CN1780586A - Device for immobilizing a connecting rod in an osseous anchoring element of a rachidian implant - Google Patents
Device for immobilizing a connecting rod in an osseous anchoring element of a rachidian implant Download PDFInfo
- Publication number
- CN1780586A CN1780586A CN 200380109214 CN200380109214A CN1780586A CN 1780586 A CN1780586 A CN 1780586A CN 200380109214 CN200380109214 CN 200380109214 CN 200380109214 A CN200380109214 A CN 200380109214A CN 1780586 A CN1780586 A CN 1780586A
- Authority
- CN
- China
- Prior art keywords
- fixture
- profile
- tooth
- screw
- anchoring element
- 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.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (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)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
A connecting link (2) fixing device in a bone anchoring element (3) of a spine implant (4) comprises a bone anchoring element (3) and a jamming element (5), wherein the bone anchoring element (3) comprises stabilizing devices (14, 15) which can elastically deform under the effect of trust F, and the jamming element comprises projections (34, 35) which are matched with the stabilizing devices (14, 15) to fix the jamming element (5) on the bone anchoring element (3), and further a jamming bolt (31) which can stop the rotation and the movement of the connecting link (2) between the bone anchoring element (3) and the jamming element (5).
Description
The present invention relates to a kind of connecting rod fixture in the osseous anchoring element of spinal implant.
Known have various dissimilar fixtures because the special construction of these fixtures, so they can check connecting rod in the osseous anchoring element of spinal implant rotation and move.
Fixture of the present invention is intended to improve blocks the firm performance of element on osseous anchoring element, blocks for the fastening of connecting rod on the one hand simultaneously, is the fixing of fastening maintenance onrelevant of tightening member on the other hand.
Fixture of the present invention comprises that an osseous anchoring element and one block element, described osseous anchoring element is included in the stabilising arrangement of the following meeting of the effect strain of thrust F, the described element that blocks comprises the protuberance that cooperates with described stabilising arrangement on the one hand so that can the described element that blocks be fixed on the described osseous anchoring element gum, comprises one on the other hand and can check connecting rod at osseous anchoring element with block and rotate between the element and the mobile screw that blocks.
Fixture of the present invention comprises:
An osseous anchoring element, this osseous anchoring element has a head that comprises two vertical walls, these two walls limit a U type central opening, the bottom profile of this opening is that part is cylindrical, each vertical wall is made of the median plane of a side direction crimping, and each side of described median plane sidepiece all is embedded with flexure strip, and described flexure strip is separated by vertical channel and described median plane respectively, have on their top a hook tooth is arranged respectively
With one block element, this block element comprise a profile be the columniform groove of part, one screw that leads to inside grooves, one cooperate with described screw block screw and some protuberances, described protuberance fuses with a tooth that cooperates flexure strip respectively.
Fixture of the present invention comprises an osseous anchoring element, has a hole of leading to U type central opening inside on the median plane of each vertical wall of this osseous anchoring element.
Fixture of the present invention comprises an osseous anchoring element, the flexure strip of its head comprises a tooth respectively on their top, and the outer mold surface of tooth is projection and inclination.
Fixture of the present invention comprises that is blocked an element, its lower surface along with axle XX ' the parallel direction of connecting rod, comprising a profile is the columniform groove of part.
Fixture of the present invention comprises that is blocked an element, and the centre of an end face relative with the bottom surface of blocking element has a screw that leads in the groove, blocks screw and is fitted in the screw.
Fixture of the present invention comprises that is blocked an element, this blocks element and comprises first pair of relative side, this has a die cavity respectively to the side above described groove, and this die cavity cooperates with the manipulation of blocking element and localized apparatus above the described osseous anchoring element.
Fixture of the present invention comprises that is blocked an element, this blocks element and comprises second pair of relative side, and each described second pair side is describedly blocked in the element width direction and fused with two protuberances that are positioned on described first pair of side extended line with being in.
Fixture of the present invention comprises that is blocked an element, and this each protuberance that blocks element has an inclined-plane or hypotenuse respectively at its top, and the basal plane bottom, bottom of inclined-plane or hypotenuse is in containing described first pair of lateral any lateral plane.
Fixture of the present invention comprises that is blocked an element, and this each protuberance that blocks element is respectively circular profile in its underpart and with the inclined-plane opposite position.
Fixture of the present invention comprises that is blocked an element, and this standoff distance d of two protuberances that blocks element is less than the distance between two teeth of the same vertical wall of described osseous anchoring element.
Fixture of the present invention comprises that some are in that be applied under the effect of blocking the thrust F on the element can be towards the flexure strip of the direction lateral deformation of the median plane of each wall of osseous anchoring element.
Fixture of the present invention comprises:
An osseous anchoring element that has head, it comprises two butt vertical walls, these two vertical walls limit a U type central opening, the profile of open bottom is that part is cylindrical, each vertical wall is made of a side direction crimping median plane, and described median plane is along flexible of the equal set in each limit of lateral edge, and described flexure strip is separated by vertical channel and described median plane respectively, described flexure strip comprises a hook tooth respectively at its top
With one block element, this block element comprise a profile be the columniform groove of part, one screw that leads to described inside grooves, one cooperate with described screw block screw and some fuse with the protuberance that a tooth of described flexure strip cooperates respectively.
