CN208942333U - A kind of internal automatically-controlled elastic struts spinal growth bar system - Google Patents
A kind of internal automatically-controlled elastic struts spinal growth bar system Download PDFInfo
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- CN208942333U CN208942333U CN201820776101.1U CN201820776101U CN208942333U CN 208942333 U CN208942333 U CN 208942333U CN 201820776101 U CN201820776101 U CN 201820776101U CN 208942333 U CN208942333 U CN 208942333U
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- spinal growth
- orthopedic rod
- growth bar
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Abstract
The utility model discloses a kind of internal automatically-controlled elastics to strut spinal growth bar system, including pogo barrel, Orthopedic rod, lock nut and spring；The pogo barrel includes solid fixed part and hollow pipe sleeve portion, and the Orthopedic rod is inserted into the pipe sleeve portion of the pogo barrel；The spring is set in the pipe sleeve portion for being placed in the pogo barrel on the Orthopedic rod；Screw thread is provided on the Orthopedic rod, the lock nut is threadedly coupled with the Orthopedic rod.The internal automatically-controlled elastic of the utility model, which struts spinal growth bar system not only, can prevent the exacerbation of scoliosis, and it can increase with the development of infant backbone, lasting play struts effect, it can also accomplish to monitor in real time, once it was found that there is no optical forces to replace immediately for growing rod, to realize the drawbacks of the continuing reliable optical force, reducing Repeated Operation of automatically prolonging while providing that growing rod is developed with spinal growth.
Description
Technical field
The utility model relates to the field of medical instrument technology, and in particular to a kind of internal automatically-controlled elastic struts spinal growth stick
System.
Background technique
The backbone of normal person from seeing it is straight line below, and trunk two sides are symmetrical.If had in terms of front double
Shoulder is not contour or sees there is back or so injustice below, should just suspect " scoliosis ".It is a kind of three-dimensional deformity of backbone, packet
Include the sequence variation in Coronal, sagittal plain and axle position.Slight scoliosis is usually not apparent uncomfortable, also sees in appearance
Less than apparent body deformity.Heavier scoliosis then will affect infant and teen-age growth and development, make body deformation,
Serious person can influence cardio-pulmonary function, even involve spinal cord, cause to paralyse.
Scoliosis can be caused by different reasons, the most common are idiopathic scoliosis, account for sum 75%~
85%, pathogenic factor is unclear.In addition there are congenital, be due to backbone embryonic stage occur the merogenesis of vertebra not exclusively,
There are bone bridge or a pleurocentrum ateliosis in side or are mixed with above two factor, causes the growth of backbone two sides not right
Claim, so as to cause scoliosis.Neuromuscular, be due to nerve or muscle in terms of disease lead to muscular imbalance, especially
It is that the left-right asymmetry caused side of flesh is convex by backbone.Other are such as: neurofibromatosis merges scoliosis, caused by interstitial lesion
Scoliosis, scoliosis caused by metabolic, trophism or endocrine reason etc..
Scoliosis is treated generally according to the consideration of the combined factors such as the size of lateral bending, patient age, tempo, can
To take non-operative treatment such as physical therapy, motorpathy, gypsum, brace etc..If patient's lateral bending is larger, tempo comparatively fast needs
The purpose of operative treatment, surgery of scoliosis, is: preventing lopsided progress；Restore spine balance；Correction deformity as far as possible；It is more as far as possible
Preservation spinal movable segment；Prevent nervous lesion.
For the Adolescent Idiopathic Scoliosis Patients patient that cardiopulmonary are reached maturity, by all pedicle screws technology in segment
The three-dimensional various backbone correcting methods of orthopaedy integrated application, as concave side strut convex side compression technology, transfer rod technology, panning techniques,
Full pedicle screws fixation in cantilever beam technology, scoliosis segment directly goes rotation technique etc. and can obtain good orthopedic rate,
While internally the region of fixation implant carries out bone grafting to enhance the stability after interior fixation, to obtain reliably, persistently
Orthopedic effect.
