CN221106181U - Deformed mallet-shaped finger external fixing support - Google Patents

Abstract

The application provides a deformed mallet-shaped finger external fixation support, and relates to the technical field of positioning. The deformed mallet-shaped external finger fixing support comprises a shaping piece, a finger joint fixing assembly and a wrist joint fixing assembly. The shaping piece comprises a first shaping surface, a second shaping surface and a third shaping surface which are sequentially connected, wherein the first shaping surface and the second shaping surface have a first included angle, the third shaping surface and the second shaping surface have a second included angle, the first included angle is larger than the second included angle, and the bending direction of the first shaping surface and the third shaping surface relative to the second shaping surface is opposite; the first shaping surface is used for contacting with the wrist, the second shaping surface is used for contacting with the inner palm surface, and the third shaping surface is used for contacting with the finger; the finger joint fixing component is connected with the shaping piece and used for fixing the shaping piece on fingers, and the wrist joint fixing component is connected with the shaping piece and used for fixing the shaping piece on wrists. The support has good positioning effect and is beneficial to finger rehabilitation.

Description

Deformed mallet-shaped finger external fixing support

Technical Field

The utility model relates to the technical field of positioning, in particular to a deformed mallet-shaped finger external fixation support.

Background

After extensor tendons at distal interphalangeal joints of the finger are damaged, the distal interphalangeal joints cannot dorsiflex to form hammer-like toes, which are generally classified into three types: 1. break of extensor tendinous alone; 2. extensor tendon pointing injury is accompanied by small avulsion fracture; 3. the extensor tendon breaks and the avulsion fracture. The external fixing brace is generally a straight fixing brace, namely, a straight fixing strip is bound on the finger, so that the fixing mode is simpler and the fixing mode is deficient. And this type of fracture is common in clinic, with most of the conservative external fixation treatments being dominant. If the external fixation support adopting the conservative treatment does not achieve satisfactory curative effect, the conservative treatment fails, and after the failure, repair reconstruction operation is needed, the operation cost is high, and the prognosis effect is poor.

Disclosure of utility model

The utility model aims to provide an external fixation brace for deformed mallet-shaped fingers, which can improve the fixation effect of fingers, is beneficial to the treatment of fresh mallet-shaped finger deformity caused by trauma and reduces the treatment cost.

Embodiments of the present utility model are implemented as follows:

In a first aspect, the present utility model provides a malformed mallet-like external fixation brace comprising:

The shaping piece comprises a first shaping surface, a second shaping surface and a third shaping surface which are sequentially connected, wherein the first shaping surface and the second shaping surface have a first included angle, the third shaping surface and the second shaping surface have a second included angle, the first included angle is larger than the second included angle, and the bending directions of the first shaping surface and the third shaping surface relative to the second shaping surface are opposite; the first shaping surface is used for contacting with the wrist, the second shaping surface is used for contacting with the inner palm surface, and the third shaping surface is used for contacting with the finger;

The finger joint fixing assembly is connected with the shaping piece and used for fixing the shaping piece on a finger, and the wrist joint fixing assembly is used for being connected with the shaping piece and used for fixing the shaping piece on a wrist.

In an alternative embodiment, the first included angle is set at 150-160 °.

Based on the scheme, the included angle between the first fixed surface and the second fixed surface is set at 150-160 degrees, when the fixed part is positioned at the palm and the wrist of a patient, the wrist joint is enabled to extend backwards by 20-30 degrees under the cooperation of the first fixed surface and the second fixed surface, the wrist joint positioning effect is good, and the comfort is improved while the treatment effect is met.

In an alternative embodiment, the second included angle is set at an angle of 120 ° -130 °.

Based on the scheme, the included angle between the second fixed surface and the third fixed surface is set at 120-degree 130 degrees, when the fixed part is positioned at the palm and the wrist of a patient, the proximal interphalangeal joint is enabled to bend by 50-60 degrees under the cooperation of the second fixed surface and the third fixed surface, the positioning effect of the interphalangeal joint is good, and the comfort is improved while the treatment effect is met.

In an alternative embodiment, a flexible layer is provided on at least one of the first, second and third profiles.

