A personalized lumbar pillow and its design method, design device and storage medium

Abstract

The present application provides a personalized lumbar pillow and its design method, design device and storage medium, by obtaining the lumbar lateral X-ray film and waist three-dimensional body surface information model of the subscriber, and importing the three-dimensional modeling software to draw the original lumbar curvature of the subscriber, and obtaining the original lumbar curvature through measurement; the lumbar curvature of the lumbar pillow of the lumbar pillow is constructed in combination with the waist length and the final lumbar curvature of the subscriber, and the upper end closed curve is formed by extending the spline curve along the direction of the 11-12 thoracic vertebra curvature of the subscriber; the lower end closed curve is formed by extending the spline curve along the rear part of the sacrum of the subscriber; the straight line segment at the bottom of the pillow area is constructed according to the height of the lumbar pillow, and a closed curve is formed, and then the lumbar pillow three-dimensional model is obtained through modeling processing, so as to be printed by 3D using flexible materials. The present application can be personalized according to the lumbar situation of different subscribers, so that it can fully fit the physiological curvature of the subscriber.

Description

Technical Field

[0001] The present application relates to the technical field of pillows, and in particular to a personalized lumbar pillow and a design method, a design device and a storage medium thereof. Background Art

[0002] Under normal circumstances, the human lumbar spine has a certain convex forward arc, which is the physiological curvature of the lumbar spine. With the development of science and technology, the changes in modern people's working methods and lifestyles, such as long-term sitting for office work, and the degenerative changes of the lumbar spine leading to the gradual instability of the lumbar mechanical structure, have caused the reduction or disappearance of the physiological curvature of the lumbar spine, which often develops into lumbar diseases over time, such as lumbar disc herniation and lumbar sacral joint injury. Patients often show symptoms such as low back pain, sciatica, radiating pain, numbness and weakness in the lower limbs, and cauda equina syndrome. They may also show reduced lumbar range of motion, muscle atrophy or decreased muscle strength. Those with severe conditions will have urinary and bowel dysfunction and abnormal sensation in the saddle area, which seriously affects the quality of life. Lumbar pillows can often be used for treatment, and correction can be completed during normal rest. It has good convenience.

[0003] Currently, most common lumbar pillows are semi-cylindrical lumbar pillows made of various materials such as memory foam, latex, sponge, bamboo and wood. Since they are all mass-produced and have a single shape, they cannot be designed according to the different needs of patients, so that the above products cannot be personalized according to the physiological curves of different patients, resulting in unsatisfactory treatment effects or overcorrection. Summary of the invention

[0004] In view of the shortcomings of the prior art mentioned above, the technical problem to be solved by the present application is to provide a personalized lumbar pillow and its design method, design device and storage medium, so as to solve the shortcomings of mass production, single shape and poor therapeutic effect of lumbar pillows in the prior art.

[0005] To achieve the above-mentioned purpose and other related purposes, the first aspect of the present application provides a personalized lumbar pillow design method, the method comprising: obtaining a lateral X-ray of the lumbar spine and a three-dimensional surface information model of the waist of the user, and importing a three-dimensional modeling software to draw the original lumbar curvature of the user, and obtaining the original lumbar curvature through measurement; constructing the lumbar curvature of the lumbar pillow area of ​​the lumbar pillow in combination with the waist length and the final lumbar curvature of the user; extending the lumbar curvature of the lumbar pillow area along the direction of the curvature of the 11th-12th thoracic vertebra of the user with a spline curve to form an upper closed curve of the lumbar pillow; extending the lumbar curvature of the lumbar pillow area along the posterior direction of the user's sacrum with a spline curve to form a lower closed curve of the lumbar pillow; constructing a straight line segment at the bottom of the pillow area according to the height of the lumbar pillow; forming a closed curve with the lumbar curvature of the lumbar pillow area, the upper closed curve of the lumbar pillow, the lower closed curve of the lumbar pillow and the straight line segment at the bottom of the pillow area, and then obtaining a three-dimensional model of the lumbar pillow through modeling processing for 3D printing using flexible materials.

