Types Of Devices Research Articles

Design and application of a new type of switchable semi-closed sputum suction device for transfer

Sputum suction is a necessary measure to remove respiratory secretions and collect sputum specimens, and the traditional sputum suction device includes open and closed methods. However, the open sputum suction device can easily cause sputum splashing during operation, polluting the operator and the surrounding environment. The closed sputum suction device is more expensive than the open sputum suction device. Although it can be used repeatedly, the friction between the protective sleeve and the wall of the suction tube increases after repeated uses, which in turn affects the operation. In addition, the two sputum suction methods need to be connected to a sputum collector when the sputum specimen is collected. This process can easily lead to leakage and contamination of specimens, and at the same time increase the infection risk for patients. In order to overcome the above problems, the medical staff from the department of critical care medicine of the First Affiliated Hospital of Dalian Medical University invented a new type of switchable semi-closed sputum suction device, and obtained the National Utility Model Patent of China (ZL 2020 2 1564712.3). The device is composed of a suction device connection port, a sliding negative pressure switch, an adapter interface, a pipe body, a transparent film protective sleeve, a clip-on connection joint, and a sputum collector. The sliding negative pressure switch at the connection port of the suction device can realize one-person one-handed operation. The sputum collector is connected with the sputum suction device to ensure that the specimen is not exposed. The transparent film protective sleeve covers the sputum suction tube body to ensure that the whole process of sputum suction operation is pollution-free. The clip-on connection joint is connected with the artificial airway interface to avoid sputum splashing during sputum suction, and it is clamped immediately after operation to reduce environmental pollution. Compared with the existing sputum suction device, the new switchable semi-closed sputum suction device has a more reasonable design and lower cost, which is worthy of clinical promotion.

Methods for fungiform papillae assessment: A collaborative study among European research units

Fungiform papillae (FP) are the anatomical structures dedicated to gustatory and somatosensory signal triggering. Whether the density of FP (FPD = FP/cm2) is associated with oral responsiveness is controversial, and the disparity in previous findings may be partially due to the diversity in methods used to quantify FP. The present study aims at mapping methods used to estimate FPD and at tentatively assessing the impact of the main procedure variables in FPD estimation. An on-line survey was specifically developed and launched among the European Sensory Science Society members to collect information on methods and procedure variables and to share datasets on FP counting. Seven European research centres responded to the survey. Manual counting was the most popular methodology, and a merged dataset of 1006 observations was obtained. The type of device used for tongue picture acquisition (low-resolution - LR vs high-resolution - HR) was the main procedure variable. FPD mean values were lower when assessed by LR (35.8) than with HR devices (41.5). Distribution of FPD for LR and HR datasets were similar thus comparisons among studies in which different resolution devices have been used are reliable. Picture modifications and data validation did not significantly affect FPD estimation obtained from HR devices, while both these variables significantly affected FPD values collected with LR devices. Both HR and LR procedures were able to capture the differences in FPD due to age and gender. Overall, measures from HR devices appear the best option to depict the inter-individual variability in FPD. Automated procedures appear underutilised.

Graphene‐Reinforced Hybrid Polymer Nanocomposites‐Based Biosensor Implementation for Environmental Remediation

AbstractBiosensor which is used in wide range of research areas is a type of device which analyzes chemical and biological reactions by responding with electrical output. In this process graphene has become a “miracle material” due to its chemical and physical properties and it is synthesized in this process by native graphite powder (Black Lead) with slight moderation of Hummers method. For membrane formation, PVB (polyvinyle butryl) is used. This copolymer is totally amorphous in nature. An additional, most important eminence of polymer based composite materials is that they can modify chemically to enhance their elasticity biocompatibility and reactivity. The novel nanocomposite membrane can be used for photocatalytic materials for organic pollutant degradation. This experimental study is focused on synthesis and catalytic activity of electrochemical biosensing polymer nanocomposites. In fact, there are many other fields where graphene‐enhanced sensors are on the rise, such as microelectromechanical systems (MEMS) sensors, pressure sensors, pH sensors, environmental contamination sensors, gas sensors, DNA sensors, and more.

