CN106510824B

CN106510824B - The Rachiocampis correction system of central single rod

Info

Publication number: CN106510824B
Application number: CN201710020235.0A
Authority: CN
Inventors: 邹德威
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-01-12
Filing date: 2017-01-12
Publication date: 2019-11-08
Anticipated expiration: 2037-01-12
Also published as: WO2018130202A1; CN106510824A

Abstract

The present invention provides a kind of Rachiocampis correction system of central single rod, the Rachiocampis correction system of the center single rod includes: single Orthopedic rod；N gear is set on the single Orthopedic rod；N arch shelter bridge；Each arch shelter bridge includes: torus with lateral openings and the pontic that is connected on the top surface of the torus and stretches out to the outside of the torus；The torus, which is included, to be meshed with the gear and the dentation inner wall of one-way locking and is arranged in except the dentation inner wall and the locking slot of the parallel dentation inner wall；To the plate of gear positioning, what can be dismantled is connected in the locking slot；The end of every section of pontic is arranged in pedicle screw, and two sections of pontics are equipped with two pedicle screws, and the axis of two pedicle screws intersects 5 ° of -30 ° of angles.The invention enables still can freely extend growth between upper hypocentrum, the physiological function of spinal growth has been fully retained.

Description

The Rachiocampis correction system of central single rod

Technical field

The present invention relates to medical instruments fields, and in particular to scoliosis operative correction indwelling device, especially one The Rachiocampis correction system of the central single rod of kind.

Background technique

Scoliosis (scoliosis) global incidence is about 1% or so, and radix counts per capita, and potential patient is with number Ten million counts.It is just gradually showed in growth and development after birth, harm is obvious intuitive trunk deformity, thus gives infant And family brings and greatly feels oneself inferior and menticide.Such as uncontrolled, quite a few case sustainable development, when more than 90 ° When, splanchnocoel volume can be caused to significantly reduce, the heart, lung, digestive tract function be impaired, obstacle, serious person can threat to life, cause to suffer from Youngster dies young too early.

To its pathogenesis, the mankind remain unknown so far, therefore can not be eradicated and be prevented for the cause of disease.It is unique effective Treatment method, be exactly once finding, it is invalid to guard, and performs the operation before it develops to severe, with Instrumental reduction deformity.

From the sixties in last century, the prehuman finished by American scholar Paul Harrington is in a helpless situation to this disease Situation without plan has started the beginning that operative correction is carried out with instrument first.It is known as the Orthopedic rod of " Harrington's stick " by descendant (Harrington Rod) is a cylindrical metal stick, is placed in the concave side of internal scoliosis, is strutted by upper and lower two o'clock, Curvature is reduced, thus correction deformity has established the theory of mechanics basis of later a variety of or even complicated orthopedic instruments.State Border scoliosis research association SRS (Scoliosis Research Society) is set up in the late four decades, has concentrated countries in the world All famous experts in line operative correction treatment practice, annual annual meeting, with regard to the surgical instrument of surgical technic and continuous development Adequately exchanged, constantly break through one and another operation forbidden zone, complete developed to the accessible operation of backbone, instrument also with Be constantly progressive, from unilateral Harrington's stick, develop to diversified bilateral double stick；And the combination of backbone, from the gold of upper and lower two o'clock Belong to hook, develops to the multilevel full pedicle screw of multi-segmental；Theory of mechanics is corrected, is corrected from the support of single plane, To Anterior, physiological bending is rebuild while correcting pathology bending.Thus SRS becomes the scoliosis of globalization The most active intercommunion platform and most authoritative academic organisations of operative treatment and technology development.However, in the road to conquer a stubborn disease On, without best, only more preferably, scoliosis surgery is started so far from Harrington's stick and Kazakhstan operation, over half a century goes over, Although surgical technic and instrument have great progress, but still there are problems.

The outstanding problem being entangled with the most is: so far, conforming to the principle of simplicity to numerous correcting technology and instrument, always at backbone rear Passing through pedicle screw between several segments in side is fulcrum, longitudinally connected, then applies and axially strut, and is laterally fought, three-dimensional rotation Turn after waiting corrective forces, must be in longitudinal direction by Orthopedic rod and screw locking, and use Orthopedic rod axial restraint to lock again in the other side. Therefore, although obtaining Rachiocampis correction, the backbone being corrected is securely fixed and is merged by double stick, to thoroughly lose life Ability that is long, increasing height, and 90% or more the person of undergoing surgery is the teenager of growth and development stage, therefore, teenager is in ridge The ability lost growth after the operation of column lateral bending, increase height.

