CN211074737U - 3D prints cervical spondylopathy prevention and cure pillow - Google Patents
3D prints cervical spondylopathy prevention and cure pillow Download PDFInfo
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Abstract
The utility model discloses a 3D printing cervical spondylosis prevention and treatment pillow, which comprises a hard pillow inner and a skeleton plate; the hard pillow inner is fixed on the framework plate; the surface of the hard pillow core is coated with a soft body; the hard pillow core comprises two side bulges and a middle part, and the middle part is smoothly connected with the two side bulges. The utility model discloses can provide individualized 3D for the patient that the degree of change is different in the nature curvature of cervical vertebra and print stereoplasm pillow, and be applicable to different prone positions such as lie on the back, lie on one's side.
Description
Technical Field
The utility model relates to a medical care technical field specifically is a 3D prints cervical spondylopathy prevention and cure pillow.
Background
In recent years, the cervical spondylosis problems in China are in the trend of low age and generalization, and along with the increasing prominence of the aging problem of the population in China, the cervical spondylosis becomes a significant problem affecting the quality of life of people and hindering the healthy Chinese construction.
At present, the mainstream treatment of cervical spondylosis is surgical treatment and non-surgical treatment, wherein the surgical treatment has large trauma, and the postoperative recovery time of a patient is long and the patient is easy to relapse; in non-operative treatment, the side effect of drug treatment is great, and the focus is difficult to eradicate, and although acupuncture massage treatment can obviously relieve the symptoms of cervical spondylosis, the flexibility is poor, so that the therapy is not suitable for the fast-paced life of the modern and the abnormal cervical curvature is difficult to improve. In contrast, the traction therapy can not only fundamentally improve the stress distribution of the neck, but also give consideration to the flexibility through the means of the therapeutic apparatus, the therapeutic pillow and the like, so that the development of the traction therapy can prevent the occurrence of cervical spondylosis aiming at the pathological features and pathogenesis of the cervical spondylosis, avoid the deterioration of the cervical spondylosis, effectively improve the life quality of patients and provide a new idea for the treatment of the cervical spondylosis in China.
The traction therapy is a method which applies an external force to a certain part of a body or a joint to separate the body to a certain extent and properly draft surrounding soft tissues so as to achieve the treatment purpose. At present, cervical vertebra therapeutic instruments and cervical vertebra treatment pillows based on the principle of traction therapy are common in the market, but due to differences of cervical vertebra curvature, cervical vertebra soft tissue structures, cervical spondylosis development stages and sleeping habits of different people, the mass-produced commodities are often difficult to meet the requirements of different patients, and the treatment effect is low, even symptoms are aggravated. In the aspect of cervical spondylosis treatment pillows, new exploration and achievement continue to exist in recent years, but all have certain limitations. For example, the "do neck pillow" introduced in patent CN 106419369 a is a pure physical safe cervical vertebra stretching pillow, but the surface is too hard to use for a long time or the pillow is asleep, so that the patient is difficult to persist in treatment and has obvious discomfort in the early stage of use. As the CN 108244921 a pillow and the manufacturing method thereof, although the comfort of the pillow is improved by introducing the sponge pillow core, the types, densities and molding methods of the materials are not optimized, and the comfort improvement is limited.