SOCIAL ANXIETY IN ONLINE INSTRUCTIONAL DISCUSSION FORUMS: THE ROLE OF PARTICIPATION STYLES AND ICT INFRASTRUCTURE

Examination of the personal characteristics (i.e., gender, participation styles) of participants and the technical infrastructure (i.e., device type, internet connection type) of Instructional Discussion Forums (IDFs) can provide functional clues for mitigating social anxiety in these settings. In this context, this research investigated variances in learners' participation styles and social anxiety in IDFs in terms of gender and ICT availability. In addition, it explored the predictive relationships between participation styles and social anxiety. A sample of 272 freshman undergraduate students discussed various topics related to Internet ethics for three weeks through an IDF. The results indicated that participation styles differed by gender and ICT availability in several respects. First, handheld devices and cellular internet connections exerted a medium-size effect on social anxiety. Further, “to get information” and “to fulfill requirement” purposes in the “Why” dimension of participation styles had a small predictive relationship with social anxiety, as did “analytical” and “practical” participation approaches in the “How” dimension. Of these, only the “to get information” purpose negatively predicted social anxiety. Overall, participation styles accounted for 19.1% of the variance in social anxiety. Based on the findings, future directions and practical implications are suggested for both researchers and practitioners.

Impact of Device Trajectory and Device Type on Compression During Simulated Bone Resorption in a Subtalar Model

Introduction/Purpose: Despite the prevalence of subtalar arthrodesis, certain risk factors (smoking, diabetes) diminish fusion outcomes and are associated with decreased bone healing, leading to increased duration of high stresses at the bone/device interface, ultimately leading to loosening/loss of compression. Existing fixation devices using static engineering materials (i.e., titanium) falter when postoperative bone resorption/joint-settling occurs, justifying improved fixation devices that drive continuous compression in the setting of bone resorption. Devices that leverage superelastic properties of NiTiNOL can provide sustained dynamic compression in the setting of bone resorption, ideally positioning them for these patient populations. Thus, the goal of this study was to characterize the biomechanical response of static and dynamic (NiTiNOL) devices across multiple trajectories in subtalar arthrodesis in the setting of simulated bone resorption. Methods: Compressive forces between synthetic talus and synthetic calcaneus (Sawbones) were measured for two commercially available orthopedic fixation devices (Dynamic = 7.0mm dia. 90mm length, Static = 7.0mm dia; 90mm length, N =6/group) in a custom subtalar fixture. The devices were inserted according to manufacturer instructions (FigA) while maintaining a gap between bone segments using a removable spacer. Two devices were inserted within each group (Dynamic, Static, Static+Dynamic) in either a parallel or diverging trajectory (FigA). Following insertion of devices, the spacer was removed enabling measurement of initial compression (Transducer Techniques). Subsequently, the bones were allowed to move into apposition while continued measurements of compression were collected, enabling determination of resorption capacity (distance) prior to loss of compressive force. Data were analyzed using a two-way ANOVA with Tukey post hoc test (α=.05). Results: The Dynamic group exhibited significantly increased initial load as compared to the Static and Static + Dynamic groups in both the parallel and diverging trajectories (FigB, p=.031). The initial load provided by the first device in the Dynamic group was significantly increased as compared to the Static group (FigB, p=.030). The Dynamic group exhibited a significant increase in initial load upon insertion of the second device (FigB, p Conclusion: Generating and maintaining sufficient compression is requisite for successful subtalar arthrodesis outcomes, especially in the presence of bone resorption. These data illustrate the significant increase in both initial load and resorption capacity of the sustained dynamic compression device (Dynamic) as compared to the Static and Static + Dynamic groups. The addition of a second Dynamic device markedly increased the compression, whereas the use of static devices prevented generation of increased compressive forces. Device trajectory did not significantly impact the arthrodesis construct biomechanical performance. One dynamic screw has better biomechanical performance than two static screws. Figure A) Illustration of guide wire placements prior to device insertion. B) Initial load generated between boney segments. C) Resorption distance prior to loss of compression.