In conclusion following problems exist in the prior art: existing scoliosis medical instrument makes teenager in backbone The ability lost growth after lateral bending operation, increase height.

Summary of the invention

The present invention provides a kind of Rachiocampis correction system of central single rod, that is, has the Rachiocampis correction of central single rod System, also referred to as central single rod, Anterior, can grow Rachiocampis correction system at pedicle of vertebral arch lateral connection, to solve Teenager loses growth after scoliosis surgery, increases the problem of ability of height.

For this purpose, the present invention proposes a kind of Rachiocampis correction system of central single rod, the scoliosis of the center single rod Correction system includes:

Single Orthopedic rod, the section of the Orthopedic rod are rectangle；

N gear is set on the single Orthopedic rod, and n is the natural number greater than 1；N gear is along described single orthopedic What the length direction of stick was successively spaced is arranged on the single Orthopedic rod；

N arch shelter bridge is arranged in the single Orthopedic rod along what the length direction of the single Orthopedic rod was successively spaced On；

Each arch shelter bridge includes: torus with lateral openings and is connected on the top surface of the torus simultaneously The pontic stretched out to the outside of the torus, the number of the pontic are two sections, and two sections of pontics are vertical described single strong The length direction of shape stick；Two sections of pontics intersect 150 ° of -175 ° of angles；

The torus include be meshed with the gear and one-way locking dentation inner wall and be arranged in the tooth Except shape inner wall and the locking slot of the parallel dentation inner wall；

To the plate of gear positioning, what can be dismantled is connected in the locking slot；

The end of every section of pontic is arranged in pedicle screw, and two sections of pontics are equipped with two pedicle screws, The axis of two pedicle screws intersects 5 ° of -30 ° of angles.

Further, the section of the Orthopedic rod is square.

Further, the end of every section of pontic has the platform for pedicle screw clamping.

Further, the gear is circle, and the axis of the gear is consistent with the middle line of the Orthopedic rod, the annulus Body and two sections of pontics are symmetrical about the middle line of the Orthopedic rod.

Further, the distance at both ends of the locking slot apart from torus is all larger than zero.

Further, the Rachiocampis correction system of the central single rod further include: be connected to two neighboring arch shelter bridge Between internal stress help growth column, it includes: that casing, two be arranged in described sleeve pipe are flexible that the internal stress, which helps growth column, Bar and the spring for being arranged in described sleeve pipe and being pressed between two telescopic rods, two telescopic rods are respectively in described sleeve pipe Both ends it is flexible.

Further, each telescopic rod is equipped with the clamp that can be clamped the pontic.

Further, the clamp is U-shaped.

Further, the material of the single Orthopedic rod and arch shelter bridge is medical titanium alloy.

Further, the spring is compressed spring, and the material of the spring is medical spring steel.

Although inventor is by studying for a long period of time it is also found that: Anterior rebuilds physiology while correcting pathology bending Bending, scientific and operability, is confirmed from theory and practice；But it so far, will be more by columned stick The pedicle screw of segment each point is longitudinally connected, implements three-dimensional rotation, columned stick in the side for deviateing posterior median line Make the rotation of 90o along axial direction, as a consequence it is hardly possible to which it is accurate to accomplish, can only visually observing and skill, experience by patient.It is more important Be or because of columned stick, to be difficult to accomplish to be maintained at a plane by Orthopedic rod pre-bending and when being adapted to pathology bending, Because being cylindric, it is easy to rolled in bending, especially when changing bending direction, thus usually occur " fried dough twist " shape and It is unsatisfactory.But regrettably so far, a variety of Orthopedic rods of world community are whole-colored cylindric, although as a result, The Orthopedic rod of pre-bending is successfully confirmed after long axis rotation 90o, the pathology for the backbone coronal-plane that can be connected, which is bent, to be eliminated And be changed into the physiological bending of sagittal plane, i.e. the natural curve of human body side, but usually because being difficult to accurately pre- in same plane Curved complete adaptation pathology curved cylindric Orthopedic rod when rotation, is also often difficult to accurately grasp by coronal-plane to sagittal plane folder The conversion that 90 ° of angle, and effect often up to occurs larger less than perfection, and with the difference of the eyesight of operator, workmanship and experience Gap, but for patients, a but almost unique operative chance in life.

