CN219480294U - Tamper applied to reduction of vertebral body rear wall fracture - Google Patents
Tamper applied to reduction of vertebral body rear wall fracture Download PDFInfo
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- CN219480294U CN219480294U CN202320101524.4U CN202320101524U CN219480294U CN 219480294 U CN219480294 U CN 219480294U CN 202320101524 U CN202320101524 U CN 202320101524U CN 219480294 U CN219480294 U CN 219480294U
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- compression plate
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Abstract
The utility model belongs to the technical field of medical appliances, and particularly relates to a tamper applied to the reduction of a vertebral body rear wall fracture. The device comprises a knocking rod, a straight rod and a compression plate, wherein one end of the straight rod is rotationally connected with the compression plate, and the compression plate is rotationally arranged at the other end of the straight rod; the knocking rod is internally provided with a rotating unit which is connected with the compression plate. The compression plate is rotated through the rotation unit, and the compression plate can be reset under different vertebral body rear wall fracture conditions by only using one set of tamper.
Description
Technical Field
The utility model belongs to the technical field of medical appliances, and particularly relates to a tamper applied to the reduction of a vertebral body rear wall fracture.
Background
Clinical vertebral fracture shifts backward to compress spinal cord, and when adopting the way of reducing pressure in the back way, the bone piece can't reset.
The back wall of the vertebral body is defined as a range of 5-8cm in front of the back edge of the vertebral body, and the fracture blocks of the back wall of the vertebral body can enter the vertebral canal to press spinal nerves, and the traditional internal fixation mode of the back path pedicle of vertebral arch can indirectly reset the back wall fracture of the vertebral body, but the back wall fracture of the vertebral body is difficult to reset or has poor operation effect when the back wall fracture of the vertebral body is overturned or seriously. It is therefore necessary to tamp the posterior vertebral fracture directly using a special reduction instrument.
Chinese patent CN208838122U discloses a tamper applied to the reduction of the back wall fracture of the vertebral body, but the compression paddle angle cannot be adjusted, and when the reduction of the back wall fracture of the vertebral body of different types is performed, the tamper with different compression paddle angles needs to be replaced to operate, and a plurality of groups of tamper needs to be prepared, which is very inconvenient.
Disclosure of Invention
The purpose of the utility model is that: aims to provide a tamper applied to the reduction of the back wall fracture of the vertebral body, realizes the rotation of a compression plate through a rotation unit, and can reduce different situations of the back wall fracture of the vertebral body by only using one set of tamper.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
the tamper applied to the reduction of the back wall fracture of the vertebral body comprises a knocking rod, a straight rod and a compression plate, wherein one end of the straight rod is rotationally connected with the compression plate;
the knocking rod is internally provided with a rotating unit which is connected with the compression plate.
The setting is favorable to adjusting the angle of compression plate through the rotation unit, just uses a set of rammer to reset the condition of different centrum back wall bone fracture.
Preferably, the rotating unit comprises a combined rod and a driving assembly, the combined rod is arranged in the knocking rod and penetrates through the straight rod, the bottom of the combined rod is connected with the compression plate, and the driving assembly is arranged at the top end of the compression plate. The combined rod is driven by the driving component to lift to drive the compression plate to rotate.
Preferably, the driving assembly comprises an adjusting block and a gear, the adjusting block is rotatably arranged at the top end of the knocking rod, a gear ring is arranged in the adjusting block, the gear is fixedly connected to the top of the combined rod, and the gear is meshed with the gear ring. The setting is favorable to medical personnel to rotate the angle that the regulating block adjusted the compression paddle like this.
Preferably, the combined rod comprises a first transmission rod and a second transmission rod, the gear is fixedly arranged at the top end of the first transmission rod, the top end of the second transmission rod is rotationally connected with the bottom of the first transmission rod, and the bottom of the second transmission rod is connected with the compression plate;
lifting threads are arranged on the outer wall of the first transmission rod, and internal threads are arranged on the inner wall of the knocking rod. The lifting of the combined rod is realized through threaded transmission.
Preferably, the compression plate is fixedly connected with a first rotating shaft, the first rotating shaft is rotatably installed in the straight rod, the bottom of the second transmission rod is fixedly connected with a second rotating shaft, the second rotating shaft is rotatably connected with the compression plate, and the axes of the first rotating shaft and the second rotating shaft are parallel to each other. The arrangement is favorable for lifting the second transmission rod to drive the compression plate to rotate.
