CN100496426C - Memory alloy spinal column orthopaedics inner fixing system - Google Patents
Memory alloy spinal column orthopaedics inner fixing system Download PDFInfo
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- CN100496426C CN100496426C CNB200710024033XA CN200710024033A CN100496426C CN 100496426 C CN100496426 C CN 100496426C CN B200710024033X A CNB200710024033X A CN B200710024033XA CN 200710024033 A CN200710024033 A CN 200710024033A CN 100496426 C CN100496426 C CN 100496426C
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Abstract
The present invention discloses a memory alloy spinal column orthopedic internal fixation system for making surgical operation in the field of medical instrument technology. Said system includes two orthopedic rods made of nickel-titanium shape memory alloy material, between said two orthopedic rods a transverse connector made of nickel-titanium shape memory alloy material is cross-connected, the lower end of every orthopedic rod is connected with a base hook made of nickel-titanium shape memory alloy material, and the upper end of every orthopedic rod is connected with several saddle hooks made of nickel-titanium shape memory alloy material.
Description
Technical field
The invention belongs to the surgical operation therapy technical field of medical instruments, relate in particular to a kind of memory alloy spinal columnar orthopedic inner fixing system.
Background technology
Scoliotic operative treatment developed into this sixties in 20th century, and orthopedic theory and orthopedic effect all obtain qualitative leap.Especially along with spinal biomechanics research deeply and the promoting the use of of three-dimensional orthopedic notion, impel supporting with it device design, manufacturing and Surface-micromachining process to be gradually improved, for the patient of deformity of spine has brought happiness.But, because this type of apparatus is by external exploitation and manufacturing mostly, cause surgery cost high, simultaneously, China starts late spine corrective operation, numerous doctors grasp not enough to the three-dimensional orthopedic theory and the principle of backbone correcting, can only launch at the discrete large hospital of minority at present, how to develop the internal fixation device that is fit to the Chinese visible human biomechanics, can simplify loaded down with trivial details operation technique again, being easy to the apparatus that the doctor grasps and but large-scale popularization is used, is the problem that current Osteological field is extremely paid close attention to.
Mostly the backbone correcting internal fixation system of prior art is by rustless steel, Gu Chrome alloy, titanium alloy etc materials is made and process, from structure, connection and fixed form, all be to be the center, rely on different vertebral body anchors and connected mode and develop out various systems with orthopedic rod (Harington rod).As CD, ISOLA, TSRH, USS, Moss, Miami, Paragon, Chinese Great Wall, AF etc., the common trait of this type systematic is: fixing strong reliable, the surgical wound surface scope is big, and operating time is long, intensity is high.Abnormity orthopedics in art by loosen, anchor is corrected, in fusion, external force, put rod, a series of processes such as fastening are finished.The once static pressure that belongs under the surgical operation is fixing, to obtain to rescue the purpose of lopsided spinal column physiological curve.The major defect of this system is: the mistake under 1, static pressure is fixed is compensatory, and the secondary of generation is deformity again; 2, degree of rescuing is subjected to the influence of lopsided physiological environment, can not rescue once that put in place must be through secondary or repeatedly progressively finish; 3, the implantation of mooring anchor (pedicle screw, various coupler body) needs vertebral body and hone lamella are punched and cut and can locate, and has increased the secondary damage of bone; 4, each member is subjected to the influence of function, and face shaping, size can not further be dwindled again, makes postoperative patient spinal column back skin bear the torment of the outstanding salient point of apparatus, has influence on normal sleep and physical efficiency recovery, and severe patient can cause superinfection.
Summary of the invention
Technical problem to be solved by this invention provides a kind of memory alloy spinal columnar orthopedic inner fixing system, and this fixed system is can be in conjunction with loosening normally in the operation and merging the three-dimensional fixation system that the once orthopedic and postoperative lasting gradual change under the static state is rescued that finishes.
