CN215129962U - Percutaneous lumbar vertebra lamina articular process screw targeting device - Google Patents
Percutaneous lumbar vertebra lamina articular process screw targeting device Download PDFInfo
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- CN215129962U CN215129962U CN202120442255.9U CN202120442255U CN215129962U CN 215129962 U CN215129962 U CN 215129962U CN 202120442255 U CN202120442255 U CN 202120442255U CN 215129962 U CN215129962 U CN 215129962U
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000008685 targeting Effects 0.000 title claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 206010052428 Wound Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002594 fluoroscopy Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000000338 in vitro Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000026137 Soft tissue injury Diseases 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000004705 lumbosacral region Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 208000015122 neurodegenerative disease Diseases 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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Abstract
The utility model relates to a percutaneous lumbar vertebrae vertebral plate articular process screw target ware, it includes the dead lever and slides and fixes the first locating lever on the dead lever, the second locating lever, first sighting rod and second sighting rod, lower extreme at first locating lever is equipped with first puncture hole, lower extreme at the second locating lever is equipped with second puncture hole, be connected with the aiming sleeve pipe between first sighting rod and second sighting rod, and let first puncture hole, second puncture hole and aiming sleeve pipe coaxial center, all be connected with coaxial spine portion in the bottom of first locating lever and second locating lever. The utility model discloses compact structure, design are rigorous, convenient operation are swift, can look for fast, the accuracy advances the nail point and advance the nail direction putting into percutaneous lumbar vertebrae vertebral plate protruding screw in-process, consequently when the condition of long, the perspective number of times of reduction operation, can also guarantee the success rate of operation.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to percutaneous lumbar vertebrae vertebral plate articular process screw targeting ware.
Background
Lumbar fusion has been widely used in the treatment of degenerative diseases of the lumbar spine. This procedure often results in local instability of the spine while performing extensive neural decompression, generally requiring reconstruction of operative site stability. Currently, pedicle screw internal fixation is considered the most effective method for reconstructing spinal stability. In recent years, with the continuous deepening of the minimally invasive spinal surgery concept, smaller operation wounds and smaller soft tissue injuries are the targets which are continuously pursued by clinical scholars. Compared with the traditional pedicle screw, the vertebral plate articular process screw has the advantages of smaller trauma, lower cost, quicker postoperative recovery and the like while realizing the same biomechanical stability, and is developed and applied in spinal minimally invasive fusion surgery. The nail placing technology of the vertebral plate articular process screw gradually turns from open to percutaneous operation under perspective guidance, has the advantages of small wound, low cost, quick recovery and the like, but is limited by complicated anatomical structure of the nail placing position, insufficient nail placing accuracy and repeated operation, and if the operation is careless, serious consequences can be caused, the technical threshold is raised, and the wide application of the nail placing technology is prevented. Therefore, how to improve the accuracy and safety of the vertebral plate articular process screw implantation is a current clinical challenge.
Disclosure of Invention
The utility model aims at providing a percutaneous lumbar vertebrae vertebral plate articular process screw target ware, it has compact structure, design rigorously, convenient operation is swift, puts into percutaneous lumbar vertebrae vertebral plate articular process can be fast, the accurate nail point of advancing of looking for and advance the nail direction, consequently when reducing the operation long, under the condition of perspective number of times, can also guarantee to put the advantage of nail success rate.
For solving the above-mentioned problem that exists among the prior art, the utility model provides a pair of percutaneous lumbar vertebrae vertebral plate articular process screw target ware, fix first locating lever, second locating lever, first sighting rod and second sighting rod on the dead lever including dead lever and slip, the lower extreme of first locating lever is equipped with first puncture hole, the lower extreme of second locating lever is equipped with the second puncture hole, be connected with between first sighting rod and the second sighting rod and aim the sleeve pipe, first puncture hole, second puncture hole and aim the coaxial axle center of sleeve pipe, the bottom of first locating lever and second locating lever all is connected with coaxial spine portion.
