pedicle using a fastening tool called a screwdriver, which is similar in principle to a conventional screw driver but is different from a conventional screw driver to fasten the pedicle screw as described above.
  • a screwdriver which is similar in principle to a conventional screw driver but is different from a conventional screw driver to fasten the pedicle screw as described above.
  • Conventional pedicle screw fastening screwdriver is provided with a main rod having a handle at one end and a tip for rotating and fixing the head at the other end, and a rod housing surrounding the outer surface of the main rod.
  • the end of the rod housing is formed with a thread screwed to the head of the pedicle screw.
  • the conventional pedicle screw fastening driver configured as described above seats the tip of the main rod in the seating groove formed in the body, and screw the thread formed at the end of the rod housing to the thread formed in the head so that the head is not rotated in the body of the pedicle screw. Join the pedicle screw in the form of fastening.
  • the pedicle screw is fastened to the pedicle while the screwdriver is coupled to the pedicle screw.
  • the present invention is to solve the problems as described above, the problem to be solved by the present invention is a spine that can prevent the wear or breakage of the tip of the pedicle screw is detached from the driver when the pedicle screw on the spine It is to provide a screwdriver for tightening a light screw.
  • a screwdriver for pedicle screw fastening to the pedicle pedicle screw consisting of a screw thread formed body and the head portion for supporting the body to the pedicle
  • the tip portion for supporting the body is formed at one end
  • the main rod handle is coupled to the other end
  • the main rod is inserted into the center rotatably installed around the main rod, screwed with the head portion
  • a rod housing having a screw portion formed therein, and a lock portion provided on the main rod to limit and release rotation in an opposite direction in which the rod housing is screwed with the head portion.
  • the locking portion is a ratchet gear formed in the shape of a saw tooth around the rod housing, a ratchet dial rotatably supported on the main rod to enclose the ratchet gear, and the ratchet gear is over or spanned according to the rotation of the ratchet dial. It may include a stopper to be released.
  • a tilt ball is installed on the main rod, and a ball seating groove in which the tilt ball is seated is formed in the ratchet dial to limit the rotation angle of the ratchet dial.
  • the rod housing may include a first housing having a threaded portion screwed to the head portion so that the length thereof is stretchable and a second housing inserted therein to allow the first housing to slide.
  • the rod housing may be inserted into the rod housing so as to be slidably movable from the outside of the rod housing, and may further include a handle cover held by an operator.
  • the handle cover may further include an elastic member for elastically supporting the rod housing such that the rod housing generates an elastic force in a lower direction of the main rod.
  • a lower portion of the handle cover may be slidably moved into the handle cover and may be provided with a spring pusher that covers the lower end of the rod housing to support the elastic member.
  • the locking portion can prevent the rod housing from rotating in a direction opposite to the direction in which the head portion and the rod housing of the pedicle screw is screwed, screwing the screwdriver and the pedicle screw when performing the pedicle screw on the spine This loosening has the effect of preventing the tip portion from being worn or breaking the tip portion.
  • the screw portion of the rod housing is elastically supported in the direction of screwing by the elastic member, it is possible to easily fasten the driver and the pedicle screw.
  • the grip is provided so that the operator can easily fasten the pedicle screw to the spine.
  • FIG. 1 is a side view showing a screwdriver for pedicle screw fastening according to an embodiment of the present invention.
  • Figure 2 is a side cross-sectional view showing a screwdriver for pedicle screw fastening according to an embodiment of the present invention.
  • Figure 3 is a side cross-sectional view of the main rod of the screwdriver for pedicle screw fastening according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view taken along the line A-A of FIG.