Contextualizing Interpersonal Data Sharing in Smart Homes

A key feature of smart home devices is monitoring the environment and recording data. These devices provide security via motion-detection video alerts, cost-savings via thermostat usage history, and peace of mind via functions like auto-locking doors or water leak detectors. At the same time, the sharing of this information in interpersonal relationships---though necessary---is currently accomplished on an all-or-nothing basis. This can easily lead to oversharing in a multi-user environment. Although prior work has studied people's perceptions of information sharing with vendors or ISPs, the sharing of household data among users who interact personally is less well understood. Interpersonal situations make data sharing much more context-based and, thus, more complicated. In this paper, we use themes from the theory of contextual integrity in an online survey (n=1,992) to study how people perceive data sharing with others in smart homes and inform future designs and research. Our results show that data recipients in a smart home can be reduced to three major groups, and data types matter more than device types. We also found that the types of access control desired by users can vary from scenario to scenario. Depending on whom they are sharing data with and about what data, participants expressed varying levels of comfort when presented with different types of access control (e.g., explicit approval versus time-limited access). Taken together, this provides strong evidence that a more dynamic access control system is needed, and we can design it in a more usable way.

A Hybrid CMOS-Memristor Spiking Neural Network Supporting Multiple Learning Rules.

Artificial intelligence (AI) is changing the way computing is performed to cope with real-world, ill-defined tasks for which traditional algorithms fail. AI requires significant memory access, thus running into the von Neumann bottleneck when implemented in standard computing platforms. In this respect, low-latency energy-efficient in-memory computing can be achieved by exploiting emerging memristive devices, given their ability to emulate synaptic plasticity, which provides a path to design large-scale brain-inspired spiking neural networks (SNNs). Several plasticity rules have been described in the brain and their coexistence in the same network largely expands the computational capabilities of a given circuit. In this work, starting from the electrical characterization and modeling of the memristor device, we propose a neuro-synaptic architecture that co-integrates in a unique platform with a single type of synaptic device to implement two distinct learning rules, namely, the spike-timing-dependent plasticity (STDP) and the Bienenstock-Cooper-Munro (BCM). This architecture, by exploiting the aforementioned learning rules, successfully addressed two different tasks of unsupervised learning.

Deep learning and capsule endoscopy: Automatic multi-brand and multi-device panendoscopic detection of vascular lesions.

Background and study aims Capsule endoscopy (CE) is commonly used as the initial exam for suspected mid-gastrointestinal bleeding after normal upper and lower endoscopy. Although the assessment of the small bowel is the primary focus of CE, detecting upstream or downstream vascular lesions may also be clinically significant. This study aimed to develop and test a convolutional neural network (CNN)-based model for panendoscopic automatic detection of vascular lesions during CE. Patients and methods A multicentric AI model development study was based on 1022 CE exams. Our group used 34655 frames from seven types of CE devices, of which 11091 were considered to have vascular lesions (angiectasia or varices) after triple validation. We divided data into a training and a validation set, and the latter was used to evaluate the model's performance. At the time of division, all frames from a given patient were assigned to the same dataset. Our primary outcome measures were sensitivity, specificity, accuracy, positive predictive value (PPV), negative predictive value (NPV), and an area under the precision-recall curve (AUC-PR). Results Sensitivity and specificity were 86.4% and 98.3%, respectively. PPV was 95.2%, while the NPV was 95.0%. Overall accuracy was 95.0%. The AUC-PR value was 0.96. The CNN processed 115 frames per second. Conclusions This is the first proof-of-concept artificial intelligence deep learning model developed for pan-endoscopic automatic detection of vascular lesions during CE. The diagnostic performance of this CNN in multi-brand devices addresses an essential issue of technological interoperability, allowing it to be replicated in multiple technological settings.

