A time-regulated axial micro-motion bone plate

Abstract

The present invention provides a time-regulated axial micro-motion bone plate, belonging to the field of medical devices. It includes a main body unit and an adjustment unit. The main body unit includes a plurality of bone plate main bodies; the adjustment unit includes a rectangular block. Rectangular grooves are formed in the middle of each of the plurality of bone plate main bodies, and the rectangular block is slidably connected to the inner wall of the rectangular groove. Screws are threadedly connected to the bone plate main bodies, and the screws are threadedly inserted through the middle of the rectangular block. A fixing piece is fixedly connected to the upper end of the rectangular block, and a degrading piece is fixedly connected to the upper end of the fixing piece. A limiting groove that cooperates with the fixing piece and the degrading piece is formed in the bone plate main body. By using the degrading piece as a time-varying switch and utilizing the degradation time, the time for the axial micro-motion of the bone plate main body is regulated. Moreover, the magnitude of the micro-motion can be arbitrarily adjusted for each screw hole, which can achieve the optimal mechanical environment for fracture healing and is more conducive to the stress transmission of long bones, reducing stress shielding.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more specifically, to an axially micro-moving bone plate with time regulation. Background Art

[0002] At present, the treatment methods for FSF mainly include conservative treatment and surgical treatment. Conservative treatment is mostly used for patients who cannot tolerate surgery. The treatment course is long, and local fracture complications such as malunion, lower limb dysfunction, nonunion, etc. and long-term bedridden complications are likely to occur. Surgical treatment is further divided into external fixation and internal fixation. The internal fixation treatment method is mainly an open reduction and internal fixation surgery with implants such as intramedullary nails, bone plates, and bridging combinations as the fixation materials. Intramedullary nails have the advantages of minimally invasive, axial fixation, and enabling early postoperative functional exercise.

[0003] At present, during the use of traditional bone plates, it is not easy to provide stable mechanical support in the early stage of fracture, and most bone plates have only one part that can undergo micro-movement, and it is not easy to provide sufficient micro-movement loads between each screw hole, resulting in the bone plate being unable to better promote bone growth and unable to regulate the time of axial micro-movement of the bone plate. Summary of the Invention

[0004] Aiming at the problem in the prior art that most bone plates have only one part that can undergo micro-movement, it is not easy to provide sufficient micro-movement loads between each screw hole, resulting in the bone plate being unable to better promote bone growth and unable to regulate the time of axial micro-movement of the bone plate, the purpose of the present invention is to provide an axially micro-moving bone plate with time regulation.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] An axially micro-moving bone plate with time regulation includes a main body unit and an adjustment unit. The main body unit includes a plurality of bone plate main bodies; the adjustment unit includes a rectangular block. Rectangular grooves are opened in the middle of each of the plurality of bone plate main bodies, and the rectangular block is slidably connected to the inner wall of the rectangular groove. Screws are threadedly connected to the bone plate main bodies, and the screws are threadedly inserted through the middle of the rectangular block. A fixing piece is fixedly connected to the upper end of the rectangular block, a degrading piece is fixedly connected to the upper end of the fixing piece, a limiting groove that cooperates with the fixing piece and the degrading piece is opened on the bone plate main body, and a limiting component is arranged on the bone plate main body.

[0007] Optionally, a moving plate is slidably connected to the left side of the upper end of the degrading piece, a connecting film is fixedly connected between the inner wall of the limiting groove and the moving plate, and the bottom end of the connecting film is in mutual contact with both the degrading piece and the top inner wall of the limiting groove.

[0008] Optionally, the left end of the movable plate is symmetrically and fixedly connected with first L-shaped sliders, the left side of the bone plate body is symmetrically and fixedly connected with baffles, a first L-shaped chute that cooperates with the first L-shaped sliders is opened in the middle of each baffle, and the two baffles are respectively opposite to the top and bottom of the connecting membrane.

[0009] Optionally, the lower ends of the plurality of bone plate bodies are symmetrically and fixedly connected with second T-shaped sliders front and back, the upper ends of the plurality of bone plate bodies are opened with second T-shaped chutes that cooperate with the second T-shaped sliders, the second T-shaped sliders are slidably connected in the second T-shaped chutes, one end of the second T-shaped chute is penetrated, and the other end of the second T-shaped chute is not penetrated.