From last century Mo, the turn of the century, pedicle screw instrumentation has been widely accepted and since the whole world is generally carried out, in ridge In the operation of column lateral bending, completely instead of hook and steel wire bundle, the basic mechanical fulcrum of various cylindric Orthopedic rods has been formed.Though So in a pair that the pedicle of vertebral arch of each vertebra section of the mankind is horizontal plane or so each one, and formed by vertebral plate, lateral connection hollow Bone canalis spinalis, vertebral plate just seems an arch bridge, and pedicle of vertebral arch is exactly the bridge pier at both ends, thus forms a laterally stable power Learn construction；And the long axis of pedicle of vertebral arch and posterior median line form regular acute angle from top to bottom, are gradually increased, from upper chest 5 ° of vertebra, until 30 ° of lower lumbar spine, screw enters centrum from rear pedicle, is embedded in completely bone tissue (Fig. 4), therefore relatively hang Hook and bundle have been tied with more preferably physical strength.But straightening technique so far is will not in the side for deviateing middle line Pedicle screw with segment is longitudinally connected, and a pair of pedicle of vertebral arch angled therebetween is during longitudinal corrective force but at one A individual point, therefore when this centrum local stress overload, it occur frequently that loosening, until being pulled out, this is scoliosis orthopedic Always the FAQs of patient is annoying in operation, to directly affect the total quality and effect of operation.

A pair of of pedicle of vertebral arch of the innovative same centrum of lateral connection of the invention enters centrum along pedicle of vertebral arch dissection long axis Angle, formation construct completely the same most stable of mechanical structure with physiological status mechanics to two pieces of pedicle screws each other.When right Wherein when one piece of application withdrawal force, shelter bridge transversely is transmitted to another piece of screw and is changed into propulsive force immediately, therefore almost complete It avoids entirely and is loosened the possibility extracted.In such a way that this is created, replace existing by vertebra above and below longitudinal unilateral pedicle of vertebral arch connection Body simultaneously locks, and backbone is made to lose the mode that ability is increased in growth.Even if still may be used between upper hypocentrum after the equal lateral connection of each section Freely extend growth, the physiological function of spinal growth has been fully retained.

In addition, the Promethean single rectangle Orthopedic rod of the present invention, pierces into more pieces of round outside but spuare inside one-directional rotation gears, not The central part of coplanar transverse direction shelter bridge, is connected with each other along backbone long axis centerline, on longitudinal best balanced line of force axis, i.e., in fact The control force that confrontation is longitudinally rotated necessary to correction scoliosis is showed, while rectangle Orthopedic rod still can be round outside but spuare inside It freely slides up and down in the square hole of wheel, while realizing longitudinal Anterior, and completely eliminates and spinal growth phase The contradictory extended restraint in longitudinal direction, will not influence growth in humans, while sublate the necessary idea using two Orthopedic rods.

In turn, the Orthopedic rod feature being for example square using rectangle: 1) each side length etc. of the mechanical strength in square When the diameter of circular rod, crossed diagonal is naturally larger than the diameter of round Orthopedic rod in square, such as when side length is equal to Diameter, when being 5mm, diagonal line is then 7mm, and in the case where not obvious thickening, mechanical strength is necessarily better than circular rod；2) Square one face of every rotation, is exactly 90 °, just in time, when pre-bending adaptation backbone pathology being needed to be bent, along a face with general It is same just in time because plane will not be slided when surgical instrument " 3 bending machines " pre-bending, angular deflection will not occur, thus Thoroughly eliminate " fried dough twist " phenomenon in operation.

