Internal fixation steel plate system for orthopedics department

Abstract

The utility model discloses an orthopedic internal fixation steel plate system, and relates to the technical field of medical instruments. The two opposite sides of the steel plate in the thickness direction are provided with a first surface and a second surface capable of making contact with a backbone, the multiple protrusions are arranged on the first surface at intervals in the length direction of the steel plate, and the two opposite ends of the steel plate in the length direction are provided with through holes penetrating in the thickness direction of the steel plate. One end of each limiting piece is provided with a clamping part, the other end of each limiting piece is provided with an insertion part capable of penetrating through the diaphysis cortex, the limiting pieces are in one-to-one correspondence with the through holes and penetrate through the through holes, and the clamping parts are located on the sides, close to the first surface, of the through holes and can be clamped to the steel plate; a plurality of hoop assemblies are arranged corresponding to the convex parts and the clamping parts, in each hoop assembly, a first half-ring hoop and a second half-ring hoop are detachably connected and form a surrounding area capable of surrounding the steel plate and the backbone, and the inner side face of each first half-ring hoop is provided with a groove capable of being connected with the corresponding convex part or the corresponding clamping part in a matched mode. No screw is needed for fixation, bone injury is reduced, and the fracture healing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an orthopedic internal fixation plate system. Background Technology

[0002] Traditional bone shaft fracture reduction surgery, also known as internal fixation with plates, is a technique familiar and mastered by every clinical orthopedic surgeon. During the procedure, surgeons have encountered unstable fracture reduction situations. Specifically, the process begins with shaping the plate, placing it on the patient, and fixing it. Then, the screws are inserted. During this process, unstable plate fixation can make screw insertion difficult; or, drilling, depth measurement, tapping, and screw tightening can cause plate slippage or a change in fracture position, requiring repetition of the previous steps. This increases surgical time, causes unnecessary injury to the patient, and adds unpredictable risks during the operation.

[0003] Furthermore, during the fracture healing period, the fixation screws can cause stress shielding, leading to poor contact between the fracture ends, slow or stopped callus growth, and nonunion. In addition, stress concentration on the fixation screws under both static and dynamic fixation conditions can ultimately result in serious consequences such as screw breakage and plate fracture. These issues have long been a focus of attention, consideration, and research in the orthopedic community. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an orthopedic internal fixation plate system that eliminates the need for fixing screws, saving the steps of drilling, tapping, depth measurement, and screw tightening, thus shortening surgical time and reducing damage to the bone, thereby reducing surgical risks, promoting faster fracture healing, and improving fracture healing outcomes.

[0005] This utility model embodiment provides an orthopedic internal fixation plate system, which includes:

[0006] A steel plate having a first surface and a second surface for contacting a backbone, the first surface and the second surface being located on opposite sides of the steel plate in the thickness direction, the first surface having a plurality of protrusions spaced apart along the length direction of the steel plate, and through holes being provided at opposite ends of the steel plate in the length direction, the through holes penetrating the steel plate along the thickness direction;

[0007] The limiting member has a snap-fit ​​part at one end and an insertion part for drilling through the cortex of the bone shaft at the other end. The limiting member corresponds one-to-one with the through hole. The limiting member passes through the through hole and the snap-fit ​​part is located on the side of the through hole closer to the first surface and can snap onto the steel plate.

[0008] The clamp assembly has multiple clamps corresponding to the protrusion and the snap-fit ​​portion, and is spaced apart along the length of the steel plate. The clamp assembly includes a first half-ring clamp and a second half-ring clamp. The first half-ring clamp and the second half-ring clamp are detachably connected and form a surrounding area for circling the steel plate and the backbone so that the steel plate contacts the backbone. The inner side of the first half-ring clamp is provided with a groove for adapting and connecting with the protrusion or the snap-fit ​​portion.

