阅读说明：本技术 一种3d打印定制掌指关节智能康复训练器的制作方法 (Manufacturing method of 3D printing customized metacarpophalangeal joint intelligent rehabilitation training device ) 是由 张建鹏 苟马玲 钟凤林 康康诺 夏本华 宗贵升 于 2021-07-30 设计创作，主要内容包括：本发明公开一种3D打印定制掌指关节智能康复训练器的制作方法,包括以下步骤：a、扫描仪对患者手部进行三维扫描并生成手部点云数据；b、通过点云数据进行逆向建模获取掌指关节轮廓曲面模型；c、在掌指关节轮廓曲面模型上设计安装固定接口；d、3D打印掌指关节轮廓曲面模型实体；e、在掌指关节轮廓曲面模型实体的固定接口处安装传动装置。所制得的定制化掌指关节康复训练器与患者手部的匹配性好、密合度高,长时间佩戴也不容易造成局部易形成勒痕；轻量化的镂空设计使患者部位透气及康复；采用3D技术,提高了材料的利用率；可制作更为复杂多孔结构；制作精度高；缩短生产周期,提高生产效率。(The invention discloses a manufacturing method of a 3D printing customized metacarpophalangeal joint intelligent rehabilitation trainer, which comprises the following steps: a. the scanner carries out three-dimensional scanning on the hand of the patient and generates hand point cloud data; b. performing reverse modeling through point cloud data to obtain a metacarpophalangeal joint contour surface model; c. designing and installing a fixed interface on the metacarpophalangeal joint contour curved surface model; d. 3D printing a metacarpophalangeal joint contour curved surface model entity; e. and a transmission device is arranged at a fixed interface of the metacarpophalangeal joint contour curved surface model entity. The prepared customized metacarpophalangeal joint rehabilitation training device has good matching performance with the hand of a patient and high fitting degree, and cannot cause local part to easily form tightening marks after being worn for a long time; the lightweight hollow design enables the patient part to be ventilated and recovered; the 3D technology is adopted, so that the utilization rate of the material is improved; more complex porous structures can be made; the manufacturing precision is high; the production period is shortened, and the production efficiency is improved.)

1. A manufacturing method of a 3D printing customized metacarpophalangeal joint intelligent rehabilitation training device is characterized by comprising the following steps:

a. the scanner carries out three-dimensional scanning on the hand of the patient and generates hand point cloud data;

b. performing reverse modeling through point cloud data to obtain a metacarpophalangeal joint contour surface model;

c. designing and installing a fixed interface on the metacarpophalangeal joint contour curved surface model;

d. 3D printing a metacarpophalangeal joint contour curved surface model entity;

e. and a transmission device is arranged at a fixed interface of the metacarpophalangeal joint contour curved surface model entity.

2. The method for manufacturing a 3D printing customized metacarpophalangeal joint intelligent rehabilitation trainer according to claim 1, wherein the hand point cloud data comprises palm data, wrist data and forearm data.

3. The method for manufacturing the 3D printing customized metacarpophalangeal joint intelligent rehabilitation trainer according to claim 1, wherein the scanner is a medical three-dimensional scanner.

4. The method for manufacturing the 3D printing customized metacarpophalangeal joint intelligent rehabilitation trainer according to claim 1, wherein the step b comprises the following steps:

b1, registering a plurality of point cloud data by using graphic processing software to form a complete model point cloud;

b2, performing surface fitting through the model point cloud to form a curved surface, and converting the curved surface into a metacarpophalangeal joint contour curved surface model entity;

b3, using three-dimensional modeling software to shape the metacarpophalangeal joint contour curved surface model entity.

5. The method for manufacturing the 3D printing customized metacarpophalangeal joint intelligent rehabilitation trainer according to claim 4, wherein the step b further comprises the process of carrying out light weight treatment on metacarpophalangeal joint outlines through three-dimensional modeling software.

6. The manufacturing method of the 3D printing customized metacarpophalangeal joint intelligent rehabilitation trainer according to claim 5, wherein the metacarpophalangeal joint contour lightweight processing comprises hollowing processing.

7. The method for manufacturing the 3D printing customized metacarpophalangeal joint intelligent rehabilitation trainer according to claim 5, wherein the metacarpophalangeal joint contour lightweight processing comprises etching mapping processing.

