CN219000522U - Measuring tool for posterior spine surgery - Google Patents
Measuring tool for posterior spine surgery Download PDFInfo
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- CN219000522U CN219000522U CN202223580665.3U CN202223580665U CN219000522U CN 219000522 U CN219000522 U CN 219000522U CN 202223580665 U CN202223580665 U CN 202223580665U CN 219000522 U CN219000522 U CN 219000522U
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Abstract
The utility model belongs to the technical field of medical instruments, and discloses a measuring tool for posterior spinal surgery. The bottom end of the first measuring rod is provided with a locating sleeve. The top end of the second measuring rod is hinged with the top end of the first measuring rod, and a positioning sleeve is arranged at the bottom end of the second measuring rod. The angle scale is fixedly arranged on the first measuring rod. The pointer is fixedly arranged on the second measuring rod and is used for measuring the included angle between the first measuring rod and the second measuring rod in cooperation with the angle scale. When the measuring tool for the posterior spinal surgery is used, the locating sleeves at the bottom ends of the first measuring rod and the second measuring rod are respectively sleeved on the pedicle screw seat, and the included angle between the first measuring rod and the second measuring rod is measured through the cooperation of the pointer and the angle dial, so that the angle of vertebral body correction can be conveniently and rapidly determined in the surgery, and whether the correction is in place or not is determined after the correction. And the measurement is more accurate.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a measuring tool for posterior spinal surgery.
Background
The thoracolumbar posterior internal fixation system is suitable for the thoracolumbar posterior firm internal fixation, maintains physiological curvature, and performs reduction fixation and correction. The pedicle screw and the connecting rod are implanted in the operation, and when the reduction, the fixation and the correction are carried out, the angle of the correction of the vertebral body is required to be determined; after the correction, a determination is made as to whether the correction is in place. The existing angle measuring tool has the problems of inconvenient operation and inaccurate angle measurement.
Accordingly, there is a need for a posterior spinal surgical measurement tool that addresses the foregoing issues.
Disclosure of Invention
The utility model aims to provide a measuring tool for posterior spinal surgery, which is convenient and quick to use and has more accurate measuring results.
To achieve the purpose, the utility model adopts the following technical scheme:
a posterior spinal surgical measurement tool, comprising:
the bottom end of the first measuring rod is provided with a positioning sleeve, and the positioning sleeve can be sleeved on the pedicle screw seat;
the top end of the second measuring rod is hinged with the top end of the first measuring rod, and the bottom end of the second measuring rod is provided with the positioning sleeve;
the angle scale is fixedly arranged on the first measuring rod;
the pointer is fixedly arranged on the second measuring rod and is used for measuring the included angle between the first measuring rod and the second measuring rod in a matched mode with the angle scale.
Preferably, the first measuring rod comprises a first connecting rod and a first measuring rod main body fixedly arranged at the bottom end of the first connecting rod, the second measuring rod comprises a second connecting rod and a second measuring rod main body fixedly arranged at the bottom end of the second connecting rod, the first connecting rod and the second connecting rod are both plate-shaped, the first measuring rod main body and the second measuring rod main body are columnar, the top end of the first connecting rod is hinged with the top end of the second connecting rod, the angle dial is fixedly arranged on the first connecting rod, and the pointer is fixedly arranged on the second connecting rod.
Preferably, the top end of the first measuring rod main body is provided with a groove, the bottom end of the first connecting rod is inserted into the groove, and the first connecting rod is connected with the first measuring rod main body through a screw;
the top end of the second measuring rod main body is provided with the groove, the bottom end of the second connecting rod is inserted into the groove of the second measuring rod main body, and the second connecting rod is connected with the second measuring rod main body through a screw.
Preferably, the angle plate is connected with the first connecting rod through a screw.
Preferably, the method further comprises:
the adjusting bolt is provided with a first connecting hole at the top end of the first measuring rod, a second connecting hole at the top end of the second measuring rod, and the adjusting bolt penetrates through the first connecting hole and the second connecting hole;
and the adjusting nut is in threaded connection with the threaded end of the adjusting bolt.
Preferably, the device further comprises a gasket, wherein the gasket is sleeved on the adjusting bolt and is positioned between the first connecting rod and the second connecting rod.
Preferably, the angle scale is arc-shaped, the circle center of the angle scale is positioned on the hinge shaft of the first measuring rod and the second measuring rod, and the pointer extends along the axial direction of the second measuring rod.
Preferably, a bar-shaped hole is formed in the angle scale, and the pointer is arranged at the bar-shaped hole.
Preferably, a gap is arranged between the pointer and the first measuring rod, and the gap is used for accommodating an angle scale.
