CN208958295U - A kind of growing rod applied to backbone correcting - Google Patents
A kind of growing rod applied to backbone correcting Download PDFInfo
- Publication number
- CN208958295U CN208958295U CN201821100486.6U CN201821100486U CN208958295U CN 208958295 U CN208958295 U CN 208958295U CN 201821100486 U CN201821100486 U CN 201821100486U CN 208958295 U CN208958295 U CN 208958295U
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- rod piece
- internal thread
- thread segment
- pressure cuffs
- backbone correcting
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Abstract
The utility model relates to a kind of growing rod applied to backbone correcting comprising the first rod piece, the second rod piece and carry out linearly connected to the two and strut pressure cuffs.It is respectively arranged with the first internal thread segment, the second internal thread segment in the inner cavity for strutting pressure cuffs both ends, and the two is oppositely oriented.The one end of first rod piece is provided with external thread section compatible with the first internal thread segment, the one end of the second rod piece is provided with external thread section compatible with the second internal thread segment.In the outer wall for strutting pressure cuffs, medium position is provided with torsional part, when being twisted by it, the first rod piece is relative to the second rod piece simultaneously to mutually or to dorsal displacement.So, the convenience of operation is improved, struts operation in addition, can be realized by the positive and negative screw thread of turn, this structure applies to backbone correcting growth field and still belongs to the first.Operator can be calculated by the circle number of rotation torsional part and strut distance, be easy to implement accurate control, and it is steady to strut process.
Description
Technical field
The utility model relates to orthopedic medical device technical field of tools more particularly to a kind of lifes applied to backbone correcting
Long stick.
Background technique
Growing rod is generally used when carrying out Rachiocampis correction operation to prevent the exacerbation of spinal curvature, promotes trunk
Longitudinal growth.Currently, for it is existing treatment scoliosis operation, especially teenager and children backbone carry out it is orthopedic and
When interior fixation, fusion, internal fixation device to be used is needed to maintain the effect of surgical orthopaedic, increases spinal bone fusion rate.
But because teenager and children not yet grow full maturity in backbone, growing rod need to periodically be strutted.At present to intraspinal solid
Determine the extended method of stick, often loosens the connector of growing rod (such as domino connector), while using the devices such as distraction forcep
Tool passively struts two internal fixation bars.This method that struts needs other auxiliary instruments, and struts dynamics and rely on operator completely
Member's feel, process is uncontrollable, increases operation risk.Thus, it would be highly desirable to technical staff solves the above problems.
Utility model content
Problem to be solved in the utility model be to provide a kind of structure it is simple, convenient for the growing rod of manipulation, pass through its energy
The size for the amount of strutting is accurately controlled, operation precisely operation is realized, to lower operation risk.
In order to solve the above-mentioned technical problem, the utility model relates to a kind of growing rod applied to backbone correcting, packets
It includes the first rod piece, the second rod piece and pressure cuffs is strutted to the two progress linearly connected.It is strutting in pressure cuffs both ends
Chamber is respectively arranged with the first internal thread segment, the second internal thread segment, and the two is oppositely oriented.It is arranged in the one end of the first rod piece
There is external thread section compatible with the first internal thread segment, is provided in the one end of the second rod piece and is adapted with the second internal thread segment
External thread section.In the outer wall for strutting pressure cuffs, medium position is provided with torsional part, when being twisted by it, the
One rod piece is relative to the second rod piece simultaneously to mutually or to dorsal displacement.
Growing rod by adopting the above technical scheme improves operation in the course of surgery without auxiliary instruments such as distraction forceps
Convenience, strut operation in addition, can be realized by the positive and negative screw thread of turn, this structure apply to backbone correcting growth field
Still belong to the first.Operator can be calculated by the circle number of rotation torsional part and strut distance, be easy to implement accurate control, and support
Open procedure is steady, to reduce operation risk.
As the further improvement of above-mentioned utility model, observation window is provided on the outer wall for strut pressure cuffs.Observation window
For strip through-hole, and it is parallel to the axis setting for strutting pressure cuffs.
By using above-mentioned set-up mode, so that operator can be visually observed that each rod piece (i.e. the first bar
Part and the second rod piece) relative shift.
As the further improvement of above-mentioned utility model, it is arranged along the axis direction for strutting pressure cuffs, and close to observation window
There is graduation mark, for showing the relative shift of the first rod piece and the second rod piece.
By using above-mentioned set-up mode, operator in the course of surgery can in real time, directly read and strut displacement,
Reduce the probability that human error occurs.