Fixture of the present invention comprises a head, this head comprises the mutual opposed vertical wall of two butt profiles, these two vertical walls are in the parallel plane, so that limit the U type central opening that first is supported by the axle XX ' of connecting rod, the profile of the bottom of this opening is that part is cylindrical, and limits and described XX ' axle and vertical second opening of first opening.
Fixture of the present invention comprises a head, and this head has two vertical openings that can limit flexure strip on each angle of head, and these flexure strips can strain under the effect of thrust F.
Fixture of the present invention comprises a head that has flexure strip, and these flexure strips comprise a tooth respectively on their top, the hook-type profile of tooth in second opening direction and above the median plane of each vertical wall, turn to.
Fixture of the present invention comprises a head, and each tooth of this head has the outer mold surface of inclination above its hook part and towards opening direction, and what outer mold surface extended outwardly is protruding profile.
Fixture of the present invention comprises that is blocked an element, and the described element that blocks comprises a bottom surface, and along direction this bottom surface parallel with XX ' axle a profile being arranged is the columniform groove of part, so that cooperate with connecting rod; An end face, the middle part of this end face comprise a screw that leads in the groove, block screw and are fitted in this screw; And some parallel by twos sides, have at least two sides to be connected with two tooth-like protuberances respectively.
Fixture of the present invention comprises that is blocked an element, described each protuberance that blocks element comprises that is in the described relative lateral hook part that blocks element of retracted position, and described hook part has certain for d1 from described relative side of blocking element.
Fixture of the present invention comprises:
An osseous anchoring element; This osseous anchoring element is with a head that comprises two vertical walls; These two walls limit a U-shaped central opening; The bottom profile of this opening is that part is cylindrical; Each vertical wall separates by the bottom of a vertical channel with central opening; Described vertical channel provides certain elasticity for each wall along YY ' direction; Each end of described vertical wall has respectively the profile of elastic hook sheet; And one facing to another; Divide the both sides that are located at central opening; Described flexure strip comprises respectively a briar tooth on their top
With one block element, this block element comprise a profile be the columniform groove of part, one lead to that screw in the described groove, one cooperate with described screw block screw and some fuse with the protuberance that a tooth of described flexure strip cooperates respectively.
Fixture of the present invention comprises a head, and each vertical wall of this head surface is within it gone up and have a perpendicular grooves between each hook sheet.
Fixture of the present invention comprises a head, and the flexure strip of this head comprises a tooth respectively on their top, and the hook-type profile of tooth is towards the internal turn of central opening.
Fixture of the present invention comprises a head, and each tooth of this head has the outer mold surface of inclination above its hook part and towards opening direction, and what outer mold surface extended outwardly is the projection profile.
Fixture of the present invention comprises that is blocked an element, and the described element that blocks comprises a bottom surface, and along a direction parallel with XX ' axle, it is the columniform groove of part that there is a profile this bottom surface, so that cooperate with connecting rod; An end face, the middle part of this end face comprise a screw that leads in the groove, block screw and are fitted in this screw; And some two two parallel sides, have at least two sides to fuse with two tooth-like protuberances respectively.
Fixture of the present invention comprises that is blocked an element, and described each side of blocking in being in of the element plane parallel with groove axle XX ' comprises two tooth-like protuberances, and these two protuberances are separated by a vertical ribs with vertical centre groove.
Fixture of the present invention comprises that is blocked an element, the described protuberance sprung parts that blocks element is closed on described lateral opposite with corresponding perpendicular fins.
By will more being expressly understood the present invention, feature of the present invention and the available advantage of the present invention to the description of non-limiting examples below in conjunction with accompanying drawing:
Fig. 1 is the decomposition diagram of expression fixture of the present invention;
Fig. 2 is the perspective view of the osseous anchoring element of expression fixture of the present invention;
Fig. 3 is illustrated in the element that blocks that connecting rod in the osseous anchoring element of fixture of the present invention moves and rotate;
Fig. 4 be explanation install fixture of the present invention block element the time osseous anchoring element strain perspective view;
Fig. 5 is the perspective view of expression fixture when being in the rotation that is assembled into the connecting rod of checking spinal implant and shift position;
Fig. 6 is the decomposition diagram of expression fixture first modification of the present invention;
Fig. 7 is the perspective view of the osseous anchoring element of expression fixture first modification of the present invention;
Fig. 8 is illustrated in the element that blocks that connecting rod in the osseous anchoring element of fixture first modification of the present invention moves and rotate;
Fig. 9 be explanation install fixture first modification of the present invention block element the time osseous anchoring element strain perspective view;
Figure 10 is the perspective view of the expression first modification fixture when being in the rotation that is assembled into the connecting rod of checking spinal implant and shift position;
Figure 11 is the decomposition diagram of expression fixture second modification of the present invention;
Figure 12 and 13 is perspective views of the osseous anchoring element of expression fixture second modification of the present invention;
Figure 14 is illustrated in the element that blocks that connecting rod in the osseous anchoring element of fixture second modification of the present invention moves and rotate;
Figure 15 and 16 are explanations install stop device second modification of the present invention block element the time osseous anchoring element strain sketch map;
Figure 17 and 18 is expression second modification fixture perspective views when being in the rotation that is assembled into the connecting rod of checking spinal implant and shift position.