  • Figure 5 is a side view showing a rod housing of the screwdriver for pedicle screw fastening according to an embodiment of the present invention.
  • Figure 6 is a cross-sectional view showing the grip of the screwdriver for pedicle screw fastening according to an embodiment of the present invention.
  • Figure 7 is a perspective view of the ratchet dial of the screwdriver for pedicle screw fastening according to an embodiment of the present invention.
  • FIG. 8 is a cross-sectional view showing a locking portion of the screwdriver for pedicle screw fastening according to an embodiment of the present invention.
  • FIG. 9 is a cross-sectional view taken along line B-B in FIG. 7, and is a cross-sectional view showing a locking part of a screwdriver for pedicle screw fastening according to an embodiment of the present invention.
  • FIG. 10 is a cross-sectional view showing a state in which the ratchet dial of the pedicle screw fastening driver according to the embodiment of the present invention is located in the locked position.
  • the pedicle screw fastening driver 100 according to an embodiment of the present invention relates to a driver for fastening the pedicle screw 200 to the pedicle to correct the spine.
  • the pedicle screw 200 is composed of a head portion 210 and the handle 300, the handle 300 is a rod-shaped narrower toward the bottom of the pedicle screw 200 is to be fixed to the pedicle Threads can be formed to allow for
  • the upper portion of the handle 300 may be formed with a polygonal tip seating groove 231 of hexagonal, cross, date, or star shape such that the screwdriver for fastening the pedicle screw can be coupled.
  • the head portion 210 has a cup shape in which the upper portion is opened, and the upper end of the handle 300 is rotatably coupled to the center of the lower portion, and a seating groove 211 is formed at the side of the head portion 210.
  • a thread 213 may be formed on the inner circumferential surface of the cup-shaped head portion 210 to which a stop screw having a thread formed on the outer surface thereof may be fastened.
  • the pedicle screw 200 is a pedicle screw 200 adjacent to the seating groove 211 of any one of the pedicle screw 200 after installing the pedicle screw 200 to each pedicle rod-shaped rod Seating so as to cross the seating groove 211 of the), and fastening a stop screw (not shown) to the top of each head portion 210 to fix the rod (not shown), thereby adjusting the distance between the plurality of pedicles The spine can be corrected.
  • the pedicle screw fastening driver 100 may include a main rod (110).
  • the main rod 110 is formed in a rod shape, the tip portion 111 is formed so that the pedicle screw 200 is coupled to one end, the handle 300 may be coupled to the other end.
  • the tip 111 is formed in a shape corresponding to the tip seating groove 231 formed in the handle 300 of the pedicle screw 200 may be fitted to the tip seating groove 231. .
  • the main rod 110 may include a handle adapter 120 so that the handle 300 can be detachably coupled.
  • the handle adapter 120 is coupled to the opposite end of the main rod 110, the tip 111 of the main rod 110 is installed, the handle adapter 120 has a larger circumference than the circumference of the main rod 110 Branches in the opposite direction in which the main body 121, the detachable portion 123 protruding upward of the main body 121 to detachably couple the handle 300, and the detachable portion 123 of the main body 121 are formed. That is, it may include a dial seating portion 125 protruding to the lower portion of the main body 121.
  • the detachable portion 123 may be formed in various ways according to the configuration of the handle 300 detachably coupled to the detachable portion 123 is not limited to the shape, the detachable handle 300 is a known technique As variously disclosed, detailed description thereof will be omitted.
  • the handle 300 in the embodiment of the present invention is shown in the drawings by applying the handle 300 formed in the shape of the "T" easy to grip by hand (see Figure 1).
  • a housing insertion groove 126 is formed at a lower end center of the dial seating part 125 to partially insert an end of the rod housing 130 to be described below, and a main body 121 at a lower end center of the housing insertion groove 126.
  • a rod insertion groove 122 into which the main rod 110 is inserted and fixed may be formed.
  • the main rod 110 inserted into the rod insertion groove 122 may be fixed to the handle adapter 120 by a stop screw which is screwed through the through hole 121a formed in the side surface of the main body 121.
