WO2008146983A1 - A spinal implant cage and an one-touch holder for manipulating the same - Google Patents

A spinal implant cage and an one-touch holder for manipulating the same Download PDF

Info

Publication number
WO2008146983A1
WO2008146983A1 PCT/KR2007/003488 KR2007003488W WO2008146983A1 WO 2008146983 A1 WO2008146983 A1 WO 2008146983A1 KR 2007003488 W KR2007003488 W KR 2007003488W WO 2008146983 A1 WO2008146983 A1 WO 2008146983A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
shaft
cage
knob
grip portion
Prior art date
Application number
PCT/KR2007/003488
Other languages
French (fr)
Inventor
Choon Sung Lee
Min Sik Shin
Jin Soon Kim
Original Assignee
Gs Medical 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 Gs Medical Co., Ltd. filed Critical Gs Medical Co., Ltd.
Publication of WO2008146983A1 publication Critical patent/WO2008146983A1/en

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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A61F2/447—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • A61F2002/30785—Plurality of holes parallel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30891—Plurality of protrusions
    • A61F2002/30892—Plurality of protrusions parallel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4625—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
    • A61F2002/4628—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping

Definitions

  • the present invention relates to a spinal implant cage and a one-touch holder, and more particularly, to a spinal implant cage, which is inserted between vertebrae to be used for maintaining a space between the vertebrae and coapting the vertebrae when various spine-related orthopedic operations are performed, and a one -touch holder that can conveniently insert the cage at a predetermined location.
  • joint and spinal diseases frequently generated in old age, there are fractures caused by an impact to a weaken bone.
  • degenerative arthritis caused by an aging process is generated on hip joint, so that necrosis is progressed or the patient cannot walk and sit due to a pain.
  • Such joint and spinal diseases can be frequently generated to young people.
  • the basic cause of the joint and spmal diseases is a damage caused by a traumatic injury, and the joint and spinal diseases can be frequently caused by an incorrect posture or an inherent factor.
  • An object of the present invention is to provide a spinal implant cage and a one-touch holder, in which a sleeve adjusts a movement of a grip portion formed on an end of the shaft while the sleeve is moved along a body of a shaft according to a movement of balls mounted between a knob and the sleeve, and thus, a fastening protrusion formed on an end of the grip portion and a concavo-convex portion formed on one end of the spmal implant cage can be engaged and securely fixed to each other, whereby the cage can be conveniently and safely inserted when the surgical operation for the spinal implant is performed.
  • a spinal implant cage having a cavity formed in a body thereof to place a bone growth substance therein and being inserted between vertebrae to connect the vertebrae.
  • the cage has a coupling portion formed at one side of the body to ensure coupling with a one-touch holder for spinal implant, and the coupling portion is formed with a guide groove for determining a coupling direction between the cage and the one-touch holder.
  • a one-touch holder for a spinal implant which comprises a shaft having a bifurcated grip portion formed at one side of a body of the shaft to fix a spinal implant cage, and an engaging screw formed at the other side of the body; a sleeve having a through-hole formed to receive the other side of the shaft therein, and a plurality of holes formed at regular intervals at an upper end of a body of the sleeve; a knob constructed to be coupled to the upper end of the sleeve such that the knob can be moved by a certain distance along an outer circumferential surface of the sleeve, the knob having a tapered rotation groove formed in a body of the knob along an inner circumferential surface of the knob; a plurality of balls mounted between the holes formed in the sleeve and the rotation groove formed along the inner circumferential surface of the knob so as to control a movement of the sleeve
  • a bifurcated grip portion is formed at one end of a shaft of the one-touch holder in order to fix the implant cage thereto, a sleeve is formed on an outer circumference surface of the shaft to make the sleeve.
  • FIG. 1 is a perspective view of a spinal implant cage according to the present invention
  • FIG. 2 is a left side view of the spinal implant cage according to the present invention.
  • FIG. 3 is an exploded perspective view of a one-touch holder for a spinal implant according to the present invention.