The present invention includes two orthopedic rods of being made by nickel-titanium shape memory alloy material, the every orthopedic excellent integral body of being made by nickel-titanium shape memory alloy material is bending; At least two lateral connectors of making by nickel-titanium shape memory alloy material, each lateral connector of being made by nickel-titanium shape memory alloy material comprises connection handle, the two ends of connection handle are provided with the connection pawl that is " C " shape respectively; A plurality of saddle hooks of making by nickel-titanium shape memory alloy material, each saddle hook of being made by nickel-titanium shape memory alloy material comprises a linking arm, the two ends of the whole curved and linking arm of the described linking arm formation coupler body that bends inwards respectively, connection one is the arm of encircling of " C " shape on the described linking arm, the arm of encircling of described linking arm is made of two arc side arms, wherein the end of an arc side arm is connected a side of linking arm, the end of another arc side arm is connected the opposite side of linking arm, and two arc side arm front ends form a breach relatively; Two base hooks of making by nickel-titanium shape memory alloy material, each base hook of being made by nickel-titanium shape memory alloy material is by encircling arm and coupler body constitutes, the shape of encircling arm of encircling arm and above-mentioned linking arm of base hook and structure is roughly the same and the overall structure be made up of two arc side arms, the end of the coupler body of base hook is connected the centre position that encircles the arm bottom surface of base hook; The bottom of the above-mentioned every orthopedic rod of being made by nickel-titanium shape memory alloy material is connected with a base hook of being made by nickel-titanium shape memory alloy material, the bottom that encircles the orthopedic rod that the arm clamping made by nickel-titanium shape memory alloy material of the base hook of being made by nickel-titanium shape memory alloy material; And, also be connected with a plurality of saddle hooks of making by nickel-titanium shape memory alloy material on the orthopedic rod that every is made by nickel-titanium shape memory alloy material, the saddle hook that each is made by nickel-titanium shape memory alloy material encircle the orthopedic rod that the arm clamping is made by nickel-titanium shape memory alloy material; Each lateral connector of being made by nickel-titanium shape memory alloy material is connected across between two orthopedic rods of being made by nickel-titanium shape memory alloy material, and the connection pawl that is arranged on the lateral connector two ends of being made by nickel-titanium shape memory alloy material is each orthopedic rod of being made by nickel-titanium shape memory alloy material of clamping respectively.
Compare with the backbone correcting internal fixation system of prior art, owing to be connected the form that all adopts dogging between each parts in this memory alloy spinal columnar orthopedic inner fixing system, between parts and the spinal vertebral, avoid on bone punching and cutter to cut, implant in vivo pedicle of vertebral arch bolt and other location and adjusted operation, and saved follow-up various fastening operation, thereby reduced difficulty, the intensity of operation, shortened operating time.Furthermore, because native system adopts and to encircle fixingly, no loaded down with trivial details fastening operation is not so need to dispose a lot of instruments.Each parts in this memory alloy spinal columnar orthopedic inner fixing system all adopt nickel-titanium shape memory alloy material to make, because marmem has the function of perception, driving, execution, overcome the restriction of working place, so the face shaping of each parts of system can be smaller and more exquisite.Simultaneously, because marmem has the function that continues acting under constraint, orthopedic after surgery rod in lopsided spinal column, plays the effect lasting, that gradual change is rescued with persistent pressure.
As improvement of the present invention, one flat surface grinding is set along the every surperficial longitudinal direction of making by nickel-titanium shape memory alloy material of orthopedic rod.
The flat surface grinding can make things convenient for above-mentioned orthopedic rod in use to locate and prevent that barred body from rotating.
As improvement of the present invention, can the pyramid reticulate pattern be set at the outer surface of every orthopedic excellent bottom of making by nickel-titanium shape memory alloy material, at the inner surface of encircling arm of each base hook of making by nickel-titanium shape memory alloy material the pyramid reticulate pattern is set.
The described pyramid reticulate pattern of encircling the arm inner surface can cooperatively interact with the pyramid reticulate pattern of orthopedic excellent lower external face, thereby can strengthen base hook and orthopedic excellent connection stability and anti-turning effort.
