Internal fixation support mounting mechanism based on reinforced bone regeneration

Abstract

The utility model discloses an internal fixation support installation mechanism based on reinforced bone regeneration, and relates to the technical field of orthopedic treatment equipment, the internal fixation support installation mechanism comprises a bone fracture plate body, a biological support, an adjusting support arm and a layering module, the top end of the layering module is fixedly provided with a supporting plate used for placing the bone fracture plate body, and the top end of the supporting plate is provided with an adsorption assembly; the adsorption assembly comprises a guide push plate, a placement frame, a suction cup, a vacuum pipe and a magnetic roller, a motor box for driving the guide push plate to move is fixedly installed at the bottom end of the layering module, and a drilling assembly is arranged at the side end of the motor box and comprises a transfer case, a driving shaft, a universal joint, a drill bit body and a drill chuck. The biological scaffold is of a cylindrical structure, at least two hole channels are formed in the surface of the biological scaffold, the two drill bit bodies are used for drilling holes at the same time, the deviation can be dispersed, mutual reference and correction can be achieved in the drilling process, and therefore the overall drilling precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of orthopedic treatment equipment technology, and in particular to an internal fixation bracket installation mechanism based on enhanced bone regeneration. Background Technology

[0002] Giant bone defects are one of the key and challenging problems faced by orthopedic surgeons. In clinical practice, autologous bone or artificial bone grafts are often used as repair methods. The development of composite biological scaffolds brought about by bone tissue engineering provides a highly promising solution for the repair of bone defects. In practical applications, the equipment usually requires the following technologies.

[0003] 1. Drilling instruments that can drill suitable holes in the bone to insert screws for fixing steel plates;

[0004] 2. Fixation devices, bone plates, and screws are used to fix the fracture position;

[0005] 3. Auxiliary instruments, such as reduction forceps, can be used to reduce and maintain the position of the fracture;

[0006] Using instruments such as bone forceps, the fractured bone ends are reduced to restore the normal anatomical position and force line of the bone. The bone plate is then attached to the bone surface, generally choosing the flatter side of the bone to ensure close contact between the bone plate and the bone. Holes are drilled in the pin holes of the bone plate using an electric drill. Screws of appropriate length and diameter are selected and screwed into the drilled holes with a screwdriver. The bone plate and the bones at both ends of the fracture are fixed in sequence.

[0007] In orthopedic surgery, there are many problems when choosing a flat surface of the bone to attach a bone plate: the attachment relies entirely on the doctor's feel and experience, and the vibration of drilling combined with the hand-held method makes it difficult to ensure that the bone plate is in complete and tight contact with the bone, which is not conducive to recovery. The attachment of the bone plate and the drilling fixation are separated, and the doctor needs to manually switch instruments to adjust, which increases the operation time and the length of time the incision is exposed. Frequent operation can also easily lead to doctor fatigue in the later stage. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides an internal fixation bracket installation mechanism based on enhanced bone regeneration. This solves the problems of relying entirely on the doctor's feel and experience for proper fit, and the difficulty in ensuring complete and tight contact between the bone plate and the bone due to drilling vibration and hand-held operation, which is not conducive to rehabilitation. Furthermore, the separation of the fit bone plate and the drilling fixation requires the doctor to manually switch instruments for adjustment, increasing the operation time and incision exposure time. Frequent operation can also easily lead to doctor fatigue in the later stages.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] The application discloses a kind of based on the internal fixation bracket installation mechanism of reinforced bone regeneration, including bone plate body, biological bracket, adjusting arm and layered module, the top end of the layered module is fixedly installed for placing bone plate body's supporting plate, the top of the supporting plate is provided with suction assembly, the suction assembly includes guiding push plate, placing rack, suction cup, vacuum tube and magnetic roller, the bottom end of the layered module is fixedly installed with motor box for driving guiding push plate movement, the side end of the motor box is provided with drilling assembly, the drilling assembly includes sub-gearbox, drive shaft, universal joint, drill body and drill chuck, the biological bracket is cylindrical structure, at least two holes are provided on the surface of the biological bracket.