  • the dial seating portion 125 of the handle adapter 120 may be formed with a stopper insertion groove 125a which is eccentric from one side of the cover seating portion to penetrate the side of the dial seating portion 125.
  • the stopper 160 groove is installed to allow the stopper 160 to be slidably moved, and communicates with the housing insertion groove 126.
  • the lower end of the main body 121 is formed with a ball insertion groove 121b in which the tilt ball 165 can be installed.
  • the spherical tilt ball 165 may be elastically supported in the groove 121b by the elastic member 166 so as to partially protrude toward the lower end of the main body 121.
  • the elastic member 166 is preferably a coil spring.
  • handle adapter 120 may be formed integrally with the main rod 110, of course.
  • the pedicle screw fastening driver 100 may include a rod housing 130.
  • the rod housing 130 may be formed in a tubular shape surrounding the main rod 110 so that the main rod 110 can be inserted and rotated. At the end where the tip 111 of the 110 is positioned, a thread 132 that is screwed with a screw thread formed on an inner circumferential surface of the head 210 may be formed.
  • the rod housing 130 may include a first housing 135 and a second housing 131 to adjust the length.
  • the first housing 135 is formed in a tubular shape so that an upper end portion of the main rod 110 is more specifically end portion of the housing insertion groove 126 of the handle adapter 120 coupled to the upper end of the main rod 110. Is inserted.
  • a housing latching jaw 131b may be formed inside the first housing 135 to cover the upper portion of the second housing 131, and the first housing may be inserted into the housing insertion groove 126.
  • the opposite end of the 135 may be formed with a pin insertion hole 137 into which the coupling pins 139 may be inserted, respectively penetrating through opposite sides of the first housing 135.
  • a sliding key groove 136 may be formed on a side surface of the first housing 135.
  • the second housing 131 is formed in a tubular shape so that the main rod 110 penetrates, and is positioned to insert a portion of the upper end of the second housing 131 into the lower end of the first housing 135.
  • coupling pins 139 penetrating the first housing 135 are inserted into both sides of the second housing 131 facing each other to connect the first housing 135 and the second housing 131 to each other.
  • the guide hole 133 may be formed long up and down.
  • the guide hole 133 guides the movement of the second housing 131 to be guided and moved by the coupling pin 139 when the second housing 131 is inserted into the first housing 135.
  • the coupling pin 139 may span the guide hole 133 to rotate the second housing 131 together.
  • the length of the guide hole 133 when the second housing 131 is inserted into the interior of the first housing 135, when the upper end portion of the second housing 131 over the housing engaging jaw (131b) It can be formed to a length that can be inserted up to.
  • a threaded portion 132 having a screw thread may be formed at a distal end of the second housing 131 inserted into the first housing 135 so as to be screwed with the head portion 210.
  • the rod housing 130 configured as described above inserts the tip 111 of the main rod 110 into the tip seating groove 231 in the pedicle screw 200 and the second housing 131 of the first housing 135.
  • the rod housing 130 is rotated while pressing downward, the pedicle screw 200 is firmly fastened to the pedicle screw fastening driver 100 so that the pedicle screw 200 can be easily fastened to the pedicle.
  • the pedicle screw fastening driver 100 may further include a grip part 150.
  • the grip part 150 not only facilitates the procedure by the operator to grip, but also the end of the rod housing 130, more specifically, the threaded portion 132 of the second housing 131, in which the head portion 210 is positioned. Pressing in the direction can facilitate the fastening of the screw portion 132 to the head portion 210.
  • the grip unit 150 may include a handle cover 151.
  • the handle cover 151 may be pressed in the direction in which the head portion 210 is located so that the operator grips the rod housing 130 to be easily fastened to the head portion 210, and the pedicle screw 200 When fastening the pedicle to the pedicle can easily press the screwdriver 100 for pedicle screw fastening in the direction the pedicle is located.
