External fixation brace for distal radius fracture

Abstract

The utility model provides a distal radius fracture external fixing brace, and relates to the field of fixing appliances, the distal radius fracture external fixing brace comprises an outer side positioning bending plate, an inner side positioning bending plate and a fixing unit, the outer side positioning bending plate is used for fitting with the outer side of an arm and the outer side of a hand back, the inner side positioning bending plate is used for fitting with the inner side of the arm and the palm center surface, and the fixing unit is used for fixing the distal radius fracture. The fixing unit is connected with the outer side positioning bent plate and the inner side positioning bent plate at the same time so that the outer side positioning bent plate and the inner side positioning bent plate can be matched and clamp the arm and the palm. The external fixation brace is not easy to shift and loosen during fixation, has a good fixation effect, and is beneficial to rehabilitation of patients with distal radius fractures.

Description

Technical Field

[0001] The utility model relates to the field of fixing devices, in particular to an external fixing brace for distal radius fractures. Background Art

[0002] The area 2 to 3 cm away from the distal end of the radius and the wrist joint surface belongs to the transition area between cancellous bone and compact bone. It is easy to fracture when it is hit by external force, that is, distal radius fracture, which is the most common fracture type in clinical practice. Among the distal radius fractures, Colles fracture (also known as distal radius fracture) accounts for the largest proportion. The clinical treatment of Colles fracture is mainly conservative treatment. The essence of Colles fracture reduction technique is to traction and reduce the fracture displacement. Through various techniques such as lifting, palmar flexion and ulnar deviation, and downward shaking, the shortening of the patient's fracture end can be eliminated, the angle displacement can be restored, the local deformity and limb length can be restored to normal, the interlocking of the distal radial fracture segment can be released, and the fracture ends can be well occluded and supported, and finally a near-anatomical or anatomical reduction effect can be achieved. If the external fixation brace used for conservative treatment does not achieve satisfactory results, conservative treatment fails, and revision and reconstruction surgery is required after failure, the cost of surgery is high and the prognosis is poor.

[0003] The inventors have found that the existing external fixation brace for distal radius fracture has at least the following disadvantages:

[0004] Existing fixation braces for treating Colles fractures generally use straight braces, such as the technical solution recorded in the existing patent CN201621384517.6-New Distal Radius Fracture Rehabilitation Splint. Straight braces cannot stabilize the length and palmar inclination angle of the radius for fracture fixation. The loss of length and angle will affect the treatment effect of external fixation and cause fixation failure. Utility Model Content

[0005] The utility model aims to provide an external fixation brace for distal radius fracture, which can improve the fixation effect and facilitate the rehabilitation of patients with distal radius fracture.

[0006] The embodiment of the utility model is achieved as follows:

[0007] In a first aspect, the utility model provides an external fixation brace for distal radius fracture, comprising:

[0008] An outer positioning bending plate, an inner positioning bending plate and a fixing unit, wherein the outer positioning bending plate is used to fit with the outer side of the arm and the outer side of the back of the hand, and the inner positioning bending plate is used to fit with the inner side of the arm and the palm surface, and the fixing unit is connected to the outer positioning bending plate and the inner positioning bending plate at the same time, so that the outer positioning bending plate and the inner positioning bending plate cooperate with and clamp the arm and palm.

[0009] In an optional embodiment, the angle of the bending portion of the outer positioning bending plate is set to 120°-130°.

[0010] Based on the above scheme, when the outer positioning bending plate and the inner positioning bending plate are used to clamp the arm and palm, the wrist joint can be kept roughly flexed at 50° to 60°, which is conducive to fracture reduction.

[0011] In an optional embodiment, the angle position of the bending portion of the inner positioning bending plate is 120°-130°.

[0012] Based on the above scheme, when the outer positioning bending plate and the inner positioning bending plate are used to clamp the arm and palm, the two can keep the wrist joint approximately 50° to 60° of flexion, which is conducive to fracture reduction.

[0013] In an optional embodiment, the outer positioning bending plate has a first arc-shaped positioning groove for the arm and palm to be embedded in.