As the further improvement of above-mentioned utility model, torsional part includes multiple circumferentially uniformly distributed milling flats.
As the further improvement of above-mentioned utility model, the quantity of milling flat is six.
By using above-mentioned set-up mode, turn is carried out to torsional part by spanner etc. convenient for operator, so that force
Process is more controllable, reliable.
As the further improvement of above-mentioned utility model, offered on the external thread section of the first rod piece and the second rod piece
Annular recess, for inlaying rubber ring；The thickness of rubber ring and the depth of annular recess are consistent.
By using above-mentioned set-up mode, the play in the first rod piece of turn or the second rod piece can be effectively reduced
Amount, and then both improve and the stability that struts pressure cuffs and connect.
As the further improvement of above-mentioned utility model, the lead of screw thread of the first internal thread segment and the second internal thread segment does not surpass
Cross 3mm.
By using above-mentioned set-up mode, the displacement of single-revolution turn torsional part is reduced as much as possible, improves surgical procedure
Accuracy.
As the further improvement of above-mentioned utility model, the screw thread of the first internal thread segment and the second internal thread segment is self-locking
Screw thread.
By using above-mentioned set-up mode, postoperative patient can be effectively avoided because of caused by movement or other factors
One rod piece or the second rod piece occur to change from being displaced so as to cause the amount of strutting, and then influence hand relative to pressure cuffs are strutted
Art effect.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the perspective view for the growing rod that the utility model is applied to backbone correcting.
Fig. 2 is the cross-sectional view for the growing rod that the utility model is applied to backbone correcting.
Fig. 3 is that the utility model is applied to strut the perspective view of pressure cuffs in the growing rod of backbone correcting.
Fig. 4 is that the utility model is applied to strut the cross-sectional view of pressure cuffs in the growing rod of backbone correcting.
Fig. 5 is the cross-sectional view that the utility model is applied to the first rod piece in the growing rod of backbone correcting.
Fig. 6 is the cross-sectional view that the utility model is applied to the second rod piece in the growing rod of backbone correcting.
The first rod piece of 1-；The second rod piece of 2-；3- struts pressure cuffs；The first internal thread segment of 31-；The second internal thread segment of 32-；
33- escape；34- torsional part；35- observation window；4- rubber ring.
Specific embodiment
Combined with specific embodiments below, the content of the utility model is described in further detail.Fig. 1, Fig. 2 show respectively
Perspective view and cross-sectional view of the utility model applied to the growing rod of backbone correcting are gone out comprising strut pressure cuffs 3, and at this
The both ends for strutting pressure cuffs 3 are connected through a screw thread the first rod piece 1 and the second rod piece 2 respectively.Fig. 3, Fig. 4 respectively illustrate this reality
The perspective view and cross-sectional view for strutting pressure cuffs in the growing rod of backbone correcting with new application are strutting pressure cuffs close to above-mentioned
The outer wall at 3 middle parts is provided with torsional part 34, and it is by there is 6 circumferentially uniformly distributed milling flats to constitute, consequently facilitating by spanner etc.
It is twisted.Certainly, the number of above-mentioned milling flat can also be set as 4 or 8 etc. according to the actual situation.For the ease of
It distinguishes, first internal thread segment 31 that is named as strutting 3 left end of pressure cuffs will be set to, right end is named as the second internal screw thread
Section 32, and the two is oppositely oriented.Be provided with external thread section in the end of the first rod piece 1, the second rod piece 2, respectively with it is above-mentioned
First internal thread segment 31, the second internal thread segment 32 are adapted.So, in the course of surgery without assistors such as distraction forceps
Tool improves the convenience of operation, in addition, operator passes through during strutting operation by positive and negative screw thread to realize
The circle number of rotation torsional part 34, which can calculate, struts distance, accurate control is easy to implement, and it is steady to strut process, to reduce
Operation risk.
Personnel are more visually observed that the opposite of each rod piece (i.e. the first rod piece 1 and the second rod piece 2) for ease of operation
Displacement can also be provided with observation window 35 as advanced optimizing for above-mentioned growing rod on the outer wall for strutting pressure cuffs 3,
And its specific set-up mode is as follows: through-hole in long strip, is parallel to the axis setting for strutting pressure cuffs 3.In addition, in order to can be straight
The relative shift for reading the first rod piece 1 and the second rod piece 2 is connect, the probability that human error occurs is reduced, it can be in above-mentioned observation
The side of window 35 is provided with length scale line.
