scholarly journals 3D-printed adaptive acoustic lens as a disruptive technology for transcranial ultrasound therapy using single-element transducers

2018 ◽  
Vol 63 (2) ◽  
pp. 025026 ◽  
Author(s):  
Guillaume Maimbourg ◽  
Alexandre Houdouin ◽  
Thomas Deffieux ◽  
Mickael Tanter ◽  
Jean-François Aubry
Keyword(s):  
Transcranial Ultrasound ◽  
Disruptive Technology ◽  
Ultrasound Therapy ◽  
Single Element ◽  
Acoustic Lens ◽  
3D Printed

3D Printing in Healthcare

2021 ◽  
pp. 696-703
Author(s):  
Nilmini Wickramasinghe
Keyword(s):  
3D Printing ◽  
Personalized Medicine ◽  
Healthcare Delivery ◽  
Healthcare Sector ◽  
Disruptive Technology ◽  
3D Printed ◽  
Average User ◽  
The Way ◽  
Aerospace And Defense

3D printing has developed as a modification of an old injection printer. Today, it is rapidly expanding offering novel possibilities as well as new exciting applications for various sectors including healthcare, automotive, aerospace, and defense industries. This chapter presents key application areas within the healthcare sector. In medicine, 3D printing is revolutionizing the way operations are carried out, disrupting prosthesis and implant markets as well as dentistry. The relatively new field of bioprinting has come to be because of advances with this technology. As will be discussed, numerous applications of 3D printing in healthcare relate to personalized medicine. For instance, implants or prostheses are 3D printed for a specific user's body, optimizing the technology to work for an individual, not an average user as with most mass-produced products. In addition, 3D printing has applications on the nanoscale with printing of drugs and other smaller items. Hence, 3D printing represents a disruptive technology for healthcare delivery.

Non-invasive transcranial ultrasound therapy guided by CT-scans

2006 ◽  
Author(s):  
Fabrice Marquet ◽  
Mathieu Pernot ◽  
Jean-Francois Aubry ◽  
Gabriel Montaldo ◽  
Mickael Tanter ◽  
...  
Keyword(s):  
Ct Scans ◽  
Transcranial Ultrasound ◽  
Ultrasound Therapy ◽  
Non Invasive

scholarly journals A 3D-printed passive ultrasound phase-interference compensator for reduced wave degradation in cancellous bone – an experimental study in replica models

2018 ◽  
Vol 9 ◽  
pp. 204173141876641 ◽  
Author(s):  
Christian M Langton ◽  
Saeed M AlQahtani ◽  
Marie-Luise Wille
Keyword(s):  
Transit Time ◽  
Cancellous Bone ◽  
Broadband Ultrasound Attenuation ◽  
Quantitative Measure ◽  
Ultrasound Transducer ◽  
Single Element ◽  
Ultrasound Wave ◽  
Additional Material ◽  
Phase Interference ◽  
3D Printed

The current ‘active’ solution to overcome the impediment of ultrasound wave degradation associated with transit-time variation in complex tissue structures, such as the skull, is to vary the transmission delay of ultrasound pulses from individual transducer elements. This article considers a novel ‘passive’ solution in which constant transit time is achieved by propagating through an additional material layer positioned between the ultrasound transducer and the test sample. To test the concept, replica models based on four cancellous bone natural tissue samples and their corresponding passive ultrasound phase-interference compensator were 3D-printed. Normalised broadband ultrasound attenuation was used as a quantitative measure of wave degradation, performed in transmission mode at a frequency of 1 MHz and yielding a reduction ranging from 57% to 74% when the ultrasound phase-interference compensator was incorporated. It is suggested that the passive compensator offers a broad utility and, hence, it may be applied to any ultrasound transducer, of any complexity (single element or array), frequency and dimension.

Non-invasive transcranial ultrasound therapy based on a 3D CT scan: protocol validation andin vitroresults

2009 ◽  
Vol 54 (9) ◽  
pp. 2597-2613 ◽  
Author(s):  
F Marquet ◽  
M Pernot ◽  
J-F Aubry ◽  
G Montaldo ◽  
L Marsac ◽  
...  
Keyword(s):  
Ct Scan ◽  
Transcranial Ultrasound ◽  
Ultrasound Therapy ◽  
3D Ct ◽  
Non Invasive ◽  
Protocol Validation ◽  
3D Ct Scan ◽  
Scan Protocol

Patient-Specific Stereotactic Frame for Transcranial Ultrasound Therapy

2021 ◽  
Author(s):  
Jiro Kusunose ◽  
William Rodriguez ◽  
Huiwen Luo ◽  
Thomas Manuel ◽  
M. Anthony Phipps ◽  
...  
Keyword(s):  
Transcranial Ultrasound ◽  
Patient Specific ◽  
Ultrasound Therapy ◽  
Stereotactic Frame

