阅读说明：本技术 一种3d打印骨折用固定装置 (3D prints fixing device for fracture ) 是由 韦仁 龚莫锋 许钊 钟义广 李鑫 邹金荫 黄华仲 于 2020-06-24 设计创作，主要内容包括：一种3D打印骨折用固定装置,包括第一弧形板、第二弧形板和压紧组件；第一弧形板一端和第二弧形板一端转动连接；第一盒体设置在第一弧形板外周壁上；第一滑板水平且滑动设置在第一盒体盒壁上；连杆垂直设置在第一滑板上,压板设置在连杆底部；两组绑带分别与压板两端连接,两组绑带与调节扣连接；第二盒体设置在第二弧形板外周壁上；第二滑板滑动设置在第二盒体内壁上；第一支撑杆设置在第二滑板上；第二支撑杆水平设置在第一支撑杆端部；弹簧两端分别抵靠在两组第二滑板上；拉杆设置在第二滑板上。本发明中,多组压紧组件能确保将骨折上下均压紧,且绑带会自动收紧,不会因为消肿而导致固定失效。(A3D printing fixing device for fracture comprises a first arc-shaped plate, a second arc-shaped plate and a pressing assembly; one end of the first arc-shaped plate is rotatably connected with one end of the second arc-shaped plate; the first box body is arranged on the peripheral wall of the first arc-shaped plate; the first sliding plate is horizontally and slidably arranged on the box wall of the first box body; the connecting rod is vertically arranged on the first sliding plate, and the pressing plate is arranged at the bottom of the connecting rod; the two groups of binding bands are respectively connected with the two ends of the pressing plate and connected with the adjusting buckle; the second box body is arranged on the peripheral wall of the second arc-shaped plate; the second sliding plate is arranged on the inner wall of the second box body in a sliding manner; the first support rod is arranged on the second sliding plate; the second supporting rod is horizontally arranged at the end part of the first supporting rod; two ends of the spring are respectively abutted against the two groups of second sliding plates; the pull rod is arranged on the second sliding plate. According to the invention, the plurality of groups of compression assemblies can ensure that the fracture is compressed up and down, and the bandage can be automatically tightened, so that the fixation failure caused by the detumescence can be avoided.)

1. A3D printing fixing device for fracture is characterized by comprising a first arc-shaped plate (1), a second arc-shaped plate (2) and a pressing assembly; the pressing component comprises a first box body (3), a first sliding plate (4), a connecting rod (5), a pressing plate (7), a binding band (8), a second box body (10), a second sliding plate (11), a first supporting rod (12), a second supporting rod (13), a spring (15), a pull rod (16) and an adjusting buckle (18);

the cross sections of the first arc-shaped plate (1) and the second arc-shaped plate (2) are semicircular, the inner circumferential surfaces of the first arc-shaped plate (1) and the second arc-shaped plate (2) are opposite, one end of the first arc-shaped plate (1) is rotatably connected with one end of the second arc-shaped plate (2), and the other end of the first arc-shaped plate (1) is connected with the other end of the second arc-shaped plate (2) through a positioning assembly;

