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A patent has been issued for a catheter with an expandable lumen, designed to improve fluid flow rates in medical procedures such as dialysis. The catheter includes a longitudinal slit that expands to create an additional lumen for accommodating a guidewire or stylet. The patent, filed by Mozarc Medical US LLC, aims to address the need for catheters with improved flow rates while maintaining functionality. [Extracted from the article]

A patent application by inventors from Salt Lake City, UT, and Kaysville, UT, has been made available online for an imaging system and method aimed at assessing and monitoring vascular access devices. The system integrates imaging devices to evaluate the status of indwelling vascular access devices, reducing complications and improving patient care. The application outlines a securement platform with features such as a vascular access device pocket, catheter insertion site window, and imaging device pocket for this purpose. The system also includes an artificial intelligence engine for depth detection and monitoring devices for displaying image content. [Extracted from the article]

A recent study conducted at Auburn University focused on assessing microvascular reactivity in anesthetized cats. The study involved 12 healthy adult cats and found that microvascular reactivity decreased significantly after hemorrhage and remained below baseline after an isotonic crystalloid bolus was administered. The researchers concluded that while the assessment of microvascular reactivity in cats is feasible, further validation is needed before clinical application. For more information, readers can refer to the article "Microvascular reactivity in anesthetized cats: feasibility and proof of concept study" in the American Journal of Veterinary Research. [Extracted from the article]

A patent application by inventors from various locations describes a Loco-Regional Perfusion System for delivering drugs to isolated organs or tumors during a patient's beating heart. The system involves catheters, an oxygenator, and a pump to create a closed circuit for targeted drug delivery. This method could have applications in cancer treatment and Alzheimer's therapy, offering a more precise and effective approach to drug delivery. [Extracted from the article]

Researchers at Besancon University Hospital in France conducted a study on mechanical thrombectomy for acute ischemic stroke, focusing on the optimal size of aspiration catheters in relation to arterial diameter. They found that a higher diameter ratio between the catheter and the occluded artery was associated with a higher rate of successful recanalization. The study suggests that selecting aspiration catheters based on this ratio could increase the success rate of mechanical thrombectomy procedures. Further research is recommended to specify the optimal ratio. [Extracted from the article]

A recent report from Leeds Teaching Hospitals NHS Trust in the United Kingdom focuses on the importance of cardiac output monitoring in critically ill children. The research highlights the benefits of non-invasive techniques for monitoring cardiac output, which can improve clinical outcomes without the risks associated with invasive methods. The study also suggests that technologies like near-infrared spectroscopy and photoplethysmography may be valuable tools for assessing perfusion in the future. This peer-reviewed research provides valuable insights into pediatric cardiology and healthcare practices. [Extracted from the article]

A study conducted in Toronto, Canada, focused on vascular access devices and associated complications in pediatric critical care units. The research found that 21% of devices and 25% of lumens experienced complications, with varying durations before complications arose. The study highlighted the need for further investigation into the implications of fluid administration to maintain device function and strategies to limit complications in children. [Extracted from the article]

The patent application titled "Collecting And Connecting Vascular Access Data Throughout The Continuity Of Care" by inventors Burkholz and Prince focuses on systems and methods for storing and accessing historic and additional vascular access data to improve patient care. The application highlights the importance of collecting and connecting vascular access data to enhance clinician success in managing vascular access. The method involves storing historic data, presenting it during access, collecting additional data, and processing it to generate alerts or reports, ultimately aiming to improve the continuity of care for vascular access. [Extracted from the article]

A recent study from Michigan State University explores the role of the 5-HT7 receptor in regulating blood flow in skeletal muscle during heart failure. The research suggests that the 5-HT7 receptor plays a significant role in circulatory regulation and may impact exercise intolerance associated with heart failure. The findings highlight the importance of serotonin in normal and pathophysiological circulation control. For more information, refer to Abstract 58: The 5-HT7 receptor contributes to increased hindquarter blood flow caused by skeletal muscle contraction in the journal Hypertension. [Extracted from the article]