Non-invasive transcranial ultrasound therapy guided by CT-scans

2006 ◽  
Author(s):  
Fabrice Marquet ◽  
Mathieu Pernot ◽  
Jean-Francois Aubry ◽  
Gabriel Montaldo ◽  
Mickael Tanter ◽  
...  
Keyword(s):  
Ct Scans ◽  
Transcranial Ultrasound ◽  
Ultrasound Therapy ◽  
Non Invasive

Simultaneous Ultrasound Therapy and Monitoring of Microbubble-Seeded Acoustic Cavitation Using a Single-Element Transducer

2017 ◽  
Vol 64 (8) ◽  
pp. 1234-1244 ◽  
Author(s):  
Sophie V. Heymans ◽  
Christine F. Martindale ◽  
Andrej Suler ◽  
Antonios N. Pouliopoulos ◽  
Robert J. Dickinson ◽  
...  
Keyword(s):  
Acoustic Cavitation ◽  
Ultrasound Therapy ◽  
Single Element

scholarly journals Effect of Printing Parameters of 3D Printed PLA Parts on Mechanical Properties

2021 ◽  
Author(s):  
Jayakumar N ◽  
◽  
Senthilkumar G ◽  
Pradeep A D ◽  
◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Design Method ◽  
Consumer Electronics ◽  
Disruptive Technology ◽  
Mean Values ◽  
Good Surface ◽  
3D Printed ◽  
Nozzle Temperature ◽  
The Way

Additive manufacturing significantly reduces the lead time of the product development cycle in the way of design trials and thus reduces delivery time to the market. The essence has been understood by many sectors including, education, manufacturing industries, automotive, medical, aerospace, consumer electronics, bio-medical and even fashion enthusiasts. It is used to prepare this PLA for the used plastics and landfills. By this way, it can reduce the plastics waste from the earth. Compare with ABS plastics, PLA plastics are cheaper. This disruptive technology going to the change the way of manufacturing goods and sets a new narrow path to the future industries. During usage of filament material, it’s got failure due to not enough quality printing because of not proper process parameters. Also, the printed part does not have good surface quality. So, the PLA material requires improved mechanical properties. The objective of this study is to create 3D printed parts with good quality with the optimized process parameters.The selected process parameters are infill density (%), Nozzle temperature (º) and print orientation. Taguchi orthogonal array (L9) design method has been chosen for generating design of experiments. The samples are produced according to its ASTM standards. The specimens were tested for identifying the mechanical properties like tensile strength, compression strength and impact strength. From the results obtained from the tests, taking the mean values and conclude the better infill density, orientation and the nozzle temperature the PLA.

3D Printed Quick Healing Cast: The Exoskeletal Immobilizer

2017 ◽  
Author(s):  
Sriram Sankar ◽  
Jithu Paulose ◽  
Nirmal Thomas
Keyword(s):  
Healing Time ◽  
The Body ◽  
Ultrasound Therapy ◽  
Electrical Stimulation Therapy ◽  
Anatomical Structures ◽  
Broken Bones ◽  
The People ◽  
Wide Range ◽  
3D Printed ◽  
Plaster Casts

A cast is used to encase a limb or part of the body to stabilize and hold anatomical structures in place to allow healing of broken bones and ligament tears by promoting immobilization. Conventional orthopedic casts have been made out of Plaster of Paris or fiberglass since ages. The traditional plaster casts have a wide range of problems that have been long since evaded due to the lack of a better alternative. Ever since the advent of additive manufacturing, many remarkable things have been made possible by the technology of 3D printing. The Exoskeletal Immobilizer is a custom 3D printed orthopedic cast that is well ventilated, light weighted, aesthetically pleasing and anatomically accurate. Even though printing the immobilizer on spot takes a little longer than the conventional cast, its countless benefits make up for the waiting time. It is extremely logical and useful for the ones suffering from cerebral palsy, who are forced to wear casts for their entire life. This project is not just another profit making business idea but is the cornerstone that is being laid to serve the people better and lead humanity into the next phase of medical advancement. By integrating parts of physiotherapy, eastern medicine, orthopedics and latest technologies, the Immobilizer promises a speedy recovery. The possibility of performing ultrasound therapy, electrical stimulation therapy, chromotherapy, cryotherapy and acupuncture therapy during the immobilization period reduces the healing time at least by about 40% [4] and eases discomfort of the patients. The features imparted to the cast have been specially handpicked and researched to provide a safe overlap of post immobilization treatment and the immobilization period to facilitate faster healing. The Exoskeletal Immobilizer can not only heal the fracture or a tear faster but can also keep the patient comfortable during the treatment.

Sign in / Sign up

Export Citation Format

Share Document