the first box body (3) is arranged on the peripheral wall of the first arc-shaped plate (1); the first sliding plate (4) is horizontally and slidably arranged on the box wall of the first box body (3), and the sliding direction of the first sliding plate (4) is close to or far away from the first arc-shaped plate (1); the connecting rod (5) is vertically arranged on the end face, facing the first arc-shaped plate (1), of the first sliding plate (4), and the bottom of the connecting rod (5) penetrates through a connecting rod through hole (6) formed in the first arc-shaped plate (1) and extends into the first arc-shaped plate (1); the pressing plate (7) is arc-shaped, the pressing plate (7) is arranged at the bottom of the connecting rod (5), and the inner circumferential surface of the pressing plate (7) is opposite to the inner circumferential surface of the second arc-shaped plate (2); two groups of binding bands (8) are respectively connected with two ends of the pressing plate (7), and the bottoms of the two groups of binding bands (8) respectively penetrate through binding band through holes (9) formed in the second arc-shaped plate (2) to extend into the lower part of the second arc-shaped plate (2) and are connected with the adjusting buckle (18); the adjusting buckle (18) is arranged on the second box body (10); the second box body (10) is horizontally arranged on the peripheral wall of the second arc-shaped plate (2), and the second box body (10) is positioned between the two groups of through holes (9) for binding bands; the second sliding plates (11) are arranged on the inner wall of the second box body (10) in a sliding way, two groups of the second sliding plates (11) are arranged in parallel, and the sliding directions of the two groups of the second sliding plates (11) are close to or far away from the binding band (8); the first supporting rods (12) are vertically arranged on the end face, facing the second supporting rod (13), of the second sliding plate (11), the end parts of the first supporting rods (12) horizontally penetrate through supporting rod through holes (14) formed in the second box body (10) and extend out of the second box body (10), two groups of first supporting rods (12) are arranged, and the two groups of first supporting rods (12) correspond to the two groups of second sliding plates (11) one by one; the second support rods (13) are horizontally arranged at the end parts of the first support rods (12), the axes of the second support rods (13) are perpendicular to the axes of the first support rods (12), the second support rods (13) are abutted against the binding bands (8), the second support rods (13) are arranged in two groups, and the two groups of second support rods (13) correspond to the two groups of first support rods (12) one by one; two ends of the spring (15) are respectively abutted against the two groups of second sliding plates (11), and the spring (15) is in a compressed state; the pull rods (16) are arranged on the second sliding plates (11), the end parts of the pull rods (16) penetrate through strip-shaped grooves (17) formed in the second box body (10) and extend out of the second box body (10), two groups of pull rods (16) are arranged, and the two groups of pull rods (16) correspond to the two groups of second sliding plates (11) one by one; the pressing components are arranged in a plurality of groups along the length direction of the second arc-shaped plate (2).

2. The 3D printed fixation device for bone fracture according to claim 1, wherein the positioning assembly comprises a first support plate (19), a second support plate (21), a bolt (23) and a nut (24); the first supporting plate (19) is horizontally arranged on the second arc-shaped plate (2), and a vertical first through hole (20) is formed in the first supporting plate (19); the second supporting plate (21) is horizontally arranged on the first arc-shaped plate (1), a vertical second through hole (22) is formed in the first supporting plate (19), the second through hole (22) is opposite to the first through hole (20), and the second supporting plate (21) is attached to the first supporting plate (19); the bolt (23) is matched and penetrates through the first through hole (20) and the second through hole (22); the nut (24) is engaged with the bolt (23).

3. The 3D printed fixation device for bone fracture of claim 2, wherein the positioning assembly is provided in a plurality of sets.

4. The 3D printing fixing device for bone fracture as claimed in claim 1, wherein the second arc plate (2) is provided with a third supporting plate (25) on the end surface, the third supporting plate (25) is provided with two groups parallel to each other, and the two groups of the third supporting plates (25) are symmetrical with respect to the first arc plate (1); first arc (1) sets up dwang (26) on the terminal surface towards third backup pad (25), and dwang (26) rotate with third backup pad (25) and are connected, and dwang (26) set up two sets ofly, two sets of dwang (26) and two sets of third backup pad (25) one-to-one.

5. The 3D printing fixing device for bone fracture as claimed in claim 1, wherein the first magnet (27) is arranged on the inner side of the top of the first box body (3), and the second magnet (28) mutually attracted with the first magnet (27) is arranged on the top of the first sliding plate (4).

Technical Field

The invention relates to the technical field of medical equipment, in particular to a 3D printing fixing device for fracture.

Background

Fracture refers to the continuity of bone structure and breaks completely or partly, and at present, the treatment mode of hospital fracture is generally fixed for beating the gypsum, but the gypsum is disposable consumables, causes a large amount of wastes, and can lead to gypsum not to laminate with the fracture department under the outward appearance detumescence state when the gypsum is fixed, and fixed effect reduces. Along with the rise of 3D printing, present 3D printing has wide application in the medical industry, for solving the fixed problem that exists of gypsum, needs to design a 3D and prints fixing device for fracture.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a 3D printing fixing device for fracture, wherein a plurality of groups of compression assemblies can ensure that the fracture is compressed up and down, and a binding band can be automatically tightened, so that the fixing failure caused by detumescence can be avoided.