[0014] Based on the above scheme, after the arm and palm are embedded in the first arc-shaped positioning groove, the contact area between the arm and palm and the outer positioning bending plate is large, the arm and palm are evenly stressed, and it is not easy to crush the arm and palm, which is beneficial for the patient's arm and palm to maintain the set shape for a long time, which is beneficial for the rehabilitation of fracture patients, and the rehabilitation process is highly comfortable.

[0015] In an optional embodiment, a plurality of air holes are provided on the bottom wall or the side wall of the first arc-shaped positioning groove.

[0016] Based on the above scheme, the outer positioning bending plate is in contact with the arm for a long time, and the air holes can increase the air flow frequency inside and outside the outer positioning bending plate. The skin surface is not easily damaged due to long-term compression, and can regulate the surface temperature of the arm skin, thereby improving the patient's comfort.

[0017] In an optional embodiment, the inner positioning bending plate includes a first positioning plate and a second positioning plate, the first positioning plate has a second arc-shaped positioning groove for the arm to be embedded in, and the second positioning plate is used to fit with the side of the thumb.

[0018] Based on the above scheme, after the inner positioning bending plate contacts the arm, the contact area between the two is large, the force at the contact position between the arm and the first positioning plate is uniform, and the arm is not easily crushed, which is beneficial for the patient's arm to maintain the set shape for a long time, is beneficial for the recovery of fracture patients, and the recovery process is highly comfortable.

[0019] In an optional embodiment, a flexible positioning ball is provided on the second positioning plate, and the flexible positioning ball is used to be embedded in a recessed portion formed in the palm of the hand.

[0020] Based on the above solution, when the second positioning plate is positioned on the patient's thumb, the finger is in a certain bending state, a concave portion is formed in the palm, and the flexible positioning ball contacts the palm to support the palm, which has high comfort and good positioning effect.

[0021] In an optional embodiment, the fixing unit includes a plurality of fixing straps, each of which is used to connect to the outer positioning bending plate and the inner positioning bending positioning plate to tie the outer positioning bending plate and the inner positioning bending positioning plate to the arm.

[0022] Based on the above scheme, the outer positioning bending plate and the inner positioning bending plate are tied to the arm with a fixing belt, which is easy to operate and use, and is conducive to adjusting the tightness, and is suitable for different patients.

[0023] In an optional embodiment, the two ends of the fixing belt are detachably connected via a Velcro assembly.

[0024] Based on the above scheme, the binding and separation operations of the fixing belt are convenient, and the Velcro positioning effect is good. It is not easy to loosen automatically after binding, which is conducive to maintaining the relative position of the outer positioning bending plate and the inner positioning bending plate.

[0025] In an optional embodiment, a first positioning groove is provided on the outer surface of the outer positioning bending plate, and a second positioning groove is provided on the outer surface of the inner positioning bending plate, and the fixing belt is simultaneously embedded in the paired first positioning groove and second positioning groove to prevent the fixing belt from sliding relative to the outer positioning bending plate and the inner positioning bending plate.

[0026] Based on the above scheme, when the fixing belt is binding the outer positioning bending plate and the inner positioning bending plate, the fixing belt is embedded in the corresponding first positioning groove and the second positioning groove at the same time, and the fixing belt is firmly matched with the outer positioning bending plate and the inner positioning bending plate. The fixing belt is not easy to slide relative to the outer positioning bending plate and the inner positioning bending plate, and the binding effect is good.

[0027] The beneficial effects of the embodiments of the utility model are:

[0028] In summary, the external fixation brace for distal radius fracture provided in this embodiment uses the outer positioning bending plate and the inner positioning bending plate to clamp the arm and palm, so that the wrist joint is at a certain angle, and the ulnar deflection angle is between 20°-30°. After the wrist joint and the ulnar deflection angle are adjusted, the outer positioning bending plate and the inner positioning bending plate are locked on the arm and palm by the fixing unit, and then the arm and palm are kept in the set shape by the outer positioning bending plate and the inner positioning bending plate. After positioning in this way, the hinge effect of the dorsal periosteum can be effectively utilized to achieve the fracture stabilization effect, which is conducive to the recovery of the palm inclination angle, and the limb tension can also be reduced to avoid the re-movement and angular shortening of the fracture end, and further promote the recovery of wrist joint function. Early postoperative functional training is conducive to the improvement of local blood circulation, avoiding the occurrence of complications such as joint stiffness, and effectively improving the absorption rate of hematoma, promoting the growth of bone callus, and improving the efficacy, which effectively improves the technical problems existing in traditional external fixation treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of a distal radius fracture external fixation brace from one perspective according to an embodiment of the utility model;

