Locator for lumbar intervertebral disc radiofrequency ablation

Abstract

The utility model provides a locator for lumbar intervertebral disc radiofrequency ablation. The locator comprises a longitudinal supporting rod, a transverse supporting rod, a suction cup, a moving rod, a moving seat, a needle seat and a ruler. The longitudinal supporting rod and the transverse supporting rod are fixedly connected in a cross shape, and suckers are arranged at the ends of the longitudinal supporting rod and the transverse supporting rod. The middle of the moving rod is arranged on the longitudinal supporting rod in a sliding mode, the moving rod is perpendicular to the longitudinal supporting rod, and a first locking mechanism playing a fixing role is arranged on the moving rod. The left side and the right side of the movable rod are each provided with a movable base in a sliding mode, and needle bases are arranged on the movable bases. A second locking mechanism playing a fixing role is arranged on the movable seat; and one end of the moving rod is provided with a vertically arranged scale. According to the positioner, the positioning direction of the puncture needle can be adjusted from multiple angles and the position away from the center, and the positioning accuracy is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a locator for lumbar intervertebral disc radiofrequency ablation. Background Art

[0002] Lumbar disc herniation (LDH) is a highly prevalent degenerative spinal disease. In recent years, the age of onset has tended to be younger, with L4 / L5 and L5 / S1 disc herniations being the most common, accounting for approximately 95% of all LDH cases. For patients with early-stage LDH, percutaneous minimally invasive surgery, especially minimally invasive radiofrequency ablation of the intervertebral disc (PIRFT), has been proven to be an effective minimally invasive treatment alternative to traditional discectomy. However, physicians who are not adequately trained may face potential risks such as high surgical failure rates, residual disc herniation, and nerve root compression when performing PIRFT. In addition, the lack of an intuitive 3D field of view during the puncture operation may increase the risk of accidental injury to important soft tissues such as nerves, dura mater, and blood vessels. Utility Model Content

[0003] In view of this, the present invention aims to provide a locator for lumbar intervertebral disc radiofrequency ablation, which can assist doctors in performing auxiliary positioning for lumbar puncture surgery.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0005] The cam is provided with a first locking mechanism for fixing the movable part and a second locking mechanism for fixing the movable part; the cam is provided with a second locking mechanism for fixing the movable part and the second locking mechanism for fixing the movable part; the cam is provided with a second locking mechanism for fixing the movable part and the second locking mechanism for fixing the movable part; the cam is provided with a second locking mechanism for fixing the movable part and the second locking mechanism for fixing the movable part

[0006] Furthermore, a slide rail is provided on the longitudinal support rod along its length direction, the slider is slidably arranged on the slide rail, and the moving rod is installed on the slider through a connecting column.

[0007] Furthermore, the first locking mechanism includes a first locking bolt, which passes through the moving rod, connecting column and slider from top to bottom in sequence and rests on the longitudinal support rod. The moving rod, connecting column and slider are fixedly connected, and the first locking bolt is threadedly connected to the moving rod, connecting column and slider.

[0008] Furthermore, distance scales are provided on both the left and right sides of the moving rod.

[0009] Furthermore, the second locking mechanism includes a second locking bolt, which is threadedly connected to the moving seat, and the end of the second locking bolt is against the moving rod.

[0010] Furthermore, the longitudinal support rod and the transverse support rod are an integrally formed cross-shaped structure, a slide rail is provided on the side wall of the longitudinal support rod, and a slit is provided at the connection between the transverse support rod and the longitudinal support rod to facilitate the movement of the slider.

[0011] Furthermore, the angle disk is fan-shaped.

[0012] Furthermore, a longitudinal scale is provided on the longitudinal support rod.

[0013] Compared with the existing technology, the locator for lumbar intervertebral disc radiofrequency ablation described in the present invention has the following advantages:

[0014] The locator for lumbar intervertebral disc radiofrequency ablation described in the utility model is fixed to the human body when in use. The approximate position of puncture is adjusted by adjusting the slider and the movable seat, and the direction of the puncture needle is adjusted by adjusting the positioning block. The positioning direction of the puncture needle can be adjusted from multiple angles and positions from the center to ensure the accuracy of positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic structural diagram of a locator for lumbar intervertebral disc radiofrequency ablation according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic structural diagram of the needle seat according to an embodiment of the present utility model;

[0018] Figure 3 This is a diagram of the usage status of the locator for lumbar intervertebral disc radiofrequency ablation according to an embodiment of the present utility model.

[0019] Description of reference numerals:

[0020] 1. Longitudinal support rod; 11. Slide rail; 12. Longitudinal scale; 2. Transverse support rod; 3. Suction cup; 4. Slider; 5. Connecting column; 6. Moving rod; 61. Transverse scale; 62. First locking bolt; 7. Moving seat; 71. Second locking bolt; 8. Needle seat; 81. Angle plate; 82. Arc hole; 83. Positioning block; 84. Rotating shaft; 85. Guide rod; 86. Locking nut; 87. Angle scale; 88. Puncture needle; 9. Ruler. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] like Figure 1-2As shown, a positioner for lumbar intervertebral disc radiofrequency ablation comprises a longitudinal support rod 1, a transverse support rod 2, a suction cup 3, a mobile rod 6, a mobile seat 7, a needle seat 8 and a ruler 9; the longitudinal support rod 1 and the transverse support rod 2 are fixedly connected in a cross shape, and the ends of the longitudinal support rod 1 and the transverse support rod 2 are provided with a suction cup 3; the middle part of the mobile rod 6 is slidably arranged on the longitudinal support rod 1, and the mobile rod 6 and the longitudinal support rod 1 are perpendicular to each other, and the mobile rod 6 is provided with a first locking mechanism for fixing; a mobile seat 7 is slidably provided on the left and right sides of the mobile rod 6, and a needle seat 8 is provided on the mobile seat 7, and the needle seat 8 comprises an angle disk 81 and a positioning block 83, and the angle disk 81 is fixed It is fixed on the movable seat 7, and an arc-shaped hole 82 is provided on the angle disk 81. One end of the positioning block 83 is rotatably set on the angle disk 81 through a rotating shaft 84. The other end of the positioning block 83 is provided with a guide rod 85, which is inserted into the arc-shaped hole 82. A locking nut is also screwed on the guide rod 85. The positioning block 83 is also provided with a through hole for inserting the puncture needle 88. An angle scale 87 is provided on the angle disk 81, and the inclination angle of the puncture needle can be adjusted according to the scale; a second locking mechanism is provided on the movable seat 7 for fixing; one end of the movable rod 6 is provided with a vertically arranged ruler 9, which can be used to measure the depth of puncture. The ruler can be developed under radiofluoroscopy to display the scale.

[0026] Exemplarily, a slide rail 11 is provided on the longitudinal support rod 1 along its length direction, the slider 4 is slidably set on the slide rail 11, and the moving rod 6 is installed on the slider 4 through the connecting column 5.

[0027] Specifically, the first locking mechanism includes a first locking bolt 62, which passes through the moving rod 6, the connecting column 5 and the slider 4 from top to bottom in sequence, and rests on the longitudinal support rod 1. The moving rod 6, the connecting column 5 and the slider 4 are fixedly connected, and the first locking bolt 62 is threadedly connected to the moving rod 6, the connecting column 5 and the slider 4.

[0028] For example, horizontal scales 61 are provided on both the left and right sides of the moving rod 6 , and the horizontal scales can help doctors judge the distance moved by the moving seat.

[0029] Illustratively, the second locking mechanism includes a second locking bolt 71 . The second locking bolt 71 is threadedly connected to the moving seat 7 , and an end of the second locking bolt 71 abuts against the moving rod 6 .

[0030] Exemplarily, the longitudinal support rod 1 and the transverse support rod 2 are an integrally formed cross-shaped structure, a slide rail 11 is provided on the side wall of the longitudinal support rod 1, and a slit is provided at the connection between the transverse support rod 2 and the longitudinal support rod 1 to facilitate the movement of the slider 4.

[0031] Exemplarily, the angle disc 81 is sector-shaped.

[0032] For example, a longitudinal scale 12 is provided on the longitudinal support rod, and the longitudinal scale can help doctors judge the distance the moving rod moves.

[0033] The usage is as follows, the usage status is as follows Figure 3 :

[0034] 1. Determine the puncture site according to the patient's condition, and then attach the suction cup to the back of the body to fix the longitudinal support rod and the transverse support rod;

[0035] 2. Adjust the moving rod and moving seat to the appropriate position and lock them;

[0036] 3. Insert the puncture needle into the positioning block, adjust the inclination angle of the puncture needle and fix it with the locking nut.

[0037] 4. The ruler is used to measure the depth of puncture.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A locator for lumbar intervertebral disc radiofrequency ablation, characterized by: The cam is provided with a first locking mechanism for fixing the movable frame, and a second locking mechanism for fixing the movable frame is provided with a second locking mechanism for fixing the movable frame.

2. The locator for lumbar intervertebral disc radiofrequency ablation according to claim 1, characterized in that: A slide rail is provided on the longitudinal support rod along its length direction, a slider is slidably arranged on the slide rail, and the moving rod is installed on the slider through a connecting column.

3. The locator for lumbar intervertebral disc radiofrequency ablation according to claim 2, characterized in that: The first locking mechanism includes a first locking bolt, which passes through the moving rod, the connecting column and the slider from top to bottom in sequence and rests on the longitudinal support rod. The moving rod, the connecting column and the slider are fixedly connected, and the first locking bolt is threadedly connected to the moving rod, the connecting column and the slider.

4. The locator for lumbar intervertebral disc radiofrequency ablation according to claim 1, characterized in that: There are horizontal scales on both the left and right sides of the moving rod.

5. The locator for lumbar intervertebral disc radiofrequency ablation according to claim 1, characterized in that: The second locking mechanism comprises a second locking bolt, which is threadedly connected to the moving seat, and an end of the second locking bolt abuts against the moving rod.

6. The locator for lumbar intervertebral disc radiofrequency ablation according to claim 1, characterized in that: The longitudinal support rod and the transverse support rod are an integrally formed cross-shaped structure. Slide rails are provided on the side walls of the longitudinal support rod, and a slit is provided at the connection between the transverse support rod and the longitudinal support rod to facilitate the movement of the slider.

7. The locator for lumbar intervertebral disc radiofrequency ablation according to claim 1, characterized in that: The angle disk is fan-shaped.

8. The locator for lumbar intervertebral disc radiofrequency ablation according to claim 1, characterized in that: A longitudinal scale is provided on the longitudinal support rod.

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