[0010] Optionally, the limiting component includes an L-shaped rack plate, a cavity is opened in the middle of the bone plate body, the L-shaped rack plate is slidably connected to the inner wall of the cavity, the upper end of the L-shaped rack plate is symmetrically and fixedly connected with pins, a first slot that cooperates with the pins is opened at the lower end of the second T-shaped slider, the L-shaped rack plate is slidably connected to the inner wall of the cavity, a plurality of inserting blocks are fixedly connected to the lower end of the L-shaped rack plate, a second slot that cooperates with the inserting blocks is opened at the upper end of the movable plate, a connecting rod is rotatably connected to the inner wall of the cavity, the connecting rod penetrates through the bone plate body, a gear is fixedly connected to the outer side of the connecting rod, the gear meshes with the L-shaped rack plate and the T-shaped rack plate, and a cross slot is opened at the left end of the connecting rod.

[0011] Optionally, a fixing block is fixedly connected to the inner wall of the cavity, the fixing block is made of rubber material, a round hole is opened in the middle of the fixing block, the cross-sectional diameter of the connecting rod is larger than the cross-sectional diameter of the round hole, the connecting rod is inserted into the round hole, and a rubber sleeve is fixedly connected to the outer wall of the part of the connecting rod inserted into the round hole.

[0012] Optionally, a connecting block is fixedly connected to the upper end of the degradation sheet, the top of the connecting block is attached to the top inner wall of the limiting slot, the material of the connecting block is the same as that of the degradation sheet, a first spring is fixedly connected between the top inner wall of the limiting slot and the fixing sheet, the first spring is arranged in the middle of the connecting block, and the first spring is in a stretched state.

[0013] Optionally, trapezoidal blocks are symmetrically and slidably connected to the middle of the screw, one side wall of the trapezoidal block is in contact with one side wall of the rectangular block, placement grooves are symmetrically opened in the middle of the screw, the trapezoidal blocks are slidably arranged in the placement grooves, and a second spring is fixedly connected between the bottom inner wall of the placement groove and the trapezoidal block.

[0014] Optionally, the same connecting rope is fixedly connected between the two trapezoidal blocks, a pull rope is fixedly connected to the left end of the connecting rope, a pull block is fixedly connected to the left end of the pull rope, a circular groove is opened at the left end of the screw, and the pull block is placed in the circular groove.

[0015] Optionally, the main body of the bone plate is symmetrically provided with through holes on the left and right. The through holes are oval, and the screws are inserted in the middle of the through holes.

[0016] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0017] In the above solution, by using the degradation sheet as a time-varying switch, the degradation time is utilized to control the time when the main body of the bone plate undergoes axial micro-movement. Moreover, for each screw hole, the magnitude of the micro-movement can be arbitrarily adjusted, which can achieve the optimal mechanical environment for fracture healing and is more conducive to the stress transfer of long bones, reducing stress shielding.

[0018] When it is necessary to adjust the speed for different patients and fracture sites, that is, only need to adjust the contact area between the degradation sheet and the outside, pull the moving plate, and adjust the moving plate to a position suitable for the fracture healing speed of the patient. By adjusting the contact area between the degradation sheet and the outside, the contact area of the degradation sheet is proportional to the degradation speed of the degradation sheet, and the degradation sheet can be protected through the connecting film to prevent the degradation sheet from being degraded instantaneously, which is convenient for rapid healing of different patients and fracture sites.

[0019] Slide the two second-shaped sliders at the lower end of the main body of the bone plate into the second-shaped chutes at the upper end of another main body of the bone plate respectively. Subsequently, splice the other main bodies of the bone plate in the above installation manner in sequence, so that the lengths of multiple main bodies of the bone plate are spliced to a size suitable for the patient, which can adapt to the lengths of different fracture sites of different patients. Then, insert a professional tool into the cross slot on the connecting rod and turn the professional tool, so that the connecting rod rotates. While the connecting rod rotates, it drives, so that the driving-shaped rack plate moves upward, and the shaped rack plate drives the pin to insert into the first slot at the lower end of the second-shaped slider to fix the main body of the bone plate, which is convenient for the installation, disassembly and storage of the main body of the bone plate.