As improvement of the present invention, can the laser marker line be set along the every surperficial longitudinal direction of making by nickel-titanium shape memory alloy material of orthopedic rod.
The laser marker line can make things convenient for the doctor to observe and operate orthopedic rod in operation process.
As improvement of the present invention, the connection pawl that is arranged on the lateral connector two ends of being made by nickel-titanium shape memory alloy material comprises interior grasping face, end face, bottom surface and outer surface, is furnished with at least two protruding fulcrums respectively in each end face and bottom surface that connects pawl.
The protruding fulcrum that is provided with can be convenient to the doctor and use instrument such as V shape crowbar that member is strutted distortion, so as to adjust orthopedic system or in the body secondary take out.
As improvement of the present invention, be arranged on the two sides of each coupler body at the saddle hook two ends of making by nickel-titanium shape memory alloy material, arrange at least two protruding fulcrums respectively; Be respectively provided to few two protruding fulcrums on the end face of each the arc side arm that is connected with the linking arm of saddle hook and the bottom surface.
In the same manner, protruding fulcrum can be convenient to the doctor and use instrument such as V shape crowbar that member is strutted distortion, so as to adjust orthopedic system or in the body secondary take out.
As improvement of the present invention, the end face of encircling arm of the base hook of being made by nickel-titanium shape memory alloy material is provided with at least two pairs of protruding fulcrums; On the two sides of the coupler body of the base hook of making by nickel-titanium shape memory alloy material a protruding fulcrum is set respectively.
Identical with the effect of the above protruding fulcrum, the protruding fulcrum that is provided with on the base hook can be convenient to the doctor and use instrument such as V shape crowbar that member is strutted distortion, so as to adjust orthopedic system or in the body secondary take out.
As improvement of the present invention, be arranged on the end difference butt hook head of the saddle hook two ends coupler body of making by nickel-titanium shape memory alloy material, the front portion of gib head is provided with in two the pointed tooth of receiving, and the linkage section between the pointed tooth root of receiving in described two is processed into circular arc.
The gib head of receiving pointed tooth in the band that connects on the saddle hook both can have been avoided injuring in the canalis spinalis neural, again interlock canalis spinalis wall or its surface of bone securely.
As improvement of the present invention, the front end of the coupler body of the base hook of being made by nickel-titanium shape memory alloy material connects gib head, and the front portion of this gib head is provided with the pointed tooth of receiving in two, and the linkage section between the pointed tooth root of receiving in described two is processed into circular arc.
The gib head of receiving pointed tooth in the band that connects on the saddle hook both can have been avoided injuring in the canalis spinalis neural, again interlock canalis spinalis wall or its surface of bone securely.
As a further improvement on the present invention, connect a zygodont respectively on the coupler body two sides of base hook, a zygodont that connects respectively on the described coupler body two sides is relative with the pointed tooth of receipts in anterior two of being provided with of the gib head of base hook, forms upper and lower forceps type structure.
Upper and lower forceps type structure is engaged on the inside and outside surface of bone of transverse process plate, prevents that parts from sliding and displacement.
Description of drawings
Fig. 1 is an overall assembling sketch map of the present invention.
Fig. 2 is the structural representation of the orthopedic rod made by nickel-titanium shape memory alloy material.
Fig. 3 is the orthopedic rod made by nickel-titanium shape memory alloy material shown in Fig. 2 cutaway view along the A-A line.
Fig. 4 is the structural representation of the lateral connector made by nickel-titanium shape memory alloy material.
Fig. 5 is the perspective view of the lateral connector made by nickel-titanium shape memory alloy material.
Fig. 6 is the structural representation of the saddle hook made by nickel-titanium shape memory alloy material.
Fig. 7 is the saddle hook made by nickel-titanium shape memory alloy material shown in Fig. 6 cutaway view along the B-B line.
