CN213767190U

CN213767190U - 3D printing device based on reduction of distal femoral fracture

Info

Publication number: CN213767190U
Application number: CN202022509164.0U
Authority: CN
Inventors: 梁周; 陆兰兰; 杨德炎; 文立春; 许钊
Original assignee: Yulin City Integrated Traditional Chinese And Western Medicine Orthopaedic Hospital
Current assignee: Yulin City Integrated Traditional Chinese And Western Medicine Orthopaedic Hospital
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-07-23
Anticipated expiration: 2030-11-03

Abstract

A3D printing device based on femur distal fracture reduction comprises a first supporting plate, a second supporting plate, a leveling component and a bottom plate; a plurality of groups of vertical support columns are arranged on the first support plate; the second supporting plate is arranged at the tops of the multiple groups of supporting columns; the cylinder is vertically arranged on the second supporting plate; the positioning rod is matched with and penetrates through the barrel body, and a limiting ring is arranged on the positioning rod; the turntable is arranged at the top of the positioning rod; the flat plate is arranged on the turntable; the spring is arranged on the first supporting plate; the third supporting plate is arranged at the top of the spring, a hook is arranged on the third supporting plate, and the hook is hung on the hanging ring; four groups of leveling components are arranged; the second supporting plate is provided with a lifting component. In the utility model, the leveling under the bottom plate initial condition is simple swift, and the upper and lower height of bottom plate can be adjusted simultaneously, and at the altitude mixture control in-process of bottom plate, the bottom plate is in horizontality, labour saving and time saving all the time.

Description

3D printing device based on reduction of distal femoral fracture

Technical Field

The utility model relates to a 3D prints technical field, especially relates to a 3D printing device based on thighbone distal end fracture resets.

Background

The distal femur fracture, the symptom is light or only thread fracture, or tear fracture, at this moment can be conservative treatment, can carry on plaster support fixation or brace fixation, at the same time, need to check X-ray film again regularly, oral or resting point promote fracture healing medicine only; if the distal femur fracture is displaced heavily or comminuted more severely, surgery is often required to treat this condition. The operation can select the internal fixation of the steel plate, most of the steel plates at the far end of the femur are steel plates of the anatomical lock pin, and the fixation is firmer.

3D printing is based on digital model files and uses adhesive materials such as powdered metal or plastic, the technology of building objects by layer-by-layer printing, 3D printing is increasingly used in various industries because of its many advantages, as for plaster supports, braces, steel plates and the like used in distal femoral fractures in medical treatment, the plaster supports, braces, steel plates and the like are also manufactured by more and more 3D printing methods, initial printing materials can not be firmly adhered to a bottom plate in the 3D printing process, so that the subsequent printing precision is greatly reduced, even the whole printing work can not be completed, the problems are mainly caused by that the distance between the bottom plate and a printing head is too large in the initial state, most of the bottom plates are in an adjustable state, however, the adjustment of the initial state of the bottom plate is complicated, and the horizontal state of the bottom plate is affected when the height is adjusted frequently, so that time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem that exists among the background art, the utility model provides a 3D printing device based on thighbone distal end fracture resets, the initial condition of bottom plate is fixed simple, and leveling under the initial condition is simple swift, and the upper and lower height of bottom plate can be adjusted simultaneously, thereby prevents that the initial powder of printing can't stabilize to glue on the bottom plate and influence the whole precision of printing the process, and at the height adjustment in-process of bottom plate, the bottom plate is in the horizontality all the time, need not carry out leveling once more, labour saving and time saving.

