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This case study aims to shed light on what went wrong with the introduction of new surgical suture in a Dutch hospital operating theatre following a tender. Transition to working with new surgical suture was organized in accordance with legal and contractual provisions, and basic principles of change management were applied, but resistance from surgeons led to cancellation of supplies of the new suture.

Researchers had access to all documents relevant to the tendering procedure and crucial correspondence between stakeholders. Seventeen in-depth, 1 h interviews were conducted with key informants who were targeted through maximum variation sampling. Patients were not interviewed. The interviews were recorded, transcribed and analysed by discourse analysis. A trial session and workshop were participatively observed. A cultural psychological perspective was adopted to gain an understanding of why certain practices appear to be resistant to change.

For the cardiothoracic surgeons, suture was more than just stitching material. Suture as a tactile element in their day-to-day work environment is embedded within a social arrangement that ties elements of professional accountability, risk avoidance and direct patient care together in a way that makes sense and feels secure. This arrangement is not to be fumbled with by outsiders.

By understanding the practical and emotional stakes that medical professionals have in their work, lessons can be learned to prevent failure of future change initiatives.

The cultural psychological perspective adopted in this study has never been applied to understanding failed change in a hospital setting.

Teleoperated minimally invasive surgical robots can significantly enhance a surgeon's accuracy, dexterity and visualization. However, current commercially available systems do not include significant haptic (force and tactile) feedback to the operator. This paper describes experiments to characterize this problem, as well as several methods to provide haptic feedback in order to improve surgeon's performance. There exist a variety of sensing and control methods that enable haptic feedback, although a number of practical considerations, e.g. cost, complexity and biocompatibility, present significant challenges. The ability of teleoperated robot‐assisted surgical systems to measure and display haptic information leads to a number of additional exciting clinical and scientific opportunities, such as active operator assistance through “virtual fixtures” and the automatic acquisition of tissue properties.

Studies show that economic sanctions have had major negative impacts on health systems during the past years. The aim of this study is to identify the impacts of US sanctions on the performance of public hospitals in Iran.

A qualitative research study was conducted between October 2019 and September 2020 in Kermanshah Province, Iran. Semi-structured, face-to-face interviews, lasting between 25 and 90 min, were carried out with 20 participants in seven public hospitals affiliated to the authors’ institution in Kermanshah Province. Inductive thematic analysis was used to identify themes in the data.

Five main themes emerged from the analysis: resource management challenges; financial restrictions; interruptions in planning; reductions in the quality of service delivery; and changes in organizational relationships.

The results of the present study demonstrate that US economic sanctions have considerably reduced access to necessary medical equipment and medicines for public hospitals in Iran. Policymakers should monitor the distribution of equipment and pharmaceutical products within public hospitals in Iran and take actions to ameliorate shortages during times of economic sanctions.

The purpose of this paper is to review the progress that one innovative firm is making in the development and deployment of robots to actually perform surgery on humans with a doctor's guidance.

Detailed dialog with the development team for the da Vinci® Surgical System at Intuitive Surgical and with several medical institutions that have deployed the system.

The success of applying robotic technology to surgery only confirms that human activity and automation are ever closer bound together. The robot provides surgical advantages such as improved visualization, precision of movement, range of movement, ergonomics, and dexterity, and often times better procedure outcomes.

Medical technology can be improved by the linking surgeons with robotics. Surgery joins other once thought of as human only activities, such as reading books, filling orders, etc. which can be improved with robotics.

Other hospitals may find the innovation and success of robotic surgery to be of value to their medical services menu.

The introduction of laparoscopy in surgery offered clear advantages to patients. Surgeons, however, had to deal with various types of problems inherent to the essential differences in surgical approach. One of these problems, reduced dexterity, was solved at the end of the previous decade by the introduction of robotic surgery systems. Discusses the backgrounds for development of the Intuitive Surgical “Da Vinci” systems and gives an overview of current status and functionality.

Aims to demonstrate how robot technology, machine vision, voice recognition and artificial intelligence can be applied to creating an automated surgeon's assistant that is functional and cost‐effective.

Presents the development process that led to the construction of the Penelope Surgical Instrument Server (SIS), outlines the mechanical design of the robot, describes the control strategy and reports on the first real live implementation in an operating room. Machine vision, voice recognition and artificial intelligence are combined to create a robot assistant that is able to anticipate a specific surgeon's needs for a specific surgical procedure.

Finds that a robot can manage an array of surgical instruments and present the right one to the surgeon at the right time.

A robot for assisting a surgeon can relieve support staff in hospital operating rooms of repetitive tasks and thereby improve patient care.

Introduces the concept of a robot for assisting surgeons in operating rooms and freeing up scarce financial and human resources to provide for better nursing coverage in patient care areas.

The purpose of this study was to evaluate the effects of repetitive transcranial magnetic stimulation (rTMS) at different frequencies on working memory (WM) and neuroelectric activity in rats.

Three rTMS protocols involving different frequencies were applied to rats, and 16-channel local field potentials (LFPs) and spikes were recorded from the prefrontal cortex (PFC) of rats in each group during the WM task. First, the behavior of rats during the T-maze task was analyzed, and then, the firing rate of spikes and the energy of the θ-band and γ-band in LFPs when rats performed the WM tasks were calculated. Finally, the spectral coherence between LFPs and spikes was analyzed by wavelet transform.

The results showed that rats in the stimulation groups needed fewer days than those in the control group to reach the task correction standard during the WM experiment (p < 0.05). High-frequency rTMS increases the firing rate of spikes and the degree of synchronization of LFPs-spikes in the θ-band and γ-band in the WM process.

This study showed that high-frequency rTMS can improve the spatial learning ability of rats, which might be due to the increased neuronal excitability of the PFC and the enhancement of co-coding between different modes of neural signals. This study is helpful for understanding the neuroregulatory mechanism of rTMS and will provide a reference for the selection of a suitable frequency for TMS treatment.

Orbital forming is an efficient and precise process to assemble component parts. It provides strength, an attractive finished appearance, and batch‐to‐batch uniformity. Orbital forming machines can produce high‐torque assemblies and also freely swinging joints, and any degree of built‐in resistance in between. These machines quietly flare and form all malleable materials, including many engineering thermoplastics, and work safely on delicate and brittle parts. The machine controls provide infinitely variable cycle times (speed), forming pressure and tool stroke on the micrometer dial with resolution to 0.001 in.

The purpose of this paper is to provide a review of the technology and applications of shape‐memory materials (SMMs).

This paper initially considers various classes of SMMs and their properties. It then discusses applications and concludes with a brief review of recent research and future prospects.

SMMs include shape‐memory alloys (SMAs), ferromagnetic SMAs (FSMAs) and shape‐memory polymers (SMPs), which change shape when influenced by temperature and other stimuli. SMAs comprising nickel‐titanium alloys were discovered and commercialised first and find uses in fittings, seals, valves, actuators and medical devices due to their thermoelastic properties. Their pseudoelastic properties are exploited in spectacle frames and other deformable metal products. FSMAs and SMPs were discovered more recently and are at an early stage of commercialisation and remain the topic of on‐going research. Pilot applications are being investigated in the healthcare, aerospace, automotive and other industries. All classes of SMMs have prospects for more widespread uses in the future.

Provides a detailed review of SMM materials, products and application and an insight into future developments.