Fig. 8 is the perspective view of the saddle hook made by nickel-titanium shape memory alloy material.
Fig. 9 is the perspective view of the other direction of the saddle hook made by nickel-titanium shape memory alloy material.
Figure 10 is the structural representation of the base hook made by nickel-titanium shape memory alloy material.
Figure 11 is the base hook made by nickel-titanium shape memory alloy material shown in Figure 10 cutaway view along the C-C line.
Figure 12 is the vertical view of the base hook made by nickel-titanium shape memory alloy material.
Figure 13 is the perspective view of the base hook made by nickel-titanium shape memory alloy material.
The specific embodiment
As shown in Figure 1, in the present embodiment, memory alloy spinal columnar orthopedic inner fixing system comprise two by nickel-titanium shape memory alloy material make orthopedic excellent 1, two lateral connectors of making by nickel-titanium shape memory alloy material 2, eight saddle hooks of making by nickel-titanium shape memory alloy material 3, and two base hooks of making by nickel-titanium shape memory alloy material 4, every by nickel-titanium shape memory alloy material make orthopedic excellent 1 on be connected with four saddle hooks of making by nickel-titanium shape memory alloy material 3, and every lower end of orthopedic excellent 1 of being made by nickel-titanium shape memory alloy material connects a base hook 4 of being made by nickel-titanium shape memory alloy material; Above-mentioned two lateral connectors of making by nickel-titanium shape memory alloy material 2 be connected across respectively two by nickel-titanium shape memory alloy material make orthopedic excellent 1 between, and the two ends of the lateral connector 2 that each is made by nickel-titanium shape memory alloy material respectively with orthopedic excellent 1 interconnecting of making by nickel-titanium shape memory alloy material, thereby can stablize and coordinate two orthopedic excellently 1, make whole fixed system stress equalization.Certainly, according to the length of orthopedic vertebral body, the quantity that the native system saddle colludes should increase and decrease.
As shown in Figure 2, mate mutually by orthopedic excellent 1 integrally bending and human spine's shape that nickel-titanium shape memory alloy material is made, and be set a week on the outer surface of above-mentioned orthopedic excellent 1 bottom of making by nickel-titanium shape memory alloy material around orthopedic excellent 1 pyramid reticulate pattern 1-1.As shown in Figure 3, a side of orthopedic excellent 1 of being made by nickel-titanium shape memory alloy material vertically is provided with a flat surface grinding 1-2 along it; Simultaneously, in operation process, observe, operate for the ease of the doctor, can be with above-mentioned flat surface grinding 1-2 opposite side, one laser marker line vertically be set along orthopedic excellent 1 outer surface.
The lateral connector of being made by nickel-titanium shape memory alloy material 2 that shows among Fig. 4 is to be used for above-mentioned two orthopedic excellent 1 interconnective connectors of being made by nickel-titanium shape memory alloy material.The lateral connector of being made by nickel-titanium shape memory alloy material 2 is dumbbell shaped, its by connection handle 2-1 be separately positioned on described connection handle 2-1 two ends be connected pawl 2-2 and 2-3 constitutes, the shape of described connection pawl 2-2 and 2-3 is identical with structure, they all be " C " shape with make things convenient for grasping by nickel-titanium shape memory alloy material make orthopedic excellent 1.As shown in Figure 5, connect pawl 2-2 and comprise interior grasping face, end face, bottom surface and outer surface; Be furnished with two protruding fulcrum 2-2-1 at the end face that connects pawl 2-2, the maximum deflection radian place that certain at interval distance and they are in end face between above-mentioned two protruding fulcrum 2-2-1; Also arrange two protruding fulcrum 2-2-1 respectively in the bottom surface that connects pawl 2-2 and with the correspondence position of above-mentioned two protruding fulcrum 2-2-1.In the same manner, be furnished with two protruding fulcrum 2-3-1 respectively on the end face of connection pawl 2-3 and the bottom surface.
