A fluoroscopic positioning frame for spinal surgery

Abstract

The present invention provides a fluoroscopic positioning frame for spinal surgery, comprising two first positioning columns, the two first positioning columns are fixed on both sides of the same section of spinal bone, the two first positioning columns are connected to the second positioning columns on both sides through a first adjustment mechanism, the second positioning columns on both sides are connected through a second adjustment mechanism to form a positioning frame, the first adjustment mechanism comprises a first adjustment column, a first adjustment pin and a second adjustment pin, the first adjustment column is threadedly connected between the first adjustment pin and the second adjustment pin, the first adjustment pin is hinged on the side of the first positioning column, the second adjustment pin is hinged on the side of the second positioning column, the second adjustment mechanism comprises a second adjustment column and two third adjustment pins, the second adjustment column is threadedly connected between the two third adjustment pins, and the two third adjustment pins are respectively hinged on the sides of the two second positioning columns; the present invention installs the fluoroscopic positioning frame during spinal surgery, which is convenient for installation according to the patient's spinal position, the installation position is visible, and adjustment is convenient, thereby improving the accuracy of spinal surgery.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a fluoroscopic positioning frame for spinal surgery. Background Art

[0002] The spine is the most important group of bones in the human skeleton. The upper end of the spine supports the skull, the lower end is connected to the hip bone, the middle end is attached to the ribs, and it serves as the posterior wall of the thorax, abdomen and pelvis. It has the functions of supporting the trunk, protecting the internal organs, protecting the spinal cord and performing movements. Therefore, during major spinal surgeries such as spinal repair surgery and spinal correction surgery, a positioning frame is required to position and correct multiple sections of the spine. The fixed spine must be convenient for doctors to mark and observe to avoid incorrect positioning of the spine.

[0003] The patent application number is CN201720991151.7, and its content is: The utility model relates to a spinal fluoroscopic positioning frame, including a longitudinal beam, a cross bar and a cross bar seat. The cross section of the longitudinal beam is rectangular, and the cross bar middle horizontal part has a circular cross section. The three cross bar seats are respectively arranged on the front, middle and rear parts of the longitudinal beam, and the three cross bars are respectively installed in the cross bar seats in sequence; through this technical solution, a "king"-shaped positioning frame is designed, which can be conveniently mounted on the patient's back during fluoroscopic positioning. The upper and lower parts or left and right parts of the positioning frame have obviously different distinguishing marking points during fluoroscopy, which is easy to distinguish the position. It is easy to operate in application, easy to use, easy to store, accurate in positioning, and improves the surgical positioning effect, effectively shortens the operation time, reduces the patient's pain and reduces the patient's wound.

[0004] The above patent sets the positioning frame as a transparent positioning frame to improve the visibility and positioning effect of the operation. However, the above patent requires the cross bars to be clamped on both sides of the patient's body for fixation, which is inconvenient to use. The positioning frame is easily touched by the outside, affecting the positioning, which is not conducive to the doctor's operation. In addition, the positioning frame has a large structure and a high manufacturing cost. Summary of the invention

[0005] The present invention aims to solve the problem that the existing spinal surgery positioning frame cannot observe the accuracy of positioning, resulting in wrong positioning during spinal surgery, and for this purpose provides a fluoroscopic positioning frame for spinal surgery.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] A fluoroscopic positioning frame for spinal surgery includes two first positioning columns, the two first positioning columns are fixed on both sides of the same section of spinal bone, the two first positioning columns are connected to the second positioning columns on both sides through a first adjustment mechanism, the second positioning columns on both sides are connected through a second adjustment mechanism to form a positioning frame, the first adjustment mechanism includes a first adjustment column, a first adjustment pin and a second adjustment pin, the first adjustment column is threadedly connected between the first adjustment pin and the second adjustment pin, the first adjustment pin is hinged on the side of the first positioning column, the second adjustment pin is hinged on the side of the second positioning column, the second adjustment mechanism includes a second adjustment column and two third adjustment pins, the second adjustment column is threadedly connected between the two third adjustment pins, and the two third adjustment pins are respectively hinged on the sides of the two second positioning columns.

[0008] Preferably, the first positioning column and the second positioning column are both cylindrical structures.

[0009] Preferably, the positioning frame is a rectangular positioning frame, and the positioning frame comprises at least two first positioning columns and four second positioning columns.

