A non-invasive traction splint

Abstract

The present invention discloses a non-invasive traction splint, comprising: a first splint combination, comprising a first ratchet structure, the first ratchet structure is respectively arranged on the palmar proximal splint and the palmar splint, and the length of the first splint combination is movably adjusted by the first ratchet structure; a second splint combination, comprising a second ratchet structure, the second ratchet structure is respectively arranged on the dorsal proximal splint and the dorsal splint, and the length of the second splint combination is movably adjusted by the second ratchet structure; a plurality of connecting belts, connecting the palmar proximal splint and the dorsal proximal splint, and connecting the palmar splint and the dorsal splint. The non-invasive traction splint of the present invention can exert the function of axial traction through a non-invasive approach, and avoids the problems of secondary injury and high treatment cost caused by surgical treatment, thereby improving the clinical efficacy and the functional recovery level of the affected limb. The technology is simple to operate and low in price, and can be widely promoted and used in primary medical institutions, with certain economic and social benefits.

Description

Technical Field

[0001] The present invention mainly relates to the field of medical devices, and more specifically to a non-invasive traction splint for fixing and treating distal radius fractures. Background Art

[0002] Distal radius fracture refers to cancellous bone fracture located within 2.5 to 3 cm from the radial wrist joint surface. It is very common in orthopedic clinical practice, accounting for about 12.5%-16.7% of emergency orthopedic patients. With the aging of the population, its incidence will further increase. As an important part of the wrist joint, the distal radius will have a serious impact on the activity and function of the wrist joint once a fracture occurs. The treatment of distal radius fractures is divided into two methods: surgical treatment and non-surgical treatment. From the perspective of historical and future development directions, non-surgical treatment is still the mainstream treatment option. This is also the most widely used fracture treatment method in grassroots hospitals and the most acceptable to the general public. It has a good medical economic effect and can meet the needs of the national medical development strategy. We must further improve and carry forward it. However, there are still certain technical difficulties in the closed reduction combined with small splint fixation treatment of distal radius fractures. Especially during the reduction and fixation of fracture ends, there is a considerable proportion of problems such as fracture shortening, re-displacement and malformation healing, which seriously affects the treatment effect of the fracture and the degree of functional recovery of the patient's prognosis. This is also a clinical problem that is difficult to solve in the current external fixation treatment of fractures. Summary of the invention

[0003] It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure as claimed.

[0004] In order to solve the above problems, the present invention provides a device with simple structure, easy disassembly and assembly, good flexibility, and reliable fixation, which has a quantitative controllable traction effect on the wrist joint, and can further prevent radial shortening while promoting bone tissue growth and healing.

[0005] The present invention discloses a non-invasive traction splint, comprising:

[0006] A first splint assembly includes a first ratchet structure, wherein the first ratchet structure is respectively arranged on the palmar proximal splint and the palmar splint, and the length of the first splint assembly is movably adjusted by the first ratchet structure;

[0007] The second splint assembly includes a second ratchet structure, wherein the second ratchet structure is respectively arranged on the dorsal proximal splint and the dorsal splint, and the length of the second splint assembly is movably adjusted by the second ratchet structure;

[0008] A plurality of connecting straps are used to connect the palm side proximal splint and the dorsal side proximal splint, and to connect the palm side splint and the dorsal side splint.

[0009] Preferably, the present invention further discloses a non-invasive traction splint, characterized in that the first ratchet structure further comprises:

[0010] A first group of odontoid processes are arranged on the side of the mounting groove on the palm-side proximal splint;

[0011] A second group of odontoid processes are arranged on the side of the slide groove of the palmar splint;

[0012] The first set of denticles and the second set of denticles cooperate.

[0013] Preferably, the present invention further discloses a non-invasive traction splint, characterized in that the second ratchet structure further comprises:

[0014] A third group of odontoid processes are arranged on the side of the mounting groove of the dorsal proximal splint;

[0015] A fourth group of odontoid processes are arranged on the side of the slide groove of the dorsal splint;

[0016] The third group of denticles cooperates with the fourth group of denticles.

[0017] Preferably, the present invention further discloses a non-invasive traction splint, characterized in that the first splint assembly further comprises a first fixing cover, and the palmar splint is sandwiched between the first fixing cover and the palmar proximal splint;

[0018] The second splint assembly further comprises a second fixing cover, and the dorsal splint is sandwiched between the second fixing cover and the dorsal proximal splint.

