Traditional Chinese Medicine small splint external fixation device

Abstract

The present invention discloses a Traditional Chinese Medicine (TCM) splint external fixation device, comprising five dorsal splints, five radial splints, five volar splints, and an ulnar splint for use when the wrist joint is in the neutral, dorsiflexion, flexion, functional, and support positions, respectively. The TCM splint external fixation device of the present invention can adapt to changes in wrist fracture classification and staging. It has a modular structure, is simple and quick to use, can improve the comfort of fracture external fixation treatment, and can reduce the occurrence of sequelae such as joint stiffness in the later stages.

Description

Technical Field

[0001] The present invention belongs to the technical field of traditional Chinese medicine splints, and in particular relates to a traditional Chinese medicine splint external fixation device. Background Art

[0002] Common distal radius fractures are generally classified as extension, flexion, and Barton's fractures. They are often treated with manual reduction and external fixation using splints, plaster casts, or plaster-based splints. This non-surgical treatment approach is very popular with patients. However, some challenges arise. For example, in the early stages of external fixation after fracture reduction, the wrist joint must be maintained in a specific position, either in flexion or extension, to prevent further displacement. If a splint is used for external fixation, a specific model or custom fabrication is required to force the affected limb into the desired position. In the later stages of treatment, the forced position must be released, and the wrist must be restored to a neutral or functional position. Functional exercises are then performed to prevent joint stiffness, particularly in specific positions. Failure to do so can lead to serious sequelae. This necessitates replacing or remaking the external fixation device, which is tedious and complex. Furthermore, remaking the device may be difficult to integrate with the anterior fixation splint. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a traditional Chinese medicine splint external fixation device, the purpose of which is to improve the comfort of fracture external fixation treatment.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a small splint external fixation device of traditional Chinese medicine, comprising a first splint assembly, a second splint assembly, a third splint assembly and a fourth splint assembly, the first splint assembly comprising a dorsal splint, the second splint assembly comprising a radial splint, the third splint assembly comprising a palmar splint, and the fourth splint assembly comprising an ulnar splint, the dorsal splint comprising a first dorsal plate used when the wrist joint is in a neutral position, and / or a second dorsal plate used when the wrist joint is in a dorsiflexion position, and / or a third dorsal plate used when the wrist joint is in a flexed position, and / or a fourth dorsal plate used when the wrist joint is in a functional position, and / or a fifth dorsal plate used when the wrist joint is in a wrist support position; The radial splint includes a first radial plate used when the wrist joint is in a neutral position, and / or a second radial plate used when the wrist joint is in a dorsiflexion position, and / or a third radial plate used when the wrist joint is in a flexed position, and / or a fourth radial plate used when the wrist joint is in a functional position, and / or a fifth radial plate used when the wrist joint is in a wrist support position; the volar splint includes a first volar plate used when the wrist joint is in a neutral position, and / or a second volar plate used when the wrist joint is in a dorsiflexion position, and / or a third volar plate used when the wrist joint is in a flexed position, and / or a fourth volar plate used when the wrist joint is in a functional position, and / or a fifth volar plate used when the wrist joint is in a wrist support position.

[0005] The first splint assembly further includes a first proximal splint and a first middle splint connected to the first proximal splint, and the first middle splint is detachably connected to the back splint.

[0006] The second splint assembly further includes a second proximal splint and a second middle splint connected to the second proximal splint, and the second middle splint is detachably connected to the radial splint.

[0007] The third splint assembly further includes a third proximal splint and a third middle splint connected to the third proximal splint, and the third middle splint is detachably connected to the palmar splint.

[0008] The first dorsal plate includes a first dorsal connecting portion and a first dorsal fixing portion connected to the first dorsal connecting portion and used to place the wrist joint in a neutral position. The first radial plate includes a first radial connecting portion and a first radial fixing portion connected to the first radial connecting portion. The length of the first volar plate is smaller than the length of the first dorsal plate and the first radial plate.

[0009] The second radial plate includes a second radial connecting portion and a second radial fixing portion connected to the second radial connecting portion, the second volar plate includes a second volar connecting portion and a second volar fixing portion connected to the second volar connecting portion and used to place the wrist joint in a dorsiflexion position, and the length of the second dorsal plate is smaller than the length of the second volar plate and the second radial plate.

[0010] The third dorsal plate includes a third dorsal connecting portion and a third dorsal fixing portion connected to the third dorsal connecting portion and used to place the wrist joint in a flexed position. The third radial plate includes a third radial connecting portion and a third radial fixing portion connected to the third radial connecting portion. The length of the third volar plate is smaller than the length of the third dorsal plate and the third radial plate.

[0011] The fourth radial plate includes a fourth radial connecting portion and a fourth radial fixing portion connected to the fourth radial connecting portion. The length of the fourth volar plate is smaller than the length of the fourth dorsal plate and the fourth radial plate, and the length of the fourth radial plate is greater than the length of the fourth dorsal plate.

[0012] The fifth dorsal plate includes a fifth dorsal connecting portion and a fifth dorsal fixing portion connected to the fifth dorsal connecting portion and used to place the wrist joint in a wrist-supporting position; the fifth radial plate includes a fifth radial connecting portion and a fifth radial fixing portion connected to the fifth radial connecting portion; the fifth volar plate includes a fifth volar connecting portion and a fifth volar fixing portion connected to the fifth volar connecting portion and used to place the wrist joint in a wrist-supporting position; the length of the fifth radial plate is smaller than the lengths of the fifth dorsal plate and the fifth volar plate.

[0013] The length of the first clamping plate assembly and / or the second clamping plate assembly and / or the third clamping plate assembly and / or the fourth clamping plate assembly is adjustable.

[0014] The Traditional Chinese Medicine splint external fixation device of the present invention can adapt to changes in wrist fracture classification and staging. It has a modular structure, is simple and quick to use, can improve the comfort of fracture external fixation treatment, and reduce the occurrence of sequelae such as joint stiffness in the later stage. With the neutral position of the affected wrist joint as the standard structure, the distal end of the splint component can be selected according to the fracture classification during use, and assembled, or pre-assembled for external fixation treatment. In the middle and later stages of the treatment, the original neutral position component can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] This manual includes the following drawings, which show the following contents:

[0016] Figure 1 This is a schematic diagram of the use state of the Chinese medicine splint external fixation device of the present invention in the neutral position;

[0017] Figure 2 This is a schematic diagram of the use state of the small splint external fixation device of the present invention in the wrist dorsiflexion position;

[0018] Figure 3 This is a schematic diagram of the use state of the small splint external fixation device of traditional Chinese medicine in the wrist flexion position of the present invention;

[0019] Figure 4 This is a schematic diagram of the use state of the Chinese medicine splint external fixation device of the present invention in the functional position;

[0020] Figure 5 This is a schematic diagram of the use state of the small splint external fixation device of traditional Chinese medicine of the present invention in the wrist support position;

[0021] Figure 6 It is a schematic diagram of the structure of three types of proximal splints;

[0022] Figure 7 It is a schematic diagram of the structure of three types of middle section splints;

[0023] Figure 8 It is a structural diagram of the inner panel;

[0024] The following are marked in the figure: 1, first middle section splint; 2, second middle section splint; 3, third middle section splint; 4, first dorsal connection portion; 5, first dorsal fixing portion; 6, second dorsal plate; 7, third dorsal connection portion; 8, third dorsal fixing portion; 9, fourth dorsal plate; 10, fifth dorsal connection portion; 11, fifth dorsal fixing portion; 12, first radial connection portion; 13, first radial fixing portion; 14, second radial connection portion; 15, second radial fixing portion; 16, third radial lateral connection; 17, third radial fixation portion; 18, fourth radial connection portion; 19, fourth radial fixation portion; 20, fifth radial connection portion; 21, fifth radial fixation portion; 22, first volar plate; 23, second volar connection portion; 24, second volar fixation portion; 25, third volar plate; 26, fourth volar plate; 27, fifth volar connection portion; 28, fifth volar fixation portion; 29, first proximal splint; 30, second proximal splint; 31, third proximal splint. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific implementation methods of the present invention through the description of embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and to facilitate its implementation.

[0026] It should be noted that in the following embodiments, the "first", "second" and "third" do not represent an absolute distinction in structure and / or function, nor do they represent a sequence of execution, but are merely for the convenience of description.

[0027] like Figures 1 to 8As shown, the present invention provides a traditional Chinese medicine small splint external fixation device, comprising a first splint assembly, a second splint assembly, a third splint assembly and a fourth splint assembly. When in use, the first splint assembly, the second splint assembly, the third splint assembly and the fourth splint assembly are fastened to the human wrist joint by a strap. The first splint assembly comprises a dorsal splint and a first inner panel, and the dorsal splint and the first inner panel are plug-in connected. The second splint assembly comprises a radial splint and a second inner panel, and the radial splint and the second inner panel are plug-in connected. The third splint assembly comprises a palmar splint and a third inner panel, and the palmar splint and the third inner panel are plug-in connected. The fourth splint assembly comprises an ulnar splint and a fourth inner panel, and the ulnar splint and the fourth inner panel are plug-in connected.

[0028] Specifically, if Figures 1 to 5 As shown, the dorsal splint has five different structural models, namely, a first dorsal plate for use when the wrist joint is in a neutral position, a second dorsal plate 6 for use when the wrist joint is in a dorsiflexion position, a third dorsal plate for use when the wrist joint is in a flexed position, a fourth dorsal plate 9 for use when the wrist joint is in a functional position or in later exercise activities, and a fifth dorsal plate for use when the wrist joint is in a supported wrist position. The radial splint has five different structural models, namely, a first radial plate for use when the wrist joint is in a neutral position, a second radial plate for use when the wrist joint is in a dorsiflexion position, a third radial plate for use when the wrist joint is in a flexed position, a fourth radial plate for use when the wrist joint is in a functional position or in later exercise activities, and a fifth radial plate for use when the wrist joint is in a supported wrist position. The volar splint has five models with different structures. The five volar splints are a first volar plate 22 used when the wrist joint is in a neutral position, a second volar plate used when the wrist joint is in a dorsiflexion position, a third volar plate 25 used when the wrist joint is in a flexion position, a fourth volar plate 26 used when the wrist joint is in a functional position or in late exercise activities, and a fifth volar plate used when the wrist joint is in a support position.

