CN100405986C - Rod type element, producing method thereof and fixing device with the same rod type element - Google Patents
Rod type element, producing method thereof and fixing device with the same rod type element Download PDFInfo
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- CN100405986C CN100405986C CNB2004101033812A CN200410103381A CN100405986C CN 100405986 C CN100405986 C CN 100405986C CN B2004101033812 A CNB2004101033812 A CN B2004101033812A CN 200410103381 A CN200410103381 A CN 200410103381A CN 100405986 C CN100405986 C CN 100405986C
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- 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
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- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/645—Devices extending alongside the bones to be positioned comprising a framework
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- A—HUMAN NECESSITIES
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- 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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B2017/606—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 for external osteosynthesis, e.g. distractors, contractors with resilient spring element
Abstract
A rod-shaped implant element ( 1, 100, 101, 102, 300 ) is disclosed for the connection of at least two bone anchoring elements, Each bone anchoring element has an anchoring section ( 12 ) to be anchored in the bone and a receiver member ( 13 ) to be connected to the rod-shaped implant element. The rod-shaped implant element has at least one rigid section ( 7, 8 ) that is configured to be placed in the receiver member ( 13 ). It also has a flexible section ( 9, 90, 900, 902 ) that is adjacent to the rigid section. The flexible section and the rigid section are formed in one piece. Also disclosed is a stabilization apparatus using a rod-shaped implant element and at least two of the bone anchoring elements. The stabilization apparatus can limit the movement of two vertebrae or parts of a bone in relation to each other in a defined manner.
Description
Technical field
The present invention relates to rod type element, the fixture (stabilising arrangement) that has this rod type element and the manufacture method of this rod type element that a kind of spinal surgery or the traumatology department use.
Background technology
Known a kind of fixture that is used for the thoracic vertebra of stabilize adjacent from EP 0 669 109 people, it comprises two single shaft pedicle screws (Pedikelschraube) and a belt, each personal pinching screw of belt is fixed on the female part of pedicle screw, this fixture comprises a support component that is contained on the belt, and it is designed to the form of compression body.Yet this fixture does not have torsional strength.In addition, use the single shaft pedicle screw to limit the use of this fixture.Know a kind of similar fixture from EP 1 188 416 A1, it substitutes the single shaft pedicle screw with the multiaxis pedicle screw.
From US 6,162,223 know a kind of joint for example joints of hand and kneed fixture of being used for, wherein, be provided with a hold-down bars that is connected with bone fixation element in its end double-body bike, two parts of hold-down bars interconnect by a flexible coupling unit, and hold-down bars and coupling unit are installed in external.Semi-spherical shape is made in the two-part end that faces with each other of hold-down bars, withstands on each other together, and the appearance in a joint of imitation, its freedom of motion is by the coupling unit restriction of flexibility.This known fixture is owing to the structure of its complexity and large volume is unsuitable for using at spinal column.
Recognize a kind of dynamic fixation device that is used for vertebra from US 2003/0109880, it has first and second to be fixed on the screw on the vertebra and the spring of an attachment screw, and screw respectively carries a female part, and described spring is used to pack into.Spring is made according to the form of tension spring, self is a kind of helical spring shape fully, and adjacent solenoid is very close, and with pinching screw spring is fixed on the female part.But wherein have such danger, that is, spring makes the fixedly appearance between bone screw and the spring loosening because its elasticity has been avoided the pressure of pinching screw thus.
Summary of the invention
The object of the present invention is to provide a kind of rod type element, be used to stablize vertebra connected to one another or bone and limit its activity, it is simple in structure, compact, easy operating and be suitable for multiple type of service, reliability height simultaneously.In addition, the present invention also aims to provide a kind of dynamic fixation device of compact conformation, it adopts such rod type element, and the manufacture method that a kind of this rod type element is provided.