But for the scoliosis (Early onset scoliosis) that age < 10 year old child occurs, spinal surgery is controlled
Treatment is faced with always a great problem, because the child in this period is in the peak period of growth and development, scoliosis undoubtedly can
The development of the important organs such as bone and cardiopulmonary to infant causes serious negative effect, and correlative study is also shown that in recent years
(increased after baby due to first peak period for before 5 years old, being backbone longitudinal growth development with the velocity-stabilization of about 2cm every year
It is long).During this period, if the deformity of spine continuing advances of infant, eventually oppress thoracic organ, reduce Thorax volume, thus
Pulmonary parenchyma is oppressed, Pulmonary volume is reduced.If infant cannot treat in time or malpractice, serious body can be generated to child
Body deformity and cardiopulmonary development are limited, influence the quality of life of infant, or even can cause cardiorespiratory failure or even death.But it passes
The orthopedic fusion technology of system certainly will will lead to the spinal growth function forfeiture for being in growth and development peak time again, to cause
Trunk shortens and cardio-pulmonary function development is limited.Therefore should using interior fixation implant correction deformity of spine, stablize backbone and as far as possible
Row spinal fusion is avoided, is the method that spinal surgeons always search for keep the normal growth of backbone.
Therefore people have invented various backbone non-fusion technologies, specifically include that the growth that spinal growth can be followed to slide
Stick technology, such product is more, but confirms that effect is uncertain in clinical application, can longitudinally strut type artificial-titanium rib technology
(Vertical Expandable Prosthetic Titanium Rib, VEPTR), is authenticated and is commercialized by FDA,
But idicatio is narrow and complication is more, limits its clinical application, and there are also magnetic control growing rod technology (magnetically
Controlled growing rod MCGR) FDA certification and the marketization are had also passed through, but it influences postoperative nuclear-magnetism assessment, holds
Easily there is the failure of instrument correlation and generation metal fragment etc. and cause very big dispute at present, more generally acknowledges effectively at present also
It is the Harrington doctor based on the U.S. in introduction in 1962, and the tradition then made improvements by Moe doctor
Growing rod technology, but this growing rod technology needs periodically to extend operation to infant row every 6-9 months to maintain and ridge
The synchronous growth of column obtains orthopedic and stablizes, operation repeatedly, and to the physiology of infant, psychology, there are also the economy of family to make
At huge burden, furthermore repeated multiple times operation can promote the spontaneous fusion of Via Posterior Spinal Approach and the spontaneous fusion of costovertebral joint,
The stiffness index of scoliosis is increased, most of case can not continue to strut after 1 year.Other complication are pulled out such as infection, hook end
Out, the incidence of kyphosis deformity of fixed upper end intersection etc. is also higher.
Therefore, it is reliable orthopedic how to realize that growing rod continues with automatically prolonging of developing of spinal growth while providing
Power, reducing operation number is current those skilled in the art's urgent problem.
Summary of the invention
The purpose of this utility model is to provide automatically-controlled elastics in a kind of children's scoliosis body to strut spinal growth stick system
System can not only prevent the exacerbation of scoliosis, but also can increase with the development of infant backbone, and lasting play struts effect
It answers, until growth and development terminates.
To achieve the above object, the utility model takes following technical scheme: including pogo barrel, Orthopedic rod, locking spiral shell
Female and spring；The pogo barrel includes solid fixed part and hollow pipe sleeve portion, and the Orthopedic rod is inserted into the spring pocket
In the pipe sleeve portion of pipe；The spring is set in the pipe sleeve portion for being placed in the pogo barrel on the Orthopedic rod；It is described orthopedic
Screw thread is provided on stick, the lock nut is threadedly coupled with the Orthopedic rod.
The drift of the spring is greater than the length in pogo barrel pipe sleeve portion.
The length of the Orthopedic rod is greater than the sum of spring free length and lock nut thickness.
The lock nut is hex nut, and the diagonal size of the hex nut is less than or equal to the ruler of pipe sleeve portion internal diameter
It is very little.
The length of the pogo barrel is 5-20cm；The length of the Orthopedic rod is prefabricated uniform length 50cm, in art according to
It can freely be cut out according to patient's torso length, summation is greater than the sum of spring free length and lock nut thickness, diameter 3.5-
5.5mm；The drift of the spring is 10-30cm；The length of the lock nut is 4-19cm, screw thread on the Orthopedic rod
Length is 9-40cm.
Automatically-controlled elastic struts pogo barrel, Orthopedic rod, spring and the locking of spinal growth bar system in the utility model body
The size of nut is provided to the development of children's spinal growth continues reliable optical force, greatly prolongs the service life, reduces
Operation number.
Pressure sensor is additionally provided between the pogo barrel and spring, and (pressure sensor is TheIntraoperative Rod Strain Sensor, bar strain transducer in art), the pressure of spring can
To be transferred to the end PC by pressure sensor, the elastic force of spinal growth bar system inner spring is monitored in real time, when the elastic force of spring is aobvious
When showing that pressure reduces or is zero, prompts it to strut effect and weaken or disappear, it is contemplated that tightening nut of performing the operation again is to spring preload
Load avoids unnecessary operation.