Preferably, the positioning sleeve is provided with a positioning opening, and the positioning opening is used for accommodating the connecting rod.
The utility model has the beneficial effects that:
when the measuring tool for the posterior spinal surgery is used, the locating sleeves at the bottom ends of the first measuring rod and the second measuring rod are respectively sleeved on the pedicle screw seat, and the included angle between the first measuring rod and the second measuring rod is measured through the cooperation of the pointer and the angle dial, so that the angle of vertebral body correction can be conveniently and rapidly determined in the surgery, and whether the correction is in place or not is determined after the correction. And the cooperation of the locating sleeve and the pedicle screw base enables the measurement of the measuring tool for the posterior spine surgery to be more accurate.
Drawings
FIG. 1 is a schematic view of a measuring tool for posterior spinal surgery according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram II of a tool for measuring posterior spinal surgery according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a portion of a posterior spinal surgical measurement tool according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a first connecting rod of a posterior spinal surgical measuring tool according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram II of a portion of a posterior spinal surgical measurement tool according to an embodiment of the present utility model;
FIG. 6 is a schematic view of a portion of a posterior spinal surgical measurement tool according to an embodiment of the present utility model;
FIG. 7 is a schematic view of a portion of a posterior spinal surgical measurement tool according to an embodiment of the present utility model;
FIG. 8 is a schematic view of a portion of a posterior spinal surgical measurement tool according to an embodiment of the present utility model;
FIG. 9 is a schematic view of the structure of an adjusting bolt of a posterior spinal surgical measuring tool according to an embodiment of the present utility model;
FIG. 10 is a schematic view of the construction of an adjustment nut of a posterior spinal surgical measurement tool provided by an embodiment of the present utility model;
fig. 11 is a schematic structural view of a spacer for a posterior spinal surgical measuring tool according to an embodiment of the present utility model.
In the figure:
1. a first measuring rod; 11. a first connecting rod; 12. a first measuring stick body;
2. a second measuring rod; 21. a second connecting rod; 22. a second measuring stick body;
3. a positioning sleeve; 31. positioning the opening;
4. an angle scale; 41. a bar-shaped hole;
5. a pointer;
6. an adjusting bolt;
7. an adjusting nut;
8. a gasket;
10. a groove.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
As shown in fig. 1 to 3, the present embodiment provides a measuring tool for posterior spinal surgery, which comprises a first measuring rod 1, a second measuring rod 2, an angle scale 4 and a pointer 5. The locating sleeve 3 is arranged at the bottom end of the first measuring rod 1, the locating sleeve 3 can be sleeved on the pedicle screw base, and specifically, the locating sleeve 3 is provided with an inner cavity matched with the shape of the pedicle screw base, so that the locating sleeve 3 can be stably sleeved on the pedicle screw base. The top of the second measuring rod 2 is hinged with the top of the first measuring rod 1, and the bottom of the second measuring rod 2 is provided with a positioning sleeve 3. The angle scale 4 is fixedly arranged on the first measuring rod 1. The pointer 5 is fixedly arranged on the second measuring rod 2, and the pointer 5 is used for measuring the included angle between the first measuring rod 1 and the second measuring rod 2 in cooperation with the angle scale 4.
The measuring tool for the posterior spine surgery provided by the embodiment is characterized in that when in use, the locating sleeves 3 at the bottom ends of the first measuring rod 1 and the second measuring rod 2 are respectively sleeved on the pedicle screw seat, and the included angle between the first measuring rod 1 and the second measuring rod 2 is measured through the cooperation of the pointer 5 and the angle scale 4, so that the angle of vertebral body correction can be conveniently and rapidly determined in surgery, and whether the vertebral body correction is in place or not is determined after the correction. And the cooperation of the locating sleeve 3 and the pedicle screw base enables the measurement of the measuring tool for the posterior spinal surgery to be more accurate.
Alternatively, as shown in fig. 6 and 7, the positioning sleeve 3 is provided with a positioning opening 31, and the positioning opening 31 is used for accommodating the connecting rod. When the locating sleeve 3 is sleeved on the head of the pedicle screw to be measured, the locating opening 31 is clamped on the connecting rod, so that the accuracy of angle measurement between the first measuring rod 1 and the second measuring rod 2 is further improved.