Based on the scheme, the shaping piece has certain structural strength for realizing qualitative positioning of the wrist joint and the finger joint, and is not easy to forcedly bend, namely the shaping piece is generally made of a material with higher hardness, for example, the shaping piece is made of an alloy material such as stainless steel, and if the shaping piece made of the stainless steel is directly contacted with the skin of a patient, the touch feeling is poor. By arranging the flexible layer on at least one of the first fixed surface, the second fixed surface and the third fixed surface, the flexible layer is contacted with the skin of a patient during positioning, and the comfort is improved. Obviously, in order to avoid the influence of the flexible layer on the joint angle, the flexible layer can be set into a film layer, and the film layer is stuck on the surface of the shaping piece, so that the shaping piece can be prevented from being in direct contact with the skin.

In an alternative embodiment, the flexible layer is simultaneously attached to the first, second and third profiles.

Based on above-mentioned scheme, flexible layer structure as an organic whole, structural strength is high, does not have the seam, and direct laminating is on the setting piece surface, can cover the setting face completely and be used for with patient skin contact's surface, with setting piece cooperation effectual.

In an alternative embodiment, the shaping member has a first fixing surface facing away from the first shaping surface, a first positioning groove is formed in the first fixing surface, and the wrist joint fixing assembly is clamped in the first positioning groove.

Based on above-mentioned scheme, fix the fixed subassembly of wrist joint through first positioning groove, the fixed subassembly of wrist joint is difficult for slipping from the setting piece, and is fixed firm, and is fixed effectual.

In an alternative embodiment, the wrist fixing assembly comprises a first fixing strap which is clamped in the first positioning groove and used for binding the shaping piece on the wrist.

Based on above-mentioned scheme, through first locating groove location first fixed band, the difficult slippage of following the setting piece of first fixed band is fixed firm, and is fixed effectual.

In an alternative embodiment, the shaping member has a second fixing surface facing away from the third fixing surface, a second positioning groove is formed in the second fixing surface, and the knuckle fixing assembly is clamped in the second positioning groove.

Based on above-mentioned scheme, fix the subassembly through second constant head tank location knuckle, the fixed subassembly of knuckle is difficult for slipping from the setting piece, and is fixed firm, and is fixed effectual.

In an alternative embodiment, the knuckle fixing assembly comprises a second fixing strap, wherein the second fixing strap is clamped in the second positioning groove and used for binding the shaping piece on the finger.

Based on above-mentioned scheme, through second positioning groove location second fixed band, the second fixed band is difficult for slipping from the setting piece, and is fixed firm, and is fixed effectual.

In an alternative embodiment, the number of the second fixing bands is plural, and the plural second fixing bands are arranged at intervals in the length direction of the shaping member.

Based on the scheme, the finger joint length is longer, the shaping piece is fixed on the finger joint through the cooperation of a plurality of second fixed bands, the shaping piece is more balanced in stress, the pressure applied to the finger is not easy to concentrate, and the compression force applied to the finger is reduced while the positioning effect is good.

The embodiment of the utility model has the beneficial effects that:

In summary, the deformed mallet-shaped external finger fixing brace provided in this embodiment fixes the shaping piece on the finger, palm and wrist of the patient through the knuckle fixing assembly and the wrist fixing assembly, effectively combines the finger, palm and wrist, has a good fixing effect, is firmly fixed, can improve the success rate of conservative treatment, and avoids the occurrence of external fixation failure. Meanwhile, from the anatomical point of view, the proximal segment of the extensor tendon side tendon bundles is interosseous muscle participation, the distal end is lumbroid muscle participation, and the two side tendon bundles merge in the middle phalanx and end at the distal phalanx base. So both side tendons have the function of flexing the metacarpophalangeal joint and extending the fingertip joint. After the second and third fixed surfaces are used for qualitative treatment of the finger joints at a certain angle, two side tendons are loosened, so that the passive metacarpophalangeal joints, the proximal interphalangeal joints and the overstretched distal interphalangeal joints can enable the final tendons to be fully loosened to reduce tension so that broken ends are fully contacted to be beneficial to tendon healing or fracture healing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a deformed mallet-shaped external fixation brace according to an embodiment of the present utility model;

FIG. 2 is a schematic view of another view of an external fixation brace with a mallet-shaped deformity according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a shaping member according to an embodiment of the present utility model.

