Intervertebral space treatment tool

Abstract

The utility model provides an intervertebral space treatment tool. The intervertebral space treatment tool comprises an operation part; an inner shaft is installed in the connecting rod, the inner shaft is in sliding connection with the connecting rod, and the connecting rod and the inner shaft are hinged to the operation part; the linkage rod is in linkage connection with the inner shaft, and when the inner shaft slides relative to the connecting rod, the inner shaft drives the linkage rod to move; and the first tracer is connected with the linkage rod so as to drive the first tracer to move. According to the intervertebral space treatment tool, an intervertebral space treatment tool model after angle adjustment of the operation part is updated and displayed in the display, tool positions at different bending angles are known, nerves are better protected from being injured, surgical operation is carried out under the condition that the display is visualized, the navigation function is achieved, and the operation efficiency is improved. The technical problem that in the prior art, an intervertebral space treatment tool cannot achieve visualization and precise operation during minimally invasive surgery is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of spine minimally invasive surgery tool technology, specifically relates to an intervertebral space processing tool. BACKGROUND

[0002] Spine minimally invasive surgery has been widely used in clinic, and compared with traditional open surgery, its main difference lies in small incision. Therefore, the instruments required for minimally invasive surgery are different from traditional tools in shape and operation mode, and most instruments need to be operated by entering the body from the outside through a specific channel.

[0003] In spine minimally invasive surgery, the processing of intervertebral space is very important. Usually, the operator will use a series of gun type or paranoid tools to operate through the channel. These tools include but are not limited to: cup type spatula, ring type spatula, bone file and other tools. These tools are usually designed by hinge structure, so that the tools can be unfolded or bent after entering the intervertebral space, so as to better polish and scrape the intervertebral space. The intervertebral space processing tool in the prior art is operated through the channel, and an external or internal mirror is usually used to assist, and real-time monitoring is realized through image. However, the traditional spine surgery tool is not completely suitable for minimally invasive surgery, and there are still some limitations in meeting the needs of minimally invasive surgery.

[0004] The existing intervertebral space processing tool has single function. Every time the tool is replaced, the operator needs to withdraw the tool from the channel and replace the new tool, which is relatively cumbersome. Although an external or internal mirror can be used to assist and real-time monitoring can be realized through image, the tool itself does not have built-in visualization function, and full-process visualization operation cannot be realized, and accurate positioning and operation of the processing tool cannot be realized.

[0005] In summary, the existing intervertebral space processing tool cannot meet the use requirements of surgical robot in minimally invasive surgery, cannot realize navigation and visualization operation, and cannot realize accurate operation of surgical robot in minimally invasive surgery.

[0006] Therefore, the prior art needs to be further developed. UTILITY MODEL CONTENT

[0007] The utility model aims at overcoming the above technical defects, and provides an intervertebral space processing tool to solve the technical problem that the intervertebral space processing tool in related art cannot realize visualization and accurate operation in minimally invasive surgery.

[0008] To achieve the above technical purpose, the utility model discloses the following technical scheme: provide an intervertebral space processing tool, include: operating part, connecting rod, the inner shaft is installed in connecting rod, the inner shaft is slidably connected with connecting rod, and the inner shaft is hinged with operating part respectively with connecting rod, linkage rod, linkage rod is connected with the inner shaft linkage, when the inner shaft slides relative to connecting rod, the inner shaft drives linkage rod to move, first tracer, first tracer is connected with linkage rod, to drive first tracer to move.

[0009] Further, the intervertebral space processing tool includes a second tracer corresponding to the first tracer, the second tracer is fixedly connected with the connecting rod, and the second tracer includes a plurality of positioning members.

[0010] Further, the intervertebral space processing tool includes an angle indicating component, the angle indicating component includes an angle scale and an angle pointer corresponding to the angle scale, the angle pointer is rotatably arranged, a first end of the angle pointer is drivingly connected with the inner shaft, and a second end of the angle pointer is movably connected with the linkage rod to drive the linkage rod to move.