Further, the utility model relates to a percutaneous lumbar vertebrae vertebral plate articular process screw target ware, wherein the lower extreme of first sighting rod is equipped with first sighting hole, the lower extreme of second sighting rod is equipped with the second sighting hole, first sighting hole and second sighting hole are with the axle center, aim the sleeve pipe and slide and set up in first sighting hole and second sighting hole.
Further, the utility model relates to a percutaneous lumbar vertebrae vertebral plate articular process screw target ware, wherein the dead lever is equipped with a T type guide way along the axis direction, first locating lever, second locating lever, first sighting rod and second sighting rod all hang through the boss that the upper end set up in the T type guide way, still be equipped with the device of fixed first locating lever, second locating lever, first sighting rod and second sighting rod position in the T type guide way.
Further, the utility model relates to a percutaneous lumbar vertebrae vertebral plate articular process screw target ware, wherein the device of fixed first locating lever, second locating lever, first sighting rod and second sighting rod position is the clamp plate that is located the boss top, the dead lever is equipped with a plurality of screw holes that run through T type guide way along length direction, be connected with fastening screw in the screw hole, fastening screw passes through the screw hole top on the clamp plate.
Further, the utility model relates to a percutaneous lumbar vertebrae vertebral plate articular process screw target ware, wherein be equipped with the serration on the lower terminal surface of clamp plate, be equipped with on the up end of boss with the serration recess of serration gomphosis.
Furthermore, the utility model relates to a percutaneous lumbar vertebrae vertebral plate articular process screw target ware, wherein the serration is arranged along the length direction of clamp plate.
Further, the utility model relates to a percutaneous lumbar vertebrae vertebral plate articular process screw target ware, wherein first locating rod comprises first upper segment pole and first lower segment pole, the lower extreme of first upper segment pole is equipped with opening shoulder hole down, be equipped with deep groove ball bearing and thrust bearing from last to down in the shoulder hole in proper order, be equipped with the positioning groove of a plurality of vertical distributions along circumference on the internal perisporium of deep groove ball bearing's inner circle, the upper end of first lower segment pole be equipped with the location that positioning groove matches is protruding.
Further, the utility model relates to a percutaneous lumbar vertebrae vertebral plate articular process screw target ware, wherein the second locating lever comprises second upper segment pole and second hypomere pole, the lower extreme of second upper segment pole is equipped with the blind hole down of opening, be equipped with mutual clearance fit's arch and recess on the upper end periphery wall of second hypomere pole and on the inner wall of blind hole respectively.
The utility model relates to a percutaneous lumbar vertebra vertebral plate articular process screw target ware system and control method compare with prior art, the utility model discloses a dead lever and slide first locating lever, second locating lever, first sighting rod and the second sighting rod of fixing on the dead lever, be equipped with first puncture hole at the lower extreme of first locating lever, be equipped with second puncture hole at the lower extreme of second locating lever, be connected with the sighting sleeve between first sighting rod and second sighting rod to let first puncture hole, second puncture hole and sighting sleeve coaxial center, and all be connected with coaxial spine portion in the bottom of first locating lever and second locating lever. When the vertebral plate articular process screw fixing device is used practically, the first positioning rod is anchored at the transverse process root on one side, then the second positioning rod is anchored at the opposite lateral process root of the upper vertebral body by sliding the second positioning rod, so that the first puncture hole and the second puncture hole are used for positioning the fixing position required by the screw, and then the screw feeding point and the screw feeding direction are precisely guided in vitro by utilizing the three-point and one-line characteristics of the aiming sleeve and the first puncture hole and the second puncture hole, and finally the fixation of the vertebral plate articular process screw is completed. The screw feeding device has the advantages of compact structure, rigorous design and convenient and fast operation, can quickly and accurately find a screw feeding point and a screw feeding direction in the process of placing the percutaneous lumbar vertebral plate articular process screw, and can ensure the success rate of the operation under the conditions of reducing the operation time and the fluoroscopy times.