Fabrication of nanofiber yarns via electro-blown and hang-fiber process

Continuous nanofiber yarns were prepared using the electro-blown and hanging yarn process. Unlike typical electrospinning devices, this method uniquely controls the spinning process to induce the hanging phenomenon, and the resulting hanging yarn is twisted to form nanofiber yarns. A polyvinylidene fluoride nanofiber yarn was successfully prepared using the electro-blown and hanging yarn process. Scanning electron microscopy observations confirmed that the nanofibers prepared by this method exhibited good orientation within the yarn. The results indicate that the conductivity of the polymer solution and the applied voltage are crucial for inducing the hanging yarn process, ensuring stable continuous spinning. A possible mechanism is proposed, suggesting that adjusting the solution’s conductivity and controlling the spinning voltage can utilize defects in the yarn-hanging process during spinning to prepare nanofiber yarns.

Неотражающие фильтры CВЧ (обзор)

The subject of the review is non-reflective microwave filters (NF) of various types, also called absorption filters. Brief information from the history of the creation of SF is provided. Directional filters are considered, which served as the prototype of non-reflective filters, NFs on lumped elements, non-reflective filters with loaded sections of transmission lines, non-reflective filters on coupled lines. All of these types of devices differ from conventional filters in that they remain matched both in and out of the operating passband (or non-passband). Part of the unwanted frequency spectrum of the signal entering the input of such filters is not reflected back to the signal source, but is absorbed in the filter itself. This operating principle of the NF ensures effective matching with other devices in the system, which is a key characteristic when designing wideband equipment with multiple output and output channels tuned to different frequencies. An assessment is made of the current state of development, prospects for miniaturization and improvement of the characteristics of non-reflective filters.

凸轮原理启发的经济林树干自动环剥装置的设计与实验研究

In order to solve the problem of complicated processes, low efficiency and high cost of economic tree trunks girdling, inspired by cam mechanism this study developed a new type of automatic half-ring girdling device, which can automatically complete a series of operations, including the tree trunk profile scanning, girdling trajectory calculating and automatic bark cutting. A pair of laser rangefinders and guide screws were symmetrically arranged on a half-ring rotating rail, which could rotate around the tree trunk, and two chainsaws assembled above the guide screws were controlled to move radially. The laptop was used as upper computer, and a 4-axis motion control card was used as the lower computer, which constituted the control system of precise movement. The programs of the tree trunk profile scanning, the xylem profile curve fitting and the chainsaw centre trajectory calculation were designed in LabVIEW. The scanning tests and girdling experiments were carried out on the different sections of the tree trunks in the laboratory. The feasibility of the automatic girdling device for economic tree trunks was verified with one complete and automatic girdling operation finished by this device, which took 150 seconds, and the error range of automatic girdling was within ±2mm. This device improves the automation degree of girdling operation and provides a support for the development of economic forestry.

Age-Stratified Clinical Outcome in Patients with Known Heart Failure Who Receive Pacemaker, Resynchronization Therapy, or Defibrillator Implants

Introduction: Patients with heart failure (HF) and bradycardia may be eligible for different types of cardiac implantable electronic devices (CIED), depending on the presence of atrioventricular conduction disease, age, and comorbidities. We aimed to assess the prognosis for these patients, after CIED implantation, stratified for the type of CIED device. Methods: All patients with preexisting HF diagnosis who received a CIED with a right ventricular lead during the period 2005–2018 in Sweden were identified via the pacemaker registry. Data were crossmatched with the population registry and national disease registries. The outcome was 5-year risk of HF hospitalization and mortality. Results: A total of 37,745 patients were included in the study. Comparing demographics for implantable cardioverter defibrillator versus pacemaker implants, median age was 66 years versus 83 years, 20% versus 41% were female, 64% versus 50% had ischemic heart disease, and 35% versus 67% had atrial fibrillation (all p p p 90 years old, all p p Conclusion: In this large real-world cohort of CIED-treated patients with prior HF, demography and mortality data indicate that clinicians chose devices according to the overall status of the patient. HF-related events occurred in all groups but were more common in CRT-treated patients.