4 fixtures 1 of spinal implant shown in Fig. 1, it is used for blocking or pinning the rotation of connecting rod 2 with each each spinal bone that becomes spinal column on same horizontal plane and move.
The osseous anchoring element 3 that contains solid parts 6 of a grappling and a receiving-member 7 has been shown among Fig. 2.Anchoring members 6 can be hook-type, or the screwed profile that fuses or do not fuse with receiving-member 7, so as to be fixed on the vertebral body of the vertebra that need carry out and/or in.
Receiving-member 7 is made of a U type head 8, and the top of this head is what open, cooperates so that can and block element 5 with connecting rod 2.
Each vertical wall 9,10 is made of the median plane 13 of a side direction crimping, and flexible 14,15 of the side set of each side of median plane separates described flexure strip and described median plane by vertical channel 16,17 respectively.
The flexure strip 14,15 of head 8 contains a tooth 19,20 respectively at their top, the outer mold surface 21,22 of tooth is towards the outside projection and the inclination of each vertical wall 9,10.
What figure 3 illustrates fixture 1 blocks element 5, and this outer mold surface of blocking element is parallelepiped substantially, each relative face 23,24; 25,26; 27 is parallel in pairs with 28.
Therefore, to contain a profile along the direction parallel with the axle XX ' of connecting rod 2 be the columniform groove 29 of part in the bottom surface 24 of blocking element 5.
The end face 23 that blocks element 5 comprises a threaded hole 30 of leading to groove 29 inside therebetween, will block screw 31 and be fitted in this screw.
First pair of side 25,26 of blocking element 5 comprises a die cavity 32 that matches with the tooth of not shown instrument respectively on groove 29, so just can handle and assemble the described element that blocks on osseous anchoring element 3 to blocking.
Second pair of side 27,28 of blocking element 5 is in the described protuberance 33,34 that blocks the element width direction or be on each side 25,26 extended lines and fuses with two separately.
Therefore, block element 5 and comprise four towards its outside direction and along the protuberance 33,34 that extends with the vertical direction in the plane of containing each side 27,28.
Each protuberance 33,34 comprises the inclined-plane or the hypotenuse 35,36 of points sideways 25,26 directions respectively at its top, the bottom basal plane on each inclined-plane 35,36 is in the plane of containing described each side 25,26.
Each protuberance 33,34 is blocking the circular profile 37,38 of sliding when element 5 is assembled with osseous anchoring element 3 in its bottom facing to inclined-plane 35,36 for making described protuberance respectively on described tooth 19,20.
Between two protuberances 33,34 of same side 27,28 apart from d less than the distance between two teeth 19,20 of the same vertical wall 9,10 of osseous anchoring element 3 heads 8.
In Figure 4 and 5, illustrated the element 5 that blocks on the head 8 of osseous anchoring element 3 is positioned and fixes, in each fixture 1, rotated and move with the vertebral body anchoring of vertebra so that can block connecting rod 2.
The structure of osseous anchoring element on the vertebral body of the vertebra of implementation as required fixed osseous anchoring element 3 or hung.
Be placed in the top of the head 8 of osseous anchoring element 3 with blocking element 5, so that the protuberance 33,34 of same side 27,28 is supported on the corresponding tooth 19,20 of same vertical wall 9,10.
Utilize a unshowned apparatus to apply a thrust on the element 5 blocking, so that the protuberance 33,34 of each side 27,28 makes flexure strip 14,15 distortion of each wall 9,10 of the head 8 of osseous anchoring element 3 from the side.
Because the width difference (Fig. 4) between protuberance 33,34 and the tooth 19,20, so flexure strip 14,15 carries out strain towards the median plane 13 of each vertical wall 9,10 of head 8.
By making each protuberance 33,34 that a round basifacial 37,38 that can slide be arranged, block element 5 so that introduce on the projection outer mold surface 21,22 of each tooth 19,20 that fuses with flexure strip 14,15.
Thrust F should be enough to make the protuberance 33,34 and corresponding teeth 19,20 ratchets of flexure strip 14,15 to be braked.When the profile of each inclined-plane 35,36 and respective teeth 19,20 cooperates (Fig. 5), protuberance 33,34 is stablized.
Equally, the elasticity of utilizing flexure strip 14,15 to be realizing fixing to protuberance 33,34. Protuberance 33,34 is when passing through on the respective teeth 19,20, and protuberance 33,34 is got back to resting position.
Utilization is screwed onto the rotation of blocking screw 31 stop connecting rods 2 in the hole 30 of blocking element 5 and moves then.Under the effect of the power of tightening screw, blocking the part of central opening 11 that screw 31 is locked in connecting rod 2 on the head 8 of osseous anchoring element 3 is on the cylindrical bottom portion 12.
Equally, the power of blocking of 31 pairs of connecting rods 2 of compression screw can be by along vertical mobile will the blocking in the head 8 that element 5 is locked in osseous anchoring element 3 that guides in the opposite direction with the side of described connecting rod.
Fig. 6-10 shows first kind of modification of spinal implant, blocks on same horizontal plane especially for the vertebra that becomes apparatus with each of spinal column that connecting rod 2 rotates and the modification of mobile fixture 1.
For clarity sake, with the said elements components identical with identical label, in case obscure.
The osseous anchoring element 3 that contains an anchoring members 6 and a receiving-member 7 has been shown among Fig. 7.Anchoring members 6 can become hook-type, or the screwed profile for fusing or do not fuse with receiving-member 7, so as to be fixed on the vertebral body of the vertebra that need carry out implementation and/or in.