[0011] Further, the angle indicating component includes a dial housing, the dial housing accommodates all angle pointers and at least part of the linkage rod, and the dial housing includes a guide column slidably connected with a guide groove arranged on the linkage rod.

[0012] Further, the intervertebral space processing tool includes a poking component, the poking component is slidably connected with the connecting rod, and a poking portion is protrusively arranged on the poking component; a poking rod is fixedly arranged on the inner shaft, one end of the poking rod is fixedly connected with the poking component through a avoiding slot on the connecting rod, the other end of the poking rod is provided with a first sliding block, a first sliding groove is arranged on the first end of the angle pointer, and the first sliding groove is slidably connected with the first sliding block.

[0013] Further, the operating part is connected with the inner shaft through a universal joint, and the inner shaft is rotatably arranged relative to the connecting rod.

[0014] Further, the operating part includes oppositely arranged first and second tool portions, and the distance between the first and second tool portions is adjustably arranged.

[0015] Further, the operating part includes a distance adjusting component, the distance adjusting component includes an adjusting screw fixedly connected with a connecting buckle of the universal joint, and an adjusting block threadedly connected with the adjusting screw, the adjusting block includes a first adjusting surface slidably connected with the first tool portion and a second adjusting surface slidably connected with the second tool portion, and the first and second adjusting surfaces are both obliquely arranged.

[0016] Further, the intervertebral space treatment tool comprises a height indicating device, the height indicating device comprises a height scale disc mounted on the inner shaft and a height pointer in sliding connection with the height scale disc, the side surface of the height scale disc is in abutment with the connecting rod, and the height pointer is in threaded connection with the inner shaft.

[0017] Further, the intervertebral space treatment tool comprises a handle fixedly connected with the connecting rod, the handle comprises a first opening, and the first opening contains a rotating handle fixedly connected with the inner shaft.

[0018] Beneficial effects:

[0019] 1. In the intervertebral space treatment tool, the connecting rod and the inner shaft are respectively hinged with the operation part, when the inner shaft axially slides relative to the connecting rod, the operation part rotates relative to the connecting rod to realize the adjustment of the bending angle of the operation part, and meanwhile, the inner shaft drives the linkage rod and the first tracer to move through the linkage structure, the movement distance of the first tracer can be obtained through tracking and positioning of the first tracer, the model stored in the navigation system is matched with the actual object according to the movement distance, and the model of the intervertebral space treatment tool after the bending angle of the operation part is adjusted is updated and displayed in the display, so that the position of the tool at different bending angles is known, the operation is performed under the visualization of the display, the navigation function is realized, and the nerve is better protected from being damaged, so as to solve the technical problems that the intervertebral space treatment tool cannot be visualized and accurately operated in the minimally invasive surgery in the related art.

[0020] 2. In the intervertebral space treatment tool, the distance between the first tool part and the second tool part is adjustably arranged, the overall height of the operation part can be adjusted by adjusting the distance between the first tool part and the second tool part, when the operation part is a bone file, the function of a distractor or a fusion cage test model can be realized in addition to the basic function.

[0021] 3. When the operation part is a bone file, the intervertebral space treatment tool can be applied to grind and file the intervertebral soft and hard tissues in the spine minimally invasive surgery, the intervertebral space treatment tool can simultaneously have multiple functions, for example, can be used as a bone file to treat the intervertebral space, for example, can be used as a distractor after adjusting the height to support the intervertebral space to a suitable height, for example, can be used as a fusion cage test model after adjusting the height, without the need to exit the minimally invasive channel multiple times to replace the tool, the cumbersome operation in the operation process is avoided, for example, has the navigation function, the position of the bone file at different bending angles is known, the nerve is better protected from being damaged, and the visualization and accurate operation in the minimally invasive surgery are realized. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of the intervertebral space treatment tool adopted by the embodiment of the utility model;

[0023] Figure 2is another perspective view of the intervertebral space treatment tool used in the embodiment of the present application.

[0024] Figure 3 is a sectional view of the intervertebral space treatment tool used in the embodiment of the present application.