[0011] Preferably: the side end of each layered module is fixedly installed with anchor plate for supporting sub-gearbox, the bottom end of the supporting plate is provided with transmission assembly, and the transmission assembly includes transmission rod, sliding butt joint rod, bearing plate and pneumatic telescopic rod;

[0012] The surface of the sub-gearbox is fixedly installed with linear push rod for supporting, the side end of the linear push rod is fixedly installed with moving base plate for driving drill chuck movement, and the surface of the linear push rod is slidably installed with guide rail slide for supporting drill chuck;

[0013] The two side ends of the guide rail slide are fixedly installed with guide assembly, each guide assembly includes guide cover and electric telescopic rod, and the top end of each electric telescopic rod is fixedly connected with pneumatic telescopic rod;

[0014] The top of the supporting plate is fixedly installed with connecting clasp, and the side end of the connecting clasp is rotatably installed with driving lead screw for butt joint with guiding push plate.

[0015] Preferably: the end of each drive shaft is fixedly installed with bevel gear, the middle section of each universal joint is designed to be telescopic, the top end of each universal joint is rotatably connected with the end of drill body, and each drill body is rotatably connected with drill chuck;

[0016] The top end of each transmission rod is rotatably connected with driving screw rod, each transmission rod and sliding butt joint rod are slidably butted, the end of each sliding butt joint rod penetrates the inside of anchor plate downward, and the end of each pneumatic telescopic rod is fixedly connected with the surface of anchor plate;

[0017] The side end of each motor box is rotatably installed with output shaft for butt joint with sub-gearbox, and the surface of each output shaft is fixedly installed with gear ring meshing with the surface of sliding butt joint rod.

[0018] Compared with the prior art, the application has the following beneficial effects:

[0019] The utility model discloses, through continuing to push the rack, let the rack drive the magnetic cylinder leave the surface of the supporting plate, one end of the rack is rotatably connected with the guide push plate, under the action of gravity, the rack drives the bone plate body to overturn, lets the bone plate body be perpendicular to the supporting plate, sticks to the surface of the skeleton, carries out the drilling while installing the bone plate body, can closely link two operations of the bone plate body positioning and drilling, has reduced the transition link in the middle, has shortened the operation time.

[0020] The utility model discloses, through the rotation of the driving shaft, the side end portion of transfer case is equipped with two driving shafts, and the motor box drives two driving shafts to rotate simultaneously, and the driving shaft drives the universal joint to rotate simultaneously, and the tail end of drill bit body is rotatably connected with the universal joint, can drive two drill bit bodies to rotate simultaneously, and two drill bit bodies can drill simultaneously, can disperse this deviation, and can be mutually referred to and corrected in the drilling process, thereby improving the accuracy of overall drilling. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferably the embodiment of the utility model is explained in detail with the drawings.

[0022] Figure 1 It is the schematic diagram of the layered module structure of the present application;

[0023] Figure 2 It is the schematic diagram of the motor box structure of the present application;

[0024] Figure 3 It is the schematic diagram of the rack structure of the present application;

[0025] Figure 4 It is the schematic diagram of the A place of the utility model Figure 3 Enlargement structure;

[0026] Figure 5 It is the schematic diagram of the transfer case structure of the present application;

[0027] Figure 6 It is the schematic diagram of the drill bit body structure of the present application;

[0028] Figure 7 It is the schematic diagram of the guide rail sliding seat structure of the present application;

[0029] Figure 8 It is the schematic diagram of the bone plate body installation of the present application;

[0030] Figure 9 It is the schematic diagram of the biological stent structure of the present application.