Preferably, the angle line is arranged on the adjusting block, and the identification line is arranged on the side wall of the knocking rod. The arrangement is beneficial to controlling the rotation angle of the compression plate.
The utility model adopting the technical scheme has the following advantages:
in this scheme, only need rotate the regulating block, drive first transfer line through gear ring transmission and rotate, first transfer line pushes down or lifts the second transfer line under screw drive's effect, and the second transfer line removes and drives the compression paddle around the axis of first pivot rotates, just can adjust the angle of compression paddle to reset the condition of fracture behind the centrum of difference, easy operation, convenient and fast.
Drawings
The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic view of the overall construction of an embodiment of a tamper for use in a posterior wall fracture reduction of a vertebral body according to the present utility model;
FIG. 2 is a schematic view of an exploded view of a rotary unit of an embodiment of a tamper for use in a posterior wall fracture reduction of a vertebral body according to the present utility model;
FIG. 3 is a schematic view of the internal structure of a tapping rod of an embodiment of the present utility model applied to reduction of a posterior wall fracture of a vertebral body;
FIG. 4 is a schematic view of the configuration of an adjustment block of an embodiment of the tamper applied to reduction of a posterior wall fracture of a vertebral body in accordance with the present utility model;
FIG. 5 is a schematic illustration of the connection of a second drive rod and compression plate of an embodiment of a tamper for use in a posterior wall fracture reduction of a vertebral body in accordance with the present utility model;
the main reference numerals are as follows:
1. knocking the rod; 11. an internal thread; 2. a straight rod; 3. a compression plate; 31. a first rotating shaft; 4. a combination rod; 41. a first transmission rod; 411. lifting threads; 42. a second transmission rod; 421. a second rotating shaft; 5. an adjusting block; 51. a gear ring; 6. a gear.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and the specific embodiments, wherein like or similar parts are designated by the same reference numerals throughout the drawings or the description, and implementations not shown or described in the drawings are in a form well known to those of ordinary skill in the art. In addition, directional terms such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", etc. in the embodiments are merely directions with reference to the drawings, and are not intended to limit the scope of the present utility model.
As shown in fig. 1 to 5, the tamper for the fracture reduction of the back wall bone of the vertebral body comprises a knocking rod 1, a straight rod 2 and a compression plate 3, wherein the straight rod 2 and the knocking rod 1 are integrally formed, a rotating unit is arranged in the knocking rod 1, and the compression plate 3 is rotatably arranged at the bottom end of the straight rod 2.
In this embodiment, when the vertebral body rear wall fracture reduction is required, the rotation unit is adjusted according to the situation of the position of the vertebral body rear wall fracture, so that the compression plate 3 rotates to a proper angle. The pressing plate 3 is pressed at the position needing to be reset, and the medical staff knocks the knocking rod 1 to reset the back wall of the vertebral body.
As shown in fig. 1, 2 and 4, the rotating unit comprises a combined rod 4 and a driving component for driving the combined rod 4 to move, the combined rod 4 is arranged in the knocking rod 1, the driving component comprises an adjusting block 5, the adjusting block 5 is rotatably arranged at the top end of the knocking rod 1, a gear ring 51 is integrally formed in the adjusting block 5, a gear 6 is welded at the top of the combined rod 4, and the gear 6 is meshed with the gear ring 51.
In the embodiment, the adjusting block 5 is rotated, and the gear ring 51 is driven by the gear 6 to drive the combination rod 4 to rotate.
As shown in fig. 2 and 3, the combination rod 4 includes a first transmission rod 41 and a second transmission rod 42, the gear 6 is welded at the top end of the first transmission rod 41, a limiting groove is formed in the bottom of the first transmission rod 41, and a limiting block is integrally formed at the top end of the second transmission rod 42 and rotatably installed in the limiting groove, so that the first transmission rod 41 and the second transmission rod 42 are rotatably connected. The bottom end of the second transmission rod 42 is rotatably connected with the compression plate 3.
Lifting threads 411 are machined on the outer wall of the first transmission rod 41, and internal threads are arranged on the inner wall of the knocking rod 1.