[0009] The orthopedic internal fixation plate system according to the embodiments of this utility model has at least the following beneficial effects: Multiple clamping assemblies are arranged along the length of the plate, connected by a first half-ring clamp and a second half-ring clamp to encircle the plate and the bone shaft, causing the plate to make tight contact with the bone shaft through its second surface, effectively fixing the fracture position and promoting fracture healing; the protrusions on the first surface of the plate can engage with the grooves on the corresponding first half-ring clamps, fixing the plate to the corresponding clamping assemblies and preventing the clamping assemblies from moving relative to the plate. This design enhances the fixation effect of the orthopedic internal fixation plate system by promoting slippage. Through holes are provided at both ends of the plate along its length, with limiting components positioned at these holes. The insertion portion of the limiting component passes through the through hole and can penetrate the cortex of the bone shaft, thus fixing the limiting component relative to the bone shaft. Furthermore, the locking portion of the limiting component engages with the groove on the corresponding first half-ring clamp, further securing the limiting component relative to the first half-ring clamp. Simultaneously, the limiting component effectively and firmly fixes the plate relative to the bone shaft, preventing slippage, rotation, or other displacement issues that could hinder rapid bone shaft healing.

[0010] In some embodiments of this utility model, the snap-fit ​​portion is nipple-shaped.

[0011] In some embodiments of this utility model, the insertion part is cylindrical.

[0012] In some embodiments of this utility model, the protrusion is nipple-shaped.

[0013] In some embodiments of this utility model, the protrusion is integrally formed with the steel plate.

[0014] In some embodiments of this utility model, the through hole located at one end of the steel plate in the length direction is an elongated hole, which extends along the length direction of the steel plate.

[0015] In some embodiments of this utility model, the steel plate is rectangular; the steel plate is provided with at least one piece.

[0016] In some embodiments of this utility model, one end of the first semi-circular clamp is movably connected to one end of the second semi-circular clamp, and the other end of the first semi-circular clamp is snap-fitted to the other end of the second semi-circular clamp.

[0017] In some embodiments of this utility model, one end of the first semi-circular clamp is bent inward to form a first hook portion, and the other end of the first semi-circular clamp is provided with a plurality of first hook holes. One end of the second semi-circular clamp is provided with a second hook hole, and the other end of the second semi-circular clamp is bent inward to form a second hook portion. The first hook portion passes through the second hook hole, and the second hook portion passes through any of the first hook holes, so that the first semi-circular clamp and the second semi-circular clamp are snapped together.

[0018] In some embodiments of this utility model, the other end of the second half-ring clamp is provided with a through hole, the through hole being located near the second hook portion, and both the first hook hole and the through hole having an inner diameter for the tip of the locking pliers to pass through.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the orthopedic internal fixation plate system provided according to an embodiment of the present utility model, viewed from a cross-sectional angle.

[0021] Figure 2 This is a cross-sectional schematic diagram of the steel plate in the orthopedic internal fixation steel plate system provided according to the embodiments of this utility model;

[0022] Figure 3 This is a front view of the steel plate in the orthopedic internal fixation plate system provided according to an embodiment of the present utility model;

[0023] Figure 4 This is a structural schematic diagram of the orthopedic internal fixation plate system provided according to the embodiments of this utility model in use.

[0024] Reference numerals: 110, steel plate; 111, through hole; 112, elongated hole; 120, protrusion; 130, limiting component; 200, clamp assembly; 210, first half-ring clamp; 211, first hook; 212, first hook hole; 220, second half-ring clamp; 221, second hook hole; 222, through hole; 223, second hook; 300, backbone; 400, periosteal elevator; 500, locking clamp. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Since the first case of internal fixation with plates was applied to human diaphragm fractures, more than 130 years have passed. During this time, countless orthopedic pioneers have used their wisdom and rich clinical experience to continuously promote the advancement of internal fixation techniques and materials. To this day, internal fixation with plates for diaphragm fracture reduction still relies on fixation screws. However, the use of fixation screws to achieve plate fixation also presents various problems in the early and late stages of diaphragm fracture treatment.