[0020] When the connecting block is gradually degraded, that is, the connecting block is gradually degraded from the bottom, the first spring inside the fixed block is gradually exposed. Since the first spring is in a stretched state, the first spring can have a pulling force on the fixed piece. Under the pulling force of the first spring, the auxiliary force and stability of the micro-movement adjustment of the rectangular block can be improved, which is convenient for realizing fracture healing and stress transfer of long bones. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 For the present invention Figure 1 Front elevation sectional structure schematic diagram;

[0024] Figure 3 For the present invention Figure 2 Enlarged structure schematic diagram at position A;

[0025] Figure 4 Schematic diagram of the rectangular block, screw, fixing piece and degrading piece of the present invention;

[0026] Figure 5 Schematic diagram of the moving plate, first T-shaped slider, baffle and first T-shaped chute of the present invention;

[0027] Figure 6 For the present invention Figure 1 Left elevation sectional structure schematic diagram;

[0028] Figure 7 For the present invention Figure 6 Enlarged structure schematic diagram at position B;

[0029] Figure 8 Schematic diagram of the limiting component of the present invention;

[0030] Figure 9 Schematic diagram of the sectional structure of the bone plate main body of the present invention;

[0031] Figure 10 Schematic diagram of the second T-shaped slider and second T-shaped chute of the present invention.

[0032] [Reference numerals]

[0033] 100, main body unit; 101, bone plate main body; 200, adjusting unit; 201, rectangular block; 202, rectangular groove; 203, screw; 204, fixing piece; 205, degrading piece; 206, limiting groove; 207, moving plate; 208, connecting film; 209, first T-shaped slider; 210, baffle; 211, first T-shaped chute; 212, second T-shaped slider; 213, second T-shaped chute; 214, limiting component; 214a, L-shaped rack plate; 214b, cavity; 214c, plug; 214d, T-shaped rack plate; 214e, insertion block; 214f, connecting rod; 214h, cross groove; 214g, gear; 215, fixing block; 216, first spring; 217, trapezoidal block; 218, placement groove; 219, second spring; 220, connecting rope; 221, pulling rope; 222, pulling block; 223, circular groove; 224, through hole; 225, connecting block.

[0034] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device, and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed Description of the Embodiments

[0035] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0036] It should be noted that in the specification, the mention of "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. indicates that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe specific features, structures, or characteristics, implementing such features, structures, or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0037] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that may not be explicitly described.

[0038] It can be understood that the meanings of "on", "above", and "over" in the present invention should be interpreted in the broadest manner, such that "on" not only means "directly on" something, but also includes the meaning of being "on" something with intermediate features or layers therebetween, and "above" or "over" not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intermediate features or layers therebetween.

[0039] In addition, spatial relative terms such as "under", "below", "lower part", "above", "upper part", etc. may be used in this text for convenience of description to describe the relationship between one element or feature and another or more elements or features, as shown in the accompanying drawings. The spatial relative terms are intended to cover different orientations during the use or operation of the device in addition to the orientation depicted in the drawings. The device can be oriented in other ways, and the spatial relative descriptive words used in this text can be similarly interpreted accordingly.

[0040] As Figures 1 to 10 shown, an embodiment of the present invention provides a time-regulated axial micro-motion bone plate, which includes a main body unit 100 and an adjustment unit 200. The main body unit 100 includes a plurality of bone plate main bodies 101; the adjustment unit 200 includes a rectangular block 201. A rectangular groove 202 is formed in the middle of each of the plurality of bone plate main bodies 101. The rectangular block 201 is slidably connected to the inner wall of the rectangular groove 202. A screw 203 is threadedly connected to the bone plate main body 101. The screw 203 is threadedly inserted through the middle of the rectangular block 201. A fixing piece 204 is fixedly connected to the upper end of the rectangular block 201. A degradation piece 205 is fixedly connected to the upper end of the fixing piece 204. A limiting groove 206 that cooperates with the fixing piece 204 and the degradation piece 205 is formed in the bone plate main body 101. A limiting component 214 is provided on the bone plate main body 101.

[0041] By adopting the above technical solution, with the degradation piece 205 as a time-varying switch, the time for the axial micro-motion of the bone plate main body 101 is regulated by using the degradation time. Moreover, the magnitude of the micro-motion can be arbitrarily adjusted for each screw hole, which can achieve the optimal mechanical environment for fracture healing, is more conducive to the stress transfer of long bones, reduces stress shielding, and the size of the degradation piece 205 is approximately 0.2 - 1 mm.

