Fracture fixation splint

Abstract

The invention provides a fracture fixation splint, and relates to the technical field of fracture splints.The fracture fixation splint comprises at least two inner-layer splints, at least two outer-layer splints, a pressure sensor, a controller, an adjusting device, a shell and a battery pack, the outer-layer splints are oppositely arranged to form a space wrapping human tissue, and the inner-layer splints are fixed to the inner sides of the outer-layer splints; the pressure sensors are distributed at the peripheral position and the middle position of the inner splint, the controller is electrically connected with the pressure sensors and the adjusting device, the pressure sensors transmit detected signals to the controller, and the controller adjusts the adjusting device to tighten or loosen according to the received signals so as to adjust the pressure between the inner splint and the human body soft tissue. Thus, the pressure between the human body soft tissue and the inner splint is sensed through the pressure sensor, a detection value is transmitted to the controller, the controller converts and analyzes the pressure and controls the adjusting device to be tightened or loosened, and then the pressure between the inner splint and the human body soft tissue can be automatically adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of fracture splints, in particular to a fracture fixing splint. Background Art

[0002] According to epidemiological big data statistics, osteoporosis, fractures and complications caused by aging will become a serious social public problem, most of which are seen in the elderly, and the number of patients in all age groups is increasing significantly. Fracture splints are an important means to prevent fracture displacement after reduction and promote the growth of fracture ends. Conventional fracture reduction and external fixation methods mainly include plaster external fixation, wooden splint external fixation, etc., but the pressure provided by the splint during fixation cannot be measured, and often depends on the personal experience of the operator. Excessive pressure is likely to cause complications, and too little pressure cannot achieve effective fixation. There are also disadvantages such as poor comfort, risk of complications, and poor adjustability. The current technology has some shortcomings. For example, Chinese patent application number CN200820159625.2 discloses a spring compression amount, bandage inflation amount, etc. for measuring pressure data, but the equipment is bulky, the design is complex, it is inconvenient to carry, the cost is high, and the sensitivity is poor, which limits the clinical application. Summary of the invention

[0003] The purpose of the present invention is to provide a fracture fixation splint to solve the technical problem of the prior art that the pressure of the fixation splint on human soft tissue is unknown. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a fracture fixation splint, comprising an inner splint, an outer splint, a pressure sensor, a controller, an adjusting device, a shell, and a battery pack, wherein at least two outer splints are provided and are arranged relative to each other to form a space for wrapping human tissue, the inner splint is fixed on the inner side of the outer splint, and the material of the inner splint is softer than that of the outer splint, the pressure sensors are distributed at the peripheral position and the middle position of the inner splint, the controller is electrically connected to the pressure sensor and the adjusting device, the pressure sensor transmits the detected signal to the controller, and the controller adjusts the adjusting device to tighten or relax according to the received signal to adjust the pressure between the inner splint and the human soft tissue, wherein the controller and the adjusting device are partially installed in the shell, and the shell is installed on the side of the outer splint away from the inner splint.

[0006] Preferably, the adjusting device includes a fastening rope, a motor, and a rotating wheel which are passed through the inner and outer splints, the fastening rope is passed through the rotating wheel, the inner and outer splints are provided with a first through hole for the fastening rope to pass through, the motor is connected to the rotating wheel to drive the rotating wheel to rotate forward or reverse, and the motor and the rotating wheel are installed in the housing.

[0007] Preferably, the controller is provided with battery protection.

[0008] Preferably, the inner layer plywood is provided with a second through hole penetrating the inner layer plywood, and the outer layer plywood is provided with a third through hole penetrating the outer layer plywood, and the third through hole is aligned with the through hole.

[0009] Preferably, a groove is provided on the inner layer splint, the pressure sensor is installed in the groove, and the pressure sensor protrudes from an end surface of the groove.

[0010] Preferably, the controller is communicatively connected to the mobile terminal.

[0011] Preferably, a display screen is provided on the housing, and the display screen is connected to the controller.

[0012] Preferably, a manually adjustable handle is provided on the housing, and the handle is connected to the rotating wheel.

[0013] Preferably, the material of the inner layer plywood is a soft material, and the material of the outer layer is a polylactic acid material.

[0014] Preferably, the inner layer plywood and the outer layer plywood are arranged in an arc shape.

