CN206910388U - For inserting the ejector apparatus of scoliosis nail rod correction bracket - Google Patents
For inserting the ejector apparatus of scoliosis nail rod correction bracket Download PDFInfo
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- CN206910388U CN206910388U CN201621434361.8U CN201621434361U CN206910388U CN 206910388 U CN206910388 U CN 206910388U CN 201621434361 U CN201621434361 U CN 201621434361U CN 206910388 U CN206910388 U CN 206910388U
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Abstract
The utility model discloses a kind of ejector apparatus for being used to insert scoliosis nail rod correction bracket, including ejector and fixed mount, ejector includes push-pull arm and the sleeve being connected on push-pull arm, sleeve, which is provided with, to be used to be sheathed on the socket through hole outside pedicle screw, push-pull arm includes middle connecting seat, connecting rod and adjusting rod, connecting rod and adjusting rod are connected by that can lock universal joint and middle connecting seat respectively, in in connecting rod, adjusting rod is connected on fixed mount sleeve connection by can adjust the force adjustment component of push-pull effort.The ejector apparatus has the advantages that simple in construction, operation is easy to adjust, laborsaving, and applicability is good.
Description
Technical field
It the utility model is related to bone surgery technical field of medical instruments, and in particular to one kind is used to insert scoliosis nail
The ejector apparatus of rod correction bracket.
Background technology
Scoliosis refers to that the side of backbone is convex and rotation deformity, is divided into infantilism（0 ~ 3 year old）, Shao Erxing（4 ~ 10 years old）, it is blue or green
Juvenile form（More than 10 years old）, it has a strong impact on the health and mental health of children.The puberty of severe scoliosis
Patient, can row orthopedic fusion art, performing the operation, it is relatively small that its vertebral column development and cardiopulmonary are influenceed.With advancing age, juvenile
Develop into that adolescence deformity of spine is very serious, and operating difficulty is big the phase, wound is big, and complication is more.Juvenile's phase deformity of spine is soft
It is soft good, it is easy to correct.For scoliosis low age infant, orthopedic fusion, which is performed the operation, significantly affects the hair of children's backbone and thorax
Educate, cause trunk and lower limb out of proportion, it is difficult to allow people to receive.For can also influence the heart, lung compared with small children, spinal fusion surgery
Development and function.Post operation spinal mobility and function are necessarily by fusion backbone adjacent segment especially waist section backbone regression, phase
Adjacent section kyphosis deformity, low back pain, the related complication of implants, and the incidence of delayed infection are also higher, therefore state
Some inside and outside scholars have attempted to not merged the method treatment underage child scoliosis of backbone with some.
Clinically the non-fused operation of scoliosis mainly includes three major types at present：（1）Spinal growth rod technology；（2）Vertically
Titanium rib technology can be extended（VEPTR）；（3）Preceding road centrum staple technology.Wherein, the above two are non-fusion technology, the latter's right and wrong
Complete integration technology, rear both are unsatisfied with due to clinical efficacy, and present clinic is rarely employed.Treat children's backbone both at home and abroad at present
Lateral bending it is most widely used be growing rod technology.Spinal fusion techniques treat crowd's scoliosis clinical efficacy satisfaction of reaching maturity,
But treat growing children scoliosis, it may appear that many problems and failure, most important problem are uncontrollable postoperative backbones
The development that continues of lateral bending aggravates, and " bent axle " phenomenon occurs.In addition, fusion too early causes infant upper body short and small and influences the heart, lung work(
It can develop, can not also receive for people.The also double stick growing rod technology of popularization and application at home at present, it was considered as once
Method, but report its deficiency one after another in recent years both at home and abroad：（1）Need to perform the operation repeatedly（Average every 6 months once）；（2）Disconnected rod takes off
Hook（Or top screw is extracted）；（3）There is kyphosis deformity after the intersection of top；（4）Strut failure；（5）Spontaneous fusion etc. is concurrent
Disease is common；（6）Higher infection rate etc..More common aggravates and struts failure for deformity recurrence after correction.It is former to study carefully its failure
Because substantially there is three aspects：（1）Do not regulate and control the ability of asymmetric growth, operation repeatedly can only be leaned on to strut, it is convex when scoliosis
Side growth ability just supports motionless when exceeding concave side distracting force.The scoliosis for the treatment of adult is corrected merely with mechanical force,
And children's scoliosis orthopedic system, in addition to it can provide satisfied rectification effect at once in operation, it is also necessary to can be for
The asymmetric stress for the lateral bending centrum both sides that the scoliosis of Post operation remaining is formed and the asymmetric growth thus triggered are carried out
Regulation and control, reverse Hueter-Volkman law effects --- tensile stress can be produced in concave side and promote the life of backbone concave side terminal plate of vertebral body
It is long, and convex side produces compression, suppresses the growth of convex side hemivertebra soleplate, so as to reduce lateral bending during children growth after surgery
Correction is lost or lateral bending degree is further voluntarily corrected；（2）After corrective procedure, because upper and lower two pieces of pedicle screws consolidate rod
It is fixed, " bolt drawing " effect is formed in the concave side of lateral bending, limits the ability of its regulation and control growth.At present, in treatment children's scoliosis