[0006] Preferably, the method also includes: when the lumbar lateral X-ray film and the lumbar three-dimensional surface information model are imported into the three-dimensional modeling software, before drawing the original lumbar curvature of the user, the lumbar lateral X-ray film and the lumbar three-dimensional surface information model are size- and position-aligned, and the transparency is adjusted so that the lumbar three-dimensional surface information model can be seen through the lumbar lateral X-ray film; the method for measuring the original lumbar curvature is the Cobb measurement method; and the spline curve function is used to draw the original lumbar curvature of the user.

[0007] Preferably, the Cobb measurement method includes: making two tangent lines along the upper edge of the first lumbar vertebra and the upper edge of the sacral vertebra of the user respectively; the acute angle of intersection of the two tangent lines is used to represent the physiological curvature of lumbar lordosis, and 30° to 80° is selected as the normal lumbar curvature.

[0008] Preferably, the method for obtaining the final lumbar curvature includes: when the original lumbar curvature is normal, keeping the original lumbar curvature unchanged as the final lumbar curvature; when the original lumbar curvature is abnormal, adjusting the original lumbar curvature so that the adjusted lumbar curvature is a normal lumbar curvature or is adjusted to a normal lumbar curvature in stages to obtain the adjusted final lumbar curvature.

[0009] Preferably, the method for adjusting the original lumbar curvature includes: adjusting the tangent position of the upper edge of the first lumbar vertebra and the tangent position of the upper edge of the sacral vertebra by the Cobb measurement method to obtain two adjusted straight lines, and intersecting the above two straight lines as the intersection point; using the three-point arc function to make a three-point arc near the junction of the first lumbar pedicle and the spinous process, the intersection point, and the junction of the fifth lumbar pedicle and the spinous process on the above two adjusted straight lines, and obtaining the center of the above three-point arc; using the circular angle theorem to infer that the circular angles corresponding to the same arc or equal arcs are equal, that is, the three-point arc part sandwiched by the above two straight lines is the adjusted lumbar curvature; through the above steps, the final lumbar curvature is adjusted to the normal lumbar curvature or to the normal lumbar curvature in stages.

[0010] Preferably, the three-dimensional model of the lumbar pillow is obtained through modeling processing, including: deleting redundant lines and line segments to obtain a lumbar pillow plane view; performing physical stretching processing on the lumbar pillow plane view to obtain a three-dimensional model of the lumbar pillow; wherein, the modeling processing also includes: any one or more combinations of lofting, symmetry, calibration parameters, and rendering.

[0011] The second aspect of the present application provides a lumbar pillow design device, the device comprising: an acquisition module, used to acquire a lateral X-ray of the lumbar spine and a three-dimensional body surface information model of the lumbar region of the customer, and import the three-dimensional modeling software to draw the original lumbar curvature of the customer, and obtain the original lumbar curvature through measurement; a processing module, used to construct the lumbar curvature of the lumbar pillow area of ​​the lumbar pillow in combination with the customer's waist length and the final lumbar curvature; the lumbar curvature of the lumbar pillow area is further extended along the direction of the customer's 11th-12th thoracic vertebra curvature with a spline curve to form an upper closed curve of the lumbar pillow; the lumbar curvature of the lumbar pillow area is further extended along the posterior direction of the customer's sacrum with a spline curve to form a lower closed curve of the lumbar pillow; a straight line segment at the bottom of the pillow area is constructed according to the height of the lumbar pillow; the lumbar curvature of the lumbar pillow area, the upper closed curve of the lumbar pillow, the lower closed curve of the lumbar pillow and the straight line segment at the bottom of the pillow area are formed into a closed curve, and then a three-dimensional model of the lumbar pillow is obtained through modeling processing for 3D printing using flexible materials.

[0012] A third aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the personalized lumbar pillow design method as described above is implemented.

[0013] A fourth aspect of the present application provides a lumbar pillow, which is obtained by the personalized lumbar pillow design method described above; the lumbar pillow includes a lumbar pillow area, an upper end of the pillow area and a lower end of the pillow area in sequence, and the lumbar pillow is 3D printed, and the material of the 3D printing is a flexible material.

[0014] Preferably, the flexible material is selected from any one or more combinations of TPU, nylon plastic, photosensitive resin, silica gel, rubber, latex, ABS plastic, PVC plastic, silicone resin and acrylic resin.