[0042] As Figure 4 shown, a moving plate 207 is slidably connected to the left side of the upper end of the degradation piece 205. A connecting film 208 is fixedly connected between the inner wall of the limiting groove 206 and the moving plate 207. The bottom end of the connecting film 208 is in mutual fit with both the degradation piece 205 and the top inner wall of the limiting groove 206.

[0043] By adopting the above technical solution, when it is necessary to adjust the speed for different patients and fracture sites, that is, only the contact area between the degradation piece 205 and the outside needs to be adjusted. Pull the moving plate 207 and adjust the moving plate 207 to a position suitable for the fracture healing speed of the patient to adjust the contact area between the degradation piece 205 and the outside. The contact area of the degradation piece 205 is proportional to the degradation speed of the degradation piece 205, and the degradation piece 205 can be protected by the connecting film 208 to avoid the instantaneous degradation of the degradation piece 205, which is convenient for rapid healing at different patients and fracture sites.

[0044] As shown Figure 5 in the figure, the left end of the moving plate 207 is symmetrically and fixedly connected with a first T-shaped slider 209. The left side of the bone plate main body 101 is symmetrically and fixedly connected with a baffle 210. A first T-shaped chute 211 that cooperates with the first T-shaped slider 209 is provided in the middle of the baffle 210. The two baffles 210 are respectively opposite to the top and bottom of the connecting film 208.

[0045] By adopting the above technical solution, when the moving plate 207 is pulled, the moving plate 207 can drive the first T-shaped slider 209 to slide in the baffle 210, which is more conducive to the adjustment of the moving plate 207. Moreover, the sliding of the first T-shaped slider 209 in the baffle 210 can also improve the stability of the moving plate 207 during the adjustment process. Since the baffles 210 are respectively opposite to the top and bottom of the connecting film 208, the baffles 210 can also increase the sealing performance of the connecting film 208.

[0046] As shown Figure 10 in the figure, the lower ends of multiple bone plate main bodies 101 are symmetrically and fixedly connected with second T-shaped sliders 212 before and after. Second T-shaped chutes 213 that cooperate with the second T-shaped sliders 212 are provided at the upper ends of multiple bone plate main bodies 101. The second T-shaped sliders 212 are slidably connected in the second T-shaped chutes 213. One end of the second T-shaped chute 213 is through, and the other end of the second T-shaped chute 213 is not through.

[0047] By adopting the above technical solution, the two second T-shaped sliders 212 at the lower end of the bone plate main body 101 are respectively slid into the second T-shaped chutes 213 at the upper end of another bone plate main body 101. Subsequently, the other bone plate main bodies 101 are spliced in sequence according to the above installation method, so that the lengths of multiple bone plate main bodies 101 are spliced to a size suitable for the patient, which can adapt to the lengths of different fracture parts of different patients, and is also convenient for the installation, disassembly and storage of the bone plate main body 101.

[0048] As shown Figure 7 and Figure 8As shown, the limit component 214 includes an L-shaped rack plate 214a. A cavity 214b is formed in the middle of the bone plate main body 101. The L-shaped rack plate 214a is slidably connected to the inner wall of the cavity 214b. The upper end of the L-shaped rack plate 214a is symmetrically and fixedly connected with pins 214c. The lower end of the second T-shaped slider 212 is provided with a first slot that cooperates with the pins 214c. A T-shaped rack plate 214d is slidably connected to the inner wall of the cavity 214b. The lower end of the T-shaped rack plate 214d is fixedly connected with a plurality of insertion blocks 214e. The upper end of the moving plate 207 is provided with a second slot that cooperates with the insertion blocks 214e. A connecting rod 214f is rotatably connected to the inner wall of the cavity 214b. The connecting rod 214f penetrates the bone plate main body 101. A gear 214g is fixedly connected to the outside of the connecting rod 214f. The gear 214g meshes with the L-shaped rack plate 214a and the T-shaped rack plate 214d. A cross slot 214h is formed at the left end of the connecting rod 214f.