[0025] Figure 4 is a front view of the intervertebral space treatment tool used in the embodiment of the present application.

[0026] Figure 5 is Figure 4 D-D sectional view in

[0027] Figure 6 is Figure 4 C-C sectional view in

[0028] Figure 7 is a structure schematic view of the distance adjusting component of the intervertebral space treatment tool used in the embodiment of the present application.

[0029] Among them, the above-mentioned drawings include the following reference signs:

[0030] 1, operation part;11, first tool part;12, second tool part;13, distance adjusting component;131, adjusting screw;132, adjusting block;133, first adjusting surface;134, second adjusting surface;2, connecting rod;21, avoiding groove;3, inner shaft;4, linkage rod;41, pushing component;411, pushing part;42, pushing rod;421, first sliding block;43, guide groove;44, second sliding groove;51, first tracer;52, second tracer;6, angle indicating component;61, angle scale;62, angle pointer;621, first sliding groove;622, second sliding block;63, dial housing;631, guide column;7, universal joint;8, height indicating device;81, height scale;82, height pointer;91, handle;92, rotating handle. DETAILED DESCRIPTION

[0031] In order to make the person skilled in the art better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0032] According to the embodiment of the present application, an intervertebral space treatment tool is provided, please refer to Figures 1 to 7, including: an operation part 1; a connecting rod 2, an inner shaft 3 is installed in the connecting rod 2, the inner shaft 3 is in sliding connection with the connecting rod 2, and the connecting rod 2 and the inner shaft 3 are respectively hinged with the operation part 1; a linkage rod 4, the linkage rod 4 is in linkage connection with the inner shaft 3, when the inner shaft 3 slides relative to the connecting rod 2, the inner shaft 3 drives the linkage rod 4 to move; a first tracer 51, the first tracer 51 is connected with the linkage rod 4 to drive the first tracer 51 to move.

[0033] Through the above setting, the connecting rod 2 and the inner shaft 3 are respectively hinged with the operation part 1, when the inner shaft 3 slides axially relative to the connecting rod 2, the operation part 1 rotates relative to the connecting rod 2 to realize the adjustment of the bending angle of the operation part 1, at the same time, the inner shaft 3 drives the linkage rod 4 and the first tracer 51 to move through the linkage structure, through the tracking and positioning of the first tracer 51, the moving distance of the first tracer 51 can be obtained, the model stored in the navigation system is matched with the real object according to the moving distance, the model of the intervertebral space treatment tool of the operation part 1 after the bending angle adjustment is updated and displayed in the display, the tool position at different bending angles is understood, the operation is carried out under the condition of visualization in the display, the navigation function is realized, and the nerve is better protected from damage, so as to solve the technical problems that the intervertebral space treatment tool cannot be visualized and accurately operated in the minimally invasive operation mode in the related art.

[0034] It can be understood that the operation part 1 is a tool for destroying, cutting or scraping the tissue in the intervertebral disc space, including but not limited to a bone file, a cup-shaped spatula, a ring-shaped spatula and the like.

[0035] Specifically, the connecting rod 2 is hollowly provided with an accommodating cavity, and the inner shaft 3 can move axially and rotate in the accommodating cavity.

[0036] In the intervertebral space treatment tool of the embodiment, referring to Figure 1 The intervertebral space treatment tool includes a second tracer 52 corresponding to the first tracer 51, the second tracer 52 is fixedly connected with the connecting rod 2, and the second tracer 52 includes a plurality of positioning members and is used for positioning the first tracer 51. Through the above setting, the second tracer 52 and the first tracer 51 maintain a preset installation distance or positional relationship, and the distance change of the first tracer 51 relative to the second tracer 52 can be accurately obtained through the second tracer 52 as a positioning reference, so that the moving distance of the first tracer 51 at different bending angles of the operation part 1 can be accurately obtained.

[0037] It can be understood that the second tracer 52 can be used for tracking and positioning the entire intervertebral space treatment tool, so as to improve the accuracy of surgical navigation.