By the present invention a kind of rod type element that is used to connect at least two bone fixation elements is proposed, described bone fixation element respectively has a canned paragraph and a female part, described canned paragraph is in bone, described female part is used for the pitman linear element, this rod type element comprises at least one rigid section, the size of rigid section is definite like this: it can be installed in the female part, and comprise a stretch section with described rigid section adjacency, wherein, rigid section and stretch section are configured to one whole, and stretch section has a core and core to have being contained in the rod type element with gap along the direction of excellent axis.
The present invention also proposes a kind of fixture of bone, comprise at least two bone fixation elements, described bone fixation element respectively has a bone canned paragraph and the female part in the bone, also comprise one to be connected with bone fixation element by rod type element of the present invention.
The present invention also proposes a kind of method that is used to make by rod type element of the present invention, has following steps: be ready to an inflexible rod; Leave excellent predetermined distance of free end, at least one length section of rod, make a helical spring section.
Advantage of the present invention is that rod type element bears axial force, flecition power and twisting action power, can adopt multiaxis or the single shaft bone screw known, and fixes reliably by them.This rod type element is particularly suitable for stablizing vertebra adjacent one another are and limits its activity under the situation of various severe intervertebral disk injury.Change in size by rod type element has realized this specific character very simply during fabrication.
Description of drawings
Further aspect of the present invention and preferred version draw from the explanation to illustrated embodiment.
Accompanying drawing is represented:
Fig. 1 is according to the perspective view of fixture in first kind of application that has rod type element of the present invention;
Fig. 2 is according to the perspective view of the rod type element of first embodiment;
Fig. 3 a is according to the side view of the rod type element of first embodiment;
Fig. 3 b is according to the profile of the rod type element of first embodiment;
The perspective view that connects between Fig. 4 a rod type element and the bone fixation element;
The cutaway view that connects between Fig. 4 b rod type element and the bone fixation element;
Fig. 5 is according to the side view of the rod type element of second embodiment;
Fig. 6 is according to the side view of the rod type element of the 3rd embodiment;
Fig. 7 is according to the side view of the 3rd embodiment Fig. 6 rod type element half-twist;
Fig. 8 is according to the perspective view of the rod type element of the 4th embodiment;
Fig. 9 is according to the side view of the rod type element of Fig. 8;
Figure 10 is according to the cutaway view of the rod type element of the 5th embodiment;
Figure 11 is according to the duty of the fixture that has rod type element under first kind of state of the 4th embodiment of the present invention;
Figure 12 is according to the side view of the rod type element of Figure 11 under first kind of state;
Figure 13 is according to the perspective view of the fixture that has rod type element under second kind of state of the 4th embodiment of the present invention;
The side view of Figure 14 Figure 13 rod type element under second kind of state;
Second kind of use-case of Figure 15 fixture;
The third use-case of Figure 16 fixture;
The 4th kind of use-case of Figure 17 fixture;
The perspective view of the 5th embodiment of Figure 18 a rod type element;
The side view of the 5th embodiment of Figure 18 b, the part that is covered dots;
The side view of the 5th embodiment half-twist of Figure 18 c Figure 18 b;
The 5th embodiment of Figure 18 d is at the sectional view of stretch section perpendicular to mandrel;
The perspective view of the 6th embodiment of Figure 19 a rod type element;
The side view of the 6th embodiment of Figure 19 b;
The 6th embodiment of Figure 19 c is along the sectional view of excellent axis;
Figure 20 a Figure 19 c lower area; With
The perspective view of the head member 134 of Figure 20 b Figure 20 a.
The specific embodiment
As the clear expression of Fig. 1, fixture has a rod type element 1 and two pedicle screws 2,3 in first kind of occupation mode, and pedicle screw is connected to each other by rod type element.Pedicle screw 2,3 is fixed on the pedicle of vertebral arch of two vertebras adjacent one another are 4,5, clips an intervertebral disc that is damaged 6 between two adjacent vertebraes.