(II) technical scheme

The invention provides a 3D printing fixing device for fracture, which comprises a first arc-shaped plate, a second arc-shaped plate and a pressing assembly, wherein the first arc-shaped plate is provided with a first end and a second end; the pressing component comprises a first box body, a first sliding plate, a connecting rod, a pressing plate, a binding belt, a second box body, a second sliding plate, a first supporting rod, a second supporting rod, a spring, a pull rod and an adjusting buckle;

the cross sections of the first arc-shaped plate and the second arc-shaped plate are semicircular, the inner peripheral surfaces of the first arc-shaped plate and the second arc-shaped plate are opposite, one end of the first arc-shaped plate is rotatably connected with one end of the second arc-shaped plate, and the other end of the first arc-shaped plate is connected with the other end of the second arc-shaped plate through a positioning assembly;

the first box body is arranged on the peripheral wall of the first arc-shaped plate; the first sliding plate is horizontally and slidably arranged on the box wall of the first box body, and the sliding direction of the first sliding plate is close to or far away from the first arc-shaped plate; the connecting rod is vertically arranged on the end face, facing the first arc-shaped plate, of the first sliding plate, and the bottom of the connecting rod penetrates through a connecting rod through hole formed in the first arc-shaped plate and extends into the first arc-shaped plate; the pressing plate is arc-shaped and is arranged at the bottom of the connecting rod, and the inner peripheral surface of the pressing plate is opposite to the inner peripheral surface of the second arc-shaped plate; the two groups of binding bands are respectively connected with the two ends of the pressing plate, and the bottoms of the two groups of binding bands respectively penetrate through binding band through holes formed in the second arc-shaped plate and extend into the lower part of the second arc-shaped plate and are connected with the adjusting buckle; the adjusting buckle is arranged on the second box body; the second box body is horizontally arranged on the peripheral wall of the second arc-shaped plate and is positioned between the two groups of through holes of the binding band; the second sliding plates are arranged on the inner wall of the second box body in a sliding manner, the second sliding plates are arranged in two groups in parallel, and the sliding directions of the two groups of second sliding plates are close to or far away from the binding band; the first support rods are vertically arranged on the end face, facing the second support rods, of the second sliding plate, the end parts of the first support rods horizontally penetrate through support rod through holes formed in the second box body and extend out of the second box body, the first support rods are arranged in two groups, and the two groups of first support rods correspond to the two groups of second sliding plates one by one; the second support rods are horizontally arranged at the end parts of the first support rods, the axes of the second support rods are perpendicular to the axes of the first support rods, the second support rods are abutted against the binding bands, the second support rods are arranged in two groups, and the two groups of the second support rods correspond to the two groups of the first support rods one by one; two ends of the spring are respectively abutted against the two groups of second sliding plates, and the spring is in a compressed state; the pull rods are arranged on the second sliding plates, the end parts of the pull rods penetrate through strip-shaped grooves formed in the second box body and extend out of the second box body, and the two groups of pull rods are arranged and correspond to the two groups of second sliding plates one by one; the pressing assemblies are provided with a plurality of groups along the length direction of the second arc-shaped plate.

Preferably, the positioning assembly comprises a first support plate, a second support plate, a bolt and a nut; the first supporting plate is horizontally arranged on the second arc-shaped plate, and a vertical first through hole is formed in the first supporting plate; the second supporting plate is horizontally arranged on the first arc-shaped plate, a vertical second through hole is formed in the first supporting plate, the second through hole is opposite to the first through hole, and the second supporting plate is attached to the first supporting plate; the bolt is matched and penetrates through the first through hole and the second through hole; the nut is matched with the bolt.

Preferably, the positioning assembly is provided in a plurality of sets.

Preferably, the end face of the second arc-shaped plate is provided with a third supporting plate, the third supporting plates are arranged in two groups which are parallel to each other, and the two groups of third supporting plates are symmetrical relative to the first arc-shaped plate; the dwang is arranged on the end face of the first arc-shaped plate facing the third supporting plate, the dwang is rotatably connected with the third supporting plate, the dwang is arranged in two groups, and the two groups of dwang correspond to the two groups of third supporting plates one by one.

Preferably, the first magnet is arranged on the inner side of the top of the first box body, and the second magnet attracted with the first magnet is arranged on the top of the first sliding plate.