The development of the CT technology and the 3D printing technology provides technical support for the individual customization of the cervical pillow. The CT technology, also known as the X-ray computed tomography technology, mainly irradiates a human body through the rotation of X-rays with a single axial plane, and can reconstruct a fault plane image by using a three-dimensional technology of a computer due to different blocking indexes of different tissues to the X-rays. Currently, there is a method for automatically printing 3D pillow according to medical data by using CT technology in the manufacture of cervical pillow, such as patent CN 201811569207.5, but it can only use the curvature obtained by CT scanning, and the curvature is different from the curvature of normal cervical vertebra of patient, and the therapeutic effect is very small. The 3D printing technology, also known as additive manufacturing technology, is a fast molding technology of bondable materials based on mathematical model files, and can be used for producing personalized medical products adapted to the personal physical traits of patients. However, most of the existing cervical spondylosis prevention and treatment pillows based on 3D printing are in a theoretical level and have many defects. For example, patent CN 107752620a discloses a pillow and its manufacturing method, which fails to integrate an auxiliary treatment system, and has a single function, and also has the problem of discomfort during the early period of use. In addition, the 3D printed cervical pillow disclosed in patent CN 205866523U is designed to treat the patient with the supine sleeping posture without considering the change of the sleeping posture of the patient, which may cause the patient to get worse in the lateral sleeping posture; a specific and feasible 3D printing hard pillow inner model obtaining method cannot be designed, and the operability and accuracy are poor; additional functional components are present, but no solution is proposed to support the removal and replacement of components. Meanwhile, the forming mode and the material of the 3D printed hard pillow core are not optimized in the patents, and the quality of the 3D printed hard pillow core is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a 3D prints cervical spondylopathy prevention and cure pillow has realized the dismantlement and the change of treatment needle functional component, promotes the wholeness and the flexibility of cervical vertebra pillow, increase of service life.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: A3D printing cervical spondylosis prevention and treatment pillow is characterized by comprising a hard pillow inner and a skeleton plate; the hard pillow inner is fixed on the framework plate; the surface of the hard pillow core is coated with a soft body; the hard pillow core comprises two side bulges and a middle part, and the middle part is smoothly connected with the two side bulges.
The framework plate comprises a bottom plate; four right-angle clamping grooves are formed in the bottom plate; the hard pillow inner is fixed on the bottom plate, and four right angles on the bottom surface of the hard pillow inner are respectively joggled with four right angle clamping grooves.
The two side edges of the bottom plate are respectively hinged with a side plate, the side edge of the side plate, which is far away from the bottom plate, is provided with a fixing strip, and when the side plate rotates to be perpendicular to the bottom plate, the fixing strip is fixedly connected with the side edge of the soft body.
The soft body comprises a body with the shape and the size matched with those of the hard pillow inner; the surface of the body is covered with a heating and warm-keeping layer.
The surface of the heating and warm-keeping layer is covered with an antibacterial temperature control layer; the surface of the antibacterial temperature control layer is covered with an anti-mite comfortable layer.
The surface of the heating and warm-keeping layer is provided with a slow-release traditional Chinese medicine layer.
A temperature sensor, a temperature and humidity sensor and a sound sensor are arranged on the surface of the anti-mite comfortable layer; and the temperature sensor, the temperature and humidity sensor and the sound sensor are all electrically connected with the control circuit.
Establishing an x axis along the long edge and a y axis along the wide edge by taking the end point of the lower left corner of the front face of the neck pillow as an origin; the temperature sensor is arranged on the surface of the anti-mite comfortable layer with the horizontal and vertical coordinates meeting the requirements of (1,1) and (5, 1); the temperature and humidity sensor is positioned on the surface of the anti-mite comfortable layer, and the horizontal and vertical coordinates of the anti-mite comfortable layer meet (3, 1); the sound sensor is arranged on the surface of the anti-mite comfortable layer with the horizontal and vertical coordinates satisfying (3, 2.5).
The slow-release traditional Chinese medicine layer comprises a polyester fiber non-woven fabric bag and a medicine-containing adhesive layer arranged in the polyester fiber non-woven fabric bag.
The heating and warm-keeping layer comprises a heating sheet; the heating piece is a fiber cloth sewed with electric heating carbon fibers, and the ends of the electric heating carbon fibers are connected with the control circuit.
Compared with the prior art, the utility model discloses the beneficial effect who has does: the utility model is provided with the polypropylene framework plate structure, thereby realizing the disassembly and replacement of the functional components, greatly improving the integrity and flexibility of the cervical pillow and prolonging the service life; soft body coating materials, material density and molding modes are optimized, and comfort is improved to the maximum extent; by combining with the traditional Chinese medicine therapy, discomfort in the initial stage of use can be relieved, and an auxiliary treatment effect is achieved; the temperature adjusting device is configured, so that the use experience of a patient can be improved; by introducing various sensors and intelligent chips, the sleep condition of the patient can be monitored in real time.