[0049] By adopting the above technical solution, a professional tool is inserted into the cross slot 214h on the connecting rod 214f. Subsequently, the professional tool is rotated to make the connecting rod 214f rotate. While the connecting rod 214f rotates, it drives the gear 214g, so that the gear 214g simultaneously drives the L-shaped rack plate 214a and the T-shaped rack plate 214d. The upward movement of the L-shaped rack plate 214a drives the pins 214c, so that the pins 214c are inserted into the first slot at the lower end of the second T-shaped slider 212 to fix the bone plate main body 101, which is convenient for the installation and disassembly of the bone plate main body 101. And the gear 214g can also drive the T-shaped rack plate 214d, so that the T-shaped rack plate 214d drives a plurality of insertion blocks 214e to move downward, so that one of the insertion blocks 214e is inserted into the second slot on the moving plate 207 to fix the moving plate 207.

[0050] As Figure 8 shown, a fixing block 215 is fixedly connected to the inner wall of the cavity 214b. The fixing block 215 is made of rubber material. A round hole is formed in the middle of the fixing block 215. The cross-sectional diameter of the connecting rod 214f is larger than the cross-sectional diameter of the round hole. The connecting rod 214f is inserted into the round hole. A rubber sleeve is fixedly connected to the outer wall of the part of the connecting rod 214f inserted into the round hole.

[0051] By adopting the above technical solution, since rubber sleeves are fixedly connected to the inner wall of the round hole on the fixing block 215 and the connecting rod 214f, the two rubber sleeves are in close contact with each other, which can increase the friction between the connecting rod 214f and the fixing block 215, thereby restricting the connecting rod 214f and preventing the connecting rod 214f from rotating randomly.

[0052] As Figure 3As shown, a connection block 225 is fixedly connected to the upper end of the degradation piece 205. The top of the connection block 225 is in contact with the inner wall of the top of the limit groove 206. The material of the connection block 225 is the same as that of the degradation piece 205. A first spring 216 is fixedly connected between the inner top wall of the limit groove 206 and the fixed piece 204. The first spring 216 is arranged in the middle of the connection block 225, and the first spring 216 is in a stretched state.

[0053] By adopting the above technical solution, when the connection block 225 is gradually degraded, that is, the connection block 225 is gradually degraded from the bottom, the first spring 216 inside the fixed block 215 is gradually exposed. Since the first spring 216 is in a stretched state, the first spring 216 can exert a pulling force on the fixed piece 204. Under the pulling force of the first spring 216, the auxiliary force and stability of the fine adjustment of the rectangular block 201 can be improved, which is convenient for realizing fracture healing and stress transmission of long bones.

[0054] As Figure 4 shown, trapezoidal blocks 217 are symmetrically and slidably connected to the middle of the screw 203. One side wall of the trapezoidal block 217 is in contact with one side wall of the rectangular block 201. Placement grooves 218 are symmetrically formed in the middle of the screw 203. The trapezoidal blocks 217 are slidably arranged in the placement grooves 218. A second spring 219 is fixedly connected between the inner bottom wall of the placement groove 218 and the trapezoidal blocks 217.

[0055] By adopting the above technical solution, when the screw 203 is installed, when the screw 203 passes through the rectangular block 201, the trapezoidal block 217 is compressed into the placement groove 218, and the second spring 219 is in a compressed state. When the trapezoidal block 217 in the screw 203 completely passes through the rectangular block 201, the second spring 219 rebounds to make the trapezoidal block 217 pop out and fit with the side wall of the rectangular block 201, thereby limiting the screw 203 to prevent the screw 203 from rotating during use.

[0056] As Figure 4 shown, the same connection rope 220 is fixedly connected between the two trapezoidal blocks 217. The left end of the connection rope 220 is fixedly connected with a pull rope 221. The left end of the pull rope 221 is fixedly connected with a pull block 222. A circular groove 223 is formed at the left end of the screw 203. The pull block 222 is placed in the circular groove 223.

[0057] By adopting the above technical solution, by driving the pull rope 221 through the pull block 222, the pull rope 221 drives the two connection ropes 220. Under the pulling force of the connection ropes 220, the trapezoidal blocks 217 can slide into the placement grooves 218, releasing the limit on the screw 203 and facilitating the subsequent removal of the screw 203.

[0058] As Figure 9As shown, the bone plate main body 101 is symmetrically provided with through openings 224 on the left and right. The through openings 224 are oval-shaped, and the screw 203 is inserted in the middle of the through openings 224.

[0059] By adopting the above technical solution, when the degradation sheet 205 is degraded, the screw 203 can be finely adjusted through the through opening 224.

