A sawtooth arm-embracing orthopedic internal fixation limiting device and use method

Abstract

The present invention discloses a limiting device for orthopedic internal fixation with a sawtooth arm, and a method for using the limiting device. The present invention relates to the field of orthopedic technology. The lower ends of the two arc-shaped plates are fixedly connected to the two winding belts, and the opposite sides of the arc-shaped plates are provided with inlay grooves. The inner walls of the two inlay grooves are respectively slidably connected to the two inlay frames, and the two inlay frames are rotationally connected to the front and rear ends of the limiting threaded rod. The outer wall of the limiting threaded rod is spirally connected with the sawtooth arm encircling the orthopedic internal fixator. The advantage of the present invention is that the sawtooth arm encircling the orthopedic internal fixator can be moved and adjusted and limited by the rotation of the limiting threaded rod, and the sawtooth arm encircling the orthopedic internal fixator is limited by the limiting frame when the sawtooth arm encircles the orthopedic internal fixator to move in the set direction, so that the position of the sawtooth arm encircling the orthopedic internal fixator can be limited, and the position of the sawtooth arm encircling the orthopedic internal fixator can be adjusted conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of orthopedics, and in particular to a sawtooth arm embracing an orthopedic internal fixation limiting device and a use method thereof. Background Art

[0002] Sawtooth arm ring orthopedic internal fixation is an orthopedic surgical technique, usually used to treat fractures or bone deformities. In this operation, the doctor will use a sawtooth arm ring to fix the fractured parts together to promote bone healing and recovery. This fixation operation usually requires precise surgical operations and professional medical equipment to ensure that the fractured parts are properly supported and fixed. This operation usually requires a certain recovery period to ensure that the fractured parts can fully heal and restore function;

[0003] The general sawtooth arm encircling orthopedic internal fixator on the market is not convenient to limit the sawtooth arm encircling orthopedic internal fixator when in use, resulting in poor effect of the sawtooth arm encircling orthopedic internal fixator when in use, and it is inconvenient to adjust its position after fixation. For this reason, we propose a limiting device and a method of use of a sawtooth arm encircling orthopedic internal fixator. Summary of the invention

[0004] The object of the present invention is to provide a sawtooth arm embracing orthopedic internal fixation limiting device and a use method thereof.

[0005] In order to solve the problems raised in the above-mentioned background technology, the present invention provides the following technical solutions: a limit device for serrated arms embracing orthopedic internal fixation and a method of use, comprising a limit device body, the limit device body comprising a limit frame, a limit mechanism connected at the front and rear ends of the limit frame, a fastening mechanism at the front and rear sides of the limit mechanism, and a protective mechanism connected to the upper side of the limit frame, the limit mechanism comprising a limit threaded rod, an arc plate, a winding belt, a rotating head and an inlay frame, the lower ends of the two arc plates are fixedly connected to the two winding belts, the opposite sides of the arc plate are provided with inlay grooves, the inner walls of the two inlay grooves are respectively slidably connected to the two inlay frames, the two inlay frames are rotatably connected to the front and rear ends of the limit threaded rod, the outer wall of the limit threaded rod is spirally connected with a sawtooth arm embracing the orthopedic internal fixator, and the front end of the limit threaded rod is fixedly connected to the rotating head.

[0006] As a further solution of the present invention: the upper end of the serrated arm ring embracing the orthopedic internal fixator is fixedly connected to a fixed arc plate, the upper end of the fixed arc plate is spirally connected to a fixing screw, the lower end of the fixed arc plate is connected to the serrated arm ring, and the serrated arm ring is fixed to the fixed arc plate by a fixing screw, and the two winding belts cooperate with each other, and the upper end of the inlay frame extends to the outside of the arc plate.

[0007] As a further solution of the present invention: the fastening mechanism includes a fastening frame, an L-shaped connecting frame, a driving plate, an additional frame, an additional plate, an additional threaded rod, a plum blossom block and a guide rod, the inner wall of the inlay groove is slidably connected to the fastening frame, and the upper end of the fastening frame extends to the outside of the arc plate, the left and right sides of the fastening frame are fixedly connected to the L-shaped connecting frame, and the rear ends of the two L-shaped connecting frames are fixedly connected to the upper side of the front end of the driving plate.