[0015] The present application provides a personalized lumbar pillow and its design method, design device and storage medium. The method comprises the following steps: obtaining a lateral X-ray of the lumbar spine and a three-dimensional surface information model of the waist of a customer, and importing the three-dimensional modeling software to draw the original lumbar curvature of the customer, and obtaining the original lumbar curvature through measurement; constructing the lumbar curvature of the lumbar pillow area of ​​the lumbar pillow in combination with the customer's waist length and the final lumbar curvature; extending the lumbar curvature of the lumbar pillow area along the direction of the customer's 11th-12th thoracic vertebra curvature with a spline curve to form an upper closed curve of the lumbar pillow; extending the lumbar curvature of the lumbar pillow area along the posterior direction of the customer's sacrum with a spline curve to form a lower closed curve of the lumbar pillow; constructing a straight line segment at the bottom of the pillow area according to the height of the lumbar pillow; forming a closed curve by forming the lumbar curvature of the lumbar pillow area, the upper closed curve of the lumbar pillow, the lower closed curve of the lumbar pillow and the straight line segment at the bottom of the pillow area, and then obtaining a three-dimensional model of the lumbar pillow through modeling processing for 3D printing using flexible materials. The present application includes at least one of the following beneficial effects:

[0016] 1) It can be designed according to the lumbar spine conditions of different users, so that it can fully fit the patient's physiological curvature and achieve personalized, precise and customized treatment;

[0017] 2) Within the acceptable range for the customizer, the adjusted lumbar curvature is adjusted to the normal lumbar curvature or in stages to the normal lumbar curvature, and a better lumbar curvature can be selected within the normal lumbar curvature range. For example, the normal lumbar curvature measured by the Cobb method is 30-80°, and 50° is generally selected in clinical practice. Within the acceptable range for the customizer, 50° tends to be selected, that is, a certain angle is appropriately increased (that is, slightly larger than the normal angle) to avoid the 3D printed lumbar pillow being compressed and deformed during use, affecting the treatment effect, fully relieving lumbar pressure, restoring the normal physiological curvature of the lumbar vertebrae, and eliminating compression of the sciatic nerve and other nerve plexuses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic flow chart of a personalized lumbar pillow design method in one embodiment of the present application.

[0019] Figure 2 Shown is a schematic diagram of the principle of measuring lumbar curvature using the Cobb measurement method in one embodiment of the present application.

[0020] Figure 3 Shown is a schematic diagram of the principle of drawing the lumbar vertebrae curvature in one embodiment of the present application.

[0021] Figure 4 Shown is a schematic diagram of the principle of a personalized lumbar pillow designed in one embodiment of the present application.

[0022] Figure 5 Shown is a plan view of a personalized lumbar pillow in one embodiment of the present application.

[0023] Figure 6 Shown is a schematic diagram of a physical stretching model of a personalized lumbar pillow in one embodiment of the present application.

[0024] Figure 7 Shown is a schematic diagram of a grid lightweight model of a personalized lumbar pillow in one embodiment of the present application.

[0025] Figure 8 Shown is a module schematic diagram of a personalized lumbar pillow design device in one embodiment of the present application. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application, and thus the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0028] In response to the defects of the prior art such as mass production, single shape and poor therapeutic effect, this application aims to provide a 3D printed lumbar pillow and its design method that can be individually designed according to the different lumbar lengths, bone degeneration conditions and different medical conditions of patients, so as to achieve a personalized solution to the problem of lumbar curvature correction.

[0029] like Figure 1 FIG. 1 is a flow chart of a personalized lumbar pillow design method in one embodiment of the present application. As shown in the figure, the method includes:

[0030] Step S101: Obtain the lateral X-ray of the lumbar spine and the three-dimensional surface information model of the lumbar region of the user, and import them into the three-dimensional modeling software to draw the original lumbar spine curvature of the user, and obtain the original lumbar spine curvature through measurement.

[0031] Preferably, a lateral X-ray of the lumbar spine and a three-dimensional surface information model of the waist are obtained. The three-dimensional surface information model of the waist is obtained by a portable three-dimensional optical scanner, such as a combination of a structure sensor and a portable tablet, which are connected via a data cable. After entering the scanner APP scanning interface, a suitable scanning range is selected, generally from about 4-5 cm below the inferior angle of the scapula to the hip position, just covering the waist part completely, and finally the handheld scanner is rotated stably for a few weeks to complete the scan.