It further includes torsiometer that the internal automatically-controlled elastic, which struts spinal growth bar system,, can during screwing spring
The load on specific spring is shown with the reading according to torsiometer, to apply suitable distracting force.
The pogo barrel, Orthopedic rod, lock nut and spring are all made of titanium alloy material and are made.
Beneficial effect
1, the internal automatically-controlled elastic of the utility model struts spinal growth bar system screw thread and locking is arranged on Orthopedic rod
Nut, screwing lock nut makes spring-compressed generate elastic force, and Orthopedic rod and casing is made to form certain distracting force to realize ridge
Column is orthopedic, and the utility model structure is simple, and easy to use and manufacturing cost is low, greatly reduces operation number.
2, the internal automatically-controlled elastic of the utility model struts spinal growth bar system and spring is arranged in casing, due to set
The protection of pipe avoids soft tissue and grows into the decline of elastic force caused by spring, to guarantee that strength is applied to backbone sclerotin.
3, the internal automatically-controlled elastic of the utility model, which struts spinal growth bar system not only, can prevent adding for scoliosis
Weight, and can increase with the development of infant backbone, lasting play struts effect, can also accomplish to monitor in real time, once hair
There is no optical forces to replace immediately for existing growing rod, to realize that growing rod automatically prolonging while providing with what spinal growth was developed
The drawbacks of continuing reliable optical force, reducing Repeated Operation.
Detailed description of the invention
The internal automatically-controlled elastic of Fig. 1 the utility model struts spinal growth bar system schematic diagram；
The internal automatically-controlled elastic of Fig. 2 the utility model struts spinal growth bar system sectional view along A-A；
The internal automatically-controlled elastic of Fig. 3 the utility model struts spinal growth bar system pressure sensor position schematic diagram；
Appended drawing reference is as follows in figure:
Pogo barrel 1, Orthopedic rod 2, lock nut 3, spring 4, pressure sensor 5, fixed part 11, pipe sleeve portion 12, screw thread
21。
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.If not referring in particular to
Conventional means bright, that technological means used in embodiment is well known to those skilled in the art.With reference to the accompanying drawing and implement
The utility model is described in detail in example.
As Figure 1-Figure 2, the internal automatically-controlled elastic of the utility model struts spinal growth bar system, including pogo barrel
1, Orthopedic rod 2, lock nut 3 and spring 4；The pogo barrel 1 includes solid fixed part 11 and hollow pipe sleeve portion 12, institute
Orthopedic rod 2 is stated to be inserted into the pipe sleeve portion 12 of the pogo barrel 1；The spring 4 be set on the Orthopedic rod 2 be placed in it is described
In the pipe sleeve portion 12 of pogo barrel 1；Screw thread 21, the lock nut 3 and 2 spiral shell of Orthopedic rod are provided on the Orthopedic rod 2
Line connection.
The drift of the spring 4 is greater than the length in 1 pipe sleeve portion 12 of pogo barrel.
The length of the Orthopedic rod 2 is greater than the sum of 4 drift of spring and 3 thickness of lock nut.
The lock nut 3 is hex nut, and the diagonal size of the hex nut is less than or equal to the interior of pipe sleeve portion 12
Diameter size.
The internal automatically-controlled elastic of the utility model, which struts spinal growth bar system, to match with existing pedicle screw, nut
It closes and uses, be used for children's scoliosis orthomorhia.
In above-described embodiment, the length of the pogo barrel 1 is 5-20cm；The prefabricated unified length of the length of the Orthopedic rod 2
50cm is spent, can freely be cut out in art according to patient's torso length, length summation is greater than spring free length and lock nut is thick
The sum of degree, the Orthopedic rod diameter are 3.5-5.5mm；The drift of the spring 3 is 10-30cm；The lock nut 4
Length is 4-19cm, and 21 length of screw thread is 9-40cm on the Orthopedic rod 2, avoids the screw thread 21 is too long from rubbing with spring 4
Generate metal fillings.
In one embodiment, (the pressure sensing of pressure sensor 5 is additionally provided between the pogo barrel 1 and spring 4
Device is TheIntraoperative Rod Strain Sensor, bar strain transducer in art), such as Fig. 3
Shown, the elastic force that compressed spring 4 generates can be transferred to the end PC by pressure sensor, monitor spinal growth stick system in real time
The elastic force of system inner spring prompts it to strut effect and weakens or disappear, can examine when the elastic force of spring shows that pressure reduces or is zero
Considering operation, tightening nut gives spring preload load again, avoids unnecessary operation.