Uterine Balloon Tamponade in Management of Postpartum Hemorrhage

Aim. To evaluate the efficacy and safety of uterine balloon tamponade for the management of postpartum haemorrhage.Materials and Methods. We have screened the Cochrane Library and PubMed for the following keywords: “intrauterine balloon tamponade”, “controlled balloon tamponade”, “controlled balloon tamponade” AND “postpartum bleeding/haemorrhage” during 5 years (2018-2023). In total, we have identified 358 publications including 3 meta-analyses, 6 systematic reviews, and 13 randomized controlled trials. After checking titles and abstracts to remove duplicates, we selected 38 sources which met the selection criteria.Results. Postpartum haemorrhage remains the leading cause of maternal mortality in both developing and developed countries. In most cases, postpartum haemorrhage occurs due to atony and is controlled by administration of uterotonics. However, if uncurbed, postpartum haemorrhage requires blood transfusion and surgery. Currently, uterine balloon tamponade is considered as one of the most efficient and safe technologies for controlling postpartum haemorrhage and preventing hysterectomy, yet a number of studies have reported negative results. Several investigations showed an advantage of double-balloon tamponade as it provides an additional benefit of vascular compression of the lower uterine segment. Generally, uterine balloon tamponade is an efficient intervention which allows to avoid additional surgeries (uterine artery embolization or hysterectomy) in 87.3 – 100.0% of cases with a relatively low complication rate (< 6.7% – 9.4%).Conclusion. The effectiveness of uterine balloon tamponade and the risk of complications are probably determined by the type of device, the learning curve effect, and the regularity and quality of training of medical personnel. Further in-depth multicenter studies in this direction are required.

GENERAL QUESTIONS OF SELECTION AND APPLICATION OF COMMUNICATION PROTOCOLS OF «SMART HOUSE» SYSTEM

The article considers SMART technology, in particular smart house and basic communication protocols used for data exchange. Smart house technology additionally bears the name «home automation». Home automation in modern conditions allows the user or consumer to flexibly manage and independently configure the system, depending on the requirements of the user. One of the stages of customization of smart home technology is the selection of communication protocol for data exchange within the smart home system.To implement data exchange in smart home technology, it is necessary to properly approach the choice of communication protocols. Smart home technology uses several types of devices: controllers, sensors, acoustics. Since not all devices support existing protocols, there are also unique devices that support several of the existing protocols. There are several protocols used in smart home technology: ZigBee, Z-Wave, Wi-Fi.In this article the analysis of two main wireless protocols operating at high frequencies, namely ZigBee and Z-Wave. Correctly selected protocols implement fast data transmission without loss. In addition, it will be possible to realize the needs of the user or user, which are set by the system.

Drivers' use of different types of multimedia devices while driving - a survey study

Accidents and collisions continue to be an ongoing problem in road safety. While driving, drivers are influenced by stimuli that can affect their behaviour in various ways. Nowadays, various types of multimedia devices have become popular, which, when used by drivers while driving, can influence driver attention. The literature undertakes studies of the impact of such devices on the driver's degree of distraction as measured, for example, by the driver's reaction time. A survey was conducted to identify sources of driver distraction. A total of 237 drivers aged between 18 and 78 years participated in the sample. Of the respondents, 64.6% use a mobile phone while driving, 20.3% use a smartwatch, 33.3% use a multimedia control system for vehicle functions. Respondents indicated that they had either witnessed (18.1%) or been involved (6.3%) in a collision/accident when the driver used various types of multimedia devices while driving. Of those surveyed, 2.1% had caused a collision or accident by using a multimedia device while driving. Respondents are aware of the risks of using different types of media devices while driving, but they still use them. The analyses of the survey data will be used in future research using a car simulator.