Receiving-member 7 is made of a U type head 8, and the top of this head is what open, so that can and block element 5 and match with connecting rod 2.
These two vertical openings 11 and 39 can limit on each angle of head 8 can be under thrust F effect the stabilising arrangement 14,15 of strain.
Each butt vertical wall 9,10 is made of a median plane 13, and the height of median plane is limited by second opening 39 of the head 8 by receiving-member 7.
Each median plane 13 is embedded with flexure strip 14,15 along the set laterally of its edge and each side, by vertical channel 16,17 described flexure strip and described median plane is separated respectively.
The median plane 13 of each butt vertical wall 9,10 is opened a hole of not opening 18 that apparatus is hooked, block element 5 and enter in the osseous anchoring element 3 so that can make.
The flexure strip 14,15 of head 8 comprises a tooth 19,20 respectively on their top, the profile 40,41 of hooking of tooth turns to towards second opening, 39 inner rotation and in the top of the median plane 13 of each vertical wall 9,10.
Each tooth 19,20 hooks the top of parts 40,41 and contains the besides profile 42,43 of inclining towards the direction of opening 39 at it, and described outer mold surface is stretched out towards each flexure strip 14,15 by projection profile 44,45.
What figure 8 illustrates fixture 1 blocks element 5, and this outer mold surface of blocking element is parallelepiped substantially, each relative face 23,24; 25,26; 27 is parallel by twos with 28.
Therefore, the bottom surface 24 of blocking element 5 is along the direction parallel with the axle XX ' groove 29 that to comprise a profile be the cylindrical profile of part, so that installing and holding connecting rod 2 during fastening fixture 1.
Be in parallel with the axle XX ' of groove 29 and with each 25,26 vertical planes, side of blocking element 5 in each side 27,28, they be connected to the thickness surplus 46,47 that limits two tooth- like protuberances 33,34 and fuse.
Therefore, blocking element 5 comprises towards its outside two protuberances 33 and two protuberances 34 that extend.
Each protuberance 33,34 comprise respectively one by profile be the equipment of inclined protrusions limit hook parts 48,49, when in blocking the head 8 of element 5, locating at osseous anchoring element 3, the device of described inclined protrusions can cooperate with the parts 40,41 that hook of each tooth 19,20.
It should be noted, each protuberance 33,34 hook indentation place that parts 48,49 all are in the opposite flank 25,26 of blocking element 5,25,26 distance is d1 from the opposite flank.
Each protuberance 33,34 is respectively the inclination outer mold surface 37,38 that described protuberance is slided and flexure strip 14,15 is separated towards the outside of head 8, so that can the gum assembling block element 5 and osseous anchoring element 3.
Fig. 9 and 10 shows can be with the different step of blocking in the head 8 that element 5 is assembled in osseous anchoring element 3, so as to fix connecting rod 2 in each fixture 1 rotation and move, described fixture is anchored in the vertebral body of vertebra.
Before element 5 is blocked in introducing, connecting rod 2 is placed in the central opening 11 of head 8 of osseous anchoring element 3.
Be placed in the top of the head 8 of osseous anchoring element 3 with blocking element 5, so that the protuberance 33,34 of same side 27,28 is supported on the corresponding tooth 19,20 of same vertical wall 9,10.
Utilize a unshowned apparatus to apply a thrust F blocking the vertical substantially direction in element 5 upper edges, so that the protuberance 33,34 of each side 27,28 makes flexure strip 14,15 distortion of each wall 9,10 of the head 8 of osseous anchoring element 3 from the side.
Because the size difference (Fig. 9) between protuberance 33,34 and the tooth 19,20,, flexure strip 14,15 carries out strain so towards the lateral direction of head 8, that is to say along the direction of the median plane 13 of each vertical wall 9,10 that leaves head 8.
Because the bottom 37,38 of profile for tilting that each protuberance 33,34 is contained can slide on the outer mold surface of each tooth 19,20 that fuses with flexure strip 14,15 facilitates guiding and blocks element 5.
Thrust F should be enough to make each parts 40,41 ratchets that hook that hook each corresponding teeth 19,20 of parts 48,49 and flexure strip 14,15 of protuberance 33,34 to be braked.
Utilize the elasticity of flexure strip 14,15 to realize that protuberance 33,34 is when passing through on the respective teeth 19,20 to blocking the stable of element 5, described flexure strip arrives resting position.
By being that the columniform bottom 12 of part of head 8 of osseous anchoring element 3 and profile are to block to slide in the cylindrical groove that the columniform groove 29 of part of element 5 constitutes to regulate connecting rod 2 by profile at one.
Utilize the screw 31 that blocks be screwed onto in the hole 30 of blocking element 5 to check the rotation of connecting rod 2 and move then.Under the effect of screw-driving power, block screw 31 connecting rod 2 is pinned on the columniform bottom 12 of part of the central opening 11 of the head 8 of osseous anchoring element 3.
Equally, the screwing force of 31 pairs of connecting rods 2 of compression screw can be by along will block in the head 8 that element 5 is locked in osseous anchoring element 3 with vertical move that the side of described connecting rod guides in the opposite direction.