[0038] Preferably, both the first tracer 51 and the second tracer 52 use reflective balls as positioning elements. The reflective balls reflect the infrared tracking signal emitted by the infrared camera, so that the infrared camera receives the reflected infrared signal, thereby ensuring accurate positioning of the intervertebral disc treatment tool and the first tracer 51.

[0039] In the intervertebral disc treatment tool of this embodiment, see... Figure 5 The intervertebral disc treatment tool includes an angle indicator component 6, which includes an angle scale 61 and an angle pointer 62 corresponding to the angle scale 61. The angle pointer 62 is rotatably set, with its first end drivenly connected to the inner shaft 3 and its second end movably connected to the linkage rod 4 to drive the linkage rod 4 to move.

[0040] Specifically, by setting an angle indicator component 6, the rotation angle of the operating unit 1 is displayed in real time, making it convenient for medical staff to observe the angle adjustment results with the naked eye. At the same time, the axial movement of the inner shaft 3 drives the angle pointer 62 to rotate. The rotating angle pointer 62 drives the linkage rod 4 to move, converting the angle change of the angle pointer 62 into the position change of the first tracer 51. This allows the navigation system to capture the distance change information of the first tracer 51, and then update the matching model in real time on the display. That is, medical staff can obtain the angle change of the operating unit 1 by observing the angle indicator component 6 and watching the display.

[0041] Specifically, the intervertebral disc treatment tool includes a second slider 622 and a second groove 44 that are slidably connected. The second slider 622 is located at the second end of the angle pointer 62. The second groove 44 is provided at the end of the linkage rod 4 away from the first tracer 51. When the angle pointer 62 rotates, the second slider 622 slides in the second groove 44, which limits the linkage rod 4 and pushes the linkage rod 4 to move linearly back and forth.

[0042] Specifically, the angle pointer 62 and the linkage rod 4 together form a crank-slider structure. The angle pointer 62 acts as a crank, converting the rotational motion of the angle pointer 62 into the linear reciprocating motion of the linkage rod 4.

[0043] In the intervertebral disc treatment tool of this embodiment, see... Figure 5 The angle indicating component 6 includes a dial housing 63, which houses all angle pointers 62 and at least a portion of the linkage 4. The dial housing 63 includes a guide post 631, which is slidably connected to a guide groove 43 provided on the linkage 4. This configuration supports and guides the linkage 4, enabling it to reciprocate linearly.

[0044] Understandably, linkage 4 can be designed in an "L" shape or a straight line shape according to actual needs.

[0045] In the intervertebral space treatment tool of the embodiment, referring to Figure 2 、 Figure 5 , the intervertebral space treatment tool comprises a poking part 41, the poking part 41 is in sliding connection with the connecting rod 2, and a poking part 411 is protrusively arranged on the poking part 41; a poking rod 42 is fixedly arranged on the inner shaft 3, one end of the poking rod 42 is fixedly connected with the poking part 41 through the avoiding slot 21 on the connecting rod 2, and the other end of the poking rod 42 is provided with a first sliding block 421, and the first end of the angle pointer 62 is provided with a first sliding groove 621, and the first sliding groove 621 is in sliding connection with the first sliding block 421.

[0046] Specifically, by arranging the poking part 41, the user can control the inner shaft 3 to axially slide relative to the connecting rod 2 by pushing and pulling the poking part 41 while holding the handle 91; when the poking part 41 is pushed and pulled, the inner shaft 3 starts to axially move and the angle pointer 62 starts to rotate at the same time by arranging the poking rod 42, that is, the angle adjustment function of the operation part 1 is realized, and at the same time, the bending angle of the operation part 1 is indicated in the angle indicating part 6, which is convenient for medical staff to operate.