Drawings
Fig. 1 is a schematic diagram of establishing a plane rectangular coordinate system in the process of deriving a 3D printing hard pillow core model from a normal cervical vertebra curvature model.
Fig. 2 is a schematic view of a 3D printed hard pillow core.
FIG. 3 is a schematic representation of a polypropylene carcass panel.
Fig. 4 is a schematic diagram of the slow rebound memory cotton soft body coating, the functional components and the sleep quality monitoring system in the intelligent auxiliary treatment system.
FIG. 5 is a schematic view of the soft cover of slow rebound memory cotton and the positions of the headrest, neck pillow and side pillow.
FIG. 6 is a schematic view of the arrangement of the sensors on the upper surface of the anti-mite and antibacterial layer in the top view
In the figure: the 3D printing hard pillow inner 1, a curved surface 11 which accords with the natural curvature of cervical vertebrae of a patient, a supporting structure 12, a polypropylene framework plate 2, a bottom plate 21, a side panel 22, a right-angle clamping groove structure 23, a door shaft structure 24, a clamping groove 25, a slow-rebound memory cotton soft body coating 3, a neck pillow part 31, a side pillow part 32, a headrest part 33, a heating and warm-keeping layer 4, a slow-release traditional Chinese medicine layer 5, a medicine-containing adhesive layer 51, a polyester fiber non-woven bag 52, an antibacterial temperature control layer 6, an anti-mite comfortable layer 7, a temperature sensor 8, a temperature and humidity sensor 9 and a sound sensor 10.
Detailed Description
Referring to fig. 2-4, a multifunctional 3D printing cervical spondylosis prevention and treatment pillow comprises a traction system and an intelligent auxiliary therapy system. The traction system is provided with a 3D printed hard pillow core 1 and a polypropylene framework plate 2, and the polypropylene framework plate 2 is joggled with the 3D printed hard pillow core 1. As shown in fig. 2, the 3D printed hard pillow core 1 includes a curved surface 11 and a supporting structure 12 that conform to the natural curvature of the patient's cervical vertebrae. 3D prints stereoplasm pillow 1 and for hollow and not having the bottom surface, customizes according to patient's cervical vertebra curvature, and the cervical vertebra curve of laminating patient can effective release pressure, and the bracketing reaches every point for restore the normal physiological curve of neck, improve the neck joint and arrange, correct cervical spondylopathy. 3D prints stereoplasm pillow 1 and prints the preparation for nylon materials through 3D and form, and preferred nylon materials is nylon powder PA2200, and preferred 3D prints the shaping mode and is selective laser sintering.
Referring to fig. 3, the polypropylene frame plate 2 has a bottom plate 21 with four right angle slot structures 23 in the center above the bottom surface and two side plates 22, which allow seamless insertion of the support structure 12 of the 3D printed hard pillow core. The side panel 22 is connected with two sides of the bottom plate 21 through a door shaft structure 24, and the door shaft structure 24 enables the side panel 22 to rotate by 90 degrees around the shaft, and the side panel rotates from a state parallel to the bottom plate 21 to a state perpendicular to the bottom plate 21; the bottom plate 21 and the side plate 22 are provided with 45-degree inclined planes at the mutual border, so that the side plate is fixed in a state of being vertical to the bottom plate; two clamping grooves 25 are formed in the two opposite side panels and used for fixing the slow rebound memory cotton soft body coating; the side panels 22 are in a double hump shape with a big hump and a small hump, and the side close to the patient is provided with three groups of adjacent zipper structures (not shown) along the hump line.
The method for acquiring the 3D printed hard pillow inner model based on finite element analysis comprises the following steps:
s1: and (3) performing low-radiation and low-dose CT scanning on the C1-C7 segment of the cervical vertebra of the supine position of the patient by adopting a self-adaptive statistical iterative reconstruction technology, wherein the layer thickness is 1.0mm, and the data storage is in a DICOM format.
S2: and importing the DICOM format data into the Mimics 17 software, and processing and obtaining a layer containing cervical vertebra C1-C7 segments.
S3: exporting the file of the patient cervical vertebra geometric model into an Inp format file supported by Abaqus, and establishing a finite element model.