The technical scheme of the invention has the following beneficial technical effects: the multiunit compresses tightly the subassembly and can ensure all compressing tightly about will fracturing, and the bandage can tighten up automatically, can not lead to the fixed inefficacy because of the detumescence.

Drawings

Fig. 1 is a schematic structural diagram of a 3D printing fracture fixation device provided by the invention.

Fig. 2 is a top view of a 3D printed fracture fixation device according to the present invention.

Fig. 3 is a bottom view of the 3D printed fracture fixation device according to the present invention.

Fig. 4 is an enlarged schematic view of the position a of the 3D printing fracture fixation device provided by the invention.

Reference numerals: 1. a first arc-shaped plate; 2. a second arc-shaped plate; 3. a first case; 4. a first slide plate; 5. a connecting rod; 6. a connecting rod via hole; 7. pressing a plate; 8. binding bands; 9. a strap through hole; 10. a second box body; 11. a second slide plate; 12. a first support bar; 13. a second support bar; 14. a support rod via hole; 15. a spring; 16. a pull rod; 17. a strip-shaped groove; 18. adjusting buckles; 19. a first support plate; 20. a first through hole; 21. a second support plate; 22. a second through hole; 23. a bolt; 24. a nut; 25. a third support plate; 26. rotating the rod; 27. a first magnet; 28. a second magnet.

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 further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary 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. 1-4, the 3D printing fixing device for bone fracture provided by the invention comprises a first arc plate 1, a second arc plate 2 and a pressing component; the pressing component comprises a first box body 3, a first sliding plate 4, a connecting rod 5, a pressing plate 7, a binding belt 8, a second box body 10, a second sliding plate 11, a first supporting rod 12, a second supporting rod 13, a spring 15, a pull rod 16 and an adjusting buckle 18;

the cross sections of the first arc-shaped plate 1 and the second arc-shaped plate 2 are both semicircular, the inner peripheral surfaces of the first arc-shaped plate 1 and the second arc-shaped plate 2 are opposite, one end of the first arc-shaped plate 1 is rotatably connected with one end of the second arc-shaped plate 2, and the other end of the first arc-shaped plate 1 is connected with the other end of the second arc-shaped plate 2 through a positioning assembly;

the first box body 3 is arranged on the peripheral wall of the first arc-shaped plate 1; the first sliding plate 4 is horizontally and slidably arranged on the box wall of the first box body 3, and the sliding direction of the first sliding plate 4 is close to or far away from the first arc-shaped plate 1; the connecting rod 5 is vertically arranged on the end surface of the first sliding plate 4 facing the first arc-shaped plate 1, and the bottom of the connecting rod 5 passes through a connecting rod through hole 6 formed in the first arc-shaped plate 1 and extends into the first arc-shaped plate 1; the pressing plate 7 is arc-shaped, the pressing plate 7 is arranged at the bottom of the connecting rod 5, and the inner circumferential surface of the pressing plate 7 is opposite to the inner circumferential surface of the second arc-shaped plate 2; two groups of binding bands 8 are respectively connected with two ends of the pressing plate 7, and the bottoms of the two groups of binding bands 8 respectively penetrate through binding band through holes 9 formed in the second arc-shaped plate 2 to extend into the lower part of the second arc-shaped plate 2 and are connected with the adjusting buckle 18; the adjusting buckle 18 is arranged on the second box body 10; the second box body 10 is horizontally arranged on the outer peripheral wall of the second arc-shaped plate 2, and the second box body 10 is positioned between the two groups of through holes 9 for binding bands; the second sliding plates 11 are arranged on the inner wall of the second box body 10 in a sliding way, two groups of the second sliding plates 11 are arranged in parallel, and the sliding directions of the two groups of the second sliding plates 11 are close to or far away from the binding band 8; the first supporting rods 12 are vertically arranged on the end face, facing the second supporting rod 13, of the second sliding plate 11, the end parts of the first supporting rods 12 horizontally penetrate through supporting rod through holes 14 formed in the second box body 10 and extend out of the second box body 10, the first supporting rods 12 are arranged in two groups, and the two groups of first supporting rods 12 correspond to the two groups of second sliding plates 11 one by one; the second support rods 13 are horizontally arranged at the end parts of the first support rods 12, the axes of the second support rods 13 are perpendicular to the axes of the first support rods 12, the second support rods 13 are abutted against the binding bands 8, the second support rods 13 are arranged in two groups, and the two groups of second support rods 13 correspond to the two groups of first support rods 12 one by one; two ends of the spring 15 are respectively abutted against the two groups of second sliding plates 11, and the spring 15 is in a compressed state; the pull rods 16 are arranged on the second sliding plates 11, the end parts of the pull rods 16 penetrate through strip-shaped grooves 17 formed in the second box body 10 and extend out of the second box body 10, two groups of pull rods 16 are arranged, and the two groups of pull rods 16 correspond to the two groups of second sliding plates 11 one by one; the pressing assemblies are provided with a plurality of groups along the length direction of the second arc-shaped plate 2.