[0029] In plate fixation surgery, unstable plate fixation increases the difficulty of screw insertion; or, drilling, depth measurement, tapping and screwing can cause plate slippage and changes in fracture position, requiring doctors to repeat previous operations, which increases the time required for surgery, causes unnecessary damage to patients, and adds unpredictable risks during the operation.

[0030] Furthermore, during the fracture healing period, the fixation screws can cause stress shielding, leading to poor contact between the fracture ends, slow or stopped callus growth, and nonunion. In addition, stress concentration on the fixation screws under both static and dynamic fixation conditions can ultimately result in screw and plate breakage, among other serious consequences. These issues have long been a focus of attention, reflection, and research in the orthopedic community. Further innovation and refinement of plate and screw fixation techniques and materials for diaphyseal fractures are still needed from many orthopedic surgeons.

[0031] Based on this, the present invention proposes an orthopedic internal fixation plate system that eliminates the need for fixation screws, and removes the steps of drilling, tapping, depth measurement and screwing, thereby shortening the operation time and reducing damage to the bone, thus reducing surgical risks, promoting faster fracture healing and improving fracture healing effect.

[0032] The following is for reference. Figures 1 to 4 This invention describes an orthopedic internal fixation plate system provided according to an embodiment of the present invention.

[0033] like Figures 1 to 4 As shown, the orthopedic internal fixation plate system according to the present invention can be applied to patients' bone shaft fracture reduction surgery, and can effectively treat bone shaft fractures.

[0034] The structure of the orthopedic internal fixation plate system includes a steel plate 110, a limiting member 130, and a clamp assembly 200.

[0035] The steel plate 110 has a first surface and a second surface, wherein the second surface is for contacting the backbone 300. The first surface is located on one side of the steel plate 110 in the thickness direction, and the second surface is located on the opposite side of the steel plate 110 in the thickness direction. The first surface is provided with protrusions 120, and multiple protrusions 120 are provided, spaced apart along the length of the steel plate 110. It is understood that the number and spacing of the protrusions 120 can be selected according to actual conditions and are not specifically limited here.

[0036] In this embodiment, as Figure 2 and Figure 3 As shown, the steel plate 110 is rectangular, with six protrusions 120 arranged at equal intervals. The protrusions 120 are integrally formed with the steel plate 110 and are nipple-shaped. Viewed vertically, the protrusions 120 are cylindrical. Of course, in other embodiments, it is possible that the protrusions 120 are fixed to the steel plate 110 by screws or threads.

[0037] Furthermore, the steel plate 110 is provided with through holes 111. Specifically, the steel plate 110 has through holes 111 at opposite ends along its length, and the through holes 111 penetrate the steel plate 110 along its thickness direction. In this embodiment, as... Figure 2 and Figure 3 As shown, the through hole 111 is a circular hole, and there is only one through hole 111. Of course, it is not excluded that in other embodiments, there may be two or more through holes 111. The distance between the through hole 111 and the end face of the steel plate 110 along the length direction can be 1 cm.

[0038] One end of the limiting member 130 is provided with a snap-fit ​​portion, and the opposite end of the limiting member 130 along its length direction is provided with an insertion portion. The function of the insertion portion is to penetrate the cortical bone. The limiting members 130 and the through holes 111 are in one-to-one correspondence in number and position. In this embodiment, the steel plate 110 is provided with two through holes 111, one through hole 111 is located at one end of the steel plate 110 along its length direction, and the other through hole 111 is located at the opposite end of the steel plate 110 along its length direction, so the number of limiting members 130 is two. The snap-fit ​​portion is nipple-shaped, specifically, the snap-fit ​​portion adopts a cylindrical stepped structure design. The insertion portion is cylindrical, and the snap-fit ​​portion and the insertion portion are coaxially arranged, and the snap-fit ​​portion and the insertion portion are connected to form the limiting member 130 through an integral molding process. The outer peripheral surface of the insertion portion is not provided with threads.