[0008] As a further solution of the present invention: the upper rear end side of the inlay frame outside the arc plate is fixedly connected to the front end of the mounting frame, the rear lower end side of the mounting frame is fixedly connected to the upper end of the mounting plate, and the left and right sides of the mounting plate are rotatably connected to the mounting threaded rod and the guide rod respectively.

[0009] As a further solution of the present invention: the additional threaded rod and the guide rod are both arranged through the driving plate, the additional threaded rod and the driving plate are spirally connected, the rear end of the additional threaded rod is fixedly connected to the plum blossom block, and the guide rod and the additional plate are slidably connected.

[0010] As a further solution of the present invention: the protective mechanism includes a protective storage plate, a receiving plate, an arc-shaped protective plate, a pushing block, a shielding plate, a connecting block and a plug-in column. The upper outer wall of the arc-shaped plate is fixedly connected to the two connecting blocks, and the upper ends of the two connecting blocks are respectively fixedly connected to the protective storage plate and the receiving plate.

[0011] As a further solution of the present invention: an arc-shaped bin is provided at the right end of the protective storage plate, the interior of the arc-shaped bin is slidably connected to the outer wall of the arc-shaped protective plate, a connecting bin is provided on the left side wall of the supporting plate, and the arc-shaped protective plate can extend to the interior of the connecting bin, and a translation groove is provided at the upper end of the supporting plate, and the translation groove is connected to the connecting bin.

[0012] As a further solution of the present invention: the interior of the translation groove is slidingly connected to the outer wall of the pushing block, the rear end of the pushing block is fixedly connected to the rear wall of the clamping groove by a spring, the front end of the pushing block is fixedly connected to the plug-in column, the right end of the arc-shaped protective plate is provided with a clamping groove, and the clamping groove and the plug-in column cooperate with each other, the upper end of the pushing block extends to the outside of the supporting plate, and a shielding plate is fixedly connected to the pushing block on the outside of the supporting plate, and the shielding plate is arranged close to the upper wall of the supporting plate.

[0013] A method for using a sawtooth arm-embracing orthopedic internal fixation limiter, characterized in that it comprises the following steps:

[0014] Step 1: Put the curved plate and the wrapping belt on the top of the upper arm, then use the wrapping belt to fix the curved plate on the arm, and then slide the inlay frame into the inlay groove;

[0015] Step 2: Slide the fastening frame into the inlay groove, and align the driving plate connected to the fastening frame through the L-shaped connecting frame with the additional threaded rod and the guide rod;

[0016] Step 3, rotating the plum blossom block, using the plum blossom block to drive the additional threaded rod to rotate, the additional threaded rod can be spirally connected with the driving plate, so as to spirally install the driving plate, and use the guide rod to guide the movement of the driving plate until the inlay frame is fastened by the fastening frame;

[0017] Step 4: The sawtooth arm is then screwed to the limiting threaded rod, and then the rotating head is rotated to drive the limiting threaded rod to rotate. The sawtooth arm is screwed to the orthopedic internal fixator by the rotation of the rotating head. The limiting threaded rod is rotated to allow the sawtooth arm to screw to the orthopedic internal fixator, and the limiting frame is used to limit the movement of the sawtooth arm to the orthopedic internal fixator, so that the sawtooth arm can move better. Then, the limiting frame at the rear end is installed on the arm and cooperates with the limiting threaded rod.

[0018] Step 5: Pull the arc-shaped protective plate out of the arc-shaped bin, slide the arc-shaped protective plate into the interior of the connection bin, push the push block to drive the plug-in column to move, and move the plug-in column out of the connection bin;

[0019] Step 6. Then make the snap-in slot of the arc-shaped protective plate flush with the plug-in column. At this time, release the push on the push block, and the spring will push the push block to reset, and at the same time push the plug-in column to move, so that the plug-in column slides into the inside of the snap-in slot, thereby fixing the position of the arc-shaped protective plate and protecting the lower parts through the arc-shaped protective plate.