[0019] Preferably, the present invention further discloses a non-invasive traction splint, characterized in that the palmar proximal splint and the dorsal proximal splint are provided with connecting holes, which are connected to the mounting holes of the first fixing cover and the second fixing cover through fasteners.

[0020] Preferably, the present invention further discloses a non-invasive traction splint, characterized in that the non-invasive traction splint further comprises:

[0021] At least one radial splint is in the shape of an elongated strip, and a plurality of connecting through holes are provided along the longer side for passing the connecting belt.

[0022] Preferably, the present invention further discloses a non-invasive traction splint, characterized in that the palm side splint comprises a connecting portion and a palm side fixing portion, the palm side fixing portion is in the shape of a palm, and the connecting portion is provided with a connecting through hole for passing the connecting belt.

[0023] Preferably, the present invention further discloses a non-invasive traction splint, characterized in that the connecting belt comprises a magic belt.

[0024] Preferably, the present invention further discloses a non-invasive traction splint, characterized in that a combination of self-adhesive Velcro and sponge is further provided on the inner side of the first splint combination and the second splint combination.

[0025] The non-invasive traction splint of the present invention combines the actual clinical needs and the years of small splint research and development experience of Wei's Traumatology Department to establish a new fixation treatment technology. The fixation effect of this technology is not only better than that of the traditional Chinese medicine small splint, but also can play the function of axial traction through a non-invasive way, and avoids the secondary injury and high treatment cost caused by surgical treatment, thereby improving the clinical efficacy and the functional recovery level of the affected limb. The technology is simple to operate and low in price. It can be widely promoted and used in primary medical institutions, and has certain economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to preferred embodiments of the present disclosure, examples of which are shown in the accompanying drawings. Wherever possible, the same reference numerals will be used in all drawings to represent the same or similar parts. In addition, although the terms used in the present disclosure are selected from well-known and commonly used terms, some of the terms mentioned in the present disclosure may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description herein. In addition, it is required to understand the present disclosure not only by the actual terms used, but also by the meaning implied by each term.

[0027] The above and other objects, features and advantages of the present invention will become apparent to those skilled in the art from the detailed description of the present invention with reference to the accompanying drawings below.

[0028] Figure 1 It is a schematic diagram of the combined structure of a preferred embodiment of the non-invasive traction splint of the present invention;

[0029] Figure 2 yes Figure 1 A schematic diagram of the structure of the mid-volar proximal splint 1;

[0030] Figure 3 yes Figure 1 A schematic structural diagram of the mid-ulnar radial splint 2;

[0031] Figure 4 yes Figure 1 A schematic diagram of the structure of the mid-dorsal proximal splint 3;

[0032] Figure 5 yes Figure 1 A schematic diagram of the structure of the middle U-shaped fixed cover 4;

[0033] Figure 6(1) is Figure 1 A schematic structural diagram of the mid-volar splint 5;

[0034] FIG6(2) is an enlarged schematic diagram of the odontoid process 512 in FIG6(1);

[0035] Figure 7(1) is Figure 1 A schematic structural diagram of the middle back side splint 6;

[0036] FIG. 7( 2 ) is an enlarged schematic diagram of the dentate protrusion 612 in FIG. 7( 1 ).

[0037] Reference numerals

[0038] 1 - Volar proximal splint

[0039] 2-Ulnar and radial splint

[0040] 3 - Dorsal proximal splint

[0041] 4 - Fixed cover

[0042] 5 - Volar splint

[0043] 6 - Dorsal splint

[0044] 11 - Installation slot

[0045] 12 - Connection perforation

[0046] 13 - Odontoid process

[0047] 14 - Connection hole

[0048] 21 - Connection piercing

[0049] 31 - Installation slot

[0050] 32 - Connection piercing

[0051] 33 - odontoid process

[0052] 34 - Connection hole

[0053] 41 - Mounting hole

[0054] 401 - First fixed cover

[0055] 402 - Second fixed cover

[0056] 51 - Connection

[0057] 52 - Palm side fixation

[0058] 510 - Central chute

[0059] 511 - Side chute

[0060] 512 - Odontoid process

[0061] 52 - Palm side fixation

[0062] 521 - Connection piercing

[0063] 61 - Connection

[0064] 610 - Central chute

[0065] 611 - Side chute

[0066] 62 - Palm back support

[0067] 612 - Odontoid process

[0068] 621 - Connection slot

[0069] 91 - The first set of connecting screws

[0070] 92 - Second set of connecting screws DETAILED DESCRIPTION

[0071] This specification discloses one or more embodiments incorporating features of the present invention. The disclosed embodiments are merely illustrative of the present invention. The scope of the present invention is not limited to the disclosed embodiments. The present invention is defined by the appended claims.