Figure 11-18 shows second kind of modification of spinal implant, is becoming the rotation of the connecting rod 2 on the same horizontal plane of vertebra of apparatus and the modification of mobile fixture 1 especially for checking with each of spinal column.
For clarity sake, with the said elements components identical with identical label.
Receiving-member 7 is made of a U type head 8, and the top of this head is what open, cooperates so that can and block element 5 with connecting rod 2.
Each vertical wall 9,10 is separated by the bottom 12 of a vertical channel 50 with central opening 11, and described vertical channel provides certain elasticity for each wall along the vertical direction yy ' of XX ' direction with connecting rod 2.
Elastic and vertical wall 9,10 is respectively the profile of hook sheet 14,15 shapes in each end, and these hook sheets and are in the both sides of central opening 11 toward each other.
Each elastic and vertical wall 9,10 surface is within it gone up and is comprised that between hook sheet 14,15 profile is the columniform perpendicular grooves 51 of part.
Each side of perpendicular grooves 51 has one can guide this otch that blocks element 54 when element 5 is positioned in the U type head 8 blocking.
Each elastic and vertical wall 9,10 between hook sheet 14,15, be drilled with one can make that apparatus hooked lead to hole 18 in the central opening 11 be directed in the osseous anchoring element 3 so that can gum will block element 5.
The hook sheet 14,15 of head 8 comprises a tooth 19,20 respectively on their top, in hook-type profile 40, the 41 turning center openings 11 of tooth.
Each tooth 19,20 is an outer incline profile 42,43 in its top of hooking parts 40,41, and the outer incline profile is extended by the outside direction of projection profile 44,45 towards each hook sheet 14,15.
What figure 14 illustrates fixture 1 blocks element 5, and this outer mold surface of blocking element is parallelepiped substantially, each relative face 23,24; 25,26; 27 is parallel by twos with 28.
Therefore, the bottom surface 24 of blocking element 5 comprises that along the direction parallel with axle XX ' profile is the columniform groove 29 of part, so that hold connecting rod 2 when installation and fastening fixture 1.
The end face 23 that blocks element 5 comprise therebetween one flop to the screw 30 of groove 29 inside, will block screw 31 and be fitted in this screw.
Be in parallel and comprise two tooth- like protuberances 33,34 with each side 27,28 in each 25,26 vertical planes, side of blocking element 5 with the axle XX ' of groove 29.
Therefore, blocking element 5 comprises towards its outside two protuberances 33 and two protuberances 34 that extend.
Each protuberance 33,34 comprise that respectively one hooks parts 48 by what the cylindrical profile of part limited, 49, like this, when in blocking the head 8 of element 5, locating (Figure 15) at osseous anchoring element 3, described hook or link up with sprung parts 48,49 just can with each tooth 19,20 the parts 40,41 that hook cooperate.
Each protuberance 33,34 comprises respectively can make described protuberance slide, and the besides profile 37,38 of inclining that wall 9,10 and hook sheet 14,15 elasticity is separated along YY ' direction, thereby can realize blocking the assembling of element 5 and osseous anchoring element 3.
It should be noted, each side 27,28 vis-a-vis therebetween and a perpendicular grooves 52 that rib 53 is arranged along the edge set arranged between protuberance 33,34, in the time of in blocking the head 8 that element 5 is directed into osseous anchoring element 3, perpendicular grooves can guide blocks element 5.
It should be noted, the hook part 48,49 relative with side 25,26 closed with the corresponding vertical rib 53 that is between each protuberance 33,34.
Each vertical rib 53 all can have the outer mold surface of Any shape, as long as complementary the getting final product of profile of the notch 54 in its profile and each vertical wall 9, the 10 inner surface thickness of head 8 that are set at osseous anchoring element 3.
Figure 15-18 expression can be assembled in variant step in the osseous anchoring element 3 with blocking element 5, so as to fix connecting rod 2 in each fixture 1 rotation and move, described fixture 1 is anchored in the vertebral body of vertebra.
Before element 5 is blocked in insertion, connecting rod 2 is positioned in the central opening 11 of head 8 of osseous anchoring element 3.
It is above-mentioned that to block the installation of element 5 in the head 8 of osseous anchoring element 3 identical with the assembling described in Fig. 1-5.
Block the top that element 5 is installed in the head 8 of osseous anchoring element 3 with above-mentioned, so that the protuberance 33,34 of same side 27,28 is supported on the corresponding tooth 19,20 of same vertical wall 9,10.
Utilize a unshowned apparatus to apply a thrust F blocking the vertical substantially direction in element 5 upper edges, so that the protuberance 33,34 of each side 27,28 makes vertical wall 9,10 and 14,15 distortion of elastic hook sheet from the side.
Because the size difference between protuberance 33,34 and the tooth 19,20, so each vertical wall 9,10 carries out strain outside head 8.
By making each protuberance 33,34 that the bottom 37,38 of the oblique profile that can slide on the outer mold surface of each tooth 19,20 of the elastic hook sheet 14,15 of each elastic wall 9,10 be arranged, facilitate to inject and block element 5.
Thrust F should be enough to make each hook part 48,49 of protuberance 33,34 and hook part 40,41 ratchets of corresponding each tooth 19,20 to be braked.
When protuberance 33,34 after passing through on the respective teeth 19,20, utilize the elasticity of vertical wall 9,10 to make hook plate 14,15 return to the band stop bit and put, thereby realize blocking the fixing of element 5.