Detailed description of the invention

Fig. 1 is the schematic perspective view of single Orthopedic rod of the invention；

Fig. 2 is the overlooking structure diagram of single Orthopedic rod of the invention；

Fig. 3 is the schematic view of the front view of single Orthopedic rod of the invention；

Fig. 4 is the schematic perspective view that single Orthopedic rod of the invention installs gear；

Fig. 5 is the side structure schematic view of gear of the invention；

Fig. 6 is the schematic perspective view of gear of the invention；

Fig. 7 is the schematic view of the front view of gear of the invention；

Fig. 8 is the schematic view of the front view of arch shelter bridge of the invention；

Fig. 9 is the overlooking structure diagram of arch shelter bridge of the invention；

Figure 10 is the backsight structural representation of arch shelter bridge of the invention；

Figure 11 is the present invention looks up structural representation of arch shelter bridge of the invention；

Figure 12 is the schematic perspective view of arch shelter bridge of the invention；

Figure 13 is the schematic view of the front view of pedicle screw of the invention；

Figure 14 is the overlooking structure diagram of pedicle screw of the invention；

Figure 15 is the dimensional decomposition structure diagram of pedicle screw and nut of the invention；

Figure 16 is the schematic perspective view of the Rachiocampis correction system of central single rod of the invention；

Figure 17 is the orthopaedic procedures schematic diagram of the Rachiocampis correction system of central single rod of the invention, wherein single to rectify Shape stick is not yet installed in arch shelter bridge；

Figure 18 is the orthopaedic procedures schematic diagram of the Rachiocampis correction system of central single rod of the invention, wherein single to rectify It is installed in arch shelter bridge after the bending of shape stick；

Figure 19 is the orthopaedic procedures schematic diagram of the Rachiocampis correction system of central single rod of the invention, wherein single to rectify The bending of shape stick is corrected after being installed in arch shelter bridge；

Figure 20 is the structural schematic diagram of Upper thoracic plane；

Figure 21 is the structural schematic diagram of Upper thoracic plane, and arch shelter bridge lateral connection pedicle screw is shown and is formed The stabilization mechanical structure of fulcrum each other；

Figure 22 is the structural schematic diagram of Thoracic plane；

Figure 23 is the schematic view of the front view that internal stress of the invention helps growth column, wherein telescopic rod does not extend out；

Figure 24 is the schematic perspective view that internal stress of the invention helps growth column, wherein telescopic rod stretches out；

Figure 25 is the schematic perspective view that internal stress of the invention helps growth column.

Drawing reference numeral explanation:

1 Orthopedic rod, 2 gear, 3 arch shelter bridge, 4 pedicle screw, 5 plate, 6 screw, 7 internal stress helps growth 8 spanner of column 9 vertebras

20 mounting hole, 21 external tooth

30 torus, 31 pontic, 32 pontic 301 opening 303 dentation inner wall, 305 locking slot, 320 platform

40 nuts

70 casing, 71 telescopic rod, 72 telescopic rod, 75 spring, 710 clamp

91 Upper thoracic, 92 Thoracic

Specific embodiment

For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed It is bright.

As shown in Figure 16, Figure 17, Figure 18, Figure 19, the Rachiocampis correction system of central single rod of the invention includes:

Single Orthopedic rod 1, as shown in Figure 1, Figure 2, Figure 3 shows, the section of the Orthopedic rod 1 are rectangle；The end of Orthopedic rod 1 is set There is screw hole, it can be with mounting screw 6, for fastening or being connected to vertebra position；

N gear 2 is set on the single Orthopedic rod 1 as shown in Figure 3 and Figure 4, and n is the natural number greater than 1；According to The vertebra length for needing actually to correct, n are multiple, the row that n gear is successively spaced along the length direction of the single Orthopedic rod Cloth is on the single Orthopedic rod；As shown in Fig. 5, Fig. 6 and Fig. 7, gear 2 is round outside but spuare inside ratchet, with rectangle Mounting hole 20 and the external tooth 21 arranged along circular circumference；Orthopedic rod 1 is threaded through in the mounting hole 20 of rectangle；

Gear 2 is round outside but spuare inside ratchet, is round outside but spuare inside constructions such as ancient Chinese " coin " " universe Long Tongbao ", in Side is square, and side length is slightly larger than the side length of square rod, and positive and negative work is poor < 0.5mm, in this way, can facilitate it is unresisted be inserted in square rod, and Bunchiness is worn by square rod, and free to slide as rail, when square rod is bent in one side, the thickness of sliding property and " coin " with The radian of " stick " is in proportionate relationship, when reaching the thickness for remaining stable enough, as long as stick does not occur the arc at right angle to acute angle, still It can art skating；When from the rotation of the adjacent side of rectangle, when rotating square rod from a towards the face b, outer circle ratchet necessarily realizes essence True 90 ° of rotations and irreversible, achieve the purpose that precisely orthopedic and lock stick at any time, and outer circle ratchet is necessarily realized accurately 90 ° of rotations and irreversible, achieve the purpose that precisely orthopedic and lock at any time；