[0060] The working process of the technical solution provided by the present invention is as follows:

[0061] During use, the two second T-shaped sliders 212 at the lower end of the bone plate main body 101 are respectively slid into the second T-shaped chutes 213 at the upper end of another bone plate main body 101. Subsequently, the other bone plate main bodies 101 are sequentially spliced according to the above installation method, so that the lengths of the multiple bone plate main bodies 101 are spliced to a size suitable for the patient.

[0062] When it is necessary to adjust the speed for different patients and fracture sites, pull the moving plate 207. The moving plate 207 can drive the first T-shaped slider 209 to slide in the baffle 210, which is more conducive to the adjustment of the moving plate 207. Moreover, the sliding of the first T-shaped slider 209 in the baffle 210 can also improve the stability of the moving plate 207 during the adjustment process. Since the baffle 210 is respectively opposite to the top and bottom of the connecting film 208, the baffle 210 can also increase the sealing performance of the connecting film 208.

[0063] When the moving plate 207 is adjusted to a speed suitable for the patient to recover from the fracture, use a professional tool to insert it into the cross slot 214h on the connecting rod 214f. Subsequently, turn the professional tool to make the connecting rod 214f rotate. While the connecting rod 214f rotates, it drives the gear 214g, so that the gear 214g simultaneously drives the L-shaped rack plate 214a and the T-shaped rack plate 214d. The upward movement of the L-shaped rack plate 214a drives the pin 214c, so that the pin 214c is inserted into the first slot at the lower end of the second T-shaped slider 212 to fix the bone plate main body 101. And the gear 214g can also drive the T-shaped rack plate 214d, so that the T-shaped rack plate 214d drives a plurality of insertion blocks 214e to move downward, so that one of the insertion blocks 214e is inserted into the second slot on the moving plate 207 to fix the moving plate 207. Since rubber sleeves are fixedly connected to the inner wall of the round hole on the fixing block 215 and the connecting rod 214f, and the two rubber sleeves are closely attached to each other, the friction between the connecting rod 214f and the fixing block 215 can be increased, thereby restricting the connecting rod 214f to prevent the connecting rod 214f from rotating randomly. Subsequently, the spliced bone plate main body 101 is used for the fracture patient.

[0064] The degradation sheet 205 serves as a time-varying switch. By utilizing the degradation time, the time for the axial micro-movement of the bone plate main body 101 is regulated. Moreover, for each screw hole, the magnitude of the micro-movement can be adjusted arbitrarily. When the connecting block 225 is gradually degraded, that is, when the connecting block 225 is gradually degraded from the bottom, the first spring 216 inside the fixing block 215 is gradually exposed. Since the first spring 216 is in a stretched state, the first spring 216 can exert a pulling force on the fixing sheet 204. Under the pulling force of the first spring 216, the auxiliary force and stability of the micro-movement adjustment of the rectangular block 201 can be improved, facilitating the realization of fracture healing and stress transmission of long bones.

[0065] When the screw 203 needs to be installed, the screw 203 passes through the rectangular block 201, causing the trapezoidal block 217 to be compressed into the placement groove 218, and the second spring 219 is in a compressed state. When the trapezoidal block 217 in the screw 203 completely passes through the rectangular block 201, the second spring 219 rebounds, causing the trapezoidal block 217 to pop out and fit against the side wall of the rectangular block 201, thereby limiting the screw 203 and preventing the screw 203 from rotating during use. And when the limit on the screw 203 needs to be released, the pulling block 222 drives the pull rope 221, the pull rope 221 drives the two connecting ropes 220. Under the pulling force of the connecting ropes 220, the trapezoidal block 217 can slide into the placement groove 218, releasing the limit on the screw 203 and facilitating the subsequent removal of the screw 203.

[0066] The present invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of the present invention. For the public to have a thorough understanding of the present invention, specific details are elaborated in the preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention even without the description of these details. Additionally, well-known methods, processes, procedures, components, and circuits, etc., are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0067] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A time-controlled axial micro-motion bone plate, comprising a main unit and an adjustment unit, characterized in that: The main body unit includes a plurality of bone plate bodies; The adjusting unit comprises a rectangular block, a plurality of the bone plate bodies are provided with a rectangular groove in the middle, the rectangular block is slidably connected to the inner wall of the rectangular groove, a screw is threadedly connected to the bone plate body, the screw thread is inserted in the middle of the rectangular block, a fixing plate is fixedly connected to the upper end of the rectangular block, a degradation plate is fixedly connected to the upper end of the fixing plate, a limiting groove which cooperates with the fixing plate and the degradation plate is provided on the bone plate body, and a limiting component is arranged on the bone plate body; A movable plate is slidably connected to the left side of the upper end of the degradation sheet, a connecting film is fixedly connected between the inner wall of the limiting groove and the movable plate, and the bottom end of the connecting film is in contact with the degradation sheet and the top inner wall of the limiting groove.