(II) technical scheme

The utility model provides a 3D printing device based on reduction of distal femur fracture, which comprises a first supporting plate, a second supporting plate, a leveling component and a bottom plate; the leveling assembly comprises a barrel, a positioning rod, a turntable, a flat plate, a spring and a third supporting plate;

the first supporting plate is horizontally arranged, and a plurality of groups of vertical supporting columns are arranged on the first supporting plate; the second supporting plate is horizontally arranged at the tops of the plurality of groups of supporting columns;

the barrel is vertically arranged on the second supporting plate, and the upper end and the lower end of the barrel are respectively positioned above and below the second supporting plate; the positioning rod penetrates through the barrel in a matching mode, the outer peripheral wall of the positioning rod is attached to the inner peripheral wall of the barrel, the top of the positioning rod is inserted into a first strip-shaped groove formed in the bottom plate, openings are formed in the upper end face, the lower end face and the outer side face of the bottom plate through the first strip-shaped groove, a horizontal limiting ring is coaxially arranged on the positioning rod, the limiting ring is located above the barrel, and the lower end face of the limiting ring is attached to the upper end face of the barrel; the turntable is horizontally and rotatably arranged at the top of the positioning rod; the flat plate is horizontally arranged on the rotary table, the lower end face of the flat plate is attached to the upper end face of the bottom plate, and the length direction of the flat plate is perpendicular to that of the first strip-shaped groove; the spring is vertically arranged on the first supporting plate, is positioned under the positioning rod and is in a stretching state; the third supporting plate is horizontally arranged at the top of the spring, a hook is arranged on the third supporting plate, and the hook is hung on a hanging ring arranged at the bottom of the positioning rod in a matching manner; four groups of leveling assemblies are arranged, and the four groups of leveling assemblies are respectively positioned at the four corners of the bottom plate;

the second supporting plate is provided with a lifting component for pushing the bottom plate to move up and down; the nozzles for printing are located above the base plate.

Preferably, the lifting assembly comprises a fourth supporting plate, a rotating shaft, a cam, a worm wheel, a fifth supporting plate and a worm; a vertical second strip-shaped groove is formed in the center of the second support plate, and openings are formed in the upper end face and the lower end face of the second support plate by the second strip-shaped groove; the fourth supporting plates are vertically arranged at the bottom of the second supporting plate, the fourth supporting plates are arranged in two groups which are parallel to each other, and the two groups of fourth supporting plates are symmetrical about the second strip-shaped groove; two ends of the rotating shaft are respectively and rotatably connected with the two groups of fourth supporting plates, and the rotating shaft is horizontally arranged; the cam is arranged on the rotating shaft and penetrates through the second strip-shaped groove to be in contact with the bottom of the bottom plate; the worm wheel is arranged on the rotating shaft and meshed with the worm; the worm is rotationally arranged on the fifth supporting plate, a knob is arranged at the end part of the worm, and the worm is positioned below the worm wheel; the fifth supporting plate is vertically arranged at the bottom of the second supporting plate.

Preferably, the bottom plate is provided with a plurality of groups of vertical baffles, each two groups of baffles correspond to one group of first bar-shaped grooves, each two groups of baffles are respectively positioned at the front side and the rear side of each first bar-shaped groove, and the flat plate is positioned at the inner sides of the plurality of groups of baffles and is in contact with the baffles.

Preferably, the periphery of the knob is provided with an anti-slip silica gel layer.

Preferably, the bottom of the first supporting plate is provided with a plurality of groups of universal wheels.

Preferably, the first support plate is provided with a level gauge.

The above technical scheme of the utility model has following profitable technological effect: the initial state of the bottom plate is fixed simply, the leveling under the initial state is simple and rapid, the upper and lower height of the bottom plate can be adjusted simultaneously, the initial printing powder can not be stably stuck on the bottom plate, so that the whole printing precision is not affected, the bottom plate is always in a horizontal state in the height adjusting process of the bottom plate, the leveling is not needed again, and time and labor are saved.

Drawings

Fig. 1 is the utility model provides a 3D printing device's based on distal femur fracture resets structural schematic.

Fig. 2 is the utility model provides a 3D printing device's top view based on distal femur fracture resets.

Fig. 3 is the utility model provides a 3D printing device's based on distal femur fracture resets A-A section view.