[0032] Among them, when the lateral lumbar X-ray film and the 3D surface information model of the waist are imported into the 3D modeling software, before drawing the original lumbar curvature of the customizer, the lateral lumbar X-ray film and the 3D surface information model of the waist are aligned in size and position, and the transparency is adjusted so that the 3D surface information model of the waist can be seen through the lateral lumbar X-ray film, so that the lateral lumbar X-ray film is aligned with the 3D surface information model of the waist.

[0033] Preferably, a three-dimensional modeling software (such as soldworks, etc.) is imported to draw the original lumbar curvature of the customer, and the original lumbar curvature is obtained by measurement.

[0034] In one embodiment of the present application, the method for measuring the original lumbar curvature is the Cobb measurement method; the original lumbar curvature of the user is drawn using a spline curve function.

[0035] like Figure 2 As shown in FIG. 1 , the Cobb measurement method includes: making two tangent lines A and B along the upper edge a of the first lumbar vertebra and the upper edge b of the sacral vertebra of the customer respectively; the two tangent lines intersect at c, and the acute angle of intersection is used to represent the physiological curvature of lumbar lordosis, that is, the lumbar curvature. Usually 30° to 80° is selected as the normal lumbar curvature. Preferably, 50° is selected as the normal value reference in general clinical practice.

[0036] Step S102: The lumbar curvature of the lumbar pillow is constructed by combining the waist length of the customer and the final lumbar curvature.

[0037] In one embodiment of the present application, the method for obtaining the final lumbar curvature includes:

[0038] When the original lumbar curvature is normal, the original lumbar curvature is maintained unchanged as the final lumbar curvature; when the original lumbar curvature is abnormal, the original lumbar curvature is adjusted so that the adjusted lumbar curvature is the normal lumbar curvature or is adjusted to the normal lumbar curvature in stages to obtain the final adjusted lumbar curvature.

[0039] For example, if the normal lumbar curvature is 50° as the reference value, then Figure 2 The Cobb measurement method shown in the figure can obtain the original lumbar curvature of the customer, and the Figure 2Whether the acute angle shown is around 50° is used to determine whether the original lumbar curvature of the customer is abnormal. If the deviation is large, the lumbar curvature is abnormal. If there is no deviation or the deviation is small, it is normal. When the original lumbar curvature is abnormal.

[0040] In one embodiment of the present application, the method for adjusting the original lumbar curvature includes:

[0041] A. Use the Cobb measurement method to adjust the tangent position of the upper edge of the first lumbar vertebra and the tangent position of the upper edge of the sacral vertebra to obtain two adjusted straight lines, and intersect the two straight lines as the intersection point;

[0042] B. Use the three-point arc function to draw a three-point arc near the junction of the first lumbar pedicle and the spinous process, the intersection, and the junction of the fifth lumbar pedicle and the spinous process on the two adjusted straight lines to obtain the three-point arc, and then obtain the center of the three-point arc;

[0043] C. Using the circular angle theorem, it can be deduced that the circular angles of the same arc or equal arcs are equal, that is, the three-point arc portion sandwiched by the above two straight lines is the adjusted lumbar radian;

[0044] D. Through the above steps, the final lumbar curvature is adjusted to the normal lumbar curvature or adjusted to the normal lumbar curvature in stages.

[0045] like Figure 3 As shown, the lumbar radian of the lumbar pillow is constructed in combination with the waist length and the final lumbar curvature of the customer. Among them, a point d on the tangent A (near the junction of the first lumbar pedicle and the spinous process), a point e on the tangent B (near the junction of the fifth lumbar pedicle and the spinous process), and the intersection c form an arc, and the center o is obtained based on the three points. The circular angle theorem is used to infer that the circular angles of the same arc or equal arcs are equal, and the three-point arc part sandwiched by the straight lines A and B is the adjusted lumbar radian. Among them, point d to point e is the lumbar radian of the lumbar pillow.

[0046] Step S103: Extend the lumbar curvature of the lumbar pillow area along the direction of the 11th-12th thoracic vertebra curvature of the user with a spline curve to form an upper closed curve of the lumbar pillow; extend the lumbar curvature of the lumbar pillow area along the posterior direction of the user's sacrum with a spline curve to form a lower closed curve of the lumbar pillow; Step S104: Construct a straight line segment at the bottom of the pillow area according to the height of the lumbar pillow.