Can know from Fig. 1, Fig. 4 a and Fig. 4 b and to see, the pedicle screw 2,3 of fixture has the brill bone thread above having a threaded rod 12-by known way, also having one is the space 15 that has a U-shaped above the columniform female part 13-basically, in order to put into rod type element.For rigid section 7,8 is fixed in the female part 13, be provided with the inner bolt 14 that can be screwed in the female part by known way.The suggestion pedicle screw is a multi-axial screws.The axial length of the rigid section 7,8 of rod type element 1 and the size of diameter are to determine that so promptly, rod type element 1 can be connected with pedicle screw 2,3 with its rigid section 7,8.Therefore the length of rigid section 7,8 at least roughly is equivalent to the diameter of the inner bolt that is provided with for the hold-down bars linear element.(wherein rod type element is not placed in one from the top for the female part 13 of pedicle screw 20, but insert from the side in the opening 21), the length of rigid section is at least the diameter that rod type element is fixed on a retaining element on the female part 13 ' equally.
In the example of fixture shown in Figure 1, the length of the stretch section 9 of rod type element 1 is chosen such that to be that it is equivalent to intervertebral disc 6 basically and is not having the distance between the pedicle screw 2,3 under the loaded-up condition.But, stretch section 9 also can lack some or longer.
In use at first pedicle screw 2,3 is screwed in the vertebra adjacent one another are, then the rigid section 7,8 of rod type element is placed on respectively in the female part 14 of pedicle screw 2,3,20.Make vertebra 4 mutually positioning, pedicle screw 2,3,20 is proofreaied and correct with respect to rod type element, then rigid section 7,8 is fixed on female part 13, on 13 '.In a kind of use, mutually positioning being done in such a way that promptly of vertebra 4,5 is not subjected to allow under the load stretch section 9 of rod type element 1 be in resting state at intervertebral disc 6.Under load, power acts on the intervertebral disc 6 by vertebra and ligament tissue.Rod type element 1 moves by the relative each other multiaxis of stretch section 9 restriction vertebras, thereby avoids excessive masterpiece to be used on the intervertebral disc.Can prevent the degenerative process slight or intervertebral disc that moderate is damaged thus.Perhaps can also move predetermined zone to vertebra by fixture, so that alleviate the burden of intervertebral disc according to the sign that spinal column has been in non-loaded-up condition.Can also directly be fixed on bone screw on the vertebral body in the side.
In second kind of embodiment shown in Figure 5, as at first kind of embodiment, rod type element 100 has 7,8 and one sections stretch sections 90 of rigid section, and stretch section is connected with the rigid section one and is between the rigid section 7,8, is a kind of helical spring form.Be that with the different of first kind of embodiment the diameter of stretch section 90 is greater than the diameter of rigid section 7,8.Thereby can obtain the higher rigidity of rigidity than the rod type element among first kind of embodiment.Working condition is identical with first kind of embodiment.
Fig. 6 and 7 expressions are according to the rod type element 101 of the third embodiment.The difference of the rod type element 1,100 of it and the foregoing description is, the stretch section 900 of design between rigid section 7,8 have two be in 180 °, to the recessed zone 901 of excellent axis direction.The length L maximum of zone 901 on excellent axis direction and the equal in length of stretch section 901, its radius of curvature is such, that is, helical spring solenoid is not interrupted.By this structure, stretch section 900 is configured to the waist form on a direction B perpendicular to excellent axis A, and rigidity has a kind of orientation thus, is applicable to specific purposes.
Its working condition is identical with the situation of first kind and second kind embodiment, and difference is that rod type element 101 can upwards directionally be fixed on the pedicle screw in week.Can accurately select and set up desirable rigidity by the size of selecting stretch section.
