Positioning device

Abstract

The positioning device comprises a positioning frame, a movable rod assembly and a handle, and a sliding groove is formed in the positioning frame; the movable rod assembly is movably connected with the positioning frame and comprises at least one first movable rod and at least one second movable rod, the first movable rod extends in the first direction, the second movable rod extends in the second direction, and at least part of the first movable rod is located in the sliding groove and can slide in the second direction; at least part of the second movable rod is located in the sliding groove and can slide in the first direction, and the first direction intersects with the second direction. And at least two handles extend into the sliding chute and are respectively connected with the first movable rod and the second movable rod.

Description

Technical Field

[0001] This application belongs to the field of surgical instrument technology, and in particular relates to positioning devices. Background Technology

[0002] In spinal surgery, C-arm imaging of the patient's spine is typically used to plan the insertion points for screw placement. The actual insertion points are then located on the body surface based on these images. Traditionally, locating the insertion points on the body surface during C-arm imaging is time-consuming and may require multiple fluoroscopic examinations to obtain a more precise insertion point. This not only affects the surgical process but also the radiation dose from repeated fluoroscopy can have adverse effects on both the patient and the surgeon. Utility Model Content

[0003] This application provides a positioning device designed to improve positioning speed.

[0004] This application provides a positioning device, including a positioning frame, a movable rod assembly, and handles. The positioning frame has a sliding groove inside. The movable rod assembly is movably connected to the positioning frame and includes at least one first movable rod and at least one second movable rod. The first movable rod extends along a first direction, and the second movable rod extends along a second direction. At least a portion of the first movable rod is located in the sliding groove and can slide along the second direction, and at least a portion of the second movable rod is located in the sliding groove and can slide along the first direction. The first direction and the second direction intersect. At least two handles extend into the sliding groove and are respectively connected to the first movable rod and the second movable rod.

[0005] According to an embodiment of the first aspect of this application, the positioning frame includes two first frame rods and two second frame rods, which are alternately connected end to end. The first frame rods extend along a first direction and the two first frame rods are spaced apart along a second direction. The second frame rods extend along the second direction and the two second frame rods are spaced apart along the first direction. Each of the first frame rods and the second frame rods is provided with a sliding groove. The two ends of the first movable rod are respectively located in the sliding grooves of the two second frame rods, and the two ends of the second movable rod are respectively located in the sliding grooves of the two first frame rods.

[0006] According to an embodiment of the first aspect of this application, the slide includes a first groove and a second groove that are interconnected. The first groove extends along a first direction or a second direction, and the second groove extends along a third direction. The first direction, the second direction, and the third direction intersect each other. At least a portion of the handle extends from the second groove into the slide and is connected to a first movable rod or a second movable rod that extends from the first groove into the slide.

[0007] According to an embodiment of the first aspect of this application, the second groove includes a first segment and a second segment. The cross-sectional area of ​​the first segment in the third direction remains unchanged, and the cross-sectional area of ​​the second segment in the third direction gradually increases in the direction away from the first segment. The handle includes a first part and a second part arranged sequentially in the third direction. The cross-sectional area of ​​the first part in the third direction remains unchanged, and the cross-sectional area of ​​the second part in the third direction gradually increases in the direction away from the first part. At least a portion of the second part is located within the second segment, and at least a portion of the first part is located within the first segment and extends out of the second groove from the opening of the first segment away from the second segment.

[0008] According to an embodiment of the first aspect of this application, it further includes: a base connected to a positioning frame, the base including a base frame and a grid, the grid including a first fixing rod and a second fixing rod, both the first fixing rod and the second fixing rod being connected to the base frame, at least two first fixing rods extending along a first direction and spaced apart along a second direction, and at least two second fixing rods extending along a second direction and spaced apart along the first direction.

[0009] According to an embodiment of the first aspect of this application, a scale is provided on the base frame and / or positioning frame.

[0010] According to an embodiment of the first aspect of this application, a connecting portion is provided on the side of the base frame away from the positioning frame.