8. The method for manufacturing the 3D printing customized metacarpophalangeal joint intelligent rehabilitation trainer according to claim 1, wherein the step D is followed by the following steps: and verifying the matching degree of the metacarpophalangeal joint contour curved surface model and the patient part.

9. The method for manufacturing a 3D printing customized metacarpophalangeal joint intelligent rehabilitation trainer according to claim 8, wherein the verification method comprises software verification.

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a manufacturing method of a 3D printing customized metacarpophalangeal joint intelligent rehabilitation training device.

Background

About 300 million hand trauma patients in China each year, and about 200 million children patients with cerebral palsy in China; the personalized rehabilitation assisting device is widely concerned by society as an important component of personalized medical treatment, and an additive manufacturing technology and equipment are important means for realizing the personalized medical treatment and become a leading-edge manufacturing technology for competitive development of various countries. The rehabilitation auxiliary appliance is a product for improving, compensating and replacing human body functions, implementing auxiliary treatment and preventing disability. The rehabilitation aid industry is a new industry including industry aspects such as product manufacturing, configuration service, research and development design, and the like.

The intelligent palm-finger joint rehabilitation trainer provides a new means for hand movement rehabilitation treatment, and is a trainer for treating hand trauma, nerve injury, hand movement dysfunction of cerebral palsy patients and other diseases. The medical unit uses the palm finger rehabilitation robot to carry out finger rehabilitation training, and is only in a starting stage at present. At present, compared with the traditional way of performing limb rehabilitation training by medical personnel, the way of assisting a patient to perform limb rehabilitation training by a medical robot has very obvious advantages, and a better effect is obtained, but some problems still exist, the matching degree of the trainer and the human body is not high, and the wearing comfort level is poor.

Disclosure of Invention

Therefore, the invention provides a manufacturing method of a 3D printing customized metacarpophalangeal joint intelligent rehabilitation trainer, and aims to solve the problem that in the prior art, the trainer is not high in matching degree with a human body, so that the wearing comfort degree is poor.

In order to achieve the above purpose, the invention provides the following technical scheme: a manufacturing method of a 3D printing customized metacarpophalangeal joint intelligent rehabilitation training device comprises the following steps:

a. three-dimensional scanning is carried out on the hand of a patient by using a scanner to obtain hand point cloud data;

b. performing reverse modeling through point cloud data to obtain a metacarpophalangeal joint contour surface model;

c. designing and installing a fixed interface on the metacarpophalangeal joint contour curved surface model;

d. 3D printing a metacarpophalangeal joint contour curved surface model entity;

e. and a transmission device is arranged at the interface of the metacarpophalangeal joint contour curved surface model entity.

Further, the hand point cloud data comprises palm data, wrist joint data and forearm data.

Further, the scanner is a medical three-dimensional scanner.

Further, the step b comprises:

b1, registering a plurality of point cloud data by using graphic processing software to form a complete model point cloud;

b2, performing surface fitting to form a curved surface, and converting the curved surface into a metacarpophalangeal joint contour curved surface model entity;

b3, using three-dimensional modeling software to shape the metacarpophalangeal joint contour curved surface model entity.

Further, the step b also comprises the step of carrying out weight reduction treatment on the metacarpophalangeal joint contour through three-dimensional modeling software.

Further, the metacarpophalangeal joint contour lightweight processing comprises hollow-out processing.

Further, the metacarpophalangeal joint contour lightening treatment comprises etching mapping treatment.

Further, the step d is followed by the following steps: and verifying the matching degree of the metacarpophalangeal joint contour curved surface model and the patient part.

Further, the verification method comprises software verification.

Due to the technical characteristics, the invention has the following advantages: the edges and the curved surfaces of the metacarpophalangeal joint outlines are completely matched with the hands, so that the metacarpophalangeal joint outlines can be tightly attached to the hands, and the wearing comfort and the treatment effect are improved; in the production process, products are generated quantitatively at fixed points, so that the waste of materials is reduced, and the economic benefit is improved; the prepared customized metacarpophalangeal joint rehabilitation training device has good matching performance with the hand of a patient and high fitting degree, and cannot cause local part to easily form tightening marks after being worn for a long time; the lightweight hollow design enables the patient part to be ventilated and recovered; the rehabilitation training comprises four-finger rehabilitation training and thumb rehabilitation training modes, and basically meets the requirements of patients; the 3D technology is adopted, so that the utilization rate of the material is improved; more complex porous structures can be made; the manufacturing precision is high; the production period is shortened, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a flowchart of a manufacturing method of a 3D printing customized metacarpophalangeal joint intelligent rehabilitation training device according to an embodiment of the present invention.