In the 4th kind of embodiment shown in Fig. 8 and 9, rod type element 102 has a columniform core 110, and it passes stretch section 902 with one heart, and core has certain elasticity of flexure.The diameter of core 110 is to determine like this: core 110 can be maintained in the hole after essence cooperates patchhole 10.Recommendation is used with the rod type element identical materials and is made this core, yet also can be made by flexible plastics.
The another kind of form of core 110 is to fuse with rigid section 7,8, and is connected with the stretch section 902 helical spring coils that revolve.
The effect of core 110 is to make the rod type element of 102 to the first kinds of embodiment of rod type element have higher bending stiffness.So can obtain to be similar to the rigidity of second kind of embodiment rod type element 100 in this embodiment, and the stretch section of rod type element 100 has bigger diameter.In addition, can obtain suitable bending stiffness by diameter and/or the material of selecting core.For example can use marmem with on record superelastic properties.
Its working condition is the same with embodiment recited above.Be with the difference of top embodiment, reduced compressing in the axial direction or traction stretch section 902, and reduced distortion.Particularly, it only allows the flexure motion, and this is favourable for some specific operating position.
At the 5th kind is among the embodiment shown in Figure 10, rod type element 103 has with embodiment is identical at first kind rigid section 7,8 and stretch section 9.Establish one and draw element 112 in the concentric hole 10 of recommending, a wires for example by retaining element pinching screw 13 for example, is fixed on metal wire on the rigid section 7,8.Therefore when work, can on stretch section 9, produce a pre-power.
The feature of described each embodiment can make up mutually.For example also can make the rod type element of second kind of embodiment have a core and/or a kind of one-tenth tee section that is used to obtain the rigidity of an orientation.In the variations of the third embodiment, stretch section is configured to the waist form equably or a plurality of being separated by evenly apart from the recessed areas that are shaped, so that obtain an a certain specific rigidity on the direction of regulation upwards is being set in week on a position.
In another embodiment, rod has a plurality of rigid sections, and difference is flexible section between each rigid section, and like this, many pedicle screws part by this way interconnect with stretch section with rigid section, part.
In a further embodiment, a kind of biocompatible materials coating of stretch section surface-coated or protective layer like this, do not have tissue or blood vessel or other bodily tissue can reach the function that comes to harm thus between the solenoid or influence rod type element.
In a further embodiment, replace multi-axial screws, perhaps use the combination of a multi-axial screws and a uni-axial screws, or use the combination of a plurality of these screws for fixture with uni-axial screws.Use hook to replace bone screw also to be fine.In another embodiment, rigid section and/or stretch section are crooked.
Figure 11 to 17 illustrates the preferred occupation mode of fixture that has rod type element of the present invention.In fixture, use rod type element with core 110 according to the 4th kind of embodiment according to Figure 11.For example in the time will supporting the intervertebral disc 6 of a slight or moderate lesion, in the time of should moving the masterpiece of avoiding injury and be used on the intervertebral disc by the restriction vertebra, can use this fixture.Rod type element 102 is inflexible in the axial direction, and allows compressing or stretching in the axial direction.Also can move an angle, for example ± 8 ° relative to excellent axis flexure.
Figure 15 is illustrated in a joint of two vertebras 4,5, after removing the intervertebral disc of nature, by a firm element 200 titanium cylinder for example, uses the situation of the fixture that has rod type element.It is desirable to rod and have higher rigidity, so that restriction is moved to greatest extent.There is the probability of minute movement to each other in vertebra, and this connection than perfect rigidity is favourable, can also quicken ossified by stimulation of bone growth because improve cyclic local load.
Figure 16 illustrates the use of dynamic fixation device, the flexible ends that engages as lengthwise, wherein, have a plurality of-be three- vertebra 5,5 ', 5 in an example shown " each other via 200 amalgamations of firm element, the rear portion connects by a rigid rod 300.Bear load above average level with the natural lamina 6 of the last vertebra adjacency of amalgamation chain and next vertebra, this causes intervertebral disc that high wearing and tearing take place.In order to prevent that undesirablely moving and even bear too high load from appearring in this adjacent regions, fixture is designed to mobile limiting mechanism.In this embodiment, rod 300 has a rigid section 308, and its size is so big, and it can be three pedicle screws 2,2 ', 2 to apply " couple together; adjacent with it is stretch section 309, is again a rigid section 307 that is used to connect pedicle screw 3 in terminal.