[0029] The first splint assembly also includes a first proximal splint 29 and a first middle splint 1 connected to the first proximal splint 29, and the first middle splint 1 is detachably connected to the dorsal splint. The second splint assembly also includes a second proximal splint 30 and a second middle splint 2 connected to the second proximal splint 30, and the second middle splint 2 is detachably connected to the radial splint. The third splint assembly also includes a third proximal splint 31 and a third middle splint 3 connected to the third proximal splint 31, and the third middle splint 3 is detachably connected to the palmar splint. The fourth splint assembly also includes a fourth proximal splint and a fourth middle splint connected to the fourth proximal splint, and the fourth middle splint is detachably connected to the ulnar splint.

[0030] like Figure 1As shown, the first splint assembly, the second splint assembly, the third splint assembly and the fourth splint assembly are fastened to the human wrist joint by a strap so that the wrist joint is in a neutral position. The first splint assembly and the third splint assembly are arranged relative to each other, and the second splint assembly and the fourth splint assembly are arranged relative to each other. At this time, the first middle section splint 1 is connected to the first dorsal plate and the first proximal section splint 29, the second middle section splint 2 is connected to the first radial plate and the second proximal section splint 30, the third middle section splint 3 is connected to the first volar plate 22 and the third proximal section splint 31, and the fourth middle section splint is connected to the ulnar section splint and the fourth proximal section splint. The first inner panel is plug-connected to the first proximal section splint 29 and the first dorsal plate, the second inner panel is plug-connected to the second proximal section splint 30 and the first radial plate, the third inner panel is plug-connected to the third proximal section splint 31 and the first volar plate 22, and the fourth inner panel is plug-connected to the fourth proximal section splint and the ulnar section splint.

[0031] like Figure 2 As shown, the first splint assembly, the second splint assembly, the third splint assembly and the fourth splint assembly are fastened to the human wrist joint by a strap, so that the wrist joint is in the wrist dorsiflexion position, the first splint assembly and the third splint assembly are arranged relative to each other, and the second splint assembly and the fourth splint assembly are arranged relative to each other. At this time, the first middle section splint 1 is connected to the second dorsal plate 6 and the first proximal section splint 29, the second middle section splint 2 is connected to the second radial plate and the second proximal section splint 30, the third middle section splint 3 is connected to the second volar plate and the third proximal section splint 31, and the fourth middle section splint is connected to the ulnar section splint and the fourth proximal section splint. The first inner panel is plug-connected to the first proximal section splint 29 and the second dorsal plate 6, the second inner panel is plug-connected to the second proximal section splint 30 and the second radial plate, the third inner panel is plug-connected to the third proximal section splint 31 and the second volar plate, and the fourth inner panel is plug-connected to the fourth proximal section splint and the ulnar section splint.

[0032] like Figure 3 As shown, the first, second, third and fourth splint assemblies are fastened to the wrist joint of the human body by a strap, so that the wrist joint is in a flexed position, the first splint assembly and the third splint assembly are arranged relative to each other, and the second splint assembly and the fourth splint assembly are arranged relative to each other. At this time, the first middle section splint 1 is connected to the third dorsal plate and the first proximal section splint 29, the second middle section splint 2 is connected to the third radial plate and the second proximal section splint 30, the third middle section splint 3 is connected to the third volar plate 25 and the third proximal section splint 31, and the fourth middle section splint is connected to the ulnar section splint and the fourth proximal section splint. The first inner panel is plug-connected to the first proximal section splint 29 and the third dorsal plate, the second inner panel is plug-connected to the second proximal section splint 30 and the third radial plate, the third inner panel is plug-connected to the third proximal section splint 31 and the third volar plate 25, and the fourth inner panel is plug-connected to the fourth proximal section splint and the ulnar section splint.

[0033] like Figure 4 As shown, the first splint assembly, the second splint assembly, the third splint assembly and the fourth splint assembly are fastened to the human wrist joint by a strap, so that the wrist joint is in a functional position or maintains a fixed structure during later exercise activities. The first splint assembly and the third splint assembly are arranged relative to each other, and the second splint assembly and the fourth splint assembly are arranged relative to each other. At this time, the first middle section splint 1 is connected to the fourth dorsal plate 9 and the first proximal section splint 29, the second middle section splint 2 is connected to the fourth radial plate and the second proximal section splint 30, the third middle section splint 3 is connected to the fourth volar plate 26 and the third proximal section splint 31, and the fourth middle section splint is connected to the ulnar section splint and the fourth proximal section splint. The first inner panel is connected to the first proximal section splint 29 and the fourth dorsal plate 9 by plug-in connection, the second inner panel is connected to the second proximal section splint 30 and the fourth radial plate by plug-in connection, the third inner panel is connected to the third proximal section splint 31 and the fourth volar plate 26 by plug-in connection, and the fourth inner panel is connected to the fourth proximal section splint and the ulnar section splint.

[0034] like Figure 5 As shown, the first splint assembly, the second splint assembly, the third splint assembly and the fourth splint assembly are fastened to the human wrist joint by a strap, so that the wrist joint is in a wrist-supporting position, the first splint assembly and the third splint assembly are arranged relative to each other, and the second splint assembly and the fourth splint assembly are arranged relative to each other. At this time, the first middle section splint 1 is connected to the fifth dorsal plate and the first proximal section splint 29, the second middle section splint 2 is connected to the fifth radial plate and the second proximal section splint 30, the third middle section splint 3 is connected to the fifth volar plate and the third proximal section splint 31, and the fourth middle section splint is connected to the ulnar section splint and the fourth proximal section splint. The first inner panel is connected to the first proximal section splint 29 and the fifth dorsal plate by plug-in connection, the second inner panel is connected to the second proximal section splint 30 and the fifth radial plate by plug-in connection, the third inner panel is connected to the third proximal section splint 31 and the fifth volar plate by plug-in connection, and the fourth inner panel is connected to the fourth proximal section splint and the ulnar section splint.

[0035] like Figure 1As shown, the first dorsal plate includes a first dorsal connecting portion 4 and a first dorsal fixation portion 5 connected to the first dorsal connecting portion 4 and used to maintain the wrist joint in a neutral position. The first radial plate includes a first radial connecting portion 12 and a first radial fixation portion 13 connected to the first radial connecting portion 12. The length of the first volar plate 22 is shorter than that of the first dorsal plate and the first radial plate. The first dorsal plate is a straight plate-shaped supra-wrist fixation structure that maintains the wrist joint in a neutral extended position during external fixation. One end of the first dorsal connecting portion 4 is connected to the first mid-section splint 1, and the other end of the first dorsal connecting portion 4 is fixedly connected to the first dorsal fixation portion 5. The shape of the first dorsal fixation portion 5 matches the palmar-dorsal shape of the human hand. The first dorsal fixation portion 5 is located at the palmar-dorsal position of the human hand, extending from the wrist joint to the palmar-dorsal position, while the first dorsal connecting portion 4 extends from the wrist joint to the forearm. The first radial plate has a narrow plate structure and, in a side view, extends outward from the radial styloid process. One end of the first radial connecting portion 12 is connected to the second middle splint 2, and the other end of the first radial connecting portion 12 is fixedly connected to the first radial fixing portion 13, and the length direction of the first radial fixing portion 13 and the length direction of the first radial connecting portion 12 form an angle, and the angle is an obtuse angle. The length direction of the first radial connecting portion 12 is parallel to the length direction of the human forearm, and the first radial fixing portion 13 extends toward the outside of the first radial connecting portion 12, and the length of the first radial fixing portion 13 is less than the length of the first radial connecting portion 12, and the width direction of the first radial fixing portion 13 is parallel to the width direction of the first radial connecting portion 12. The shape of the first radial fixing portion 13 matches the radial side shape of the human palm, and the first radial fixing portion 13 is located at the radius position of the human palm, and the first radial fixing portion 13 extends from the wrist joint to the radius of the palm, and the first radial fixing portion 13 extends toward the outside of the radial styloid process, and the first radial connecting portion 12 extends from the wrist joint to the human forearm. The first volar plate 22 extends from the wrist joint to the human forearm. The end of the first volar plate 22 located at the wrist joint is flush with the transverse palmar crease of the wrist joint. The ulnar splint is located at the most distal end of the ulnar styloid process.

[0036] like Figure 2As shown, the second radial plate includes a second radial connecting portion 14 and a second radial fixing portion 15 connected to the second radial connecting portion 14. The second volar plate includes a second volar connecting portion 23 and a second volar fixing portion 24 connected to the second volar connecting portion 23 and used to place the wrist joint in dorsiflexion. The length of the second dorsal plate 6 is shorter than that of the second volar plate and the second radial plate. The second dorsal plate 6 extends from the wrist joint to the human forearm. The end of the second dorsal plate 6 located at the wrist joint is flush with the radial styloid process to facilitate dorsiflexion of the wrist joint. The second palmar plate is a structure that rises upward from the palm side of the wrist. When worn on the wrist joint, it can force the wrist joint to stretch dorsally. One end of the second palmar connecting portion 23 is connected to the third middle splint 3, and the other end of the second palmar connecting portion 23 is fixedly connected to the second palmar fixing portion 24. The shape of the second palmar fixing portion 24 matches the palm surface of the human hand. The second palmar fixing portion 24 is located on the palm surface of the human hand. The second palmar fixing portion 24 extends from the wrist joint to the palm surface of the palm, and the second palmar connecting portion 23 extends from the wrist joint to the human forearm. The length direction of the second palmar connecting portion 23 and the length direction of the second palmar fixing portion 24 form an obtuse angle. The second palmar fixing portion 24 extends obliquely toward the top of the second palmar connecting portion 23, so that the palm and the human forearm maintain a certain angle, forcing the wrist joint to stretch dorsally. The length direction of the second palmar connecting portion 23 is parallel to the length direction of the human forearm, and the width direction of the second palmar fixing portion 24 is parallel to the width direction of the second palmar connecting portion 23. The second radial plate is a narrow plate, with the farthest end tilted toward the dorsal side of the wrist joint from the top view of the splint. One end of the second radial connecting portion 14 is connected to the second middle splint 2, and the other end of the second radial connecting portion 14 is fixedly connected to the second radial fixing portion 15. There is an angle between the length direction of the second radial fixing portion 15 and the length direction of the second radial connecting portion 14, and the angle is obtuse. The length direction of the second radial connecting portion 14 is parallel to the length direction of the human forearm. The second radial fixing portion 15 extends obliquely toward the upper side of the second radial connecting portion 14. The length of the second radial fixing portion 15 is less than the length of the second radial connecting portion 14. There is an angle between the width direction of the radial fixing portion 15 and the width direction of the second radial connecting portion 14, and the angle is an acute angle. The length direction of the second radial fixing portion 15 is parallel to the length direction of the second palmar fixing portion 24. The shape of the second radial fixing portion 15 matches the shape of the radial side of the human palm. The second radial fixing portion 15 is located at the radius of the human palm. The second radial fixing portion 15 extends from the wrist joint to the radius of the palm. The second radial connecting portion 14 extends from the wrist joint to the human forearm. The ulnar splint is located at the distal end of the ulnar styloid process.

