Fracture fixing splint

Abstract

The utility model relates to the technical field of orthopedic medical instruments, and discloses a fracture fixation splint which comprises a splint set and a winding belt, the splint set comprises a starting point splint and at least one wire passing splint, and the two ends of the starting point splint and the two ends of the wire passing splint are respectively provided with a starting point locking structure and a wire passing locking structure which are symmetrical. The starting point locking structure and the wire passing locking structure are internally provided with side grooves used for a winding belt to penetrate through; the top groove is formed in the top of the side groove, and a rotating shaft is arranged in the top groove; the eccentric rotating wheel is rotationally connected to the rotating shaft, the eccentric rotating wheel eccentrically rotates around the rotating shaft, and a long rod is further fixedly connected to the eccentric rotating wheel; the eccentric rotating wheel in the starting point locking structure is fixed to the fixed position of the rotating shaft and eccentrically rotates, and the eccentric rotating wheel in the side groove eccentrically rotates on the rotating shaft and slides front and back at the same time. The fracture fixation splint has the advantages of being easy to install and operate, firm in splint fixation and adjustable in tightness.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic medical instruments, in particular to a fracture fixing splint. Background Art

[0002] The fixation splint used for orthopedic fractures is a way to treat fractures. A matching splint is fixed to the fracture site and bandages are used to fix both sides of the splint to prevent it from falling. The main purpose of this fixation method is to maintain the position of the fracture after reduction and prevent lateral displacement, overlapping displacement, rotational displacement or angular displacement of the fracture. At the same time, it can also prevent callus fracture during later functional exercise. The fixation splint is usually composed of metal plates, screws, washers, etc. Specific types include medical plaster splints, metal splints, external fixators, bioceramic splints and carbon fiber splints.

[0003] Patent application number CN200910019816.8 discloses the technical field of medical devices, and particularly relates to an orthopedic fixed splint, including a sheet-shaped ordinary splint for covering the body position, and its special feature is that: the ordinary splint is connected with a mesh airbag that can change its shape. Therefore, the present invention has the advantages of simple structure and convenient use, and has a certain protective effect on the patient's injury. It can be seen that the fixed splint in the prior art often uses multiple splints to fix on the fracture, and then fixes the splint with a bandage or other wrapping belt.

[0004] By analyzing the existing technology, the following defects are found: the method of fixing the splint with a bandage is inconvenient and difficult to operate, and the bandage needs to be tied tightly while fixing the splint; after the splint is fixed by the bandage, there is no fixed connection between the bandage and the splint, only friction, which can easily cause the splint to loosen or shift during use; the tightness of the bandage cannot be adjusted, and it can only be removed and reinstalled. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a fracture fixation splint, which has the advantages of simple installation and operation, firm fixation of the splint and adjustable tightness, solving the problems in the prior art of complex installation operation, easy loosening and non-adjustable tightness of the splint.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A fracture fixation splint, comprising a splint group for fixing a limb and a winding belt for fixing the splint group, the splint group comprising a starting point splint and at least one passing line splint, the starting point splint and the passing line splint are both rectangular plate-shaped structures, the two ends of the starting point splint and the passing line splint are respectively provided with a symmetrical starting point locking structure and a passing line locking structure, the starting point locking structure and the passing line locking structure both include:

[0010] The side groove is a deep groove with three sides open, used for passing the winding belt, wherein the three sides of the opening include the end face and two sides in the winding direction of the winding belt;

[0011] The top groove is arranged on the top of the side groove and is a groove with through holes opened on two sides, wherein the two open sides include a top surface and a bottom surface connected to the side groove, and a rotating shaft is arranged in the top groove;

[0012] An eccentric rotating wheel is rotatably connected to the rotating shaft. The eccentric rotating wheel rotates eccentrically around the rotating shaft and is used to fix the winding belt. A long rod is also fixed to the eccentric rotating wheel.