Figure 17 illustrate rod type element a kind of according to the use in the fixture of external fixator, be used for fixing for example tubular bone.Bone parts 30,31 is fixed by bone screw 32, and bone screw 32 for example is connected with a rod type element 1 according to the present invention with a rigid rod 34 by a Connection Element 33.
In the method that is used for making rod type element according to the present invention, the first step is ready to one with a kind of material that is suitable for human body suitable rigid rod of size of making of titanium for example.Then at the stretch section 9,900,902 of on a section, making the helical spring form between the two ends of rod by milling.If necessary, get out the core that runs through stretch section again, make the rod of first kind of embodiment thus.
For making the rod of the 4th kind of embodiment, or keep core 110, or insert an independent core afterwards.
For making the rod of second kind of embodiment, be ready to a rod as original material, its diameter is equivalent to the diameter of desirable rigid section 90.Then go out helical spring by Milling Process.Then desirable diameter is arrived in rigid section 7,8 turning.
For making the rod of the third embodiment,, in certain zone, remove material, to make a kind of waist portion of orientation circumferentially being misplaced mutually on 180 ° the position of stretch section.
Another embodiment is shown among Figure 18 a to 18d.In this embodiment, core 120 is to form like this, and promptly it has an orthogonal cross section (referring to Figure 18) at least on the plane perpendicular to excellent axis in the part of stretch section 9.Orthogonal cross section such as Figure 18 d are shown with a long limit 120a and a minor face 120b.Shown in Figure 18 b, core 120 preferably is in the circular cross-section that has an internal diameter with hole 10 to adapt in the zone of rigid section 7,8 when it inserts, thereby assurance is fixed rod as the foregoing description is described.Also can fix rod by a pin that puts in a transverse holes 122.
By rectangular core 120 structures in stretch section 9 zones, can on the 120a direction of orthogonal long limit, produce a big bending stiffness, and on orthogonal minor face 120b direction, produce a less bending stiffness.For certain specific use, can improve active probability in one direction according to the orientation that is provided with of core 1 20, on perpendicular to this direction, limit its active probability more.With do not have core or in the hole design metal wire embodiment relatively, make and draw intensity and pressure degree to be improved.Torsional rigidity also can be adjusted by selecting suitable core in addition.
In order to obtain described effect, the cross section that needn't rigidly require core is a square-section, on the contrary, other section form also is fine, for example a kind of elliptic cross-section according to needed performance, also can be selected a kind of rectangular basically cross section, side is recessed partly or protruding, perhaps even can also select a kind of cross section roughly triangular in shape.Vital point is, the cross section is in (or at least on two different directions) on two axis that are perpendicular to one another, will be of different sizes on perpendicular to the plane of excellent axis.Like this, bending stiffness just depends on direction.
In this embodiment, core 120 can with other embodiment like that (according to geometry), perhaps be integral with bar construction, perhaps make the back separately and insert in the rod.Also can combine this core 120 with other embodiment, so that the performance of rod type element adapts to corresponding requirement.
A kind of method of special fixed core is provided in the embodiment shown in Figure 19 a to 19c.Shown in Figure 19 c, in rigid section 7,8, on the free-ended direction of rod type element, connecting one and this hole 10 concentric second hole 10a, 10b on the hole 10 respectively.In an illustrated embodiment, rigid section 7,8 is in two side symmetric arrangement of stretch section 9, so followingly only section 8 is described according to Figure 20 a.