[0037] like Figure 3As shown, the third dorsal plate includes a third dorsal connecting portion 7 and a third dorsal fixing portion 8 connected to the third dorsal connecting portion 7 and used to place the wrist joint in a flexed position. The third radial plate includes a third radial connecting portion 16 and a third radial fixing portion 17 connected to the third radial connecting portion 16. The length of the third volar plate 25 is shorter than that of the third dorsal plate and the third radial plate. The third dorsal plate is a structure that rises upward from the palm side of the wrist. When worn on the wrist joint, it can force the wrist joint to flex in the palm side. One end of the third dorsal connecting portion 7 is connected to the third middle section splint 3, and the other end of the third dorsal connecting portion 7 is fixedly connected to the third dorsal fixing portion 8. The shape of the third dorsal fixing portion 8 matches the palmar and back shape of the human palm. The third dorsal fixing portion 8 is located at the palmar and back position of the human palm. The third dorsal fixing portion 8 extends from the wrist joint to the palmar and flexes from the palmar to the palmar side. The third dorsal connecting portion 7 extends from the wrist joint to the human forearm. The length of the third dorsal connecting portion 7 forms an obtuse angle with the length of the third dorsal fixing portion 8. The third dorsal fixing portion 8 extends obliquely downward from the third dorsal connecting portion 7, maintaining a certain angle between the palm and the forearm, forcing the wrist joint to flex toward the palmar surface. The length of the third dorsal connecting portion 7 is parallel to the length of the forearm, and the width of the third dorsal fixing portion 8 is parallel to the width of the third dorsal connecting portion 7. The third radial plate is a narrow plate, with its distal end flexing toward the palmar surface of the wrist joint from the top view of the plate. One end of the third radial connecting portion 16 is connected to the second middle section splint 2, and the other end of the third radial connecting portion 16 is fixedly connected to the third radial fixing portion 17. There is an angle between the length direction of the third radial fixing portion 17 and the length direction of the third radial connecting portion 16, and the angle is an obtuse angle. The length direction of the third radial connecting portion 16 is parallel to the length direction of the human forearm. The third radial fixing portion 17 extends obliquely toward the bottom of the third radial connecting portion 16. The length of the third radial fixing portion 17 is less than the length of the third radial connecting portion 16. The third radial fixing portion 17 has a length of 16, and the width of the third radial connecting portion 16 forms an acute angle with the width of the third radial fixing portion 17. The length of the third radial fixing portion 17 is parallel to the length of the third dorsal fixing portion 8. The shape of the third radial fixing portion 17 matches the radial shape of the human palm. The third radial fixing portion 17 is located at the radius of the human palm. The third radial fixing portion 17 extends from the wrist joint to the radius of the palm, and the third radial connecting portion 16 extends from the wrist joint to the human forearm. The third volar plate 25 extends from the wrist joint to the human forearm. The end of the third volar plate 25 located at the wrist joint is flush with the transverse palmar crease of the wrist joint. The ulnar splint is located at the distal end of the ulnar styloid process.

[0038] like Figure 4As shown, the fourth radial plate includes a fourth radial connecting portion 18 and a fourth radial fixation portion 19 connected to the fourth radial connecting portion 18. The fourth volar plate 26 is shorter than the fourth dorsal plate 9 and the fourth radial plate, while the fourth radial plate is longer than the fourth dorsal plate 9. The fourth dorsal plate 9 extends from the wrist joint to the forearm, with the end of the fourth dorsal plate 9 extending beyond the radial styloid process and covering the radial styloid process. The fourth radial plate is narrow and extends outward from the radial styloid process in a side view. One end of the fourth radial connecting portion 18 is connected to the second middle splint 2, and the other end of the fourth radial connecting portion 18 is fixedly connected to the fourth radial fixing portion 19, and an angle is formed between the length direction of the fourth radial fixing portion 19 and the length direction of the fourth radial connecting portion 18, and the angle is an obtuse angle. The length direction of the fourth radial connecting portion 18 is parallel to the length direction of the human forearm, the fourth radial fixing portion 19 extends toward the outside of the fourth radial connecting portion 18, the length of the fourth radial fixing portion 19 is less than the length of the fourth radial connecting portion 18, the width direction of the fourth radial fixing portion 19 is parallel to the width direction of the fourth radial connecting portion 18, the shape of the fourth radial fixing portion 19 matches the radial shape of the human palm, the fourth radial fixing portion 19 is located at the radius of the human palm, the fourth radial fixing portion 19 extends from the wrist joint to the radius of the palm, the fourth radial fixing portion 19 extends toward the outside of the radial styloid process, and the fourth radial connecting portion 18 extends from the wrist joint to the human forearm. The fourth volar plate 26 extends from the wrist joint to the forearm, with the end of the fourth volar plate 26 extending beyond the radial styloid and covering the radial styloid. The ulnar plate extends from the wrist joint to the forearm, with the end of the ulnar plate extending beyond the radial styloid and covering the radial styloid. Therefore, with the exception of the dorsal plate, whose distal end slightly extends beyond the radial styloid, the other three plates are flush with the volar wrist crease, facilitating wrist function training while maintaining wrist external fixation.

[0039] like Figure 5As shown, the fifth dorsal plate includes a fifth dorsal connecting portion 10 and a fifth dorsal fixing portion 11 connected to the fifth dorsal connecting portion 10 and used to place the wrist joint in a wrist-supporting position; the fifth radial plate includes a fifth radial connecting portion 20 and a fifth radial fixing portion 21 connected to the fifth radial connecting portion 20; the fifth volar plate includes a fifth volar connecting portion 27 and a fifth volar fixing portion 28 connected to the fifth volar connecting portion 27 and used to place the wrist joint in a wrist-supporting position; the length of the fifth radial plate is smaller than the lengths of the fifth dorsal plate and the fifth volar plate. The fifth dorsal plate is a straight, supra-wrist fixation structure. One end of the fifth dorsal connecting portion 10 is connected to the first mid-section splint 1, and the other end is fixedly connected to the fifth dorsal fixing portion 11. The shape of the fifth dorsal fixing portion 11 matches the dorsal aspect of the human palm and is located on the dorsal aspect of the human palm. The fifth dorsal fixing portion 11 extends from the wrist joint to the dorsal aspect of the palm, while the fifth dorsal connecting portion 10 extends from the wrist joint to the forearm. The fifth radial plate is a narrow plate that extends outward from the radial styloid process in a side view. One end of the fifth radial connecting portion 20 is connected to the second middle splint 2, and the other end of the fifth radial connecting portion 20 is fixedly connected to the fifth radial fixing portion 21. The length direction of the fifth radial fixing portion 21 and the length direction of the fifth radial connecting portion 20 form an angle, and the angle is an obtuse angle. The length direction of the fifth radial connecting portion 20 is parallel to the length direction of the human forearm. The fifth radial fixing portion 21 extends toward the outside of the fifth radial connecting portion 20. The length of the fifth radial fixing portion 21 is less than the length of the fifth radial connecting portion 20. The width direction of the fifth radial fixing portion 21 is parallel to the width direction of the fifth radial connecting portion 20. The shape of the fifth radial fixing portion 21 matches the radial side of the human palm. The fifth radial fixing portion 21 is located at the radius of the human palm. The fifth radial fixing portion 21 extends from the wrist joint to the radius of the palm. The fifth radial fixing portion 21 extends toward the outside of the radial styloid process. The fifth radial connecting portion 20 extends from the wrist joint to the human forearm. The fifth palmar plate is fork-shaped at the palmar transverse line on the palmar side of the wrist joint. When externally fixed, it can support the carpal bone and squeeze the distal end of the radius in accordance with the palmar shape of the wrist joint; one end of the fifth palmar connecting part 27 is connected to the third middle section splint 3, and the other end of the fifth palmar connecting part 27 is fixedly connected to the fifth palmar fixing part 28. When worn, the fifth palmar fixing part 28 is used to support the carpal bone and squeeze the distal end of the radius. The shape of the fifth palmar fixing part 28 matches the palmar shape of the wrist joint. The fifth palmar fixing part 28 extends from the wrist joint to the palm surface of the palm, and the fifth palmar connecting part 27 extends from the wrist joint to the human forearm. The palm is located between the fifth dorsal fixing part 11 and the fifth palmar fixing part 28, and the ulnar splint is located at the distal end of the ulnar styloid process.

[0040] like Figure 4As shown, the fourth radial plate includes a fourth radial connecting portion 18 and a fourth radial fixation portion 19 connected to the fourth radial connecting portion 18. The fourth volar plate 26 is shorter than the fourth dorsal plate 9 and the fourth radial plate, while the fourth radial plate is longer than the fourth dorsal plate 9. The fourth dorsal plate 9 extends from the wrist joint to the forearm, with the end of the fourth dorsal plate 9 extending beyond the radial styloid process and covering the radial styloid process. The fourth radial plate is narrow and extends outward from the radial styloid process in a side view. One end of the fourth radial connecting portion 18 is connected to the second middle splint 2, and the other end of the fourth radial connecting portion 18 is fixedly connected to the fourth radial fixing portion 19, and an angle is formed between the length direction of the fourth radial fixing portion 19 and the length direction of the fourth radial connecting portion 18, and the angle is an obtuse angle. The length direction of the fourth radial connecting portion 18 is parallel to the length direction of the human forearm, the fourth radial fixing portion 19 extends toward the outside of the fourth radial connecting portion 18, the length of the fourth radial fixing portion 19 is less than the length of the fourth radial connecting portion 18, the width direction of the fourth radial fixing portion 19 is parallel to the width direction of the fourth radial connecting portion 18, the shape of the fourth radial fixing portion 19 matches the radial shape of the human palm, the fourth radial fixing portion 19 is located at the radius of the human palm, the fourth radial fixing portion 19 extends from the wrist joint to the radius of the palm, the fourth radial fixing portion 19 extends toward the outside of the radial styloid process, and the fourth radial connecting portion 18 extends from the wrist joint to the human forearm. The fourth volar plate 26 extends from the wrist joint to the human forearm. The end of the fourth volar plate 26 exceeds the radial styloid process. The fourth volar plate 26 covers the radial styloid process. The ulnar splint is located at the distal end of the ulnar styloid process.