In pedicle screw system apparatus for correcting, the postoperative upper and lower side in scoliosis concave side is all held by screw bolt, when concave side uses
After distracting force correction, it is necessary to upper and lower side screw-driving is strutted into rod with fixation, otherwise it will be retracted.The initial rank strutted
Section, concave side centrum are acted on by tensile stress, and the growth for elapsing centrum over time and the bolt for following closely rod are drawn, and will necessarily be occurred in the later stage
Centrum concave side produces compression again, increases asymmetric stress to immature centrum both sides, can aggravate children's ridge again in turn
Post lateral bending.In theory, need to be to concave side using lasting distracting force in order to overcome " bolt drawing ", but growing rod technology does not reach at present
This is required, it is necessary to strut correction by operation repeatedly（Every 6 months once）, this is undoubtedly cruel to children.It is and more next
More users has found that rear distraction in 2 years is increasingly difficult to, and supports completely to the end motionless.（3）Domestic and international existing apparatus for correcting can not
Enough correction stress is provided at the top vertebra position of lateral bending.The longitudinal load that biomechanics Research is proved scoliosis mainly collects
In in top vertebra and its neighbouring upper hypocentrum section., can not be to top but the corrective force of growing rod is concentrated mainly on upper and lower side vertebra
Vertebra position provides enough correction stress, and top vertebra does not have pedicle screw to fix, when the convex pleurocentrum soleplate growing power of scoliosis
During more than concave side pyramidal support corrective force, just support it is motionless, it is powerful support to open can also induce junctional area above the vertebra position of upper end
Kyphosis deformity." the Magnetic Control rod " of latest research（MCGR）, it is as the orthopedic principle of double stick growing rod, every 4
The moon is extended with magnetic force in vitro.Its advantages of is can to avoid the Repeated Operation wound to children, but it there is also given birth to double stick
All shortcomings of long rod, can not equally correct lateral bending at once, the disconnected rod of de- nail easily occur, top screw is extracted, supports motionless, near-end
The problems such as kyphosis deformity of joint portion.
In summary, in terms of the problem of scoliosis non-fusion technology is present both at home and abroad at present has following four：（1）Can not
Regulate and control the asymmetric growth of scoliotic spine, at once can not correct the lateral bending of sick child when operation.（2）It is postoperative vertebra to be present in concave side
Pedicle screw " bolt drawing " phenomenon, it is impossible to allow direction free growth of the centrum along correction stick to extend, whole in children grows
Phase can not maintain correction not lose or lose less, or even scoliosis can not be allowed moulding, further voluntarily correct, and also be needed after ripe
Fusion is done again.（3）The pedicle of vertebral arch screw that growing rod both ends are only fixed on scoliosis upper and lower side vertebra in vivo nails on, and pushes up vertebra
And its neighbouring upper hypocentrum is without nail pedicle fix, the defects of this is fatal, lacks correction stick and push concave side to what top vertebra applied
Side-thrust and the fixed effect for suppressing soleplate growth of pressurizeing is carried out to top vertebra convex side.（4）Installation growing rod operation need to cut three 6
~ 10cm otch, appear screw entrance point and put nail, the stability of bone grafting increase screw, operation wound around pedicle screw
Still big, there are the complication such as infection, spontaneous fusion in some patientss.
The content of the invention
The technical problems to be solved in the utility model is to overcome the shortcomings of the prior art, there is provided it is a kind of simple in construction,
Operate easy to adjust, laborsaving, the good ejector apparatus for being used to insert scoliosis nail rod correction bracket of applicability.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of ejector apparatus for being used to insert scoliosis nail rod correction bracket, including ejector and fixed mount, it is described to push away
Apical organ includes push-pull arm and the sleeve being connected on push-pull arm, and the sleeve, which is provided with, to be used to be sheathed on the set outside pedicle screw
Hole is connected, the push-pull arm includes middle connecting seat, connecting rod and adjusting rod, and connecting rod and adjusting rod are respectively by that can lock ten thousand
It is connected to joint and middle connecting seat, in connecting rod, adjusting rod is connected sleeve connection by can adjust the force adjustment component of push-pull effort
It is connected on fixed mount.
Above-mentioned ejector apparatus, it is preferred that the one end open of the socket through hole, which is provided with, to be used to be fastened in vertical connecting bar
The groove of falling U, the width for the groove of falling U are more than or equal to the diameter of the vertical connecting bar of nail rod correction bracket.
Above-mentioned ejector apparatus, it is preferred that the fixed mount includes framework and the mounting assembly for installing fixed frame,
Framework has two to four installing frame sides for being used to fix ejector, and each installing frame side is provided with some for being caught in adjusting rod
Neck, some necks are along installing frame side arranged for interval；The adjusting part includes the 3rd adjusting nut and the 4th adjusting nut, adjusts
Pole is screw rod, and adjusting rod is arranged in neck, and the 3rd adjusting nut and the 4th adjusting nut screw thread are with the installation of adjusting rod
On, and the 3rd adjusting nut and the 4th adjusting nut are divided into the both sides on installing frame side.
