检索结果-南通市图书馆

Piezoelectric-Based Smart bone plate for Fracture Healing Progress Monitoring

Journal of Shanghai Jiaotong university(Science) 2022年第4期27卷 561-569页

作者：高梓航王鑫赵一帆金哲慧王刚高硕 School of Instrumentation Science and Optoelectronic Engineering Beihang UniversityBeijing100083China Beijing Advanced Innovation Center for Big Data-Based Precision Medicine Interdisciplinary Innovation Institute of Medicine and EngineeringBeihang UniversityBeijing100083China

Fracture healing progress monitoring techniques attract global research attention due to the importance of selecting the timing of removing the fixation device.To this end,in this research,we present a piezoelectric-based smart internal fixation device,in which a piezoelectric sandwich structure is laminated to the surface of a bone plate.In the content,we explain the reasons for utilizing piezoelectric films,elaborate the mechanism of fracture monitoring,and introduce the mechanical parameters of the sensor.The simulation and experimental results show that the electrical output of the device is associated with the elastic modulus of the filler between the tested broken bones when the working load is maintained,indicating that the bone recovery progress could be successfully detected by the developed technique.

关键词： piezoelectric device bone plate fracture healing monitoring Internet of Health Things

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Stress-relaxation plates and the remodeling of callus and cortex under the plate in rabbits

引用

Chinese Medical Journal 2000年第9期113卷 37-41页

作者：张先龙鲍琨戴尅戎 Department of Orthopaedic Surgery Shanghai Sixth People’s Hospital Department of Orthopaedic Surgery Ninth People’s HospitalShanghai Second Medical University

To study the influence of a stress-relaxation plate on the remodeling of callus and cortex under the plate Methods The bilateral tibia diaphysis of New Zealand rabbit were osteotomized and fixed with stress-relaxation plate (SRP) and rigid plate (RP), respectively Polarized light microscopy and transmission electron microscopy (TEM) were used to study the remodeling of callus and the cortex under the plate from 4 to 24 weeks postoperatively Results Polarized light microscopy: the structural changes of callus and cortex beneath the plate are similar in the SRP and RP groups at the early postoperative stage, manifesting an alignment disorder of collagen fibers with a weak birefringence in the callus and absorption cavities in the cortex under the plate After the twelveth postoperative week, the SRP group showed callus starting to transform to lamellar bone and absorption cavities in the cortex under the plate becaming smaller By contrast in the RP group the absorption cavities in the callus and cortex under the plate became larger and the whole layer of cortex was cancellated TEM: the active osteoclasts appeared in both SRP and RP groups in the period from 4 to 8 weeks postoperatively In the SRP group, many functionally active osteoblasts could be seen on the surface of the bone, while in the RP group, the osteoblasts were not very active By 24 weeks postoperatively, the shape of osteocytes were normal but the number of the osteoclasts were small in the SRP group In the RP group, the osteoclasts became more active and osteocytic osteolysis was manifested Conclusions Fixation with SRP not only enhanced callus remodeling, but also abated the degree of osteoporosis in the cortex under the plate This approach may lead to an improved osteosynthetic apparatus

关键词： bone plate internal fixation fracture healing bone remodeling

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A mechanical study of personalised Ti6Al4V tibial fracture fixation plates with grooved surface by finite element analysis

引用

Biosurface and Biotribology 2021年第3期7卷 142-153页

作者： Bo Liao Jipeng Sun Cheng Xu Rufeng Xia Wei Li Dong Lu Zhongmin Jin Key Laboratory for Advanced Technology of Materials of Ministry of Education Tribology Research InstituteSouthwest Jiaotong UniversityChengduChina Chengdu Advanced Metal Materials Industry Technology Research Institute ChengduChina

Low shape matching and high stress shielding rates between bone plate and human bone are not conducive to the primary healing of fracture.In this study,taking the fracture site of the lower one‐third of human tibia as an application case,six types of personalised Ti6Al4V tibial plates with grooved surface were designed and evaluated by reverse en-gineering and finite element analysis.The results showed that the grooved design can reduce the stress shielding rate of bone plate and promote the facture healing.Among the six types of bone plates,the‘OUT-MI’bone plate has the lowest stress shielding rate and the most uniform stress distribution.Meanwhile,with the increasing tibial load during the convalescence,the average stress and maximum axial displacement of the tibial fracture surface increased,which can effectively improve the bone regeneration in the tibial fracture area.Moreover,there was no significant difference in four-point bending performance between the‘OUT-MI’bone plate and the‘STR-BE’bone plate,indicating that the mechanical properties of this bone plate were reliable.The results provide a theoretical basis for the design of fracture fixation plates on clinical treatment.

关键词： bone plate finite element analysis four-point bending grooved surface personalised design stress shielding

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Study on plate Washer Sewage Treatment

Study on Plate Washer Sewage Treatment

引用

International Conference on Electrical Information and Mechatronics(ICEIM2012)

作者： LIU Ning LI Yan SUN Wan-jie School of Information and Mechanical Engineering Beijing Institute of Graphic Communication

To study the plate washer sewage treatment, the mature theories and structures in other sectors were introduced the printing industry. plate washer is a kind of printing auxiliary equipment, mainly us

ISBN: (纸本)9783037856901

关键词： plate washer Filter system Distillation system Sewage treatment sewage treatment system grommets plate cleaner sewage treatment plate bone plate plateS plates Distillation distilling AUTOMATIC

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：