  • FIG. 4 is a plan view of a shaft shown in Fig. 3;
  • FIG. 5 is a front view of the shaft shown in Fig. 3;
  • Fig. 6 is a right side view of the shaft shown in Fig. 3;
  • Fig. 7 is a sectional view of a sleeve shown in Fig. 3;
  • Fig. 8 is a left side view of a knob shown in Fig. 3;
  • Fig. 9 is a sectional view of the knob shown in Fig. 3;
  • FIG. 10 is a sectional view showing a coupling state of the sleeve and the knob
  • FIG. 11 is a front view of a handle shown in Fig. 3;
  • Fig. 12 is a sectional view of the handle shown in Fig. 3;
  • Fig. 13 is a left side view of a head shown in Fig. 3;
  • Fig. 14 is a sectional view of the head shown in Fig. 3;
  • Fig. 15 is a sectional view showing that the spinal implant cage is not yet fixed by means of the one-touch holder according to the present invention.
  • Fig. 16 is a sectional view showing that the spmal implant cage is fixed by means of the one-touch holder according to the present invention.
  • FIG. 1 is a perspective view of a spinal implant cage according to the present invention
  • Fig. 2 is a left side view of the spinal implant cage according to the present invention
  • a cavity 110 vertically passing through a body is formed therein for interposing a bone growth substance therein, and a concavo-convex portion 112 is formed on an outer surface of the body in order to increase a contact area between the vertebrae. Except a side to be inserted between the vertebrae, five surfaces are opened so that the bone can be grown through the open surfaces.
  • the side of the body is streamlined so that the body is easily inserted into the vertebrae, and the other side of the body is formed with a coupling portion 114 for coupling the body to the one-touch holder according to the present invention.
  • the coupling portion 114 is formed with a concavo-convex portion, which can be engaged to a fastening protrusion formed on an end of the one-touch holder.
  • the coupling portion is also formed with a guide groove 111 for determining a coupling direction with the fastening protrusion of the one-touch holder and allowing the coupling portion to be securely coupled with the one touch holder.
  • FIG. 3 is an exploded perspective view of a one-touch holder for a spinal implant according to the present invention
  • Figs. 4 to 12 are views showing the respective elements of the one-touch holder shown in Fig. 3.
  • the one-touch holder for a spinal implant comp ⁇ ses a shaft 240 having a bifurcated grip portion 244 formed at one side of a body of the shaft to fix a spinal implant cage 100, and an engaging screw 241 formed at the other side of the body; a sleeve 230 having a through-hole 234 formed to receive the other side of the shaft 240 therein, and a plurality of holes 232 formed at regular intervals at an upper end of a body of the sleeve; a knob 250 constructed to be coupled to the upper end of the sleeve 230 such that the knob can be moved by a certain distance along an outer circumferential surface of the sleeve 230, the knob having a tapered rotation groove 253 formed in a body of the knob along an inner circumferential surface of the knob and a grasping groove 251 formed on an outside of the body thereof; a plurality of balls 260 mounted between the holes 232 formed in the slee
  • the shaft 240 of the one-touch holder 200 for a spinal implant has a bar-shape
  • the engaging screw 241 is formed at one end of the shaft to couple the shaft with the head 210
  • the other end of the body is bifurcated to form the grip portion 244 having a forceps-shape.
  • the engaging screw 241 is formed such that a diameter of a lower portion thereof into which the handle 220 is inserted is smaller than that of a middle portion thereof to determine a location of the handle 220 and to prevent the handle 220 from being moved downward when the handle 220 is inserted.
  • a fixing groove 242 with a certain depth is formed along an outer circumference surface of the shaft 240 so that the balls 260 are positioned in the knob 250 and the sleeve 230 when the knob 250 is rotated into a locking state.
  • a flexible portion 243 is formed by a groove and formed with a depth along an outer circumference surface of the body, so that the cage 100 can be coupled with and separated from one end of the grip portion 244 by controlling a movement of the grip portion 244 in response to a movement of the sleeve 230.
  • the grip portion 244 is tapered so that a diameter thereof is increased as it goes toward an end. This makes it possible to easily couple and separate the g ⁇ p portion to and from the cage 100 since a degree of widening the end can be adjusted as the grip portion 244 is inserted into the sleeve 230.