Alternatively, as shown in fig. 1-7, the first measuring rod 1 includes a first connecting rod 11 and a first measuring rod main body 12 fixedly arranged at the bottom end of the first connecting rod 11, the second measuring rod 2 includes a second connecting rod 21 and a second measuring rod main body 22 fixedly arranged at the bottom end of the second connecting rod 21, the first connecting rod 11 and the second connecting rod 21 are both plate-shaped, the first measuring rod main body 12 and the second measuring rod main body 22 are columnar, the top end of the first connecting rod 11 is hinged with the top end of the second connecting rod 21, the angle dial 4 is fixedly arranged on the first connecting rod 11, and the pointer 5 is fixedly arranged on the second connecting rod 21. The plate-shaped first connecting rod 11 and the plate-shaped second connecting rod 21 can facilitate the hinging of the first connecting rod 11 and the second connecting rod 21, and the angle disc 4 and the pointer 5 are fixedly arranged. Specifically, the angle dial 4 is connected to the first connecting rod 11 by screws, and in this embodiment, the angle dial 4 is connected to the first connecting rod 11 by two screws. The columnar first measuring stick body 12 and second measuring stick body 22 are easy for a user to hold.
Further, as shown in fig. 6, a groove 10 is provided at the top end of the first measuring rod body 12, the bottom end of the first connecting rod 11 is inserted into the groove 10, and the first connecting rod 11 is connected with the first measuring rod body 12 by a screw. The top of the second measuring rod main body 22 is provided with a groove 10, the bottom end of the second connecting rod 21 is inserted into the groove 10 of the second measuring rod main body 22, and the second connecting rod 21 is connected with the second measuring rod main body 22 through a screw. Specifically, the first measuring rod main body 12 and the first connecting rod 11 and the second measuring rod main body 22 and the second connecting rod 21 are fixed by two screws, so that the first measuring rod main body 12 and the first connecting rod 11 and the second measuring rod main body 22 and the second connecting rod 21 are firmly and stably fixed, and no relative rotation occurs.
Optionally, as shown in fig. 2, 8, 9 and 10, the tool for measuring a posterior spine surgery provided in this embodiment further includes an adjusting bolt 6 and an adjusting nut 7. The top of the first measuring rod 1 is provided with a first connecting hole, the top of the second measuring rod 2 is provided with a second connecting hole, and the adjusting bolt 6 passes through the first connecting hole and the second connecting hole. The adjusting nut 7 is screwed to the threaded end of the adjusting bolt 6. The first measuring rod 1 and the second measuring rod 2 are hinged through the adjusting bolt 6, and when the spinal posterior surgery measuring tool is used, the adjusting nut 7 is rotated to loosen the first measuring rod 1 and the second measuring rod 2, so that the first measuring rod 1 and the second measuring rod 2 can rotate around the adjusting bolt 6.
Optionally, as shown in fig. 2, 8 and 11, the tool for measuring a posterior spine surgery provided in this embodiment further includes a spacer 8, where the spacer 8 is sleeved on the adjusting bolt 6 and is located between the first connecting rod 11 and the second connecting rod 21. By providing the spacer 8 between the first connecting rod 11 and the second connecting rod 21, a gap is formed between the first connecting rod 11 and the second connecting rod 21, so that the angle scale 4 can be fixed on one side of the first connecting rod 11 close to the second connecting rod 21, and when the first measuring rod 1 and the second measuring rod 2 relatively rotate, the angle scale 4 cannot interfere with the second connecting rod 21 due to the existence of the gap between the first connecting rod 11 and the second connecting rod 21.
Alternatively, as shown in fig. 1, the angle scale 4 is in a circular arc shape, the center of the angle scale 4 is positioned on the hinge shaft of the first measuring rod 1 and the second measuring rod 2, and the pointer 5 extends along the axial direction of the second measuring rod 2. Thereby the included angle between the first measuring rod 1 and the second measuring rod 2 can be conveniently distinguished by the pointing direction of the pointer 5.
Alternatively, as shown in fig. 1, a bar-shaped hole 41 is provided on the angle dial 4, and the pointer 5 is provided at the bar-shaped hole 41. Thereby enabling the pointer 5 to be brought closer to the angle score line on the angle dial 4.
Optionally, a gap is provided between the pointer 5 and the first measuring rod 1, and the gap is used for accommodating the angle scale 4, so that the bottom end of the pointer 5 can extend onto the angle scale 4, and a user can conveniently distinguish the angle pointed by the pointer 5.