[0041] The first dorsal connecting part 4 is detachably connected to the first middle section splint 1, the second dorsal connecting part is detachably connected to the first middle section splint 1, the third dorsal connecting part 7 is detachably connected to the first middle section splint 1, the fourth dorsal connecting part is detachably connected to the first middle section splint 1, and the fifth dorsal connecting part 10 is detachably connected to the first middle section splint 1, which facilitates the replacement of the dorsal splint.

[0042] like Figure 1As shown, the first dorsal connecting portion 4 is connected to the first middle splint 1, and the connection position of the first dorsal connecting portion 4 and the first middle splint 1 is adjustable. The first proximal splint 29 is connected to the first middle splint 1, and the connection position of the first proximal splint 29 and the first middle splint 1 is adjustable, thereby enabling the length of the first splint assembly to be adjusted, thereby adapting to the external fixation treatment needs of different patients with varying arm lengths. The first dorsal panel has a accommodating groove for accommodating the first inner panel. The first dorsal connecting portion 4 is provided with side groove buckles. The first inner panel has side runners for the side groove buckles to fit into. There are multiple side groove buckles, all of which are arranged in two rows on the first dorsal connecting portion 4, and the two rows of side groove buckles are arranged symmetrically. All side groove buckles in the same row are arranged sequentially along the length direction of the first dorsal connecting portion 4. Two side runners are provided on the first inner panel, and the two rows of side groove buckles respectively fit into the two side runners on the first inner panel. The side groove buckles and the side runners serve as guides. The side groove buckle and the length indication groove are arranged on the same side wall of the first back connecting part 4. The side groove buckle extends toward the inner side of the side wall, that is, the side groove buckle extends into the accommodating groove. The side slide groove is a groove arranged on the outer wall surface of the first inner panel. The side slide groove extends along the entire length direction of the first inner panel. Two side slide grooves are arranged on two opposite outer walls of the first inner panel. The side groove buckle on the first back connecting part 4 is a rectangular block structure. A length indication groove is provided on the first back connecting part 4. There are multiple length indication grooves, and the multiple length indication grooves are arranged in sequence along the length direction of the first back connecting part 4. The length indication groove is a groove that penetrates the side wall of the first back connecting part 4 along the thickness direction of the side wall. There are multiple length indication grooves. All length indication grooves are arranged in two rows on the first back connecting part 4, and the length indication grooves in the two rows are arranged symmetrically. All length indication grooves in the same row are arranged in sequence along the length direction of the first back connecting part 4.

[0043] like Figure 2As shown, the second back connecting portion is connected to the first middle clamping plate 1, and the connection position of the second back connecting portion and the first middle clamping plate 1 is adjustable, thereby enabling adjustment of the length of the first clamping plate assembly. The second back side panel 6 has a receiving slot for accommodating the first inner panel. The second back connecting portion is provided with side slot buckles. There are multiple side slot buckles, all arranged in two rows on the second back connecting portion, and the side slot buckles in the two rows are symmetrically arranged. All side slot buckles in the same row are arranged sequentially along the length of the second back connecting portion. The two rows of side slot buckles respectively engage with two side runners on the first inner panel, and the side slot buckles and side runners serve as guides. The side slot buckles and the length indication slot are provided on the same side wall of the second back connecting portion. The side slot buckles extend toward the inside of the side wall, that is, the side slot buckles extend into the receiving slot. The side slot buckles on the second back connecting portion are rectangular block-shaped structures. The second back connecting portion is provided with a length indication slot. There are multiple length indication slots, and the multiple length indication slots are arranged sequentially along the length of the second back connecting portion. The length reminder groove is a groove that is set on the side wall of the second dorsal connecting part along the thickness direction of the side wall. There are multiple length reminder grooves. All length reminder grooves are arranged in two rows on the second dorsal connecting part and the length reminder grooves in the two rows are arranged symmetrically. All length reminder grooves in the same row are arranged in sequence along the length direction of the second dorsal connecting part.

[0044] like Figure 3 As shown, the third dorsal connecting portion 7 is connected to the first middle section splint 1, and the connection position of the third dorsal connecting portion 7 and the first middle section splint 1 is adjustable, thereby enabling adjustment of the length of the first splint assembly. The third dorsal panel has a receiving groove for accommodating the first inner panel. The third dorsal connecting portion 7 is provided with side groove buckles. There are multiple side groove buckles, all of which are arranged in two rows on the third dorsal connecting portion 7, and the side groove buckles in the two rows are arranged symmetrically. All side groove buckles in the same row are arranged sequentially along the length direction of the third dorsal connecting portion 7. The two rows of side groove buckles are respectively embedded in the two side slide grooves on the first inner panel. The side groove buckles and the side slide grooves serve as guides. The side groove buckles and the length indication groove are provided on the same side wall of the third dorsal connecting portion 7. The side groove buckles extend toward the inner side of the side wall, that is, the side groove buckles extend into the receiving groove. The side groove buckles on the third dorsal connecting portion 7 are rectangular block structures. The third dorsal connecting portion 7 is provided with a plurality of length indication grooves, which are sequentially arranged along the length direction of the third dorsal connecting portion 7. The length indication grooves are grooves extending through the sidewall of the third dorsal connecting portion 7 along the thickness direction of the sidewall. There are multiple length indication grooves, all of which are arranged in two symmetrical rows on the third dorsal connecting portion 7. All length indication grooves in the same row are sequentially arranged along the length direction of the third dorsal connecting portion 7.

[0045] like Figure 4As shown, the fourth back connecting portion is connected to the first middle clamping plate 1, and the connection position of the fourth back connecting portion and the first middle clamping plate 1 is adjustable, thereby enabling adjustment of the length of the first clamping plate assembly. The fourth back panel 9 has a receiving slot for accommodating the first inner panel. The fourth back connecting portion is provided with side slot buckles. Multiple side slot buckles are arranged in two rows on the fourth back connecting portion, and the side slot buckles in the two rows are symmetrically arranged. All side slot buckles in the same row are arranged sequentially along the length of the fourth back connecting portion. The two rows of side slot buckles respectively engage with the two side runners on the first inner panel, and the side slot buckles and the side runners serve as guides. The side slot buckles and the length indication slot are located on the same side wall of the fourth back connecting portion. The side slot buckles extend toward the inside of the side wall, that is, the side slot buckles extend into the receiving slot. The side slot buckles on the fourth back connecting portion are rectangular block-shaped structures. The fourth back connecting portion is provided with a length indication slot. Multiple length indication slots are provided, and the multiple length indication slots are arranged sequentially along the length of the fourth back connecting portion. The length reminder groove is a groove that is set on the side wall of the fourth dorsal connecting part along the thickness direction of the side wall. There are multiple length reminder grooves. All length reminder grooves are arranged in two rows on the fourth dorsal connecting part, and the length reminder grooves in the two rows are arranged symmetrically. All length reminder grooves in the same row are arranged in sequence along the length direction of the fourth dorsal connecting part.

[0046] like Figure 5 As shown, the fifth dorsal connecting portion 10 is connected to the first middle splint 1, and the connection position of the fifth dorsal connecting portion 10 and the first middle splint 1 is adjustable, thereby enabling adjustment of the length of the first splint assembly. The fifth dorsal panel has a receiving slot for accommodating the first inner panel. The fifth dorsal connecting portion 10 is provided with side slot buckles. Multiple side slot buckles are provided, all arranged in two rows on the fifth dorsal connecting portion 10, and the side slot buckles in the two rows are arranged symmetrically. All side slot buckles in the same row are arranged sequentially along the length of the fifth dorsal connecting portion 10. The two rows of side slot buckles respectively engage with the two side slide grooves on the first inner panel, and the side slot buckles and side slide grooves serve as guides. The side slot buckles and the length indication slot are provided on the same side wall of the fifth dorsal connecting portion 10. The side slot buckles extend toward the inner side of the side wall, that is, the side slot buckles extend into the receiving slot. The side slot buckles on the fifth dorsal connecting portion 10 are rectangular block structures. The fifth dorsal connecting portion 10 is provided with a plurality of length indication grooves, which are arranged sequentially along the length direction of the fifth dorsal connecting portion 10. The length indication grooves are grooves extending through the sidewall of the fifth dorsal connecting portion 10 along the thickness direction of the sidewall. There are multiple length indication grooves, all of which are arranged in two symmetrical rows on the fifth dorsal connecting portion 10. All length indication grooves in the same row are arranged sequentially along the length direction of the fifth dorsal connecting portion 10.

[0047] like Figure 6As shown, the first proximal section splint 29 is provided with a plurality of length indication slots, which are arranged sequentially along the length of the first proximal section splint 29. The length indication slots are grooves extending through the sidewall of the first proximal section splint 29 along its thickness. Multiple length indication slots are provided, and all length indication slots in the same row are arranged sequentially along the length of the first proximal section splint 29. The first proximal section splint 29 is also provided with a plurality of side groove buckles, which are arranged in two symmetrical rows along the first proximal section splint 29. The two rows of side groove buckles on the first proximal section splint 29 respectively engage with the two side runners on the first inner panel. The side groove buckles and the side runners serve as guides, and the side groove buckles are rectangular block structures.