Above-mentioned ejector apparatus, it is preferred that the mounting assembly includes at least two support fixed mechanisms, and each support is fixed
Mechanism includes pole and the U-shaped folder block for being fastened on operating table, and one end of the pole is connected with framework, the other end and U
Type fixture block is connected, and screw thread is connected with by screwing the lock-screw for pushing against or unclamping operating table on U-shaped folder block.
Above-mentioned ejector apparatus, it is preferred that between the 3rd adjusting nut and installing frame side and the 4th adjusting nut
Pad is equipped between installing frame side.
Above-mentioned ejector apparatus, it is preferred that can lock universal joint includes ballhead and lock nut, and lock nut is connected to centre and connected
On joint chair, spherical cavity is provided between lock nut and middle connecting seat, ballhead is installed in spherical cavity, lock nut and middle connecting seat spiral shell
Line connects and can be affixed by screwing compression or release ballhead, connecting rod or adjusting rod and ballhead.
Above-mentioned ejector apparatus, it is preferred that the axis of the sleeve and the axis of connecting rod are misaligned.
Compared with prior art, the utility model has the advantage of：The utility model is rectified for inserting scoliosis nail rod
The ejector apparatus of Positive rack, with inserting the epicentral pedicle screw of vertebra promotion centrum can be coordinated to be drawn close to midspinal line, with
Realize correction lateral bending.And its connecting rod and adjusting rod are connected by that can lock universal joint and middle connecting seat respectively, can be adjusted
The whole operation line of force, its applicability are good.The ejector apparatus has the advantages that simple in construction, operation is easy to adjust, laborsaving.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of fixing axle pedicle screw.
Fig. 2 is the cross section structure diagram of movable axis pedicle screw.
Fig. 3 is the rivet nut of movable axis pedicle screw and the structural representation of bulb.
Fig. 4 is the cross section structure diagram of plug screw.
Fig. 5 is the dimensional structure diagram of plug screw.
Fig. 6 is the dimensional structure diagram of block.
Fig. 7 is the cross section structure diagram of block.
Fig. 8 is the dimensional structure diagram that unidirectional fixed pedicle screw coordinates with vertical connecting bar.
Fig. 9 is the cross section structure diagram that unidirectional fixed pedicle screw coordinates with vertical connecting bar.
Figure 10 is the unidirectional dimensional structure diagram slided pedicle screw and coordinated with vertical connecting bar.
Figure 11 is the unidirectional cross section structure diagram slided pedicle screw and coordinated with vertical connecting bar.
Figure 12 is the dimensional structure diagram that universal fixed pedicle screw coordinates with vertical connecting bar.
Figure 13 is the cross section structure diagram that universal fixed pedicle screw coordinates with vertical connecting bar.
Figure 14 is the dimensional structure diagram that universal slip pedicle screw coordinates with vertical connecting bar.
Figure 15 is the cross section structure diagram that universal slip pedicle screw coordinates with vertical connecting bar.
Figure 16 is the structural representation of vertical connecting bar.
Figure 17 is the front view structure view of ejector.
Figure 18 is the broken section structural representation of ejector.
Figure 19 is the dimensional structure diagram that ejector is arranged in the neck on installing frame side.
Figure 20 is the dimensional structure diagram that fixed mount is arranged on operating table.
Figure 21 is to put the schematic diagram that nail position is put in nail example.
Figure 22 is to put to follow closely the overlooking the structure diagram after rod correction bracket corrects scoliotic spine in nail example.
Figure 23 is to put to follow closely the side structure schematic view after rod correction bracket corrects scoliotic spine in nail example.
Figure 24 is the cross section structure diagram of the bulb pressure pad of movable axis pedicle screw.
Marginal data：
1st, pedicle screw；10th, rivet nut；11st, nail seat；12nd, it is broken long-armed；121st, break arm；122nd, galianconism；13rd, plug screw；
131st, threaded portion；132nd, arc cushion block；1321st, deep-slotted chip breaker；1322nd, cushion block body；1323rd, convex pin；1324th, rotation stop convex shoulder；14、
U-shaped structure；15th, bulb；16th, bulb pressure pad；17th, consent is held；18th, recessing mark；19th, block；191st, cap aperture is held；120th, support
Platform；2nd, connecting bar is indulged；20th, barred body；21st, connector；1000th, ejector；1001st, sleeve；10011st, the groove of falling U；1002nd, push-pull arm；
10021st, connecting rod；10022nd, middle connecting seat；10023rd, adjusting rod；10024th, the 3rd adjusting nut；10025th, the 4th regulation
Nut；10026th, ballhead；10027th, lock nut；1100th, fixed mount；1101st, framework；11011st, installing frame side；11012nd, neck；
1102nd, fixed mechanism is supported；11021st, pole；11022nd, U-shaped folder block；11023rd, lock-screw.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 17 to Figure 20, the present embodiment is used for the ejector apparatus for inserting scoliosis nail rod correction bracket, including
Ejector 1000 and fixed mount 1100, ejector 1000 include push-pull arm 1002 and the sleeve being connected on push-pull arm 1002
1001, sleeve 1001, which is provided with, to be used to be sheathed on the socket through hole outside pedicle screw 1, and push-pull arm 1002 includes middle connecting seat
10022nd, connecting rod 10021 and adjusting rod 10023, connecting rod 10021 and adjusting rod 10023 are respectively by that can lock universal joint
It is connected with middle connecting seat 10022, sleeve 1001 is connected in connecting rod 10021, and adjusting rod 10023 is by can adjust push-pull effort
Force adjustment component be connected on fixed mount 1100.