[0011] According to an embodiment of the first aspect of this application, an indicator is provided on one side of the base frame in a first direction, or the indicator is provided on one side of the base frame in a second direction.

[0012] According to the embodiment of the first aspect of this application, there are multiple first movable rods and multiple second movable rods.

[0013] According to an embodiment of the first aspect of this application, the first movable rod and the second movable rod are spaced apart along a third direction, and the first direction, the second direction and the third direction intersect each other.

[0014] The positioning device of this application embodiment, by providing a first movable rod extending along a first direction and a second movable rod extending along a second direction, creates an intersection point. Furthermore, by allowing both the first and second movable rods to slide along the grooves of the positioning frame, the user can achieve precise positioning by sliding the first and second movable rods to move the intersection point during perspective viewing, thereby reducing operation steps and increasing the positioning speed of the device. By providing a handle that extends into the groove and connects to the first and second movable rods, the user can pull the handle to slide the first and second movable rods within the groove, improving operational convenience and further reducing operation steps. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view structural schematic diagram of the positioning device according to some embodiments of this application;

[0017] Figure 2 A schematic diagram of the structure of an example positioning device from another perspective is shown;

[0018] Figure 3 A side view of an example positioning device is shown.

[0019] Figure 4 An example is shown. Figure 3 A partially enlarged cross-sectional view of the positioning device;

[0020] Figure 5 A schematic diagram of the structure of an example positioning device is shown from another perspective.

[0021] Figure label:

[0022] 10. Positioning device;

[0023] 100. Positioning frame; 110. Slide groove; 111. First groove; 112. Second groove; 113. First section; 114. Second section; 120. First frame rod; 130. Second frame rod;

[0024] 200. Handle; 210. First part; 220. Second part;

[0025] 300. First movable lever;

[0026] 400. Second movable lever;

[0027] 500, Base; 510, Base frame; 520, First fixing rod; 530, Second fixing rod;

[0028] 600. Ruler;

[0029] 700. Connecting part;

[0030] 800. Indicator;

[0031] x, first direction; y, second direction; z, third direction. Detailed Implementation

[0032] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended only to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0034] To better understand this application, the positioning device of the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that in the drawings, the x-direction is the first direction, the y-direction is the second direction, and the z-direction is the third direction. In the drawings, for ease of drawing, the dimensions in the drawings are not necessarily proportional to the actual dimensions.

[0035] Please refer to Figure 1 and Figure 2 , Figure 1 This is a front view structural schematic diagram of the positioning device according to some embodiments of this application; Figure 2 A schematic diagram of the structure of an example positioning device is shown from another perspective.

[0036] like Figure 1 and Figure 2As shown in the figure, this application embodiment provides a positioning device 10, including a positioning frame 100, a movable rod assembly, and handles 200. The positioning frame 100 has a sliding groove 110 inside. The movable rod assembly is movably connected to the positioning frame 100 and includes at least one first movable rod 300 and at least one second movable rod 400. The first movable rod 300 extends along a first direction (x direction in the figure), and the second movable rod 400 extends along a second direction (y direction in the figure). At least a portion of the first movable rod 300 is located in the sliding groove 110 and can slide along the second direction y, and at least a portion of the second movable rod 400 is located in the sliding groove 110 and can slide along the first direction x. The first direction x and the second direction y intersect. At least two handles 200 extend into the sliding groove 110 and are respectively connected to the first movable rod 300 and the second movable rod 400.

[0037] Optionally, the first direction x is set perpendicular to the second direction y. The positioning frame 100 is a rectangular frame, and the first movable rod 300 and the second movable rod 400 form at least one intersection point within the area enclosed by the positioning frame 100.