[0048] like Figure 7As shown, the first middle section splint 1 is provided with a first slider and a second slider. The first slider is inserted into the length indication slot on the first dorsal connecting portion 4 (or the second dorsal connecting portion, the third dorsal connecting portion 7, or the fourth dorsal connecting portion), and the second slider is inserted into the length indication slot on the first proximal section splint 29. The first dorsal connecting portion 4 (or the second dorsal connecting portion, the third dorsal connecting portion 7, or the fourth dorsal connecting portion) and the first proximal section splint 29 are detachably connected to the first middle section splint 1, and the slider can be pulled out of the length indication slot. Two first sliders are provided, and the two first sliders are located on the same straight line perpendicular to the width direction of the first middle section splint 1. The two first sliders are respectively used to be inserted into the length indication grooves on the two first back side panels (or the second back side connecting portion, the third back side connecting portion 7, and the fourth back side connecting portion). The two length indication grooves are located on the same straight line parallel to the width direction of the first near section splint 29, so as to realize the connection between the first back side panel (or the second back side connecting portion, the third back side connecting portion 7, and the fourth back side connecting portion) and the first middle section splint 1. Two second sliders are provided, and the two second sliders are located on the same straight line perpendicular to the width direction of the first middle section splint 1. The two second sliders are respectively used to be inserted into the two length indication grooves on the first near section splint 29, so as to realize the connection between the first near section splint 29 and the first middle section splint 1. The first and second sliders are respectively disposed at opposite ends of the lengthwise direction of the first middle section splint 1. The lengthwise direction of the first middle section splint 1 is parallel to the lengthwise direction of the first proximal section splint 29 and the first dorsal connecting portion 4. The first middle section splint 1 has a U-shaped cross-section. Two first sliders are disposed on the first middle section splint 1, and the two first sliders extend toward the inside of the first middle section splint 1. Two second sliders are disposed on the first middle section splint 1, and the two second sliders extend toward the inside of the first middle section splint 1. Each first slider and a second slider are disposed on the same side wall of the first middle section splint 1.

[0049] After the two first sliders are inserted into the two length reminder grooves at different positions in the length direction of the first proximal section splint 29, or after the two second sliders are inserted into the two length reminder grooves at different positions in the length direction of the first dorsal connection part 4 (or the second dorsal connection part, the third dorsal connection part 7, the fourth dorsal connection part), the length of the first splint assembly can be adjusted, and the length of the first splint assembly can also be fixed. The first proximal section splint 29 and the first dorsal connection part 4 (or the second dorsal connection part, the third dorsal connection part 7, the fourth dorsal connection part) and the first middle section splint 1 can no longer move relative to each other. When the length of the first splint assembly needs to be adjusted, the two first sliders or the second sliders are pulled outward to loosen the first slider or the second slider (the two first sliders and the second slider can also be pulled outward at the same time to loosen the first slider and the second slider), and then the first slider or the second slider is pulled out of the length prompting slot, and then the near-section splint or the first dorsal connecting part 4 (or the second dorsal connecting part, the third dorsal connecting part 7, the fourth dorsal connecting part) can be separated from the middle section splint. After changing the connection position of the near-section splint or the first dorsal connecting part 4 (or the second dorsal connecting part, the third dorsal connecting part 7, the fourth dorsal connecting part) and the middle section splint, the first splint assembly is adjusted to a suitable length, and then the two first sliders or the two second sliders are embedded in the length prompting slots to achieve relative fixation of the near-section splint or the first dorsal plate (or the second dorsal connecting part, the third dorsal connecting part 7, the fourth dorsal connecting part) and the middle section splint. This structure is convenient for adjusting the length of the small traditional Chinese medicine splint component, has a simple structure and is easy to operate.

[0050] The first radial connecting portion 12 is detachably connected to the second middle section splint 2, the second radial connecting portion 14 is detachably connected to the second middle section splint 2, the third radial connecting portion 16 is detachably connected to the second middle section splint 2, the fourth radial connecting portion 18 is detachably connected to the second middle section splint 2, and the fifth radial connecting portion 20 is detachably connected to the second middle section splint 2, which facilitates the replacement of the radial splint.

[0051] like Figure 1As shown, the first radial connecting portion 12 is connected to the second middle splint 2, and the connection position of the first radial connecting portion 12 and the second middle splint 2 is adjustable. The second proximal splint 30 is connected to the second middle splint 2, and the connection position of the second proximal splint 30 and the second middle splint 2 is adjustable, thereby enabling the length of the second splint assembly to be adjusted, thereby adapting to the external fixation treatment needs of different patients with varying arm lengths. The first radial plate has a accommodating groove for accommodating the second inner panel. The first radial connecting portion 12 is provided with a side groove buckle, and the second inner panel has a side slide groove for the side groove buckle to be inserted. There are multiple side groove buckles, all of which are arranged in two rows on the first radial connecting portion 12, and the two rows of side groove buckles are arranged symmetrically. All side groove buckles in the same row are arranged sequentially along the length direction of the first radial connecting portion 12. The second inner panel is provided with two side slide grooves, and the two rows of side groove buckles are respectively inserted into the two side slide grooves on the second inner panel. The side groove buckles and the side slide grooves serve as guides. The side groove buckle and the length indication slot are located on the same side wall of the first radial connecting portion 12. The side groove buckle extends inward from this side wall, that is, it extends into the receiving slot. The side groove is a groove provided on the outer wall of the second inner panel, extending along the entire length of the second inner panel. Two side grooves are provided on opposite outer walls of the second inner panel. The side groove buckle on the first radial connecting portion 12 is a rectangular block-shaped structure. The first radial connecting portion 12 is provided with a length indication slot. Multiple length indication slots are provided, and the multiple length indication slots are arranged sequentially along the length of the first radial connecting portion 12. The length indication slots are grooves provided through the side wall of the first radial connecting portion 12 along the thickness of the side wall. Multiple length indication slots are provided, and all length indication slots are arranged in two symmetrical rows on the first radial connecting portion 12. All length indication slots in the same row are arranged sequentially along the length of the first radial connecting portion 12.

[0052] like Figure 2As shown, the second radial connecting portion 14 is connected to the second middle splint 2, and the connection position of the second radial connecting portion 14 and the second middle splint 2 is adjustable, thereby enabling adjustment of the length of the second splint assembly. The second radial plate has a receiving slot for accommodating the second inner panel. The second radial connecting portion 14 is provided with side slot buckles. Multiple side slot buckles are provided. All side slot buckles are arranged in two rows on the second radial connecting portion 14, and the side slot buckles in the two rows are arranged symmetrically. All side slot buckles in the same row are arranged sequentially along the length of the second radial connecting portion 14. The two rows of side slot buckles respectively engage with two side slide grooves on the second inner panel, and the side slot buckles and side slide grooves serve as guides. The side slot buckles and the length indication slot are provided on the same side wall of the second radial connecting portion 14. The side slot buckles extend toward the inner side of the side wall, that is, the side slot buckles extend into the receiving slot. The side slot buckles on the second radial connecting portion 14 are rectangular block structures. The second radial connecting portion 14 is provided with a plurality of length indication grooves, which are sequentially arranged along the length direction of the second radial connecting portion 14. The length indication grooves are grooves extending through the sidewall of the second radial connecting portion 14 along the thickness direction of the sidewall. There are multiple length indication grooves, which are arranged in two symmetrical rows on the second radial connecting portion 14. All length indication grooves in the same row are sequentially arranged along the length direction of the second radial connecting portion 14.

[0053] like Figure 3 As shown, the third radial connection portion 16 is connected to the second middle splint 2, and the connection position of the third radial connection portion 16 and the second middle splint 2 is adjustable, thereby enabling adjustment of the length of the second splint assembly. The third radial plate has a receiving slot for accommodating the second inner panel. The third radial connection portion 16 is provided with a plurality of side slot buckles, all of which are arranged in two rows on the third radial connection portion 16, and the side slot buckles in the two rows are arranged symmetrically. All side slot buckles in the same row are arranged sequentially along the length of the third radial connection portion 16. The two rows of side slot buckles respectively engage with two side slide grooves on the second inner panel, and the side slot buckles and side slide grooves serve as guides. The side slot buckles and the length indication slot are provided on the same side wall of the third radial connection portion 16, and the side slot buckles extend toward the inner side of the side wall, that is, the side slot buckles extend into the receiving slot. The side slot buckles on the third radial connection portion 16 are rectangular block structures. The third radial connecting portion 16 is provided with a plurality of length indication grooves, which are sequentially arranged along the length direction of the third radial connecting portion 16. The length indication grooves are grooves extending through the sidewall of the third radial connecting portion 16 along the thickness direction of the sidewall. Multiple length indication grooves are provided, and all length indication grooves are arranged in two symmetrical rows on the third radial connecting portion 16. All length indication grooves in the same row are sequentially arranged along the length direction of the third radial connecting portion 16.

[0054] like Figure 4 As shown, the fourth radial connecting portion 18 is connected to the second middle splint 2, and the connection position of the fourth radial connecting portion 18 to the second middle splint 2 is adjustable, thereby enabling adjustment of the length of the second splint assembly. The fourth radial plate has a receiving slot for accommodating the second inner panel. The fourth radial connecting portion 18 is provided with a plurality of side slot buckles, all of which are arranged in two rows on the fourth radial connecting portion 18, and the side slot buckles in the two rows are arranged symmetrically. All side slot buckles in the same row are arranged sequentially along the length of the fourth radial connecting portion 18. The two rows of side slot buckles respectively engage with two side slide grooves on the second inner panel, and the side slot buckles and side slide grooves serve as guides. The side slot buckles and the length indication slot are provided on the same side wall of the fourth radial connecting portion 18, and the side slot buckles extend toward the inner side of the side wall, that is, the side slot buckles extend into the receiving slot. The side slot buckles on the fourth radial connecting portion 18 are rectangular block structures. The fourth radial connecting portion 18 is provided with a length indication groove. Multiple length indication grooves are provided and are arranged sequentially along the length direction of the fourth radial connecting portion 18. The length indication groove is a groove provided on the side wall of the fourth radial connecting portion 18 along the thickness direction of the side wall. Multiple length indication grooves are provided, and all length indication grooves are arranged in two rows on the fourth radial connecting portion 18. The length indication grooves of the two rows are arranged symmetrically. All length indication grooves in the same row are arranged sequentially along the length direction of the fourth radial connecting portion 18.