In the second hole 10b, 10 are provided with a head female part 131 in connection with the hole, and the head female part has an external diameter on the direction perpendicular to the second hole 10b axis, and this external diameter is equivalent to the internal diameter of the second hole 10b basically.The head female part is made up of two dish shell 131a, 131b, and they are disposed on 10 axis directions of hole, cross a cavity 133 each other, and the shape of cavity is a sphere that 10 axis directions stretch along the hole basically.Front at dish shell 131a, 131b is provided with and concentric hole 132a of the second hole 10b and 132b, and their diameter becomes big from cavity 133 gradually to place, front separately, and is slightly larger than the diameter of core 130.
The external diameter of core 130 is significantly less than the internal diameter in hole 10.Core 130 has external screw thread 137, female thread 138 combineds effect in the hole of this external screw thread and a head member 134 in the face of the end of rigid section 8.Head member 134 is shown in Figure 20 b.It is hemispheric halfbody 134a basically by two and 134b forms, and the outside roughly spherical in shape that halfbody combines has such diameter: it is greater than the minimum diameter of hole 132b, and less than the minimum diameter of cavity 133.Core 130 is provided with externally threaded free end and passes hole 132b, is screwed among the head member 134 halfbody 134a and 134b that are contained in the cavity 133, and they are as nut and locking nut combined effect.
Another free end of core 130 is assembled in the rigid section 7 in the same way.How much free-ended be screwed to two of core 130 according to head member 134, head member 134 is close on the inboard of head female part 131-the head female part facing to hole 10, be close in the face of the second hole 10a, the free-ended inboard of 10b or with this inboard and leave certain interval.
In this embodiment, by the spherical structure of head member 134 with also be the combined effect of the head female part 131 of spheroid form basically, head member 134 can slide in head female part 131.So in the time spent of doing that is subjected to the outer bend load, a little deflection just avoids making core 130 to be subjected to bending load.By tappet head parts 134, make on the inboard of its core that is close to head female part 131 one side, or be close on the inboard that deviates from core of head female part 131, then can strengthen the hot strength or the comprcssive strength of rod type element.By setting up the gap of head member 134 both sides in female part 131, can be so that core just begins to work when one specific elongating or shortening arranged in the perimeter of rod type element.
Figure 19 to 20a exemplarily represents with screw element (screw) 135 female part 131 to be fixed on example among the second hole 10a, the 10b; But,, the side screw that resembles other embodiment can be set equally also, perhaps between the head female part and second hole, take pressure to connect in order to fix.
In addition, the part of these embodiment can also be combined with other form of implementation.
Claims (16)
1. be used for connecting the rod type element of at least two bone fixation elements (2,3,20), described bone fixation element respectively has a canned paragraph (12) and a female part (13), and described canned paragraph is in bone, and described female part is used for pitman linear element (1,100,101,102,103,300), this rod type element comprises at least one rigid section (7,8,307,308), the size of rigid section is definite like this: it can be installed in the female part (13), and comprises a stretch section (9,90 with described rigid section adjacency, 900,902,309), wherein, rigid section and stretch section are configured to one whole, stretch section (902) has a core (110,112,120) and core (120) to have being contained in the rod type element with gap along the direction of excellent axis.
2. according to the rod type element of claim 1, it is characterized in that stretch section (9,90,900,902,309) is configured to helical spring.
3. according to the rod type element of claim 1 or 2, wherein, stretch section (9,90,900,902,309) is to be made of a kind of scroll opening shape gap in the outer surface of rod type element, and extend in the described scroll opening shape gap radially direction of lobe central axis.
4. according to the rod type element of claim 1, it is characterized in that, in connection with stretch section (9,90,900,902,309) with the opposed end of rigid section (7,307), be provided with one second rigid section (8,308).
5. according to the rod type element of claim 1, it is characterized in that, the external diameter of stretch section (90) at least on position, a place with the external diameter difference of rigid section (7,8,307,308).