[0031] In the diagram, 11. Bone plate body; 12. Biological scaffold; 13. Adjustable support arm; 14. Layered module; 15. Support plate; 16. Connecting bracket; 17. Drive screw; 18. Guide push plate; 19. Placement rack; 21. Suction cup; 22. Vacuum tube; 23. Magnetic roller; 24. Transmission rod; 25. Sliding docking rod; 26. Load-bearing plate; 27. Pneumatic telescopic rod; 28. Anchor plate; 29. ​​Motor box; 31. Output shaft; 32. Gear ring; 33. Transfer case; 34. Drive shaft; 35. Universal joint; 36. Drill bit body; 37. Drill chuck; 38. Guide cover; 39. Electric telescopic rod; 41. Guide rail slide; 42. Moving pad; 43. Linear push rod. Detailed Implementation

[0032] This application provides an internal fixation bracket installation mechanism based on enhanced bone regeneration. It effectively solves the problems of relying solely on the surgeon's feel and experience for proper fit, and the difficulty in ensuring complete and tight contact between the bone plate and bone due to drilling vibration and hand-held operation, which is detrimental to rehabilitation. Furthermore, the separation of the bone plate fit and drilling fixation requires the surgeon to manually switch instruments for adjustment, increasing surgical time and incision exposure time. Frequent operation also easily leads to surgeon fatigue later on. By continuously pushing the placement frame, the magnetic roller is lifted off the surface of the support plate. One end of the placement frame is rotatably connected to a guide push plate. Under the action of gravity, the placement frame rotates the bone plate body, making it perpendicular to the support plate and fit against the bone surface. Drilling is performed simultaneously with the installation of the bone plate body, tightly connecting the bone plate body positioning and drilling operations, reducing intermediate transition steps, and shortening surgical time.

[0033] Example

[0034] like Figure 1 - Figure 9 As shown, the technical solution in this application effectively solves the problems of relying entirely on the doctor's feel and experience for proper fitting, and the difficulty in ensuring complete and tight contact between the bone plate and the bone due to drilling vibration and hand-held operation, which is not conducive to rehabilitation. Furthermore, the separation of the fitting bone plate and the drilling fixation requires the doctor to manually switch instruments for adjustment, increasing surgical operation time and incision exposure time. Frequent operation also easily leads to doctor fatigue later on. The overall approach is as follows:

[0035] The utility model provides a kind of internal fixation support mounting mechanism based on strengthening bone regeneration, including bone plate body 11, biological support 12, adjusting branch 13 and stratification module 14, the top of stratification module 14 is fixedly installed with the supporting plate 15 for placing bone plate body 11, the top of supporting plate 15 is provided with suction assembly, suction assembly includes guide push plate 18, placing rack 19, suction disc 21, vacuum tube 22 and magnetic cylinder 23, by placing bone plate body 11 in the top of placing rack 19, vacuum tube 22 is installed in the side end of placing rack 19, the inside of stratification module 14 and supporting plate 15 is penetrated by the end of vacuum tube 22, is connected with the vacuum pump of outside, generates suction force by vacuum pump, generates negative pressure zone in the inside of suction disc 21, under the force of atmospheric pressure, bone plate body 11 is firmly adsorbed in the inside of placing rack 19;

[0036] By driving guide push plate 18 to move, guide push plate 18 pushes placing rack 19 to slide on the top of supporting plate 15, while placing rack 19 drives magnetic cylinder 23 to move, magnetic cylinder 23 rolls on the surface of supporting plate 15, magnetic cylinder 23 uses strontium ferrite magnetic attraction material, by the adsorption of magnetic cylinder 23, bone plate body 11 and supporting plate 15 can be kept in horizontal state when placing rack 19 is at different angles, by continuing to push placing rack 19, placing rack 19 drives magnetic cylinder 23 to leave the surface of supporting plate 15, one end of placing rack 19 is rotationally connected with guide push plate 18, under the action of gravity, placing rack 19 drives bone plate body 11 to overturn, so that bone plate body 11 is perpendicular to supporting plate 15, and is attached to the surface of bone, by the adsorption positioning of placing rack 19 to bone plate body 11, the stability of bone plate body 11 is increased when drilling, to prevent misplacement;