  • the handle cover 151 is formed in a tubular shape so that the rod housing 130 can be inserted therein, the rod housing 130 can rotate around the center of the handle cover 151, the handle cover 151 ) May be formed to be shorter than the length of the rod housing 130 so as to slide upwardly or downwardly from the outer surface of the rod housing 130.
  • a plurality of sterilant supply holes 151a may be formed on the outer surface of the handle cover 151.
  • the sterilant supply hole (151a) is a handle cover 151 is located on the outermost side of the screwdriver for fastening the pedicle screw to contact the body to fill the sterilizer supply hole (151a) to perform a spinal correction procedure by Secondary infection by external germs can be prevented.
  • the grip part 150 may include an elastic member 156.
  • the elastic member 156 moves the handle cover 151 to the lower portion of the rod housing 130, and more specifically, the threaded portion 132 of the second housing 131 is connected to the head portion 210. It can be pressed to be in close contact by the elastic force.
  • the elastic member 156 may be located between the handle cover 151 and the second housing 131, the elastic member 156 is a coil spring that can be inserted into the center of the rod housing 130 desirable.
  • the grip unit 150 may further include a spring pusher 153.
  • the spring pusher 153 may transfer the elastic force of the elastic member 156 to the second housing 131 when the handle cover 151 moves downward of the rod housing 130. That is, when the handle cover 151 is moved to the lower portion of the rod housing 130, the elastic member 156 pushes the spring pusher 153 by the elastic force, and the spring pusher 153 is the threaded portion of the second housing 131.
  • the elastic force may be transmitted to press the 132 in the direction in which the head portion 210 is located.
  • the spring pusher 153 is formed in a tubular shape so that the rod housing 130 can be inserted through, the portion of the upper end of the spring pusher 153 is inserted into the lower end of the handle cover 151, the handle cover 151 Sliding inside).
  • one end of the elastic member 156 is supported by the upper end of the spring pusher 153, the other end of the elastic member 156 may be supported by the handle cover 151, the spring pusher 153 is the handle cover ( The cover locking jaw 153a may be formed on the outer surface of the lower portion of the spring pusher 153 to protrude from the bottom of the spring pusher 153.
  • the 131a may protrude from the lower portion of the second housing 131, more specifically, the upper portion of the threaded portion 132.
  • the grip unit 150 may include a knob 157.
  • the knob 157 may be formed in a ring shape, and a rod housing 130, and more specifically, a first housing 135 may be inserted into an inner circumferential surface thereof to support an upper end of the handle cover 151.
  • the knob 157 can be moved to the upper or lower portion of the first housing 135 by sliding the handle cover 151 to the upper or lower, the knob 157 is handle handle (to facilitate the operator gripping) It may be formed to have a larger perimeter than the perimeter of 151.
  • the knob 157 is located in the portion of the first housing 135 in which the sliding key groove 136 is formed, the movement of the upper or lower is limited, in this case, the side of the knob 157 of the knob 157
  • the through hole 158 penetrated to the inner circumferential surface is formed.
  • the roller pin 158 is inserted into the sliding keyway 136 through the through hole 158 formed in the knob 157, so that the roller pin 158 covers the upper or lower portion of the sliding keyway 136. It is possible to limit the movement of the 157 and to prevent the knob 157 from being separated from the first housing 135.
  • the pedicle screw fastening driver 100 may include a locking part 140.
  • the lock part 140 may prevent the rod housing 130 from rotating in one direction about the main rod 110. That is, the locking part 140 prevents the screw part 132 of the rod housing 130 from being rotated in the opposite direction to the direction in which the screw part 132 is screwed to the head part 210 of the pedicle screw 200. Screwing of the pedicle screw 200 screwed to the driver 100 can be prevented from loosening.
  • the locking unit 140 may include a ratchet gear 138.