[0015] The technical solution provided by this application document includes the following beneficial effects:

[0016] The present invention provides a fracture fixation splint, comprising an inner splint, an outer splint, a pressure sensor, a controller, an adjustment device, a housing, and a battery pack. At least two outer splints are provided, and are relatively arranged to form a space for wrapping human tissue. The inner splint is fixed on the inner side of the outer splint. The pressure sensor is distributed at the peripheral position and the middle position of the inner splint. The controller is electrically connected with the pressure sensor and the adjustment device. The pressure sensor transmits the detected signal to the controller. The controller adjusts the adjustment device to tighten or loosen according to the received signal, and adjusts the pressure between the inner splint and the human soft tissue. In this arrangement, the pressure between the human soft tissue and the inner splint is sensed by the pressure sensor, and the pressure sensed by the pressure sensor is transmitted to the controller. The controller converts and analyzes the pressure, and controls the adjustment device to tighten or loosen, thereby being able to automatically adjust the pressure between the inner splint and the human soft tissue, and avoid the inner splint exerting too much or too little pressure on the human soft tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a schematic structural diagram showing a fracture fixation splint according to an exemplary embodiment;

[0019] Figure 2 is a schematic diagram showing the structure between the motor and the rotating wheel in the housing according to an exemplary embodiment;

[0020] Figure 3 is a schematic diagram showing the structure of an outer layer plywood and an inner layer plywood according to an exemplary embodiment;

[0021] Figure 4 is a circuit diagram showing a battery protection according to an exemplary embodiment;

[0022] Figure 5 The diagram is a schematic diagram showing the principle structure of a fracture fixation splint according to an exemplary embodiment.

[0023] In the figure: 1. outer splint; 2. first through hole; 3. fastening rope; 4. pressure sensor; 5. housing; 6. inner splint; 7. display screen; 8. motor; 9. rotating wheel; 10. handle. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0025] This specific implementation provides a fracture fixation splint, which solves the technical problem in the prior art that the pressure of the fixation splint on human soft tissue is unknown.

[0026] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the invention described in the claims. In addition, the entire contents of the configurations shown in the following embodiments are not limited to the solutions required as the invention described in the claims.

[0027] Reference Figure 1-Figure 5 The present invention provides a fracture fixation splint, comprising an inner splint 6, an outer splint 1, a pressure sensor 4, a controller, an adjusting device, a shell 5, and a battery pack, wherein at least two outer splints 1 are provided, and are relatively arranged to form a space for wrapping human tissue, the inner splint 6 is fixed on the inner side of the outer splint 1, and the material of the inner splint 6 is softer than that of the outer splint 1, the outer splint 1 serves as a support for the inner splint 6, the pressure sensor 4 is distributed at the peripheral position and the middle position of the inner splint 6, the controller is electrically connected to the pressure sensor 4 and the adjusting device, the pressure sensor 4 transmits the detected signal to the controller, and the controller adjusts the adjusting device to tighten or relax according to the received signal to adjust the pressure between the inner splint 6 and the human soft tissue, wherein the controller and the adjusting device are partially installed in the shell 5, and the shell 5 is installed on the side of the outer splint 1 away from the inner splint 6.

[0028] With such arrangement, the pressure between the human body's soft tissue and the inner splint 6 is sensed by the pressure sensor 4, and the pressure sensed by the pressure sensor 4 is transmitted to the controller, which converts and analyzes the pressure and controls the adjustment device to tighten or relax, thereby automatically adjusting the pressure between the inner splint and the human body's soft tissue to avoid excessive or insufficient pressure on the human body's soft tissue by the inner splint.

[0029] Specifically, a first preset value and a second preset value are set in the controller, and the first preset value is smaller than the second preset value. When the detection value of the pressure sensor 4 is lower than the first preset value, it indicates that the pressure between the inner splint 6 and the human soft tissue is too small. The controller controls the adjusting device to tighten to increase the pressure between the inner splint 6 and the human soft tissue to ensure that the inner splint 6 and the outer splint 1 can well support the human soft tissue. When the detection value of the pressure sensor 6 is higher than the first preset value, it indicates that the pressure between the inner splint 6 and the human soft tissue is too large. The controller controls the adjusting device to relax to reduce the pressure of the inner splint 6 on the human soft tissue to ensure the comfort of the human body.

[0030] That is, the pressure sensor 2 is placed in the splint for the patient's radial fracture, and the information is collected to the big data center. By collecting a large amount of data on the patient's splint pressure and rehabilitation effect, the relationship between the patient's rehabilitation rate and effect and the splint pressure is statistically analyzed to obtain the optimal treatment plan. The treatment plan can be further subdivided according to the location and severity of the fracture, the patient's age, gender, and nature of work.