  • the knob 250 when the knob 250 is rotated to move the sleeve 230 toward the grip portion 244, the balls 260 provided between the knob 250 and the sleeve 230 are engaged with the fixing groove 242 of the shaft 240, and the balls 260 are pressurized by the tapered portion formed in the rotation groove 253 of the knob 250, so that the knob comes in a locking state.
  • the grip portion 244 of the shaft 240 is inserted into the sleeve 230, so that the fastening protrusion 245 formed at an end of the grip portion 244 is engaged and coupled with the coupling portion 114 of the cage 100.
  • the knob 250 is rotated in the opposite direction to move the balls 260 from the fixing groove 242 of the shaft 240 and simultaneously the tapered portion formed in the rotation groove 253 of the knob 250. Then, the sleeve 230 is moved to expose the grip portion 244 of the shaft 240 to make the knob 230 come in a release state.
  • the fastening protrusion 245 formed at an end of the shaft 240 has a semi-spherical protrusion formed thereon so that this semi- spherical protrusion can be inserted along the guide groove 111 of the cage 100.
  • the sleeve 230 has a tube shape in which the through-hole 234 is formed in a central portion of the body thereof so that the shaft 240 can be inserted into the sleeve, and the plurality of holes 232 are formed at regular intervals on an upper end of the sleeve.
  • the holes 232 can control an irregular movement of the balls 260 according to the rotating direction of the knob 250, and the hole has a diameter smaller than the ball 260 so as to prevent the ball 260 from escaping therefrom when the sleeve 230 is separated from the shaft 240.
  • a through-hole 252 is formed at a central portion of a body of the knob 250 so that the sleeve 230 can be inserted into the knob 250, and a plurality of grasping grooves 251 are formed on an outer circumference surface of the knob to facilitate rotation of the knob.
  • the rotation groove 253 having a predetermined depth is formed along an inner circumference surface of the knob on a portion at which the holes 232 formed on the sleeve 230 are positioned.
  • the rotation groove 253 is tapered so that the rotation groove becomes narrow as it goes toward an upper side, that is, the handle 220, so that if the knob 250 is rotated to move the sleeve 230 to the grip portion 244, the tapered portion pressurizes the balls 260 to make the sleeve 230 and the shaft 240 come in a locking state
  • Fig. 10 is a sectional view showing a coupling state of the sleeve 230 and the knob
  • Rotation protrusions are formed on predetermined positions of the knob 250 and the sleeve 230 so that the knob 250 rotates and moves along an outer circumference surface of the sleeve 230.
  • the knob 250 is constructed such that the knob is not separated from the sleeve 230.
  • a plurality of grasp grooves 222 are formed on a surface of the body of the handle 220 to grasp the handle with ease, and the through- hole 224 is formed in the central portion of the body so that a side of the shaft 240 can be inserted thereinto.
  • the handle 220 since the one-touch holder is the medical instrument used in the surgical operation, the handle 220 has a coarse coating surface to prevent the operator from dropping the one-touch holder or the one-touch holder from sliding in the hand.
  • the head 210 has a plurality of grasp grooves 212 formed on a side of a body thereof to facilitate a rotation of the head, and a fixing groove 214 formed in the body to have a threaded portion formed on a wall surface of the fixing groove to allow the engaging screw 241 of the shaft 240 to be fixedly inserted in the fixing groove.
  • the head 210 is fixed to one end of the shaft 240 to prevent the elements from being separated.
  • FIGs. 15 and 16 are views showing that the spmal implant cage is fixed using the one-touch holder according to the present invention.
  • the sleeve 230 can be moved along the body of the shaft.
  • the sleeve 230 is moved toward the handle 220 to make the grip portion 244 of the shaft 240 come into a widened state
  • the balls 260 located between the sleeve 230 and the knob 250 are positioned on a non tapered portion of the rotation groove 253 of the knob 250, so that the balls are not pressurized by the knob 250 to make the sleeve 230 and the shaft 240 come into a release state. Accordingly, the sleeve 230 can be moved along the body of the shaft 240.
  • the balls 260 are placed on the tapered portion in the rotation groove 253 of the knob 250 and pressurized by a wall surface of the rotation groove 253, so that the balls partially get out of the holes 232 formed on the sleeve 230. Accordingly, the balls come into contact with the fixing groove 242 of the shaft 240, so that the sleeve 230 and the shaft 240 become in a locking state.
  • a spinal implant cage and a one-touch holder according to the present invention can be utilized conveniently when various orthopedic surgical operations for the spme are accurately and safely performed.