[0039] The limiting member 130 is provided through the through hole 111 on the steel plate 110, which enables the insertion part to penetrate through a layer of bone cortex, thereby eliminating stress concentration. At this time, the limiting member 130 contacts the inner circumferential surface of the through hole 111, so that the limiting member 130 can only move linearly relative to the steel plate 110 along its extension direction, allowing the limiting member 130 to enter and exit the through hole 111. The locking part is located on the side of the through hole 111 close to the first surface, and the maximum outer diameter of the locking part is greater than the inner diameter of the through hole 111, so that the locking part cannot pass through the through hole 111 on the steel plate 110, allowing the locking part to be locked onto the steel plate 110.

[0040] Multiple clamping assemblies 200 are provided, and the multiple clamping assemblies 200 are provided corresponding to the protrusions 120 and the snap-fit ​​portions. All clamping assemblies 200 are arranged at intervals along the length direction of the steel plate 110. It can be understood that one clamping assembly 200 is provided for each of the two limiting members 130, and one clamping assembly 200 is provided for each protrusion 120 on the steel plate 110. Of course, it is not excluded that one clamping assembly 200 is provided for two or more protrusions 120.

[0041] Each clamp assembly 200 includes a first semi-circular clamp 210 and a second semi-circular clamp 220. The first semi-circular clamp 210 and the second semi-circular clamp 220 are detachably connected, and the first semi-circular clamp 210 and the second semi-circular clamp 220 form an enclosing area. The function of the enclosing area is to enclose the steel plate 110 and the backbone 300, so that the second surface of the steel plate 110 can contact the backbone 300.

[0042] The first semi-circular clamp 210 is provided with a groove. Specifically, the inner surface of the first semi-circular clamp 210 is recessed to form a groove. The function of the groove is to adapt and connect with the protrusion 120 on the steel plate 110 or with the snap-fit ​​portion of the limiting member 130, so that a good snap-fit ​​effect can be formed between the steel plate 110 and the first semi-circular clamp 210, fixing the steel plate 110 and the clamp assembly 200. Furthermore, it also ensures a good snap-fit ​​effect between the limiting member 130 and the first semi-circular clamp 210, fixing the limiting member 130 and the clamp assembly 200. At least one groove is provided, and the number of grooves is determined according to the protrusion 120 or the snap-fit ​​portion. For the protrusion 120 on the steel plate 110, the shape of the groove on the first semi-circular clamp 210 matches the shape of the protrusion 120. For the snap-fit ​​portion of the limiting member 130, the shape of the groove on the first semi-circular clamp 210 matches the shape of the snap-fit ​​portion.

[0043] During the operation, the orthopedic internal fixation plate system is installed at the ideal reduction position of the bone shaft fracture. Specifically, the plate 110 is placed on the periosteum of the bone shaft 300, and the plate 110 and the bone shaft 300 are encircled by multiple clamping components 200. At this time, the second surface of the plate 110 abuts against the bone shaft 300, providing stable support for the bone shaft 300 and helping the fracture site to bear appropriate stress during the healing process, thereby accelerating the healing process. The protrusion 120 on the plate 110 is locked in the groove of the corresponding first half-circle clamp 210, which can prevent the clamping component 200 from sliding relative to the plate 110 and improve the fixation effect of the clamping component 200.

[0044] Simultaneously, the insertion portion of the limiting member 130 is inserted into the bone cortex, ensuring that the steel plate 110 is firmly fixed to the bone 300, preventing slippage and rotation of the steel plate 110, improving the fixation effect of the orthopedic internal fixation plate system on the patient, and promoting faster healing of the fracture site. Moreover, the snap-fit ​​portion of the limiting member 130 is simultaneously snapped into the through hole 111 of the steel plate 110 and the corresponding groove of the first half-ring clamp 210. The groove of the first half-ring clamp 210 and the through hole 111 of the steel plate 110 can both exert a certain limiting effect on the limiting member 130, keeping the limiting member 130 inserted into the bone cortex under the action of the clamp assembly 200, preventing the insertion portion of the limiting member 130 from dislodging from the bone cortex. At the same time, the limiting effect of the through hole 111 can prevent the insertion portion of the limiting member 130 from being over-inserted into the bone cortex, ultimately improving the stability of the orthopedic internal fixation system.