[0031] The pressure sensor 4 is an ultra-thin flexible sensor.

[0032] A further optimized solution is that the adjustment device includes a tightening rope 3, a motor 8, and a rotating wheel 9 which are passed through the inner plywood 6 and the outer plywood 1, wherein the tightening rope 3 is passed through the rotating wheel 9, so that when the rotating wheel 9 rotates, the tightening rope 3 can be wound around the rotating wheel 9, or the tightening rope 3 can be detached from the rotating wheel 9, wherein the inner plywood 6 and the outer plywood 1 are provided with a first through hole 2 for the tightening rope 3 to pass through, the tightening rope 3 is sequentially passed through the first through holes on the two outer plywood 1, and is simultaneously passed through the rotating wheel 9, the motor 8 is connected to the rotating wheel 9 to drive the rotating wheel 9 to rotate forward or reverse, thereby winding the tightening rope 3 around the rotating wheel 9 or detaching the tightening rope 3 from the rotating wheel 9, wherein the housing 5, the motor 8, and the rotating wheel 9 are installed in the housing 5, the motor 8 is electrically connected to the controller, and the controller gives the motor 8 a signal to rotate forward, reverse, or stop rotating.

[0033] To further optimize the solution, in order to prevent the controller from controlling the regulating device to rotate forward or reverse all the time, a battery protection is provided on the controller. Specifically, a combination of DW01+G and FS8205 chips is used as a battery protection circuit, wherein FS8205 is a 6-pin chip integrated with two N-channel MOS tubes whose drains are connected. The OC and OD ends of the DW01+G chip are respectively connected to the gates of the two MOS tubes (FS8205). The signal detected by the pressure sensor 4 is converted into a voltage, and the conduction and cutoff of the MOS tube are controlled according to the specific value of the voltage, thereby controlling the closed or disconnected state of the charging circuit and the discharging circuit at a certain moment, thereby achieving the purpose of protecting the system battery pack.

[0034] A further optimization scheme is to ensure the air permeability of the inner plywood 6 and the outer plywood 1, a second through hole penetrating the inner plywood 6 is provided on the inner plywood 6, and a third through hole penetrating the outer plywood 1 is provided on the outer plywood 1, and the third through hole is aligned with the second through hole, so that the external gas can be exchanged with the gas in the inner plywood 6 to ensure a certain air permeability.

[0035] To further optimize the solution, in order to facilitate the fixation of the pressure sensor 4, a groove is provided on the inner splint 6, the pressure sensor 4 is installed in the groove, and the pressure sensor 4 protrudes from the end face of the groove, so that the pressure sensor 4 can conveniently sense the pressure between the human soft tissue and the pressure sensor 4, and can detect the pressure value at any time.

[0036] A further optimization scheme is to enable the mobile terminal to view data conveniently, so that the controller and the mobile terminal can be communicatively connected, wherein a Bluetooth module is provided on the controller, and the mobile terminal can be communicatively connected with the controller through the Bluetooth module, so as to view the values ​​detected by the pressure sensor 4 received by the controller, which is convenient for the medical staff to view.

[0037] According to a further optimization scheme, a display screen 7 is provided on the housing 5, and the display screen 7 is connected to the controller, wherein the pressure value detected by the controller can be displayed on the display screen 7, which is convenient for people to view.

[0038] A further optimized solution is provided on the housing 5 for the convenience of manual adjustment. The handle 10 is connected to the rotating wheel 9, wherein the handle 10 is provided with an unlocked state and a locked state. When in the locked state, the handle 10 cannot drive the rotating wheel 9 to rotate. When the handle 10 is in the unlocked state, the handle 10 can drive the rotating wheel 9 to rotate, so as to facilitate manual adjustment.

[0039] To further optimize the solution, the inner layer of the splint 6 is made of a flexible material, and the outer layer is made of a polylactic acid material. The flexible material is light, light, and breathable. Polylactic acid has good thermal stability, a processing temperature of 170 to 230°C, good solvent resistance, and can be processed in a variety of ways, such as extrusion, spinning, biaxial stretching, and injection blow molding. In addition to being biodegradable, products made of polylactic acid have good biocompatibility, gloss, transparency, feel, and heat resistance. Polylactic acid also has certain bacteria resistance, flame retardancy, and UV resistance, and has a wide range of uses, including medical and health fields. Polylactic acid can well support human soft tissues and prevent human soft tissues from being affected by the outside world.