[0037] The bottom end of the layered module 14 is fixedly installed with a motor box 29 for driving the movement of the guide push plate 18. The side end of the motor box 29 is provided with a drilling assembly, which comprises a transfer case 33, a drive shaft 34, a universal joint 35, a drill body 36 and a drill chuck 37. The end of each drive shaft 34 is fixedly installed with a bevel gear. The middle section of each universal joint 35 is designed to be telescopic. The top end of each universal joint 35 is rotatably connected with the end of the drill body 36. Each drill body 36 is rotatably connected with the drill chuck 37. The side end of the transfer case 33 is installed with two drive shafts 34. The motor box 29 simultaneously drives the rotation of the two drive shafts 34, so as to simultaneously drive the synchronous rotation of the two drill bodies 36. The two drill bodies 36 can simultaneously drill holes, which can disperse the deviation and can be mutually referred and corrected during the drilling process, thereby improving the overall drilling precision. By pushing the drill chuck 37 to move upward, the drill chuck 37 drives the drill body 36 to move upward, and at the same time, the other drill body 36 slides downward, so that the two drill bodies 36 move in opposite directions. By adjusting the positions of the two drill bodies 36, the drilling position can be adjusted according to the installation position of different bones.

[0038] The top end of the supporting plate 15 is fixedly installed with a connecting seat 16. The side end of the connecting seat 16 is rotatably installed with a drive lead screw 17 which is in butt joint with the guide push plate 18. The top end of the drive lead screw 17 is installed with a bevel gear. The drive lead screw 17 drives the guide push plate 18 to slide along the fixed track.

[0039] The side end of each layered module 14 is fixedly installed with an anchor plate 28 for supporting the transfer case 33. The bottom end of the supporting plate 15 is provided with a transmission assembly, which comprises a transmission rod 24, a sliding butt joint rod 25, a bearing plate 26 and a pneumatic telescopic rod 27. The top end of each transmission rod 24 is rotatably connected with the drive lead screw 17. The end of each sliding butt joint rod 25 penetrates the inside of the anchor plate 28 downward. By driving the pneumatic telescopic rod 27, the pneumatic telescopic rod 27 is telescopic at the top end of the anchor plate 28, and at the same time, the pneumatic telescopic rod 27 drives the bearing plate 26 to move downward, so that the sliding butt joint rod 25 slides downward in the inside of the anchor plate 28. The end of the sliding butt joint rod 25 guides the transmission rod 24 to slide downward vertically. The end of the sliding butt joint rod 25 is in butt joint with the surface of the gear ring 32. The transmission rod 24 is driven to rotate, and at the same time, the transmission rod 24 drives the drive lead screw 17 to rotate.

[0040] The side end of each motor box 29 is rotatably installed with an output shaft 31 which is in butt joint with the transfer case 33. The surface of each output shaft 31 is fixedly installed with a gear ring 32 which is in mesh with the surface of the sliding butt joint rod 25. The output shaft 31 drives the two drive shafts 34 to rotate in the inside of the transfer case 33. At the same time, the gear ring 32 is in mesh with the end of the sliding butt joint rod 25, so as to drive the sliding butt joint rod 25 to rotate in the inside of the anchor plate 28.

[0041] The surface of the transfer box 33 is fixedly installed with a linear push rod 43 for supporting, the side end of the linear push rod 43 is fixedly installed with a moving base plate 42 for driving the drill chuck 37 to move, the surface of the linear push rod 43 is slidably installed with a guide rail slide 41 for supporting the drill chuck 37, the two side ends of the guide rail slide 41 are fixedly installed with a guide assembly, each guide assembly comprises a guide cover 38 and an electric telescopic rod 39, the top end of each electric telescopic rod 39 is fixedly connected with the pneumatic telescopic rod 27, and each electric telescopic rod 39 is installed in the guide cover 38, and the electric telescopic rod 39 is driven to extend and retract through the moving base plate 42, the top end of the moving base plate 42 pushes the guide rail slide 41 to slide, so that the guide rail slide 41 drives the two drill body 36 to slide horizontally, and the two electric telescopic rods 39 are driven to extend and retract at the same time, and the guide cover 38 is a multi-section telescopic hard structure, the guide cover 38 guides the movement of the pneumatic telescopic rod 27, so that the two pneumatic telescopic rods 27 move in the same plane.