[0031] Figure 2 It is a structural schematic diagram of the external fixation brace for distal radius fracture of an embodiment of the utility model from another perspective;

[0032] Figure 3 This is a schematic structural diagram of the outer positioning bending plate of an embodiment of the utility model;

[0033] Figure 4 It is a schematic structural diagram of the inner positioning bending plate of an embodiment of the utility model.

[0034] icon:

[0035] 100 - outer positioning bending plate; 110 - first positioning groove; 200 - inner positioning bending plate; 210 - first positioning plate; 220 - second positioning plate; 230 - second positioning groove; 300 - fixing unit; 310 - fixing belt. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does 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 utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Example

[0043] Please combine Figure 1-Figure 4 The present embodiment provides an external fixation brace for distal radius fracture, including an outer positioning bending plate 100, an inner positioning bending plate 200 and a fixing unit 300. The outer positioning bending plate 100 is used to fit with the outer side of the arm and the outer side of the back of the hand, and the inner positioning bending plate 200 is used to fit with the inner side of the arm and the palm surface. The fixing unit 300 is connected to the outer positioning bending plate 100 and the inner positioning bending plate 200 at the same time, so that the outer positioning bending plate 100 and the inner positioning bending plate 200 cooperate and clamp the arm and palm.

[0044] Based on the above, the use of the external fixation brace for distal radius fracture provided in this embodiment is as follows:

[0045] The outer positioning bending plate 100 is arranged on the outer side of the arm, and the inner positioning bending plate 200 is arranged on the inner side of the arm. The outer positioning bending plate 100 and the inner positioning bending plate 200 are used to clamp the arm and palm, so that the wrist joint is at a certain angle, and the ulnar deflection angle is between 20°-30°. After the wrist joint and the ulnar deflection angle are adjusted, the outer positioning bending plate 100 and the inner positioning bending plate 200 are locked on the arm and palm by the fixing unit 300, and then the arm and palm are kept in the set shape by the outer positioning bending plate 100 and the inner positioning bending plate 200. After positioning in this way, the hinge effect of the dorsal periosteum can be effectively utilized to achieve the fracture stabilization effect, which is conducive to the recovery of the palmar inclination angle, and the limb tension can also be reduced to avoid the re-movement and angular shortening of the fracture end, further promoting the recovery of wrist joint function. Early postoperative functional training is beneficial to improving local blood circulation, avoiding the occurrence of complications such as joint stiffness, and effectively increasing the rate of hematoma absorption, promoting callus growth, improving efficacy, and effectively improving the technical problems existing in traditional external fixation treatment.

[0046] The following embodiments illustrate the details of the external fixation brace for distal radius fracture provided by the present application by way of examples.

[0047] In this embodiment, the angle of the bending portion of the outer positioning bending plate 100 is optionally set to 120°-130°. When the outer positioning bending plate 100 and the inner positioning bending plate 200 are used to clamp the arm and palm, the wrist joint can be kept roughly flexed at 50°-60°, which is conducive to fracture reduction.

[0048] It should be understood that the angle of the bending portion of the outer positioning bending plate 100 can be set to 120°, 125° or 130°, etc. The degree of the angle of the bending portion of the outer positioning bending plate 100 is complementary to the angle of flexion of the wrist joint. That is, when the angle of the bending portion of the outer positioning bending plate 100 is set to 120°, the angle of flexion of the wrist joint is 60°, and so on.

[0049] In this embodiment, optionally, the angle position of the bending portion of the inner positioning bending plate is 120°-130°.