The saddle hook of being made by nickel-titanium shape memory alloy material 3 as shown in Figure 6 comprises a linking arm 3-1, the two ends of the whole curved and linking arm 3-1 of described linking arm 3-1 bend inwards respectively and form coupler body 3-1-1 and 3-1-2, the end of above-mentioned two coupler body 3-1-1 and 3-1-2 is butt hook head 3-1-3 and 3-1-4 respectively, anterior interior receipts of gib head 3-1-3 and 3-1-4.The front portion of the gib head 3-1-4 that shows among Fig. 7 is provided with two pointed tooths, and the linkage section between described two pointed tooth roots is processed into circular arc.Another gib head 3-1-3 is identical with shape and the structure of gib head 3-1-4.Among Fig. 6, be connected with one in the centre position of linking arm 3-1 and encircle arm 3-2.As shown in Figure 8, encircling arm 3-2 is made of two arc side arm 3-2-1 and 3-2-2.The end of arc side arm 3-2-1 is connected the side of linking arm 3-1, the end of arc side arm 3-2-2 is connected the opposite side of linking arm 3-1, and relative formation one breach of front end of two arc side arm 3-2-1 and 3-2-2, constitute thus be " C " shape encircle arm 3-2.As Fig. 6 and shown in Figure 9, taking-up operation in the operation process for convenience, in the present embodiment, two protruding fulcrum 3-1-5 are set on the side of coupler body 3-1-1, correspondingly, two protruding fulcrum 3-1-5 also are set on the another side of coupler body 3-1-1, and described two protruding fulcrum 3-1-5 and other two protruding fulcrum 3-1-5 are symmetrical.According to identical arrangement, two protruding fulcrum 3-1-6 are set respectively on the two sides of coupler body 3-1-2; Two protruding fulcrum 3-1-7 are set respectively on the end face of arc side arm 3-2-1 and the bottom surface; Two protruding fulcrum 3-1-8 are set respectively on the end face of arc side arm 3-2-2 and the bottom surface.The installation quantity and the specification of the described saddle hook of being made by nickel-titanium shape memory alloy material 3 can be with rescuing the zone, rescuing the different and difference to some extent in position.And saddle hook 3 can be grasped in the transverse process of thoracic vertebra cervical region, also can be grasped in canalis spinalis wall and vertebral plate lower edge.The saddle hook encircle arm with the fixed position difference, be divided into respect to the transportable rotating ring of grasping bone portion with respect to actionless stationary ring two classes of grasping bone portion, rotating ring is convenient to postoperative and is continued orthopedic elimination secondary deformity.
As Figure 10, Figure 12 and shown in Figure 13, the base hook of being made by nickel-titanium shape memory alloy material 4 is by encircling arm 4-1 and coupler body 4-2 constitutes.Describedly encircle arm 4-1 and above-mentioned shape and structure of encircling arm 3-2 is roughly the same.Encircle the overall structure that arm 4-1 is made up of two arc side arms.The end of coupler body 4-2 is connected the centre position that encircles arm 4-1 bottom surface; The front end of coupler body 4-2 connects gib head 4-2-1.As shown in figure 11, the structure of gib head 3-1-3 in this gib head 4-2-1 and the above-mentioned saddle hook 3 and 3-1-4 is identical.The front portion of gib head 4-2-1 is provided with two pointed tooths, and the linkage section between described two pointed tooth roots is processed into circular arc.For the ease of operating in the operation process, the end face of encircling arm 4-1 is provided with two couples of protruding fulcrum 4-1-1, and a protruding fulcrum 4-2-2 is set respectively on the two sides of coupler body 4-2.Simultaneously, connect a zygodont 4-2-3 respectively on the two sides of a part of afterbody coupler body 4-2, this pointed tooth 4-2-3 is relative with anterior two pointed tooths that are provided with of gib head 4-2-1, forms upper and lower forceps type structure.Furthermore, the inner surface of encircling arm 4-1 can be processed with the pyramid reticulate pattern, can cooperatively interact with the pyramid reticulate pattern 1-1 that is arranged on orthopedic excellent 1 lower external face in orthopedic excellent 1 o'clock so that encircle arm 4-1 clamping, strengthens connective stability and anti-rotatory.The above-mentioned base hook of being made by nickel-titanium shape memory alloy material 4 can be divided into lumbar segment base hook and thoracic vertebra section base hook two big classes, difference be the gradient of gib head 4-2-1 with the variation of vertebral plate shape difference.