Reference numerals: 1. a first support plate; 2. a support pillar; 3. a second support plate; 4. a barrel; 5. positioning a rod; 6. a limiting ring; 7. a turntable; 8. a flat plate; 9. a base plate; 10. a first bar-shaped groove; 11. a baffle plate; 12. a spring; 13. a third support plate; 14. hooking; 15. a hoisting ring; 16. a second strip groove; 17. a fourth support plate; 18. a rotating shaft; 19. a cam; 20. a worm gear; 21. a fifth support plate; 22. a worm; 23. a knob; 24. a level gauge.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the 3D printing device for distal femoral fracture reduction provided by the present invention comprises a first supporting plate 1, a second supporting plate 3, a leveling component and a bottom plate 9; the leveling component comprises a cylinder 4, a positioning rod 5, a rotary disc 7, a flat plate 8, a spring 12 and a third supporting plate 13;

the first supporting plate 1 is horizontally arranged, and a plurality of groups of vertical supporting columns 2 are arranged on the first supporting plate 1; the second supporting plate 3 is horizontally arranged at the tops of the plurality of groups of supporting columns 2;

the cylinder 4 is vertically arranged on the second supporting plate 3, and the upper end and the lower end of the cylinder 4 are respectively positioned above and below the second supporting plate 3; the positioning rod 5 penetrates through the barrel 4 in a matched mode, the outer peripheral wall of the positioning rod 5 is attached to the inner peripheral wall of the barrel 4, the top of the positioning rod 5 is inserted into a first strip-shaped groove 10 formed in the bottom plate 9, openings are formed in the upper end face, the lower end face and the outer side face of the bottom plate 9 of the first strip-shaped groove 10, a horizontal limiting ring 6 is coaxially arranged on the positioning rod 5, the limiting ring 6 is located above the barrel 4, and the lower end face of the limiting ring 6 is attached to the upper end face of the barrel 4; the turntable 7 is horizontally and rotatably arranged at the top of the positioning rod 5; the flat plate 8 is horizontally arranged on the rotary table 7, the lower end face of the flat plate 8 is attached to the upper end face of the bottom plate 9, and the length direction of the flat plate 8 is vertical to that of the first strip-shaped groove 10; the spring 12 is vertically arranged on the first supporting plate 1, the spring 12 is positioned under the positioning rod 5, and the spring 12 is in a stretching state; the third supporting plate 13 is horizontally arranged at the top of the spring 12, a hook 14 is arranged on the third supporting plate 13, and the hook 14 is hung on a hanging ring 15 arranged at the bottom of the positioning rod 5 in a matching manner; four groups of leveling components are arranged, and the four groups of leveling components are respectively positioned at the four corners of the bottom plate 9;

the second supporting plate 3 is provided with a lifting component for pushing the bottom plate 9 to move up and down; the nozzles for printing are located above the base plate 9.

In the utility model, the flat plate 8 is rotated to make the length of the flat plate reverse to the length direction of the first strip-shaped groove 10, the flat plate 8 passes through the first strip-shaped groove 10 to place the bottom plate 9 on the plurality of groups of spacing rings 6, the hook 14 is hung on the hanging ring 15, the spring 12 is already in the stretching state, then the plurality of groups of flat plates 8 are rotated by ninety degrees to make the length of the flat plate 8 reverse to the length direction of the first strip-shaped groove 10, the bottom plate 9 can not move upwards to separate from the flat plate 8 through the plurality of groups of flat plates 8, the bottom plate 9 is pushed upwards through the lifting component to move upwards, at the moment, the upper end surface of the bottom plate 9 is in close contact with the plurality of groups of flat plates 8 through the downward pulling force of the plurality of groups of springs 12, thereby the bottom plate 9 is rapidly adjusted to be in the horizontal state, then the bottom plate 9 is continuously pushed upwards through the lifting component to reduce the distance between the bottom plate 9 and the spray head, thereby preventing the initial printing powder from being unable to be firmly stuck on the bottom plate, and in the process that the bottom plate 9 rises, downward pulling force is continuously exerted through the plurality of groups of springs 12, and the lifting assembly exerts upward force on the bottom plate, so that the bottom plate 9 is tightly attached to the flat plate 8, and meanwhile, the plurality of groups of positioning rods 5 are matched with the barrel body 4, so that the bottom plate 9 is always in a horizontal state. The utility model discloses in, the initial state of bottom plate 9 is fixed simple, and the leveling under the initial state is simple swift, and the upper and lower height of bottom plate 9 can be adjusted simultaneously, thereby prevents that the initial printing powder can't stabilize and glue on the bottom plate and influence the whole precision of printing the process, and at the height adjustment in-process of bottom plate 9, and bottom plate 9 is in the horizontality all the time, need not carry out leveling, labour saving and time saving once more.

