CN213606800U - Backbone fixing device for orthopedics department - Google Patents
Backbone fixing device for orthopedics department Download PDFInfo
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- CN213606800U CN213606800U CN202022467333.9U CN202022467333U CN213606800U CN 213606800 U CN213606800 U CN 213606800U CN 202022467333 U CN202022467333 U CN 202022467333U CN 213606800 U CN213606800 U CN 213606800U
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Abstract
The utility model discloses a backbone fixing device for orthopedics, a serial communication port, include: the longitudinal connecting rod, the transverse connecting rod, the oblique connecting rod, the pedicle screw and the gasket; this orthopedics department backbone fixing device changes the connection horizontal pole on the traditional backbone fixer into two connection horizontal poles in tandem, two connect an oblique connecting rod of reconnection between the horizontal pole, make whole fixed pull stress structure be "Z" type, change its fixed traction force into the dispersion atress by concentrating the atress, can avoid single horizontal connecting rod to cause the distortion because of concentrating the atress, damage or not hard up influence fixed effect, the load structure of "Z" type constitutes two triangles with two vertical connecting rods of both sides, and triangle-shaped has stability, can keep this backbone fixer firm at fixed in-process to the damage backbone throughout, also guarantee the orthopedic effect of a backbone in its later stage.
Description
Technical Field
The utility model belongs to the fixed correction apparatus field of backbone, concretely relates to backbone fixing device for orthopedics.
Background
The posterior internal fixation of the spine is an effective treatment for the spine injury at present, and the spine is fixed by a spine fixer which is mainly composed of pedicle screws, longitudinal spine fixing rods and transverse connecting rods; pedicle screws are driven into two sides of the damaged spine, longitudinal spine fixing rods are arranged on the two sides and connected to the upper parts of the pedicle screws, and a transverse connecting rod is connected between the two longitudinal spine fixing rods; the main stress part of the conventional spine fixator, which has traction and fixing effects on the spine, is a transverse connecting rod, but a single transverse connecting rod is easy to cause insufficient traction stress and looseness, cannot realize a fixing effect on the damaged spine, and is not beneficial to the later correction effect of the spine; the depth of the pedicle screw is generally 18-20 mm, and is not more than 80% of the length of the screw, so that no connecting and fastening structure exists between the screw part which does not enter the bone and the bone surface, and the pedicle screw is easy to loosen along with the fact that the pedicle screw is in the body for too long time.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a backbone fixing device for orthopedics department, this backbone fixing device for orthopedics department changes the connection horizontal pole on traditional backbone fixer into two connection horizontal poles in front of each other, connect an oblique connecting rod again between two connection horizontal poles, make whole fixed traction stress structure be "Z" type, change its fixed traction force into dispersion atress from concentrated atress, can avoid single horizontal connecting rod to cause distortion, damage or not hard up and influence the fixed effect because of concentrated atress, the bearing structure of "Z" type constitutes two triangles with two longitudinal tie rods of both sides, and triangle-shaped has stability, can keep this backbone fixer firm in the fixed process of the damage backbone all the time, also guarantee a backbone effect of its later stage;
in order to achieve the technical effects, the utility model discloses a realize through following technical scheme: a spinal fixation device for orthopedic use, comprising: the longitudinal connecting rod, the transverse connecting rod, the oblique connecting rod, the pedicle screw and the gasket;
the number of the longitudinal connecting rods is two, and a transverse connecting rod is connected between the two longitudinal connecting rods in tandem; an inclined connecting rod is obliquely connected between the two transverse connecting rods; two ends of each longitudinal connecting rod are detachably connected with a pedicle screw; the screw rod of the pedicle screw is movably connected with a gasket through threads;
further, screw holes are formed in the upper surfaces of the two ends of the longitudinal connecting rod;
furthermore, the upper end of the pedicle screw is connected with a U-shaped groove, the longitudinal connecting rod is clamped in the U-shaped groove, the gasket is arranged on the upper surface of the longitudinal connecting rod, and the longitudinal connecting rod and the pedicle screw are fixedly connected through a fastening screw; the fastening screw penetrates through the gasket and the longitudinal connecting rod and is driven into the fastening screw in the pedicle screw to be screwed into the groove;
furthermore, the transverse connecting rod is divided into two sections, one end of the outer side of each of the two sections of transverse connecting rods is fixedly connected with the longitudinal connecting rod, and one end of the inner side of each of the two sections of transverse connecting rods is movably connected through a fastening screw;
furthermore, the inclined connecting rod is divided into two sections, one end of the outer side of each of the two sections of inclined connecting rods is fixedly connected with the transverse connecting rod, and one end of the inner side of each of the two sections of inclined connecting rods is movably connected with the transverse connecting rod through a fastening screw.