[0042] Working principle:

[0043] First step, use power tools such as electric drill or bone saw to drill or groove at the selected implant point, prepare a bone bed matched with the shape and size of the biological scaffold 12, load the pretreated biological scaffold 12 to the special pusher, and slowly and accurately push the biological scaffold 12 into the bone bed through the guide or under the monitoring of the imaging equipment, the biological scaffold 12 is selected from biological ceramics or bioactive metals with bone regeneration induction ability, and is realized by 3D printing technology after computer modeling, the biological scaffold 12 is a cylindrical structure containing internal interconnected pores, the designed three-pore channel communication pore window structure can meet the traffic required by tissue microcirculation metabolism, so as to adapt to the tissue repair requirements of different bone defect parts, the scaffold structure has stable mechanical strength, internal pore intercommunication and excellent total porosity, the microstructure can effectively induce bone regeneration and improve tissue microcirculation and strengthen early tissue repair.

[0044] Second step, install the vacuum tube 22 on the side end of the placing rack 19, the end of the vacuum tube 22 penetrates the layered module 14 and the inside of the supporting plate 15, and is connected with an external vacuum pump, the vacuum pump is started, a negative pressure area is formed in the suction cup 21, under the action of atmospheric pressure, the bone plate body 11 is firmly adsorbed in the placing rack 19.

[0045] At this time, the sliding butt joint rod 25 slides downward in the anchor plate 28, while guiding the transmission rod 24 to slide vertically downward, the sliding butt joint rod 25 end is butt jointed with the gear ring 32, the transmission rod 24 is driven to rotate, and then the driving screw rod 17 is driven to rotate, the driving screw rod 17 operates, so that the guide push plate 18 slides along the fixed track, the placement rack 19 is moved on the top end of the supporting plate 15, the placement rack 19 drives the magnetic roller 23 to move, the magnetic roller 23 is made of strontium ferrite magnetic material, and rolls on the surface of the supporting plate 15, so that the fracture plate body 11 is always kept horizontal with the supporting plate 15 when the placement rack 19 is at different angles.

[0046] Continue to push the placement rack 19, the magnetic roller 23 is away from the supporting plate 15, and because one end of the placement rack 19 is rotationally connected with the guide push plate 18, under the action of gravity, the placement rack 19 drives the fracture plate body 11 to overturn, so that the fracture plate body 11 is perpendicular to the supporting plate 15 and is attached to the surface of the bone.

[0047] After the fracture plate body 11 is attached to the bone, the motor box 29 is started, which simultaneously drives the two driving shafts 34 at the side end of the transfer case 33 to rotate, the driving shaft 34 drives the universal joint 35 to rotate, the drill bit body 36 connected with the universal joint 35 is synchronously rotated, so that the two drill bit bodies 36 are simultaneously drilled, the synchronous drilling is realized when the fracture plate body 11 is installed, the positioning and drilling operations are closely connected, the operation time is shortened, the screw implanting precision after the fracture plate body 11 is installed is guaranteed, the accuracy and stability of the fracture fixation are improved, the drilling depth is determined according to the bone thickness and the screw length, the surrounding tissue is prevented from being damaged by the drill bit penetrating the opposite cortical bone, and then the screw is screwed into the drilling hole by using the screwdriver, so that the fracture plate and the bone at both ends of the fracture are fixed.