A recent study conducted at Purdue University in West Lafayette, Indiana, aimed to compare the efficacy of ultrasonic Doppler-guided technique (UDGT) versus traditional palpation-guided technique (TPT) for feline dorsal pedal arterial catheterization. The research found that there was no significant difference in the success rate or time taken for catheter placement between the two techniques. Complications such as self-limiting bruising and hematoma formation were observed equally in both groups. The study concluded that few complications were associated with arterial catheterization. [Extracted from the article]

A report from Baylor University College of Medicine discusses the management of neonatal and infant aortic thrombosis, a rare but life-threatening condition. The study describes the experience and approach to managing 11 infants with occlusive or nearly occlusive aortic thrombosis. The researchers observed partial thrombus resolution in all patients, but there were complications related to the management, including minor bleeding in two children receiving thrombolytic therapy and two major bleeding events in children receiving anticoagulation alone. The study concludes that thrombolysis and thrombectomy should be considered in managing neonatal/infant aortic thrombosis. [Extracted from the article]

A patent has been issued for a hemodialysis catheter with corrugated tips. The catheter is designed to prevent blockage of the hemodialysis lumens and blood recirculation openings. It includes an elongated body with two distal end regions that terminate in tips opened to lumens. The tips have corrugated configurations with grooves and ridges to facilitate fluid flow. The invention aims to improve the effectiveness of hemodialysis catheters and address the limitations of existing designs. The patent was filed by inventor Michael G. Tal and assigned to Pristine Access Technologies Ltd. [Extracted from the article]

A patent application titled "Indwelling Sensing Probe For Vascular Sensing And Related Systems And Methods" has been published online. The inventor, Jonathan Karl Burkholz, has developed a vascular access system that addresses the drawbacks of current arterial catheter systems. The system includes an introducer needle and a sensing probe, with the probe remaining in the patient's vein or artery for continuous vascular sensing. The sensing probe can measure various physiological and hemodynamic parameters, and the system also includes features such as a wireless adapter and a protective tube. The patent application provides detailed descriptions of the system and its components, as well as methods for venous or arterial sensing. [Extracted from the article]

A study conducted at Lucile Packard Children's Hospital Stanford in Palo Alto, California, examined the agreement between noninvasive oscillometric blood pressure (NIBP) and invasive intra-arterial blood pressure (ABP) in children with ruptured brain arteriovenous malformations (bAVMs). The researchers found that there was good agreement between ABP and NIBP, particularly in non-hypertensive ranges and with radial arterial catheters. However, there was divergence in hypertension. The study suggests that further research is needed to define age-based thresholds, validate methods of blood pressure measurement, and determine the effect of blood pressure reduction on outcomes in these children. [Extracted from the article]

A clinical trial, NCT06506799, has been launched to determine the effect of training given to intensive care nurses on their knowledge level, attitudes, and practices regarding the use of physical restraints. Physical restraint is a practice used to protect patients in the intensive care unit from harming themselves or others. However, it can lead to various physical, psychological, ethical, legal, and moral problems. The trial aims to evaluate nurses' knowledge on this subject, identify deficiencies, and provide training to improve the quality of care and ensure patient safety. [Extracted from the article]

A patent application by NXT Biomedical LLC has been made available online for a device and method to reduce pulmonary blood pressure and other conditions of elevated blood pressure. The invention involves creating a shunt between two vessels or lumens within a patient, particularly between a superior vena cava (SVC) and a right pulmonary artery (RPA). The patent application describes various embodiments of catheters and delivery devices that can be used to create the shunt, including devices with RF electrodes, snare loops, perfusion passages, and conductive coils. The invention aims to provide an improved treatment option for reducing pulmonary blood pressure and other related conditions. This patent application describes a method for creating a shunt to treat pulmonary arterial hypertension. The method involves positioning a catheter sheath in the superior vena cava, inserting an imaging catheter, imaging the right pulmonary artery, and anchoring the catheter sheath. A puncturing guidewire is then advanced through the catheter sheath and into the right pulmonary artery, followed by the expansion of a shunt support structure to create a shunt passage. The patent application also includes various combinations and methods of use for these embodiments. [Extracted from the article]