The using principle of the measuring tool for the posterior spinal surgery is as follows:
when the spinal posterior surgery measuring tool is used, the adjusting nut 7 is loosened, the first measuring rod 1 and the second measuring rod 2 are loosened, the first measuring rod 1 and the second measuring rod 2 can rotate around the adjusting bolt 6, the locating sleeve 3 at the bottom ends of the first measuring rod 1 and the second measuring rod 2 is sleeved on the head of a pedicle screw to be measured, the locating opening 31 is clamped on the connecting rod, the adjusting nut 7 is screwed, the first measuring rod 1 and the second measuring rod 2 are fixed, and the angulation of the vertebral body can be known to be measured through the indication scale of the pointer 5 on the angle scale 4. A posterior spinal surgical measurement tool may take measurements across the segments. The vertebral body size difference of different patients can be measured by the posterior spine surgical measuring tools with different specifications.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. A posterior spinal surgical measurement tool, comprising:
the bottom end of the first measuring rod (1) is provided with a positioning sleeve (3), and the positioning sleeve (3) can be sleeved on the pedicle screw seat;
the top end of the second measuring rod (2) is hinged with the top end of the first measuring rod (1), and the positioning sleeve (3) is arranged at the bottom end of the second measuring rod (2);
the angle scale (4) is fixedly arranged on the first measuring rod (1);
the pointer (5) is fixedly arranged on the second measuring rod (2), and the pointer (5) is used for measuring the included angle between the first measuring rod (1) and the second measuring rod (2) in a matched mode with the angle scale (4).
2. The posterior spinal surgery measuring tool according to claim 1, wherein the first measuring rod (1) comprises a first connecting rod (11) and a first measuring rod main body (12) fixedly arranged at the bottom end of the first connecting rod (11), the second measuring rod (2) comprises a second connecting rod (21) and a second measuring rod main body (22) fixedly arranged at the bottom end of the second connecting rod (21), the first connecting rod (11) and the second connecting rod (21) are both plate-shaped, the first measuring rod main body (12) and the second measuring rod main body (22) are columnar, the top end of the first connecting rod (11) is hinged with the top end of the second connecting rod (21), the angle scale (4) is fixedly arranged on the first connecting rod (11), and the pointer (5) is fixedly arranged on the second connecting rod (21).
3. The posterior spinal surgery measuring tool according to claim 2, wherein a groove (10) is provided at the top end of the first measuring rod main body (12), the bottom end of the first connecting rod (11) is inserted into the groove (10), and the first connecting rod (11) is connected with the first measuring rod main body (12) through a screw;
the top of the second measuring rod main body (22) is provided with the groove (10), the bottom end of the second connecting rod (21) is inserted into the groove (10) of the second measuring rod main body (22), and the second connecting rod (21) is connected with the second measuring rod main body (22) through a screw.
4. The posterior spinal surgical measuring tool according to claim 2, characterized in that the angle disc (4) is connected to the first connecting rod (11) by means of screws.
5. The posterior spinal surgical measurement tool of claim 2, further comprising:
the adjusting bolt (6) is arranged at the top end of the first measuring rod (1), the top end of the second measuring rod (2) is provided with a second connecting hole, and the adjusting bolt (6) penetrates through the first connecting hole and the second connecting hole;
and the adjusting nut (7) is in threaded connection with the threaded end of the adjusting bolt (6).
6. The posterior spinal surgical measurement tool according to claim 5, further comprising a spacer (8), wherein the spacer (8) is sleeved on the adjusting bolt (6) and is located between the first connecting rod (11) and the second connecting rod (21).
7. The posterior spinal surgery measuring tool according to claim 1, wherein the angle dial (4) is arc-shaped, the center of the angle dial (4) is located on the hinge shaft of the first measuring rod (1) and the second measuring rod (2), and the pointer (5) extends along the axial direction of the second measuring rod (2).
8. The posterior spinal surgical measurement tool according to claim 7, characterized in that the angle disc (4) is provided with a bar-shaped hole (41), and the pointer (5) is arranged at the bar-shaped hole (41).
9. The posterior spinal surgical measuring tool according to claim 8, characterized in that a gap is provided between the pointer (5) and the first measuring rod (1), said gap being intended to receive an angle scale (4).
10. The posterior spinal surgical measurement tool according to any one of claims 1 to 9, characterized in that the positioning sleeve (3) is provided with a positioning opening (31), the positioning opening (31) being adapted to receive a connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223580665.3U CN219000522U (en) | 2022-12-30 | 2022-12-30 | Measuring tool for posterior spine surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223580665.3U CN219000522U (en) | 2022-12-30 | 2022-12-30 | Measuring tool for posterior spine surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219000522U true CN219000522U (en) | 2023-05-12 |
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ID=86235410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223580665.3U Active CN219000522U (en) | 2022-12-30 | 2022-12-30 | Measuring tool for posterior spine surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219000522U (en) |
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2022
- 2022-12-30 CN CN202223580665.3U patent/CN219000522U/en active Active
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