[0045] In the internal fixation surgery of plate 110, a hook-shaped periosteal elevator 400 is used to dissect the nerves, blood vessels, muscles, ligaments and other tissues around the bone shaft 300.

[0046] In some embodiments, such as Figure 2 and Figure 3 As shown, the through hole 111 located at one end of the steel plate 110 along its length is an elongated hole 112, which extends along the length of the steel plate 110, meaning the length direction of the elongated hole 112 is consistent with the length direction of the steel plate 110. In this embodiment, the through hole 111 at one end of the steel plate 110 is a circular hole, and a corresponding limiting member 130 is provided for this circular hole. The through hole 111 at the other end of the steel plate 110 is an elongated hole 112, and a corresponding limiting member 130 is provided for this elongated hole 112.

[0047] Understandably, when the orthopedic internal fixation plate system is implanted into the patient's fracture site, the limiting member 130 can fix the plate 110 and prevent the plate 110 from slipping or rotating. Moreover, during the fracture healing process, as the bone necrosis at the fracture site is absorbed and the muscles contract, the limiting member 130 and the corresponding clamp assembly 200, which are relatively fixed to the lower bone shaft 300, will slide upward relative to the plate 110 along the elongated hole 112. This can eliminate stress shielding and achieve a dynamic and static fixation mode, which promotes pressure at the fracture site. In other words, dynamic pressure can be applied during movement (i.e., the fracture ends are compressed against each other or separated by load through movement), thereby promoting better fracture healing.

[0048] In some embodiments, the steel plate 110 is rectangular and at least one steel plate 110 is provided. It is understood that when there are two or more steel plates 110, all the steel plates 110 are arranged around the backbone 300, and the steel plates 110 are arranged close to the first half-ring clamp 210 and opposite to the second half-ring clamp 220. At this time, the inner side of the first half-ring clamp 210 is provided with multiple sets of grooves to respectively engage with the protrusions 120 on the multiple steel plates 110 and the engaging parts of the limiting members 130.

[0049] This embodiment takes into account the compression of the bone shaft 300 by the fixation of the steel plate 110, and facilitates the placement of the steel plate 110 on the periosteum surface or on the bone shaft cortex after the periosteum is peeled off. The above-mentioned design of using multiple steel plates 110 for internal fixation on multiple sides of the bone shaft 300 can not only improve the contact area between the steel plate 110 and the bone shaft 300 and achieve multi-directional fixation, but also effectively cope with complex types of fractures.

[0050] In some embodiments, one end of the first semi-circular clamp 210 and one end of the second semi-circular clamp 220 are movably connected. For example, one end of the first semi-circular clamp 210 is movably connected to one end of the second semi-circular clamp 220 via a hinge shaft, and the other ends of the first semi-circular clamp 210 and the second semi-circular clamp 220 are connected by a snap-fit ​​connection. Of course, in other embodiments, it is not excluded that the first semi-circular clamp 210 and the second semi-circular clamp 220 are fixedly connected by bolts.

[0051] Specifically, such as Figure 1 As shown, one end of the first semi-circular clamp 210 is bent at a certain angle toward the inside of the first semi-circular clamp 210 to form a first hook portion 211. The other end of the first semi-circular clamp 210 is provided with a plurality of first hook holes 212, which penetrate the inner and outer surfaces of the first semi-circular clamp 210. The plurality of first hook holes 212 are arranged at intervals along the circumference of the first semi-circular clamp 210. In this embodiment, the number of first hook holes 212 is two. One end of the second semi-circular clamp 220 is provided with a second hook hole 221, which penetrates the inner and outer surfaces of the second semi-circular clamp 220. The other end of the second semi-circular clamp 220 is bent at a certain angle toward the inside of the second semi-circular clamp 220 to form a second hook portion 223.