Landscapes

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

Abstract

The present invention relates to a spinal implant cage and a one-touch holder, and more par¬ ticularly, to a spinal implant cage, which is inserted between vertebrae to be used for maintaining a space between the vertebrae and coapting the vertebrae when various spine-related orthopedic operations are performed, and a one-touch holder that can conveniently insert the cage at a pre¬ determined location. In a one-touch holder for a spinal implant of the present invention, a bifurcated grip portion is formed at one end of a shaft of the one-touch holder in order to fix the implant cage thereto, a sleeve is formed on an outer circumference surface of the shaft to make the sleeve. Thus, a movement of the grip portion can be adjusted in a response to a movement of the sleeve, so that the implant cage can be inserted and positioned conveniently and safely at a predetermined location.

Description

Description
A SPINAL IMPLANT CAGE AND AN ONE-TOUCH HOLDER FOR MANIPULATING THE SAME
Technical Field
[1] The present invention relates to a spinal implant cage and a one-touch holder, and more particularly, to a spinal implant cage, which is inserted between vertebrae to be used for maintaining a space between the vertebrae and coapting the vertebrae when various spine-related orthopedic operations are performed, and a one -touch holder that can conveniently insert the cage at a predetermined location.
[2]
Background Art
[3] In joint and spinal diseases frequently generated in old age, there are fractures caused by an impact to a weaken bone. In addition, degenerative arthritis caused by an aging process is generated on hip joint, so that necrosis is progressed or the patient cannot walk and sit due to a pain. Such joint and spinal diseases can be frequently generated to young people. The basic cause of the joint and spmal diseases is a damage caused by a traumatic injury, and the joint and spinal diseases can be frequently caused by an incorrect posture or an inherent factor.
[4] As the medical technique has been developed, medical treatments for the joint disease have also been developed day by day. In the medical treatments for the joint disease, the most excellent medical treatment is an artificial joint operation in which a portion of abraded bone is removed and an artificial implant is inserted therein.
[5] As a current surgical operation for a herniation of intervertebral disk, cervical disk disc and the like, there is used a method in which a damaged disk between the vertebrae is removed, a cage which is a plastic or metal structure for supplying bone is installed at the removed portion in order to maintain height of the disc and assimilate the cage and vertebrae, and bone separated from patient's pelvis or the like is transplanted in the structure to connect upper and lower vertebrae.
[6] In the prior art, when the spinal surgical operation, one side of the cage is fixed to a holder and the cage is then inserted between vertebrae. At this time, there is a need for a two-step process, m which an end of the holder having a male thread formed thereon is inserted into a female thread of a fixing hole formed on one side of the cage to couple the holder with the cage and a concavo-convex portion formed on an outside of the hole is fixed. If the cage is fixed to the holder by such a manner, the cage is securely fixed to the holder, so that there is no concern that the cage is detached from the holder in the surgical operation. However, when the cage is inserted into the operated region and detached from the holder, the concavo-convex portion of the cage should be separated and a screw formed at the other end of the holder should be rotated to separate the male thread formed on the end of the holder from the female thread of the fixing hole, so that it is extremely troublesome to perform the above process in the surgical operation. Consequently, there is a problem in that an accuracy of the surgical operation can be lowered.
[7]
Disclosure of Invention Technical Problem
[8] The present invention is conceived to solve the aforementioned problems. An object of the present invention is to provide a spinal implant cage and a one-touch holder, in which a sleeve adjusts a movement of a grip portion formed on an end of the shaft while the sleeve is moved along a body of a shaft according to a movement of balls mounted between a knob and the sleeve, and thus, a fastening protrusion formed on an end of the grip portion and a concavo-convex portion formed on one end of the spmal implant cage can be engaged and securely fixed to each other, whereby the cage can be conveniently and safely inserted when the surgical operation for the spinal implant is performed.
[9]
Technical Solution
[10] According to an aspect of the present invention for achieving the object, there is provided a spinal implant cage having a cavity formed in a body thereof to place a bone growth substance therein and being inserted between vertebrae to connect the vertebrae. The cage has a coupling portion formed at one side of the body to ensure coupling with a one-touch holder for spinal implant, and the coupling portion is formed with a guide groove for determining a coupling direction between the cage and the one-touch holder.
[11] In addition, according to an aspect of the present invention for achieving the object, there is provided a one-touch holder for a spinal implant, which comprises a shaft having a bifurcated grip portion formed at one side of a body of the shaft to fix a spinal implant cage, and an engaging screw formed at the other side of the body; a sleeve having a through-hole formed to receive the other side of the shaft therein, and a plurality of holes formed at regular intervals at an upper end of a body of the sleeve; a knob constructed to be coupled to the upper end of the sleeve such that the knob can be moved by a certain distance along an outer circumferential surface of the sleeve, the knob having a tapered rotation groove formed in a body of the knob along an inner circumferential surface of the knob; a plurality of balls mounted between the holes formed in the sleeve and the rotation groove formed along the inner circumferential surface of the knob so as to control a movement of the sleeve depending on rotation of the knob; a handle having a through-hole formed at a central portion of a body of the handle to receive the other end of the shaft therein; and a head inserted into an upper end of the handle and engaged with the engaging screw of the shaft to prevent the handle from coming off.