By being that the columniform bottom 12 of part of head 8 of osseous anchoring element 3 and profile are to block to slide in the cylindrical groove that the columniform groove 29 of part of element 5 constitutes to regulate connecting rod 2 by profile at one.
Utilize the screw 31 that blocks be screwed onto in the hole 30 of blocking element 5 to check the rotation of connecting rod 2 and move then.Under the effect of the power of twisting screw, block screw 31 and connecting rod 2 is locked on the columniform bottom 12 of part of central opening 11 of head 8 of osseous anchoring element 3.
Equally, the screwing force of 31 pairs of connecting rods 2 of compression screw can be by along vertical mobile will the blocking in the head 8 that element 5 is locked in osseous anchoring element 3 that guides in the opposite direction with the side of described connecting rod.
Utilize an apparatus that is inserted in perpendicular grooves 51 and 52, realize blocking withdrawing from of element 5, thereby make the direction of vertical wall 9,10 outside the head 8 of osseous anchoring element 3 separately.
Should be noted in the discussion above that in addition top description only provides as an example, this does not have any restriction to the present invention.Replace above-mentioned specific embodiments not exceed scope of the present invention with all equivalents.
Claims (26)
1. the fixture of the connecting rod (2) in the osseous anchoring element in spinal implant (4) (3), it is characterized in that fixture comprises that an osseous anchoring element (3) and one block element (5), the effect that described osseous anchoring element is included in thrust F down can strain stabilising arrangement (14,15), the described element (5) that blocks, comprise and described stabilising arrangement (14 on the one hand, 15) cooperate so that the described element (5) that blocks can be fixed to protuberance (33 on the described anchoring element (3), 34), comprise on the other hand one can check connecting rod (2) at osseous anchoring element (3) and block between the element (5) rotate and move block screw (31).
2. according to the fixture of claim 1, it is characterized in that this fixture comprises: an osseous anchoring element (3), with one block element (5), the osseous anchoring element (3) that has head (8) contains two vertical elastic walls (9,10), these two walls limit a U type central opening (11), the profile of the bottom of this opening (12) is that part is cylindrical, each elastic and vertical wall (9,10) is separated by the bottom (12) of a vertical slot (50) with central opening (11), and described vertical slot makes each wall have certain elasticity along YY ' direction, described elastic and vertical wall (9,10) opposed mutually, their each end has the profile of hook sheet (14,15) shape respectively, and be in the both sides of described central opening (11), described hook sheet (14,15) comprises a hook tooth (19,20) respectively on their top; And block element (5) contain a profile be the columniform groove of part (29), one lead to that the inner screw (30) of groove (29), one cooperate with described screw (30) block screw (31) and some protuberances (33,34), described protuberance respectively with to described flexure strip (14,15) tooth (19,20) cooperate, and fuse with flexure strip (19,20).
3. according to the fixture of claim 2, it is characterized in that each elastic and vertical wall (9,10) is upward surperficial and contain a columniform perpendicular grooves of part (51) between hook sheet (14,15) within it, each side of described perpendicular grooves has groove (54).
4. according to the fixture of claim 2, it is characterized in that the hook sheet (14,15) of described head (8) comprises a tooth (19,20) respectively on their top, the hook-type profile (40,41) of tooth turns in central opening (11).
5. according to the fixture of claim 4, it is characterized in that each tooth (19,20) is at its hook part (40,41) top also has outer incline profile (42 towards the direction of opening (11), 43), described outer incline profile is extended outwardly by projection profile (44,45).
6. according to the fixture of claim 2, it is characterized in that the described element (5) that blocks comprises a bottom surface (24), an end face (23), and a plurality of sides (25,26,27,28), described bottom surface comprises the groove (29) of a cylindrical profile of part along the direction parallel with axle XX ', so that cooperate with connecting rod (2), the centre of described end face has a screw (30) that leads in the groove (29), block screw (31) and be fitted in this screw, described side is parallel by twos, wherein at least two sides (27,28) fuse with two tooth-like protuberances (33,34) respectively.
7. according to the fixture of claim 6, it is characterized in that being in each side (27 in the plane parallel with the axle XX ' of groove (29), 28) comprise two tooth-like protuberances (33,34), these two protuberances comprise the hook part (48 that is separated by a perpendicular grooves (52), 49), the edge set along perpendicular grooves has corresponding fin (53).
8. according to the fixture of claim 6, it is characterized in that on the opposite of described side (25,26) described hook part (48,49) being closed by means of corresponding perpendicular fins (53).
9. according to the fixture of claim 1, it is characterized in that this fixture comprises: one has osseous anchoring element (3) and and blocks element (5), the osseous anchoring element (3) that has head (8), this contains two vertical walls (9,10), these two vertical walls limit a U type central opening (11), and the profile of the end of this opening (12) is that part is cylindrical, each vertical wall (9,10) constitute by a median plane (13), each limit of described median plane sidepiece all is embedded with flexure strip (14,15), described flexure strip (14,15) respectively by vertical channel (16,17) separate with described median plane, and comprise a hook tooth (19,20) respectively at an upper portion thereof; And one blocked element (5), block element contain a profile be the columniform groove of part (29), one lead to that screw (30) in the described groove (29), one cooperate with described screw (30) block screw (31), and and a tooth (19,20) protuberance (33 of Pei Heing, 34) fuse with flexure strip (14,15) respectively.