[0055] like Figure 5 As shown, the fifth radial connecting portion 20 is connected to the second middle splint 2, and the connection position of the fifth radial connecting portion 20 and the second middle splint 2 is adjustable, thereby enabling adjustment of the length of the second splint assembly. The fifth radial plate has a receiving slot for accommodating the second inner panel. The fifth radial connecting portion 20 is provided with a plurality of side slot buckles. All side slot buckles are arranged in two rows on the fifth radial connecting portion 20, and the side slot buckles in the two rows are arranged symmetrically. All side slot buckles in the same row are arranged sequentially along the length of the fifth radial connecting portion 20. The two rows of side slot buckles respectively engage with two side slide grooves on the second inner panel, and the side slot buckles and side slide grooves serve as guides. The side slot buckles and the length indication groove are provided on the same side wall of the fifth radial connecting portion 20. The side slot buckles extend toward the inner side of the side wall, that is, the side slot buckles extend into the receiving slot. The side slot buckles on the fifth radial connecting portion 20 are rectangular block structures. The fifth radial connecting portion 20 is provided with a length indication groove. Multiple length indication grooves are provided and are arranged sequentially along the length direction of the fifth radial connecting portion 20. The length indication groove is a groove provided on the side wall of the fifth radial connecting portion 20 along the thickness direction of the side wall. Multiple length indication grooves are provided, and all length indication grooves are arranged in two rows on the fifth radial connecting portion 20. The length indication grooves of the two rows are arranged symmetrically. All length indication grooves in the same row are arranged sequentially along the length direction of the fifth radial connecting portion 20.

[0056] like Figure 6 As shown, the second proximal section splint 30 is provided with a length indication groove. There are multiple length indication grooves, and the multiple length indication grooves are arranged sequentially along the length direction of the second proximal section splint 30. The length indication grooves are grooves that extend through the side wall of the second proximal section splint 30 along the thickness direction of the side wall. There are multiple length indication grooves, and all length indication grooves are arranged in two rows on the second proximal section splint 30, and the length indication grooves in the two rows are arranged symmetrically. All length indication grooves in the same row are arranged sequentially along the length direction of the second proximal section splint 30. The second proximal section splint 30 is also provided with side groove buckles. There are multiple side groove buckles, and all side groove buckles are arranged in two rows on the second proximal section splint 30, and the side groove buckles in the two rows are arranged symmetrically. All side groove buckles in the same row are arranged sequentially along the length direction of the second proximal section splint 30. The two rows of side groove buckles on the second proximal section splint 30 respectively engage with the two side runners on the second inner panel. The side groove buckles and the side runners serve as guides. The side groove buckles are rectangular block structures.

[0057] like Figure 7As shown, a first sliding buckle and a second sliding buckle are provided on the second middle section splint 2. The first sliding buckle is inserted into the length indication slot on the first radial connection portion 12 (or the second radial connection portion 14, the third radial connection portion 16, or the fourth radial connection portion 18), and the second sliding buckle is inserted into the length indication slot on the second proximal section splint 30. The first radial connection portion 12 (or the second radial connection portion 14, the third radial connection portion 16, or the fourth radial connection portion 18) and the second proximal section splint 30 are detachably connected to the second middle section splint 2, and the sliding buckle can be pulled out of the length indication slot. Two first sliders are provided, and the two first sliders are located on the same straight line perpendicular to the width direction of the second middle section splint 2. The two first sliders are respectively used to be inserted into the length indication grooves on the two first radial plates (or the second radial connecting portion 14, the third radial connecting portion 16, and the fourth radial connecting portion 18). The two length indication grooves are located on the same straight line parallel to the width direction of the second proximal section splint 30, so as to achieve the connection between the first radial plate (or the second radial connecting portion 14, the third radial connecting portion 16, and the fourth radial connecting portion 18) and the second middle section splint 2. Two second sliders are provided, and the two second sliders are located on the same straight line perpendicular to the width direction of the second middle section splint 2. The two second sliders are respectively used to be inserted into the two length indication grooves on the second proximal section splint 30, so as to achieve the connection between the second proximal section splint 30 and the second middle section splint 2. The first slider and the second slider are respectively arranged at opposite ends of the length direction of the second middle section splint 2. The length direction of the second middle section splint 2 is parallel to the length direction of the second proximal section splint 30 and the first radial connecting portion 12. The second middle section splint 2 has a U-shaped cross-section. Two first sliders are arranged on the second middle section splint 2, and the two first sliders extend toward the inner side of the second middle section splint 2. Two second sliders are arranged on the second middle section splint 2, and the two second sliders extend toward the inner side of the second middle section splint 2. Each first slider and a second slider are respectively arranged on the same side wall of the second middle section splint 2.

[0058] After the two first sliders are inserted into the two length reminder grooves at different positions in the length direction of the second proximal section splint 30, or after the two second sliders are inserted into the two length reminder grooves at different positions in the length direction of the first radial connection part 12 (or the second radial connection part 14, the third radial connection part 16, the fourth radial connection part 18), the length of the second splint assembly can be adjusted, and the length of the second splint assembly can also be fixed. The second proximal section splint 30 and the first radial connection part 12 (or the second radial connection part 14, the third radial connection part 16, the fourth radial connection part 18) and the second middle section splint 2 can no longer move relative to each other. When the length of the second splint assembly needs to be adjusted, the two first sliders or the second sliders are pulled outward to loosen the first sliders or the second sliders (or the two first sliders and the second sliders are pulled outward at the same time to loosen both the first sliders and the second sliders), and then the first sliders or the second sliders are pulled out of the length prompt slot, and then the proximal splint or the first radial connecting portion 12 (or the second radial connecting portion 14, the third radial connecting portion 16, the fourth radial connecting portion 18) can be separated from the middle splint. After the proximal section splint or the first radial connecting portion 12 (or the second radial connecting portion 14, the third radial connecting portion 16, the fourth radial connecting portion 18) is connected to the middle section splint, the second splint assembly is adjusted to an appropriate length, and then the two first sliding buckles or the two second sliding buckles are embedded in the length prompt groove to achieve relative fixation of the proximal section splint or the first radial plate (or the second radial connecting portion 14, the third radial connecting portion 16, the fourth radial connecting portion 18) and the middle section splint, that is, to achieve the overall length adjustment of the Chinese medicine small splint component. This structure is convenient for adjusting the length of the Chinese medicine small splint component, has a simple structure, and is easy to operate.

[0059] The first palm side connection part is detachably connected to the third middle section splint 3, the second palm side connection part 23 is detachably connected to the third middle section splint 3, the third palm side connection part is detachably connected to the third middle section splint 3, the fourth palm side connection part is detachably connected to the third middle section splint 3, and the fifth palm side connection part 27 is detachably connected to the third middle section splint 3, which is convenient for replacing the palm side splint.

[0060] like Figure 1As shown, the first palmar connecting portion is connected to the third middle splint 3, and the connection position of the first palmar connecting portion and the third middle splint 3 is adjustable. The third proximal splint 31 is connected to the third middle splint 3, and the connection position of the third proximal splint 31 and the third middle splint 3 is adjustable, thereby enabling the length of the third splint assembly to be adjusted, thereby adapting to the external fixation treatment needs of different patients with varying arm lengths. The first palmar plate 22 has a accommodating slot for accommodating the third inner panel. The first palmar connecting portion is provided with side slot buckles, and the third inner panel has side runners for the side slot buckles to fit into. There are multiple side slot buckles, all of which are arranged in two rows on the first palmar connecting portion, and the two rows of side slot buckles are arranged symmetrically. All side slot buckles in the same row are arranged sequentially along the length of the first palmar connecting portion. The third inner panel is provided with two side runners, and the two rows of side slot buckles respectively fit into the two side runners on the third inner panel. The side slot buckles and the side runners serve as guides. The side groove buckle and the length indication groove are arranged on the same side wall of the first palm-side connecting part. The side groove buckle extends toward the inner side of the side wall, that is, the side groove buckle extends into the accommodating groove. The side slide groove is a groove arranged on the outer wall surface of the third inner panel. The side slide groove extends along the entire length direction of the third inner panel. Two side slide grooves are arranged on two opposite outer wall surfaces of the third inner panel. The side groove buckle on the first palm-side connecting part is a rectangular block structure. A length indication groove is arranged on the first palm-side connecting part. There are multiple length indication grooves and the multiple length indication grooves are arranged in sequence along the length direction of the first palm-side connecting part. The length indication groove is a groove that is arranged on the side wall of the first palm-side connecting part along the thickness direction of the side wall. There are multiple length indication grooves. All length indication grooves are arranged in two rows on the first palm-side connecting part, and the length indication grooves in the two rows are symmetrically arranged. All length indication grooves in the same row are arranged in sequence along the length direction of the first palm-side connecting part.

[0061] like Figure 2As shown, the second palmar connecting portion 23 is connected to the third middle splint 3, and the connection position of the second palmar connecting portion 23 and the third middle splint 3 is adjustable, thereby enabling adjustment of the length of the third splint assembly. The second palmar plate has a accommodating slot for accommodating the third inner panel. The second palmar connecting portion 23 is provided with side slot buckles. There are multiple side slot buckles, all of which are arranged in two rows on the second palmar connecting portion 23, and the side slot buckles in the two rows are arranged symmetrically. All side slot buckles in the same row are arranged sequentially along the length direction of the second palmar connecting portion 23. The two rows of side slot buckles are respectively embedded in the two side slide grooves on the third inner panel, and the side slot buckles and side slide grooves serve as guides. The side slot buckles and the length indication slot are provided on the same side wall of the second palmar connecting portion 23. The side slot buckles extend toward the inner side of the side wall, that is, the side slot buckles extend into the accommodating slot. The side slot buckles on the second palmar connecting portion 23 are rectangular block structures. The second palm-side connecting portion 23 is provided with a plurality of length indication grooves, which are arranged sequentially along the length direction of the second palm-side connecting portion 23. The length indication grooves are grooves extending through the sidewall of the second palm-side connecting portion 23 along the thickness direction of the sidewall. There are multiple length indication grooves, which are arranged in two symmetrical rows on the second palm-side connecting portion 23. All length indication grooves in the same row are arranged sequentially along the length direction of the second palm-side connecting portion 23.