[0038] The positioning device 10 of this application embodiment, by providing a first movable rod 300 extending along a first direction x and a second movable rod 400 extending along a second direction y, creates an intersection point between the first movable rod 300 and the second movable rod 400. Furthermore, by allowing both the first movable rod 300 and the second movable rod 400 to slide along the slide groove 110 of the positioning frame 100, the user can achieve precise positioning by sliding the first movable rod 300 and the second movable rod 400 to move the position of the intersection point during perspective viewing. This reduces the number of operation steps and increases the positioning speed of the positioning device 10. By providing a handle 200 that extends into the slide groove 110 and connects to the first movable rod 300 and the second movable rod 400, the user can pull the handle 200 to slide the first movable rod 300 and the second movable rod 400 within the slide groove 110, improving operational convenience and further reducing the number of operation steps.

[0039] Please refer to Figures 1 to 4 , Figure 3 A side view of an example positioning device is shown. Figure 4 An example is shown. Figure 3 A partially enlarged cross-sectional view of the positioning device.

[0040] like Figures 1 to 4As shown, in some optional embodiments, the positioning frame 100 includes two first frame rods 120 and two second frame rods 130, which are alternately connected end-to-end. The first frame rods 120 extend along a first direction x, and the two first frame rods 120 are spaced apart along a second direction y. The second frame rods 130 extend along the second direction y, and the two second frame rods 130 are spaced apart along the first direction x. Each of the first frame rods 120 and the second frame rods 130 is provided with a sliding groove 110. The two ends of the first movable rod 300 are respectively located within the sliding grooves 110 of the two second frame rods 130, and the two ends of the second movable rod 400 are respectively located within the sliding grooves 110 of the two first frame rods 120.

[0041] Optionally, two first frame rods 120 and two second frame rods 130 form a rectangular frame. A groove 110 on the first frame rod 120 extends along a first direction x, and a groove 110 on the second frame rod 130 extends along a second direction y. At least one handle 200 extends into the groove 110 of the first frame rod 120 and connects to the second movable rod 400, and at least one handle 200 extends into the groove 110 of the second frame rod 130 and connects to the first movable rod 300. Each handle 200 partially protrudes from the groove 110.

[0042] Optionally, the slide 110 includes a first groove 111 and a second groove 112 that are interconnected. The first groove 111 extends along a first direction x or a second direction y, and the second groove 112 extends along a third direction (the z direction in the figure). The first direction x, the second direction y, and the third direction z intersect each other. At least a portion of the handle 200 extends from the second groove 112 into the slide 110 and is connected to a first movable rod 300 or a second movable rod 400 that extends from the first groove 111 into the slide 110.

[0043] Optionally, the cross-sectional shape of the groove 110 is L-shaped, and the first groove 111 and the second groove 112 respectively form two sections of the L-shaped groove.

[0044] The positioning device 10 of this application embodiment includes a first groove 111 and a second groove 112 with different extending directions in the slide groove 110, and the handle 200 and the movable rod are respectively inserted into the second groove 112 and the first groove 111. This makes the handle 200 protrude from the slide groove 110 on the third z-side of the positioning frame 100, which is convenient for the user to pull the handle 200 on the third z-side of the positioning frame 100. This avoids interference from the movable rod during operation and improves the ease of operation of the positioning device 10.

[0045] In some alternative embodiments, the first movable rod 300 and the second movable rod 400 are spaced apart along a third direction z, such that the first movable rod 300 slides along the second direction y and the second movable rod 400 slides along the first direction x without interfering with each other.

[0046] Optionally, there can be multiple first movable rods 300 and multiple second movable rods 400. Multiple projection points can be positioned during a single C-arm irradiation, thereby reducing the irradiation frequency and minimizing radiation damage to medical staff and patients.

[0047] Please continue to refer to this. Figure 4 In some optional embodiments, the second groove 112 includes a first segment 113 and a second segment 114. The cross-sectional area of ​​the first segment 113 in the third direction z remains constant, while the cross-sectional area of ​​the second segment 114 in the third direction z gradually increases in a direction away from the first segment 113. The handle 200 includes a first part 210 and a second part 220 sequentially arranged in the third direction z. The cross-sectional area of ​​the first part 210 in the third direction z remains constant, while the cross-sectional area of ​​the second part 220 in the third direction z gradually increases in a direction away from the first part 210. At least a portion of the second part 220 is located within the second segment 114, and at least a portion of the first part 210 is located within the first segment 113 and extends out of the second groove 112 from the opening of the first segment 113 away from the second segment 114.