[0050] With such a design, when the outer positioning bending plate 100 and the inner positioning bending plate 200 cooperate to clamp the arm and palm, the wrist joint can be kept roughly flexed at 50° to 60°, which is beneficial to fracture reduction.

[0051] It should be understood that the angle of the bend of the inner positioning bending plate 200 can be set to 120°, 125° or 130°, etc. The degree of the angle of the bend of the inner positioning bending plate 200 is complementary to the angle of wrist flexion, that is, when the angle of the bend of the inner positioning bending plate 200 is set to 120°, the angle of wrist flexion is 60°, and so on. At the same time, the angle of the bend of the inner positioning bending plate 200 is adapted to the angle of the bend of the outer positioning bending plate 100. Generally, the angle of the bend of the inner positioning bending plate 200 is smaller than the angle of the bend of the outer positioning bending plate 100.

[0052] In this embodiment, optionally, the outer positioning bending plate 100 has a first arc-shaped positioning groove for the arm and the palm to be inserted into. The groove width of the first arc-shaped positioning groove gradually decreases in the direction from the arm to the palm.

[0053] With such a design, after the arm and palm are embedded in the first arc-shaped positioning groove, the contact area between the arm and palm and the outer positioning bending plate 100 is large, the arm and palm are evenly stressed, and the arm and palm are not easily crushed, which is beneficial for the patient's arm and palm to maintain the set shape for a long time, is beneficial for the recovery of fracture patients, and the recovery process is highly comfortable.

[0054] In this embodiment, optionally, a plurality of air holes are provided on the bottom wall or the side wall of the first arc-shaped positioning groove, and the air holes may be round holes or square holes.

[0055] It should be noted that the outer positioning bending plate 100 is in contact with the arm for a long time, and the ventilation holes can increase the air flow frequency inside and outside the outer positioning bending plate 100, so that the skin surface is not easily damaged due to long-term compression, and can also play a role in regulating the surface temperature of the arm skin, thereby improving the patient's comfort.

[0056] In this embodiment, the inner positioning bending plate 200 optionally includes a first positioning plate 210 and a second positioning plate 220, wherein the first positioning plate 210 has a second arc-shaped positioning groove for the arm to be inserted, and the second positioning plate 220 is used to fit the side of the thumb. The first positioning plate 210 and the second positioning plate 220 can be set as an integrated structure, which has high structural strength and is easy to process and manufacture.

[0057] It should be understood that after the inner positioning bending plate 200 contacts the arm, the contact area between the two is large, the force at the contact position between the arm and the first positioning plate 210 is uniform, and the arm is not easily crushed, which is beneficial for the patient's arm to maintain the set shape for a long time, is beneficial for the recovery of fracture patients, and the recovery process is highly comfortable.

[0058] In this embodiment, optionally, a flexible positioning ball is provided on the second positioning plate 220, and the flexible positioning ball is used to be embedded in a recessed portion formed in the center of the palm.

[0059] In this way, when the second positioning plate 220 is positioned on the patient's thumb, the finger is in a certain bending state, a concave part is formed in the palm, and the flexible positioning ball contacts the palm to support the palm, which has high comfort and good positioning effect.

[0060] In this embodiment, optionally, the fixing unit 300 includes a plurality of fixing straps 310, each fixing strap 310 is used to connect to the outer positioning bending plate 100 and the inner positioning bending positioning plate to tie the outer positioning bending plate 100 and the inner positioning bending positioning plate to the arm.

[0061] When in use, first clamp the outer positioning bending plate 100 and the inner positioning bending plate 200 on the arm, and then use the fixing belt 310 to tie the outer positioning bending plate 100 and the inner positioning bending plate 200 to the arm. It is easy to operate and use, and is easy to adjust the tightness, suitable for different patients.

[0062] It should be understood that the two ends of the fixing belt 310 are detachably connected by a Velcro assembly. The fixing belt 310 is easy to tie and separate, and the Velcro has a good positioning effect. It is not easy to automatically loosen after tying, which is conducive to maintaining the relative position of the outer positioning bending plate 100 and the inner positioning bending plate 200.