Icon:

100-shaping parts; 110-a first profile; 120-a second profile; 130-a third profile; 140-a first positioning groove; 150-a second positioning groove; 200-a knuckle fixation assembly; 300-wrist fixation assembly.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Currently, straight braces are generally used for the treatment of fresh mallet-like finger deformities caused by trauma. The existing fixing support is not firm in fixing the hammer toe, tendons are not in a loose state, the external fixing treatment effect can be affected, and recovery of a patient is not facilitated.

In view of this, the designer provides a deformity mallet-shaped finger external fixation brace which can improve the fixation effect, facilitate patient rehabilitation and reduce the operation cost.

Referring to fig. 1-3, in the present embodiment, the malformed mallet-shaped extradigital fixation brace includes a shaping member 100, a knuckle fixation assembly 200, and a wrist fixation assembly 300. The shaping member 100 comprises a first shaping surface 110, a second shaping surface 120 and a third shaping surface 130 which are sequentially connected, wherein the first shaping surface 110 and the second shaping surface 120 have a first included angle, the third shaping surface 130 and the second shaping surface 120 have a second included angle, the first included angle is larger than the second included angle, and the bending directions of the first shaping surface 110 and the third shaping surface 130 relative to the second shaping surface 120 are opposite; the first fixed surface 110 is used for contacting with the wrist, the second fixed surface 120 is used for contacting with the inner palm surface, and the third fixed surface 130 is used for contacting with the finger; the knuckle mount assembly 200 is coupled to the form 100 for securing the form 100 to a finger, and the wrist mount assembly is coupled to the form 100 for securing the form 100 to a wrist.

With the above, the working principle of the malformed mallet-shaped finger external fixation brace provided in this embodiment is as follows:

Please refer to fig. 1 or fig. 2, a treatment of the index finger is taken as an example for illustration. The fixing member 100 is fixed on the finger, palm and wrist of the patient through the knuckle fixing assembly 200 and the wrist fixing assembly 300, the finger, palm and wrist are effectively combined, the fixing effect is good, the fixing is firm and fixed, the success rate of conservative treatment can be improved, and the occurrence of external fixation failure is avoided. Meanwhile, from the anatomical point of view, the proximal segment of the extensor tendon side tendon bundles is interosseous muscle participation, the distal end is lumbroid muscle participation, and the two side tendon bundles merge in the middle phalanx and end at the distal phalanx base. So both side tendons have the function of flexing the metacarpophalangeal joint and extending the fingertip joint. After the second fixing surface 120 and the third fixing surface 130 are used for making the knuckle form a certain angle for qualitative, two lateral tendons are loosened, so that the passive flexor metacarpophalangeal joint, the flexor side interphalangeal joint and the overstretched distal interphalangeal joint can enable the final tendons to be fully loosened to reduce tension so that broken ends are fully contacted to be beneficial to tendon healing or fracture healing.

Details of the malformed mallet-like external fixation brace provided by the present application are set forth below by way of example.

In this embodiment, optionally, the angle of the first included angle is set to 150 ° to 160 °. By such design, when the forming part 100 is positioned at the palm and wrist position of the patient, the wrist joint is extended back by 20-30 degrees under the cooperation of the first forming surface 110 and the second forming surface 120, the wrist joint positioning effect is good, and the comfort is improved while the treatment effect is satisfied. It will be appreciated that the angle of dorsi extension of the wrist joint is the angle determined by the position at which the wrist is normally straightened and the position after bending, which is complementary to the first included angle.

It should be appreciated that, by changing the first angle between the first fixing surface 110 and the second fixing surface 120, the angle of the wrist joint back extension can be adjusted, and in actual use, the fixing member 100 can be bent according to the requirement, and the fixing member 100 can maintain the inconvenient shape after bending. Or designing a plurality of shaping pieces 100 according to the requirements, wherein the angles of each shaping piece 100 are different, and selecting the shaping piece 100 with the corresponding angle according to the requirements.