6. according to the rod type element of claim 1, it is characterized in that stretch section (900,901) has on perpendicular to one of excellent axis definite direction at least partly than big or little external diameter on perpendicular to one of excellent axis other direction.
7. according to the rod type element of claim 1, it is characterized in that the external diameter of stretch section (900,901) changes on the whole length of stretch section.
8. according to the rod type element of claim 1, it is characterized in that, be provided with one and connect that rod type element extends, co-axial hole (10).
9. according to the rod type element of claim 1, it is characterized in that core (120) has anisotropic cross section at least in the part of stretch section.
10. the fixture of bone, comprise at least two bone fixation elements (2,3), described bone fixation element respectively has a bone canned paragraph (12) and a female part (13) in the bone, also comprise one that will be connected with bone fixation element, according to one rod type element (1,100 in the claim 1 to 9,101,102,103,300).
11. the fixture according to the bone of claim 10 is characterized in that bone fixation element (2,3,20) is a kind of single shaft or multiaxis bone screw.
12. be used to make method, have following steps according to one rod type element of claim 1 to 9:
Be ready to an inflexible rod;
Leave excellent predetermined distance of free end, at least one length section of rod, make a helical spring section.
13. the method according to claim 12 is characterized in that, a core that in axial direction extends is come outbreak out or keeps this core.
14. the method according to claim 12 is characterized in that, along stretch section vertically remove certain material area so that at least one zone of stretch section a kind of non-circular cross section of formation.
15. the method according to claim 12 is characterized in that, the diameter of rigid section is compared reduced with the diameter of stretch section or is amplified.
16. the method according to claim 12 is characterized in that, described helical spring section adopts the method for machining to make.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51211303P | 2003-10-17 | 2003-10-17 | |
| DE10348329.2 | 2003-10-17 | ||
| US60/512,113 | 2003-10-17 | ||
| DE10348329A DE10348329B3 (en) | 2003-10-17 | 2003-10-17 | Rod-shaped element used in spinal column and accident surgery for connecting two bone-anchoring elements comprises a rigid section and an elastic section that are made in one piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1672650A CN1672650A (en) | 2005-09-28 |
| CN100405986C true CN100405986C (en) | 2008-07-30 |
Family
ID=35045598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101033812A Expired - Fee Related CN100405986C (en) | 2003-10-17 | 2004-10-15 | Rod type element, producing method thereof and fixing device with the same rod type element |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2009285492A (en) |
| KR (1) | KR100764191B1 (en) |
| CN (1) | CN100405986C (en) |
| DE (2) | DE502004004126D1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199644A (en) * | 2018-10-30 | 2019-01-15 | 西安交通大学 | A kind of costal cartilage prothesis implant body of Bionic Design and preparation method thereof |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100790518B1 (en) * | 2006-04-17 | 2008-01-02 | 김수경 | Spinal stabilization apparatus |
| KR100817788B1 (en) * | 2006-09-07 | 2008-03-31 | 박경우 | A flexible rod manufacturing apparatus and method for a spinal fixation and the flexible rod manufactured through the same |
| KR100829338B1 (en) * | 2006-12-07 | 2008-05-13 | 김수경 | Spinal stabilization apparatus |