Operation use explanation:
1, the doctor determines operation plan and operative approach according to patient's state of an illness situation and X-ray sheet;
2,, select to be fit to the apparatus (specification, accessory) and the kit of operative approach according to operation plan;
3, before the art this cover apparatus and kit are carried out high-temperature sterilization;
4, in art, this cover apparatus is put into the container (dish) of brine ice, and put neat, with strut pincers successively with each hook, encircle arm and strut to snapping in the thick and excellent footpath of hone lamella arm and get final product;
5, press operative approach, loosen normally, merge, external force is corrected and is resetted, and examines the movable degree of lopsided each vertebral body of spinal column;
6, with the arm of encircling of holding first base hook of wrench clamping, coupler body is hung over the transverse process plate medial surface of lumbar vertebra (or thoracic vertebra), the coupler body bottom contacts with outer rim, the central axis of retaining ring arm opening and the axis direction of vertebral body are consistent, then to the coupler body hot compress, make coupler body produce recovery of shape, block the transverse process vertebral plate;
7, with the arm of encircling of holding wrench clamping saddle hook, make it parallel with the vertebral body axis, and and the base of first installation be hooked on the same dissection surface, behind good position, the top coupler body of saddle hook is inserted in the canalis spinalis along the canalis spinalis wall, the bottom coupler body is hooked on the outer rim of transverse process plate, then to two coupler body hot compresses, make hook produce recovery of shape, be the pincers type and be fixed on the vertebral plate;
8, according to the method for above placement saddle hook, follow-up saddle hook is installed successively;
9, hold orthopedic rod with the excellent clamp of folder and leave brine ice, the rod end, be inserted into encircling in the arm hole of base hook, with another folder rod pincers orthopedic rod is out of shape then, make it to snap in successively in the arm hole of each saddle hook smoothly, adjust slightly, to respectively encircling the arm hot compress, make it to clasp securely orthopedic rod;
10, lay second orthopedic rod by above 6,7,8,9 operating procedure;
11, check fixed accuracy, active degree of freedom carries out inching to incorrect position by after the cold compress cooling, integral body is carried out hot compress then, observes orthopedic recovery extent, simultaneously, by certain maneuver human body is carried out suitable tractive, to reach best rescuing;
12, connect two orthopedic rods with lateral connector, and hot compress, check the reliability of overall fixed at last;
13, sew up each tissue and wound surface routinely successively.
The nursing of postoperative and functional rehabilitation:
Because manufactured materials, the fixed form of native system are different from other internal fixation system, it nurses the phase after surgery and functional rehabilitation rises, and still spinal column is carried out the application of force, play continue to rescue, effect that gradual change is moulding, belong to the Dynamizable orthopedic category.Based on this reason, aspect the nursing in patient's later stage except that the functional rehabilitation and activity of lying up and progressively increasing in needs early stages, also need carry out suitable back diathermy or heating, obtain maximum orthopedic force, make the orthopedic optimum efficiency that reaches to help native system.