The ejector apparatus can coordinate promotion centrum to be drawn close to midspinal line with inserting the epicentral pedicle screw 1 of vertebra,
Lateral bending is corrected to realize.Its connecting rod 10021 and adjusting rod 10023 are respectively by that can lock universal joint and middle connecting seat
10022 are connected, and can adjust the operation line of force, and its applicability is good, and can be by connecting rod 10021 and adjusting rod 10023 after adjusting
Locking, makes connecting rod 10021 and adjusting rod 10023 are fixedly connected with middle connecting seat 10022.The ejector apparatus has structure simple
It is single, operate the advantages that easy to adjust, laborsaving.
In the present embodiment, the one end open for being socketed through hole is provided with the groove of falling U 10011 for being used for being fastened in vertical connecting bar 2, should fall
U-type groove 10011 is to be opened in two symmetrical grooves on the annular sidewall of cylindrical sleeve 1001, the width of the groove of falling U 10011 be more than or
Equal to the diameter of the vertical connecting bar 2 of nail rod correction bracket, the length of inverted U groove 10011 accounts for 2/3rds of the length of sleeve 1001
To 3/4ths, beneficial to vertical connecting bar 2 through pedicle screw 1 and the inverted U groove 10011 of sleeve 1001.
In the present embodiment, fixed mount 1100 includes framework 1101 and the mounting assembly for installing fixed frame 1101, frame
Frame 1101 has two installing frame sides 11011 for being used to fix ejector 1000, and two installing frame sides 11011 are arranged at intervals and phase
Mutually parallel, each installing frame side 11011 is provided with some necks 11012 for being used to be caught in adjusting rod 10023, some necks 11012
Along the arranged for interval of installing frame side 11011；Adjusting part includes the 3rd adjusting nut 10024 and the 4th adjusting nut 10025, regulation
Bar 10023 is screw rod, and adjusting rod 10023 is arranged in neck 11012, the 3rd adjusting nut 10024 and the 4th adjusting nut
10025 screw threads are with the installation of on adjusting rod 10023, and the 3rd adjusting nut 10024 and the 4th adjusting nut 10025 are divided into
The both sides on installing frame side 11011.The 3rd adjusting nut 10024 and the 4th adjusting nut 10025 are adjusted, adjusting rod can be forced
10023 move along neck 11012, and then adjust push-pull effort.
In the present embodiment, mounting assembly includes four support fixed mechanisms 1102, each to support fixed mechanism 1102 to include branch
Bar 11021 and the U-shaped folder block 11022 for being fastened on operating table, one end of pole 11021 is connected with framework 1101, another
End is connected with U-shaped folder block 11022, and screw thread is connected with by screwing the lock for pushing against or unclamping operating table on U-shaped folder block 11022
Tight screw 11023.Four support fixed mechanisms 1102 are separately fixed on two sides of operating table two-by-two, can be by framework 1101
The solid and reliable surface for being fixed on operating table, the structure of the support fixed mechanism 1102 is simple, dismounting is easy.
In the present embodiment, between the 3rd adjusting nut 10024 and installing frame side 11011 and the 4th adjusting nut 10025
Pad is equipped between installing frame side 11011.
In the present embodiment, can lock universal joint includes ballhead 10026 and lock nut 10027, during lock nut 10027 is connected to
Between on connecting seat 10022, spherical cavity is provided between lock nut 10027 and middle connecting seat 10022, ballhead 10026 is installed in ball
Shape intracavitary, lock nut 10027 are threadedly coupled with middle connecting seat 10022 and can be by screwing compression or unclamping ballhead 10026, even
Extension bar 10021 or adjusting rod 10023 and ballhead 10026 are affixed.Lock nut 10027, which has, supplies connecting rod 10021 or adjusting rod
10023 through holes passed through.
In the present embodiment, the axis and the axis of connecting rod 10021 of sleeve 1001 are misaligned.
As shown in Figures 1 to 5, the pedicle screw 1 followed closely in rod correction bracket can be rolled over including rivet nut 10, nail seat 11, two
Disconnected long-armed 12, plug screw 13 and block 19, rivet nut 10 are connected with nail seat 11, and two broken long-armed 12 are contrario fixedly connected on nail
U-shaped structure 14 is formed on seat 11, embedded vertical connecting bar 2 is used in U-shaped structure 14, plug screw 13 is used to be screwed into two broken long-armed 12
U-shaped structure 14 in compress or do not compress vertical connecting bar 2, when plug screw 13 compresses vertical connecting bar 2, indulge connecting bar 2 and the phase of pedicle screw 1
To fixation, when plug screw 13 does not compress vertical connecting bar 2, indulge connecting bar 2 and relative with pedicle screw 1 can slide.Rivet nut 10 to be solid or
Hollow, hollow rivet nut 10 has seal wire through hole vertically, and rivet nut 10 is provided with screw thread.Nail seat 11 is short cylindrical shape, and two can roll over
Disconnected long-armed 12 are fixedly connected with nail seat 11.