S4: and carrying out stress analysis on the finite element model to obtain the cervical vertebra full-section finite element model with normal cervical vertebra curvature.
And S5, deriving a 3D printing hard pillow inner model from the normal cervical vertebra curvature model.
Wherein the step of processing the CT image by using the mics 17 software in the step S2 is as follows:
s21: and removing bone tissues such as clavicle, skull, soft tissue, thoracic vertebra and the like by a mask editing tool, a threshold segmentation and region growing tool to obtain a layer containing cervical vertebra C1-C7 segments.
S22: and (5) repairing and filling the inner holes of the layers obtained in the step (S21), Smoothing the surface by using a smoothening function, and materializing the layers by using a 3D (three-dimensional) function, so as to obtain a bony model of cervical vertebra C1-C7 segments.
S23: the 3D model is gridded using the REMESH module.
Wherein the step of establishing the finite element model in the step S3 is:
s31: material properties of the cells are defined. Ligament tissue is added and defined as linear elements and membrane elements. The vertebral bodies and discs are defined as isotropic linear elastic material models, followed by assignment of material properties.
And S32, assembling the units into a total matrix equation of the whole discrete domain, combining the divided grid groups, and solving the total assembly, wherein a boundary condition is defined by using a L oad module for the supine position model in the step S31, the lower surface of the C7 vertebral body is completely fixed in all directions, a preload with the weight of 7% of that of a client is applied to the upper surface of the skull base to simulate the weight of the skull in a personalized manner, and then a 2.0 N.m moment is applied in the backward extending direction to obtain the normal curvature of the human cervical vertebra.
Further, in the step S31, the ligament tissue is added with reference to the anatomical record of cervical vertebrae with good health condition to simulate the status of human cervical vertebrae without being damaged, and the assignment of the material model refers to professional biomechanics documents and data.
Wherein the step of deriving the 3D printed hard pillow core model from the normal cervical curvature model in step S5 is as follows:
s51: based on the Borden measurement method, a plane rectangular coordinate system is obtained from the normal cervical curvature to position the occipital surface curve, and the coordinate system takes the maximum value of the cervical depth as the origin to divide the occipital surface curve into two branches.
S52: based on the rectangular plane coordinate system given in step S51, linear regression analysis is performed on one of the occipital surface curves.
S53: the same operation as S52 is performed for the other branch.
And S54, modeling the obtained curve to obtain the ST L format 3D model for 3D printing.
S55: and measuring the head pillow height and the neck pillow height in the supine state, and giving the measured values to the 3D printed hard pillow inner model.
S56: and measuring the length and width of the neck pillow in the supine state, and giving the measured values to the 3D printed hard pillow inner model.
Further, the method for determining the rectangular plane coordinate system in step S51 is as follows: referring to fig. 1, a straight line a is drawn from the upper posterior edge of the dentate process of the axis of the vertebra to the lower posterior edge of the C7 vertebral body, an arc line B is drawn along the posterior edge of each vertebral body of the cervical vertebrae, the vertical cross line at the widest point between the lines A, B is defined as C, which is defined as the depth of physiological curvature of the cervical vertebrae, and the vertical cross line C is determined as a coordinate axis, and a straight line passing through the intersection point of C and the cervical vertebrae and perpendicular to C is determined as another coordinate axis.
Further, in step S52, the linear regression method is that, assuming that y is a × xbThe logarithm is taken for both ends, the nonlinear equation is converted into a linear equation lny of lna + blnx, u of lny, a of lna, and v of lnx, and a linear regression equation u of a + bv is obtained to obtain (x + bv)ij，yij)→(vij，uij) And then searching function matching by using a least square method. To establish this linear equation, A and b are determined, and the least square principle is applied to "measured value uijDeviation (u) from calculated value u (u ═ a + bv) () ofij-u) sum of squares ∑ (u)ij-u)2The minimum is the optimization criterion.
Wherein the step of measuring the head rest height and the neck rest height in the supine state and giving the measured values to the 3D-printed hard pillow inner model in the step S55 is as follows:
s551, the patient looks straight ahead at the eyes, stands naturally, the cervical vertebra and neck muscles are relaxed naturally, and the head is high (h) when lying horizontally1) The horizontal distance between the posterior protuberance of the pillow and the vertical line of the most convex part of the back, the height of the neck pillow (h)2) The horizontal distance between the vertical lines from the most concave point of the back neck part to the most convex part of the back part.