In an alternative embodiment, the lifting assembly includes a fourth support plate 17, a rotation shaft 18, a cam 19, a worm wheel 20, a fifth support plate 21, and a worm 22; a vertical second strip-shaped groove 16 is formed in the center of the second support plate 3, and openings are formed in the second strip-shaped groove 16 on the upper end face and the lower end face of the second support plate 3; the fourth supporting plates 17 are vertically arranged at the bottom of the second supporting plate 3, two groups of parallel fourth supporting plates 17 are arranged, and the two groups of fourth supporting plates 17 are symmetrical about the second strip-shaped groove 16; two ends of the rotating shaft 18 are respectively and rotatably connected with the two groups of fourth supporting plates 17, and the rotating shaft 18 is horizontally arranged; the cam 19 is arranged on the rotating shaft 18, and the cam 19 passes through the second strip-shaped groove 16 to be in contact with the bottom of the bottom plate 9; a worm wheel 20 is arranged on the rotating shaft 18, and the worm wheel 20 is meshed with the worm 22; the worm 22 is rotatably arranged on the fifth supporting plate 21, a knob 23 is arranged at the end part of the worm 22, and the worm 22 is positioned below the worm wheel 20; the fifth supporting plate 21 is vertically arranged at the bottom of the second supporting plate 3; the knob 23 is rotated to drive the cam 19 to rotate through the worm 22, the worm wheel 20 and the rotating shaft 18, and the bottom plate 9 can be pushed to move upwards in the rotating process of the cam 19.

In an optional embodiment, a plurality of groups of vertical baffles 11 are arranged on the bottom plate 9, each two groups of baffles 11 correspond to one group of first strip-shaped grooves 10, each two groups of baffles 11 are respectively positioned at the front side and the rear side of the first strip-shaped grooves 10, and the flat plate 8 is positioned at the inner sides of the groups of baffles 11 and is in contact with the baffles 11; prevent the flat plate 8 from rotating reversely due to other factors such as vibration.

In an optional embodiment, the knob 23 is provided with an anti-slip silica gel layer on the periphery; rotation of the knob 23 is facilitated.

In an alternative embodiment, a plurality of groups of universal wheels are arranged at the bottom of the first supporting plate 1; the device is convenient to move.

In an alternative embodiment, the first support plate 1 is provided with a level 24; it is convenient to mount the first support plate 1 horizontally.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A3D printing device based on femur far-end fracture reduction is characterized by comprising a first supporting plate (1), a second supporting plate (3), a leveling component and a bottom plate (9); the leveling component comprises a cylinder (4), a positioning rod (5), a rotary disc (7), a flat plate (8), a spring (12) and a third supporting plate (13);

the first supporting plate (1) is horizontally arranged, and a plurality of groups of vertical supporting columns (2) are arranged on the first supporting plate (1); the second supporting plate (3) is horizontally arranged at the tops of the plurality of groups of supporting columns (2);