Ultralow charge–discharge voltage gap of 0.05 V in sunlight‐responsive neutral aqueous Zn–air battery

AbstractRechargeable neutral aqueous zinc−air batteries (ZABs) are a promising type of energy storage device with longer operating life and less corrosiveness compared with conventional alkaline ZABs. However, the neutral ZABs normally possess poor oxygen evolution reactions (OERs) and oxygen reduction reactions performance, resulting in a large charge–discharge voltage gap and low round‐trip efficiency. Herein, we demonstrate a sunlight‐assisted strategy for achieving an ultralow voltage gap of 0.05 V in neutral ZABs by using the FeOOH‐decorated BiVO4 (Fe‐BiVO4) as an oxygen catalyst. Under sunlight, the electrons move from the valence band (VB) of Fe‐BiVO4 to the conduction band producing holes in VB to promote the OER process and hence reduce the overpotential. Meanwhile, the photopotential generated by the Fe‐BiVO4 compensates a part of the charging potential of neutral ZABs. Accordingly, the energy loss of the battery could be compensated via solar energy, leading to a record‐low gap of 0.05 V between the charge and discharge voltage with a high round‐trip efficiency of 94%. This work offers a simple but efficient pathway for solar‐energy utilization in storage devices, further guiding the design of high energy efficiency of neutral aqueous ZABs.

Assessing mouse, trackball, touchscreen and leap motion in ship vibration conditions: A comparison of task performance, upper limb muscle activity and perceived fatigue and usability

A variety of interaction devices are increasingly used for human-computer interaction (HCI) tasks in ship vibration conditions, but have seldom been well assessed. This study aimed to examine task performance, upper limb muscle activity, and perceived fatigue and device usability for four typical interaction devices (i.e., mouse, trackball, touchscreen, and Leap Motion) under simulated ship vibration conditions. A two-factor within-subjects design was employed in this study, where participants performed basic HCI tasks with the four interaction devices under three conditions (i.e., static condition, and low and high vibration conditions). The results showed that vibration condition significantly reduced task performance, especially for Leap Motion. Differences in task performance, upper arm and shoulder muscle activities, perceived fatigue and device usability were found among interaction devices. Mouse and touchscreen achieved the best task performance, compared with trackball and Leap Motion, while both touchscreen and Leap Motion achieved larger upper limb muscle activities, compared with trackball and mouse. Relevance to industryThe findings provide important implications for the use and configuration of interaction devices, and for the development of prevention interventions for risks of musculoskeletal disorders in using interaction devices under ship vibration conditions.

Current Evidence Using Pulsed Electromagnetic Fields in Osteoarthritis: A Systematic Review.

(1) Background: Osteoarthritis (OA) significantly impacts patients' quality of life and negatively affects public healthcare costs. The aim of this systematic review is to identify the effectiveness of pulsed electromagnetic fields (PEMFs) in OA treatment across different anatomical districts, determining pain reduction and overall improvement in the patient's quality of life. (2) Methods: In this systematic review following PRISMA guidelines, PubMed and Google Scholar were searched for randomized controlled trials involving patients with osteoarthritis undergoing PEMF therapy. Seventeen studies (1197 patients) were included. (3) Results: PEMF therapy demonstrated positive outcomes across various anatomical districts, primarily in knee osteoarthritis. Pain reduction, assessed through VAS and WOMAC scores, showed significant improvement (60% decrease in VAS, 42% improvement in WOMAC). The treatment duration varied (15 to 90 days), with diverse PEMF devices used. Secondary outcomes included improvements in quality of life, reduced medication usage, and enhanced physical function. (4) Conclusions: Diverse PEMF applications revealed promising results, emphasizing pain reduction and improvement in the quality of life of patients. The variability in the treatment duration and device types calls for further investigation. This review informs future research directions and potential advancements in optimizing PEMF therapies for diverse osteoarthritic manifestations.