[0047] like Figure 4As shown, for example, first make a vertical auxiliary line C, and continue to extend the lumbar vertebrae curvature of the lumbar pillow area along the direction of the 11th-12th thoracic vertebrae curvature of the customer with a spline curve, such as extending from point d to the auxiliary line C, to obtain the upper end closed curve D of the lumbar pillow; continue to extend the lumbar vertebrae curvature of the lumbar pillow area along the posterior direction of the customer's sacrum with a spline curve, such as extending from point e to the auxiliary line C, to obtain the lower end closed curve E of the lumbar pillow. Auxiliary line C is the straight line segment at the bottom of the pillow area, and the height of the lumbar pillow can be adjusted by adjusting its left and right distance.

[0048] Step S104: The lumbar curvature of the lumbar pillow area, the upper closed curve of the lumbar pillow, the lower closed curve of the lumbar pillow and the straight line segment at the bottom of the pillow area are formed into a closed curve, and then a three-dimensional model of the lumbar pillow is obtained through modeling processing for 3D printing using flexible materials.

[0049] The three-dimensional model of the lumbar pillow obtained by modeling includes: deleting redundant lines and line segments to obtain a lumbar pillow plane diagram, such as Figure 5 As shown; the lumbar pillow plane image is stretched to obtain a lumbar pillow three-dimensional model, as shown Figure 6 The modeling process also includes any one or more combinations of lofting, symmetry, calibration parameters, and rendering. In addition, the mesh lightweight model diagram of the personalized lumbar pillow can be referenced. Figure 7 shown.

[0050] like Figure 6 As shown, a model schematic diagram of a personalized lumbar pillow in one embodiment of the present application is shown. As shown in the figure, the lumbar pillow 1 includes a lumbar pillow area 2, an upper end 3 of the pillow area and a lower end 4 of the pillow area in sequence.

[0051] The lumbar pillow 1 can be made by 3D printing, and the material of the 3D printing is a flexible material, which is selected from any one or more combinations of TPU, nylon plastic, photosensitive resin, silica gel, rubber, latex, ABS plastic, PVC plastic, silicone resin and acrylic resin.

[0052] In summary, the personalized lumbar pillow described in the present application can be individually designed according to the lumbar conditions of different users, so that it can fully fit the patient's physiological curvature and achieve personalized, precise and customized treatment; at the same time, within the acceptable range of the user, the adjusted lumbar curvature can be adjusted to the normal lumbar curvature or in stages to the normal lumbar curvature, and a better lumbar curvature can be selected within the normal lumbar curvature range.

[0053] like Figure 8 FIG. 8 is a schematic diagram of a module of a personalized lumbar pillow design device in one embodiment of the present application. As shown in the figure, the device 800 includes:

[0054] The acquisition module 801 is used to obtain the lateral X-ray of the lumbar spine and the three-dimensional surface information model of the lumbar region of the user, and import the three-dimensional modeling software to draw the original lumbar curvature of the user, and obtain the original lumbar curvature through measurement.

[0055] Processing module 802 is used to construct the lumbar curvature of the lumbar pillow in the lumbar pillow area in combination with the waist length and the final lumbar curvature of the customer; the lumbar curvature of the lumbar pillow area is continued to be extended along the direction of the customer's 11th-12th thoracic vertebra curvature with a spline curve to form an upper closed curve of the lumbar pillow; the lumbar curvature of the lumbar pillow area is continued to be extended along the posterior direction of the customer's sacrum with a spline curve to form a lower closed curve of the lumbar pillow; a straight line segment at the bottom of the pillow area is constructed according to the height of the lumbar pillow; the lumbar curvature of the lumbar pillow area, the upper closed curve of the lumbar pillow, the lower closed curve of the lumbar pillow and the straight line segment at the bottom of the pillow area are formed into a closed curve, and then a three-dimensional model of the lumbar pillow is obtained through modeling processing for 3D printing using flexible materials.

[0056] It should be noted that it should be understood that the division of the various modules of the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also be all implemented in the form of hardware; some modules can also be implemented in the form of software called by processing elements, and some modules can be implemented in the form of hardware. For example, the processing module can be a separately established processing element, or it can be integrated in a chip of the above device. In addition, it can also be stored in the memory of the above device in the form of program code, and called and executed by a processing element of the above device. The implementation of other modules is similar. In addition, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

[0057] For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as one or more application specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs). For another example, when a module is implemented in the form of a processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0058] In one embodiment of the present application, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the following Figure 1 The method described.