The following detailed description of the percutaneous lumbar vertebral plate zygopophysis screw targeting device of the present invention will be made with reference to the specific embodiments shown in the drawings:
drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a side view of an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 5 is a schematic cross-sectional view of another embodiment of the present invention
FIG. 6 is an enlarged view of a portion A of FIG. 5;
FIG. 7 is a partial enlarged view of portion B of FIG. 5;
fig. 8 is a schematic view of the practical operation of the present invention.
Detailed Description
It should be noted that, in the present invention, the terms of upper, lower, front, rear, left, right, and the like are only described according to the accompanying drawings, so as to facilitate understanding, and are not intended to limit the technical solution and the scope of the present invention.
Example one
As shown in fig. 1 and 4, the utility model relates to a percutaneous lumbar vertebra laminar articular process screw target ware includes dead lever 1 and slides and fixes first locating lever 2 on the dead lever, second locating lever 3, first sighting rod 4 and second sighting rod 5, the lower extreme of first locating lever 2 is equipped with first puncture hole 21, the lower extreme of second locating lever 3 is equipped with second puncture hole 31, be connected with between first sighting rod 4 and the second sighting rod 5 and aim sleeve 6, first puncture hole 21, second puncture hole 31 and aim sleeve 6 are coaxial, and all be connected with coaxial spine portion in the bottom of first locating lever 2 and second locating lever 3.
In practical use, as shown in fig. 8, the first positioning rod 2 is anchored at the root of the transverse process at one side, then the second positioning rod 3 is slid to anchor the second positioning rod 3 at the root of the spinous process at the opposite side of the upper vertebral body, so that the first puncture hole 21 and the second puncture hole 31 position the final fixing position of the vertebral plate articular process screw, the nail feeding point and the nail feeding direction (i.e. the direction guided by the dotted line in fig. 8) are precisely guided in vitro by the characteristics of three points and one line of the aiming sleeve 6 and the first puncture hole 21 and the second puncture hole 31, then the puncture needle 9 penetrates from the aiming sleeve 6, the guide wire is placed, and finally the vertebral plate articular process screw is fixed at the final fixing position along the guide wire. The screw feeding device has the advantages of compact structure, rigorous design and convenient and fast operation, can quickly and accurately find a screw feeding point and a screw feeding direction in the process of placing the percutaneous lumbar vertebral plate articular process screw, and can ensure the success rate of the operation under the conditions of reducing the operation time and the fluoroscopy times.
Preferably, as shown in fig. 4, the first aiming hole 41 is provided at the lower end of the first aiming rod 4, the second aiming hole 51 is provided at the lower end of the second aiming rod 5, the first aiming hole 41 and the second aiming hole 51 are coaxial, and the aiming sleeve 6 is slidably disposed in the first aiming hole 41 and the second aiming hole 51. Thus, the first sighting hole 41 and the second sighting hole 51 can be coaxial with the first puncture hole 21 and the second puncture hole 31, and the sighting sleeve 6 can be finely adjusted to be used for tightly propping the body surface in the operation process under the condition that the positions of the first sighting rod 4 and the second sighting rod 5 are fixed, and meanwhile, the sighting sleeve 6 is convenient to replace when worn.