[0048] Optionally, the first segment 113 has an opening on the surface of the positioning frame 100, and the second segment 114 is located on the side of the first segment 113 opposite to the opening. The first groove 111 communicates with the first segment 113.

[0049] Optionally, the first segment 113 and the first part 210 have the same cross-sectional shape and matching cross-sectional area in the third direction z. For example, the cross-sectional shape of both the first segment 113 and the first part 210 is circular. In this case, the first segment 113 is a cylindrical groove, and the first part 210 is a cylindrical structure. The second segment 114 and the second part 220 have the same cross-sectional shape and matching cross-sectional area in the third direction z. For example, the cross-sectional shape of both the second segment 114 and the second part 220 is circular. In this case, the second segment 114 is a frustum-shaped groove, and the first part 210 is a frustum-shaped structure. Before assembling the first frame rod 120 and the second frame rod 130, the first movable rod 300, the second movable rod 400, and the handle 200 can be placed into the slide groove 110 from both sides. Then, the first frame rod 120 and the second frame rod 130 are assembled into a rectangular positioning frame 100. Due to the shape characteristics of the second segment 114 and the second part 220, the handle 200 will not detach from the slide groove 110 from the opening of the second groove 112.

[0050] The positioning device 10 of this application embodiment includes two parts for both the second groove 112 and the handle 200 that cooperates with it, and the cross-sectional area of ​​the second part 220 gradually increases in the direction away from the first part 210, so that the handle 200 is not easy to come out of the second groove 112.

[0051] Please continue to refer to this. Figures 1 to 3 In some optional embodiments, the positioning device 10 further includes a base 500 connected to the positioning frame 100. The base 500 includes a base frame 510 and a grid. The grid includes first fixing rods 520 and second fixing rods 530, both of which are connected to the base frame 510. At least two first fixing rods 520 extend along a first direction x and are spaced apart along a second direction y, and at least two second fixing rods 530 extend along the second direction y and are spaced apart along the first direction x.

[0052] Optionally, the base frame 510 and / or the positioning frame 100 are provided with a scale 600, and the first fixing rods 520 and the second fixing rods 530 in the grid are aligned with the scale on the scale 600. The spacing between two adjacent first fixing rods 520 is equal, and the spacing between two adjacent second fixing rods 530 is equal.

[0053] Optionally, the base frame 510 is a rectangular frame, and the orthographic projection of the base frame 510 in the third direction z overlaps with the orthographic projection of the positioning frame 100 in the third direction z. The base frame 510 and the positioning frame 100 are fixedly connected, and the connection method can be bolt connection or welding, etc.

[0054] Optionally, the opening of the second groove 112 is located on the side of the positioning frame 100 away from the base frame 510, and at least part of the handle 200 protrudes from the side of the positioning frame 100 away from the base frame 510.

[0055] Optionally, the first fixed rod 520, the second fixed rod 530, the first movable rod 300, and the second movable rod 400 are all made of a developable material, such as metal.

[0056] The positioning device 10 of this application embodiment, by setting a scale 600 on the base frame 510 and / or positioning frame 100, and aligning the first fixed rod 520 and the second fixed rod 530 in the grid with the scale on the scale 600, uses the first fixed rod 520 and the second fixed rod 530 as the horizontal and vertical axes in the reference coordinate system. Furthermore, by making the first fixed rod 520, the second fixed rod 530, the first movable rod 300, and the second movable rod 400 all made of a radiopaque material, the first movable rod 300 and the second movable rod 400 can locate the anatomical point position and its specific horizontal and vertical coordinates under C-arm positioning.

[0057] Please refer to Figure 3 and Figure 5 , Figure 5 A schematic diagram of the structure of an example positioning device is shown from another perspective.

