Tag: surgery

New Hydrogel Material for Vocal Cord Repair

Researchers at McGill University developed a tough hydrogel that can resist mechanical forces found in the body. However, the material still provides a friendly environment for encapsulated cells to grow and enables the deep perfusion of blood and other tissue fluids. The injectable biomaterial may be useful in repairing tissues that experience con (Read more...)

Catheter-Deliverable Biomaterial Sealants: Interview with Natalie Artzi, Co-founder of BioDevek

BioDevek, a medtech company based in Cambridge, Massachusetts, has developed a biomaterial adhesive that acts to seal internal wounds and incisions. The material is designed to be sprayed through a catheter, and the primary application for the technology so far is to act as a sealant following colonic polyp resection. At present, following polyp re (Read more...)

3D Blood Vessel Map Reveals Location of Stem Cells

Scientists at Johns Hopkins used a combination of molecular labeling and imaging techniques to create a three-dimensional map of the blood vessels in the mouse skull. Their approach also reveals niches where stem cell populations lurk, which could help researchers to understand how blood vessels and cells behave in various states of disease or inju (Read more...)

Voxel-Based Technique to Streamline Bioprinting

At the University of Virginia researchers developed a new bioprinting technique based on voxels. Voxels are 3D cubes that form basic building blocks in computer graphics, similar to what pixels are for 2D, and have been popularized by games such as Minecraft. The new technique involves printing discrete spherical blobs of bioink (as the voxels) [&h (Read more...)

Simple Color Change Test Identifies Wound Infections

Researchers at the University of Bath in the UK, along with outside collaborators, have developed a simple color change test that rapidly indicates whether a wound is infected with harmful bacteria. The test works by detecting virulence factors released by the bacteria, which prompt a simple color change in a solution. The test could help [… (Read more...)

Microneedle Patch Delivers Oxygen to Chronic Wounds

A team of scientists at Purdue University created a microneedle patch that can deliver oxygen and bactericidal agents to chronic wounds. The bacterial biofilms that form over non-healing wounds, such as foot ulcers, are a formidable barrier to successful treatment. Such wounds are typically hypoxic and the bacteria within them are shielded from ant (Read more...)

Handheld Photoacoustic Device for Lymph Node Assessment

Researchers at Pohang University of Science & Technology in South Korea have developed a handheld photoacoustic device that can locate sentinel lymph nodes near the armpit. The technology could help clinicians to locate the correct lymph node from which to take a biopsy when checking for breast cancer metastases. At present, this process involv (Read more...)

Levita Robotic Platform: Interview with Alberto Rodriguez-Navarro, CEO of Levita Magnetics

Levita Magnetics, a California-based company that specializes in laparoscopic systems, has recently announced that its Levita Robotic Platform, a surgical robot that is still in development, has been used to perform surgery on a patient for the first time in a hospital in Chile. The robot uses similar magnetic technology as in the company’s h (Read more...)

Mobility-Enabled Compression Device for Lymphedema: Interview with CEO of Koya Medical

Koya Medical, a medtech company based in California, has developed the Dayspring active compression system for the treatment of lymphedema. The company received FDA clearance for the use of Dayspring on the upper extremities in June 2020, and just recently announced 510(k) clearance for use in the lower extremities. Lymphedema involves impaired lym (Read more...)

Optical Fiber Imaging for Next-Generation Endoscopes

Researchers at the University of Exeter in England have developed a technique to image tissues through an ultrathin optical fiber, potentially allowing for high-resolution imaging of single cells within the body. The optical fibers are as thin as a human hair, and could lead to tiny endoscopes that can be inserted into human tissues to […]

Spray-On Hydrogel to Prevent Post-Surgery Adhesions

Researchers at University of California San Diego have developed a spray-on hydrogel that forms a protective coating on tissue surfaces, such as the surface of the heart. The new material is intended to prevent the formation of adhesions, where tissues inside the body adhere together abnormally following a surgical procedure. The crosslinked gel pe (Read more...)

Highly Maneuverable Magnetically Controlled Miniature Robots

Researchers at Nanyang Technological University, Singapore have developed miniature robots that are highly maneuverable, and can rapidly move in six degrees of freedom. These tiny devices are magnetic and can be controlled using an electromagnetic coil system that precisely manipulates the direction and strength of magnetic fields. The researchers (Read more...)

Reverse 3D Printing to Make Tiny Medical Implants

Researchers at RMIT University in Australia have developed a new 3D printing technique that allows them to create incredibly small and complex biomedical implants. The approach involves printing glue molds that can then be filled with biomaterial filler. Once the mold is dissolved away, the biomaterial structure remains. Excitingly, the technique u (Read more...)

Hydrogel Wound Treatment Kills Antibiotic Resistant Bacteria

Researchers at Chalmers University of Technology in Sweden have developed an antibacterial hydrogel that can kill antibiotic-resistant bacteria. The material is conceived as a wound dressing, and is composed of antimicrobial peptides which are naturally produced by the immune system. The gel binds the peptides together and protects them, yet allows (Read more...)