[0013] The eccentric rotating wheel in the starting point locking structure is fixed at a fixed position on the rotating shaft and rotates eccentrically, and the eccentric rotating wheel in the side groove slides forward and backward while rotating eccentrically on the rotating shaft.

[0014] Preferably, limiting rings are provided on the rotating shaft at both ends of the eccentric wheel in the starting point locking structure, and the limiting rings are fixed on the rotating shaft to limit the movement of the eccentric wheel so that the eccentric wheel can rotate at a fixed position; elastic devices are provided at both ends of the eccentric wheel in the line-passing locking structure, one end of the elastic device is pressed against the line-passing clamp plate shell, and the other end of the elastic device is pressed against the end face of the limiting ring, so that the eccentric wheel has elasticity while sliding on the rotating shaft.

[0015] Preferably, the starting point clamp is also provided with a starting point fixing block, which is arranged at both ends of the starting point clamp near the side groove, and the starting point fixing block is provided with a through hole that is larger than the winding belt, and the starting point fixing block is also provided with a knob for fixing the end of the winding belt.

[0016] Preferably, a positioning hole is further provided at the end of the winding belt, and the knob passes through the positioning hole to fix the end of the winding belt in the starting point fixing block.

[0017] Preferably, the starting point splint and the line-crossing splint are further provided with shallow grooves at positions corresponding to the long rods, and the long rods are hidden in the shallow grooves when folded, and the farthest end of the eccentric wheel is against the winding belt in the side groove when the long rods are folded.

[0018] Preferably, the outer ring of the eccentric wheel is made of elastic rubber material to increase the friction between the eccentric wheel and the winding belt to prevent the winding belt from loosening.

[0019] Preferably, an inclined surface is provided at the end of the long rod to facilitate the rotation of the long rod.

[0020] Preferably, the wrapping tape is an inelastic cloth tape, which improves the fixing effect and the air permeability at the same time.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the utility model provides a fracture fixation splint, which has the following beneficial effects:

[0023] 1. The fracture fixation splint is provided with side grooves with three openings at both ends of the starting splint and the passing line splint. The winding belt can be directly installed into the side groove from the side of the side groove, and the operation is simple and convenient. An eccentric wheel is installed in the top groove arranged on the top of the side groove. The eccentric wheel rotates eccentrically around the rotating shaft. The purpose of clamping and loosening the winding belt can be achieved by controlling the long rod on the eccentric wheel. The operation is simple and convenient.

[0024] 2. The fracture fixation splint is manufactured by fixing the eccentric wheel in the starting splint at a fixed position in the top groove and rotating it, and elastically connecting the eccentric wheel in the passing line splint to the rotating shaft and rotating it. The eccentric wheel in the passing line splint can move back and forth on the rotating shaft after clamping the winding belt. When the tightness needs to be adjusted, it is only necessary to adjust the winding belt in the starting splint. Under the action of the elastic device, the eccentric wheel in the passing line splint automatically adjusts its position to balance the tension at both ends, thereby facilitating the adjustment of the tightness and preventing the passing line splint from shifting its position.

[0025] 3. The fracture fixation splint has a starting point fixing block arranged on the starting point splint, and the starting point fixing block is used to fix the end of the winding belt, thereby improving the stability of the winding belt and strengthening the clamping and fixing effect of the starting point splint and the crossing line splint. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the fracture fixation splint of the utility model when in use.

[0027] Figure 2 This is a structural schematic diagram of the starting point splint of the fracture fixation splint of the utility model.

[0028] Figure 3 It is a structural schematic diagram of the wire splint of the fracture fixation splint of the utility model.

[0029] Figure 4 It is a cross-sectional view of the wire splint of the fracture fixation splint of the utility model.

[0030] Figure 5 It is a structural schematic diagram of the fracture fixation splint of the utility model when the over-the-line splint is loosened.

[0031] Figure 6It is a cross-sectional view of the fracture fixation splint of the utility model when the over-the-line splint is loosened.