N arch shelter bridge 3 is arranged in the single Orthopedic rod along what the length direction of the single Orthopedic rod was successively spaced On；

As shown in Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, each arch shelter bridge 3 includes: the annulus with lateral openings 301 It body 30 and is connected on the top surface of the torus 30 and to the pontic that the outside of the torus is stretched out, the pontic Number is two sections, respectively pontic 31 and pontic 32, the length direction of the vertical single Orthopedic rod of two sections of pontics；Pontic 31 and pontic 32 intersect 150 ° of -175 ° of angles；So that pedicle of vertebral arch dissection long axis enters two pieces of pedicle screws of centrum each other Angle forms and constructs completely the same most stable of mechanical structure with physiological status mechanics；

The torus 30 include be meshed with the gear 2 and one-way locking dentation inner wall 303 and setting exist Except the dentation inner wall and the locking slot 305 of the parallel dentation inner wall；

To the gear 2 positioning plate 5, as shown in figure 16, what can be dismantled is connected in the locking slot 305, with After gear 2 is installed in arch shelter bridge 3, to 2 positioning and locking of gear；

Pedicle screw 4, is arranged in the end of every section of pontic, and two sections of pontics are equipped with two pedicle of vertebral arch screw Nail, as shown in Figure 16 and Figure 21, the axis of two pedicle screws intersects 5 ° of -30 ° of angles.It is same using transversely and horizontally connection The arch form bridge structure of one centrum a pair of pedicle of vertebral arch replicates under physiological status single centrum a pair of pedicle of vertebral arch stable fulcrum each other Most reasonable mechanics construction, realize each stress plane apply corrective force when, not only balance centrum, but also effectively prevent pine It is de-

The present invention is precisely orthopedic in realization and maintains under sufficiently stable preceding topic, after still allowing the free edge correction of backbone Long axis stretching, extension extends, and realizes the free-revving engine for retaining growth function.

Further, the section of the Orthopedic rod 1 is square.The square Orthopedic rod feature that Orthopedic rod 1 is square: 1) power Intensity is learned when each side length of square is equal to the diameter of circular rod, crossed diagonal is naturally larger than round rectify in square The diameter of shape stick, such as when side length is equal to diameter, when being 5mm, diagonal line is then 7mm, in the case where not obvious thickening, Mechanical strength is necessarily better than circular rod；2) one face of square every rotation, is exactly 90 °, just in time, and pre-bending is needed to be adapted to backbone When pathology is bent, when along general surgical instrument " the 3 bending machines " pre-bending of a face, because plane will not be slided, same every minute and second is not Angular deflection will not occur for difference, to thoroughly eliminate " fried dough twist " phenomenon in operation.

Further, as shown in figure 12, the end of every section of pontic has the platform for the pedicle screw 4 clamping 320, the end of pontic is, for example, rectangular section, so as to the clamping of pedicle screw 4.

Further, the gear 2 is circle, and such as Figure 16, the axis of the gear is consistent with the middle line of the Orthopedic rod, The torus 30 and two sections of pontics are symmetrical about the middle line of the Orthopedic rod 1, to realize two sides uniform force.

Further, as shown in figure 12, the distance at both ends of the locking slot 305 apart from torus 30 is all larger than zero, with Just fixing insertion 5 prevent plate 5 to be detached from.

Further, the Rachiocampis correction system of the central single rod further include: be connected to two neighboring arch shelter bridge Between internal stress help growth column 7, as shown in Figure 23, Figure 24 and Figure 25, the internal stress help growth column include: casing 70, set Set telescopic rod 71 and telescopic rod 72 in described sleeve pipe and be arranged in described sleeve pipe 70 and be pressed on two telescopic rods it Between spring 75, two telescopic rods are flexible at the both ends of described sleeve pipe respectively.By the elastic reaction of spring, two can be made to stretch Contracting bar stretches out, and auxiliary increases the distance between two neighboring arch shelter bridge, so that human body be made to grow tall.