[0040] A further optimization scheme is to make the inner layer splint 6 and the outer layer splint 1 more conform to the circumference of the human body's soft tissue, so that the inner layer splint 6 and the outer layer splint 1 are arranged in an arc shape, which can better wrap the human body's soft tissue and avoid dislocation of the human body's soft tissue.

[0041] Specifically, the traditional Chinese medicine external fixation splint is digitally modeled using computer-aided design, and a 3D printing file is designed. It is optimized on the basis of the medical splint used for radial fractures, and is designed into a porous inner splint 6 and an outer splint 1, wherein the inner splint material is made of flexible material and the outer splint is made of polylactic acid material. The internal structure and appearance of the splint are designed, and various parameters of the splint external fixation are quantified, and the operation site and operation steps are standardized, normalized, and quantitatively analyzed, and finally manufactured by 3D printing. The digital 3D printed splint is easy to promote and apply, and the difference between its therapeutic efficacy and other therapies can be correctly evaluated. Therefore, designing a new type of splint that fits the forearm modality is conducive to improving the rehabilitation quality of fracture healing, and is more in line with ergonomics and biomechanics requirements.

[0042] It should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. used herein to indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0044] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

[0045] It is to be understood that the same or similar parts in the above embodiments can refer to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments. The multiple schemes provided in this application include their own basic schemes, which are independent of each other and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together.

[0046] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present application. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A fracture fixation splint, characterized in that: The invention comprises an inner layer splint (6), an outer layer splint (1), a pressure sensor (4), a controller, an adjusting device, a shell (5), and a battery pack, wherein at least two outer layer splints (1) are provided and are arranged relative to each other to form a space for wrapping human tissue, the inner layer splint (6) is fixed on the inner side of the outer layer splint (1), and the material of the inner layer splint (6) is softer than that of the outer layer splint (1), the pressure sensor (4) is distributed at the peripheral position and the middle position of the inner layer splint (6), the controller is electrically connected to the pressure sensor (4) and the adjusting device, the pressure sensor (4) transmits the detected signal to the controller, and the controller adjusts the adjusting device to tighten or loosen according to the received signal, so as to adjust the pressure between the inner layer splint (6) and the human soft tissue, wherein the controller and the adjusting device are partially installed in the shell (5), and the shell (5) is installed on the side of the outer layer splint (1) away from the inner layer splint (6).

2. The fracture fixation splint according to claim 1, characterized in that: The adjusting device comprises a tightening rope (3), a motor (8) and a rotating wheel (9) which are passed through the inner layer plywood (6) and the outer layer plywood (1); the tightening rope (3) is passed through the rotating wheel (9); the inner layer plywood (6) and the outer layer plywood (1) are provided with a first through hole (2) for the tightening rope (3) to pass through; the motor (8) is connected to the rotating wheel (9) to drive the rotating wheel (9) to rotate forward or reverse; the motor (8) and the rotating wheel (9) are installed in the housing (5).

3. The fracture fixation splint according to claim 1, characterized in that: The controller is provided with a battery protection.

4. The fracture fixation splint according to claim 1, characterized in that: The inner plywood (6) is provided with a second through hole penetrating the inner plywood (6), and the outer plywood (1) is provided with a third through hole penetrating the outer plywood (1), and the third through hole is aligned with the through hole.

5. The fracture fixation splint according to claim 1, characterized in that: The inner layer sandwich plate (6) is provided with a groove, the pressure sensor (4) is installed in the groove, and the pressure sensor (4) protrudes from the end surface of the groove.

6. The fracture fixation splint according to claim 1, characterized in that: The controller is communicatively connected to the mobile terminal.

7. The fracture fixation splint according to claim 1, characterized in that: The housing (5) is provided with a display screen (7), and the display screen (7) is connected to the controller.

8. The fracture fixation splint according to claim 2, characterized in that: The housing (5) is provided with a manually adjustable handle (10), and the handle (10) is connected to the rotating wheel (9).

9. The fracture fixation splint according to claim 1, characterized in that: The material of the inner layer plywood (6) is a soft material, and the material of the outer layer is a polylactic acid material.

10. The fracture fixation splint according to claim 1, characterized in that: The inner layer plywood (6) and the outer layer plywood (1) are arranged in an arc shape.

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