Metacarpal bone fracture reduction traction device

Abstract

The utility model discloses a metacarpal bone fracture reduction traction device, which belongs to the field of medical instruments and comprises a palm side shaping plate clamp and a back side shaping plate clamp, the palm side shaping plate clamp comprises a first connecting part and a palm rest part, one end of the first connecting part is movably connected with the palm rest part, and the other end of the first connecting part is provided with a hook-shaped part. One end of the first connecting part is movably connected with the palm rest part and used for bearing the position of a metacarpophalangeal joint, one end of the elastic rope is hung on the hook-shaped part, the other end of the elastic rope is fixed to the finger, the finger can be bent or straightened and the metacarpophalangeal joint can be moved by swinging the first connecting part, the purpose of elastic traction fixing can be achieved, functional rehabilitation training can be carried out as soon as possible, and the training effect is good. And the growth of callus can be promoted by dynamic and static combination.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical apparatus and instruments, and particularly relates to a metacarpal fracture reduction traction device. BACKGROUND

[0002] Metacarpal fracture is a common fracture of the hand, and common complications of metacarpal fracture include dysfunction of the metacarpophalangeal joint or interphalangeal joint, tendon adhesion and the like, and if such a fracture is not treated in time or treated improperly, deformity of the fracture can be left, the function and appearance of the hand are affected, and inconvenience is brought to life.

[0003] For the treatment of metacarpal fracture, generally, after manual reduction, fixation is performed and elasticity traction is supplemented to prevent deformity of the fracture. The current metacarpal fracture reduction traction device usually fixes the palm in the finger extension position and performs elasticity traction along the length direction of the finger, and the traction force does not need to be too large, but the finger cannot be bent for a long time, and blood circulation and joint movement can be poor, which brings certain influence to functional rehabilitation training in the middle and later stages. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a metacarpal fracture reduction traction device to solve the problems in the above background.

[0005] The utility model provides a metacarpal fracture reduction traction device, which comprises a palmar shaping plate clamp and a dorsal shaping plate clamp, the palmar shaping plate clamp comprises a first connecting part and a palm supporting part, the first connecting part is movably connected with the palm supporting part at one end, and the other end is provided with a hook-shaped part.

[0006] Further scheme: the first connecting part and the palm supporting part are connected through a loose-leaf, two sides of one end of the first connecting part connected with the loose-leaf are respectively provided with first bending parts, two sides of one end of the palm supporting part connected with the loose-leaf are respectively provided with second bending parts, one end of the loose-leaf is fixed to the first connecting part through the first bending parts, and the other end is fixed to the palm supporting part through the second bending parts.

[0007] Further scheme: the first connecting part and the palm supporting part are connected through a loose-leaf and a stacking part, one end of the loose-leaf is connected to the first connecting part, and the other end is connected to the stacking part, the stacking part is connected to the palm supporting part in a stacking mode, two sides of one end of the first connecting part connected with the loose-leaf are respectively provided with first bending parts, two sides of one end of the stacking part connected with the loose-leaf are respectively provided with second bending parts, one end of the loose-leaf is fixed to the first connecting part through the first bending parts, and the other end is fixed to the stacking part through the second bending parts.

[0008] Further scheme: the width and length of the palm supporting part are both greater than those of the stacking part.

[0009] Further scheme: the palm supporting part is provided with a wrist supporting part at the tail end.

[0010] A further solution: the wrist support is inclined relative to the palm support.

[0011] A further embodiment: the hook-shaped part is "S"-shaped, and one end of the hook-shaped part is connected to the end of the first connecting part.

[0012] A further embodiment: The back-side shaping plate clamp includes a hand back support and an extension connected by an arc-shaped portion, and a pressure pad is provided on one side of the hand back support.