  • the ratchet gear 138 may have a sawtooth shape and may be formed around an upper end of the rod housing 130, more specifically, an upper end of the first housing 135. At this time, the ratchet gear 138 may be inserted into the housing insertion groove 126 formed in the handle adapter 120.
  • the locking portion 140 may include a ratchet dial 141.
  • the ratchet dial 141 may be formed to surround the lower periphery of the cover seating portion constituting the handle adapter 120 coupled to the main rod 110, more specifically, the main rod 110, and rotates around the cover seating portion. can do.
  • the ratchet dial 141 may be located between the handle adapter 120 and the knob 157.
  • the ratchet dial 141 is projected upward from the bottom of the ratchet dial 141 is inserted into the housing insertion groove 126, and rotates together when the ratchet dial 141 is rotated to open and close the stopper insertion groove (125a). Opening and closing protrusions 142 may be formed.
  • the opening and closing protrusion 142 is located between the housing insertion groove 126 and the ratchet gear 138 to rotate without interrupting the ratchet gear 138 during the rotation of the ratchet dial 141, the stopper insertion groove 125a. Can be opened and closed.
  • the locking unit 140 may include a stopper 160.
  • the stopper 160 is inserted into the stopper insertion groove 125a in the shape of a rod and can slide in the stopper insertion groove 125a.
  • the stopper 160 may be supported by an elastic member (not shown) to protrude by the elastic force in the direction in which the ratchet gear 138 is positioned in the stopper insertion groove 125a.
  • the locking unit 140 configured as described above rotates the ratchet dial 141 and releases the ratchet dial 141 in the unlocked position. By preventing the support between the teeth of 138, the rod housing 130 can be freely rotated around the main rod 110 without restriction of the rotation direction (see Fig. 9).
  • the opening / closing protrusion 142 provided in the ratchet dial 141 opens the stopper insertion groove 125a so that the stopper 160 is positioned with the ratchet gear 138.
  • the sliding movement in the direction is supported between the teeth of the ratchet gear 138, thereby limiting the rotation such that the rod housing 130 rotates only in one direction about the main rod 110 (see FIG. 10).
  • the ratchet gear 138 is caught by the stopper 160 and cannot rotate when rotating in the counterclockwise direction, the direction of rotation is limited so that the rod housing 130 rotates in only one direction about the main rod 110. can do.
  • the limit of the rotational direction of the rod housing 130 is the eccentric position of the stopper insertion groove (125a) formed in the main rod 110, the corner angle of the protruding stopper 160, or the teeth of the ratchet gear 138 By changing according to the angle, various deformations are possible.
  • the ratchet dial 141 may be formed with a ball seating groove 143 to limit the rotation of the ratchet dial 141.
  • the ball seating groove 143 is a groove in which the tilt ball 165 provided on the handle adapter 120 may be seated, and may be formed at a position corresponding to the tilt ball 165, and the ratchet dial 141 is inserted into the stopper.
  • a plurality of circumferential directions may be formed on the upper surface of the ratchet dial 141 so as to limit the rotation of the ratchet dial 141 by the tilt ball 165 (see FIG. 8). .
  • all the components constituting the pedicle screw driver 100 for fastening according to the embodiment of the present invention may be formed of titanium, aluminum, stainless steel, etc. to reduce the weight.
  • the tip portion 111 is formed on one end of the main rod 110, the other end of the handle adapter so that the handle 300 is detachably coupled ( 120 is provided.
  • the end of the rod housing 130 is inserted into the housing insertion groove 126 formed in the dial seating part 125 constituting the handle adapter 120.
  • the rod housing 130 is a pin insertion hole 137 and the guide hole 133 formed on both sides of the first housing 135 and the second housing 131 by the coupling pin 139 so that the length is stretchable
  • the first housing 135 and the second housing 131 are installed in such a manner as to penetrate each other, and the upper portion of the first housing 135 connected in this way may be inserted into the housing insertion groove 126. have.
  • a ratchet gear 138 is provided at an upper end of the rod housing 130, more specifically, at an upper end of the first housing 135, and a portion of the ratchet gear 138 is inserted into the housing insertion groove 126.