Fig. 2 is a schematic product structure diagram of a manufacturing method of a 3D printing customized metacarpophalangeal joint intelligent rehabilitation training device provided by the embodiment of the invention.

Fig. 3 is a schematic view of a transmission device installation structure in the manufacturing method of the 3D printing customized metacarpophalangeal joint intelligent rehabilitation training device provided by the embodiment of the invention.

Detailed Description

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and the detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The embodiment 1 of the present invention provides a method for manufacturing a 3D printing customized metacarpophalangeal joint intelligent rehabilitation training device, please refer to fig. 1, which includes the following steps:

a. and carrying out three-dimensional scanning on the hand of the patient by using a scanner to obtain hand point cloud data.

Specifically, a medical three-dimensional scanner is adopted to scan the palm, the wrist joint and the forearm of the patient by adopting a scanner, and relevant point cloud data are obtained.

b. And performing reverse modeling through the point cloud data to obtain a metacarpophalangeal joint contour surface model.

Specifically, b1, registering a plurality of point cloud data by using graphic processing software, and splicing into a complete model point cloud; b2, performing surface fitting to form a curved surface, and converting the curved surface into a metacarpophalangeal joint contour entity CAD model; and B3, using three-dimensional modeling software to shape the metacarpophalangeal joint contour.

c. Designing and installing a fixed interface on the metacarpophalangeal joint contour curved surface model;

d. 3D printing a metacarpophalangeal joint contour curved surface model entity;

specifically, after 3D scanning and reverse modeling of a patient's hand are performed by a medical scanner, a matched metacarpophalangeal joint contour curved surface model is made, optimization and slicing before printing are performed, a slice file is guided into a 3D printer with set parameters, numerical control motion instructions of an X-Y laser scanner on each layer of powder are generated according to the sliced plane geometric information of each layer of a metacarpophalangeal joint contour entity CAD model, the powder is paved on a forming platform layer by a powder paving machine, the powder is rolled flat and compacted, the thickness of each layer of powder is consistent with the slice thickness of the metacarpophalangeal joint contour entity CAD model, each layer of powder is selectively sintered on a substrate by the laser scanner, and after each layer of powder is sintered, the substrate is descended by one layer until printing is completed, and the printing is performed by adopting a material with good biocompatibility, for example: PLA, PA, resin, etc.

e. And a transmission device is arranged at the interface of the metacarpophalangeal joint contour curved surface model entity, and the 3D printing customized metacarpophalangeal joint intelligent rehabilitation training device is manufactured.

In order to better implement the embodiment, step b3 further includes a process of lightening the metacarpophalangeal joint contour through three-dimensional modeling software, as shown in fig. 2, the process of lightening the metacarpophalangeal joint contour includes a hollow-out process to reduce the weight and improve the air permeability.

Preferably, the metacarpophalangeal joint contour lightening treatment comprises etching mapping treatment, so that the interestingness of use is improved.

In order to better implement the embodiment, the following steps are further included after the step d: and verifying the matching degree of the metacarpophalangeal joint contour curved surface model and the patient part, wherein the verification method comprises software verification, and the adopted software comprises Geomagic Control for data comparison and analysis.

Example 2

The installation method of the transmission device in the manufacturing method of the 3D printing customized metacarpophalangeal joint intelligent rehabilitation training device provided by the embodiment comprises the following steps:

referring to fig. 3, a fixing plate 1 is mounted at an interface through a screw, one end of an electric cylinder 2 is hinged to the end of the fixing plate 1, the other end of the electric cylinder is hinged to a transmission rod 3, the transmission rod 3 is rotatably connected with the other end of the fixing plate 1 through a shaft seat, and the other end of the transmission rod 3 is connected with a bionic hand 4.

The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.