[0010] Preferably, two first connecting ears are provided on the side of the first positioning column, the two first connecting ears are symmetrically installed on the side of the first positioning column at 180 degrees, and the first adjusting pins are hinged on the first connecting ears.

[0011] Preferably, two second connecting ears are arranged on the side of the second positioning column, and the two second connecting ears are symmetrically installed at 90 degrees on the side of the second positioning column, and the second adjustment nail and the third adjustment nail are respectively hinged on the two second connecting ears to form a right-angle structure.

[0012] Preferably, the first adjustment column and the second adjustment column are both axially provided with anti-slip grooves on their sides.

[0013] Preferably, the first positioning post, the second positioning post, the first adjustment mechanism and the second adjustment mechanism are all made of medical stainless steel.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention uses at least two first positioning columns and four second positioning columns, and cooperates with the first adjustment mechanism and the second adjustment pin to install a rectangular positioning frame, so that the overall length of the positioning frame can be increased according to the number of spinal segments by increasing the number of first positioning columns and the number of first adjustment mechanisms to achieve the length of the spinal positioning frame, and when the positioning frame is fixed on the spine, the first adjustment pin and the second adjustment pin on the first adjustment mechanism can be adjusted in the length direction to achieve the length adjustment of the two sides of the positioning frame, and the third adjustment pin on the second adjustment mechanism can be adjusted in the width direction to achieve the width adjustment of the two sides of the positioning frame. It is flexible to use, directly fixed on the spine, does not affect the surgery of medical staff, has strong adaptability, can meet the needs of spinal surgery for a variety of people, and avoids the problem of inability to match models due to different widths and lengths of the spine of each person;

[0016] 2. In the present invention, the first positioning column and the second positioning column directly realize perspective through the cylindrical tube structure. Medical staff can directly place the positioning column at the correct position on the patient's spine and then fix it with screws, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 A top view of an embodiment of the present invention;

[0020] Figure 3 It is a front view of an embodiment of the present invention;

[0021] Figure 4 It is a left side view of an embodiment of the present invention;

[0022] The embodiment of the present invention mainly includes the following element symbols:

[0023] The first positioning column-1, the first connecting ear-101, the second positioning column-2, the second connecting ear-201, the first adjustment mechanism-3, the first adjustment column-301, the first adjustment pin-302, the second adjustment pin-303, the second adjustment mechanism-4, the second adjustment column-401, the third adjustment pin-402, the anti-slip groove-5, and the positioning frame-6. DETAILED DESCRIPTION

[0024] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. Example 1

[0025] like Figures 1 to 4 As shown, a fluoroscopic positioning frame for spinal surgery includes two first positioning columns 1, which are fixed on both sides of the same segment of spinal bone, and are connected to second positioning columns 2 on both sides of the two first positioning columns 1 through a first adjustment mechanism 3. The second positioning columns 2 on both sides are connected to form a positioning frame 6 through a second adjustment mechanism 4. The first adjustment mechanism 3 includes a first adjustment column 301, a first adjustment pin 302 and a second adjustment pin 303. The first adjustment column 301 is threadedly connected between the first adjustment pin 302 and the second adjustment pin 303. The first adjustment pin 302 is hinged on the side of the first positioning column 1, and the second adjustment pin 303 is hinged on the side of the second positioning column 2. The second adjustment mechanism 4 includes a second adjustment column 401 and two third adjustment pins 402. The second adjustment column 401 is threadedly connected between the two third adjustment pins 402, and the two third adjustment pins 402 are respectively hinged on the sides of the two second positioning columns 2.

[0026] The first positioning column 1 and the second positioning column 2 are both cylindrical tube structures. In the present invention, the first positioning column 1 and the second positioning column 2 directly achieve perspective through the cylindrical tube structure. Medical staff can place the positioning column directly at the correct position on the patient's spine and then fix it with screws, which is easy to use; the positioning frame 6 is a rectangular positioning frame 6, and the positioning frame 6 includes at least two first positioning columns 1 and four second positioning columns 2.

[0027] Two first connecting ears 101 are arranged on the side of the first positioning column 1 . The two first connecting ears 101 are symmetrically installed at 180° on the side of the first positioning column 1 . The first adjusting pins 302 are hinged on the first connecting ears 101 .