Furthermore annular recess can also be offered on the external thread section of the first rod piece 1 and the second rod piece 2, for inlaying
Embedding rubber ring 4 (as shown in Figure 5, Figure 6), so as to the play being effectively reduced in the first rod piece of turn 1 or the second rod piece 2
Amount, and then both improve and the stability that struts pressure cuffs 3 and connect.In order to realize preferable technical effect, the thickness of rubber ring 4
It is set as consistent with the depth of annular recess, and selection is higher by intensity, the preferable rubber of ductility is made.Above-mentioned rubber ring
4 can be set as according to the actual situation multiple, be preferably parallel to each other arrangement.
Furthermore in order to improve operation accuracy, above-mentioned first internal thread segment 31 and the second internal screw thread need to be reduced as much as possible
The lead of screw thread of section 32 reduces the displacement of single-revolution turn torsional part, so that displacement process is more smooth.Above-mentioned lead of screw thread
Typically not greater than 3mm is advisable.
Finally, the screw thread of the first internal thread segment 31 and the second internal thread segment 32 may be configured as self-locking thread, and preferred square
Shape screw thread, in this way, which postoperative patient can be effectively avoided because of the first rod piece 1 or the second caused by movement or other factors
Rod piece 2 occurs to change from being displaced so as to cause the amount of strutting, and then influence surgical effect relative to pressure cuffs 3 are strutted.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (8)
1. a kind of growing rod applied to backbone correcting comprising the first rod piece, the second rod piece and linearly connected to the two
What is connect struts pressure cuffs, which is characterized in that the inner cavity for strutting pressure cuffs both ends be respectively arranged with the first internal thread segment,
Second internal thread segment；The thread rotary orientation of first internal thread segment and second internal thread segment is opposite；In first rod piece
One end be provided with external thread section compatible with first internal thread segment, be provided in the one end of second rod piece
External thread section compatible with second internal thread segment；In the outer wall for strutting pressure cuffs, it is provided with close to medium position
Torsional part, when being twisted by it, first rod piece is relative to second rod piece simultaneously to mutually or to dorsal displacement.
2. the growing rod according to claim 1 applied to backbone correcting, which is characterized in that in the pressure cuffs that strut
Observation window is provided on outer wall；The observation window is strip through-hole, and it is parallel to the axis setting for strutting pressure cuffs.
3. the growing rod according to claim 2 applied to backbone correcting, which is characterized in that along the pressure cuffs that strut
Axis direction, and the observation window is provided with graduation mark, for showing the phase of first rod piece and second rod piece
To displacement.
4. the growing rod according to claim 1 applied to backbone correcting, which is characterized in that the torsional part includes more
A circumferentially uniformly distributed milling flat.
5. the growing rod according to claim 4 applied to backbone correcting, which is characterized in that the quantity of the milling flat is
Six.
6. the growing rod according to claim 1 applied to backbone correcting, which is characterized in that in first rod piece and institute
It states and offers annular recess on the external thread section of the second rod piece, for inlaying rubber ring；The thickness of the rubber ring with it is described
The depth of annular recess is consistent.
7. the growing rod according to claim 1 applied to backbone correcting, which is characterized in that first internal thread segment with
The lead of screw thread of second internal thread segment is no more than 3mm.
8. the growing rod according to claim 1 applied to backbone correcting, which is characterized in that first internal thread segment and
The screw thread of second internal thread segment is self-locking thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821100486.6U CN208958295U (en) | 2018-07-11 | 2018-07-11 | A kind of growing rod applied to backbone correcting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821100486.6U CN208958295U (en) | 2018-07-11 | 2018-07-11 | A kind of growing rod applied to backbone correcting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208958295U true CN208958295U (en) | 2019-06-11 |
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ID=66748587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821100486.6U Active CN208958295U (en) | 2018-07-11 | 2018-07-11 | A kind of growing rod applied to backbone correcting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117122400A (en) * | 2023-10-25 | 2023-11-28 | 中国医学科学院北京协和医院 | In vivo self-torsion growth friendly spinal column orthopedic system |
-
2018
- 2018-07-11 CN CN201821100486.6U patent/CN208958295U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117122400A (en) * | 2023-10-25 | 2023-11-28 | 中国医学科学院北京协和医院 | In vivo self-torsion growth friendly spinal column orthopedic system |
| CN117122400B (en) * | 2023-10-25 | 2024-02-20 | 中国医学科学院北京协和医院 | In vivo self-torsion growth friendly spinal column orthopedic system |
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