As an optimized solution, as shown in fig. 2 and 4, in the present embodiment, the fixing rod 1 is provided with a T-shaped guide slot 11 along the axial direction, and the first positioning rod 2, the second positioning rod 3, the first sighting rod 4 and the second sighting rod 5 are all suspended in the T-shaped guide slot 11 through a boss provided at the upper end. When not fixed, the first positioning rod 2, the second positioning rod 3, the first sighting rod 4, and the second sighting rod 5 can slide freely in the T-shaped guide groove 11. Still be equipped with the device of fixed first locating lever 2, second locating lever 3, first sighting rod 4 and 5 positions of second sighting rod in the T type guide way 11, can fix first locating lever 2, second locating lever 3, first sighting rod 4 and second sighting rod 5 simultaneously. The device for fixing the positions of the first positioning rod 2, the second positioning rod 3, the first sighting rod 4 and the second sighting rod 5 is actually a pressure plate 7 positioned above the boss. The fixing rod 1 is provided with a plurality of threaded holes penetrating through the T-shaped guide grooves 11 in the length direction, fastening screws 8 are connected in the threaded holes, and the fastening screws 8 are pressed against the pressing plate 7 through the threaded holes. During the in-service use, first locating lever 2 and second locating lever 3 are at first confirmed in the position on dead lever 1, then adjust the position on dead lever 1 of first sighting rod 4 and second sighting rod 5, and it can be fixed simultaneously first locating lever 2, second locating lever 3, first sighting rod 4 and second sighting rod 5 to screw up fastening screw 8 at last for practice thrift operation time.
As an optimized scheme, as shown in fig. 4, in the present embodiment, the lower end surface of the pressure plate 7 is provided with the saw-toothed protrusions, and the upper end surface of the boss is provided with the saw-toothed grooves engaged with the saw-toothed protrusions, so that the relative sliding can be limited while the positioning is realized. And the saw-toothed protrusions are arranged along the length direction of the pressing plate 7, so that the first positioning rod 2, the second positioning rod 3, the first sighting rod 4 and the second sighting rod 5 can be prevented from sliding left and right after fixation to enable the fixation effect to be more stable, and further the preset fixing position of the vertebral plate articular process screw is prevented from being changed.
Second embodiment
As an optimized scheme, as shown in fig. 5 and fig. 6, the present embodiment is different from the first embodiment in that the first positioning rod 2 is composed of a first upper rod 22 and a first lower rod 23, a stepped hole 221 with a downward opening is formed at the lower end of the first upper rod 22, a deep groove ball bearing 222 and a thrust bearing 223 are sequentially arranged in the stepped hole 221 from top to bottom, a plurality of vertically distributed positioning grooves are formed in the circumferential direction on the inner circumferential wall of the inner ring of the deep groove ball bearing 222, and a positioning protrusion matched with the positioning grooves is formed at the upper end of the first lower rod 23. Like this first locating lever 2 falls into two sections, when in actual use, can anchor first lower section pole 23 at first, then first upper segment pole 22 passes through positioning groove and inserts to first lower section pole 23 on, later utilizes deep groove ball bearing 222 and thrust bearing 223 to make first upper segment pole 22 can rotate first lower section pole 23 relatively under the drive of locating lever 1, conveniently seeks the anchor position of second locating lever 3.
As a further optimized solution, as shown in fig. 5 and 7, the second positioning rod 3 in this embodiment is composed of a second upper rod 32 and a second lower rod 33, a blind hole with a downward opening is formed at the lower end of the second upper rod 32, and a protrusion and a groove which are in clearance fit with each other are respectively formed on the outer peripheral wall of the upper end of the second lower rod 33 and the inner wall of the blind hole. This facilitates the rotation anchoring operation of the second lower rod 33 without reducing the overall strength of the second positioning rod 3.
The above embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and various modifications made by the skilled in the art according to the technical solutions of the present invention should fall within the scope of the invention as defined by the claims.
Claims (8)
1. The utility model provides a percutaneous lumbar vertebra vertebral plate articular process screw target ware, its characterized in that includes dead lever (1) and slides and fixes first locating lever (2), second locating lever (3), first sighting rod (4) and second sighting rod (5) on the dead lever, the lower extreme of first locating lever (2) is equipped with first puncture hole (21), the lower extreme of second locating lever (3) is equipped with second puncture hole (31), be connected with between first sighting rod (4) and second sighting rod (5) and aim sleeve pipe (6), first puncture hole (21), second puncture hole (31) and aim sleeve pipe (6) coaxial center, the bottom of first locating lever (2) and second locating lever (3) all is connected with coaxial spine portion.