[0059] At any possible level of technical detail combination, the present application may be a system, method and / or computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present application.

[0060] Computer readable storage medium can be a tangible device that can hold and store instructions used by an instruction execution device. Computer readable storage medium can be, for example, (but not limited to) an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (non-exhaustive list) of computer readable storage medium include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, for example, a punch card or a convex structure in a groove on which instructions are stored, and any suitable combination thereof. The computer readable storage medium used here is not interpreted as a transient signal itself, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagated by a waveguide or other transmission medium (for example, a light pulse by an optical fiber cable), or an electrical signal transmitted by a wire.

[0061] The computer-readable program described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in each computing / processing device.

[0062] The computer program instructions for performing the operation of the present application can be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, integrated circuit configuration data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and procedural programming languages ​​such as "C" language or similar programming languages. Computer-readable program instructions can be executed completely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer, partially on the remote computer, or completely on the remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (for example, using an Internet service provider to connect through the Internet). In some embodiments, by using the state information of computer-readable program instructions to personalize electronic circuits, such as programmable logic circuits, field programmable gate arrays (FPGAs) or programmable logic arrays (PLAs), the electronic circuits can execute computer-readable program instructions, thereby realizing various aspects of the present application.

[0063] In summary, the present application provides a multi-method fusion mechanism matching method, device, equipment and storage medium, which obtains the lateral X-ray of the lumbar spine and the three-dimensional surface information model of the waist of the customer, and imports the three-dimensional modeling software to draw the original lumbar curvature of the customer, and obtains the original lumbar curvature through measurement; the lumbar curvature of the lumbar pillow area of ​​the lumbar pillow is constructed in combination with the customer's waist length and the final lumbar curvature; the lumbar curvature of the lumbar pillow area is continued to be extended along the direction of the customer's 11th-12th thoracic vertebra curvature with a spline curve to form an upper closed curve of the lumbar pillow; the lumbar curvature of the lumbar pillow area is continued to be extended along the posterior direction of the customer's sacrum with a spline curve to form a lower closed curve of the lumbar pillow; according to the height of the lumbar pillow, a straight line segment at the bottom of the pillow area is constructed; the lumbar curvature of the lumbar pillow area, the upper closed curve of the lumbar pillow, the lower closed curve of the lumbar pillow and the straight line segment at the bottom of the pillow area form a closed curve, and then a three-dimensional model of the lumbar pillow is obtained through modeling processing for 3D printing using flexible materials.

[0064] The present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0065] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A personalized lumbar pillow design method, characterized in that: The method comprises: Obtain the lateral X-ray of the lumbar spine and the three-dimensional surface information model of the lumbar region of the customer, and import them into the three-dimensional modeling software to draw the original lumbar curvature of the customer, and obtain the original lumbar curvature through measurement; The lumbar curvature of the lumbar pillow is constructed by combining the waist length and the final lumbar curvature of the customer; The lumbar vertebrae curvature of the lumbar pillow area is extended along the curvature direction of the 11th-12th thoracic vertebrae of the customer with a spline curve to form an upper closed curve of the lumbar pillow; the lumbar vertebrae curvature of the lumbar pillow area is extended along the posterior direction of the customer's sacrum with a spline curve to form a lower closed curve of the lumbar pillow; a straight line segment at the bottom of the pillow area is constructed according to the height of the lumbar pillow; The lumbar curvature of the lumbar pillow area, the upper closed curve of the lumbar pillow, the lower closed curve of the lumbar pillow and the straight line segment at the bottom of the pillow area are formed into a closed curve, and then a three-dimensional model of the lumbar pillow is obtained through modeling processing for 3D printing using flexible materials.

2. The personalized lumbar pillow design method according to claim 1, characterized in that: The method further comprises: When the lumbar lateral X-ray film and the lumbar three-dimensional body surface information model are imported into the three-dimensional modeling software, before drawing the original lumbar curvature of the customer, the lumbar lateral X-ray film and the lumbar three-dimensional body surface information model are aligned in size and position, and the transparency is adjusted so that the lumbar three-dimensional body surface information model can be seen through the lumbar lateral X-ray film; The method for measuring the original lumbar curvature is the Cobb measurement method; Use the spline function to draw the original lumbar curvature of the customizer.