Claims (10)
1, memory alloy spinal columnar orthopedic inner fixing system is characterized in that comprising:
Two orthopedic rods of making by nickel-titanium shape memory alloy material (1), every orthopedic rod (1) integral body of being made by nickel-titanium shape memory alloy material is bending;
At least two lateral connectors of making by nickel-titanium shape memory alloy material (2), each lateral connector of being made by nickel-titanium shape memory alloy material (2) comprises connection handle (2-1), the two ends of connection handle (2-1) be provided with respectively the connection pawl that is " C " shape (2-2,2-3);
A plurality of saddle hooks of making by nickel-titanium shape memory alloy material (3), each saddle hook (3) of being made by nickel-titanium shape memory alloy material comprises a linking arm (3-1), whole curved and two ends linking arm (3-1) of described linking arm (3-1) bend inwards respectively and form coupler body (3-1-1,3-1-2), described linking arm (3-1) go up to connect one be " C " shape encircle arm (3-2), described linking arm (3-1) encircle arm (3-2) by two arc side arm (3-2-1,3-2-2) constitute, wherein the end of an arc side arm (3-2-1) is connected a side of linking arm (3-1), the end of another arc side arm (3-2-2) is connected the opposite side of linking arm (3-1), and two arc side arms (3-2-1,3-2-2) front end forms a breach relatively;
Two base hooks of making by nickel-titanium shape memory alloy material (4), each base hook (4) of being made by nickel-titanium shape memory alloy material constitutes by encircling arm (4-1) and coupler body (4-2), base hook (4) encircle the overall structure that arm (4-1) also is made up of two arc side arms, the end of the coupler body (4-2) of base hook (4) is connected the centre position that encircles arm (4-1) bottom surface of base hook (4);
The bottom of the above-mentioned every orthopedic rod of being made by nickel-titanium shape memory alloy material (1) is connected with a base hook (4) of being made by nickel-titanium shape memory alloy material, the bottom that encircles the orthopedic rod (1) that arm (4-1) clamping made by nickel-titanium shape memory alloy material of the base hook of being made by nickel-titanium shape memory alloy material (4); And, also be connected with a plurality of saddle hooks of making by nickel-titanium shape memory alloy material (3) on the orthopedic rod (1) that every is made by nickel-titanium shape memory alloy material, the saddle hook (3) that each is made by nickel-titanium shape memory alloy material encircle the orthopedic rod (1) that arm (3-2) clamping is made by nickel-titanium shape memory alloy material; Each lateral connector of being made by nickel-titanium shape memory alloy material (2) is connected across between two orthopedic rods of being made by nickel-titanium shape memory alloy material (1), be arranged on connection pawl (2-2,2-3) each orthopedic rod of making by nickel-titanium shape memory alloy material (1) of clamping respectively at lateral connector (2) two ends of making by nickel-titanium shape memory alloy material.
2, memory alloy spinal columnar orthopedic inner fixing system as claimed in claim 1 is characterized in that: along the every surperficial longitudinal direction of being made by nickel-titanium shape memory alloy material of orthopedic rod (1) one flat surface grinding (1-2) is set.
3, memory alloy spinal columnar orthopedic inner fixing system as claimed in claim 1 is characterized in that: the outer surface every orthopedic rod (1) bottom of being made by nickel-titanium shape memory alloy material is provided with pyramid reticulate pattern (1-1); The inner surface of encircling arm (4-1) at each base hook of being made by nickel-titanium shape memory alloy material (4) is provided with the pyramid reticulate pattern.
4, memory alloy spinal columnar orthopedic inner fixing system as claimed in claim 1 is characterized in that: along the every surperficial longitudinal direction of being made by nickel-titanium shape memory alloy material of orthopedic rod (1) the laser marker line is set.
5, memory alloy spinal columnar orthopedic inner fixing system as claimed in claim 1, it is characterized in that: the connection pawl (2-2 that is arranged on lateral connector (2) two ends of making by nickel-titanium shape memory alloy material, 2-3) comprise interior grasping face, end face, bottom surface and outer surface, connect pawl (2-2 at each, end face 2-3) and bottom surface be furnished with respectively at least two protruding fulcrums (2-2-1,2-3-1).