[0047] In the intervertebral space treatment tool of the embodiment, referring to Figure 1 and Figure 5 , when the bending angle of the operation part 1 is adjusted by controlling the poking part 41 to advance or retreat, the angle pointer 62 is simultaneously controlled to move along the rotation center, so that the bending angle is displayed in the angle indicating part 6, and at the same time, the first tracer 51 is linearly moved by the linkage rod 4, causing the relative distance between the first tracer 51 and the second tracer 52 to change, the distance change information is captured by the navigation camera, and the intervertebral space treatment tool model at the corresponding angle is matched and displayed through the navigation system, so that the real object and the model of the intervertebral space treatment tool are matched, and the navigation function is realized. For example, when the angle pointer 62 in the angle indicating part 6 is adjusted to 25°, the angle pointer 62 points to 25°, the universal joint 7 connected with the inner shaft 3 is simultaneously bent to 25°, the relative distance between the first tracer 51 and the second tracer 52 is H1, and after the navigation system recognizes the distance change, the model at H1 is searched and displayed, so that the model and the real object are matched, and the intervertebral space treatment tool model when the operation part 1 is 25° is updated and displayed in the display.

[0048] In the intervertebral space treatment tool of the embodiment, referring to Figure 1 , the operation part 1 is connected with the inner shaft 3 through the universal joint 7, and the inner shaft 3 is rotatably arranged relative to the connecting rod 2. By arranging the universal joint 7, not only the angle adjustment function of the operation part 1 can be realized, but also the inner shaft 3 can be controlled to be rotatable relative to the connecting rod 2, so that more function settings can be realized.

[0049] In the intervertebral space processing tool of the embodiment, referring to Figures 6-7 The operation part 1 comprises oppositely arranged first and second tool parts 11 and 12, and the distance between the first and second tool parts 11 and 12 is adjustably arranged. Through the above arrangement, the distance between the first and second tool parts 11 and 12 is adjustably arranged, and the overall height of the operation part 1 can be adjusted by adjusting the distance between the first and second tool parts 11 and 12. When the operation part 1 is a tool such as a bone file, in addition to the basic function, it can also realize the function of a distractor or a fusion cage trial.

[0050] In the intervertebral space processing tool of the embodiment, referring to Figures 6-7 The operation part 1 comprises a distance adjusting component 13, which comprises an adjusting screw 131 fixedly connected with the connecting buckle of the universal joint 7, and an adjusting block 132 threadedly connected with the adjusting screw 131. The adjusting block 132 comprises a first adjusting surface 133 slidably connected with the first tool part 11 and a second adjusting surface 134 slidably connected with the second tool part 12, and the first and second adjusting surfaces 133 and 134 are both arranged obliquely. By arranging the adjusting screw 131 and the adjusting block 132, when the inner shaft 3 is rotated, the adjusting screw 131 is rotated by the universal joint 7, so that the adjusting block 132 moves relatively, and the first and second tool parts 11 and 12 are separated by the first and second adjusting surfaces 133 and 134, thereby realizing the adjustable distance between the first and second tool parts 11 and 12.

[0051] Preferably, the adjusting screw 131 is a positive and negative screw, and the number of corresponding adjusting blocks 132 is two. When the adjusting screw 131 is rotated, the two adjusting blocks 132 can be controlled to move towards each other or away from each other, so that the distance adjusting process of the first and second tool parts 11 and 12 is more stable.

[0052] In some embodiments, the operation part 1 comprises a connecting seat hinged with the connecting rod 2, the adjusting screw 131 is rotatably arranged relative to the connecting seat, a guide rail is arranged on the connecting seat, the first and second tool parts 11 and 12 are slidably connected with the guide rail, and a limiting component is arranged between the first and second tool parts 11 and 12 to limit the first and second tool parts 11 and 12 during the distance adjusting process, so as to ensure that the adjusting blocks 132 move within the track and prevent the adjusting blocks 132 from being separated too high to cause the first and second tool parts 11 and 12 to be out of track.

[0053] In the intervertebral space processing tool of the embodiment, referring to Figure 3, the intervertebral space processing tool comprises a height indicating device 8, the height indicating device 8 comprises a height scale disc 81 mounted on the inner shaft 3 and a height pointer 82 in sliding connection with the height scale disc 81, the side surface of the height scale disc 81 is in abutment with the connecting rod 2, and the height pointer 82 is in threaded connection with the inner shaft 3. By arranging the height indicating device 8, the inner shaft 3 can drive the height pointer 82 to rotate while rotating, so that the height pointer 82 moves along the axial direction of the inner shaft 3 relative to the height scale disc 81 to indicate the distance between the first tool part 11 and the second tool part 12.