[0063] That is, the two ends of the fixing belt 310 can fix the burr part and the round part of the Velcro assembly respectively, and after the fixing belt 310 is formed into a ring, the burr part and the round part are bonded together. By adjusting the bonding position, the tightness of the fixing belt 310 can be adjusted, and the adjustment range is wide and the adjustment is flexible.

[0064] In this embodiment, optionally, a first positioning groove 110 is provided on the outer surface of the outer positioning bending plate 100, and a second positioning groove 230 is provided on the outer surface of the inner positioning bending plate 200, and the fixing belt 310 is simultaneously embedded in the matching first positioning groove 110 and the second positioning groove 230 to prevent the fixing belt 310 from sliding relative to the outer positioning bending plate 100 and the inner positioning bending plate 200.

[0065] With such a design, when the fixing belt 310 is binding the outer positioning bending plate 100 and the inner positioning bending plate 200, the fixing belt 310 is simultaneously embedded in the corresponding first positioning groove 110 and the second positioning groove 230, and the fixing belt 310 is firmly matched with the outer positioning bending plate 100 and the inner positioning bending plate 200. The fixing belt 310 is not easy to slide relative to the outer positioning bending plate 100 and the inner positioning bending plate 200, and the binding effect is good.

[0066] It should be understood that the number of the fixing straps 310 can be three, two fixing straps 310 are set corresponding to the arms, and one fixing strap 310 is set corresponding to the position of the palm, which has a good binding effect.

[0067] In this embodiment, the external fixation brace for distal radius fracture has good fixation effect, is not easy to shift or loosen, and is beneficial to the patient's recovery.

[0068] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An external fixation brace for distal radius fracture, characterized in that: include: An outer positioning bending plate (100), an inner positioning bending plate (200) and a fixing unit (300), wherein the outer positioning bending plate (100) is used to fit the outer side of the arm and the outer side of the back of the hand, and the inner positioning bending plate (200) is used to fit the inner side of the arm and the palm surface, and the fixing unit (300) is connected to the outer positioning bending plate (100) and the inner positioning bending plate (200) at the same time, so that the outer positioning bending plate (100) and the inner positioning bending plate (200) cooperate with and clamp the arm and the palm; The included angle of the bending portion of the outer positioning bending plate (100) is set to 120°; the included angle position of the bending portion of the inner positioning bending plate is 120°; The inner positioning bending plate (200) comprises a first positioning plate (210) and a second positioning plate (220), wherein the first positioning plate (210) has a second arc-shaped positioning groove for the arm to be inserted into, and the second positioning plate (220) is used to fit with the side of the thumb; The second positioning plate (220) is provided with a flexible positioning ball, and the flexible positioning ball is used to be embedded in a recessed portion formed in the palm of the hand.

2. The external fixation brace for distal radius fracture according to claim 1, characterized in that: The outer positioning bending plate (100) has a first arc-shaped positioning groove for the arm and palm to be embedded in.

3. The external fixation brace for distal radius fracture according to claim 2, characterized in that: A plurality of air holes are arranged on the bottom wall or the side wall of the first arc-shaped positioning groove.

4. The external fixation brace for distal radius fracture according to claim 1, characterized in that: The fixing unit (300) comprises a plurality of fixing straps (310), each of the fixing straps (310) being used to connect with the outer positioning bending plate (100) and the inner positioning bending positioning plate so as to tie the outer positioning bending plate (100) and the inner positioning bending positioning plate to the arm.

5. The external fixation brace for distal radius fracture according to claim 4, characterized in that: The two ends of the fixing belt (310) are detachably connected via a Velcro assembly.

6. The external fixation brace for distal radius fracture according to claim 4, characterized in that: A first positioning groove (110) is provided on the outer surface of the outer positioning bending plate (100), and a second positioning groove (230) is provided on the outer surface of the inner positioning bending plate (200), and the fixing belt (310) is simultaneously embedded in the paired first positioning groove (110) and second positioning groove (230) to prevent the fixing belt (310) from sliding relative to the outer positioning bending plate (100) and the inner positioning bending plate (200).

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