10. according to the fixture of claim 9, it is characterized in that having one on the median plane (13) of described each vertical wall (9,10) leads to the inner hole (18) of U type central opening (11).
11. according to the fixture of claim 9, it is characterized in that the flexure strip (14,15) of described head (8) contains a tooth (19,20) respectively on their top, the outer mold surface of tooth (21,22) is projection and inclination.
12. according to the fixture of claim 9, it is characterized in that the described element (5) that blocks has a bottom surface (24), it is the columniform groove of part (29) that a profile is contained along the direction parallel with the axle XX ' of connecting rod (2) in this bottom surface.
13. according to the fixture of claim 9, it is characterized in that the centre of the end face (23) relative with described bottom surface (24) of blocking element (5) has a screw (30) that leads in the groove (29), block screw (31) and be fitted in this screw.
14. fixture according to claim 9, it is characterized in that the described element (5) that blocks comprises first pair of relative side (25,26), this has a die cavity (32) respectively to the side in the top of described groove (29), this die cavity be used for described osseous anchoring element (3) above the manipulation and the locating apparatus that block element (5) cooperate.
15. fixture according to claim 9, it is characterized in that the described element (5) that blocks contains second pair of opposite flank (27,28), each described second pair side is describedly blocked on the element width direction and is positioned at described each side (25 with being in, 26) two protuberances (33,34) on the extended line are linked to be an integral body.
16. fixture according to claim 9, it is characterized in that described each protuberance (33,34) has an inclined-plane or hypotenuse (35,36) respectively at an upper portion thereof, going to the bottom of inclined-plane or hypotenuse is in any lateral plane of containing described side (25,26).
17., it is characterized in that described each protuberance (33,34) is respectively circular profile (37,38) in its underpart and with inclined-plane (35,36) opposite position according to the fixture of claim 9.
18. according to the fixture of claim 9, the standoff distance d that it is characterized in that described two protuberances (33,34) is less than the distance between two teeth (19,20) of the same vertical wall (9,10) of described osseous anchoring element (3).
19. fixture according to claim 9, it is characterized in that being applied to the thrust F that blocks on the element (5) and pass through protuberance (33,34) and vertical incision (16,17) can make described flexure strip (14,15) towards the direction lateral deformation of the median plane (13) of each wall (9,10) of osseous anchoring element (3).
20. fixture according to claim 1, it is characterized in that described fixture comprises: an osseous anchoring element (3) and that has head (8) blocks element (5), osseous anchoring element (3) comprises two butt vertical walls (9,10), these two vertical walls limit a U type central opening (11), the profile at the end of this opening (12) is that part is cylindrical, each vertical wall (9,10) is made of a median plane (13), and each limit of described median plane sidepiece all is embedded with flexure strip (14,15), described flexure strip (14,15) is separated by vertical channel (16,17) and described median plane respectively, and comprise a hook tooth (19,20) respectively at an upper portion thereof; And one block element (5), this block element comprise a profile be the columniform groove of part (29), one lead to that screw (30) in the described groove (29), one cooperate with described screw (30) block screw (31) and with a tooth (19,20) protuberance (33 of Pei Heing, 34) fuse with flexure strip (14,15) respectively.
21. fixture according to claim 20, it is characterized in that described head (8) comprises the mutual opposed vertical wall (9 of two butt profiles, 10), these two vertical walls are in the parallel plane, so that limit the U type central opening (11) that first is supported by the axle XX ' of connecting rod (2), the profile at the end of this opening (12) is that part is cylindrical, and limits and described XX ' axle and vertical second opening of first opening (11) (39).
22., it is characterized in that described two vertical openings (11,39) can limit flexure strip (14,15), the strain under the effect of thrust F on each angle of head (8) according to the fixture of claim 21.
23. fixture according to claim 22, the flexure strip (14 that it is characterized in that described head (8), 15) comprise a tooth (19 respectively on their top, 20), the hook-type profile (40 of tooth, 41) direction in second opening (39) and turn in the top of the median plane (13) of each vertical wall (9,10).
24., it is characterized in that described each tooth (19,20) is at its hook part (40 according to the fixture of claim 23,41) has the outer mold surface (42 of inclination above and towards opening (39) direction, 43), described outer mold surface is extended outwardly by projection profile (44,45).
25. fixture according to claim 20, it is characterized in that the described element (5) that blocks comprises a bottom surface (24), it is the columniform groove of part (29) that there is a profile this bottom surface along a direction parallel with XX ' axle, so that cooperate with connecting rod (2); An end face (23), the middle part of this end face comprise a screw (30) that leads in the groove (29), block screw (31) and are fitted in this screw; And some parallel by twos sides (25,26,27,28), at least two sides (27,28) fuse with two tooth-like protuberances (33,34) respectively.
