Historical Development of implants

Introduction

The history of implant materials can be traced to 3000 b.c. when the Incas of Peru used gold and silver to repair trephination defects. Petronius offered an early description of the use of alloplastic materials in 1565 when he described closure of a cranial defect with a gold plate. Over the next 300 years, the use of implants was sporadic and often complicated by infection. The use of synthetic materials as bioimplants did not become widespread until after the 1940s, when advances in biomaterial science led to the development of numerous materials suitable for implantation

Implants are widely used in various clinical disciplines to replace or stabilize organs. The challenge for the future is to apply implant materials to specifically control the biology of the surrounding tissue for repair and regeneration. This field of research is highly interdisciplinary and combines scientists from technical and life sciences disciplines. To successfully apply materials for regenerative processes in the body, the understanding of the mechanisms at the interface between cells or tissues and the artificial material is of critical importance. 

Task

For this WebQuest, your job as a biomedical scientist, is to investigate the historical development of implants to further assist your fellow scientists to improve and develop biomedical devices for the 21st century. 

To demonstrate what you have learned, you will answer the questions included here. You will also design a timeline of the developements of the implants at the end of this webquest

Process

Step 1: Choose an implant from the list to investigate

a) Cochlear Implants

b) artifical valves

Step 2: Answer the questions by gathering, researching and processing information from the given sites or from any on the internet

1. Identify which part of the body it is used for

2. Describe the functions of the implants

3. Identify the users of the implant

4. Outline the historical developments of the implants

5. Are there any risks involved with the implant?

6. Has the implant been successful in providing options for maintaining function in humans?

7. Describe any social and ethical issues associated with the implant?

Step 3: Develop a time line of the developments of the implants

** Propose a suitable improvement to your chosen implant or a new idea that you could put forward to your R&D team for further developement!

Useful sites

Cochlear implants

Artifical Limbs

Evaluation

Successful completion of historical timeline with all relevant information

All questions answered from webquest

Conclusion

By the end of this webquest you should have a fair understanding of implants and how scientific research is used to develop such devices to maintain humans as functioing organisms. 

You would have also discovered that science and research has played a vital role in history and with advancements in technology and knowledge, scientists are able to develop biomedical devices and develop sophisticated techniques and treatments. However there are social and ethical issuses as well as environmental issues associated with these devlopments which need to be accounted for.