the barrel (4) is vertically arranged on the second supporting plate (3), and the upper end and the lower end of the barrel (4) are respectively positioned above and below the second supporting plate (3); the positioning rod (5) penetrates through the barrel (4) in a matching mode, the outer peripheral wall of the positioning rod (5) is attached to the inner peripheral wall of the barrel (4), the top of the positioning rod (5) is inserted into a first strip-shaped groove (10) formed in the bottom plate (9), openings are formed in the upper end face, the lower end face and the outer side face of the bottom plate (9) through the first strip-shaped groove (10), a horizontal limiting ring (6) is coaxially arranged on the positioning rod (5), the limiting ring (6) is located above the barrel (4), and the lower end face of the limiting ring (6) is attached to the upper end face of the barrel (4); the turntable (7) is horizontally and rotatably arranged at the top of the positioning rod (5); the flat plate (8) is horizontally arranged on the turntable (7), the lower end face of the flat plate (8) is attached to the upper end face of the bottom plate (9), and the length direction of the flat plate (8) is vertical to that of the first strip-shaped groove (10); the spring (12) is vertically arranged on the first supporting plate (1), the spring (12) is positioned under the positioning rod (5), and the spring (12) is in a stretching state; the third supporting plate (13) is horizontally arranged at the top of the spring (12), a hook (14) is arranged on the third supporting plate (13), and the hook (14) is hung on a hanging ring (15) arranged at the bottom of the positioning rod (5) in a matching manner; four groups of leveling components are arranged, and the four groups of leveling components are respectively positioned at the four corners of the bottom plate (9);

the second supporting plate (3) is provided with a lifting component for pushing the bottom plate (9) to move up and down; the nozzles for printing are located above the base plate (9).

2. The 3D printing device based on reduction of distal femoral fracture according to claim 1, characterized in that the lifting assembly comprises a fourth support plate (17), a rotating shaft (18), a cam (19), a worm wheel (20), a fifth support plate (21) and a worm (22); a vertical second strip-shaped groove (16) is formed in the center of the second supporting plate (3), and openings are formed in the second strip-shaped groove (16) on the upper end face and the lower end face of the second supporting plate (3); the fourth supporting plates (17) are vertically arranged at the bottom of the second supporting plate (3), two groups of the fourth supporting plates (17) which are parallel to each other are arranged, and the two groups of the fourth supporting plates (17) are symmetrical about the second strip-shaped groove (16); two ends of the rotating shaft (18) are respectively and rotatably connected with the two groups of fourth supporting plates (17), and the rotating shaft (18) is horizontally arranged; the cam (19) is arranged on the rotating shaft (18), and the cam (19) penetrates through the second strip-shaped groove (16) to be in contact with the bottom of the bottom plate (9); the worm wheel (20) is arranged on the rotating shaft (18), and the worm wheel (20) is meshed with the worm (22); the worm (22) is rotatably arranged on the fifth supporting plate (21), a knob (23) is arranged at the end part of the worm (22), and the worm (22) is positioned below the worm wheel (20); the fifth supporting plate (21) is vertically arranged at the bottom of the second supporting plate (3).

3. The 3D printing device based on femur distal fracture reduction according to claim 1, wherein a plurality of sets of vertical baffles (11) are disposed on the bottom plate (9), each two sets of baffles (11) correspond to one set of the first linear groove (10), each two sets of baffles (11) are respectively disposed at the front and rear sides of the first linear groove (10), and the flat plate (8) is disposed inside the plurality of sets of baffles (11) and contacts with the baffles (11).

4. The 3D printing device based on reduction of distal femoral fracture according to claim 2, characterized in that the knob (23) is provided with an anti-slip silica gel layer on its periphery.

5. The 3D printing device based on distal femoral fracture reduction according to claim 1, wherein a plurality of sets of universal wheels are arranged at the bottom of the first supporting plate (1).

6. The 3D printing device based on reduction of distal femoral fracture according to claim 1, characterized in that the first support plate (1) is provided with a level gauge (24).