3. The personalized lumbar pillow design method according to claim 2, characterized in that: The Cobb measurement method includes: Draw two tangent lines along the upper edge of the first lumbar vertebra and the upper edge of the sacral vertebra of the customer respectively; The acute angle of the intersection of the two tangents is used to represent the physiological curvature of the lumbar lordosis, and 30° to 80° is selected as the normal lumbar curvature.

4. The personalized lumbar pillow design method according to claim 1, characterized in that: The method for obtaining the final lumbar curvature includes: When the original lumbar curvature is normal, keep the original lumbar curvature unchanged as the final lumbar curvature; When the original lumbar curvature is abnormal, the original lumbar curvature is adjusted so that the adjusted lumbar curvature is a normal lumbar curvature or is adjusted to a normal lumbar curvature in stages to obtain a final adjusted lumbar curvature.

5. The personalized lumbar pillow design method according to claim 4, characterized in that: The method for adjusting the original lumbar curvature comprises: The tangent position of the upper edge of the first lumbar vertebra and the tangent position of the upper edge of the sacral vertebra are adjusted by the Cobb measurement method to obtain two adjusted straight lines, and the intersection of the two straight lines is used as the intersection point; Use the three-point arc function to draw a three-point arc near the junction of the first lumbar pedicle and the spinous process, the intersection, and the junction of the fifth lumbar pedicle and the spinous process on the two adjusted straight lines, and then obtain the center of the three-point arc; Using the circular angle theorem, it can be deduced that the circular angles of the same arc or equal arcs are equal, that is, the three-point arc portion sandwiched by the above two straight lines is the adjusted lumbar radian; Through the above steps, the final lumbar curvature is adjusted to the normal lumbar curvature or to the normal lumbar curvature in stages.

6. The personalized lumbar pillow design method according to claim 1, characterized in that: The three-dimensional model of the lumbar pillow obtained through modeling processing includes: Delete unnecessary lines and line segments to obtain the plane diagram of the lumbar pillow; The lumbar pillow plane image is subjected to entity stretching processing to obtain a lumbar pillow three-dimensional model; wherein the modeling processing also includes: any one or more combinations of lofting, symmetry, calibration parameters, and rendering.

7. A personalized lumbar pillow design device, characterized in that: The device comprises: The acquisition module is used to obtain the lateral X-ray of the lumbar spine and the three-dimensional surface information model of the lumbar region of the customer, and import the three-dimensional modeling software to draw the original lumbar curvature of the customer, and obtain the original lumbar curvature through measurement; The processing module is used to construct the lumbar curvature of the lumbar pillow area of ​​the lumbar pillow in combination with the waist length and the final lumbar curvature of the customer; the lumbar curvature of the lumbar pillow area is further extended along the direction of the 11th-12th thoracic vertebra curvature of the customer with a spline curve to form an upper closed curve of the lumbar pillow; the lumbar curvature of the lumbar pillow area is further extended along the rear part of the sacrum of the customer with a spline curve to form a lower closed curve of the lumbar pillow; a straight line segment at the bottom of the pillow area is constructed according to the height of the lumbar pillow; the lumbar curvature of the lumbar pillow area, the upper closed curve of the lumbar pillow, the lower closed curve of the lumbar pillow and the straight line segment at the bottom of the pillow area are formed into a closed curve, and then a three-dimensional model of the lumbar pillow is obtained through modeling processing for 3D printing using flexible materials.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the personalized lumbar pillow design method as described in any one of claims 1 to 6 is implemented.

9. A personalized lumbar pillow, characterized in that: The lumbar pillow is obtained by the personalized lumbar pillow design method described in any one of claims 1 to 6; the lumbar pillow includes a lumbar pillow area, an upper end of the pillow area and a lower end of the pillow area in sequence, and the lumbar pillow is 3D printed, and the material of the 3D printing is a flexible material.

10. The lumbar pillow according to claim 9, characterized in that: The flexible material is selected from any one or more combinations of TPU, nylon plastic, photosensitive resin, silica gel, latex, ABS plastic, PVC plastic, silicone resin and acrylic resin.

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