[0072] References in the specification to "one embodiment," "an embodiment," "an exemplary embodiment," etc. indicate that the described embodiment may include a particular feature, structure, or characteristic, but not all embodiments need include the particular feature, structure, or characteristic. Furthermore, these phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with one embodiment, it is considered to be within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in connection with other embodiments (whether or not explicitly described).

[0073] In addition, it should be understood that the spatial descriptions used herein (e.g., above, below, over, left, right, below, top, bottom, vertical, horizontal, etc.) are for illustrative purposes only, and actual implementations of the structures described herein may be spatially arranged in any orientation or manner.

[0074] Let's first combine Figure 27 to 7, the various components of the non-invasive traction splint of the present invention are introduced.

[0075] Figure 2 2 is a schematic structural diagram of the palmar proximal splint 1 .

[0076] A plurality of connecting through holes 12 are provided along the longer side of the palmar proximal splint 1 , a long strip-shaped mounting groove 11 is provided in the center parallel to the longer side, a plurality of tooth-like protrusions 13 are provided on the outer groove edge of the mounting groove 11 , and a plurality of connecting holes 14 are provided in the mounting groove 11 .

[0077] Figure 4 yes Figure 1 Schematic diagram of the structure of the mid-dorsal proximal splint 3.

[0078] The back proximal splint 3 is Figure 2 The palm side proximal splint 1 is arranged opposite to the palm side proximal splint 1, and is placed on the back side of the arm when clamped. The longer side of the dorsal proximal splint 3 is provided with a plurality of connecting through holes 32, and the positions and numbers of the through holes 32 are corresponding to those of the palm side proximal splint 1. A long strip-shaped mounting groove 31 is arranged in the center of the parallel longer side, and a plurality of tooth-like protrusions 33 are arranged on the outer groove edge of the mounting groove 31, and a plurality of connecting holes 34 are arranged in the mounting groove 31.

[0079] Cooperate with Figure 2 The palmar proximal splint 1 is connected to the palmar splint 5 in Figure 6 (1), which includes a connecting portion 51 and a palmar fixing portion 52. The palmar fixing portion 52 is shaped like half a palm, and is provided with a plurality of connecting through holes 521. The connecting portion 51 is provided with a plurality of slide grooves along its long side, including a central slide groove 510 and a side slide groove 511. A tooth-like protrusion 512 is provided on the side of the central slide groove 510.

[0080] FIG6(2) further illustrates an enlarged view of the structure of the lateral tooth-like protrusion 512 on the connecting portion 51.

[0081] Figure 7(1) shows the coordination and Figure 4 The schematic structural diagram of the dorsal splint 6 connected to the mid-dorsal proximal splint 3 includes a connecting portion 61 and a palmar support portion 62, a slide groove for movable connection is provided on the connecting portion 61 along its long side direction, including a central slide groove 610 and a side slide groove 611, a tooth-like protrusion 612 is provided on the side of the slide groove 611, and a plurality of connecting grooves 621 are provided on the palmar support portion 62.

[0082] FIG. 7 ( 2 ) further illustrates the structure of the tooth-like protrusion 612 on the connecting portion 61 .

[0083] Figure 3 yes Figure 1Schematic diagram of the structure of the two corresponding ulnar and radial side splints 2, the splint 2 is in the shape of an elongated strip, and a plurality of connecting through holes 21 are provided along the longer side.

[0084] Figure 5 The fixing cover 4 for connecting the palmar proximal splint 1 and the palmar splint 5 , and the dorsal proximal splint 3 and the dorsal splint 6 is further illustrated, and a mounting hole 41 is provided on the fixing cover 4 for use in conjunction with the connecting hole 34 and the connecting hole 14 .

[0085] Back to Figure 1 , further introducing the assembly process of the present invention.