[0058] like Figure 3 and Figure 5 As shown, in some optional embodiments, the base frame 510 has a connecting portion 700 on the side opposite to the positioning frame 100. The connecting portion 700 can be an adhesive or a button that can be connected to the electrode pad. The connecting portion 700 is used to fix the positioning device 10 to the patient's skin, reducing displacement of the positioning device 10, minimizing deviation, and thus improving positioning accuracy.

[0059] Optionally, the base frame 510 is provided with an indicator 800 on one side in the first direction x, or the base frame 510 is provided with an indicator 800 on one side in the second direction y. The indicator 800 is used to indicate the head-to-tail direction of the positioning device 10 to avoid placing the positioning device 10 backwards during use. For example, the indicator 800 is generally oriented towards the patient's head.

[0060] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A positioning device, characterized in that The utility model relates to a positioning frame, which comprises a sliding groove in the interior, a movable rod assembly movably connected with the positioning frame, the movable rod assembly comprising at least one first movable rod and at least one second movable rod, the first movable rod extending in a first direction, the second movable rod extending in a second direction, at least part of the first movable rod being located in the sliding groove and being able to slide in the second direction, at least part of the second movable rod being located in the sliding groove and being able to slide in the first direction, the first direction intersecting the second direction, and at least two handles extending into the sliding groove and being connected with the first movable rod and the second movable rod respectively. The positioning frame comprises two first frame rods and two second frame rods, the two first frame rods and the two second frame rods being alternately connected end to end, the first frame rods extending in the first direction and the two first frame rods being spaced apart in the second direction, the second frame rods extending in the second direction and the two second frame rods being spaced apart in the first direction, the first frame rods and the second frame rods each being provided with the sliding groove, both ends of the first movable rod being located in the sliding grooves of the two second frame rods respectively, and both ends of the second movable rod being located in the sliding grooves of the two first frame rods respectively. The sliding groove comprises a first groove and a second groove that are in communication with each other, the first groove extending in the first direction or the second direction, the second groove extending in a third direction, the first direction, the second direction and the third direction intersecting each other, at least part of the handles extending into the sliding groove from the second groove and being connected with the first movable rod or the second movable rod extending into the sliding groove from the first groove. The second groove comprises a first section and a second section, the cross-sectional area of the first section in the third direction being constant, and the cross-sectional area of the second section in the third direction gradually increasing in a direction away from the first section.

2. The positioning device of claim 1, wherein, The handle comprises a first part and a second part arranged in sequence in the third direction, the cross-sectional area of the first part in the third direction being constant, and the cross-sectional area of the second part in the third direction gradually increasing in a direction away from the first part, at least part of the second part being located in the second section, and at least part of the first part being located in the first section and extending out of the second groove from an opening of the first section away from the second section.

3. The positioning device of claim 2, wherein, The utility model further comprises a base connected with the positioning frame, the base comprising a base frame and a grid, the grid comprising first fixed rods and second fixed rods, the first fixed rods and the second fixed rods each being connected with the base frame, at least two first fixed rods extending in the first direction and being spaced apart in the second direction, and at least two second fixed rods extending in the second direction and being spaced apart in the first direction. The base frame and / or the positioning frame is provided with a scale.

4. The positioning device of claim 3, wherein, The side of the base frame away from the positioning frame is provided with a connecting part. The side of the base frame in the first direction is provided with an indicating part, or the side of the base frame in the second direction is provided with an indicating part.

5. The positioning device of claim 1, wherein, ​ ​ 6. The positioning device of claim 5, wherein, ​ 7. The positioning device of claim 5, wherein, ​ 8. The positioning device of claim 5, wherein, ​ 9. The positioning device of claim 1, wherein, The first movable rods and the second movable rods are both multiple in number.

10. The positioning device of claim 1, wherein, The first movable rods and the second movable rods are arranged along a third direction, and the first direction, the second direction and the third direction are intersected two by two.

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