[0054] Specifically, the height scale disc 81 is mounted on the inner shaft 3 and is limited in axial movement on the inner shaft 3, so that the height scale disc 81 can move axially along with the inner shaft 3, when the inner shaft 3 rotates, the side surface of the height scale disc 81 and the height pointer 82 are in abutment with the connecting rod 2, the height scale disc 81 can keep relatively stationary with the inner shaft 3, only the height pointer 82 moves axially relative to the height scale disc 81 with the rotation of the inner shaft 3, so as to indicate the current height of the operating part 1.

[0055] It should be noted that by adjusting the distance between the first tool part 11 and the second tool part 12, the corresponding height can be obtained through the height indicating device 8, the operating part 1 can be used as a fusion cage test model to confirm the specifications of the fusion cage suitable for implantation, without the need to insert a special test model tool for confirmation.

[0056] In the intervertebral space processing tool of the embodiment, referring to Figure 1 The intervertebral space processing tool comprises a handle 91 fixedly connected with the connecting rod 2, the handle 91 comprises a first opening, and a rotating handle 92 is accommodated in the first opening, and the rotating handle 92 is fixedly connected with the inner shaft 3. In this way, by rotating the rotating handle 92, the rotation of the inner shaft 3 relative to the connecting rod 2 can be controlled, so as to realize the height adjusting function of the operating part 1.

[0057] When the operating part 1 in the embodiment is a bone file, the intervertebral space processing tool of the embodiment can be applied to grinding the intervertebral soft and hard tissues in the minimally invasive surgery, the intervertebral space processing tool of the embodiment can simultaneously have multiple functions, for example, it can be used as a bone file to process the intervertebral space, for example, after adjusting the height, it can be used as a distractor to support the intervertebral space to a suitable height, for example, after adjusting the height, it can be used as a fusion cage test model, without the need to exit the minimally invasive channel multiple times to replace the tool, avoiding complicated operations in the surgical process, for example, having a navigation function, knowing the tool position of the bone file at different bending angles, better protecting the nerves from damage, and realizing the visualization and precise operation in the minimally invasive surgery.

[0058] The intervertebral space processing tool of the embodiment can more simply process the intervertebral space, and compared with the traditional method, less instruments are used, and precise operation is performed under visualization.

[0059] When the operation part 1 in the embodiment is a bone file, the following will exemplify the surgical procedure of the spinal minimally invasive surgery using the intervertebral space processing tool of the embodiment:

[0060] 1. Minimally invasive channel preparation, a minimally invasive channel is established in the intervertebral space.

[0061] 2. Installation of instruments and calibration tools, the first tracer 51 and the second tracer 52 are installed on the intervertebral space processing tool, the height of the bone file is adjusted to the minimum, the bending angle of the bone file is ensured to be zero, the intervertebral space processing tool is inserted into the minimally invasive channel, and the intervertebral space processing tool is calibrated to improve the navigation accuracy.

[0062] 3. The intervertebral space processing tool is inserted into the intervertebral space through the minimally invasive channel, and the grinding operation is performed under the robot system and the display visualization.

[0063] 4. If the intervertebral space gap is sufficient, the intervertebral space can be appropriately expanded by adjusting the distance between the first tool part 11 and the second tool part 12 to realize further grinding operation; at the same time, by adjusting the height of the bone file, the tool is used as a fusion cage trial, and the specification of the suitable implanted fusion cage is confirmed, without the need to insert a special trial tool for confirmation.

[0064] 5. After the operation is completed, the height and bending angle of the bone file are returned to zero, and the minimally invasive channel is exited.

[0065] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0066] Alternatively, the specific examples in the embodiment can refer to the examples described in the above-described embodiments, and the embodiment will not be described here.