[0086] First, the palmar proximal splint 1 and the palmar proximal splint 5 are connected at the positions of the former's mounting groove 11 and the latter's slide groove 511 through the first fixing cover 401. Specifically, a first set of connecting screws 91 are used to connect with the connecting holes 14 on the palmar proximal splint 1 through the mounting holes 41 of the first fixing cover 401. The mounting groove 11 on the palmar proximal splint 1 is embedded in the central slide groove 510 of the connecting portion 51 of the palmar splint 5. The serrations 512 of the palmar splint 5 and the serrations 33 on the dorsal proximal splint 3 are engaged with each other. Thus, the palmar splint 5 clamped between the palmar proximal splint 1 and the first fixing cover 401 can be pulled and adjusted as needed.

[0087] Secondly, in the same way, the dorsal proximal splint 3 and the dorsal splint 6 are also connected by the second fixing cover 402, specifically, they are fixed by a second set of connecting screws 92 through the mounting holes 41 of the second fixing cover 402 and the connecting holes 34 on the dorsal proximal splint 3, and the mounting groove 31 on the dorsal proximal splint 3 is embedded in the central slide groove 610 of the rear palm support 62, so that the serrations 33 of the dorsal proximal splint 3 and the serrations 612 on the dorsal splint 6 are engaged with each other, thereby, the dorsal splint 6 clamped between the dorsal proximal splint 3 and the second fixing cover 402 can be pulled and adjusted as needed.

[0088] In addition, the present invention also includes a plurality of connecting belts 71-74, which can be connected by the above Figure 2 The connecting holes 12, 21 and 32, and the connecting holes 14 and 34 of each part in ~7 are arranged and connected as follows Figure 1 The structure shown.

[0089] Preferably, the connecting belt can adopt a magic belt so that the length can be adjusted according to specific circumstances.

[0090] When using the non-invasive traction splint of the present invention, the back of the patient's arm that needs traction is placed close to the dorsal proximal splint 3, the back of the hand is supported by the dorsal splint 6, and then the connecting belts 71-74 are wrapped around the palm of the arm upward, so that the palm proximal splint 1 covers the palm of the arm, and the two ulnar radial splints 2 are located therebetween. The palm fixing portion 52 shaped like half a palm is clamped at the palm position, and after adjusting the position of each splint, the connecting belts 71-74 are tightened one by one and fixed.

[0091] A special structure of the present invention is that the ulna and radius are pulled according to the treatment process. Specifically, the palmar splint 5 clamped between the palmar proximal splint 1 and the first fixing cover 401 is pulled and adjusted as needed. Similarly, the dorsal splint 6 clamped between the dorsal proximal splint 3 and the second fixing cover 402 is pulled and adjusted as needed. The length is conveniently adjusted by the dentates 33 and 13 in the two splint combinations, thereby achieving a traction effect.

[0092] After each assembly is completed, it can be pulled 5 times in sequence, each time by 4mm. When 5 times of pulling are completed and the pulling effect of the splint slips (i.e. disappears), the fixed cover 4 can be removed and restored to its original state. After the fixed cover 4 is installed, pulling can be performed here.

[0093] In summary, through the above structure, the present invention provides a non-invasive traction splint for fixing distal radius fractures, which includes a forearm fixation splint, a palm fixation splint and a fixation cover. The six splints that make up the splint combination are all plasticized according to the general shape of the human upper limbs to improve their fit with the fixed limb.

[0094] The six fixed splints are provided with holes at appropriate positions for fixing the straps to prevent them from sliding up and down, and the corresponding holes are provided with straps for easy removal. The inside of the six splints are all attached with self-adhesive Velcro with a sponge lining similar in shape to the splints for easy removal and washing.

[0095] In some embodiments, two rows of a total of four laterally protruding acute-angle tooth-like structures are provided at one end of the palmar proximal splint 1 and the dorsal proximal splint 3 .

[0096] Two rows of 16 acute-angle tooth-like structures are arranged on the palmar splint 5 and the dorsal splint 6. The spacing between the tooth-like structures is 4 mm. The convex structures are also inlaid with metal structures with threads.

[0097] In some embodiments, the palmar proximal splint 1 and the dorsal proximal splint 3 are engaged with the palmar splint 5 and the dorsal splint 6 through the toothed structures therein and are fixed by connecting screws to form a quantitatively adjustable traction structure.