[0028] Two second connecting ears 201 are arranged on the side of the second positioning column 2. The two second connecting ears 201 are symmetrically installed at 90 degrees on the side of the second positioning column 2. The second adjustment nail 303 and the third adjustment nail 402 are respectively hinged on the two second connecting ears 201 to form a right-angle structure.

[0029] The present invention uses at least two first positioning columns 1 and four second positioning columns 2, which cooperate with the first adjustment mechanism 3 and the second adjustment nail 303 to install a rectangular positioning frame 6, so that the overall length of the positioning frame 6 can be increased according to the number of spinal segments by increasing the number of first positioning columns 1 and the number of first adjustment mechanisms 3 to achieve the length of the spinal positioning frame 6, and when the positioning frame 6 is fixed on the spine, the first adjustment nail 302 and the second adjustment nail 303 on the first adjustment mechanism 3 can be adjusted in the length direction to achieve the length adjustment of the two sides of the positioning frame 6, and the third adjustment nail 402 on the second adjustment mechanism 4 can be adjusted in the width direction to achieve the width adjustment of the two sides of the positioning frame 6. It is flexible to use and can be directly fixed on the spine without affecting the surgery of medical staff. It has strong adaptability and can meet the needs of spinal surgery for a variety of people, avoiding the problem of inability to match models due to the different widths and lengths of each person's spine. During installation, the positioning frame 6 is directly installed longitudinally on the spine, and both sides of the spine are fixed in sequence by the second positioning column, the first positioning column, and the second positioning column.

[0030] The first adjustment column 301 and the second adjustment column 401 are both axially provided with anti-slip grooves 5 on their sides, which facilitate slight adjustment of the first adjustment mechanism 3 and the second adjustment mechanism 4 after installation and fixation; the first positioning column 1, the second positioning column 2, the first adjustment mechanism 3 and the second adjustment mechanism 4 are all made of medical stainless steel.

[0031] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A fluoroscopic positioning frame for spinal surgery, comprising two first positioning columns (1), wherein the two first positioning columns (1) are fixed on both sides of the same segment of spinal bone, characterized in that: The two first positioning columns (1) are connected to the second positioning columns (2) on both sides through the first adjustment mechanism (3), and the second positioning columns (2) on both sides are connected through the second adjustment mechanism (4) to form a positioning frame (6). The first adjustment mechanism (3) comprises a first adjustment column (301), a first adjustment pin (302) and a second adjustment pin (303). The first adjustment column (301) is threadedly connected between the first adjustment pin (302) and the second adjustment pin (303). The first adjustment pin (302) is hinged on the side of the first positioning column (1), and the second adjustment pin (303) is hinged on the side of the second positioning column (2). The second adjustment mechanism (4) comprises a second adjustment column (401) and two third adjustment pins (402). The second adjustment column (401) is threadedly connected between the two third adjustment pins (402), and the two third adjustment pins (402) are respectively hinged on the sides of the two second positioning columns (2).

2. The perspective positioning frame according to claim 1, characterized in that: The first positioning column (1) and the second positioning column (2) are both cylindrical structures.

3. The perspective positioning frame according to claim 2, characterized in that: The positioning frame (6) is a rectangular positioning frame (6), and the positioning frame (6) comprises at least two first positioning columns (1) and four second positioning columns (2).

4. The perspective positioning frame according to claim 3, characterized in that: Two first connecting ears (101) are arranged on the side of the first positioning column (1), and the two first connecting ears (101) are symmetrically installed at 180 degrees on the side of the first positioning column (1), and the first adjustment pins (302) are hinged on the first connecting ears (101).

5. The perspective positioning frame according to claim 4, characterized in that: Two second connecting ears (201) are arranged on the side of the second positioning column (2), and the two second connecting ears (201) are symmetrically installed at 90 degrees on the side of the second positioning column (2), and the second adjustment pin (303) and the third adjustment pin (402) are respectively hinged on the two second connecting ears (201) to form a right-angle structure.

6. The perspective positioning frame according to claim 5, characterized in that: Anti-slip grooves (5) are axially arranged on the side surfaces of the first adjustment column (301) and the second adjustment column (401).

7. The perspective positioning frame according to claim 6, characterized in that: The first positioning column (1), the second positioning column (2), the first adjustment mechanism (3) and the second adjustment mechanism (4) are all made of medical stainless steel.

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