In this embodiment, the combination rod 4 rotates under the action of the adjusting block 5, and the rotation of the combination rod 4 is converted into lifting motion through the thread transmission of the lifting thread 411 and the internal thread on the first transmission rod 41, so as to drive the combination rod 4 to move in the vertical direction.
The combination rod 4 is designed into a split type first transmission rod 41 and a split type second transmission rod 42, and the first transmission rod 41 can rotate relative to the second transmission rod 42, so that the second transmission rod 42 only performs lifting movement in the transmission process.
As shown in fig. 2 and 5, the compression plate 3 is welded with a first rotating shaft 31, two ends of the first rotating shaft 31 are rotatably mounted at the bottom of the straight rod 2, the bottom of the second transmission rod 42 is welded with a second rotating shaft 421, the second rotating shaft 421 is rotatably mounted on the compression plate 3, and axes of the second rotating shaft 421 and the first rotating shaft 31 are parallel to each other.
In this embodiment, the second transmission rod 42 is lifted to drive the compression plate 3 to rotate around the axis of the first rotating shaft 31, so as to realize the adjustment of the angle of the compression plate 3.
The angle line is arranged on the adjusting block 5, the identification line is arranged on the side wall of the knocking rod 1, and the angle adjusted by the compression plate 3 is controlled by corresponding the identification line and the angle line.
The tamper for reducing the fracture of the back wall of the vertebral body is provided in detail. The description of the specific embodiments is only intended to aid in understanding the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (6)
1. Be applied to rammer that vertebra back wall bone is folded and is reset, its characterized in that: the device comprises a knocking rod (1), a straight rod (2) and a compression plate (3), wherein one end of the straight rod (2) is rotationally connected with the compression plate (3);
a rotating unit is arranged in the knocking rod (1), and the rotating unit is connected with the compression plate (3).
2. A tamper for use in a posterior wall fracture reduction of vertebral bodies according to claim 1, wherein: the rotary unit comprises a combined rod (4) and a driving assembly, the combined rod (4) is arranged in the knocking rod (1) and penetrates through the straight rod (2), the bottom of the combined rod (4) is connected with the compression plate (3), and the driving assembly is arranged at the top end of the compression plate (3).
3. A tamper for use in a posterior wall fracture reduction of vertebral bodies according to claim 2, wherein: the driving assembly comprises an adjusting block (5) and a gear (6), the adjusting block (5) is rotatably arranged at the top end of the knocking rod (1), a gear ring (51) is arranged in the adjusting block (5), the gear (6) is fixedly connected to the top of the combined rod (4), and the gear (6) is meshed with the gear ring (51).
4. A tamper for use in a posterior wall fracture reduction of a vertebral body according to claim 3, wherein: the combined rod (4) comprises a first transmission rod (41) and a second transmission rod (42), the gear (6) is fixedly arranged at the top end of the first transmission rod (41), the top end of the second transmission rod (42) is rotationally connected with the bottom of the first transmission rod (41), and the bottom of the second transmission rod (42) is connected with the compression plate (3);
lifting threads (411) are arranged on the outer wall of the first transmission rod (41), and internal threads are arranged on the inner wall of the knocking rod (1).
5. A tamper for use in a posterior wall fracture reduction of a vertebral body according to claim 4, wherein: the compression plate (3) is fixedly connected with a first rotating shaft (31), the first rotating shaft (31) is rotatably installed in the straight rod (2), the bottom of the second transmission rod (42) is fixedly connected with a second rotating shaft (421), the second rotating shaft (421) is rotatably connected with the compression plate (3), and the axes of the first rotating shaft (31) and the second rotating shaft (421) are mutually parallel.
6. A tamper for use in a posterior wall fracture reduction of a vertebral body according to claim 3, wherein: an angle line is arranged on the adjusting block (5), and a marking line is arranged on the side wall of the knocking rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320101524.4U CN219480294U (en) | 2023-02-02 | 2023-02-02 | Tamper applied to reduction of vertebral body rear wall fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320101524.4U CN219480294U (en) | 2023-02-02 | 2023-02-02 | Tamper applied to reduction of vertebral body rear wall fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219480294U true CN219480294U (en) | 2023-08-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320101524.4U Active CN219480294U (en) | 2023-02-02 | 2023-02-02 | Tamper applied to reduction of vertebral body rear wall fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219480294U (en) |
-
2023
- 2023-02-02 CN CN202320101524.4U patent/CN219480294U/en active Active
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