In the invention, the fracture part of a patient is placed on the inner periphery of the second arc-shaped plate 2, two groups of binding bands 8 are connected with the adjusting buckle 18 after passing through the binding band through holes 9, the first arc-shaped plate 1 is turned over, the first arc-shaped plate 1 and the second arc-shaped plate 2 are fixed through the positioning assembly, the two groups of binding bands 8 are tightened through the adjusting buckle 18, the pressing plate 7 is pressed on the fracture part of the patient, the two groups of binding bands 8 are kept in a tensioning state, at the moment, the two groups of second supporting rods 13 are abutted against the binding bands 8, when the external muscles on the fracture part of the patient are detumescent to cause the binding bands 8 to be loosened, under the thrust of spring 15, two sets of second slide 11 outwards remove and promote two sets of first bracing pieces 12 and remove, and two sets of first bracing pieces 12 promote two sets of second bracing pieces 13 and remove, and two sets of second bracing pieces 13 support bandage 8 tightly again, ensure that clamp plate 7 laminates all the time at patient's fracture department, prevent to cause the fixed inefficacy because of the detumescence. According to the invention, the plurality of groups of compression assemblies can ensure that the fracture is compressed vertically, and the binding band 8 can be automatically tightened, so that the fixation failure caused by the detumescence can be avoided.

In an alternative embodiment, the positioning assembly comprises a first support plate 19, a second support plate 21, a bolt 23 and a nut 24; the first supporting plate 19 is horizontally arranged on the second arc-shaped plate 2, and a vertical first through hole 20 is formed in the first supporting plate 19; the second supporting plate 21 is horizontally arranged on the first arc-shaped plate 1, the first supporting plate 19 is provided with a vertical second through hole 22, the second through hole 22 is opposite to the first through hole 20, and the second supporting plate 21 is attached to the first supporting plate 19; the bolt 23 is fitted through the first through hole 20 and the second through hole 22; the nut 24 is engaged with the bolt 23; the first arc-shaped plate 1 is turned over to enable the second through hole 22 to be opposite to the first through hole 20, the bolt 23 penetrates through the first through hole 20 and the second through hole 22, and then the nut 24 is screwed.

In an alternative embodiment, the positioning components are arranged in a plurality of groups; the fixing stability between the first arc-shaped plate 1 and the second arc-shaped plate 2 is improved.

In an alternative embodiment, the third support plates 25 are arranged on the end surface of the second arc-shaped plate 2, the third support plates 25 are arranged in two groups which are parallel to each other, and the two groups of the third support plates 25 are symmetrical about the first arc-shaped plate 1; the end surface of the first arc-shaped plate 1 facing the third support plate 25 is provided with rotating rods 26, the rotating rods 26 are rotatably connected with the third support plate 25, the rotating rods 26 are provided in two groups, and the two groups of rotating rods 26 correspond to the two groups of third support plates 25 one by one; the first arc-shaped plate 1 is pulled to drive the rotating rod 26 to rotate, and then the rotation of the first arc-shaped plate 1 can be completed.

In an alternative embodiment, a first magnet 27 is arranged on the inner side of the top of the first box 3, and a second magnet 28 mutually attracted with the first magnet 27 is arranged on the top of the first sliding plate 4; when the device is not used, the first magnet 27 and the second magnet 28 are attracted to prevent the pressure plate 7 from shaking.

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.