26. fixture according to claim 25, it is characterized in that described each protuberance (33,34) comprise a described relative side (25 of blocking element (5) of indentation, 26) hook part (48,49), described hook part certain from described relative side of blocking element apart from d1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR02/16441 | 2002-12-23 | ||
| FR0216441A FR2848808B1 (en) | 2002-12-23 | 2002-12-23 | DEVICE FOR IMMOBILIZATION OF A CONNECTING ROD IN A BONE ANCHORING ELEMENT OF A SPINAL IMPLANT |
| FR03/08701 | 2003-07-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1780586A true CN1780586A (en) | 2006-05-31 |
Family
ID=32406338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200380109214 Pending CN1780586A (en) | 2002-12-23 | 2003-10-14 | Device for immobilizing a connecting rod in an osseous anchoring element of a rachidian implant |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1780586A (en) |
| FR (1) | FR2848808B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496736B (en) * | 2008-01-28 | 2011-11-30 | 斯班莱股份有限公司 | Pedicle screw with a closure device |
| CN101485590B (en) * | 2007-12-31 | 2012-04-04 | 斯班莱股份有限公司 | Pedicle screw with a closure device for securing a rod for stabilization of the vertebral column |
| CN102753108A (en) * | 2009-10-30 | 2012-10-24 | 华沙整形外科股份有限公司 | Direct control spinal implant |
| CN105455927A (en) * | 2016-01-13 | 2016-04-06 | 吴同申 | Two-way pre-stress clamping device used for spine implant and installing method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2697992B1 (en) * | 1992-11-18 | 1994-12-30 | Eurosurgical | Device for attaching to a rod of an organ, in particular for spinal orthopedic instrumentation. |
| FR2729291B1 (en) * | 1995-01-12 | 1997-09-19 | Euros Sa | RACHIDIAN IMPLANT |
| FR2795623B1 (en) * | 1999-07-01 | 2001-11-30 | Gerard Vanacker | SYSTEM FOR OSTEOSYNTHESIS ON THE SPINE, PARTICULARLY FOR THE STABILIZATION OF VERTEBRAES, FIXING AND ANCILLARY ELEMENT FOR SUCH A SYSTEM |
| EP1064885A1 (en) * | 1999-07-02 | 2001-01-03 | Sulzer Orthopedics Ltd. | Spinal fixator |
| DE19951145C2 (en) * | 1999-10-23 | 2003-11-13 | Schaefer Micomed Gmbh | osteosynthesis |
| US6755829B1 (en) * | 2000-09-22 | 2004-06-29 | Depuy Acromed, Inc. | Lock cap anchor assembly for orthopaedic fixation |
-
2002
- 2002-12-23 FR FR0216441A patent/FR2848808B1/en not_active Expired - Fee Related
-
2003
- 2003-10-14 CN CN 200380109214 patent/CN1780586A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485590B (en) * | 2007-12-31 | 2012-04-04 | 斯班莱股份有限公司 | Pedicle screw with a closure device for securing a rod for stabilization of the vertebral column |
| CN101496736B (en) * | 2008-01-28 | 2011-11-30 | 斯班莱股份有限公司 | Pedicle screw with a closure device |
| CN102753108A (en) * | 2009-10-30 | 2012-10-24 | 华沙整形外科股份有限公司 | Direct control spinal implant |
| CN105455927A (en) * | 2016-01-13 | 2016-04-06 | 吴同申 | Two-way pre-stress clamping device used for spine implant and installing method thereof |
| CN105455927B (en) * | 2016-01-13 | 2017-06-20 | 李海明 | A kind of spinal implant two dimension prestressing clamping device and its installation method |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2848808B1 (en) | 2005-10-21 |
| FR2848808A1 (en) | 2004-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1572259A (en) | Device destined to be coupled to at least one support, and in particular a surgical implant destined to be coupled to a bone | |
| CN1178354C (en) | Line guidance device | |
| CN1246624C (en) | Reflector-movable front-lighting lamp for automobile | |
| CN1864644A (en) | Device for the osteosynthesis of proximal humerus fractures | |
| CN1124111C (en) | Cervical spine stabilization method and system | |
| CN1537489A (en) | Expansion device, drawer device and sliding door device | |
| CN1735752A (en) | Collapsible nut | |
| CN1313068A (en) | Vertebral supporting system | |
| CN101052355A (en) | Multi-axial anchor assemblies for spinal implants and methods | |
| CN1967730A (en) | Stand for a display device | |
| CN1251627C (en) | Shoe with members for slope walk | |
| CN1246041A (en) | Spine distraction implant and method | |
| CN1704643A (en) | Automotive headlamp | |
| CN1639018A (en) | Synthetic resin cap, closing device, and packaged beverage | |
| CN1791366A (en) | Condensing skeletal implant that facilitate insertion | |
| CN1902368A (en) | Floor profile arrangement comprising a joint | |
| CN1780586A (en) | Device for immobilizing a connecting rod in an osseous anchoring element of a rachidian implant | |
| CN2791533Y (en) | Stand for air conditioner | |
| CN1822447A (en) | Intermediate connector | |
| CN1934617A (en) | Supporting element for string musical instruments | |
| CN101065082A (en) | Intervertebral implant and spine stabilisation device containing it | |
| CN1281387C (en) | Electric razor | |
| CN1688844A (en) | Illumination device | |
| CN1032187C (en) | Watch band | |
| CN2807556Y (en) | Lamp socket used for single socket lamp and lighting device using the lamp socket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SURGERY EXAMINING COOPERATIVE CO., LTD. Free format text: FORMER OWNER: EURO SURGERY CO., LTD. Effective date: 20080307 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20080307 Address after: France Applicant after: Surgical review, Abt Associates Inc Address before: French bolans Applicant before: Eurosurgical |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |