Spine segment and vertebral pedicle body surface positioning device

Abstract

The utility model discloses a spine segment and vertebral pedicle body surface positioning device which comprises a frame, the frame is provided with a grid, the grid is composed of a plurality of transverse developing lines and longitudinal developing lines, developing marks are arranged in the grid, a measurer is installed at the right-angle position of the frame, and the measurer is connected with the frame. The measuring rod of the measurer rotates around the measurer; according to the utility model, accurate positioning can be realized for spinal surgeries such as percutaneous thoracolumbar plasty, thoracolumbar internal fixation and percutaneous foramen intervertebrale endoscope, the accuracy of spinal surgery lesion excision and the safety of screw rod and fusion cage placement can be improved, the surgery time is shortened, the cost of a patient is reduced, the X-ray fluoroscopy frequency and the radiation quantity of the patient and medical personnel are reduced, and the working efficiency is improved. And safety is improved for spine operation planning, cone forming, lesion excision, nail rod installation and fusion cage arrangement.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a spinal segment and pedicle surface positioning device. Background Art

[0002] With the application of X-ray, CT and other equipment in percutaneous minimally invasive surgery fluoroscopic monitoring, the accuracy and safety of puncture positioning have been effectively improved. Since single-arm or C-arm can perform real-time fluoroscopy, it is easy to operate and has high image quality, especially in spinal surgeries such as vertebroplasty and kyphoplasty, it has been widely used.

[0003] When using a C-arm, it is necessary to quickly and accurately locate the spinal segments and pedicles. If the positioning is repeated at a high frequency before and during surgery, doctors and patients will be exposed to more fluoroscopic radiation, which increases the radiation dose for doctors and patients and poses potential health risks to the body. In order to achieve surface positioning, medical staff use Kirschner wires to make a simple locator, which is in the shape of a matrix frame. Since the locator needs to be adjusted and moved according to the position and angle of the spinal segments and pedicles during positioning, the simple locator made with Kirschner wires does not have the above functions and cannot achieve the purpose of effective, accurate and rapid positioning. Overall, the above positioning method is relatively old-fashioned, requires multiple positioning, is not accurate enough, does not meet the standard positioning requirements, is entirely manual, has large errors, uses wasteful consumables, is disposable and cannot be reused, and doctors have reported poor results. Utility Model Content

[0004] The utility model proposes a spinal segment and pedicle surface positioning device, which has functions such as fine adjustment and activity, can meet the needs of adjustment during the positioning process, achieve the purposes of rapid and accurate positioning, marking, etc., shorten the operation time, and reduce the frequency of repeated positioning.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A spinal segment and pedicle surface positioning device comprises a frame, the frame is provided with a grid, the grid is composed of a plurality of transverse developing lines and longitudinal developing lines, developing marks are arranged in the grid, a measuring device is installed at a right angle to the frame, and the measuring rod of the measuring device rotates around the measuring device.

[0007] Furthermore, the development mark is arranged at the intersection of the horizontal development line and the longitudinal development line or in the grid.

[0008] Furthermore, the developing mark adopts a metal positioning mark of numbers, letters, or geometric shapes.

[0009] Furthermore, a measuring device is installed at at least one right angle in the frame, and the measuring device is a 360-degree wheel-shaped protractor.

[0010] Furthermore, the measuring rod adopts a telescopic rod, which can be extended or shortened according to positioning needs.

[0011] Furthermore, the transverse developing line adopts a tube body, the developing line is wrapped on the surface of the tube body, a transverse moving groove is opened on the tube wall, a sliding block is provided in the tube body, the sliding block is connected to the developing mark, and the developing mark moves transversely along the moving groove through the sliding block.

[0012] The following beneficial effects can be obtained through the above technical solution:

[0013] The utility model has high positioning accuracy, is easy to operate, economical and practical, can be sterilized, and can be used before, during and after surgery to help doctors accurately locate the spine and pedicles, thereby reducing the number of X-ray radiation exposures. Its small size and lightweight design make it easy for doctors to use during surgery.

[0014] The utility model can accurately position spinal surgeries such as thoracolumbar internal fixation and percutaneous transforaminal endoscopic lumbar disc, improve the accuracy of spinal lesion resection, the safety of nail rod and fusion device placement, shorten the operation time, reduce patient costs, reduce the number of X-ray fluoroscopy times and the radiation dose of patients and medical staff, and improve the safety of spinal surgery planning, lesion resection, nail rod installation, and fusion device placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the relationship diagram between the grille and the frame.

[0016] Figure 2 It is a schematic diagram of embodiment 1 of the table positioning device.

[0017] Figure 3 It is a schematic diagram of embodiment 2 of the table positioning device.

[0018] Figure 4 It is a schematic diagram of embodiment 3 of the table positioning device.

[0019] Figure 5 This is a diagram of the internal structure of the lateral developing line in Example 3.

[0020] Figure 6 It is a top view of the horizontal development line in Example 3.

[0021] In the figure:

[0022] In the figure: 1, frame; 2, horizontal developing line; 3, longitudinal developing line; 4, developing mark; 5, measuring device; 6, measuring rod; 21, tube body; 22, sliding block, 23, moving groove. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] like Figure 1-6 As shown, a spinal segment and pedicle surface positioning device, the surface positioning device comprises a frame 1, the frame 1 is provided with a grid, the grid is composed of a plurality of transverse imaging lines 2 and longitudinal imaging lines 3, and imaging marks 4 are arranged in the grid (see Figure 1 As shown), a measuring device 5 is installed at a right angle to the frame 1, and a measuring rod 6 of the measuring device 5 rotates around the measuring device.