[12]
Advantageous Effects
[13] In a one-touch holder for a spinal implant according to the present invention, a bifurcated grip portion is formed at one end of a shaft of the one-touch holder in order to fix the implant cage thereto, a sleeve is formed on an outer circumference surface of the shaft to make the sleeve. Thus, a movement of the grip portion can be adjusted in a response to a movement of the sleeve, so that the implant cage can be inserted and positioned conveniently and safely at a predetermined location.
[14]
Brief Description of the Drawings
[15] Fig. 1 is a perspective view of a spinal implant cage according to the present invention;
[16] Fig. 2 is a left side view of the spinal implant cage according to the present invention;
[17] Fig. 3 is an exploded perspective view of a one-touch holder for a spinal implant according to the present invention;
[18] Fig. 4 is a plan view of a shaft shown in Fig. 3;
[19] Fig. 5 is a front view of the shaft shown in Fig. 3;
[20] Fig. 6 is a right side view of the shaft shown in Fig. 3;
[21] Fig. 7 is a sectional view of a sleeve shown in Fig. 3;
[22] Fig. 8 is a left side view of a knob shown in Fig. 3;
[23] Fig. 9 is a sectional view of the knob shown in Fig. 3;
[24] Fig. 10 is a sectional view showing a coupling state of the sleeve and the knob;
[25] Fig. 11 is a front view of a handle shown in Fig. 3;
[26] Fig. 12 is a sectional view of the handle shown in Fig. 3;
[27] Fig. 13 is a left side view of a head shown in Fig. 3;
[28] Fig. 14 is a sectional view of the head shown in Fig. 3;
[29] Fig. 15 is a sectional view showing that the spinal implant cage is not yet fixed by means of the one-touch holder according to the present invention; and
[30] Fig. 16 is a sectional view showing that the spmal implant cage is fixed by means of the one-touch holder according to the present invention. [31]
Best Mode for Carrying Out the Invention
[32] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to accompanying drawings.
[33] Fig. 1 is a perspective view of a spinal implant cage according to the present invention, and Fig. 2 is a left side view of the spinal implant cage according to the present invention;
[34] Referring to Fig. 1 and Fig. 2, a cavity 110 vertically passing through a body is formed therein for interposing a bone growth substance therein, and a concavo-convex portion 112 is formed on an outer surface of the body in order to increase a contact area between the vertebrae. Except a side to be inserted between the vertebrae, five surfaces are opened so that the bone can be grown through the open surfaces. In addition, the side of the body is streamlined so that the body is easily inserted into the vertebrae, and the other side of the body is formed with a coupling portion 114 for coupling the body to the one-touch holder according to the present invention. The coupling portion 114 is formed with a concavo-convex portion, which can be engaged to a fastening protrusion formed on an end of the one-touch holder. The coupling portion is also formed with a guide groove 111 for determining a coupling direction with the fastening protrusion of the one-touch holder and allowing the coupling portion to be securely coupled with the one touch holder.
[35] Fig. 3 is an exploded perspective view of a one-touch holder for a spinal implant according to the present invention, and Figs. 4 to 12 are views showing the respective elements of the one-touch holder shown in Fig. 3.
[36] First of all, the one-touch holder for a spinal implant according to the present invention compπses a shaft 240 having a bifurcated grip portion 244 formed at one side of a body of the shaft to fix a spinal implant cage 100, and an engaging screw 241 formed at the other side of the body; a sleeve 230 having a through-hole 234 formed to receive the other side of the shaft 240 therein, and a plurality of holes 232 formed at regular intervals at an upper end of a body of the sleeve; a knob 250 constructed to be coupled to the upper end of the sleeve 230 such that the knob can be moved by a certain distance along an outer circumferential surface of the sleeve 230, the knob having a tapered rotation groove 253 formed in a body of the knob along an inner circumferential surface of the knob and a grasping groove 251 formed on an outside of the body thereof; a plurality of balls 260 mounted between the holes 232 formed in the sleeve 230 and the rotation groove 253 formed along the inner circumferential surface of the knob 250 so as to control a movement of the sleeve 230 depending on rotation of the knob 250; a handle 220 having a through-hole 224 formed at a central portion of a body of the handle to receive the other end of the shaft 240 therein and a grasping groove 222 formed on an outside of the body thereof; and a head 210 inserted into an upper end of the handle 220 and engaged with the engaging screw 241 of the shaft 240 to prevent the handle 220 from coming off.
[37] The elements of the one-touch holder for a spinal implant according to the present invention will be described as follows.
[38] Referring to Figs. 4 to 6, the shaft 240 of the one-touch holder 200 for a spinal implant according to the present invention has a bar-shape, the engaging screw 241 is formed at one end of the shaft to couple the shaft with the head 210, and the other end of the body is bifurcated to form the grip portion 244 having a forceps-shape. The engaging screw 241 is formed such that a diameter of a lower portion thereof into which the handle 220 is inserted is smaller than that of a middle portion thereof to determine a location of the handle 220 and to prevent the handle 220 from being moved downward when the handle 220 is inserted.
[39] At a lower portion of a location into which the handle 220 is inserted, that is, at a portion at which the sleeve 230 and the knob 250 are positioned, a fixing groove 242 with a certain depth is formed along an outer circumference surface of the shaft 240 so that the balls 260 are positioned in the knob 250 and the sleeve 230 when the knob 250 is rotated into a locking state.