[0048] In addition, the movable spacer plate 42 is driven to stretch and retract, the guide rail sliding seat 41 is pushed to slide horizontally, and the two drill bit bodies 36 are synchronously moved horizontally, meanwhile, the two electric telescopic rods 39 are driven to stretch and retract, the top end of the electric telescopic rod 39 pushes the pneumatic telescopic rod 27 to move vertically, the multi-section telescopic hard guide cover 38 guides the pneumatic telescopic rod 27 to move, so that the two pneumatic telescopic rods 27 move in the same plane, through control, the drill chuck 37 drives one drill bit body 36 to move upward and the other to move downward in the opposite direction, and the drilling position is flexibly adjusted according to the installation position of different bones.

[0049] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model and are not limited to the implementation modes. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A bone fixation device installation mechanism based on enhanced bone regeneration, comprising a bone plate body (11), a biological scaffold (12), an adjusting arm (13) and a layered module (14), characterized in that, The top end of the hierarchical module (14) is fixedly installed with a supporting plate (15) for placing the bone plate body (11), and the top end of the supporting plate (15) is provided with a suction assembly comprising a guide push plate (18), a placing rack (19), a suction disc (21), a vacuum tube (22) and a magnetic roller (23); the bottom end of the hierarchical module (14) is fixedly installed with a motor box (29) for driving the guide push plate (18) to move, and the side end of the motor box (29) is provided with a drilling assembly comprising a transfer case (33), a drive shaft (34), a universal joint (35), a drill bit body (36) and a drill chuck (37); the biological stent (12) has a cylindrical structure, and the surface of the biological stent (12) is provided with at least two channels.

2. The internal fixation support mounting mechanism based on enhanced bone regeneration according to claim 1, characterized by, The side end of each hierarchical module (14) is fixedly installed with an anchor plate (28) for supporting the transfer case (33), and the bottom end of the supporting plate (15) is provided with a transmission assembly comprising a transmission rod (24), a sliding butt joint rod (25), a bearing plate (26) and a pneumatic telescopic rod (27).

3. The internal fixation support mounting mechanism based on enhanced bone regeneration according to claim 1, characterized by, The surface of the transfer case (33) is fixedly installed with a linear push rod (43) for supporting, the side end of the linear push rod (43) is fixedly installed with a moving backing plate (42) for driving the drill chuck (37) to move, and the surface of the linear push rod (43) is slidably installed with a guide rail slide (41) for supporting the drill chuck (37).

4. The internal fixation support mounting mechanism based on enhanced bone regeneration according to claim 3, characterized by, The two side ends of the guide rail slide (41) are fixedly installed with guide assemblies, each of which comprises a guide cover (38) and an electric telescopic rod (39), and the top end of each electric telescopic rod (39) is fixedly connected with the pneumatic telescopic rod (27).

5. The internal fixation support mounting mechanism based on enhanced bone regeneration according to claim 1, characterized by, The top end of the supporting plate (15) is fixedly installed with a connecting clamping seat (16), and the side end of the connecting clamping seat (16) is rotatably installed with a drive lead screw (17) butted with the guide push plate (18).

6. The internal fixation support mounting mechanism based on enhanced bone regeneration according to claim 1, characterized by, The end of each drive shaft (34) is fixedly installed with a bevel gear, the middle section of each universal joint (35) is designed to be telescopic, the top end of each universal joint (35) is rotatably connected with the end of the drill bit body (36), and each drill bit body (36) is rotatably connected with the drill chuck (37).

7. The internal fixation support mounting mechanism based on enhanced bone regeneration according to claim 2, characterized by, The top end of each transmission rod (24) is rotatably connected with the drive lead screw (17), each transmission rod (24) and sliding butt joint rod (25) are mutually butted and slid, the end of each sliding butt joint rod (25) penetrates the inside of the anchor plate (28) downward, and the end of each pneumatic telescopic rod (27) is fixedly connected with the surface of the anchor plate (28).

8. The internal fixation support mounting mechanism based on enhanced bone regeneration according to claim 1, characterized by, The side end of each motor box (29) is rotatably installed with an output shaft (31) butted with the transfer case (33), and the surface of each output shaft (31) is fixedly installed with a gear ring (32) engaging the surface of the sliding butt joint rod (25).

Images