Opening position on two broken long-armed 12 close to nail seat 11 is equipped with recessing mark 18, and recessing mark 18 is broken by two
Long-armed 12 points are fixedly connected for disconnected arm 121 and galianconism 122, galianconism 122 with nail seat 11, and disconnected arm 121 can be rolled at recessing mark 18
It is disconnected, and then disconnected arm 121 is removed.There is two broken long-armed 12 inner surfaces of pedicle screw 1 arm 121 of autotomying to extend to
The internal thread of galianconism 122, two galianconism 122 have external screw thread close to the end of recessing mark 18.Plug screw 13 includes threaded portion 131 and arc cushion block
132, the outer surface of threaded portion 131 has the external screw thread matched with broken long-armed 12 inner surface internal thread, one end of plug screw 13
With consent 17 is held, it is polygonal hole to hold consent 17, and the other end of threaded portion 131 is flexibly connected with arc cushion block 132, threaded portion
131 and arc cushion block 132 can relatively rotate, it is preferred that arc cushion block 132 is rotatably mounted in threaded portion by rivet
On 131.Arc cushion block 132 is provided with the deep-slotted chip breaker 1321 matched with the curved surfaces of vertical connecting bar 2, is compressing arc cushion block 132
Its compression effect is good during vertical connecting bar 2, when not compressing vertical connecting bar 2, can play good guide effect.Two broken long-armed
12 afterbodys away from nail seat 11 are additionally provided with smooth section, and when plug screw 13 inserts along between broken long-armed 12, smooth section is to plug screw
13 play the guiding role.
As shown in Figure 6 and Figure 7, block 19 is barrel-shaped that inwall has the internal thread to match with the external screw thread of galianconism 122, lid
The opening of cap 19 has smooth section, and when block 19 is enclosed on galianconism 122 close to the one end of recessing mark 18 and is screwed into, guiding is played to block 19
Effect.The bottom of block 19, which has, holds cap aperture 191, and it is polygonal hole to hold cap aperture 191.When plug screw 13 is screwed into 1 all right one way or the other folding of pedicle screw
In disconnected long-armed 12, be threaded through recessing mark 18 only screw-internal thread fit with galianconism 122 when, 1 liang of disconnected arm 121 of pedicle screw can be fractureed
And remove, block 19 is screwed to the one end for being set in the corresponding recessing mark 18 of 1 two galianconism 122 of pedicle screw, block 19 is held tightly
Two galianconism 122 of pedicle screw 1 simultaneously compress plug screw 13, can effectively prevent plug screw 13 from loosening to exit, especially in pedicle of vertebral arch
In the case that screw 1 can slide along vertical connecting bar 2, block 19 can be played anti-loosening exits effect well.Preferably, block 19
Screw direction and screwing for plug screw 13 is in opposite direction, namely the screw thread rotation direction of block 19 and the screw thread rotation direction of plug screw 13
On the contrary, further the anti-loosening of plug screw 13 is exited.
Pedicle screw 1 can be arranged as required into unidirectional fixed pedicle screw 1, list when being connected with vertical connecting bar 2
To slip pedicle screw 1, universal fixed pedicle screw 1 and universal 1 four kinds of pedicle screw of slip.Wherein, it is unidirectional fixed
Pedicle screw 1 and the unidirectional pedicle screw 1 that slides are using fixing axle pedicle screw 1, the rivet nut of fixing axle pedicle screw 1
10 are fixedly connected with nail seat 11, and rivet nut 10 is solid or hollow, and hollow rivet nut 10 has seal wire through hole vertically.Due to rivet nut 10
It is fixedly connected with nail seat 11 so that rivet nut 10 can not move with respect to nail seat 11, therefore form unidirectional pedicle screw 1.It is unidirectional solid
Determine pedicle screw 1 and the unidirectional difference for sliding pedicle screw 1 is, as shown in Figure 8 and Figure 9, unidirectionally fix pedicle of vertebral arch screw
The plug screw 13 of nail 1 compresses vertical connecting bar 2, and as shown in Figure 10 and Figure 11, the unidirectional plug screw 13 for sliding pedicle screw 1 connects close to vertical
Rod 2 but vertical connecting bar 2 is not compressed, the unidirectional pedicle screw 1 and vertical connecting bar 2 of sliding can slide along the vertical arranged direction of connecting bar 2 is relative.