[0067] The above-mentioned sequence numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0068] In the above-described embodiments of the present application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0069] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An intervertebral space treating tool characterized by, The intervertebral space processing tool comprises: An operating part (1); A connecting rod (2) having an inner shaft (3) installed therein, the inner shaft (3) being in sliding connection with the connecting rod (2), and the connecting rod (2) and the inner shaft (3) being respectively hinged to the operating part (1); A linkage rod (4) in linkage connection with the inner shaft (3), the inner shaft (3) driving the linkage rod (4) to move when the inner shaft (3) slides relative to the connecting rod (2); A first tracer (51) connected to the linkage rod (4) to drive the first tracer (51) to move.

2. The intervertebral disc space instrumentation kit of claim 1 wherein, The intervertebral space processing tool comprises a second tracer (52) corresponding to the first tracer (51), the second tracer (52) being fixedly connected to the connecting rod (2), and the second tracer (52) comprising a plurality of positioning members for positioning the first tracer (51).

3. The intervertebral disc space instrumentation kit of claim 1 wherein, The intervertebral space processing tool comprises an angle indicating component (6) comprising an angle scale disc (61) and an angle pointer (62) corresponding to the angle scale disc (61), the angle pointer (62) being rotatably arranged, a first end of the angle pointer (62) being drivingly connected to the inner shaft (3), and a second end of the angle pointer (62) being movably connected to the linkage rod (4) to drive the linkage rod (4) to move.

4. The intervertebral disc space tool of claim 3 wherein, The angle indicating component (6) comprises a dial housing (63) accommodating all angle pointers (62) and at least part of the linkage rod (4) inside, the dial housing (63) comprising a guide column (631) in sliding connection with a guide groove (43) arranged on the linkage rod (4).

5. The intervertebral disc space instrumentation kit of claim 3 wherein, The intervertebral space processing tool comprises: A dialing component (41) in sliding connection with the connecting rod (2), the dialing component (41) having a dialing part (411) protruding therefrom; A dialing rod (42) fixedly arranged on the inner shaft (3), one end of the dialing rod (42) penetrating through an avoiding groove (21) on the connecting rod (2) and being fixedly connected to the dialing component (41), and the other end of the dialing rod (42) being provided with a first sliding block (421), a first sliding groove (621) being arranged at the first end of the angle pointer (62) and being in sliding connection with the first sliding block (421).

6. The intervertebral disc space tool of claim 1 wherein, The operating part (1) is connected to the inner shaft (3) through a universal joint (7), and the inner shaft (3) is rotatably arranged relative to the connecting rod (2).

7. The intervertebral disc space instrumentation kit of claim 6 wherein, The operating part (1) comprises oppositely arranged first and second tool parts (11, 12), and the distance between the first and second tool parts (11, 12) is adjustably arranged.

8. The intervertebral disc space tool of claim 7 wherein, The operating part (1) comprises a distance adjusting component (13) comprising: An adjusting screw (131) is fixedly connected with the connecting buckle of the universal joint (7); An adjusting block (132) is threadedly connected with the adjusting screw (131), and the adjusting block (132) comprises a first adjusting surface (133) slidably connected with the first tool part (11) and a second adjusting surface (134) slidably connected with the second tool part (12), and the first adjusting surface (133) and the second adjusting surface (134) are both obliquely arranged.

9. The intervertebral disc space tool of claim 6 wherein, The intervertebral space treatment tool comprises a height indicating device (8), the height indicating device (8) comprises a height scale disc (81) mounted on the inner shaft (3) and a height pointer (82) slidably connected with the height scale disc (81), the side surface of the height scale disc (81) is in abutment with the connecting rod (2), and the height pointer (82) is threadedly connected with the inner shaft (3).

10. The intervertebral disc space tool of claim 6 wherein, The intervertebral space treatment tool comprises a handle (91) fixedly connected with the connecting rod (2), and the handle (91) comprises a first opening in which a rotating handle (92) is accommodated, and the rotating handle (92) is fixedly connected with the inner shaft (3).

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