[40] At a portion at which the grip portion 244 is initiated, a flexible portion 243 is formed by a groove and formed with a depth along an outer circumference surface of the body, so that the cage 100 can be coupled with and separated from one end of the grip portion 244 by controlling a movement of the grip portion 244 in response to a movement of the sleeve 230. Also, the grip portion 244 is tapered so that a diameter thereof is increased as it goes toward an end. This makes it possible to easily couple and separate the gπp portion to and from the cage 100 since a degree of widening the end can be adjusted as the grip portion 244 is inserted into the sleeve 230. For example, when the knob 250 is rotated to move the sleeve 230 toward the grip portion 244, the balls 260 provided between the knob 250 and the sleeve 230 are engaged with the fixing groove 242 of the shaft 240, and the balls 260 are pressurized by the tapered portion formed in the rotation groove 253 of the knob 250, so that the knob comes in a locking state. In addition, the grip portion 244 of the shaft 240 is inserted into the sleeve 230, so that the fastening protrusion 245 formed at an end of the grip portion 244 is engaged and coupled with the coupling portion 114 of the cage 100. In the meantime, when the cage 100 is separated from the one-touch holder 200, the knob 250 is rotated in the opposite direction to move the balls 260 from the fixing groove 242 of the shaft 240 and simultaneously the tapered portion formed in the rotation groove 253 of the knob 250. Then, the sleeve 230 is moved to expose the grip portion 244 of the shaft 240 to make the knob 230 come in a release state. The fastening protrusion 245 formed at an end of the shaft 240 has a semi-spherical protrusion formed thereon so that this semi- spherical protrusion can be inserted along the guide groove 111 of the cage 100.
[41] Referring to Fig. 7, the sleeve 230 has a tube shape in which the through-hole 234 is formed in a central portion of the body thereof so that the shaft 240 can be inserted into the sleeve, and the plurality of holes 232 are formed at regular intervals on an upper end of the sleeve. The holes 232 can control an irregular movement of the balls 260 according to the rotating direction of the knob 250, and the hole has a diameter smaller than the ball 260 so as to prevent the ball 260 from escaping therefrom when the sleeve 230 is separated from the shaft 240.
[42] Referring to Figs. 8 and 9, a through-hole 252 is formed at a central portion of a body of the knob 250 so that the sleeve 230 can be inserted into the knob 250, and a plurality of grasping grooves 251 are formed on an outer circumference surface of the knob to facilitate rotation of the knob. The rotation groove 253 having a predetermined depth is formed along an inner circumference surface of the knob on a portion at which the holes 232 formed on the sleeve 230 are positioned. The rotation groove 253 is tapered so that the rotation groove becomes narrow as it goes toward an upper side, that is, the handle 220, so that if the knob 250 is rotated to move the sleeve 230 to the grip portion 244, the tapered portion pressurizes the balls 260 to make the sleeve 230 and the shaft 240 come in a locking state
[43] Fig. 10 is a sectional view showing a coupling state of the sleeve 230 and the knob
250. Rotation protrusions are formed on predetermined positions of the knob 250 and the sleeve 230 so that the knob 250 rotates and moves along an outer circumference surface of the sleeve 230. The knob 250 is constructed such that the knob is not separated from the sleeve 230.
[44] Referring to Figs. 11 and 12, a plurality of grasp grooves 222 are formed on a surface of the body of the handle 220 to grasp the handle with ease, and the through- hole 224 is formed in the central portion of the body so that a side of the shaft 240 can be inserted thereinto. In addition, since the one-touch holder is the medical instrument used in the surgical operation, the handle 220 has a coarse coating surface to prevent the operator from dropping the one-touch holder or the one-touch holder from sliding in the hand.
[45] Referring to Figs. 13 and 14, the head 210 has a plurality of grasp grooves 212 formed on a side of a body thereof to facilitate a rotation of the head, and a fixing groove 214 formed in the body to have a threaded portion formed on a wall surface of the fixing groove to allow the engaging screw 241 of the shaft 240 to be fixedly inserted in the fixing groove. The head 210 is fixed to one end of the shaft 240 to prevent the elements from being separated.
[46] Figs. 15 and 16 are views showing that the spmal implant cage is fixed using the one-touch holder according to the present invention.
[47] Referring to Fig. 15, if the knob 250 is rotated and moved toward an upper side of the holder 200, that is, toward the handle 200, the sleeve 230 can be moved along the body of the shaft. Thus, the sleeve 230 is moved toward the handle 220 to make the grip portion 244 of the shaft 240 come into a widened state Here, the balls 260 located between the sleeve 230 and the knob 250 are positioned on a non tapered portion of the rotation groove 253 of the knob 250, so that the balls are not pressurized by the knob 250 to make the sleeve 230 and the shaft 240 come into a release state. Accordingly, the sleeve 230 can be moved along the body of the shaft 240.
[48] Referring to Fig. 16, if in a state of Fig 15, the sleeve 230 is moved toward the grip portion 244 of the shaft 240 after the knob 250 is rotated in a state where the coupling portion 114 formed at one end of the cage 100 and the fastening protrusion 245 of the shaft 240 are engaged with each other, the grip portion 244 is inserted into the sleeve 230, so that the flexible portion 243 of the grip portion 244 gets curved and its end is puckered, whereby the cage 100 is fixed to the grip portion 244. In such case, the balls 260 are placed on the tapered portion in the rotation groove 253 of the knob 250 and pressurized by a wall surface of the rotation groove 253, so that the balls partially get out of the holes 232 formed on the sleeve 230. Accordingly, the balls come into contact with the fixing groove 242 of the shaft 240, so that the sleeve 230 and the shaft 240 become in a locking state.
[49] Although the specific embodiments of the present invention have been descπbed, it will be readily understood that various modifications can be made thereto without departing from the scope of the present invention Therefore, the scope of the present invention is not limited to the embodiments described above but is defined by the appended claims and the equivalents thereto.
[50]
Industrial Applicability
[51] A spinal implant cage and a one-touch holder according to the present invention can be utilized conveniently when various orthopedic surgical operations for the spme are accurately and safely performed.
[52]