S552: get the height h of the middle headrest in S5511Height of neck pillow h2Is different from the thickness d of the polypropylene skeleton plate by the difference H1＝h1-d、H2＝h2D is used as the actual assignment of the pillow height and the neck pillow height of the 3D printing hard pillow core.
Further, in step S56, the method for measuring the length and width of the neck pillow in the supine state is: the patient looks straight ahead at the eyes and stands naturally, and the muscles of the cervical vertebra and the neck are self-propelledThen relax, get the neck and rest long (L)1) Slightly larger than the linear distance between the two auricles and the width of the neck pillow (L)2) The vertical distance between the back protuberance of the pillow and the horizontal line of the upper ends of the two shoulders.
Referring to fig. 4, the intelligent auxiliary treatment system comprises a control system (not shown), a slow rebound memory cotton soft coating 3 and functional components, wherein the slow rebound memory cotton soft coating 3 directly covers the 3D printed hard pillow core 1 from the bottom and is fixed by the 3D printed hard pillow core 1 and a side panel clamping groove 25 of a polypropylene skeleton plate; the functional components are disassembled on the polypropylene framework plate 2 through a zipper structure and comprise a heating and warm-keeping layer 4, a slow-release traditional Chinese medicine layer 5, an antibacterial temperature control layer 6, an anti-mite comfortable layer 7 and a sleep quality monitoring system; the heating and warm-keeping layer 4 is positioned outside the slow rebound memory cotton soft body coating 3, is used for promoting drug permeation and keeping cervical vertebrae warm, and is simultaneously regulated and controlled by a control system; the slow-release traditional Chinese medicine layer 5 is sewn on the outer surface of the heating and warm-keeping layer 4 at a position corresponding to the cervical vertebra, and is used for relieving discomfort during treatment and assisting in treatment; the antibacterial temperature control layer 6 is positioned at the outer side of the heating and warm-keeping layer and is used for regulating and controlling the surface temperature of the pillow and killing bacteria on the body surface; the anti-mite comfortable layer 7 is positioned on the outer side of the antibacterial temperature control layer 6 and is in direct contact with the skin of a patient; the sleep quality monitoring system comprises two temperature sensors 8, a temperature and humidity sensor 9, a sound sensor 10 and a control circuit (not shown), wherein the sensors 8910 are positioned on the outer surface of the anti-mite comfortable layer 7; the control system comprises a lithium battery, a control circuit, a control panel, an MCU chip and a Bluetooth module, wherein the control panel (not shown) is positioned on the outer surface of the side panel 22 of the polypropylene framework plate, and other components of the control system are positioned inside the side panel 22.
The voltage provided by the lithium battery is preferably 12-36V; the MCU chip is connected with the temperature sensor, the temperature and humidity sensor and the sound sensor through leads and is used for processing sensor signals to obtain related parameter information representing the sleep condition of a patient; the Bluetooth module transmits the relevant parameter information to the cloud end, so that a patient can conveniently check the relevant parameter information through mobile terminals such as a mobile phone; the control panel is connected with the MCU chip and the lithium battery through leads and is used for realizing the control of the patient on the sensor, the MCU chip, the Bluetooth module and the heating and warming layer; after the heating and warm-keeping layer is opened, three gears are arranged: the low temperature is 40 ℃, the medium temperature is 45 ℃, and the high temperature is 50 ℃.
The zipper structure is used for realizing the assembly and disassembly of functional components such as the heating and warm-keeping layer 4, the slow-release traditional Chinese medicine layer 5, the antibacterial temperature-control layer 6, the anti-mite comfortable layer 7 and the like on the control pillow.