A study conducted at Rhode Island Hospital compared three different arterial line procedures for hemodynamic monitoring in cardiac surgical patients. The researchers hypothesized that a 20-G 12.7-cm catheter inserted into the radial artery would be equal to a 20-G 12.7-cm angiocath placed in the brachial artery and superior to a 20-G 5.00 cm angiocath placed in the radial artery. The study found that the long 20-G angiocath placed in the radial artery provided benefits in hemodynamic monitoring. The research was published in the Journal of Cardiothoracic and Vascular Anesthesia. [Extracted from the article]

A patent application has been submitted for a catheter system that aims to improve arterial catheterization procedures. The system is designed to reduce blood leakage during insertion and make it easier to use with a probe or catheter advancement device. It includes a catheter assembly with a catheter adapter, a side port, and a catheter, as well as extension tubes and an access connector. The system also features a needle assembly with safety mechanisms and a guidewire advancement device. Overall, the catheter system aims to provide near-patient access for more accurate measurements and improved instrument delivery. The patent application provides further details and claims. [Extracted from the article]

A patent application has been made available online for medical devices that consist of detachable balloon-like implants. The inventors emphasize the need for devices that can effectively and reliably block arteries, veins, leak paths, and biological conduits. These devices should be easy to use, flexible, low profile, and provide immediate and precise occlusion. The patent application describes a compressed balloon-like implant with a wall, interior volume, and openings for fluid passage. An expandable device is used to support and anchor the implant. The inventors aim to overcome the limitations of current occlusion devices and methods. The patent application also includes claims related to the device and its components. [Extracted from the article]

A recent report from Vanderbilt University Medical Center describes a new acute volume overload porcine model for adult Yorkshire pigs and piglets. The study involves the use of general anesthesia, endotracheal intubation, and mechanical ventilation in both age groups of swine. The researchers place catheters in various locations to monitor hemodynamic data during the experiment. The preliminary data from this model has shown significant changes and strong linear regressions between central hemodynamic parameters and acute volume overload in adult pigs, while only pulmonary capillary wedge pressure demonstrated both a linear regression and statistical significance in piglets. The researchers believe that these models can help in the development of age-appropriate therapeutic and monitoring strategies to understand and prevent acute volume overload. [Extracted from the article]

A study conducted by researchers at the Second Hospital of Shandong University aimed to evaluate and summarize the literature on the removal of peripheral arterial catheters in adult patients. The researchers reviewed various sources and collected 17 pieces of strong evidence on dimensions such as removal timing, preparation, procedure, compression time, and key points after removal. The study concluded that standardized procedures and training are necessary to increase the removal standardization rate and reduce clinical complications. The research article is available in BMC Anesthesiology, and additional information can be obtained from the authors. [Extracted from the article]

A recent study conducted at Colorado State University examined the accuracy of the Edwards Acumen IQ system in estimating cardiac output in dogs. The researchers compared the measurements obtained from the Edwards Acumen IQ system to those obtained through thermodilution. The study found that the measurements obtained from the Edwards Acumen IQ system were not accurate and did not produce clinically acceptable results. The researchers concluded that the Edwards Acumen IQ system is not appropriate for clinical use at this time. [Extracted from the article]

A recent study from the University of Queensland describes a successful procedure for removing an embolized umbilical arterial catheter in an extremely premature infant. The procedure involved percutaneous retrieval via a carotid approach, utilizing techniques from other interventions in preterm infants. This case report is significant because it documents the successful retrieval of the catheter in the smallest premature infant reported in the literature to date. For more information, the full article can be accessed for free through the provided link. [Extracted from the article]

A report from the Royal Brisbane and Women's Hospital discusses the use of care bundles to reduce infection in the care of intravascular devices, including peripheral arterial catheters. The research highlights the need for more studies on the use of care bundles specifically for arterial catheters. The available evidence strongly supports the use of care bundles for all intravascular devices, but there is a gap in the evidence for peripheral arterial catheters. Further research is needed to address this gap and improve the care of arterial catheters. [Extracted from the article]