2. The percutaneous lumbar vertebral plate zygapophysis screw targeting device according to claim 1, wherein the lower end of the first aiming rod (4) is provided with a first aiming hole (41), the lower end of the second aiming rod (5) is provided with a second aiming hole (51), the first aiming hole (41) and the second aiming hole (51) are coaxial, and the aiming sleeve (6) is slidably arranged in the first aiming hole (41) and the second aiming hole (51).
3. The percutaneous lumbar vertebral plate zygapophysis screw targeting device according to claim 2, wherein the fixing rod (1) is provided with a T-shaped guide groove (11) along the axial direction, the first positioning rod (2), the second positioning rod (3), the first sighting rod (4) and the second sighting rod (5) are all suspended in the T-shaped guide groove (11) through a boss arranged at the upper end, and a device for fixing the positions of the first positioning rod (2), the second positioning rod (3), the first sighting rod (4) and the second sighting rod (5) is further arranged in the T-shaped guide groove (11).
4. The percutaneous lumbar vertebral plate zygapophysis screw targeting device according to claim 3, wherein the means for fixing the position of the first positioning rod (2), the second positioning rod (3), the first sighting rod (4) and the second sighting rod (5) is a pressing plate (7) above the boss, the fixing rod (1) is provided with a plurality of threaded holes penetrating through the T-shaped guide groove (11) along the length direction, the threaded holes are connected with the fastening screws (8), and the fastening screws (8) are pressed against the pressing plate (7) through the threaded holes.
5. The percutaneous lumbar vertebral plate zygapophysis screw targeting device as claimed in claim 4, wherein the lower end face of the pressure plate (7) is provided with a saw-toothed protrusion, and the upper end face of the boss is provided with a saw-toothed groove embedded with the saw-toothed protrusion.
6. The percutaneous lumbar laminar zygapophyseal screw targeting device of claim 5, wherein the serrations are disposed along the length of the pressure plate (7).
7. The percutaneous lumbar vertebral plate zygapophysis screw targeting device according to claim 4, wherein the first positioning rod (2) consists of a first upper rod (22) and a first lower rod (23), the lower end of the first upper rod (22) is provided with a stepped hole (221) with a downward opening, a deep groove ball bearing (222) and a thrust bearing (223) are sequentially arranged in the stepped hole (221) from top to bottom, the inner peripheral wall of the inner ring of the deep groove ball bearing (222) is circumferentially provided with a plurality of vertically distributed positioning grooves, and the upper end of the first lower rod (23) is provided with a positioning protrusion matched with the positioning grooves.
8. The percutaneous lumbar vertebral plate zygapophysis screw targeting device according to claim 7, wherein the second positioning rod (3) consists of a second upper rod (32) and a second lower rod (33), the lower end of the second upper rod (32) is provided with a blind hole with a downward opening, and the outer peripheral wall of the upper end of the second lower rod (33) and the inner wall of the blind hole are respectively provided with a protrusion and a groove which are in clearance fit with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120442255.9U CN215129962U (en) | 2021-03-01 | 2021-03-01 | Percutaneous lumbar vertebra lamina articular process screw targeting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120442255.9U CN215129962U (en) | 2021-03-01 | 2021-03-01 | Percutaneous lumbar vertebra lamina articular process screw targeting device |
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| Publication Number | Publication Date |
|---|---|
| CN215129962U true CN215129962U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120442255.9U Active CN215129962U (en) | 2021-03-01 | 2021-03-01 | Percutaneous lumbar vertebra lamina articular process screw targeting device |
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| Country | Link |
|---|---|
| CN (1) | CN215129962U (en) |
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2021
- 2021-03-01 CN CN202120442255.9U patent/CN215129962U/en active Active
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