[0013] A further embodiment: the extension is inclined relative to the back support, and the back support is inclined to the side opposite to where the pressure pad is located.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: one end of the first connecting part is movably connected to the palm support part to support the metacarpophalangeal joint; one end of the elastic rope is hung on the hook-shaped part, and the other end is fixed on the finger; by swinging the first connecting part, the finger can be bent or straightened, and the metacarpophalangeal joint can be moved, which can achieve the purpose of elastic traction fixation, enable early functional rehabilitation training, and promote callus growth by combining movement and stillness. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of some embodiments of the present utility model (I);

[0017] Figure 2 This is a side view (a) of the palm-side shaping plate clamp in some embodiments of the present invention;

[0018] Figure 3 This is a top view (a) of the palm-side shaping plate clamp in some embodiments of the present invention;

[0019] Figure 4 This is a side view of the back-side shaping plate clamp in some embodiments of the present invention;

[0020] Figure 5 This is a bottom view of the back-side shaping plate clamp in some embodiments of the present invention;

[0021] Figure 6 This is a schematic diagram (II) of the structure of some embodiments of the present utility model;

[0022] Figure 7 This is a side view (II) of the palm-side shaping plate clamp in some embodiments of the present invention;

[0023] Figure 8 This is a top view (II) of the palm-side shaping plate clamp in some embodiments of this utility model.

[0024] In the diagram: 1-Palm-side shaping plate clip; 11-Hook-shaped part; 12-First connecting part; 13-First bending part; 14-Latch; 15-Second bending part; 16-Palm support part; 17-Wrist support part; 18-Overlapping part; 2-Back-side shaping plate clip; 21-Back of hand support part; 22-Pressure pad; 23-Arch-shaped part; 24-Extension part. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-3 , Figures 6-8 As shown, this embodiment provides a metacarpal fracture reduction traction device, including a palmar shaping plate clip 1 and a dorsal shaping plate clip 2. The palmar shaping plate clip 1 includes a first connecting part 12 and a palm support part 16. One end of the first connecting part 12 is movably connected to the palm support part 16, and the other end is provided with a hook-shaped part 11. After the palmar shaping plate clip 1 is wrapped with a bandage, it is then fixed to the palm side by wrapping with a bandage. Similarly, after the dorsal shaping plate clip 2 is wrapped with a bandage, it is then fixed to the back side of the hand by wrapping with a bandage, thus fixing the fractured part after reduction. One end of the first connecting part 12 is movably connected to the palm support part 16 to support the metacarpophalangeal joint. One end of an elastic rope is hung on the hook-shaped part 11, and the other end is fixed to the finger. By swinging the first connecting part 12, the finger can be bent or straightened, and the metacarpophalangeal joint can be moved. This achieves the purpose of elastic traction fixation, allows for early functional rehabilitation training, and promotes callus growth through a combination of movement and stillness.

[0028] In some embodiments, please refer to Figure 2 , Figure 3As shown, the first connecting part 12 and the palm support part 16 are connected by a hinge 14. The first connecting part 12 and the hinge 14 are connected at one end with first bends 13 on both sides. The palm support part 16 and the hinge 14 are connected at one end with second bends 15 on both sides. One end of the hinge 14 is fixed to the first connecting part 12 via the first bends 13, and the other end is fixed to the palm support part 16 via the second bends 15. One end of the hinge 14 is placed on the upper surface of one end of the first connecting part 12, between the two first bends 13. A tool is used to clamp the first bends 13 and fold them over the hinge 14. The first bends 13 are then hammered to adhere to the upper surface of that end of the hinge 14, fixing that end of the hinge 14 to the first connecting part 12. The other end of the hinge 14 is fixed to the palm support part 16 in the same way. The first connecting part 12 can swing up and down relative to the palm support part 16, allowing the fingers to straighten, bend, and move the metacarpophalangeal joints. It should be noted that the first connecting part 12 and the palm support part 16 can also be connected by a hinge.

[0029] In some embodiments, please refer to Figure 7 , Figure 8 As shown, the first connecting part 12 and the palm support part 16 are connected by a hinge 14 and a folding part 18. One end of the hinge 14 is connected to the first connecting part 12, and the other end is connected to the folding part 18. The folding part 18 is folded and connected to the palm support part 16. The first connecting part 12 is provided with first bending parts 13 on both sides of the end where it is connected to the hinge 14, and the folding part 18 is provided with second bending parts 15 on both sides of the end where it is connected to the hinge 14. One end of the hinge 14 is fixed to the first connecting part 12 by the first bending part 13, and the other end is fixed to the folding part 18 by the second bending part 15. The folding part 18 can be folded and bound to the palm support part 16 by a bandage, which is convenient for disassembly and allows the bandage layer to contact the palm, avoiding direct contact between the rigid material of the palm support part 16 and the palm, thus preventing it from affecting the tactile feel.