[0062] like Figure 3 As shown, the third palmar connecting portion is connected to the third middle splint 3, and the connection position between the third palmar connecting portion and the third middle splint 3 is adjustable, thereby enabling adjustment of the length of the third splint assembly. The third palmar plate 25 has a receiving slot for accommodating the third inner panel. The third palmar connecting portion is provided with a plurality of side slot buckles, all of which are arranged in two rows on the third palmar connecting portion, and the side slot buckles in the two rows are arranged symmetrically. All side slot buckles in the same row are arranged sequentially along the length of the third palmar connecting portion. The two rows of side slot buckles respectively engage with two side slide grooves on the third inner panel, and the side slot buckles and side slide grooves serve as guides. The side slot buckles and the length indication slot are provided on the same side wall of the third palmar connecting portion, and the side slot buckles extend toward the inside of the side wall, that is, the side slot buckles extend into the receiving slot. The side slot buckles on the third palmar connecting portion are rectangular block-shaped structures. The third palmar connecting portion is provided with a plurality of length indication slots, and the plurality of length indication slots are arranged sequentially along the length of the third palmar connecting portion. The length reminder groove is a groove that is set on the side wall of the third palm side connecting part along the thickness direction of the side wall. There are multiple length reminder grooves. All length reminder grooves are arranged in two rows on the third palm side connecting part, and the length reminder grooves in the two rows are arranged symmetrically. All length reminder grooves in the same row are arranged in sequence along the length direction of the third palm side connecting part.

[0063] like Figure 4As shown, the fourth palmar connecting portion is connected to the third middle splint 3, and the connection position between the fourth palmar connecting portion and the third middle splint 3 is adjustable, thereby enabling adjustment of the length of the third splint assembly. The fourth palmar plate 26 has a receiving slot for accommodating the third inner panel. The fourth palmar connecting portion is provided with a plurality of side slot buckles, all of which are arranged in two rows on the fourth palmar connecting portion, and the side slot buckles in the two rows are symmetrically arranged. All side slot buckles in the same row are arranged sequentially along the length of the fourth palmar connecting portion. The two rows of side slot buckles respectively engage with two side slide grooves on the third inner panel, and the side slot buckles and side slide grooves serve as guides. The side slot buckles and the length indication slot are provided on the same side wall of the fourth palmar connecting portion, extending toward the inside of the side wall, that is, the side slot buckles extend into the receiving slot. The side slot buckles on the fourth palmar connecting portion are rectangular block-shaped structures. The fourth palmar connecting portion is provided with a plurality of length indication slots, and the plurality of length indication slots are arranged sequentially along the length of the fourth palmar connecting portion. The length reminder groove is a groove that is set on the side wall of the fourth palm side connecting part along the thickness direction of the side wall. There are multiple length reminder grooves. All length reminder grooves are arranged in two rows on the fourth palm side connecting part, and the length reminder grooves in the two rows are arranged symmetrically. All length reminder grooves in the same row are arranged in sequence along the length direction of the fourth palm side connecting part.

[0064] like Figure 5 As shown, the fifth palmar connecting portion 27 is connected to the third middle splint 3, and the connection position of the fifth palmar connecting portion 27 and the third middle splint 3 is adjustable, thereby enabling adjustment of the length of the third splint assembly. The fifth palmar plate has a receiving slot for accommodating the third inner panel. The fifth palmar connecting portion 27 is provided with a plurality of side slot buckles, all of which are arranged in two rows on the fifth palmar connecting portion 27, and the side slot buckles in the two rows are arranged symmetrically. All side slot buckles in the same row are arranged sequentially along the length of the fifth palmar connecting portion 27. The two rows of side slot buckles respectively engage with the two side slide grooves on the third inner panel, and the side slot buckles and side slide grooves serve as guides. The side slot buckles and the length indication slot are provided on the same side wall of the fifth palmar connecting portion 27, and the side slot buckles extend toward the inner side of the side wall, that is, the side slot buckles extend into the receiving slot. The side slot buckles on the fifth palmar connecting portion 27 are rectangular block structures. The fifth palmar connecting portion 27 is provided with a plurality of length indication grooves, which are arranged sequentially along the length direction of the fifth palmar connecting portion 27. The length indication grooves are grooves extending through the sidewall of the fifth palmar connecting portion 27 along the thickness direction of the sidewall. There are multiple length indication grooves, all of which are arranged in two symmetrical rows on the fifth palmar connecting portion 27. All length indication grooves in the same row are arranged sequentially along the length direction of the fifth palmar connecting portion 27.

[0065] like Figure 6As shown, the third proximal section splint 31 is provided with a plurality of length indication slots, which are arranged sequentially along the length of the third proximal section splint 31. The length indication slots are grooves extending through the sidewall of the third proximal section splint 31 along its thickness. Multiple length indication slots are arranged in two symmetrical rows on the third proximal section splint 31, and all length indication slots in the same row are arranged sequentially along the length of the third proximal section splint 31. The third proximal section splint 31 is also provided with a plurality of side groove buckles, which are arranged in two symmetrical rows on the third proximal section splint 31, and all side groove buckles in the same row are arranged sequentially along the length of the third proximal section splint 31. The two rows of side groove buckles on the third proximal section splint 31 respectively engage with the two side runners on the third inner panel. The side groove buckles and the side runners serve as guides, and the side groove buckles are rectangular block structures.

[0066] like Figure 7As shown, the third middle section splint 3 is provided with a first slider and a second slider. The first slider is inserted into the length indication slot on the first palmar connecting portion (or the second palmar connecting portion 23, the third palmar connecting portion, or the fourth palmar connecting portion), and the second slider is inserted into the length indication slot on the third proximal section splint 31. The first palmar connecting portion (or the second palmar connecting portion 23, the third palmar connecting portion, or the fourth palmar connecting portion) and the third proximal section splint 31 are detachably connected to the third middle section splint 3, and the slider can be pulled out of the length indication slot. Two first sliders are provided, and the two first sliders are located on the same straight line perpendicular to the width direction of the third middle section splint 3. The two first sliders are respectively used to be inserted into the length indication grooves on the two first palmar plates 22 (or the second palmar connecting portion 23, the third palmar connecting portion, and the fourth palmar connecting portion). The two length indication grooves are located on the same straight line parallel to the width direction of the third proximal section splint 31, so as to realize the connection between the first palmar plate 22 (or the second palmar connecting portion 23, the third palmar connecting portion, and the fourth palmar connecting portion) and the third middle section splint 3. Two second sliders are provided, and the two second sliders are located on the same straight line perpendicular to the width direction of the third middle section splint 3. The two second sliders are respectively used to be inserted into the two length indication grooves on the third proximal section splint 31, so as to realize the connection between the third proximal section splint 31 and the third middle section splint 3. The first slider and the second slider are respectively arranged at opposite ends of the length direction of the third middle section splint 3. The length direction of the third middle section splint 3 is parallel to the length direction of the third proximal section splint 31 and the first palm-side connecting portion. The third middle section splint 3 has a U-shaped cross-section. Two first sliders are arranged on the third middle section splint 3, and the two first sliders extend toward the inner side of the third middle section splint 3. Two second sliders are arranged on the third middle section splint 3, and the two second sliders extend toward the inner side of the third middle section splint 3. Each first slider and a second slider are arranged on the same side wall of the third middle section splint 3.

[0067] After the two first sliders are inserted into the two length reminder grooves at different positions in the length direction of the third proximal section splint 31, or after the two second sliders are inserted into the two length reminder grooves at different positions in the length direction of the first palm side connection part (or the second palm side connection part 23, the third palm side connection part, the fourth palm side connection part), the length of the third splint assembly can be adjusted, and the length of the third splint assembly can also be fixed. The third proximal section splint 31 and the first palm side connection part (or the second palm side connection part 23, the third palm side connection part, the fourth palm side connection part) and the third middle section splint 3 can no longer move relative to each other. When the length of the third splint assembly needs to be adjusted, the two first sliders or the second sliders are pulled outward to loosen the first slider or the second slider (or the two first sliders and the second slider are pulled outward at the same time to loosen both the first slider and the second slider), and then the first slider or the second slider is pulled out of the length prompt slot, and then the proximal splint or the first palm side connection part (or the second palm side connection part 23, the third palm side connection part, the fourth palm side connection part) can be separated from the middle splint. After changing the connection position of the proximal splint or the first palm side connection part (or the second palm side connection part 23, the third palm side connection part, the fourth palm side connection part) and the middle splint, the third splint assembly is adjusted to a suitable length, and then the two first sliders or the two second sliders are embedded in the length prompt slots to achieve relative fixation of the proximal splint or the first palm side plate 22 (or the second palm side connection part 23, the third palm side connection part, the fourth palm side connection part) and the middle splint, that is, to achieve the overall length adjustment of the Chinese medicine small splint component. This structure is convenient for adjusting the length of the small traditional Chinese medicine splint component, has a simple structure and is easy to operate.

[0068] The ulnar splint is connected to the fourth middle section splint, and the connection position of the ulnar splint and the fourth middle section splint is adjustable. The fourth proximal splint is connected to the fourth middle section splint, and the connection position of the fourth proximal splint and the fourth middle section splint is adjustable, so that the length of the fourth splint assembly can be adjusted, so as to adapt to the external fixation treatment needs of different patients with different arm lengths. The ulnar splint has a accommodating groove for accommodating the fourth inner panel. The ulnar splint is provided with a side groove buckle. The fourth inner panel has a side slide groove for the side groove buckle to be embedded. There are multiple side groove buckles. All side groove buckles are arranged in two rows on the ulnar splint, and the side groove buckles of the two rows are symmetrically arranged. All side groove buckles in the same row are arranged in sequence along the length direction of the ulnar splint. Two side slide grooves are provided on the fourth inner panel. The two rows of side groove buckles are respectively embedded in the two side slide grooves on the fourth inner panel. The side groove buckles and the side slide grooves play a guiding role. The side groove buckle and the length reminder groove are set on the same side wall of the ulnar side splint. The side groove buckle extends toward the inner side of the side wall, that is, the side groove buckle extends into the accommodating groove. The side slide groove is a groove set on the outer wall surface of the fourth inner panel. The side slide groove extends along the entire length direction of the fourth inner panel. Two side slide grooves are set on the two opposite outer wall surfaces of the fourth inner panel. The side groove buckle on the ulnar side splint is a rectangular block structure. A length reminder groove is set on the ulnar side splint. There are multiple length reminder grooves and the multiple length reminder grooves are arranged in sequence along the length direction of the ulnar side splint. The length reminder groove is a groove that is set on the side wall of the ulnar side splint along the thickness direction of the side wall. There are multiple length reminder grooves. All length reminder grooves are arranged in two rows on the ulnar side splint and the length reminder grooves of the two rows are symmetrically arranged. All length reminder grooves in the same row are arranged in sequence along the length direction of the ulnar side splint.

