Shockwave Medical, a medtech company based in California, has developed a technique called intravascular lithotripsy, which involves delivering sonic waves to calcified plaque in an artery in much the same way that sound waves have been used to treat kidney stones for many years. The idea is to safely crack the calcified deposits so that […]
(Read more...)Tag: Cardiac Surgery
Heart Model Simulates Mechanical Load on Cardiac Tissues
Researchers at Carnegie Mellon University, along with collaborators in the Netherlands, have developed a heart model consisting of engineered cardiac muscle tissue that is attached to an elastic material. The design allows the team to mimic the mechanical forces experienced by heart tissue in the body, which should provide them with more accurate d (Read more...)
Battery-Free Wireless Pacemaker Dissolves Post Treatment
Researchers at Northwestern University and collaborators have developed a temporary cardiac pacemaker that dissolves away in the body into harmless byproducts. The technology avoids the need for leads penetrating the skin as well as follow-up procedures to remove a pacemaker. The device could make temporary pacemaker placement a safer and more conv (Read more...)
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...)
PerQseal+ for Large Diameter Arterial Closure: Interview with Andrew Glass, CEO of Vivasure Medical
Vivasure Medical, a medtech company based in Galway, Ireland, has developed the PerQseal device, a synthetic implant designed to seal large bore blood vessel punctures. The implant has utility in a wide variety of transcatheter endovascular procedures, such as transcatheter aortic valve replacement (TAVR), thoracic endovascular aneurysm repair (TEV (Read more...)
Cardiac Organoids Self-Organize to Mimic Human Heart
Researchers at the Austrian Academy of Sciences have developed the most realistic cardiac organoids to date. The tiny structures self-organize from pluripotent stem cells to form a hollow chamber that can beat. The method to create the ‘cardioids’ involves stimulating a variety of signaling pathways in stem cells and does not rely on co (Read more...)
Wireless Sensor Measures Deep Tissue Oxygen Levels
Researchers at the University of California, Berkeley have developed an ultrasound-powered implantable sensor that can measure oxygen levels in tissues deep within the body and transmit these data to an external device. The technology could be useful in monitoring transplant viability or oxygen exposure in preterm infants. It also has potential to (Read more...)
Heart Patch Helps Grow New Vessels Post Myocardial Infarct
Researchers at the Pohang University of Science & Technology (POSTECH) in South Korea have developed a hydrogel patch system that allows for sophisticated sequential release of growth factors that stimulate angiogenesis. The sequential cascade of growth factors mimics the natural process in the body and the researchers hope that the technology (Read more...)
Tendon-Inspired Sutures Protect Fragile Tissues
Researchers at McGill University in Canada have developed bioinspired sutures that mimic the structure of human tendons. The gel-covered sutures are slippery and tough, reducing the damage caused by conventional sutures when used on soft tissues. Interestingly, the gel surface of the sutures may allow for advanced applications such as drug delivery (Read more...)
Lab-Generated Heart Valves Grow Inside Body
Researchers at the University of Minnesota have developed a tissue-engineered heart valve replacement that can grow within a patient. The breakthrough could allow children with congenital heart defects to avoid repeated surgeries to replace heart valves that they have outgrown. To create the valves, the researchers cultured donor cells in a fibrin (Read more...)
Medical Robotics and The Future of Surgery: Interview with Tracy Accardi, VP of R&D at Medtronic
Medtronic has been a key player in the minimally invasive surgery space for the last few decades, and has made great strides more recently in robotic surgery with last year’s acquisition of Digital Surgery. As a quick reference point: despite the many benefits of robotic-assisted surgery (RAS), only 3% of surgeries around the world are [&hell (Read more...)
Fully Implantable LVAD for End-Stage Heart Failure: Interview with Greg S. Aber, CEO of Corvion
Patients with advanced heart failure often need a cardiac transplant due to the severe injuries sustained by the heart muscle. Left Ventricular Assist Devices (LVADs) are frequently used in such patients to help the heart pump blood through the body while they are waiting for a transplant. These devices are also used in the short-term […]
DiamondTemp Ablation System FDA Approved for AFib
Cardiac ablation is the current go-to method for treating most cases of atrial fibrillation (AFib) that are not responsive to medications. While radiofrequency ablation, the most common kind, can be highly effective, the technique often results in damage to cardiac tissue beyond what is intended. This can be a result of poor heat dispersal, overly (Read more...)
Catheter Stimulates Lymphatic Drainage for Heart Failure Treatment: Interview with Eamon Brady, CEO of WhiteSwell
WhiteSwell, a medtech company based in Galway, Ireland, has developed a catheter system to treat acute decompensated heart failure (ADHF). ADHF is often treated using diuretics to remove excess fluid, but this doesn’t work for every patient and can have side-effects. This latest technology consists of a catheter with an impeller pump that is (Read more...)
Endoscopic Surgery Using Steerable Lasers
Applying an energy source, such as a laser, to cut through or cauterize tissue is already widely used in external surgeries, such as laser eye surgery, but using this technology safely and accurately during minimally invasive internal procedures is difficult. Current endoscopic technology does not permit lasers to be steered and manipulated with su (Read more...)
HARPOON System for Mitral Valve Repair: Interview with Daveen Chopra, Edwards Lifesciences
Degenerative mitral regurgitation occurs when the mitral valve prolapses, causing blood to leak back into the atrium every time the heart beats. The condition can be asymptomatic for many people, but for some it can cause a variety of issues, including fainting, pain, and shortness of breath. Currently, open-heart surgery is considered to be the [& (Read more...)
Cios Flow Mobile C-Arm from Siemens FDA Cleared
Siemens Healthineers just announced FDA clearance to introduce its Cios Flow mobile C-arm in the United States. Developed for use in orthopedics, vascular surgery, trauma, spinal surgery, and other fields, it’s intended to be a general purpose C-arm that can be easily used in a variety of cases. The Cios Flow is a relatively compact [… (Read more...)
Dexter Surgical Robot Works with All Laparoscopy Tools
Robotic laparoscopic surgery is now widely available, with Intuitive Surgical’s da Vinci systems being the most common robots out there. These systems typically require specialty tools provided by the robot manufacturer, and the selection is quite limited compared with the wide array of conventional laparoscopic tools that exist. Now, Distalm (Read more...)
CoolSeal for Quick and Safe Vessel Sealing Unveiled
Bolder Surgical, a Louisville, Colorado firm previously called JustRight Surgical, is starting the new year by releasing the CoolSeal vessel sealing platform. The initial product offerings are the CoolSeal Trinity device, a 5mm laparoscopic sealer, and the 3mm CoolSeal Mini, both of which work with the CoolSeal generator. The CoolSeal Trinity (pict (Read more...)
Mitochondrial Transplantation to Treat Ischemia-Reperfusion Injury: Interview with Dr. Alexander Schueller, CEO of cellvie
cellvie, a company based in Houston, Texas, is developing a mitochondrial transplantation therapy to help reduce the damage caused by ischemia-reperfusion injury. The treatment involves delivering isolated mitochondria to cells that are affected by ischemia to help mitigate the dysfunctional metabolism that contributes to cell death in that context (Read more...)