Universal fixed pedicle screw 1 and universal slip pedicle screw 1 use movable axis pedicle screw 1, activity
The nail seat 11 of axle pedicle screw 1 is hollow-core construction, is built-in with bulb 15 and bulb pressure pad 16, and rivet nut 10 is fixed with bulb 15 to be connected
Connect, bulb pressure pad 16 is pressed on bulb 15, and vertical connecting bar 2 is embedded in two broken long-armed 12 U-shaped structures 14 and directly born against
On bulb pressure pad 16, rivet nut 10 is solid or hollow, and hollow rivet nut 10 has seal wire through hole vertically, has polygon on bulb 15
Groove.When rivet nut 10 is hollow, bulb pressure pad 16 is also hollow structure.Universal fixed pedicle screw 1 and universal slip vertebral arch
The difference of root screw 1 is that as shown in Figure 12 and Figure 13, the plug screw 13 of universal fixed pedicle screw 1 compresses vertical connecting bar 2,
Vertical connecting bar 2, which compresses bulb 15, fixes rivet nut 10, as shown in Figure 14 and Figure 15, the universal plug screw 13 for sliding pedicle screw 1
Vertical connecting bar 2 is not compressed, vertical connecting bar 2 does not compress bulb 15 yet, and the convex pin 1323 of 13 liang of plug screw is pressed on the supporting of bulb pressure pad 16
On platform 120, bulb pressure pad 16 is compressed, bulb pressure pad 16 compresses bulb 15, and rivet nut 10 is fixed, the universal slip He of pedicle screw 1
Vertical connecting bar 2 can be slided along the vertical arranged direction of connecting bar 2 is relative.
In the present embodiment, as shown in Figure 4 and Figure 5, arc cushion block 132 includes cushion block body 1322 and interval is connected to cushion block
Two convex pin 1323 on body 1322, deep-slotted chip breaker 1321 is between two convex pin 1323.
The inner side of two galianconism 122 of pedicle screw 1 or bulb pressure pad 16 are provided with two supporting stations 120（Referring to Figure 24）,
Two supporting stations 120 are corresponding with the position of two convex pin 1323 respectively, and the length of two convex pin 1323 is configured to and two branch
Cushion cap 120 offsets so that arc cushion block 132 does not compress is stayed between vertical connecting bar 2, or two convex pin 1323 and two supporting stations 120
There is spacing so that arc cushion block compresses vertical connecting bar 2.Pressure can be achieved using the arc cushion block 132 with the convex pin 1323 of different length
Tightly or vertical connecting bar 2 is not compressed, both of which need to only tighten plug screw 13, the position without adjusting plug screw 13, big generous
Operation.
Further, cushion block body 1322 is provided with two and the U-shaped structure 14 of pedicle screw 1 coordinates prevention arc-shaped pad
The rotation stop convex shoulder 1324 that block 132 rotates, two rotation stop convex shoulders 1324 are symmetrical set, and rotation stop convex shoulder 1324 is matched somebody with somebody with U-shaped structure 14
Guide effect is closed, deep-slotted chip breaker 1321 is just directed at the outer surface for being fastened in vertical connecting bar 2.
Compared with the fixing axle pedicle nail that current open surgery uses, the smooth section of broken long-armed 12 tail end is to plug screw
13 play the guiding role, and are easy to be screwed into plug screw 13；Pedicle screw 1 has short cylindrical shape nail seat 11, and nail seat 11 exists to pedicle screw 1
Play direction controlling when putting the slip in nail pilot sleeve；Rivet nut 10 is solid or hollow, the solid more hollow effect of rivet nut 10
Power is strong, and hollow rivet nut 10 can be screwed into along seal wire, and it is high to put nail accuracy rate；Under preferable case, for the pedicle screw 1 that preferably fractures
Broken long-armed 12, the end close to nail seat 11 on two broken long-armed 12 of pedicle screw 1 is provided with recessing mark 18,
It is weaker at recessing mark 18, broken long-armed 12 can be fractureed here.The disconnected arm 121 of the two of pedicle screw 1 fractures and removed
Afterwards, block 19 can cover one end of 1 galianconism of pedicle screw, 122 corresponding recessing mark 18 and screw, and it is 1 liang short to hold pedicle screw tightly
Arm 122 simultaneously compresses plug screw 13, and anti-plug screw 13, which loosens, to be exited.Unidirectional fixed pedicle screw 1 and universal fixed pedicle screw 1
Plug screw 13 compresses vertical connecting bar 2, and for scoliosis top vertebra and its upper and lower adjacent convex side hold-down bars of vertebra, side-thrust is produced to concave side,
Go to rotate, beneficial to orthopedic, while top vertebra is pressurizeed in convex side and suppresses to grow.It is unidirectional to slide pedicle screw 1 and universal slip
The plug screw 13 of pedicle screw 1 is close to vertical connecting bar 2 but does not compress vertical connecting bar 2, and it can be slided along vertical connecting bar 2, for scoliosis
Upper and lower side vertebra and other centrum pedicles of vertebral arch in addition to vertebra is pushed up are fixed, and with growth, the pedicle screw 1 of fixed centrum can be along vertical
Connecting bar 2 is slided, and adjusts the free growth of scoliotic spine.