Referring to fig. 5, the slow rebound memory cotton soft body coating 3 completely fills a gap between the side surface of the 3D printed hard pillow core 1 and the polypropylene skeleton plate 2, and simultaneously covers the curved surface 11, which conforms to the natural curvature of the cervical vertebrae of the patient, on the 3D printed hard pillow core 1 in an omnibearing manner; the middle neck pillow part 31 of the soft body coating 3 is slightly concave, the side pillow parts 32 on two sides are slightly convex and are higher than the headrest 33 part, the middle part and two sides of the neck pillow part 31 are smoothly connected, and the protrusions on two sides are used for supporting the complete head in a side lying state and adapting to the increase of the height of the side pillow part 32 caused by shoulder width in the side lying state; the slow rebound memory cotton is manufactured by a molding process, and the preferred density is 40-70 kg/m3(ii) a After the slow rebound memory cotton is molded, the memory cotton is cut and finely adjusted by using a memory cotton processing device, so that the height of the lateral pillows at the bulges at the two sides is matched with the actual condition of a patient, and the middle sunken part can be matched with the 3D printing hard pillow core 1: the width is consistent, the soft body is coated slightly longer, the thickness can ensure that a user can obtain comfortable experience, and the connecting part of the pillow core and the soft body has the same curvature radius; the slow rebound memory cotton has air holes (not shown) shaped like honeycomb for realizing air circulation.
Further, the method for measuring the side pillow height of the slow rebound memory cotton comprises the following steps:
s1: the measured person looks straight ahead, and measures the distance H from the subclavian artery pulse point to the ipsilateral acromion by using a graduated scale3。
S2: on the other hand, the measurement was performed again using the same method as S1.
The heating and warm-keeping layer 4 is covered and removed on the slow rebound memory cotton 3 through the innermost zipper structure on the hump line of the polypropylene skeleton plate 2; the heating and warm-keeping layer comprises a warm-keeping layer covering the whole soft body and a heating device designed in the warm-keeping fabric; the warm-keeping layer comprises cotton, spandex and the like; the heating device is embedded in the thermal fabric body and consists of a heating sheet and a controller; the heating sheet is a piece of fiber cloth sewn with electric heating carbon fibers, is adhered to the position, corresponding to the cervical vertebra, in the heating and warm-keeping layer body, is preferably 0.2-2mm in thickness, and can be customized in size; the electrothermal carbon fiber consists of 3000 carbon fiber filaments, and the end of the electrothermal carbon fiber is connected with a control system through a lead.
The slow-release traditional Chinese medicine layer 5 comprises a medicine-containing laminating layer 51 and a polyester fiber non-woven bag 52; the polyester fiber non-woven fabric bag 52 is sewed on the position corresponding to the cervical vertebra on the outer surface of the heating and warm-keeping layer 4 after being sterilized; the surface of the polyester fiber non-woven fabric bag 52 is provided with a zipper (not shown), the polyester fiber non-woven fabric bag is internally provided with a drug-containing adhesive layer 51, and the zipper is directly unzipped when the drug is replaced, so that the drug-containing adhesive layer is replaced; the medicated attaching layer comprises traditional Chinese medicines and penetration enhancer, and the penetration enhancer and the heating warm-keeping layer can promote absorption of traditional Chinese medicines together.
The drug-containing adhesive layer is obtained by the following steps:
s1: removing dust from the medicinal materials, washing with water, processing, and pulverizing.
S2: produced by dry extrusion to a thickness of 2 μm and a density of 6g/m2The polyester nonwoven fabric laminated film of (1).
S3: and dispersing the treated medicine and the skin permeation-promoting composition in a dimethyl sulfoxide solution, stirring and mixing the two, and performing sufficient defoaming treatment to obtain a dispersion containing the medicine and the skin permeation-promoting composition.
S4: the dispersion of S3 was drawn up and dried on a polyester release film to form a drug-containing adhesive layer having a thickness of about 60 μm, which was transferred to a thickness of 2 μm and a density of 6g/m2In the polyester nonwoven fabric support of (3), the film is cut as required.