  • the lower end of the rod housing 130 may be formed with a screw portion 132 is screwed to the pedicle screw 200, when the length of the rod housing 130 is configured to be stretchable of the second housing 131 It may be formed at the bottom.
  • the rod housing 130 is inserted into the handle cover 151, and a knob 157 is disposed at the upper end of the handle cover 151 from the outer surface of the rod housing 130 to the top or the bottom of the handle cover 151. It is coupled to the rod housing 130 by a roller pin 158 to be moved.
  • the spring pusher 153 is installed at the lower portion of the handle cover 151 so as to slide on the outer surface of the rod housing 130, and elastic members 156 and 166 are disposed between the handle cover 151 and the spring pusher 153. It is installed, the spring pusher 153 is caught across the engaging jaw of the second housing 131 so that the spring pusher 153 is located in the direction in which the tip 111 of the main rod 110 is positioned with the second housing 131 elastically. It consists of a close contact form.
  • the stopper 160 is inserted into the stopper insertion groove 125a of the handle adapter 120 so as to be slidably movable, and the ratchet dial 141 is rotatable to the dial seating portion 125 of the handle adapter 120. Is installed.
  • the ratchet dial 141 is provided with an opening and closing protrusion 142 protruding upward to open and close the stopper insertion groove 125a in the ratchet dial 141 as it rotates.
  • a tilt ball 165 is elastically supported by the elastic members 156 and 166 on the lower circumference of the handle adapter 120, and a ball seat on which the tilt ball 165 may be seated on the upper surface of the ratchet dial 141.
  • the groove 143 is formed and configured to limit the rotation angle when the ratchet dial 141 rotates.
  • the pedicle screw fastening driver 100 according to the embodiment of the present invention configured as described above, first, the detachable handle 300 is coupled to the upper portion of the handle adapter, the tip 111 of the main rod 110 to the pedicle screw Fit into the tip seating groove 231 formed in the head portion 210 of the (200).
  • the ratchet dial 141 is confirmed to be in the locked position and rotated to be in the locked position.
  • the opening / closing protrusion 142 of the ratchet dial 141 opens the stopper insertion groove 125a, and the stopper 160 protrudes from the open stopper insertion groove 125a. Since the rod housing 130 is supported by the ratchet gear 138, rotation of the rod housing 130 in the opposite direction in which the rod housing 130 is screwed with the head portion 210 may be limited.
  • knob 157 is rotated to screw the screw 132 to the head 210 of the pedicle screw 200.
  • the gripping portion is rotatably provided in the rod housing 130, so that only the rod housing 130 and the main rod 110 rotate inside the gripping portion. Screw 200 can be screwed in.
  • the locking unit 140 prevents the rod housing 130 from rotating in the opposite direction in which the rod housing 130 is screwed with the pedicle screw 200 so that the fastening of the pedicle screw 200 fastened to the rod housing 130 is prevented. It can be prevented from loosening.
  • the rod housing 130 is screwed around the main rod 110 in the opposite direction.
  • the ratchet dial 141 is rotated to an initial position, that is, an unlocked position, to be rotatable.
  • the opening and closing protrusion 142 pushes the stopper 160 into the stopper insertion groove 125a and closes the stopper insertion groove 125a so that the ratchet gear 138 stops. Release what is supported by 160.
  • the knob 157 is rotated in the opposite direction in which the pedicle screw 200 and the screw 132 of the rod housing 130 are screwed to separate the pedicle screw 200 and the rod housing 130,
  • the tip 111 is separated from the tip seating groove 231 to separate the pedicle screw 200 and the pedicle screw fastening driver 100.
  • the rod housing 130 screwed with the pedicle screw 200 prevents the rotation in the opposite direction that the rod housing 130 is fastened with the pedicle screw 200, so that the rod housing 130 and the pedicle screw 200 are fastened.
  • the tip 111 By preventing the tip 111 from being damaged by loosening, the durability and lifespan of the pedicle screw fastening driver 100 are improved, and the replacement cost of the pedicle screw fastening driver 100 due to the breakage of the tip 111 is reduced. Can be reduced.