Claims

Claims
[ 1 ] A spinal implant cage having a cavity formed in a body thereof to place a bone growth substance therein, the spinal implant cage being inserted between vertebrae to connect the vertebrae, wherein the cage has a coupling portion formed at one side of the body to ensure coupling with a one-touch holder for spmal implant, and the coupling portion is formed with a guide groove for determining a coupling direction between the cage and the one-touch holder.
[2] A one-touch holder for spinal implant, comprising: a shaft having a bifurcated grip portion formed at one side of a body of the shaft to fix a spinal implant cage, and an engaging screw formed at the other side of the body, a sleeve having a through-hole formed to receive the other side of the shaft therein, and a plurality of holes formed at regular intervals at an upper end of a body of the sleeve; a knob constructed to be coupled to the upper end of the sleeve such that the knob can be moved by a certain distance along an outer circumferential surface of the sleeve, the knob having a tapered rotation groove formed in a body of the knob along an inner circumferential surface of the knob; a plurality of balls mounted between the holes formed in the sleeve and the rotation groove formed along the inner circumferential surface of the knob so as to control a movement of the sleeve depending on rotation of the knob; a handle having a through-hole formed at a central portion of a body of the handle to receive the other end of the shaft therein; and a head inserted into an upper end of the handle and engaged with the engaging screw of the shaft to prevent the handle from coming off.
[3] The one-touch holder for spinal implant as claimed in claim 2, wherein the grip portion comprises a groove having a depth and formed on an outer circumferential surface of a part of the grip portion bifurcated from the body of the shaft, thereby forming a flexible portion that causes an end of the grip portion to be puckered while the grip portion is curved when the grip portion is inserted into the sleeve.
[4] The one-touch holder for spinal implant as claimed in claim 2, wherein the grip portion has a diameter gradually increasing toward an end of the grip portion so that the grip portion can be puckered while being inserted into the sleeve in response to the movement of the sleeve, thereby fixing the cage.
[5] The one-touch holder for spinal implant as claimed in claim 2, wherein the grip portion has fastening protrusions in vanous shapes formed at an end of the grip portion so as to be engaged with the cage.
[6] The one-touch holder for spinal implant as claimed in claim 5, wherein the fastening protrusions formed at the end of the grip portion comprise hemispherical bosses to be secured along a guide groove formed at one side of the cage.
[7] The one-touch holder for spinal implant as claimed in claim 2, wherein the shaft comprises a fixing groove having a depth and formed at an upper end of the body of the shaft along an outer circumferential surface of the shaft so that the balls can be secured in the fixing groove in response to rotation of the knob, thereby fixing the sleeve to the shaft.
[8] The one-touch holder for spinal implant as claimed in claim 2, wherein the holes formed in the sleeve have a diameter smaller than that of the ball.
PCT/KR2007/003488 2007-05-31 2007-07-19 A spinal implant cage and an one-touch holder for manipulating the same WO2008146983A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0053186 2007-05-31
KR1020070053186A KR100872530B1 (en) 2007-05-31 2007-05-31 A spinal implant cage and an one touch holder for locating it

Publications (1)

Publication Number Publication Date
WO2008146983A1 true WO2008146983A1 (en) 2008-12-04

Family

ID=40075194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2007/003488 WO2008146983A1 (en) 2007-05-31 2007-07-19 A spinal implant cage and an one-touch holder for manipulating the same

Country Status (2)

Country Link
KR (1) KR100872530B1 (en)
WO (1) WO2008146983A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102755206A (en) * 2011-04-29 2012-10-31 麦德塔国际股份公司 Intervertebral implant for the fusion between two vertebral bodies of a vertebral column and corresponding positioning instrument
EP2517675A1 (en) * 2011-04-29 2012-10-31 Medacta International S.A. Instrument for positioning an intervertebral implant for the fusion between two vertebral bodies of a vertebral column
JP2013515579A (en) * 2009-12-28 2013-05-09 セーフ オルソペディクス Implant placement device
WO2017003082A1 (en) * 2015-06-29 2017-01-05 송광용 Cage for spinal interbody fusion
CN113520680A (en) * 2021-09-16 2021-10-22 上海凯利泰医疗科技股份有限公司 Adjustable fusion cage holder

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101652286B1 (en) 2014-06-13 2016-08-30 경북대학교 산학협력단 Fixation pin for fracture-reduction with intramedullary nailing system
KR101862984B1 (en) * 2017-03-07 2018-05-30 주니어데이비드승준 신 Apparatus for inserting the interbody spinal fusion cage
KR20200106613A (en) 2019-03-05 2020-09-15 주식회사 멘티스로지텍 Cage and cage holder
US11382761B2 (en) 2020-04-11 2022-07-12 Neurostructures, Inc. Expandable interbody spacer
US11304817B2 (en) * 2020-06-05 2022-04-19 Neurostructures, Inc. Expandable interbody spacer
US11717419B2 (en) 2020-12-10 2023-08-08 Neurostructures, Inc. Expandable interbody spacer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998001091A1 (en) * 1995-10-16 1998-01-15 Sdgi Holdings, Inc. Implant insertion device
US5766525A (en) * 1992-08-11 1998-06-16 E. Khashoggi Industries Methods for manufacturing articles from sheets of unhardened hydraulically settable compositions
US20060095043A1 (en) * 2004-10-19 2006-05-04 Martz Erik O Adjustable instrumentation for spinal implant insertion