A recent study conducted at the Kanchi Kamakoti CHILDS Trust Hospital in Chennai, India compared the use of normal saline and heparinized saline for maintaining the patency of arterial catheters in children. The study found that normal saline was noninferior to heparinized saline in preventing occlusion of arterial catheters. Additionally, there was no significant difference in the duration of patency between the two groups. The researchers concluded that normal saline could be a safer and cost-effective option for maintaining arterial lines in children. [Extracted from the article]

A patent application for systems, devices, and methods for resuscitation has been filed by inventor Michael D. Laufer. The application describes a technique called selective aortic arch perfusion (SAAP), which provides isolated perfusion of the heart and brain in patients experiencing cardiac arrest. The method involves inserting a catheter into an arterial vessel and positioning it below the vessel supplying blood to the heart and brain. An expandable portion of the catheter is then expanded to prevent blood flow past it, and a substance is infused retrograde into the artery between the heart and the expanded portion of the catheter. The devices and methods described in the application aim to address shortcomings in SAAP treatment and improve resuscitation outcomes. [Extracted from the article]

A recent study conducted at Massachusetts General Hospital has found that point-of-care ultrasound (POCUS) is a valuable tool in pediatric critical care. The research supports the use of POCUS by pediatric intensivists, particularly for procedures such as venous catheter placement and arterial line placement. Additionally, focused cardiac ultrasound can help identify life-threatening cardiac pathology and physiological changes in children with septic shock. The study suggests that a comprehensive POCUS educational program should be implemented for pediatric intensivists, including training in vascular access techniques and focused cardiac examination. [Extracted from the article]

A study conducted by Northwestern University Feinberg School of Medicine explored the factors associated with difficult arterial access and ultrasound use in the operating room for pediatric patients. The researchers analyzed data from a children's hospital and found that multiple attempts at arterial catheter insertion were associated with noncardiac surgeries, neurologic surgeries, orthopedic surgeries, and non-radial artery placement. Ultrasound use was more likely in neonates, infants, toddlers, and children compared to teenagers, and less likely in cardiac surgeries compared to other specialties. The study also identified factors that increased the odds of successful first-attempt arterial catheter insertion and ultrasound use. [Extracted from the article]

The substrate of claim 15, wherein the nanometer scale surface geometry is sufficient to inhibit colonization of bacterial cells on the substrate surface. Accordingly, substrate surfaces of the present invention are useful to reduce the risk of bacterial infection when the substrate is inserted or implanted into an individual. According to certain aspects of the present invention, a method is provided whereby a substrate surface is altered to create a nanometer scale surface roughness, and then the substrate is inserted or implanted into an individual. The substrate of claim 15, wherein the nanometer scale surface geometry is sufficient to inhibit proliferation of bacterial cells on the substrate surface. [Extracted from the article]

"One drawback associated with providing a guidewire lumen within a catheter is that the inclusion of a guidewire lumen effectively reduces the cross-sectional area available to accommodate the remaining lumen or lumens. Typically, double or dual lumen dialysis catheters define an arterial lumen and a venous lumen for simultaneously withdrawing and returning blood from and to the body. Thus, the maximum fluid flow rate in the remaining lumen or lumens of the catheter as compared to a catheter not having a guidewire lumen is reduced. [Extracted from the article]

"Many hemodialysis catheters include multiple lumens, such as dual or triple-lumen catheters. The stylet is movable within the lumen to a position in which the first and second blocking dams are, respectively, proximal and distal to the at least one side opening of the catheter and each of the first and second blocking dams is sealingly engaged with the inner surface of the catheter such that fluid introduced into the lumen, from the passage and through the at least one aperture of the stylet, is directed through the at least one side opening of the catheter. Generally, the lumen through which fluid is withdrawn is referred to as the "arterial" lumen, and the lumen through which fluid is returned is referred to as the "venous" lumen. [Extracted from the article]