[0025] Embodiment 1:

[0026] Figure 2 As shown, a metal frame is used. The metal frame is square and has a length of 13 cm. A mesh grid composed of horizontal developing lines 2 and vertical developing lines 3 is arranged inside the metal frame. There are 11 horizontal developing lines 2 and 11 vertical developing lines 3 to form a square mesh grid with a length of 10 cm. The length of the small square grid formed is 1 cm. 360-degree wheel protractors are respectively installed at the four top corners of the metal frame. A telescopic measuring rod is installed on the 360-degree wheel protractor. Metal positioning marks of geometric shapes are arranged in the mesh grid.

[0027] Embodiment 2:

[0028] Figure 3 As shown, a transparent acrylic frame is used, and the frame is also square with a length and width of 12 cm. A mesh grid composed of horizontal developing lines 2 and vertical developing lines 3 is provided in the metal frame. There are 11 horizontal developing lines 2 and 11 vertical developing lines 3 to form a square mesh grid with a length and width of 10 cm. Metal positioning marks of letters are arranged in the mesh grid. In this embodiment, a 360-degree wheel protractor is installed at the lower left corner of the frame, and a telescopic measuring rod is installed on the 360-degree wheel protractor. The maximum length of the telescopic measuring rod is 15 cm. The protractor and the measuring rod are made of transparent acrylic material.

[0029] Embodiment 3:

[0030] Figure 4-6As shown, the length of the frame is 16cm and the width is 12cm, and the length of the grid therein is 12cm and the width is 8cm. Specifically, the length of the horizontal developing line is 12cm and the width of the vertical developing line is 8cm. The number of horizontal developing lines and vertical developing lines can be determined according to actual needs to change the density of the grid. A 360-degree wheel-shaped protractor is installed at the lower left corner of the frame, and a telescopic measuring rod is installed on the 360-degree wheel-shaped protractor. In this embodiment, the horizontal developing line is relatively thick, using a thick tube body of 3mm, and the vertical developing line uses a 1.5mm thin rod. The surface of the tube body of the horizontal developing line wraps the developing line, and a horizontal moving groove 23 is opened on the tube wall. A sliding block 22 is provided in the tube body, and the sliding block is connected to the developing mark 4. The developing mark 4 moves horizontally along the moving groove through the sliding block. Secondly, the horizontal developing line and the vertical developing line are both movably connected, and the grid size can be adjusted, that is, the horizontal developing line can move up and down along the vertical developing line.

[0031] In each of the above embodiments, hydrogel may be applied to the surface of the material to increase the viscosity of the surface, which is beneficial for fixing the positioning device, preventing the positioner from shifting, and providing positioning accuracy.

[0032] In each of the above embodiments, the frame serves as an external support, and the frame is an internally positioned square mesh structure used to divide the spinal segments and pedicle structures into different areas for regional marking. The positioning mark is composed of English letters or metal heads. After the C-arm is positioned, the specific surgical position of the spine and pedicle can be seen, and the skin is marked with a marker. The frame is provided with a wheel-shaped measuring device, and the measuring rod is established on the wheel-shaped measuring device. According to the above-mentioned frame positioning area, the wheel-shaped measuring device can be rotated, and the measuring rod can be used to extend and swing the frame positioning position to find the positioning position in the frame, and the spine and pedicle surgical positions can be double-precisely positioned again.

[0033] The above are all preferred implementations of the present invention. For ordinary technicians in this technical field, without departing from the principle of the present invention, various equivalent modifications to the present invention belong to the protection scope of the claims attached to this application.

Claims

1. A spinal segment and pedicle surface positioning device, characterized in that: The body surface positioning device comprises a frame (1), wherein the frame (1) is provided with a grid, wherein the grid is composed of a plurality of transverse developing lines (2) and longitudinal developing lines (3), and developing marks (4) are arranged in the grid. A measuring device (5) is installed at a right angle to the frame (1), and a measuring rod (6) of the measuring device (5) rotates around the measuring device.

2. A spinal segment and pedicle surface positioning device according to claim 1, characterized in that: The development mark (4) is arranged at the intersection of the transverse development line (2) and the longitudinal development line (3) or in a grid.

3. A spinal segment and pedicle surface positioning device according to claim 1 or 2, characterized in that: The developing mark (4) adopts a metal positioning mark of numbers, letters or geometric shapes.

4. A spinal segment and pedicle surface positioning device according to claim 1, characterized in that: A measuring device (5) is installed at at least one right angle in the frame (1), and the measuring device (5) is a 360-degree wheel-shaped protractor.

5. A spinal segment and pedicle surface positioning device according to claim 1, characterized in that: The measuring rod (6) is a telescopic rod.

6. A spinal segment and pedicle surface positioning device according to claim 1, characterized in that: The transverse developing line (2) adopts a tube body (21), the developing line is wrapped on the surface of the tube body, a transverse moving groove (23) is opened on the tube wall, a sliding block (22) is arranged in the tube body, the sliding block is connected to the developing mark (4), and the developing mark (4) moves transversely along the moving groove through the sliding block.

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