[0052] When connecting the first half-ring clamp 210 and the second half-ring clamp 220, the first hook 211 is inserted into the second hook hole 221, so that the first hook 211 and one end of the second half-ring clamp 220 are connected by a snap-fit. The second hook 223 is inserted into any one of the first hook holes 212, so that the second hook 223 and the other end of the first half-ring clamp 210 are connected by a snap-fit, and finally the first half-ring clamp 210 and the second half-ring clamp 220 are connected by a snap-fit ​​to form the clamp assembly 200, and the steel plate 110 is pressed tightly against the backbone 300.

[0053] Furthermore, such as Figure 1 and Figure 4 As shown, the other end of the second half-ring clamp 220 is provided with a through hole 222. The through hole 222 passes through the inner and outer sides of the second half-ring clamp 220. The through hole 222 is located near the second hook part 223. Both the first hook hole 212 and the through hole 222 have an inner diameter for the tip of the locking pliers 500 to pass through.

[0054] Understandably, after the first hook 211 is hooked into the second hook hole 221, the second hook 223 is hooked into the first hook hole 212, and the locking pliers 500 are used to lock the second hook 223. Specifically, one tip of the locking pliers 500 is inserted into the first hook hole 212, and the other tip of the locking pliers 500 is inserted into the through hole 222. By bringing the two tips of the locking pliers 500 together, a certain pressure is applied to the second hook 223, causing the second hook 223 to bend toward the inner side of the second half-ring 220, so that the second hook 223 is tightly locked onto the first half-ring 210. When it is necessary to disassemble the clamp assembly 200, the second hook 223 is also pressured by the locking pliers 500, causing the second hook 223 to bend toward the inner side away from the second half-ring clamp 220, so that the second hook 223 can disengage from the first hook hole 212, thereby releasing the snap-fit ​​connection between the first half-ring clamp 210 and the second half-ring clamp 220.

[0055] In the orthopedic internal fixation plate system provided in this embodiment of the invention, multiple clamping assemblies 200 are arranged along the length of the steel plate 110. These assemblies are connected via a first semi-circular clamp 210 and a second semi-circular clamp 220 to encircle the steel plate 110 and the bone shaft 300, ensuring tight contact between the steel plate 110 and the bone shaft 300 through its second surface. This effectively fixes the fracture site and promotes fracture healing. The protrusions 120 on the first surface of the steel plate 110 can engage with the grooves on the corresponding first semi-circular clamps 210, fixing the steel plate 110 to the corresponding clamping assembly 200 and preventing slippage of the clamping assembly 200 relative to the steel plate 110, thus enhancing orthopedic internal fixation. The fixation effect of the fixed steel plate system: Through holes 111 are provided at both ends of the steel plate 110 along the length direction. A limiting member 130 is provided at the through hole 111. The insertion part of the limiting member 130 passes through the through hole 111 and can penetrate the cortex on the bone shaft 300, so that the limiting member 130 is relatively fixed to the bone shaft 300. Moreover, the snap-fit ​​part of the limiting member 130 snaps with the groove on the corresponding first half-ring clamp 210, so that the limiting member 130 is fixed relative to the first half-ring clamp 210. At the same time, the limiting member 130 can provide a good and firm fixation effect on the steel plate 110 relative to the bone shaft 300, preventing the steel plate 110 from slipping, rotating or other displacement problems, which would affect the rapid healing of the bone shaft 300.

[0056] The orthopedic internal fixation plate system provided in this embodiment of the invention eliminates the need for screws to fix the plate 110, thus omitting multiple steps involved in screw implantation during bone shaft fracture reduction surgery, such as drilling, tapping, depth measurement, and screw tightening, shortening the operation time. Furthermore, it avoids stress concentration and stress shielding caused by screw fixation, and overcomes the problems of callus growth, screw and plate 110 breakage when screw fixation is removed, reducing damage to the bone.