[0098] In some embodiments, the sponge liner can be attached to the four plywood panels by means of self-adhesive Velcro, and then the matching self-adhesive Velcro tape can be passed through the corresponding perforations on the six plywood panels to assemble the six plywood panels into a cylindrical shape.

[0099] The advantages of the present invention are: on the basis of traditional fracture reduction techniques, the present invention draws on the principle of using traditional Chinese medicine small splints, utilizes modern composite materials, distraction osteogenesis and toothed occlusal advancement principles, integrates the good efficacy of traditional reduction techniques and the basic research results of distraction osteogenesis in promoting bone tissue growth, and avoids the occurrence of radial contraction and malformation of the affected limb in the late stage of traditional small splint fixation, and also avoids the secondary damage to blood vessels, tendons and nerves and wound infection caused by invasive surgical treatment. Through the development and application of this type of non-invasive traction splint, it is found that it combines the advantages of traditional Chinese medicine small splints and external fixation bracket surgical treatment, is superior to other treatment methods in maintaining radius height, preventing malformation of the affected limb and promoting bone tissue growth, and has certain advantages in restoring the function of the wrist joint of the affected limb. The present invention aims to explore a treatment method that is non-invasive, reliable in efficacy and easy to operate in fracture fixation treatment.

[0100] The foregoing description of the preferred embodiments is provided to enable any person skilled in the art to use or exploit the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles described herein may be applied to other embodiments without inventiveness. Thus, the present invention shall not be limited to the embodiments shown herein, but shall be based on the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A non-invasive traction splint, characterized in that: include: The first splint assembly includes a first ratchet structure and a first fixing cover, wherein the first ratchet structure is respectively arranged on the palm proximal splint and the palm splint, and the length of the first splint assembly is movably adjusted by the first ratchet structure, and the first ratchet structure further includes: a first group of dents arranged on the side of the mounting groove on the palm proximal splint; a second group of dents arranged on the side of the slide groove of the palm splint; the first group of dents and the second group of dents cooperate with each other, and the palm splint is clamped between the first fixing cover and the palm proximal splint; The second clamping plate assembly comprises a second ratchet structure and a second fixing cover, wherein the second ratchet structure is respectively arranged on the dorsal proximal clamping plate and the dorsal clamping plate, and the length of the second clamping plate assembly is movably adjusted by the second ratchet structure, and the second ratchet structure further comprises: a third group of tooth-like protrusions arranged on the side of the mounting groove of the dorsal proximal clamping plate; a fourth group of tooth-like protrusions arranged on the side of the sliding groove of the dorsal clamping plate; the third group of tooth-like protrusions and the fourth group of tooth-like protrusions cooperate with each other, and the dorsal clamping plate is clamped between the second fixing cover and the dorsal proximal clamping plate; A plurality of connecting straps, connecting the palm proximal splint and the dorsal proximal splint, and connecting the palm splint and the dorsal splint; Among them, the palmar splint and the dorsal splint can be adjusted by pulling, and the palmar splint and the dorsal splint can realize convenient adjustment of length through the first group of dentates and the third group of dentates; the first fixing cover and the second fixing cover are detachable, and traction can be performed after the first fixing cover and the second fixing cover are installed; the second group of dentates and the fourth group of dentates are each provided with a protruding structure with two rows of 16 acute-angled tooth structures in total, and the spacing between the two corresponding acute-angled tooth structures in the two rows is 4mm, and a metal structure with a thread is also inlaid on the protruding structure.

2. The non-invasive traction splint according to claim 1, characterized in that: The palm-side proximal splint and the dorsal proximal splint are provided with connecting holes, which are connected to the mounting holes of the first fixing cover and the second fixing cover through fasteners.

3. The non-invasive traction splint according to claim 2, characterized in that: The non-invasive traction splint further comprises: At least one radial splint is in the shape of an elongated strip, and a plurality of connecting through holes are provided along the longer side for passing the connecting belt.

4. The non-invasive traction splint according to claim 3, characterized in that: The palm side splint comprises a connecting portion and a palm side fixing portion, the palm side fixing portion is in the shape of a palm, and a connecting through hole is provided on the connecting portion for passing the connecting belt.

5. The non-invasive traction splint according to claim 4, characterized in that: The connecting belt comprises a magic belt.

6. The non-invasive traction splint according to claim 5, characterized in that: A combination of self-adhesive Velcro and sponge is further provided on the inner sides of the first splint combination and the second splint combination.

Images