As shown in figure 16, the vertical connecting bar 2 followed closely in rod correction bracket includes barred body 20 and the connector positioned at the both ends of barred body 20
21.For barred body 20 in cylinder, connector 21 is polygon, protrudes the both ends of barred body 20.The size of connector 21 is less than barred body 20
Size.Barred body 20 can be embedded in the U-shaped structure 14 of pedicle screw 1, so as to form nail rod fixed structure.Vertical connecting bar 2 can root
Required length is cut into according to being actually needed, or bends to required radian, the vertical connecting bar 2 after being tailored must retain the company of one end
Joint 21, held for inserting in the horizontal shape hole of rod device.
Ejector apparatus main function is that scoliosis is corrected in art, each centrum is located on coronal-plane after correction
On one line, maintain to carry out wearing rod under correction state, if no ejector apparatus resets under general anesthesia to scoliosis, warp
Mini-incision, which carries out wearing rod, to be the devil.After each pedicle screw 1 of embedded with minimal invasion Design, fixed mount 1100 is fixed on
Operating table, the sleeve 1001 of first ejector 1000 is entangled in the two-arm for pushing up the convex side pedicle screw 1 of vertebra, sleeve 1001
Openend is contradicted and arrives bone face, then the adjusting rod 10023 of push-pull arm 1002 is embedded in the neck 11012 on homonymy installing frame side 11011
In, the 3rd adjusting nut 10024 and the 4th adjusting nut 10025 are located at the both sides of 11011 neck of installing frame side 11012 respectively,
Two adjusting nuts are tightened to neck 11012, temporarily fixed ejector 1000 is on the installing frame side 11011 of fixed mount 1100；
Same operating method is by 1001 sets of pedicles of vertebral arch for staying in upper and lower side vertebra concave side of sleeve of second and the 3rd ejector 1000
In the two-arm of screw 1, the adjusting rod 10023 of push-pull arm 1002 is embedded in the neck on the installing frame side 11011 of corresponding concave side
In 11012, temporarily fixed ejector 1000 is on the installing frame side 11011 of fixed mount 1100.Adjusting each direction of sleeve 1001 makes
U-shaped structure 14 between inverted U groove 10011 and the two-arm of pedicle screw 1 is completely relatively logical, adjusts the direction of push-pull arm 1002, makes
Adjusting rod 10023 is perpendicular to the vertebral sagittal, because each centrum has different degrees of rotation, as long as each adjusting rod 10023
Tighten universal joint perpendicular to the mistake shape face of corresponding centrum and fix connecting rod 10021 and adjusting rod 10023, make entirely to push away in direction
Apical organ 1000 is fixed, then rotates the nut of each adjusting rod 10023, ejector 1000 is promoted respective pedicle screw 1 to ridge
Post center line is drawn close, and regulation repeatedly makes centrum and convex side concave side pedicle of vertebral arch on straight line, also be corrected simultaneously on coronal-plane
Rotation deformity, beneficial to further wearing rod orthopedic fixation.Pedicle screw 1 is fixed on pedicle of vertebral arch, and active force is most strong, ejector
1000 sleeve 1001 entangle vertebral arch spiral shell screw 1 be beneficial to it is orthopedic, universal joint is conveniently adjusted the direction of adjusting rod 10023, regulation
Bar 10023 vertically corresponds to the direction of the sagittal plane of centrum, and tightening universal joint makes ejector 1000 be fixed on an entirety, is beneficial to
Regulation ejection corpus vertebrae replacement is orthopedic, and adjusting rod 10023 is caught in the neck 11012 on installing frame side 11011, is revolved by adjusting nut
Turn to promote pedicle screw 1 to draw close to midspinal line, resetting orthopedic power is powerful, rectifys beneficial to the poor lateral bending of pliability
Shape.
With idiopathic chest waist lateral bending（Push up vertebra chest12, upper end vertebra chest9, lower end vertebra waist3）Exemplified by, as shown in figure 21, A lines in figure
It is signified for chest12Pedicle of vertebral arch, B lines it is signified for chest9Pedicle of vertebral arch, C lines it is signified for waist3Pedicle of vertebral arch, D lines it is signified for chest11Vertebra
Nut, E lines it is signified for waist1Pedicle of vertebral arch.Putting nail situation is：Chest12Bilateral, chest11Convex side, waist1Unidirectional fixed vertebra is put respectively in convex side
Pedicle screw 1, chest9Bilateral, waist3Bilateral puts unidirectional slip pedicle screw 1 respectively.When all with unidirectional nail wear rod it is difficult when,
Universal fixed pedicle screw 1 and universal slip pedicle screw 1 are respectively that unidirectional fixed pedicle screw 1 slides vertebra with unidirectional
Pedicle screw 1 it is alternative.
After the completion of pedicle screw 1 is inserted, chest is entangled respectively with three ejectors 100012Convex side, chest9Concave side, waist3It is recessed
The pedicle screw 1 of side, other mini-incision skin soft tissues of pedicle screw 1 are retracted with incision tissue's retractor, appear vertebra
Two broken long-armed 12 of pedicle screw 1 and U-shaped structure 14.Chest12The push-pull arm 1002 of the ejector 1000 of convex side is arranged on
Fixed mount 1100 is located on the installing frame side 11011 of the convex side of backbone, chest9Concave side and waist3The push-pull arm of the ejector 1000 of concave side
1002 are located on the installing frame side 11011 of backbone concave side installed in fixed mount 1100, adjust the push-pull arm of each ejector 1000
1002 line of forces, locking can lock universal joint.Rotation adjusts the 3rd adjusting nut 10024 and the 4th regulation of each ejector 1000
Nut 10025, the sleeve 1001 of each ejector 1000 is set to be drawn close to midspinal line, correction backbone side deformity makes during each centrum is located at
On line.In other cases, how curved backbone can be corrected using multiple ejectors 1000.
