Scientists at MISIS University have patented a method for 3D printing a unique three-dimensional frame made of auxetic metamaterials, which can be used for implants, prostheses and intervertebral cages in the medicine of the future, the university’s press service reported.
Auxetics are a special class of metamaterials that behave in unusual ways when they are stretched or compressed. Instead of expanding in all directions, they compress laterally. For example, when stretched, an elastic band becomes longer, but at the same time thinner in width. This occurs because the material has a negative Poisson’s ratio. Medical applications of auxetics include prosthetics, orthotics, ergonomic devices, performance enhancement devices, in vitro medical devices for cell interaction, and advanced medical clinical products.
“Auxetic metamaterials, due to their unusual structure, can be optimal for the stresses experienced by the human body. Such structures can effectively absorb shock and vibration, reducing the risk of damage to bones and joints. “Honeycomb-based auxetics are suitable for use in products such as scaffolds, bone implants, cages, and rotating geometry auxetics are better for flexible medical devices such as stents, musculocutaneous patches or soft tissue scaffolds,” said the co-author of the patent. , Director of the Research Center for Biomedical Engineering, NUST MISIS Fedor Senatov.
To replace the classic porous structures used in bone grafts, honeycomb-based auxetics are the most promising. According to clinical studies, in 12% of cases, spinal cages migrate after implantation, and in 5% they are completely destroyed under load, since the intervertebral discs act as a shock absorber of mechanical stress, providing a certain angle of flexion, twisting and rotation between adjacent vertebrae. The geometry that forms auxetic metamaterials plays an important role in varying cage properties, potentially reducing the stress shielding effect and increasing product life.
Scientist NUST MISIS Vladislav Lvov improved a commercially available interbody cage by introducing an auxetic metamaterial structure into the volume of the product. The cage itself was produced using 3D printing with titanium alloy Ti-6Al-4V powder. It can be an excellent base for intervertebral cages, support areas of damaged spine and promote bone growth in the treatment of degenerative disc disease.
Tel Aviv Medical Center Sourasky was the first in the world to introduce a chatbot with artificial intelligence (AI) into the patient triage procedure. The hospital uses a clinical admission system created by the Israeli startup Kahun, reports evercare.ru.
The pilot is taking place in the emergency department (1.8 million visits per year). In the process of communicating with patients, the chatbot collects anamnesis and transmits information to doctors. According to the developers, the system will make it possible to more efficiently and quickly assess the patient’s condition, offer diagnostic recommendations and next steps in treatment, eliminating routine and preventing burnout of specialists.
Starting September 1, the United States will begin to fine developers of a medical information exchange system for blocking patient data. The Department of Health and Human Services (HHS) will prioritize high-impact cases where the shutdown has negatively impacted the quality of care or harmed federal health care programs. A similar rule for health care providers is in the works.
Patients should have access to all of their health information, regardless of where they received care, and share it with their health care providers. Blocking data that prevents third parties from viewing the data can negatively impact the quality of care and lead to adverse patient outcomes. The law allows information to be blocked to protect the security or privacy of citizens. In other cases this is prohibited.
Cases of blocking include charging patients for obtaining medical information and delaying the provision of data.
Specialists from the Engineering Center of Samara State Medical University and the Main Military Clinical Hospital named after. acad. N.N. Burdenko developed a device for removing fragments from a patient’s body using an electromagnet. It operates under the control of the first Russian surgical navigation system AUTOPLAN.
By loading CT and MRI results into AUTOPLAN, you can combine them with a 3D model of the patient’s anatomical structure and determine the location of metal fragments with high accuracy. Specialists of the hospital named after. Burdenko proposed the concept of the technology: an electromagnetic device with the help of which detected metal fragments, under the control of a navigation system, will be removed from the body without the use of medical instruments.
This method allows military doctors not to resort to open surgery and calculate the size of the required holes depending on the size of the fragments. The combined use of a surgical magnet and the AUTOPLAN system will significantly reduce the trauma of surgical interventions in patients with shrapnel wounds by increasing the accuracy of the intervention and understanding the shape of the foreign body, and thereby speed up the process of postoperative recovery of patients.
Nearly a third (27%) of Americans who had negative views of telemedicine changed their minds after using it. Moreover, 90% of them are now ready to recommend remote medical consultations to those who have not yet tried them. These are the findings of a survey of 1,007 US citizens conducted by the insurance company Assurance.
This trend in perception of telemedicine was practically independent of age. More than half (62%) of respondents said that the availability of remote consultations increases the likelihood of receiving medical care. Otherwise, they would postpone visiting the doctor. At the same time, 44% believe that telemedicine appointments are less effective.
However, 75% of respondents believe that telemedicine visits should be cheaper than in-person visits (by an average of 25%), and 30% say they save money by using remote medical consultations instead of visiting a doctor.