Further, the first angle may be 150 °, 155 °, 160 °, or the like.

In this embodiment, the angle of the second included angle is optionally set to 120 ° -130 °. By such design, when the forming part 100 is positioned at the palm and wrist position of the patient, the proximal interphalangeal joint is enabled to bend 50-60 degrees under the cooperation of the second forming surface 120 and the third forming surface 130, the positioning effect of the interphalangeal joint is good, and the comfort is improved while the treatment effect is satisfied. It should be understood that the angle of flexion of the interphalangeal joint is the angle determined by the position of the normal straightened finger after bending, and is complementary to the second included angle.

It should be understood that the second included angle can be adjusted as required, and reference may be made to the adjustment design of the first included angle, which is not described in detail in this embodiment to avoid redundancy of description.

Further, the first angle may be 120 °, 125 °, 130 °, or the like.

In this embodiment, optionally, at least one of the first molding surface 110, the second molding surface 120, and the third molding surface 130 is provided with a flexible layer. In order to achieve qualitative positioning of the wrist joint and the knuckle, the shaping member 100 has a certain structural strength, and is not easy to be forcedly bent, i.e., the shaping member 100 is generally made of a material with higher hardness, for example, the shaping member 100 is made of an alloy material such as stainless steel, and if the shaping member 100 made of stainless steel is directly contacted with the skin of a patient, the touch feeling is poor. By providing a flexible layer on at least one of the first, second and third profiles 110, 120, 130, the flexible layer is positioned in contact with the patient's skin, improving comfort. Obviously, in order to avoid the influence of the flexible layer on the joint angle, the flexible layer may be set as a film layer, and is adhered to the surface of the shaping member 100, so that the shaping member 100 can be prevented from being in direct contact with the skin.

Further, the flexible layer is simultaneously attached to the first molding surface 110, the second molding surface 120, and the third molding surface 130. That is, the flexible layer is of an integrated structure, has high structural strength, is free from seams, is directly attached to the surface of the shaping piece 100, can completely cover the surface of the shaping surface for being in contact with the skin of a patient, and has good matching effect with the shaping piece 100.

In this embodiment, optionally, the shaping member 100 has a first fixing surface facing away from the first shaping surface 110, and the first fixing surface is provided with a first positioning groove 140, and the wrist fixing assembly 300 is clamped in the first positioning groove 140. The wrist fixing assembly 300 is positioned through the first positioning groove 140, the wrist fixing assembly 300 is not easy to slip from the shaping member 100, the fixation is firm, and the fixation effect is good.

In this embodiment, the wrist fixing assembly 300 includes a first fixing strap, which is clamped in the first positioning groove 140 and is used for binding the shaping member 100 on the wrist. The first fixing strap is positioned through the first positioning groove 140, and is not easy to slip from the shaping piece 100, so that the fixing is firm and the fixing effect is good.

It should be understood that the first fixing strap may be a rectangular strip, and the two ends of the first fixing strap are fixedly connected by using a hook and loop fastener, which is beneficial to adjusting tightness and dismounting. Correspondingly, the first positioning groove 140 is a rectangular groove, and can be effectively clamped with the first fixing strap.

In this embodiment, optionally, the shaping member 100 has a second fixing surface facing away from the third fixing surface 130, and a second positioning groove 150 is disposed on the second fixing surface, and the knuckle fixing assembly 200 is clamped in the second positioning groove 150. The finger joint fixing assembly 200 is positioned through the second positioning groove 150, the finger joint fixing assembly 200 is not easy to slip from the shaping piece 100, the fixation is firm, and the fixation effect is good.

Optionally, the knuckle fixing assembly 200 includes a second fixing strap, which is clamped in the second positioning groove 150 and is used for binding the shaping member 100 to the finger. The second fixing strap is positioned through the second positioning groove 150, and is not easy to slip from the shaping piece 100, so that the fixing is firm and the fixing effect is good.

It should be understood that the second fixed band can be the rectangle strip, and the both ends of second fixed band adopt the magic to paste fixed connection, do benefit to the regulation elasticity, and do benefit to the dismouting. Correspondingly, the second positioning groove 150 is a rectangular groove, and can be effectively clamped with the second fixing strap.