[0020] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0021] The present invention can increase friction by means of a rotating head, thereby facilitating the rotation of a limiting threaded rod; the rotation of the limiting threaded rod can enable the sawtooth arm to embrace the orthopedic internal fixator for movement and adjustment, and limit the sawtooth arm; the limiting frame can limit the movement of the sawtooth arm embracing the orthopedic internal fixator, so that the sawtooth arm embracing the orthopedic internal fixator can move in a set direction; the inlay frame can facilitate the installation and disassembly of the limiting threaded rod; the inlay groove can limit the position of the inlay frame, so that the position of the sawtooth arm embracing the orthopedic internal fixator can be limited, and the position of the sawtooth arm embracing the orthopedic internal fixator can be conveniently adjusted.

[0022] After the positions of the L-shaped connecting frame and the driving plate are fixed by the fastening frame, the position of the inlay frame can be fastened by the fastening frame, so that the position of the inlay frame is fixed, the mounting frame can be fixedly connected to the mounting plate, the mounting threaded rod can be spirally matched with the driving plate, and when the mounting threaded rod is rotated, the driving plate can be spirally installed and the driving plate can be moved on the mounting threaded rod, so that the inlay frame can be fixed, thereby improving the stability of the inlay frame and the limiting threaded rod when in use.

[0023] The present invention can shield the components on the lower side of the arc-shaped protective plate through the arc-shaped protective plate, thereby protecting the components on the lower side; the pushing block can be translated through the translation groove, and can cooperate with the connecting block through the snap-in groove. The plug-in column can be inserted into the snap-in groove, thereby fixing the position of the arc-shaped protective plate, so that the arc-shaped protective plate can protect the components on the lower side more stably; the translation groove can be shielded by the shielding plate, so that the components on the lower side of the arc-shaped protective plate can be protected, and the position of the arc-shaped protective plate can be fixed conveniently, so that the arc-shaped protective plate is more stable when protecting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall three-dimensional schematic diagram of an embodiment of the present invention;

[0025] Figure 2 This is a three-dimensional schematic diagram of a fixed arc plate in an embodiment of the present invention;

[0026] Figure 3 It is a three-dimensional schematic diagram of a limiting frame in an embodiment of the present invention;

[0027] Figure 4 In the embodiment of the present invention Figure 3 A is an enlarged schematic diagram;

[0028] Figure 5 A three-dimensional schematic diagram of a curved plate in an embodiment of the present invention;

[0029] Figure 6 It is a three-dimensional schematic diagram of a fastening frame in an embodiment of the present invention;

[0030] Figure 7 is a three-dimensional schematic diagram of a mosaic frame in an embodiment of the present invention;

[0031] Figure 8 It is a three-dimensional schematic diagram of a receiving plate in an embodiment of the present invention;

[0032] Fig. 9 It is a three-dimensional schematic diagram of the arc-shaped protective plate in an embodiment of the present invention.

[0033] In the figure: 1, the main body of the limiting device; 2, the limiting frame; 3, the sawtooth arm encircling the orthopedic internal fixator; 4, the limiting mechanism; 401, the limiting threaded rod; 402, the arc plate; 403, the winding belt; 404, the rotating head; 405, the inlay groove; 406, the inlay frame; 407, the fixed arc plate; 408, the fixing screw; 5, the fastening mechanism; 501, the fastening frame; 502, the L-shaped connecting frame; 503, Driving plate; 504, mounting frame; 505, mounting plate; 506, mounting threaded rod; 507, plum blossom block; 508, guide rod; 6, protection mechanism; 601, protection storage plate; 602, receiving plate; 603, arc bin; 604, arc protection plate; 605, translation groove; 606, snap-in groove; 607, push block; 608, shielding plate; 609, connecting block; 610, plug-in column. DETAILED DESCRIPTION