2. The time-controlled axial micro-motion bone plate according to claim 1, characterized in that: A first T-shaped slider is symmetrically fixedly connected to the left end of the movable plate, and a baffle is symmetrically fixedly connected to the left side of the bone fracture plate body. A first T-shaped groove cooperating with the first T-shaped slider is opened in the middle of the baffle, and the two baffles are respectively opposite to the top and bottom of the connecting membrane.

3. The time-controlled axial micro-motion bone plate according to claim 2, characterized in that: The lower ends of the plurality of bone fracture plate bodies are all symmetrically fixedly connected with a second T-shaped slider front and back, and the upper ends of the plurality of bone fracture plate bodies are all provided with a second T-shaped slide groove that cooperates with the second T-shaped slider, and the second T-shaped slide groove is slidably connected in the second T-shaped slide groove, one end of the second T-shaped slide groove is through, and the other end of the second T-shaped slide groove is not through.

4. The time-controlled axial micro-motion bone plate according to claim 3, characterized in that: The limiting assembly includes an L-shaped rack plate, a cavity is opened in the middle of the bone fracture plate body, the L-shaped rack plate is slidably connected to the inner wall of the cavity, the upper end of the L-shaped rack plate is symmetrically fixedly connected with a pin, the lower end of the second T-shaped slider is opened with a first slot that cooperates with the pin, the inner wall of the cavity is slidably connected with a T-shaped rack plate, the lower end of the T-shaped rack plate is fixedly connected with a plurality of plug blocks, the upper end of the movable plate is opened with a second slot that cooperates with the plug blocks, the inner wall of the cavity is rotatably connected with a connecting rod, the connecting rod passes through the bone fracture plate body, the outer side of the connecting rod is fixedly connected with a gear, the gear is meshed with the L-shaped rack plate and the T-shaped rack plate, and a cross groove is opened at the left end of the connecting rod.

5. The time-controlled axial micro-motion bone plate according to claim 4, characterized in that: A fixing block is fixedly connected to the inner wall of the cavity. The fixing block is made of rubber material. A circular hole is opened in the middle of the fixing block. The cross-sectional diameter of the connecting rod is larger than the cross-sectional diameter of the circular hole. The connecting rod is inserted in the circular hole. A rubber sleeve is fixedly connected to the outer wall of the connecting rod inserted in the circular hole.

6. The time-controlled axial micro-motion bone plate according to claim 1, characterized in that: A connecting block is fixedly connected to the upper end of the degradation sheet, the top of the connecting block is in contact with the top inner wall of the limiting groove, the material of the connecting block is the same as that of the degradation sheet, a first spring is fixedly connected between the top wall of the limiting groove and the fixed sheet, the first spring is arranged in the middle of the connecting block, and the first spring is in a stretched state.

7. The time-controlled axial micro-motion bone plate according to claim 1, characterized in that: A trapezoidal block is symmetrically and slidably connected in the middle of the screw, one side wall of the trapezoidal block contacts a side wall of the rectangular block, a placement groove is symmetrically opened in the middle of the screw, the trapezoidal block is slidably set in the placement groove, and a second spring is fixedly connected between the bottom wall of the placement groove and the trapezoidal block.

8. The time-controlled axial micro-motion bone plate according to claim 7, characterized in that: The same connecting rope is fixedly connected between the two trapezoidal blocks, the left end of the connecting rope is fixedly connected to a pull rope, the left end of the pull rope is fixedly connected to a pull block, a circular groove is opened at the left end of the screw, and the pull block is placed in the circular groove.

9. The time-controlled axial micro-motion bone plate according to claim 1, characterized in that: The bone plate body is symmetrically provided with a through opening, the through opening is elliptical, and the screw is inserted in the middle of the through opening.

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