The utility model has the advantages that:
1. the spine fixing device for the orthopedics department changes connecting cross rods on a traditional spine fixer into a front connecting cross rod and a rear connecting cross rod, and a diagonal connecting rod is connected between the two connecting cross rods, so that an integral fixed traction stress structure is Z-shaped, the fixed traction force of the integral fixed traction stress structure is changed from concentrated stress to dispersed stress, the fixation effect can be prevented from being influenced by distortion, damage or looseness of a single transverse connecting rod due to concentrated stress, the Z-shaped stress structure and two longitudinal connecting rods on two sides form two triangles, and the triangles have stability, can always keep the spine fixer stable in the process of fixing the damaged spine, and also ensure the later spinal orthopedic effect;
2. the transverse connecting rod and the oblique connecting rod of the spinal column fixing device for orthopedics and traumatology are designed into two sections which are movably connected through a fastening screw, and the distance between the longitudinal connecting rods can be adjusted;
3. through the mobilizable connecting washer of screw thread on pedicle of vertebral arch screw, after pedicle of vertebral arch screw squeezes into the vertebra bone in, revolve the packing ring to hug closely the bone face again, can guarantee that pedicle of vertebral arch screw is too long in internal time, the not hard up condition of pedicle of vertebral arch screw also is difficult to appear.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view showing the overall structure of a spinal fixation device for orthopedics and traumatology;
FIG. 2 is a schematic view of a pedicle screw and its attachment structure of a spinal fixation device for orthopedics and traumatology;
in the drawings, the components represented by the respective reference numerals are listed below:
1-longitudinal connecting rod, 2-transverse connecting rod, 3-oblique connecting rod, 4-pedicle screw, 401-U-shaped groove, 402-gasket, 403-fastening screw, 404-fastening screw screwing-in groove and 5-gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Examples
Referring to fig. 1 to 2, a spinal fixation device for orthopedics and traumatology is characterized by comprising: the device comprises a longitudinal connecting rod 1, a transverse connecting rod 2, an inclined connecting rod 3, a pedicle screw 4 and a gasket 5;
the number of the longitudinal connecting rods 1 is two, and a transverse connecting rod 2 is connected between the two longitudinal connecting rods 1 in tandem; an inclined connecting rod 3 is obliquely connected between the two transverse connecting rods 2; two ends of each longitudinal connecting rod 1 are detachably connected with a pedicle screw 4 respectively; the screw rod of the pedicle screw 4 is movably connected with a gasket 5 through threads;
the upper surfaces of two ends of the longitudinal connecting rod 1 are provided with screw holes; the upper end of the pedicle screw 4 is connected with a U-shaped groove 401, the longitudinal connecting rod 1 is clamped in the U-shaped groove 401, a gasket 402 is arranged on the upper surface of the longitudinal connecting rod 1, and the longitudinal connecting rod 1 and the pedicle screw 4 are fixedly connected through a fastening screw 403; a fastening screw 403 is driven into a fastening screw screwing groove 404 in the pedicle screw 4 through the shim 402 and the longitudinal connecting rod 1;
the transverse connecting rod 2 is divided into two sections, one end of the outer side of each of the two sections of transverse connecting rods 2 is fixedly connected with the longitudinal connecting rod 1, and one end of the inner side of each of the two sections of transverse connecting rods is movably connected through a fastening screw; loosening the fastening screws, adjusting the length of the transverse connecting rods 2, and then tightening the fastening screws to fix the two sections of the transverse connecting rods 2; the inclined connecting rod 3 is divided into two sections, one end of the outer side of each of the two sections of inclined connecting rods 3 is fixedly connected with the transverse connecting rod 2, and one end of the inner side of each of the two sections of inclined connecting rods 3 is movably connected through a fastening screw; loosening the fastening screws, adjusting the length of the inclined connecting rods 3, and then tightening the fastening screws to fix the two sections of inclined connecting rods 3; the distance between the two longitudinal connecting rods 1 can be adjusted by adjusting the length of the transverse connecting rod 2 and the inclined connecting rod 3.