Further, each telescopic rod is equipped with the clamp 710 that can be clamped the pontic, to be stuck in pontic On.

Further, the clamp 710 is U-shaped, is clamped convenient and efficient.

Further, the material of the single Orthopedic rod 1 and arch shelter bridge 3 is medical titanium alloy, light, solid, mechanics Performance is good.

Further, the spring 75 is compressed spring, and the material of the spring 75 is medical spring steel, and suitable human body makes With.

In the present invention, such as Figure 16, Figure 17, Figure 18, Figure 19, Figure 20, Figure 21 and Figure 22, arch shelter bridge cross 3 is same to connecting A pair of of pedicle of vertebral arch of centrum, midpoint face backbone posterior median line, bridge floor longitudinal grooved only allow square rod to put from surface longitudinal Enter, with bridge floor square crossing, side side is that wholecircle shape opens up adaptation and accommodates the space of circle wheel, and the other side is greater than for diameter Square stick diagonal line but the circular open for being less than circle wheel, effectively preventing circle wheel from entering from side, unidirectional tooth is engaged to be received Afterwards, and from the other side deviate from.After the round outside but spuare inside ratchet edge square rod that fluting has been put into from surface is positioned for axle center push-in, Only allow gear single direction rotation, realize in Anterior, the resistance of pathology deformity is effectively fought at any time, by human coronary The curved backbone of the pathology in face to 90 ° of sagittal plane rotation during, each stepping lock at once it is irreversible, be achieved in from Hold, fine stepping, until complete face in 90 ° of finely changing rotates, stopping at this time i.e. fixation is irreversible, no longer needs to do any additional Locking, when completely eliminating pole confrontation pathology deformity resistance single direction rotation, while reinforcing, it is necessary to make great efforts to maintain origin, slightly One looses one's grip, then inversely retracts, and so again and again, is often not excessive, is exactly that not enough, and when locked, movement is slightly not in time It takes a turn for the worse and retracts, the difficult situation that degree is lost.Meanwhile shelter bridge lateral connection a pair of pedicle screw, it provides most steady Fixed mechanics fulcrum, one screw of any of them is all almost impossible individually to be extracted, also inevitable while correcting lateral bending The accurate recovery backbone physiological bending of face rotation is changed by square rod.

As shown in Figure 20, Figure 21 and Figure 22, the central force axis for realizing single rod in backbone posterior median line carries out three to backbone Rotational correction is tieed up, and in rotary course, part centrum caused by different curvature position institutes certainty is bent coronal as pathology Lateral inclination occurs for face, also inevitable to be returned to coronal-plane horizontal equilibrium with the conversion in face.

Pedicle screw 4, as shown in Figure 13, Figure 14 and Figure 15, using universal turning bench pedicle screw, such as Figure 20, Figure 21 And Figure 22 can fully meet each segment a pair of pedicle of vertebral arch 5 ° -30 ° of folder from top to bottom for Upper thoracic 91 and Thoracic 92 Angle variation screws in top nut (nut 40) and locks gimbal suspension afterwards, makes a pair of screws and lateral shelter bridge with accurately angle Firm connection.

Internal stress helps growth column 7, is realized by spring compressed in sleeve, depending on patient age and individual instances, by doctor Selection uses, and frame is located at newel original pathology and is bent concave side, can set different internal stress intensity between about each section cross-bridges (spring decision) and maximal end point length, single axial centre square rod, the physiological bending longitudinal axis for itself backbone having been allowed to be fixed along it Free growth, but because axial liter lifting force can further stimulating growth, therefore can be taken the circumstances into consideration to select to use by doctor.

The Orthopedic rod of the preferred square of the present invention, but when as the correction of backbone posterior median line single rod, however not excluded that it is other for holding The Orthopedic rod of any shape.

The preferably round outside but spuare inside ratchet of the present invention and corresponding arch form shelter bridge.But it is not excluded for realizing same mesh for this field , i.e. stepping is irreversible.Not only achievable unidirectional circle rotation, but also allow other any structures of axially free sliding.