Optionally, the number of the second fixing bands is plural, and the plural second fixing bands are arranged at intervals in the length direction of the shaping member 100. For example, in the present embodiment, the number of the second fixing bands is two. It should be appreciated that the length of the knuckle is longer, the fixing piece 100 is fixed on the knuckle through the cooperation of a plurality of second fixing belts, the stress of the fixing piece 100 is more balanced, the pressure applied to the finger is not easy to concentrate, and the compression force applied to the finger is reduced while the positioning effect is good.

It should be noted that, the number of the second positioning grooves 150 is identical to that of the second fixing bands, and each second fixing band may be clamped in a corresponding one of the second positioning grooves 150.

The deformed mallet-shaped external finger fixing support provided by the embodiment can fix the wrist joint and the metacarpophalangeal joint simultaneously, and the metacarpophalangeal joint of the injured finger and the metacarpophalangeal joint of other fingers can restore normal activity degree through functional exercise. Meanwhile, the metacarpophalangeal joint, the buckling proximal interphalangeal joint and the overstretching distal interphalangeal joint can enable the extensor tendon to be sufficiently relaxed to reduce tension so that the broken ends are sufficiently contacted to be beneficial to tendon healing or fracture healing.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A malformed mallet-like external fixation brace, comprising:

The fixing device comprises a fixing piece (100), a knuckle fixing assembly (200) and a wrist fixing assembly (300), wherein the fixing piece (100) comprises a first fixing surface (110), a second fixing surface (120) and a third fixing surface (130) which are sequentially connected, the first fixing surface (110) and the second fixing surface (120) are provided with a first included angle, the third fixing surface (130) and the second fixing surface (120) are provided with a second included angle, the first included angle is larger than the second included angle, and the bending directions of the first fixing surface (110) and the third fixing surface (130) relative to the second fixing surface (120) are opposite; the first fixed surface (110) is used for contacting with a wrist, the second fixed surface (120) is used for contacting with an inner palm surface, and the third fixed surface (130) is used for contacting with a finger;

The finger joint fixing assembly (200) is connected with the shaping piece (100) and used for fixing the shaping piece (100) on a finger, and the wrist joint fixing assembly is connected with the shaping piece (100) and used for fixing the shaping piece (100) on a wrist.

2. The malformed mallet-like external fixation brace of claim 1, wherein:

the angle of the first included angle is set to 150-160 degrees.

3. The malformed mallet-like external fixation brace of claim 1, wherein:

The angle of the second included angle is set to be 120-130 degrees.

4. The malformed mallet-like external fixation brace of claim 1, wherein:

At least one of the first fixed surface (110), the second fixed surface (120) and the third fixed surface (130) is provided with a flexible layer.

5. The malformed mallet-like external fixation brace of claim 4, wherein:

The flexible layer is simultaneously attached to the first fixed surface (110), the second fixed surface (120) and the third fixed surface (130).

6. The malformed mallet-like external fixation brace of claim 1, wherein:

The shaping piece (100) is provided with a first fixing surface deviating from the first shaping surface (110), a first positioning groove (140) is formed in the first fixing surface, and the wrist joint fixing assembly (300) is clamped in the first positioning groove (140).

7. The malformed mallet-like external fixation brace of claim 6, wherein:

The wrist joint fixing assembly (300) comprises a first fixing band, wherein the first fixing band is clamped in the first positioning groove (140) and used for binding the shaping piece (100) on a wrist.

8. The malformed mallet-like external fixation brace of claim 1, wherein:

the shaping piece (100) is provided with a second fixing surface deviating from the third shaping surface (130), a second positioning groove (150) is formed in the second fixing surface, and the knuckle fixing assembly (200) is clamped in the second positioning groove (150).

9. The malformed mallet-like external fixation brace of claim 8, wherein:

the knuckle fixing assembly (200) comprises a second fixing belt which is clamped in the second positioning groove (150) and used for binding the shaping piece (100) on a finger.

10. The malformed mallet-like external fixation brace of claim 9, wherein:

the number of the second fixing belts is multiple, and the second fixing belts are distributed at intervals in the length direction of the shaping piece (100).