[0057] Furthermore, the limited contact area between the steel plate 110 and the bone can be further optimized. By placing multiple steel plates 110, multi-directional fixation can be achieved to address complex fracture conditions. This satisfies both early static fixation and dynamic fixation that promotes fracture healing, achieving effective early stable biological fixation and effective dynamic fixation in the later stages. Moreover, disassembly is simple in the later stages, avoiding situations such as slippage or steel plate 110 being left in the body.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An orthopedic internal fixation plate system, characterized in that, include: A steel plate (110) has a first surface and a second surface for contacting a backbone (300), the first surface and the second surface being located on opposite sides of the steel plate (110) in the thickness direction, the first surface having a plurality of protrusions (120) spaced apart along the length direction of the steel plate (110), and through holes (111) being provided at opposite ends of the steel plate (110) in the length direction, the through holes (111) penetrating the steel plate (110) along the thickness direction of the steel plate (110). The limiting member (130) has a snap-fit ​​part at one end and an insertion part for drilling through the cortex of the bone shaft at the other end. The limiting member (130) corresponds one-to-one with the through hole (111). The limiting member (130) passes through the through hole (111) and the snap-fit ​​part is located on the side of the through hole (111) close to the first surface and can be snapped onto the steel plate (110). A clamp assembly (200) is provided with multiple clamps corresponding to the protrusion (120) and the snap-fit ​​portion, and is arranged at intervals along the length direction of the steel plate (110). The clamp assembly (200) includes a first half-ring clamp (210) and a second half-ring clamp (220). The first half-ring clamp (210) and the second half-ring clamp (220) are detachably connected and form a surrounding area for circling the steel plate (110) and the backbone (300) so that the steel plate (110) contacts the backbone (300). The inner side of the first half-ring clamp (210) is provided with a groove for adapting and connecting with the protrusion (120) or the snap-fit ​​portion.

2. The orthopedic internal fixation plate system according to claim 1, characterized in that, The snap-fit ​​portion is nipple-shaped.

3. The orthopedic internal fixation plate system according to claim 2, characterized in that, The insertion part is cylindrical.

4. The orthopedic internal fixation plate system according to claim 2, characterized in that, The protrusion (120) is nipple-shaped.

5. The orthopedic internal fixation plate system according to claim 4, characterized in that, The protrusion (120) is integrally formed with the steel plate (110).

6. The orthopedic internal fixation plate system according to claim 1, characterized in that, The through hole (111) located at one end of the steel plate (110) in the length direction is an elongated hole (112), which extends along the length direction of the steel plate (110).

7. The orthopedic internal fixation plate system according to claim 1, characterized in that, The steel plate (110) is rectangular; the steel plate (110) is provided with at least one piece.

8. The orthopedic internal fixation plate system according to claim 1, characterized in that, One end of the first semi-circular clamp (210) is movably connected to one end of the second semi-circular clamp (220), and the other end of the first semi-circular clamp (210) is snapped together with the other end of the second semi-circular clamp (220).

9. The orthopedic internal fixation plate system according to claim 8, characterized in that, One end of the first semi-circular clamp (210) is bent inward to form a first hook (211), and the other end of the first semi-circular clamp (210) is provided with a plurality of first hook holes (212). One end of the second semi-circular clamp (220) is provided with a second hook hole (221), and the other end of the second semi-circular clamp (220) is bent inward to form a second hook (223). The first hook (211) passes through the second hook hole (221), and the second hook (223) passes through any of the first hook holes (212), so that the first semi-circular clamp (210) and the second semi-circular clamp (220) are snapped together.

10. The orthopedic internal fixation plate system according to claim 9, characterized in that, The other end of the second half-ring clamp (220) is provided with a through hole (222), which is located near the second hook (223). Both the first hook hole (212) and the through hole (222) have an inner diameter for the tip of the locking pliers (500) to pass through.

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