In one embodiment, it further includes that torsiometer (can for market that the internal automatically-controlled elastic, which struts spinal growth bar system,
Sell), during screwing spring, the load on specific spring can be shown according to the reading of torsiometer, to apply conjunction
Suitable distracting force.
In above-described embodiment, pogo barrel 1, Orthopedic rod 2, lock nut 3 and spring 4 are all made of titanium alloy material and are made.
The utility model is used for children's scoliosis orthomorhia, and specifically used method is as follows:
In operation, after the merging that suitable spinal segments carry out pedicle screw, the pogo barrel 1 of appropriate length is selected
And Orthopedic rod 2, then spring 4 and pressure sensor 5 are packed into pogo barrel 1 and lock nut 3 is preset in Orthopedic rod 2
On；Orthopedic rod 2 is inserted into pogo barrel 1, suitably by after the 12 part moulding of the cannula portion of Orthopedic rod 2, by Orthopedic rod 2 far from bullet
One end of spring casing 1 and the solid fixed part 11 of pogo barrel 1 are mounted on pedicle screw；Screwing lock nut 3 makes bullet
Spring 4 suitably preloads, and spring 4 is compressed to suitable position, and the elastic force generated using spring 4 by compression makes Orthopedic rod 2 and spring pocket
Certain distracting force is generated between pipe 1, so that curved backbone is corrected and (torsiometer metering spring compression degree is can be used), in youngster
The elastic force of spring preload is constantly discharged with the growth of backbone in scholar without a xiucai degree's growth process.
The internal automatically-controlled elastic of the utility model, which struts spinal growth bar system not only, can prevent the exacerbation of scoliosis,
And can increase with the development of infant backbone, lasting play struts effect.
Although above having made detailed description to the utility model with a general description of the specific embodiments,
But on the basis of the utility model, it can be made some modifications or improvements, this is aobvious and easy to those skilled in the art
See.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model
Claimed range.
Claims (10)
1. a kind of internal automatically-controlled elastic struts spinal growth bar system, which is characterized in that including pogo barrel, Orthopedic rod, locking
Nut and spring；The pogo barrel includes solid fixed part and hollow pipe sleeve portion, and the Orthopedic rod is inserted into the spring
In the pipe sleeve portion of casing；The spring is set in the pipe sleeve portion for being placed in the pogo barrel on the Orthopedic rod；It is described to rectify
Screw thread is provided on shape stick, the lock nut is threadedly coupled with the Orthopedic rod.
2. spinal growth bar system as described in claim 1, which is characterized in that the drift of the spring is greater than spring pocket
The length in pipe pipe sleeve portion.
3. spinal growth bar system as described in claim 1, which is characterized in that it is free that the length of the Orthopedic rod is greater than spring
The sum of length and lock nut thickness.
4. spinal growth bar system as described in claim 1, which is characterized in that the lock nut is hex nut, described
The diagonal size of hex nut is less than or equal to the size of pipe sleeve portion internal diameter.
5. spinal growth bar system as described in claim 1, which is characterized in that the length of the pogo barrel is 5-20cm；
The drift of the spring is 10-30cm；The lock nut with a thickness of 4-19cm.
6. spinal growth bar system as described in claim 1, which is characterized in that reach is 9- on the Orthopedic rod
40cm。
7. spinal growth bar system as described in claim 1, which is characterized in that also set up between the pogo barrel and spring
There is pressure sensor.
8. the spinal growth bar system as described in claim 1-7 any one, which is characterized in that the spinal growth bar system
It further include torsiometer.
9. the spinal growth bar system as described in claim 1-7 any one, which is characterized in that the Orthopedic rod, spring pocket
Pipe, lock nut and spring are all made of titanium alloy material and are made.
10. spinal growth bar system as claimed in claim 8, which is characterized in that the Orthopedic rod, pogo barrel, locking spiral shell
Female and spring is all made of titanium alloy material and is made.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820776101.1U CN208942333U (en) | 2018-05-23 | 2018-05-23 | A kind of internal automatically-controlled elastic struts spinal growth bar system |
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| CN201820776101.1U CN208942333U (en) | 2018-05-23 | 2018-05-23 | A kind of internal automatically-controlled elastic struts spinal growth bar system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635032A (en) * | 2018-05-23 | 2018-10-12 | 中国医学科学院北京协和医院 | A kind of internal automatically-controlled elastic struts spinal growth bar system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635032A (en) * | 2018-05-23 | 2018-10-12 | 中国医学科学院北京协和医院 | A kind of internal automatically-controlled elastic struts spinal growth bar system |
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