Landscapes

  • Health & Medical Sciences (AREA)
  • Neurology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (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 porte sur une commande pour la fixation d'une vis de pédicule, qui est conçue pour corriger la colonne vertébrale, aux pédicules. Selon des modes de réalisation de la présente invention, une commande pour la fixation d'une vis de pédicule comprenant un corps ayant un filetage, et une partie de tête pour supporter le corps, comprend : une tige principale dans laquelle une partie de pointe pour le support du corps est formée sur une extrémité et une poignée est couplée à l'autre extrémité ; un boîtier de tige dans lequel la tige principale est introduite au centre pour permettre au boîtier de tige d'être disposé de manière rotative autour de la tige principale, et une partie de vis fixée à la partie de tête par une vis est formée ; et une partie de verrouillage pour limiter et libérer la rotation du boîtier de tige dans la direction opposée à la direction de fixation de vis avec la partie de tête, disposée au niveau de la tige principale.
PCT/KR2010/007700 2010-10-28 2010-11-03 Commande pour la fixation de vis de pédicule Ceased WO2012057386A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100106006A KR101020247B1 (ko) 2010-10-28 2010-10-28 척추경 나사못 체결용 드라이버
KR10-2010-0106006 2010-10-28

Publications (1)

Publication Number Publication Date
WO2012057386A1 true WO2012057386A1 (fr) 2012-05-03

Family

ID=43938554

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/007700 Ceased WO2012057386A1 (fr) 2010-10-28 2010-11-03 Commande pour la fixation de vis de pédicule

Country Status (2)

Country Link
KR (1) KR101020247B1 (fr)
WO (1) WO2012057386A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013004369U1 (de) * 2013-04-29 2014-07-30 Silony Medical International AG Schraubendreher für Knochenschrauben
WO2017198553A1 (fr) * 2016-05-18 2017-11-23 Clariance Tournevis orthopedique a verrouillage automatique
US20170333093A1 (en) * 2016-05-18 2017-11-23 Clariance Self-locking screwdriver
US10820936B2 (en) 2016-11-04 2020-11-03 Orthopedic Renovation Technologies, Llc Pedicle screw removal tool and method of use
US11534223B2 (en) 2016-11-04 2022-12-27 Orthopedic Renovation Technologies, Llc Pedicle screw removal tool and method of use

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101573774B1 (ko) * 2013-10-15 2015-12-02 김창수 가이드가 구비된 의료용 드라이버
KR101575948B1 (ko) 2014-03-26 2015-12-10 경북대학교 산학협력단 의료용 전류 테스트 장치
CN105033915A (zh) * 2015-07-09 2015-11-11 吴江市三达五金工具厂 一种新型五金螺丝刀
KR101981981B1 (ko) 2017-11-10 2019-05-24 경북대학교 산학협력단 의료용 나사못
KR102007430B1 (ko) 2017-12-19 2019-10-01 부산대학교 산학협력단 나사못 탈출 자동감지 센서가 구비된 척추용 드릴
KR102089782B1 (ko) * 2018-05-02 2020-03-16 고려대학교 산학협력단 외과적 아울
KR102118034B1 (ko) * 2018-05-02 2020-06-02 고려대학교 산학협력단 외과적 큐렛
KR102190053B1 (ko) * 2019-04-02 2020-12-11 연세대학교 산학협력단 수술용 가이드 와이어 클램프 장치
KR102377047B1 (ko) * 2021-11-26 2022-03-22 알앤엑스(주) 척추 수술기구

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5196015A (en) * 1992-04-30 1993-03-23 Neubardt Seth L Procedure for spinal pedicle screw insertion
KR20090005316A (ko) * 2006-04-11 2009-01-13 신세스 게엠바하 최소 침습적 고정 시스템
KR20090116760A (ko) * 2007-02-08 2009-11-11 워쏘우 오르쏘페딕 인코포레이티드 다수의 임플란트 분배 드라이버
KR100930369B1 (ko) * 2009-05-04 2009-12-08 김영우 척추 시술용 전동나사못 드라이버