After completing ejection correction using ejector apparatus, vertical connecting bar 2 is inserted, then be screwed into plug screw 13 and block 19.Wherein, chest12
Bilateral, chest11Convex side, waist1In the fixation pedicle screw 1 of convex side, plug screw 13 and block 19 are tightened the vertical connecting bar 2 of compression；
Chest9, waist3In the pedicle screw 1 of bilateral, plug screw 13 does not compress vertical connecting bar 2, and unidirectional slip pedicle screw 1 can be along vertical connecting bar 2
Slide.Follow closely rod correction bracket by the schematic diagram after Rachiocampis correction as shown in Figure 22 and Figure 23.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment.To those of ordinary skill in the art, the gained under the premise of the utility model technical concept is not departed from
To modifications and variations also should be regarded as the scope of protection of the utility model.
Claims (7)
- A kind of 1. ejector apparatus for being used to insert scoliosis nail rod correction bracket, it is characterised in that：Including ejector and fixation Frame, the ejector include push-pull arm and the sleeve being connected on push-pull arm, and the sleeve, which is provided with, to be used to be sheathed on nail rod correction Socket through hole outside the pedicle screw of support, the push-pull arm include middle connecting seat, connecting rod and adjusting rod, connecting rod It is connected respectively by the way that universal joint and middle connecting seat can be locked with adjusting rod, in connecting rod, adjusting rod passes through sleeve connection The force adjustment component of adjustable push-pull effort is connected on fixed mount.
- 2. ejector apparatus according to claim 1, it is characterised in that：The one end open of the socket through hole, which is provided with, to be used to block The groove of falling U being placed in vertical connecting bar, the width for the groove of falling U are more than or equal to the diameter of the vertical connecting bar of nail rod correction bracket.
- 3. ejector apparatus according to claim 1, it is characterised in that：The fixed mount includes framework and for installing fixation The mounting assembly of framework, framework have two to four installing frame sides for being used to fix ejector, and each installing frame side is provided with some For being caught in the neck of adjusting rod, some necks are along installing frame side arranged for interval；The adjusting part includes the 3rd adjusting nut With the 4th adjusting nut, adjusting rod is screw rod, and adjusting rod is arranged in neck, the 3rd adjusting nut and the 4th adjusting nut screw thread It is with the installation of on adjusting rod, and the 3rd adjusting nut and the 4th adjusting nut are divided into the both sides on installing frame side.
- 4. ejector apparatus according to claim 3, it is characterised in that：The mounting assembly includes at least two supports and fixed Mechanism, it is each to support fixed mechanism to include pole and the U-shaped folder block for being fastened on operating table, one end of the pole and framework Connection, the other end are connected with U-shaped folder block, and screw thread is connected with by screwing the lock for pushing against or unclamping operating table on U-shaped folder block Tight screw.
- 5. ejector apparatus according to claim 3, it is characterised in that：Between 3rd adjusting nut and installing frame side with And the 4th be equipped with pad between adjusting nut and installing frame side.
- 6. according to the ejector apparatus described in any one of claim 1 to 5, it is characterised in that：Universal joint can be locked including spherical Head and lock nut, lock nut are connected on middle connecting seat, spherical cavity are provided between lock nut and middle connecting seat, ballhead is installed in ball Shape intracavitary, lock nut and the threaded connection of middle connecting seat simultaneously can compress by screwing or unclamp ballhead, connecting rod or adjusting rod and Ballhead is affixed.
- 7. according to the ejector apparatus described in any one of claim 1 to 5, it is characterised in that：The axis and connecting rod of the sleeve Axis it is misaligned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621434361.8U CN206910388U (en) | 2016-12-26 | 2016-12-26 | For inserting the ejector apparatus of scoliosis nail rod correction bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621434361.8U CN206910388U (en) | 2016-12-26 | 2016-12-26 | For inserting the ejector apparatus of scoliosis nail rod correction bracket |
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| Publication Number | Publication Date |
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| CN206910388U true CN206910388U (en) | 2018-01-23 |
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| CN201621434361.8U Active CN206910388U (en) | 2016-12-26 | 2016-12-26 | For inserting the ejector apparatus of scoliosis nail rod correction bracket |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110338897A (en) * | 2018-04-03 | 2019-10-18 | 李益香 | A kind of adjustable bending plate of orthopedic spinal lateral bending operation |
-
2016
- 2016-12-26 CN CN201621434361.8U patent/CN206910388U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110338897A (en) * | 2018-04-03 | 2019-10-18 | 李益香 | A kind of adjustable bending plate of orthopedic spinal lateral bending operation |
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