| KR100837108B1 (en) * | 2008-01-11 | 2008-06-11 | 최길운 | Flexible rod for fixation of the vertebrae |
| KR101879225B1 (en) | 2010-07-15 | 2018-07-17 | 세키스이 메디칼 가부시키가이샤 | Method for detecting malignant tumor cells |
| CN102106750B (en) * | 2011-02-17 | 2013-04-03 | 上海微创骨科医疗科技有限公司 | Spinal column dynamic connection rod |
| CN103536345B (en) * | 2012-07-17 | 2016-03-23 | 上海微创骨科医疗科技有限公司 | A kind of spinal column dynamic stability implants unit |
| EP2832309B1 (en) * | 2013-07-31 | 2018-03-07 | Biedermann Technologies GmbH & Co. KG | Implant for bones or vertebrae with self-constrained flexibility |
| CN207429150U (en) * | 2016-08-05 | 2018-06-01 | 曾逸豪 | A kind of nail |
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| FR2702361A1 (en) * | 1993-02-24 | 1994-09-16 | Soprane Sa | Fixator for lumbosacral osteosyntheses |
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| WO1996015729A1 (en) * | 1994-11-18 | 1996-05-30 | Euros S.A. | Posterior spinal stabilisation device using a rod |
| US5593408A (en) * | 1994-11-30 | 1997-01-14 | Sofamor S.N.C | Vertebral instrumentation rod |
| CN2529612Y (en) * | 2002-02-25 | 2003-01-08 | 谭明生 | Elastic artificial joint system of spinal column |
| WO2003047442A1 (en) * | 2001-12-07 | 2003-06-12 | Mathys Medizinaltechnik Ag | Damping element and device for stabilisation of adjacent vertebral bodies |
| US20030171749A1 (en) * | 2000-07-25 | 2003-09-11 | Regis Le Couedic | Semirigid linking piece for stabilizing the spine |
| US20030191470A1 (en) * | 2002-04-05 | 2003-10-09 | Stephen Ritland | Dynamic fixation device and method of use |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4755781B2 (en) * | 2001-08-01 | 2011-08-24 | 昭和医科工業株式会社 | Jointing member for osteosynthesis |
-
2004
- 2004-10-14 DE DE502004004126T patent/DE502004004126D1/en active Active
- 2004-10-14 DE DE502004011192T patent/DE502004011192D1/en active Active
- 2004-10-15 CN CNB2004101033812A patent/CN100405986C/en not_active Expired - Fee Related
- 2004-10-18 KR KR1020040083035A patent/KR100764191B1/en not_active IP Right Cessation
-
2009
- 2009-09-09 JP JP2009208425A patent/JP2009285492A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2702361A1 (en) * | 1993-02-24 | 1994-09-16 | Soprane Sa | Fixator for lumbosacral osteosyntheses |
| FR2717370A1 (en) * | 1994-03-18 | 1995-09-22 | Moreau Patrice | Intervertebral stabilising prosthesis for spinal reinforcement inserted during spinal surgery |
| WO1996015729A1 (en) * | 1994-11-18 | 1996-05-30 | Euros S.A. | Posterior spinal stabilisation device using a rod |
| US5593408A (en) * | 1994-11-30 | 1997-01-14 | Sofamor S.N.C | Vertebral instrumentation rod |
| US20030171749A1 (en) * | 2000-07-25 | 2003-09-11 | Regis Le Couedic | Semirigid linking piece for stabilizing the spine |
| WO2003047442A1 (en) * | 2001-12-07 | 2003-06-12 | Mathys Medizinaltechnik Ag | Damping element and device for stabilisation of adjacent vertebral bodies |
| CN2529612Y (en) * | 2002-02-25 | 2003-01-08 | 谭明生 | Elastic artificial joint system of spinal column |
| US20030191470A1 (en) * | 2002-04-05 | 2003-10-09 | Stephen Ritland | Dynamic fixation device and method of use |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199644A (en) * | 2018-10-30 | 2019-01-15 | 西安交通大学 | A kind of costal cartilage prothesis implant body of Bionic Design and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050037395A (en) | 2005-04-21 |
| DE502004004126D1 (en) | 2007-08-02 |
| JP2009285492A (en) | 2009-12-10 |
| KR100764191B1 (en) | 2007-10-08 |
| CN1672650A (en) | 2005-09-28 |
| DE502004011192D1 (en) | 2010-07-01 |
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Owner name: BIEDERMANN TECHNOLOGIES GMBH + AMP CO. KG Free format text: FORMER NAME: BIEDERMANN MOTECH GMBH |
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