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5766252A (en) 1995-01-24 1998-06-16 Osteonics Corp. Interbody spinal prosthetic implant and method
KR20040022602A (en) * 2002-09-09 2004-03-16 전철구 Cage for intervertebral body fusion

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5766525A (en) * 1992-08-11 1998-06-16 E. Khashoggi Industries Methods for manufacturing articles from sheets of unhardened hydraulically settable compositions
WO1998001091A1 (en) * 1995-10-16 1998-01-15 Sdgi Holdings, Inc. Implant insertion device
US20060095043A1 (en) * 2004-10-19 2006-05-04 Martz Erik O Adjustable instrumentation for spinal implant insertion

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013515579A (en) * 2009-12-28 2013-05-09 セーフ オルソペディクス Implant placement device
CN102755206A (en) * 2011-04-29 2012-10-31 麦德塔国际股份公司 Intervertebral implant for the fusion between two vertebral bodies of a vertebral column and corresponding positioning instrument
EP2517676A1 (en) * 2011-04-29 2012-10-31 Medacta International S.A. Intervertebral implant for the fusion between two vertebral bodies of a vertebral column and corresponding positioning instrument
EP2517675A1 (en) * 2011-04-29 2012-10-31 Medacta International S.A. Instrument for positioning an intervertebral implant for the fusion between two vertebral bodies of a vertebral column
JP2012232124A (en) * 2011-04-29 2012-11-29 Medacta Internatl Sa Intervertebral implant for fusion between two vertebral bodies of vertebral column and corresponding positioning instrument
US8579904B2 (en) 2011-04-29 2013-11-12 Medacta International Sa Instrument for positioning an intervertebral implant for the fusion between two vertebral bodies of a vertebral column
US9138333B2 (en) 2011-04-29 2015-09-22 Medacta International Sa Intervertebral implant for the fusion between two vertebral bodies of a vertebral column and corresponding positioning instrument
CN102755206B (en) * 2011-04-29 2016-09-21 麦德塔国际股份公司 The intervertebral implant of the fusion between two spinal vertebrals and corresponding locating apparatus
WO2017003082A1 (en) * 2015-06-29 2017-01-05 송광용 Cage for spinal interbody fusion
CN113520680A (en) * 2021-09-16 2021-10-22 上海凯利泰医疗科技股份有限公司 Adjustable fusion cage holder
CN113520680B (en) * 2021-09-16 2022-01-21 上海凯利泰医疗科技股份有限公司 Adjustable fusion cage holder

Also Published As

Publication number Publication date
KR100872530B1 (en) 2008-12-08
KR20080105505A (en) 2008-12-04

Similar Documents

Publication Publication Date Title
WO2008146983A1 (en) A spinal implant cage and an one-touch holder for manipulating the same
US8696681B2 (en) Adjustable interbody introducer device and method
US7491209B2 (en) Instrument guide and implant holder
US7708743B2 (en) Apparatus and method for positioning an implant during surgery
US8617213B2 (en) Low profile transverse connector
US6168631B1 (en) Subtalar implant system and method for insertion and removal
US9254155B2 (en) System and method for assisting with arrangement of a stock instrument with respect to a patient tissue
KR100474747B1 (en) Spinal prosthetic implant and insertion instrument
US7559930B2 (en) Surgical tool and method with an actuation mechanism for controlling reciprocation and locking of an anti-rotation member relative to an engagement member for facilitating positioning of an intervertebral device
US9498261B2 (en) Laminar hook insertion device
US20090012529A1 (en) Device and method for delivery of multiple heterogenous orthopedic implants
US8029514B2 (en) Bone screw removal system
US20160310180A1 (en) Anterior spinal bone plate holding system and method
JP2012517886A (en) Multifunctional surgical instrument and method for use in inserting an implant between two bones
JP2000505323A (en) Bone fixation device and device for inserting it
AU2009219986B2 (en) Acetabular alignment guide
US20210100629A1 (en) Systems and methods to adjust bone cut positioning based on bone hardness
WO2012127267A1 (en) A pedicular anchoring system
JP2010069312A (en) Insertion tool and insertion guide system
KR102190053B1 (en) Clamp device for surgical guide wire
JP2021191416A (en) Rasp holder
JP2020014527A (en) Artificial hip joint replacement appliances and artificial hip joint replacement surgery system using them

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: 07768815

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: 07768815

Country of ref document: EP

Kind code of ref document: A1