Further, the antibacterial temperature control layer 6 is assembled and disassembled on the cervical pillow through a zipper structure on the last inner side of a hump line of the polypropylene skeleton plate 2, the antibacterial temperature control layer comprises microencapsulated phase-change material n-octadecane, nano silver-based antibacterial substances and fiber materials, and the antibacterial temperature control layer is provided with a groove-shaped cross section and can quickly discharge sweat and moisture generated when a human body sleeps. The nano silver-based antibacterial substance can inhibit more than 600 bacteria, and the antibacterial effectiveness is more than 99 percent through tests. The microencapsulated phase change material octadecane can effectively maintain the surface temperature of the cervical vertebra pillow through solid-liquid conversion, the phase change temperature of the phase change material octadecane is 35 ℃, the microencapsulated phase change material octadecane can be effectively isolated from other components in the air, the failure caused by side reaction is avoided, and the microencapsulated phase change material is isolated from the external environment, has more stable properties, is more beneficial to exerting the temperature regulation function, and is more uniformly distributed in the fabric fibers.
The microencapsulated n-octadecane based on in situ hybridization is obtained by the following steps:
s1 Sodium Dodecyl Sulfate (SDS) 5.0g, polyvinyl alcohol (PVA) 4.0g, Triton X100 5.0g and resorcinol 5.0g were dissolved in distilled water 100m L and stirred at 20 ℃ for 10 minutes using a magnetic stirrer rotating at 300 rpm.
S2, adding 30.0g of urea, 19.0g of n-octadecane and 5.2g of ammonium chloride successively into the mixed aqueous solution prepared in the step S1, stirring at 300rpm, and adjusting the pH of the solution to 3.5-4.0 by using 0.2 mol/L of acetic acid-sodium acetate buffer solution.
S3: adding a formaldehyde aqueous solution with the mass fraction of 37% into the mixed solution prepared in the step S2, continuously stirring, controlling the temperature at 50 ℃, and reacting for 40-60 minutes.
S4: and cooling the solution prepared in the step S3 to 25 ℃, adding a proper amount of water, filtering, and drying in a sealed vacuum environment.
S5: the S4 procedure was repeated until all formaldehyde was removed.
The anti-mite comfortable layer 7 is assembled and disassembled on the cervical vertebra pillow through a zipper structure on the outermost side of a hump line of the polypropylene skeleton plate 2, the anti-mite comfortable layer is made of polyester fibers and nylon fibers, the mass fraction of the polyester fibers is preferably 70%, the mass fraction of the nylon fibers is preferably 30%, the fiber fabric pores of the anti-mite comfortable layer are only 1 mu m, mites and secretions of the mites cannot pass through the fiber fabric pores, and the fabric is soft, soft and comfortable, so that excellent use experience can be given to a patient.
The utility model discloses an all sensors all adopt special mode of arranging, utilize fuzzy logic principle, can accurately measure human body temperature. The data collected by the sensor can effectively detect the sleep quality of the user, and can be used as the raw data of clinical diagnosis to effectively detect the sleep condition and the snoring condition of the patient.
Referring to fig. 6, the arrangement of the sensors is determined by the following steps:
s1: and establishing an x axis along the long edge and a y axis along the wide edge by taking the endpoint of the lower left corner of the front face of the neck pillow as an origin, and determining the unit length.
S2: and respectively placing a temperature sensor on the surface of the anti-mite comfortable layer with the horizontal and vertical coordinates satisfying (1,1) and (5, 1).
S3: and a temperature and humidity sensor is arranged on the surface of the anti-mite comfortable layer with the horizontal and vertical coordinates satisfying (3, 1).
S4: and a sound sensor is arranged on the surface of the anti-mite comfortable layer with the horizontal and vertical coordinates satisfying (3, 2.5).
Further, the unit length determination method in step S1 is: the unit length of the x axis is one sixth of the length; the unit length of the y-axis is one third of the width.
Further, the temperature sensor in step S2 is preferably a TMP112 temperature sensor.
Further, in step S3, the temperature and humidity sensor is preferably an SHT20 temperature and humidity sensor.
Further, in step S4, the sound sensor is preferably a TZ-2KA noise sensor.
Claims (10)
1. A3D printing cervical spondylosis prevention and treatment pillow is characterized by comprising a hard pillow core (1) and a skeleton plate (2); the hard pillow inner (1) is fixed on the framework plate (2); the surface of the hard pillow inner (1) is coated with a soft body; the hard pillow inner (1) comprises two side bulges and a middle part, and the middle part is smoothly connected with the two side bulges.