Evaluation of the Suitability of Using Artificial Neural Networks in Assessing the Effectiveness of Greywater Heat Exchangers

The use of greywater heat exchangers (GHEs) is an effective way to reduce energy consumption for heating domestic water. However, the available characteristics of this type of device are often insufficient and consider only a few selected parameters of water and greywater, which results in the need to look for tools enabling the determination of the effectiveness of GHEs in various operating conditions with incomplete input data. The aim of this paper was to determine the usefulness of artificial neural networks (ANNs). For this purpose, comprehensive experimental tests were carried out on the effectiveness of the horizontal heat exchanger, taking into account a wide range of water and greywater flow rates and temperatures of these media, as well as the linear bottom slope of the unit, which allowed for the creation of a database of 32,175 results. Then, the feasibility of implementing the full research plan was assessed using ANNs. The analysis showed that the impact of the media temperatures on the heat exchanger effectiveness values obtained using ANNs is limited, which makes it possible to significantly reduce the number of necessary experiments. Adopting only three temperature values of at least one medium allowed the generation of ANN models with coefficient values R2 = 0.748–0.999 and RMSE = 0.077–1.872. In the case of the tested GHE, the slope and the flow rate of the mixed water are of key importance. However, even in the case of parameters of significant importance, it is possible to reduce the research plan without compromising the final results. Assuming five different values for each of the four input parameters (a total of 625 combinations) made it possible to generate an ANN model (R2 = 0.993 and RMSE = 0.311) with high generalization ability on the full research plan covering 32,175 cases. Therefore, the conducted analysis confirmed the usefulness of ANNs in assessing the effectiveness of GHEs in various operating conditions. The approach described in this paper is important for both environmental and economic reasons, as it allows for reducing the consumption of water and energy, which are necessary to carry out such scientific research.

Robotic Assistance in Percutaneous Liver Ablation Therapies: A Systematic Review and Meta-Analysis.

The aim of this systematic review and meta-analysis is to identify current robotic assistance systems for percutaneous liver ablations, compare approaches, and determine how to achieve standardization of procedural concepts for optimized ablation outcomes. Image-guided surgical approaches are increasingly common. Assistance by navigation and robotic systems allows to optimize procedural accuracy, with the aim to consistently obtain adequate ablation volumes. Several databases (PubMed/MEDLINE, ProQuest, Science Direct, Research Rabbit, and IEEE Xplore) were systematically searched for robotic preclinical and clinical percutaneous liver ablation studies, and relevant original manuscripts were included according to the Preferred Reporting items for Systematic Reviews and Meta-Analyses guidelines. The endpoints were the type of device, insertion technique (freehand or robotic), planning, execution, and confirmation of the procedure. A meta-analysis was performed, including comparative studies of freehand and robotic techniques in terms of radiation dose, accuracy, and Euclidean error. The inclusion criteria were met by 33/755 studies. There were 24 robotic devices reported for percutaneous liver surgery. The most used were the MAXIO robot (8/33; 24.2%), Zerobot, and AcuBot (each 2/33, 6.1%). The most common tracking system was optical (25/33, 75.8%). In the meta-analysis, the robotic approach was superior to the freehand technique in terms of individual radiation (0.5582, 95% confidence interval [CI] = 0.0167-1.0996, dose-length product range 79-2216 mGy.cm), accuracy (0.6260, 95% CI = 0.1423-1.1097), and Euclidean error (0.8189, 95% CI = -0.1020 to 1.7399). Robotic assistance in percutaneous ablation for liver tumors achieves superior results and reduces errors compared with manual applicator insertion. Standardization of concepts and reporting is necessary and suggested to facilitate the comparison of the different parameters used to measure liver ablation results. The increasing use of image-guided surgery has encouraged robotic assistance for percutaneous liver ablations. This systematic review analyzed 33 studies and identified 24 robotic devices, with optical tracking prevailing. The meta-analysis favored robotic assessment, showing increased accuracy and reduced errors compared with freehand technique, emphasizing the need for conceptual standardization.