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5196015A (en) * 1992-04-30 1993-03-23 Neubardt Seth L Procedure for spinal pedicle screw insertion
KR20090005316A (ko) * 2006-04-11 2009-01-13 신세스 게엠바하 최소 침습적 고정 시스템
KR20090116760A (ko) * 2007-02-08 2009-11-11 워쏘우 오르쏘페딕 인코포레이티드 다수의 임플란트 분배 드라이버
KR100930369B1 (ko) * 2009-05-04 2009-12-08 김영우 척추 시술용 전동나사못 드라이버

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013004369U1 (de) * 2013-04-29 2014-07-30 Silony Medical International AG Schraubendreher für Knochenschrauben
WO2017198553A1 (fr) * 2016-05-18 2017-11-23 Clariance Tournevis orthopedique a verrouillage automatique
US20170333093A1 (en) * 2016-05-18 2017-11-23 Clariance Self-locking screwdriver
FR3051351A1 (fr) * 2016-05-18 2017-11-24 Clariance Tournevis a verrouillage automatique
US10575881B2 (en) * 2016-05-18 2020-03-03 Clariance Self-locking screwdriver
US10820936B2 (en) 2016-11-04 2020-11-03 Orthopedic Renovation Technologies, Llc Pedicle screw removal tool and method of use
US11534223B2 (en) 2016-11-04 2022-12-27 Orthopedic Renovation Technologies, Llc Pedicle screw removal tool and method of use

Also Published As

Publication number Publication date
KR101020247B1 (ko) 2011-03-07

Similar Documents

Publication Publication Date Title
WO2012057386A1 (fr) Commande pour la fixation de vis de pédicule
WO2014042374A2 (fr) Tour de contrôle pour système chirurgical très peu invasif, système d'insertion d'une tige, système de réduction d'une tige et dispositif de compression de la tension
US5064375A (en) Holder
WO2017146478A1 (fr) Prothèse amovible d'accouplement à un implant
CN103370020B (zh) 用于肘关节的外部骨科固定器
AU2011226870B2 (en) Bolt and tool with anti-torque features
ES2546178T3 (es) Abrazadera para fijación ortopédica externa, temporal o definitiva, y sistema de fijación externo que comprende dicha abrazadera
WO2013125924A1 (fr) Fixation d'implant présentant une structure d'adaptateur de corps élastique permettant de fixer une butée à la surface interne du trou de guidage
WO2021071150A1 (fr) Cage de fusion intervertébrale réglable en hauteur
WO2021177543A1 (fr) Cage de fusion vertébrale réglable en hauteur
KR20050107816A (ko) 개선된 강도 및 강성을 갖는 척추 고정 장치
WO2011158986A1 (fr) Outil pour insérer une tige destinée à effectuer une correction spinale et dispositif chirurgical de correction spinale équipé dudit outil
WO2016137077A1 (fr) Ensemble d'appareil de guidage de chirurgie d'implant et procédé d'utilisation associé
WO2018084641A2 (fr) Plaque cervicale antérieure
WO2021215851A1 (fr) Ensemble de couplage de prothèse d'implant dentaire
WO2015133733A1 (fr) Attache de fixation de prothèse dentaire
WO2019112195A1 (fr) Fixation d'implant dentaire
WO2017126821A1 (fr) Structure d'implant et pilier
WO2017126788A1 (fr) Ensemble prothèse de colonne cervicale
WO2023027379A1 (fr) Prothèse amovible accouplée à un implant combinée à un accessoire de fixation/détachement de dentier
WO2018084325A1 (fr) Ensemble vis d'implant vertébral
US20100239994A1 (en) Anchoring device for tooth and/or jaw adjustment
WO2017039154A1 (fr) Support de vis, pour chirurgie mini-invasive, ayant une articulation, et appareil chirurgical mini-invasif le comprenant
WO2019103294A1 (fr) Dispositif de fixation de dent artificielle
WO2019132529A1 (fr) Implant dentaire

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10859000

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10859000

Country of ref document: EP

Kind code of ref document: A1