According to the news editors, the research concluded: "An ultrasound-guided infraclavicular cannulation of the axillary artery is noninferior to the cannulation of the common femoral artery in terms of procedure success rate. Angiology, Axillary Artery, Catheterization, Femoral Artery, Health and Medicine Keywords: Angiology; Axillary Artery; Catheterization; Femoral Artery; Health and Medicine EN Angiology Axillary Artery Catheterization Femoral Artery Health and Medicine 6314 6314 1 08/21/23 20230826 NES 230826 2023 AUG 25 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Imaging Week -- Researchers detail new data in catheterization. [Extracted from the article]

All patients had a peripheral venous catheter, a central venous catheter and a radial arterial catheter linked to a pulse contour monitoring device. Keywords: Anesthesiology; Diagnostics and Screening; Health and Medicine; Pain Medicine; Surgery EN Anesthesiology Diagnostics and Screening Health and Medicine Pain Medicine Surgery 814 814 1 08/07/23 20230807 NES 230807 2023 AUG 13 (NewsRx) -- By a News Reporter-Staff News Editor at Pain & Central Nervous System Week -- Fresh data on anesthesiology are presented in a new report. [Extracted from the article]

Keywords: Autacoids; Biological Factors; Cardiovascular Diseases and Conditions; Eicosanoids; Epoprostenol; Health and Medicine; Hypertension; Inflammation Mediators; Prostaglandins I EN Autacoids Biological Factors Cardiovascular Diseases and Conditions Eicosanoids Epoprostenol Health and Medicine Hypertension Inflammation Mediators Prostaglandins I 705 705 1 08/07/23 20230807 NES 230807 2023 AUG 7 (NewsRx) -- By a News Reporter-Staff News Editor at Cardiovascular Week -- Research findings on hypertension are discussed in a new report. Autacoids, Biological Factors, Cardiovascular Diseases and Conditions, Eicosanoids, Epoprostenol, Health and Medicine, Hypertension, Inflammation Mediators, Prostaglandins I. [Extracted from the article]

Keywords for this news article include: Cleveland, Ohio, United States, North and Central America, Emerging Technologies, Health and Medicine, Hospitals, Machine Learning, Male Urologic Surgical Procedures, Men's Health, Prostatectomy, Robotics, Robots, Surgery, University Hospital Cleveland. Cleveland, State:Ohio, United States, North and Central America, Emerging Technologies, Health and Medicine, Hospitals, Machine Learning, Male Urologic Surgical Procedures, Men's Health, Prostatectomy, Robotics, Robots, Surgery Keywords: Cleveland; State:Ohio; United States; North and Central America; Emerging Technologies; Health and Medicine; Hospitals; Machine Learning; Male Urologic Surgical Procedures; Men's Health; Prostatectomy; Robotics; Robots; Surgery EN Cleveland State:Ohio United States North and Central America Emerging Technologies Health and Medicine Hospitals Machine Learning Male Urologic Surgical Procedures Men's Health Prostatectomy Robotics Robots Surgery 380 380 1 07/17/23 20230721 NES 230721 2023 JUL 23 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Imaging Week -- A new study on Surgery - Prostatectomy is now available. [Extracted from the article]

The portable circulatory shock detecting device according to claim 9, wherein the monitoring module is configured to execute a spatial-to-frequency domain conversion process for the body surface vibration data to acquire a body surface frequency data, acquire a respiratory frequency data from the body surface frequency data based on a default respiratory frequency, and execute a frequency-to-spatial domain conversion process for the respiratory frequency data to acquire the respiratory motion data. The portable circulatory shock detecting device according to claim 1, wherein the monitoring module is configured to execute a spatial-to-frequency domain conversion process for the body surface vibration data to acquire a body surface frequency data, acquire a heartbeat frequency data based on a default heartbeat frequency from the body surface frequency data, and execute a frequency-to-spatial domain conversion process for the heartbeat frequency data to acquire the heartbeat vibration data. The portable circulatory shock detecting device according to claim 1, wherein the monitoring module is configured to execute a noise-filtering process for the body surface vibration data to generated a filtered body surface vibration data by filtering out a data with an amplitude lower than a noise threshold or a data with a difference from adjacent data values less than a difference threshold, and execute the heartbeat-acquiring process for the filtered body surface vibration data. [Extracted from the article]