In summary, 1, the spine fixing device for orthopedics department changes the connecting transverse rods on the traditional spine fixer into two connecting transverse rods in front of each other and then connects an oblique connecting rod between the two connecting transverse rods, so that the integral fixing traction stress structure is in a Z shape, the fixing traction force is changed from concentrated stress to dispersed stress, the fixing effect can be prevented from being influenced by the distortion, damage or looseness of a single transverse connecting rod caused by concentrated stress, the Z-shaped stress structure and the two longitudinal connecting rods on the two sides form two triangles, and the triangles have stability, so that the spine fixing device can be always kept stable in the process of fixing the damaged spine, and the later spine correction effect is also ensured;
2. the transverse connecting rod and the oblique connecting rod of the spinal column fixing device for orthopedics and traumatology are designed into two sections which are movably connected through a fastening screw, and the distance between the longitudinal connecting rods can be adjusted;
3. through the mobilizable connecting washer of screw thread on pedicle of vertebral arch screw, after pedicle of vertebral arch screw squeezes into the vertebra bone in, revolve the packing ring to hug closely the bone face again, can guarantee that pedicle of vertebral arch screw is too long in internal time, the not hard up condition of pedicle of vertebral arch screw also is difficult to appear.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A spinal fixation device for orthopedic use, comprising: the longitudinal connecting rod, the transverse connecting rod, the oblique connecting rod, the pedicle screw and the gasket;
the number of the longitudinal connecting rods is two, and a transverse connecting rod is connected between the two longitudinal connecting rods in tandem; an inclined connecting rod is obliquely connected between the two transverse connecting rods; two ends of each longitudinal connecting rod are detachably connected with a pedicle screw; the screw rod of the pedicle screw is movably connected with a gasket through threads.
2. The spinal fixation device for orthopedics and traumatology of claim 1, wherein the longitudinal connecting rod has screw holes on the upper surface of both ends.
3. The spine fixing device for orthopedics and traumatology as claimed in claim 1, wherein the upper end of the pedicle screw is connected with a U-shaped groove, the longitudinal connecting rod is clamped in the U-shaped groove, the gasket is arranged on the upper surface of the longitudinal connecting rod, and the longitudinal connecting rod and the pedicle screw are fixedly connected through a fastening screw; the fastening screw penetrates through the gasket and the longitudinal connecting rod and is driven into the fastening screw screwing groove in the pedicle screw.
4. The spinal fixation device for orthopedics and traumatology as claimed in claim 1, wherein the transverse connecting rod is divided into two sections, one end of the outside of the two sections of transverse connecting rods is fixedly connected with the longitudinal connecting rod, and one end of the inside is movably connected with the longitudinal connecting rod through a fastening screw.
5. The spinal fixation device for orthopedics and traumatology as claimed in claim 1, wherein the oblique connecting rod is divided into two sections, one end of the outside of the two sections of oblique connecting rod is fixedly connected with the transverse connecting rod, and one end of the inside of the two sections of oblique connecting rod is movably connected with the transverse connecting rod through a fastening screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467333.9U CN213606800U (en) | 2020-10-30 | 2020-10-30 | Backbone fixing device for orthopedics department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467333.9U CN213606800U (en) | 2020-10-30 | 2020-10-30 | Backbone fixing device for orthopedics department |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213606800U true CN213606800U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022467333.9U Active CN213606800U (en) | 2020-10-30 | 2020-10-30 | Backbone fixing device for orthopedics department |
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| Country | Link |
|---|---|
| CN (1) | CN213606800U (en) |
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2020
- 2020-10-30 CN CN202022467333.9U patent/CN213606800U/en active Active
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