2. The 3D-printed cervical spondylosis prevention and treatment pillow according to claim 1, wherein the skeleton plate (2) comprises a bottom plate (21); four right-angle clamping grooves (23) are formed in the bottom plate (21); the hard pillow inner (1) is fixed on the bottom plate (21), and four right angles on the bottom surface of the hard pillow inner (1) are respectively joggled with four right-angle clamping grooves (23).
3. The 3D printing cervical spondylosis prevention pillow according to claim 2, wherein two side edges of the bottom plate (21) are hinged to a side panel (22), the side edge of the side panel (22) far away from the bottom plate (21) is provided with a fixing strip, and when the side panel (22) rotates to be perpendicular to the bottom plate (21), the fixing strip is fixedly connected with the side edge of the soft body.
4. The 3D printing cervical spondylosis prevention and treatment pillow according to claim 3, wherein the soft body comprises a body (3) with a shape and a size matched with those of the hard pillow inner (1); the surface of the body (3) is covered with a heating and warm-keeping layer (4).
5. The 3D printing cervical spondylosis prevention and treatment pillow according to claim 4, wherein the surface of the heating and warm-keeping layer (4) is covered with an antibacterial temperature control layer (6); the surface of the antibacterial temperature control layer (6) is covered with an anti-mite comfortable layer (7).
6. The 3D printing cervical spondylosis prevention and treatment pillow according to claim 5, wherein a slow-release traditional Chinese medicine layer (5) is arranged on the surface of the heating and warm-keeping layer (4).
7. The 3D printing cervical spondylosis prevention and treatment pillow according to claim 5 or 6, wherein a temperature sensor (8), a temperature and humidity sensor (9) and a sound sensor (10) are arranged on the surface of the anti-mite comfort layer (7); and the temperature sensor (8), the temperature and humidity sensor (9) and the sound sensor (10) are all electrically connected with the control circuit.
8. The 3D printing cervical spondylosis prevention and treatment pillow according to claim 7, wherein an x-axis is established along a long side and a y-axis is established along a wide side with an end point of a lower left corner of the front of the neck pillow as an origin; the temperature sensor (8) is arranged on the surface of the anti-mite comfortable layer with the horizontal and vertical coordinates satisfying (1,1) and (5, 1); the temperature and humidity sensor (9) is positioned on the surface of the anti-mite comfortable layer (7) with the horizontal and vertical coordinates satisfying (3, 1); the sound sensor (10) is arranged on the surface of the anti-mite comfortable layer with the horizontal and vertical coordinates satisfying (3, 2.5).
9. The 3D printing cervical spondylosis prevention and treatment pillow according to claim 6, wherein the slow-release traditional Chinese medicine layer (5) comprises a polyester fiber non-woven bag (52) and a medicine-containing adhesive layer (51) arranged in the polyester fiber non-woven bag (52).
10. The 3D printing cervical spondylosis prevention and treatment pillow according to claim 8, wherein the heating and warm-keeping layer (4) comprises a heating sheet; the heating piece is a fiber cloth sewed with electric heating carbon fibers, and the ends of the electric heating carbon fibers are connected with the control circuit.
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| CN201921816357.1U CN211074737U (en) | 2019-10-28 | 2019-10-28 | 3D prints cervical spondylopathy prevention and cure pillow |
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| CN201921816357.1U CN211074737U (en) | 2019-10-28 | 2019-10-28 | 3D prints cervical spondylopathy prevention and cure pillow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116913481A (en) * | 2023-09-06 | 2023-10-20 | 武汉必盈生物科技有限公司 | External fixed neck pillow model generation method, system, electronic equipment and storage medium |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116913481A (en) * | 2023-09-06 | 2023-10-20 | 武汉必盈生物科技有限公司 | External fixed neck pillow model generation method, system, electronic equipment and storage medium |
| CN116913481B (en) * | 2023-09-06 | 2023-11-28 | 武汉必盈生物科技有限公司 | External fixed neck pillow model generation method, system, electronic equipment and storage medium |
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