[0034] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] Example 1, please refer to the attached Figure 1 -Attached Fig. 9 The present invention provides a technical solution: a limit device for embracing orthopedic internal fixation with a sawtooth arm and a method of use, comprising a limit device body 1, the limit device body 1 comprising a limit frame 2, a limit mechanism 4 connected to the front and rear ends of the limit frame 2, a fastening mechanism 5 on the front and rear sides of the limit mechanism 4, and a protective mechanism 6 connected to the upper side of the limit frame 2, the limit mechanism 4 comprising a limit threaded rod 401, an arc plate 402, a winding belt 403, a rotating head 404 and an inlay frame 406, the lower ends of the two arc plates 402 are fixedly connected to the two winding belts 403, the opposite sides of the arc plates 402 are provided with inlay grooves 405, the inner walls of the two inlay grooves 405 are respectively slidably connected to the two inlay frames 406, the two inlay frames 406 are rotatably connected to the front and rear ends of the limit threaded rod 401, the outer wall of the limit threaded rod 401 is spirally connected with a sawtooth arm embracing orthopedic internal fixator 3, and the front end of the limit threaded rod 401 is fixedly connected to the rotating head 404.

[0036] In this embodiment, the serrated arm ring connected to the lower end can be installed and disassembled by fixing the arc plate 407 and the fixing screws 408, which facilitates the adjustment of the size of the serrated arm ring so as to accommodate more arms. The arc plate 402 can be fixed to the arm at the set position by pasting or gluing the two wrapping belts 403, thereby increasing the fixing effect of the arc plate 402.

[0037] The upper end of the serrated arm ring embracing the orthopedic internal fixator 3 is fixedly connected to a fixed arc plate 407, the upper end of the fixed arc plate 407 is spirally connected to a fixing screw 408, the lower end of the fixed arc plate 407 is connected to the serrated arm ring, and the serrated arm ring is fixed to the fixed arc plate 407 by the fixing screw 408, and the two winding belts 403 cooperate with each other, and the upper end of the inlay frame 406 extends to the outside of the arc plate 402.

[0038] Specifically, the friction can be increased by rotating the head 404, thereby facilitating the rotation of the limiting threaded rod 401. The rotation of the limiting threaded rod 401 can enable the sawtooth arm to embrace the orthopedic internal fixator 3 for movement and adjustment. The limiting frame 2 can limit the movement of the sawtooth arm embracing the orthopedic internal fixator 3, so that the sawtooth arm embracing the orthopedic internal fixator 3 can move in a set direction. The inlay frame 406 can facilitate the installation and disassembly of the limiting threaded rod 401, and the inlay groove 405 can limit the position of the inlay frame 406.

[0039] Example 2, please refer to the attached Figure 1 -Attached Fig. 9 The present invention provides a technical solution: a limit device for embracing orthopedic internal fixation with a sawtooth arm and a method of use, comprising a limit device body 1, the limit device body 1 comprising a limit frame 2, a limit mechanism 4 connected to the front and rear ends of the limit frame 2, a fastening mechanism 5 on the front and rear sides of the limit mechanism 4, and a protective mechanism 6 connected to the upper side of the limit frame 2, the limit mechanism 4 comprising a limit threaded rod 401, an arc plate 402, a winding belt 403, a rotating head 404 and an inlay frame 406, the lower ends of the two arc plates 402 are fixedly connected to the two winding belts 403, the opposite sides of the arc plates 402 are provided with inlay grooves 405, the inner walls of the two inlay grooves 405 are respectively slidably connected to the two inlay frames 406, the two inlay frames 406 are rotatably connected to the front and rear ends of the limit threaded rod 401, the outer wall of the limit threaded rod 401 is spirally connected with a sawtooth arm embracing orthopedic internal fixator 3, and the front end of the limit threaded rod 401 is fixedly connected to the rotating head 404.

[0040] In this embodiment, the fastening frame 501 and the driving plate 503 can be fixedly connected through the L-shaped connecting frame 502, and the moving state of the fastening frame 501 can be controlled by the L-shaped connecting frame 502 through the moving state of the driving plate 503, and the driving plate 503 can cooperate with the additional threaded rod 506, and the additional threaded rod 506 can be conveniently rotated through the plum blossom block 507, and the position of the driving plate 503 can be limited by the guide rod 508, so that the driving plate 503 moves in the set direction.