[0069] A length reminder groove is provided on the fourth proximal section splint. There are multiple length reminder grooves and the multiple length reminder grooves are arranged in sequence along the length direction of the fourth proximal section splint. The length reminder groove is a groove that is provided on the side wall of the fourth proximal section splint along the thickness direction of the side wall. There are multiple length reminder grooves. All length reminder grooves are arranged in two rows on the fourth proximal section splint and the length reminder grooves of the two rows are arranged symmetrically. All length reminder grooves in the same row are arranged in sequence along the length direction of the fourth proximal section splint. Side groove buckles are also provided on the fourth proximal section splint. There are multiple side groove buckles. All side groove buckles are arranged in two rows on the fourth proximal section splint and the side groove buckles of the two rows are arranged symmetrically. All side groove buckles in the same row are arranged in sequence along the length direction of the fourth proximal section splint. The two rows of side groove buckles on the fourth proximal section splint are respectively embedded in the two side slide grooves on the fourth inner panel. The side groove buckles and the side slide grooves play a guiding role. The side groove buckles are rectangular block structures.

[0070] The fourth middle section plywood is provided with a first slider and a second slider. The first slider engages with a length indication slot on the ulnar section plywood, and the second slider engages with a length indication slot on the fourth proximal section plywood. The ulnar section plywood and the fourth proximal section plywood are detachably connected to the fourth middle section plywood, and the sliders can be withdrawn from the length indication slots. Two first sliders are provided, and the two first sliders are located in a straight line perpendicular to the width direction of the fourth middle section plywood. The two first sliders are respectively configured to be inserted into the length indication slots on the two ulnar section plywood. The two length indication slots are located in a straight line parallel to the width direction of the fourth proximal section plywood, thereby connecting the ulnar section plywood to the fourth middle section plywood. Two second sliders are provided, and the two second sliders are located in a straight line perpendicular to the width direction of the fourth middle section plywood. The two second sliders are respectively configured to be inserted into the two length indication slots on the fourth proximal section plywood. The two length indication slots are located in a straight line parallel to the width direction of the fourth proximal section plywood, thereby connecting the fourth proximal section plywood to the fourth middle section plywood. The first and second sliders are respectively disposed at opposite ends of the fourth middle section splint in the longitudinal direction. The longitudinal direction of the fourth middle section splint is parallel to the longitudinal directions of the fourth proximal section splint and the ulnar section splint. The fourth middle section splint has a U-shaped cross-section. Two first sliders are disposed on the fourth middle section splint, and the two first sliders extend toward the inner side of the fourth middle section splint. Two second sliders are disposed on the fourth middle section splint, and the two second sliders extend toward the inner side of the fourth middle section splint. Each first slider and one second slider are disposed on the same side wall of the fourth middle section splint.

[0071] After the two first slide buckles are inserted into the two length prompt grooves at different positions in the length direction of the fourth proximal section splint, or after the two second slide buckles are inserted into the two length prompt grooves at different positions in the length direction of the ulnar side splint, the length of the fourth splint assembly can be adjusted, and the length of the fourth splint assembly can also be fixed. The fourth proximal section splint, the ulnar side splint and the fourth middle section splint can no longer move relative to each other. When the length of the fourth splint assembly needs to be adjusted, the two first sliders or the second sliders are pulled outward to loosen the first slider or the second slider (the two first sliders and the second slider can also be pulled outward at the same time to loosen the first slider and the second slider), and then the first slider or the second slider is pulled out of the length prompt slot, and then the proximal section splint or the ulnar side splint can be separated from the middle section splint. After changing the connection position of the proximal section splint or the ulnar side splint and the middle section splint, the fourth splint assembly is adjusted to a suitable length, and then the two first sliders or the two second sliders are embedded in the length prompt slot to achieve relative fixation of the proximal section splint or the ulnar side splint and the middle section splint, that is, to achieve the overall length adjustment of the Chinese medicine small splint component. This structure is convenient for adjusting the length of the Chinese medicine small splint component, has a simple structure, and is easy to operate.

[0072] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any direct application of the above-described concepts and technical solutions to other situations without modification, fall within the scope of protection of the present invention.

Claims

1. A small splint external fixation device for traditional Chinese medicine, comprising a first splint assembly, a second splint assembly, a third splint assembly, and a fourth splint assembly, wherein the first splint assembly comprises a dorsal splint and a first inner panel, the second splint assembly comprises a radial splint and a second inner panel, the third splint assembly comprises a volar splint and a third inner panel, and the fourth splint assembly comprises an ulnar splint and a fourth inner panel, characterized in that: The dorsal splint includes a first dorsal plate used when the wrist joint is in the neutral position, a second dorsal plate used when the wrist joint is in the wrist dorsiflexion position, a third dorsal plate used when the wrist joint is in the wrist flexion position, a fourth dorsal plate used when the wrist joint is in the functional position, and a fifth dorsal plate used when the wrist joint is in the wrist support position; the radial splint includes a first radial plate used when the wrist joint is in the neutral position, a second radial plate used when the wrist joint is in the wrist dorsiflexion position, a third radial plate used when the wrist joint is in the wrist flexion position, a fourth radial plate used when the wrist joint is in the functional position, and a fifth radial plate used when the wrist joint is in the wrist support position; the volar splint includes a first volar plate used when the wrist joint is in the neutral position, a second volar plate used when the wrist joint is in the wrist dorsiflexion position, a third volar plate used when the wrist joint is in the wrist flexion position, a fourth volar plate used when the wrist joint is in the functional position, and a fifth volar plate used when the wrist joint is in the wrist support position; The first splint assembly also includes a first proximal splint and a first middle splint connected to the first proximal splint, the first middle splint is detachably connected to the dorsal splint; the second splint assembly also includes a second proximal splint and a second middle splint connected to the second proximal splint, the second middle splint is detachably connected to the radial splint; the third splint assembly also includes a third proximal splint and a third middle splint connected to the third proximal splint, the third middle splint is detachably connected to the palmar splint; the fourth splint assembly also includes a fourth proximal splint and a fourth middle splint connected to the fourth proximal splint, the fourth middle splint is detachably connected to the ulnar splint; The first dorsal plate includes a first dorsal connecting portion and a first dorsal fixing portion connected to the first dorsal connecting portion and used to keep the wrist joint in a neutral position; the first radial plate includes a first radial connecting portion and a first radial fixing portion connected to the first radial connecting portion; the length of the first volar plate is shorter than the lengths of the first dorsal plate and the first radial plate; The second radial plate includes a second radial connecting portion and a second radial fixing portion connected to the second radial connecting portion; the second volar plate includes a second volar connecting portion and a second volar fixing portion connected to the second volar connecting portion and used to place the wrist joint in a dorsiflexion position; the length of the second dorsal plate is shorter than the lengths of the second volar plate and the second radial plate; The third dorsal plate includes a third dorsal connecting portion and a third dorsal fixing portion connected to the third dorsal connecting portion and used to place the wrist joint in a flexed wrist position; the third radial plate includes a third radial connecting portion and a third radial fixing portion connected to the third radial connecting portion; the length of the third volar plate is shorter than the lengths of the third dorsal plate and the third radial plate; The fourth radial plate includes a fourth radial connecting portion and a fourth radial fixing portion connected to the fourth radial connecting portion. The length of the fourth volar plate is shorter than the lengths of the fourth dorsal plate and the fourth radial plate, and the length of the fourth radial plate is longer than the length of the fourth dorsal plate. The fifth dorsal plate includes a fifth dorsal connecting portion and a fifth dorsal fixing portion connected to the fifth dorsal connecting portion and used to place the wrist joint in a wrist-supporting position; the fifth radial plate includes a fifth radial connecting portion and a fifth radial fixing portion connected to the fifth radial connecting portion; the fifth volar plate includes a fifth volar connecting portion and a fifth volar fixing portion connected to the fifth volar connecting portion and used to place the wrist joint in a wrist-supporting position; the length of the fifth radial plate is smaller than the lengths of the fifth dorsal plate and the fifth volar plate.

2. The Chinese medicine splint external fixation device according to claim 1, characterized in that: The side groove buckle on the first back connecting portion is a rectangular block structure.

3. The Chinese medicine splint external fixation device according to claim 1, characterized in that: A length reminder groove is set on the side wall of the first dorsal connecting part. The length reminder groove is a groove that is set on the side wall of the first dorsal connecting part along the thickness direction of the side wall. There are multiple length reminder grooves. All length reminder grooves are arranged in two rows on the first dorsal connecting part, and the length reminder grooves in the two rows are arranged symmetrically. All length reminder grooves in the same row are arranged in sequence along the length direction of the first dorsal connecting part.

4. The Chinese medicine splint external fixation device according to claim 1, characterized in that: The second back side panel includes a second back side connecting portion, the second back side connecting portion is connected to the first middle section plywood, and the connection position of the second back side connecting portion and the first middle section plywood is adjustable, the second back side panel has a accommodating groove for accommodating the first inner panel, the second back side connecting portion is provided with a side groove buckle, a plurality of side groove buckles are provided, all side groove buckles are arranged in two rows on the second back connecting portion, and the side groove buckles of the two rows are symmetrically arranged, all side groove buckles in the same row are arranged sequentially along the length direction of the second back connecting portion, the two rows of side groove buckles are respectively embedded in the two side slide grooves on the first inner panel, and the side groove buckles and the side slide grooves play a guiding role; A length reminder groove is provided on the second dorsal connecting part, and the side groove buckle and the length reminder groove are provided on the same side wall of the second dorsal connecting part, and the side groove buckle extends toward the inner side of the side wall. A plurality of length reminder grooves are provided and the plurality of length reminder grooves are arranged in sequence along the length direction of the second dorsal connecting part. The length reminder groove is a groove that penetrates the side wall of the second dorsal connecting part along the thickness direction of the side wall. A plurality of length reminder grooves are provided, and all length reminder grooves are arranged in two rows on the second dorsal connecting part and the length reminder grooves of the two rows are symmetrically arranged. All length reminder grooves in the same row are arranged in sequence along the length direction of the second dorsal connecting part.

5. The Chinese medicine splint external fixation device according to claim 1, characterized in that: A length reminder groove is set on the side wall of the third dorsal connecting part. The length reminder groove is a groove that is set on the side wall of the third dorsal connecting part along the thickness direction of the side wall. There are multiple length reminder grooves. All length reminder grooves are arranged in two rows on the third dorsal connecting part, and the length reminder grooves in the two rows are arranged symmetrically. All length reminder grooves in the same row are arranged in sequence along the length direction of the third dorsal connecting part.

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