[0032] In the figure: 1. starting point splint; 2. passing line splint; 3. winding belt; 4. limb; 10. starting point locking structure; 20. passing line locking structure; 11. side groove; 12. top groove; 13. rotating shaft; 14. eccentric rotating wheel; 15. long rod; 16. shallow groove; 17. limiting ring; 18. starting point fixing block; 27. elastic device. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] Embodiment 1:

[0037] This embodiment provides a fracture fixation splint having the following technical features.

[0038] See also Figure 1-6 A fracture fixation splint, comprising a splint group for fixing a limb 4 and a winding belt 3 for fixing the splint group, the splint group comprising a starting splint 1 and at least one over-line splint 2, the starting splint 1 and the over-line splint 2 are both rectangular plate structures, the starting splint 1 and the over-line splint 2 are respectively provided with symmetrical starting locking structures 10 and over-line locking structures 20 at both ends, the starting locking structure 10 and the over-line locking structure 20 both include:

[0039] The side groove 11 is a deep groove with three sides open, used for passing the winding belt 3, wherein the three sides of the opening include the end face and two sides in the winding direction of the winding belt 3;

[0040] The top groove 12 is arranged on the top of the side groove 11 and is a through-hole groove with two open sides, wherein the two open sides include a top surface and a bottom surface connected to the side groove 11, and a rotating shaft 13 is arranged in the top groove 12;

[0041] An eccentric rotating wheel 14 is rotatably connected to the rotating shaft 13. The eccentric rotating wheel 14 rotates eccentrically around the rotating shaft 13 to fix the winding belt 3. A long rod 15 is also fixed to the eccentric rotating wheel 14.

[0042] The eccentric rotating wheel 14 in the starting point locking structure 10 is fixed at a fixed position on the rotating shaft 13 and rotates eccentrically, and the eccentric rotating wheel 14 in the side groove 11 slides forward and backward while eccentrically rotating on the rotating shaft 13 .

[0043] In an optional embodiment, if Figure 1-6 As shown, both ends of the eccentric wheel 14 in the starting point locking structure 10 are provided with limit rings 17 on the rotating shaft 13, and the limit rings 17 are fixed on the rotating shaft 13 to limit the movement of the eccentric wheel 14, so that the eccentric wheel 14 is located at a fixed position and rotates; both ends of the eccentric wheel 14 in the line-passing locking structure 20 are provided with elastic devices 27, one end of the elastic device 27 is pressed against the shell of the line-passing clamp 2, and the other end of the elastic device 27 is pressed against the end face of the limit ring 17, so that the eccentric wheel 14 has elasticity while sliding on the rotating shaft 13.

[0044] In an optional embodiment, if Figure 1-6 As shown, a starting point fixing block 18 is also provided on the starting point clamp 1. The starting point fixing block 18 is arranged at both ends of the starting point clamp 1 close to the side groove 11. A through hole that is larger than the winding belt 3 is provided in the starting point fixing block 18. The starting point fixing block 18 is also provided with a knob for fixing the end of the winding belt 3.

[0045] In an optional embodiment, if Figure 1-6 As shown, a positioning hole is also provided at the end of the winding belt 3 , and the knob passes through the positioning hole to fix the end of the winding belt 3 in the starting point fixing block 18 .

[0046] It should be noted that when there is one positioning hole, it is set at a position corresponding to the middle of the end of the winding belt 3 , and when there are multiple positioning holes, they need to be symmetrically distributed to improve the stability of the winding belt 3 .

[0047] In an optional embodiment, if Figure 1-6 As shown, shallow grooves 16 are provided on the starting splint 1 and the line-crossing splint 2 at positions corresponding to the long rod 15 . When the long rod 15 is folded, it is hidden in the shallow groove 16 . When the long rod 15 is folded, the farthest end of the eccentric wheel 14 is against the winding belt 3 in the side groove 11 .

[0048] It should be noted that when the long rod 15 is stuck in the shallow groove 16, the eccentric wheel 14 presses against the winding belt 3. When the long rod 15 rotates to be perpendicular to the top surface of the starting clamp 1 or the passing clamp 2, the long rod 15 is separated from the winding belt 3.