Keywords: Critical Care Medicine; Health and Medicine EN Critical Care Medicine Health and Medicine 573 573 1 05/08/23 20230514 NES 230514 2023 MAY 14 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Devices & Surgical Technology Week -- A new study on critical care medicine is now available. The prevalence density of catheter dysfunction was 30.5 of 1,000 catheter days for near the wrist group versus 26.7 of 1,000 catheter days for away the wrist group. [Extracted from the article]

Keywords: Anesthesiology; Clinical Research; Clinical Trial Identifier NCT05799989; Clinical Trials and Studies; Critical Care Medicine; Health and Medicine; Intensive Care Medicine; Pediatrics EN Anesthesiology Clinical Research Clinical Trial Identifier NCT05799989 Clinical Trials and Studies Critical Care Medicine Health and Medicine Intensive Care Medicine Pediatrics 226 226 1 04/17/23 20230417 NES 230417 2023 APR 17 (NewsRx) -- By a News Reporter-Staff News Editor at Clinical Trials Week -- Staff editors report on the newly launched clinical trial, NCT05799989, which has the following summary description: "Insertion of intravenous or intra-arterial catheter is one of the most common procedures in anesthesiology and intensive care medicine. After successful insertion, proper catheter fixation is required to maintain the catheter correct position with the aim to preserve catheter patency, prevent excessive movements of catheter or even iatrogenic catheter extraction/dislocation. After successful insertion, proper catheter fixation is required to maintain the catheter correct position with the aim to preserve catheter patency, prevent excessive movements of catheter or even iatrogenic catheter extraction/dislocation. [Extracted from the article]

For more information on this research see: Intubation, Central Venous Catheter, and Arterial Line Placement In Swine for Translational Research In Abdominal Transplantation Surgery. Keywords: Toronto; Canada; North and Central America; Medical Devices and Surgical Technology; Central Venous Catheter; Critical Care; Health and Medicine; Intubation; Respiratory Medicine; Surgery EN Toronto Canada North and Central America Medical Devices and Surgical Technology Central Venous Catheter Critical Care Health and Medicine Intubation Respiratory Medicine Surgery 146 146 1 04/17/23 20230417 NES 230417 2023 APR 23 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Devices & Surgical Technology Week -- Fresh data on Medical Devices and Surgical Technology are presented in a new report. Toronto, Canada, North and Central America, Medical Devices and Surgical Technology, Central Venous Catheter, Critical Care, Health and Medicine, Intubation, Respiratory Medicine, Surgery. [Extracted from the article]

The medical device of claim 1, wherein the secondary tube comprises an expanded configuration when the medical device is in operation and a collapsed configuration forming the seal when the medical device is not in operation. As a result, inconvenient characteristics of catheters, such as being difficult to thread or insert catheter bodies, add to the treatment time and potential discomfort of therapy provided by the catheter. However, a drawback of implanted medical devices is the risk of infection while the medical device is inserted in the body, and thereafter. [Extracted from the article]

The news reporters obtained a quote from the research from National University of Medical Sciences (NUMS): "Place and Duration of Study: Combined Military Hospital, Rawalpindi Pakistan, from Feb to Aug 2022. Keywords: Health and Medicine EN Health and Medicine 2023 FEB 17 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Imaging Week -- A new study on agriculture is now available. [Extracted from the article]

A catheter assembly includes an elongate catheter member, and a catheter tip. Each opening is in fluid communication with a respective one of the first and second lumens of the catheter tip and with a respective one of the first and second lumens of the elongate catheter member. "In a further embodiment of the present disclosure, the elongate catheter member defines a longitudinal axis and the first and second side openings are spaced a distance along the longitudinal axis from the distal end of the catheter tip. [Extracted from the article]