In the present invention, using the lateral shelter bridge of same centrum a pair of the pedicle of vertebral arch of lateral connection.In addition to this, other rods, plate shape The device of same centrum a pair of the pedicle of vertebral arch of the lateral connection of shape (has cross-connecting apparatus, but without directly horizontal in the prior art Even a pair of of pedicle of vertebral arch is all the stick for connecting two sides and longitudinally having connected the single pedicle of vertebral arch of Different Plane).

As shown in Figure 17 to 19, several planes are selected in the backbone of lateral bending, are implanted into a pair of of pedicle of vertebral arch in each plane centrum Screw locks screw and arch shelter bridge.The Orthopedic rod that pre-bending is adapted to lateral bending penetrates the equal round outside but spuare inside unidirectional tooth of quantity Wheel；The Orthopedic rod that pre-bending has been adapted to is put into each shelter bridge by top surface, round outside but spuare inside ratchet is slided along square rod has been positioned, Arch shelter bridge is pushed by side, so that both ends handle is held 90 ° of Orthopedic rod rotations using spanner 8；It completes central 90 ° of Orthopedic rod and changes face rotation After turning, (front) pathology bending in human coronary face is corrected, while having rebuild sagittal plane (side) physiological bending, installs both ends On-slip screw, art finish.

The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention.For this Each component part of invention can be combined with each other under conditions of not conflicting, any those skilled in the art, not depart from this Made equivalent changes and modifications, should belong to the scope of protection of the invention under the premise of the conceptions and principles of invention.

Claims

1. a kind of Rachiocampis correction system of center single rod, which is characterized in that the Rachiocampis correction system of the center single rod System includes:

Single Orthopedic rod, the section of the Orthopedic rod are rectangle；

N gear is set on the single Orthopedic rod, and n is the natural number greater than 1；N gear is along the single Orthopedic rod What length direction was successively spaced is arranged on the single Orthopedic rod；

N arch shelter bridge is arranged on the single Orthopedic rod along what the length direction of the single Orthopedic rod was successively spaced；

Each arch shelter bridge includes: torus with lateral openings and is connected on the top surface of the torus and to institute The pontic that the outside of torus is stretched out is stated, the number of the pontic is two sections, and two sections of pontics are perpendicular to described single orthopedic The length direction of stick；Two sections of pontic intersections are in 150 ° of -175 ° of angles；

The torus include be meshed with the gear and one-way locking dentation inner wall and be arranged in the dentation Except wall and the locking slot of the parallel dentation inner wall；

Pedicle screw, is arranged in the end of every section of pontic, and two sections of pontics are equipped with two pedicle screws, and two The axis of pedicle screw intersects 5 ° of -30 ° of angles.

2. the Rachiocampis correction system of center single rod as described in claim 1, which is characterized in that the section of the Orthopedic rod It is square.

3. the Rachiocampis correction system of center single rod as described in claim 1, which is characterized in that the end of every section of pontic Portion has the platform for pedicle screw clamping.

4. the Rachiocampis correction system of center single rod as described in claim 1, which is characterized in that the gear is circle, The axis of the gear is consistent with the middle line of the Orthopedic rod, and the torus and two sections of pontics are about the Orthopedic rod Middle line is symmetrical.

5. the Rachiocampis correction system of center single rod as described in claim 1, which is characterized in that the locking slot distance circle The distance at the both ends of ring body is all larger than zero.

6. the Rachiocampis correction system of center single rod as described in claim 1, which is characterized in that the ridge of the center single rod Column lateral bending correction system further include: the internal stress being connected between two neighboring arch shelter bridge helps growth column, and the internal stress helps Growth column includes: casing, two telescopic rods being arranged in described sleeve pipe and is arranged in described sleeve pipe and is pressed on two Spring between telescopic rod, two telescopic rods are flexible at the both ends of described sleeve pipe respectively.

7. the Rachiocampis correction system of center single rod as claimed in claim 6, which is characterized in that on each telescopic rod Equipped with the clamp that can be clamped the pontic.

8. the Rachiocampis correction system of center single rod as claimed in claim 7, which is characterized in that the clamp is U-shaped.

9. the Rachiocampis correction system of center single rod as described in claim 1, which is characterized in that the single Orthopedic rod and The material of arch shelter bridge is medical titanium alloy.

10. the Rachiocampis correction system of center single rod as claimed in claim 6, which is characterized in that the spring is compression Spring, the material of the spring are medical spring steel.