[0049] In an optional embodiment, if Figure 1-6 As shown, the outer ring of the eccentric wheel 14 is made of elastic rubber material to increase the friction between the eccentric wheel 14 and the winding belt 3 to prevent the winding belt 3 from loosening.

[0050] It should be noted that, in addition to rubber, the material of the eccentric wheel 14 can also be other elastic materials, such as silicone, etc., or hard materials, such as metal, etc., and textures or granular textures can be added on the surface to increase friction.

[0051] In an optional embodiment, if Figure 5 As shown, an inclined surface is provided at the end of the long rod 15 to facilitate the rotation of the long rod 15.

[0052] It should be noted that the end of the long rod 15 is an inclined surface to avoid inconvenience in taking out the long rod 15 when it is folded in the shallow groove 16 . The inclined surface of the long rod 15 is located on the side close to the shallow groove 16 .

[0053] In an optional embodiment, if Figure 1 As shown, the wrapping belt 3 is an inelastic cloth belt, which improves the fixing effect and the breathability at the same time.

[0054] It should be noted that when using a cloth belt, a metal ring needs to be provided at the positioning hole at the end to improve durability.

[0055] Working principle: During installation, first fix the ends of the two wrapping belts 3 in the starting point fixing block 18, then rotate the long rods 15 on the starting point splint 1 and the line-crossing splint 2 to a position perpendicular to the top surfaces of the starting point splint 1 and the line-crossing splint 2, then place the starting point splint 1 and multiple line-crossing splints 2 at corresponding positions on the limb 4, and pass the wrapping belt 3 through the side grooves 11 on the line-crossing splint 2 in turn. Since the side grooves 11 are provided with openings at the ends, the wrapping belt 3 can be directly inserted into the side grooves 11 from the side, and the wrapping belt 3 passes through the line-crossing splint 2 and then goes around and returns to the side grooves 11 of the starting point splint 1. After tightening the wrapping belt 3 to a comfortable tightness, rotate the long rod 15 on the starting point splint 1 to fix the other end of the wrapping belt 3 on the side grooves 11 in the starting point splint 1, and finally rotate the long rod 15 on the line-crossing splint 2 into the shallow groove 16 to fix each line-crossing splint 2 on the wrapping belt 3;

[0056] When the tightness needs to be adjusted, the long rod 15 on the starting clamp 1 is rotated to change the tightness of the winding belt 3. Since elastic devices 27 are set at both ends of the eccentric wheel 14 in the line clamp 2, the elastic devices 27 at both ends are in a balanced state before the tightness is adjusted. After the tightness is adjusted, due to the change in tension, the position of the eccentric wheel 14 on the line clamp 2 will automatically change to balance the tension at both ends of the eccentric wheel 14, thereby avoiding the displacement of the line clamp 2 after adjusting the tightness of the winding belt 3. It should be noted that.

[0057] To sum up, the fracture fixation splint is provided with side grooves 11 with three openings at both ends of the starting splint 1 and the passing line splint 2. The winding belt 3 can be directly inserted into the side groove 11 from the side of the side groove 11, and the operation is simple and convenient. An eccentric wheel 14 is installed in the top groove 12 set on the top of the side groove 11. The eccentric wheel 14 rotates eccentrically around the rotating shaft 13. The purpose of clamping and loosening the winding belt 3 can be achieved by controlling the long rod 15 on the eccentric wheel 14. The operation is simple and convenient.

[0058] The fracture fixation splint is manufactured by fixing the eccentric wheel 14 in the starting splint 1 at a fixed position in the top groove 12 and rotating it, and elastically connecting the eccentric wheel 14 in the line-crossing splint 2 to the rotating shaft 13 and rotating it. The eccentric wheel 14 in the line-crossing splint 2 can move back and forth on the rotating shaft 13 after clamping the winding belt 3. When the tightness needs to be adjusted, only the winding belt 3 in the starting splint 1 needs to be adjusted. Under the action of the elastic device 27, the eccentric wheel 14 in the line-crossing splint 2 automatically adjusts its position to balance the tension at both ends, thereby facilitating the adjustment of the tightness and preventing the line-crossing splint 2 from shifting its position.