6, memory alloy spinal columnar orthopedic inner fixing system as claimed in claim 1, it is characterized in that: each the coupler body (3-1-1 that is arranged on saddle hook (3) two ends of making by nickel-titanium shape memory alloy material, on two sides 3-1-2), arrange respectively at least two protruding fulcrums (3-1-5,3-1-6); Each the arc side arm that is connected with the linking arm (3-1) of saddle hook (3) (3-2-1, be respectively provided on end face 3-2-2) and the bottom surface few two protruding fulcrums (3-1-7,3-1-8).
7, memory alloy spinal columnar orthopedic inner fixing system as claimed in claim 1 is characterized in that: the end face of encircling arm (4-1) of the base hook of being made by nickel-titanium shape memory alloy material (4) is provided with at least two pairs of protruding fulcrums (4-1-1); On the two sides of the coupler body (4-2) of the base hook of making by nickel-titanium shape memory alloy material (4) a protruding fulcrum (4-2-2) is set respectively.
8, memory alloy spinal columnar orthopedic inner fixing system as claimed in claim 1, it is characterized in that: be arranged on saddle hook (3) two ends coupler body (3-1-1 that makes by nickel-titanium shape memory alloy material, end 3-1-2) is butt hook head (3-1-3 respectively, 3-1-4), gib head (3-1-3, front portion 3-1-4) is provided with in two the pointed tooth of receiving, and the linkage section between the pointed tooth root of receiving in described two is processed into circular arc.
9, memory alloy spinal columnar orthopedic inner fixing system as claimed in claim 1, it is characterized in that: the front end of the coupler body (4-2) of the base hook of being made by nickel-titanium shape memory alloy material (4) connects gib head (4-2-1), the front portion of this gib head (4-2-1) is provided with in two the pointed tooth of receiving, and the linkage section between the pointed tooth root of receiving in described two is processed into circular arc.
10, memory alloy spinal columnar orthopedic inner fixing system as claimed in claim 9, it is characterized in that: connect a zygodont (4-2-3) respectively on the two sides of the coupler body (4-2) of base hook (4), a zygodont (4-2-3) that connects respectively on the two sides of coupler body (4-2) is relative with the pointed tooth of receipts in base hook (4) is gone up anterior two of being provided with of the gib head (4-2-1) that connects, and forms upper and lower forceps type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710024033XA CN100496426C (en) | 2007-07-13 | 2007-07-13 | Memory alloy spinal column orthopaedics inner fixing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710024033XA CN100496426C (en) | 2007-07-13 | 2007-07-13 | Memory alloy spinal column orthopaedics inner fixing system |
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| CN101099690A CN101099690A (en) | 2008-01-09 |
| CN100496426C true CN100496426C (en) | 2009-06-10 |
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| CNB200710024033XA Active CN100496426C (en) | 2007-07-13 | 2007-07-13 | Memory alloy spinal column orthopaedics inner fixing system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102188280A (en) * | 2011-06-07 | 2011-09-21 | 中国人民解放军第三军医大学第三附属医院 | Memory alloy spine malformation orthotic rod set |
| CN103622740A (en) * | 2013-12-12 | 2014-03-12 | 周建明 | Minimally invasive spine inner fixing system |
| CN103948425B (en) * | 2014-05-23 | 2017-02-15 | 潘滔 | Memory alloy neural plate zygopophysis pressurizing and fixing hook and using method thereof |
| CN105361938B (en) * | 2015-10-16 | 2017-09-12 | 广州迈普再生医学科技有限公司 | Fixed orthodontic device and preparation method thereof in scoliosis with 4D effects |
| CN107669376B (en) * | 2017-10-26 | 2020-08-11 | 北京爱康宜诚医疗器材有限公司 | Posterior spinal device |
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| CN101099690A (en) | 2008-01-09 |
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Assignee: Jiangsu IAWA Biotech Engineering Co., Ltd. Assignor: Shen Gang|Zhang Lanfa Contract record no.: 2012320000420 Denomination of invention: Memory alloy spinal columnar orthopedic inner fixing system Granted publication date: 20090610 License type: Exclusive License Open date: 20080109 Record date: 20120409 |