[0030] In some embodiments, please refer to Figure 8 As shown, the width and length of the palm support portion 16 are both greater than those of the overlapping portion 18, which facilitates supporting the palm. The length of the overlapping portion 18 does not need to be too long, as long as it is convenient to overlap and connect with the palm support portion 16. The width of the overlapping portion 18 can be referenced to the width of the first connecting portion 12, so as to adapt to the width of the hinge 14.

[0031] In some embodiments, one end of the palm support portion 16 is movably connected to the first connecting portion 12 or the overlapping portion 18, and the other end is provided with a wrist support portion 17, that is, the end of the palm support portion 16 is provided with a wrist support portion 17, which fixes the palm and the arm relatively and prevents the fracture site from being dislocated again due to wrist joint movement.

[0032] In some embodiments, the wrist support 17 is inclined relative to the palm support 16. Because in the treatment of metacarpal fractures, it is necessary to reduce the fracture site and fix the wrist in a dorsiflexed position to promote fracture healing and prevent displacement of the fracture ends, the inclined wrist support 17 relative to the palm support 16 can better adapt to the shape of the wrist joint.

[0033] In some embodiments, the hook-shaped portion 11 is S-shaped, with one end of the hook-shaped portion 11 connected to the end of the first connecting portion 12. This connection method gives the hook-shaped portion 11 a slight elasticity relative to the first connecting portion 12, making traction easier and less strenuous. The hook-shaped portion 11 is generally located on one side of the first connecting portion 12, and preferably the wrist support portion 17 is inclined toward the side where the hook-shaped portion 11 is located.

[0034] In some embodiments, please refer to Figures 4-5 As shown, the back-side shaping plate clip 2 includes a back support portion 21 and an extension portion 24 connected by an arc-shaped portion 23. A pressure pad 22 is provided on one side of the back support portion 21. The pressure pad 22 is made of a soft and elastic material. The wrist is fixed in the dorsiflexion position, and the pressure pad 22 covers the fracture site to avoid excessive pressure on the fracture site when fixing and bandaging.

[0035] In some embodiments, the extension 24 is inclined relative to the back support 21, and the back support 21 is inclined to the side opposite to the pressure pad 22, which is more adaptable to the shape of the wrist joint.

[0036] Specifically, the metacarpal fracture reduction and traction device provided by this utility model has a simple structure and is easy to manufacture and use. The hook-shaped part 11, the first connecting part 12, the first bending part 13, the second bending part 15, the palm support part 16, the wrist support part 17, the overlapping part 18, the back of the hand support part 21, the arch-shaped part 23, and the extension part 24 can all be made of aluminum alloy strips, such as 1.4mm thick aluminum alloy strips. The first connecting part 12 and the overlapping part 18 can be made of aluminum alloy strips of the same width, such as 15mm wide aluminum alloy strips. For example, the length of the first connecting part 12 can be 20cm, and the length of the overlapping part 18 can be 5cm. A certain length can be cut along the width direction on both sides of one end of the first connecting part 12, and folded in the same direction to form the first bending part 13. The hinge 14 is pressed and connected to the first connecting part 12, and the other end of the hinge 14 is fixed to the palm support part 16 or the overlapping part 18 in the same way. After both ends of the hinge 14 are fixed, tape or bandage is used to wrap around the hinge 14 to prevent the hinge axis rod from falling off.

[0037] It should be noted that when one end of the hinge 14 is connected to the first connecting part 12 and the other end is connected to the overlapping part 18, the overlapping part 18 and the palm support part 16 need to be overlapped and connected by wrapping the connecting part with tape or bandage, so that the first connecting part 12 and the palm support part 16 become a whole, and the width of the palm support part 16 is greater than the width of the overlapping part 18. After connection, it can be used to wrap a bandage around the entire metacarpal fracture reduction traction device. The hook-shaped part 11 and the first connecting part 12 can be processed into a whole, the palm support part 16 and the wrist support part 17 can be processed into a whole, and the back of the hand support part 21, the arch-shaped part 23, and the extension part 24 can be processed into a whole.

[0038] The treatment of metacarpal fractures using this reduction and traction device includes the following steps:

[0039] 1. The patient should sit upright and clean their hands.

[0040] 2. Use a strip of medical tape about 1cm wide to first stick it from the base of the little finger on the ulnar side to the tip of the finger. After passing it through the elastic cord, fold it back and stick it to the base of the little finger on the radial side. Then, use a strip of transdermal tape about 1cm wide to continuously wrap around the little finger to strengthen the stability of the traction tape.