[0041] The fastening mechanism 5 includes a fastening frame 501, an L-shaped connecting frame 502, a driving plate 503, an additional frame 504, an additional plate 505, an additional threaded rod 506, a plum blossom block 507 and a guide rod 508. The inner wall of the inlay groove 405 is slidably connected to the fastening frame 501, and the upper end of the fastening frame 501 extends to the outside of the arc plate 402. The left and right sides of the fastening frame 501 are fixedly connected to the L-shaped connecting frame 502. The rear ends of the two L-shaped connecting frames 502 are fixedly connected to the upper side of the front end of the driving plate 503. The outer inlay frame 504 of the arc plate 402 is fixedly connected to the upper side of the front end of the driving plate 503. The upper side of the rear end of 406 is fixedly connected to the front end of the mounting frame 504, the rear side of the lower end of the mounting frame 504 is fixedly connected to the upper end of the mounting plate 505, and the left and right sides of the mounting plate 505 are rotatably connected to the mounting threaded rod 506 and the guide rod 508 respectively. The mounting threaded rod 506 and the guide rod 508 are both arranged through the driving plate 503, and the mounting threaded rod 506 and the driving plate 503 are spirally connected. The rear end of the mounting threaded rod 506 is fixedly connected to the plum blossom block 507, and the guide rod 508 and the mounting plate 505 are slidingly connected.

[0042] Specifically, after fixing the positions of the L-shaped connecting frame 502 and the driving plate 503 by the fastening frame 501, the fastening frame 501 can be used to fasten the position of the inlay frame 406, so that the position of the inlay frame 406 is fixed, and the mounting frame 504 can be used to fix the mounting plate 505, and the mounting threaded rod 506 can be screwed together with the driving plate 503. When the mounting threaded rod 506 rotates, the driving plate 503 can be screwed installed and the driving plate 503 can be moved on the mounting threaded rod 506.

[0043] Example 3, please refer to the attached Figure 1 -Attached Fig. 9 The present invention provides a technical solution: a limit device for embracing orthopedic internal fixation with a sawtooth arm and a method of use, comprising a limit device body 1, the limit device body 1 comprising a limit frame 2, a limit mechanism 4 connected to the front and rear ends of the limit frame 2, a fastening mechanism 5 on the front and rear sides of the limit mechanism 4, and a protective mechanism 6 connected to the upper side of the limit frame 2, the limit mechanism 4 comprising a limit threaded rod 401, an arc plate 402, a winding belt 403, a rotating head 404 and an inlay frame 406, the lower ends of the two arc plates 402 are fixedly connected to the two winding belts 403, the opposite sides of the arc plates 402 are provided with inlay grooves 405, the inner walls of the two inlay grooves 405 are respectively slidably connected to the two inlay frames 406, the two inlay frames 406 are rotatably connected to the front and rear ends of the limit threaded rod 401, the outer wall of the limit threaded rod 401 is spirally connected with a sawtooth arm embracing orthopedic internal fixator 3, and the front end of the limit threaded rod 401 is fixedly connected to the rotating head 404.

[0044] In this embodiment, the arc-shaped protective plate 604 can be stored and hidden by the arc-shaped warehouse 603 of the protective storage plate 601, and the supporting plate 602 can cooperate with the arc-shaped protective plate 604 to fix the position of the arc-shaped protective plate 604. The protective storage plate 601 and the supporting plate 602 can be installed and supported by the connecting block 609, so that the height of the protective storage plate 601 and the supporting plate 602 is higher than the position of the inlay frame 406 and the installation frame 504.

[0045] The protection mechanism 6 includes a protection receiving plate 601, a receiving plate 602, an arc-shaped protection plate 604, a pushing block 607, a shielding plate 608, a connecting block 609 and a plug-in column 610. The upper outer wall of the arc-shaped plate 402 is fixedly connected to the two connecting blocks 609. The upper ends of the two connecting blocks 609 are respectively fixedly connected to the protection receiving plate 601 and the receiving plate 602. An arc-shaped bin 603 is provided at the right end of the protection receiving plate 601. The interior of the arc-shaped bin 603 is slidably connected to the outer wall of the arc-shaped protection plate 604. A connecting bin is provided on the left side wall of the receiving plate 602, and the arc-shaped protection plate 604 can extend to the interior of the connecting bin. The receiving plate 60 2 is provided with a translation groove 605, and the translation groove 605 is communicated with the connection bin, the interior of the translation groove 605 is slidably connected with the outer wall of the push block 607, the rear end of the push block 607 is fixedly connected with the rear wall of the clamping groove 606 by a spring, the front end of the push block 607 is fixedly connected with the plug-in column 610, the right end of the arc-shaped protective plate 604 is provided with a clamping groove 606, and the clamping groove 606 and the plug-in column 610 cooperate with each other, the upper end of the push block 607 extends to the outside of the receiving plate 602, and a shielding plate 608 is fixedly connected to the push block 607 on the outside of the receiving plate 602, and the shielding plate 608 is arranged close to the upper wall of the receiving plate 602.