[0059] The fracture fixation splint has a starting point fixing block 18 disposed on the starting point splint 1. The starting point fixing block 18 is used to fix the end of the winding belt 3, thereby improving the stability of the winding belt 3 and strengthening the clamping and fixing effect of the starting point splint 1 and the crossing line splint 2.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fracture fixation splint, comprising a splint group for fixing a limb (4) and a winding belt (3) for fixing the splint group, characterized in that: The splint group comprises a starting splint (1) and at least one line-passing splint (2), the starting splint (1) and the line-passing splint (2) are both rectangular plate-shaped structures, and the two ends of the starting splint (1) and the line-passing splint (2) are respectively provided with a symmetrical starting point locking structure (10) and a line-passing locking structure (20); The starting point locking structure (10) and the line-crossing locking structure (20) both include: The side groove (11) is a deep groove with three openings for passing the winding belt (3), wherein the three openings include an end face and two faces in the winding direction of the winding belt (3); A top groove (12) is arranged on the top of the side groove (11) and is a groove with through holes opened on two sides, wherein the two open sides include a top surface and a bottom surface connected to the side groove (11), and a rotating shaft (13) is arranged in the top groove (12); An eccentric rotating wheel (14) is rotatably connected to the rotating shaft (13). The eccentric rotating wheel (14) rotates eccentrically around the rotating shaft (13) and is used to fix the winding belt (3). A long rod (15) is also fixed to the eccentric rotating wheel (14); The eccentric rotating wheel (14) in the starting point locking structure (10) is fixed at a fixed position on the rotating shaft (13) and rotates eccentrically, and the eccentric rotating wheel (14) in the side groove (11) slides forward and backward while eccentrically rotating on the rotating shaft (13).

2. A fracture fixation splint according to claim 1, characterized in that: The two ends of the eccentric rotating wheel (14) in the starting point locking structure (10) are provided with limiting rings (17) on the rotating shaft (13), and the limiting rings (17) are fixed on the rotating shaft (13) to limit the movement of the eccentric rotating wheel (14), so that the eccentric rotating wheel (14) is located at a fixed position and rotates; the two ends of the eccentric rotating wheel (14) in the line-passing locking structure (20) are provided with elastic devices (27), one end of the elastic device (27) is pressed against the shell of the line-passing clamp (2), and the other end of the elastic device (27) is pressed against the end surface of the limiting ring (17).

3. A fracture fixation splint according to claim 2, characterized in that: The starting point clamp (1) is also provided with a starting point fixing block (18), which is arranged at positions close to the side grooves (11) at both ends of the starting point clamp (1), and a through hole with an interference fit over the winding belt (3) is arranged in the starting point fixing block (18), and a knob for fixing the end of the winding belt (3) is also provided on the starting point fixing block (18).

4. A fracture fixation splint according to claim 3, characterized in that: The end of the winding belt (3) is also provided with a positioning hole, and the knob passes through the positioning hole to fix the end of the winding belt (3) in the starting point fixing block (18).

5. A fracture fixation splint according to claim 3, characterized in that: Shallow grooves (16) are also provided on the starting point clamp (1) and the line-crossing clamp (2) at positions corresponding to the long rod (15). When the long rod (15) is folded, it is hidden in the shallow groove (16). When the long rod (15) is folded, the farthest end of the eccentric rotating wheel (14) is pressed against the winding belt (3) in the side groove (11).

6. A fracture fixation splint according to claim 5, characterized in that: The outer ring of the eccentric rotating wheel (14) is made of elastic rubber material.

7. A fracture fixation splint according to claim 6, characterized in that: The end of the long rod (15) is provided with an inclined surface.

8. A fracture fixation splint according to claim 7, characterized in that: The wrapping belt (3) is an inelastic cloth belt.

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