[0041] 3. After fracture reduction, place palmar shaping plate clip 1 on the palm side, and make the connection between the first connecting part 12 and the palm support part 16 support the metacarpophalangeal joint, and the connection between the palm support part 16 and the wrist support part 17 support the wrist joint. Place dorsal shaping plate clip 2 on the back side of the hand, so that the pressure pad 22 corresponds to the fracture site and the arched part 23 supports the wrist joint. Then, use a bandage to continuously wrap around the arm and palm to wrap and fix the metacarpal fracture reduction traction device, and use the bandage to wrap and knot intermittently to strengthen the fixation. At this time, the hook for hanging the elastic rope is located on the back side of the hand.

[0042] 4. Hang the elastic rope on the hook-shaped part 11;

[0043] 5. Hold the first connecting part 12 at the distal end and swing it up and down to move the metacarpophalangeal joints.

[0044] This metacarpal fracture reduction and traction device can passively or actively move the metacarpophalangeal joints during traction treatment, creating a new mechanical environment for the fracture ends and correcting the shortening and angular deformity of the fracture.

[0045] The palmar shaping plate clip 1 is placed on the palmar side, with the hook-shaped part 11 located on the back of the hand. One end of the elastic cord is hung on the hook-shaped part 11, and the other end is fixed to the finger. Under the action of traction, the metacarpophalangeal joint will be in a hyperextended position when static. Thus, while axial traction is applied to the finger, a dorsal traction force is also generated, which better corrects the dorsal angulation of the metacarpal fracture. Through finger flexion and extension and the movement of the metacarpal fracture reduction traction device, the tension and relaxation of the elastic cord achieve a dynamic elastic traction effect, which can further correct residual displacement of the fracture, promote blood circulation, effectively eliminate tissue edema and inflammatory response, and is more conducive to the mid-to-late stage joint function rehabilitation. This device can achieve a combination of dynamic and static effects. It maintains the relative stability of the fracture and produces a micro-motion effect. The intermittent stress stimulation and controllable micro-movements at the fracture ends can stimulate osteoblast activity, promote callus formation, and accelerate fracture healing.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A traction device for reducing metacarpal fractures, characterized in that, It includes a palm-side shaping plate clamp and a back-side shaping plate clamp. The palm-side shaping plate clamp includes a first connecting part and a palm support part. One end of the first connecting part is movably connected to the palm support part, and the other end is provided with a hook-shaped part.

2. The metacarpal fracture reduction and traction device according to claim 1, characterized in that, The first connecting part and the palm support part are connected by hinges. The first connecting part is provided with a first bending part on both sides of the end where it is connected to the hinge, and the palm support part is provided with a second bending part on both sides of the end where it is connected to the hinge. One end of the hinge is fixed to the first connecting part through the first bending part, and the other end is fixed to the palm support part through the second bending part.

3. The metacarpal fracture reduction and traction device according to claim 1, characterized in that, The first connecting part and the palm support part are connected by a hinge and a folding part. One end of the hinge is connected to the first connecting part and the other end is connected to the folding part. The folding part and the palm support part are folded together. The first connecting part and the hinge are provided with first bending parts on both sides of the end where the hinge is connected. The folding part and the hinge are provided with second bending parts on both sides of the end where the hinge is connected. One end of the hinge is fixed to the first connecting part through the first bending part and the other end is fixed to the folding part through the second bending part.

4. The metacarpal fracture reduction and traction device according to claim 3, characterized in that, The width and length of the palm support portion are both greater than those of the overlapping portion.

5. A metacarpal fracture reduction and traction device according to any one of claims 1-4, characterized in that, The palm support is provided with a wrist support at the end.

6. A metacarpal fracture reduction and traction device according to claim 5, characterized in that, The wrist rest is inclined relative to the palm rest.

7. The metacarpal fracture reduction and traction device according to claim 1, characterized in that, The hook-shaped part is "S" shaped, and one end of the hook-shaped part is connected to the end of the first connecting part.

8. The metacarpal fracture reduction and traction device according to claim 1, characterized in that, The back-side shaping plate clamp includes a hand back support and an extension connected by an arc-shaped portion, and a pressure pad is provided on one side of the hand back support.

9. A metacarpal fracture reduction and traction device according to claim 8, characterized in that, The extension is inclined relative to the back support, and the back support is inclined to the side away from the pressure pad.

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