[0046] Specifically, the components on the lower side of the arc protective plate 604 can be shielded by the arc protective plate 604, thereby protecting the components on the lower side; the pushing block 607 can be translated through the translation groove 605, and can cooperate with the connecting block 609 through the snap-in groove 606. The plug-in column 610 can be plugged into the snap-in groove 606, thereby fixing the position of the arc protective plate 604, so that the arc protective plate 604 can protect the components on the lower side more stably, and the translation groove 605 can be shielded by the shielding plate 608.

[0047] Working principle:

[0048] Step 1: First, put the arc plate 402 and the winding belt 403 on the top of the upper arm, and then use the winding belt 403 to fix the arc plate 402 on the arm, then slide the inlay frame 406 into the inlay groove 405, and then slide the fastening frame 501 into the inlay groove 405, so that the driving plate 503 connected to the fastening frame 501 through the L-shaped connecting frame 502 is aligned with the threaded rod 506 and the guide rod 508;

[0049] The second step, secondly, rotate the plum blossom block 507, use the plum blossom block 507 to drive the additional threaded rod 506 to rotate, and the additional threaded rod 506 can be spirally connected with the driving plate 503, so that the driving plate 503 is spirally installed, and the guide rod 508 is used to guide the movement of the driving plate 503, until the inlay frame 406 is fastened by the fastening frame 501, and then the sawtooth arm encircles the orthopedic internal fixator 3 and is spirally connected with the limiting threaded rod 401, and then the rotating head 404 is rotated, and the limiting threaded rod 401 is driven to rotate by the rotation of the rotating head 404, and the sawtooth arm encircles the orthopedic internal fixator 3 for spiral installation by the rotation of the limiting threaded rod 401, and the limiting frame 2 is used to limit the movement of the sawtooth arm encircling the orthopedic internal fixator 3, so that the sawtooth arm encircling the orthopedic internal fixator 3 can be better moved, and then the rear end limiting frame 2 is installed on the arm and cooperates with the limiting threaded rod 401;

[0050] The third step, finally, pull the arc protection plate 604 out of the arc warehouse 603, so that the arc protection plate 604 slides into the interior of the connection warehouse, push the push block 607 to drive the plug-in column 610 to move, so that the plug-in column 610 is moved out of the connection warehouse, and then make the card slot 606 of the arc protection plate 604 flush with the plug-in column 610, then release the push on the push block 607, the spring will push the push block 607 to reset, and at the same time push the plug-in column 610 to move, so that the plug-in column 610 slides into the interior of the card slot 606, thereby fixing the position of the arc protection plate 604, and protecting the lower side components through the arc protection plate 604, and the entire work process is completed.

[0051] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0053] It should be noted that the device structure and the drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above invention, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field.

[0054] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0055] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A sawtooth arm-embracing orthopedic internal fixation limiter, comprising a limiter body (1), characterized in that: The limiting device body (1) comprises a limiting frame (2), a limiting mechanism (4) connected to the front and rear ends of the limiting frame (2), a fastening mechanism (5) on the front and rear sides of the limiting mechanism (4), and a protective mechanism (6) connected to the upper side of the limiting frame (2); the limiting mechanism (4) comprises a limiting threaded rod (401), an arc plate (402), a winding belt (403), a rotating head (404), and a mounting frame (406); the lower ends of the two arc plates (402) are connected to the two winding belts (403). 3) fixed connection, the arc-shaped plate (402) is provided with an inlay groove (405) on the opposite side, the inner walls of the two inlay grooves (405) are respectively slidably connected to the two inlay frames (406), the two inlay frames (406) are rotatably connected to the front and rear ends of the limiting threaded rod (401), the outer wall of the limiting threaded rod (401) is spirally connected with a sawtooth arm that surrounds the orthopedic internal fixator (3), and the front end of the limiting threaded rod (401) is fixedly connected to the rotating head (404); The fastening mechanism (5) comprises a fastening frame (501), an L-shaped connecting frame (502), a driving plate (503), an additional frame (504), an additional plate (505), an additional threaded rod (506), a plum blossom block (507) and a guide rod (508); the inner wall of the inlay groove (405) is slidably connected to the fastening frame (501), and the upper end of the fastening frame (501) extends to the outer side of the arc-shaped plate (402); the left and right sides of the fastening frame (501) are fixedly connected to the L-shaped connecting frame (502), and the rear ends of the two L-shaped connecting frames (502) are fixedly connected to the upper side of the front end of the driving plate (503); The protection mechanism (6) comprises a protection storage plate (601), a receiving plate (602), an arc-shaped protection plate (604), a pushing block (607), a shielding plate (608), a connecting block (609) and a plug-in column (610); the upper outer wall of the arc-shaped plate (402) is fixedly connected to the two connecting blocks (609); the upper ends of the two connecting blocks (609) are respectively fixedly connected to the protection storage plate (601) and the receiving plate (602).

2. A sawtooth arm embracing orthopedic internal fixation limiting device according to claim 1, characterized in that: The upper end of the sawtooth arm ring embracing the orthopedic internal fixator (3) is fixedly connected to a fixed arc plate (407), the upper end of the fixed arc plate (407) is spirally connected to a fixing screw (408), the lower end of the fixed arc plate (407) is connected to the sawtooth arm ring, and the sawtooth arm ring is fixed to the fixed arc plate (407) by the fixing screw (408), and the two winding belts (403) cooperate with each other, and the upper end of the inlay frame (406) extends to the outside of the arc plate (402).

3. A sawtooth arm encircling orthopedic internal fixation limiting device according to claim 2, characterized in that: The upper rear end of the inlay frame (406) outside the arc-shaped plate (402) is fixedly connected to the front end of the mounting frame (504), the lower rear end of the mounting frame (504) is fixedly connected to the upper end of the mounting plate (505), and the left and right sides of the mounting plate (505) are rotatably connected to the mounting threaded rod (506) and the guide rod (508) respectively.

4. A sawtooth arm encircling orthopedic internal fixation limiting device according to claim 3, characterized in that: The additional threaded rod (506) and the guide rod (508) are both arranged to penetrate the driving plate (503); the additional threaded rod (506) and the driving plate (503) are spirally connected; the rear end of the additional threaded rod (506) is fixedly connected to the plum blossom block (507); and the guide rod (508) and the additional plate (505) are slidably connected.

5. The sawtooth arm-embracing orthopedic internal fixation limiting device according to claim 1, characterized in that: The right end of the protective storage plate (601) is provided with an arc-shaped bin (603), the interior of the arc-shaped bin (603) is slidably connected to the outer wall of the arc-shaped protective plate (604), the left side wall of the receiving plate (602) is provided with a connecting bin, and the arc-shaped protective plate (604) can extend to the interior of the connecting bin, and the upper end of the receiving plate (602) is provided with a translation groove (605), and the translation groove (605) is connected to the connecting bin.

6. A sawtooth arm embracing orthopedic internal fixation limiting device according to claim 5, characterized in that: The interior of the translation groove (605) is slidably connected to the outer wall of the pushing block (607); the rear end of the pushing block (607) is fixedly connected to the rear wall of the clamping groove (606) via a spring; the front end of the pushing block (607) is fixedly connected to the plug-in column (610); a clamping groove (606) is provided at the right end of the arc-shaped protective plate (604); the clamping groove (606) and the plug-in column (610) cooperate with each other; the upper end of the pushing block (607) extends to the outside of the receiving plate (602); a shielding plate (608) is fixedly connected to the pushing block (607) on the outside of the receiving plate (602); and the shielding plate (608) is arranged close to the upper wall of the receiving plate (602).

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