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At least 1,315 records · Page 73Linked to original sources
PubMed2003

Robot-based tele-echography: the TER system.

This paper presents a master-slave robotized system enabling a remote echographic diagnosis. The expert holds a virtual probe placed on a haptic device; he moves this virtual probe in order to control the motion of the real probe positioned on the body of the patient located remotely. The real probe is placed on a lightweight and user-friendly slave robot and moved by it. The contact force between the probe and the patient is fed back to the operator allowing him to have a haptic virtual environment. The aim of this haptic control is to preserve the medical expert proprioception in order to the facilitate hand-eye coordination necessary to echographic examination. In this paper we present the architecture of the system and experimental results.

France↗
PubMed2003

The world wide web and robotic heart surgery.

PURPOSE: The primary goal of this study was to (1) determine patients' access to and use of the Internet for healthrelated information before and after endoscopic atraumatic coronary artery bypass (Endo-ACAB) surgery, (2) investigate patients' methods of searching for such information, and (3) suggest future improvements for Internet-based patient education. The secondary goal of this study was to determine (1) patients' health-related quality of life and (2) degree of satisfaction following the Endo-ACAB procedure. METHODS: A follow-up study was conducted of 50 consecutive patients who had undergone Endo-ACAB procedures at the Center for Less Invasive Cardiac Surgery and Robotic Heart Surgery in Buffalo, New York. Study surveys were designed cooperatively by a communication scientist specializing in Internet studies and cardiac surgeons. Patients completed surveys over a period of 18 months, from January 2001 to June 2002. RESULTS: All 50 patients (100%) in the targeted study group completed the survey. Forty-four (88%) of these respondents reported having Internet access. The Web was cited as the most popular source of initial information on Endo-ACAB, with 36% of patients (18) first learning about the procedure through an Internet search. All 44 patients with Internet access used the Web as an additional source of information before surgery, but only 20% (7/35) did so after surgery. Most patients (91%, 40/44) felt that their surgeon should develop a Web site to detail the Endo-ACAB procedure. An investigation of patient quality of life showed that 96% of patients were not experiencing any symptoms related to t heir surgery. All 50 patients reported high degrees of satisfaction with the Endo-ACAB procedure, and 98% (49) said that they would recommend the surgery to someone else. CONCLUSION: A vast majority of patients are realizing the benefits of the Internet as a tool to educate themselves, both before and after surgery. The request by an overwhelming majority of patients that surgeons develop Web sites, however, shows that patients may not be completely satisfied with the current form or content of health sites on the Internet. Surgeons will see the benefits of Web-based education only when they ensure that their patients have access to adequate and credible health-related information. The early results of robotic surgery suggest a promising future and the need to investigate the role of the Internet in its growth.

Aged↗
PubMed2004

Development of a finger printing device for use on a mobile robot.

In this paper, we describe the development of a device for fuming fingerprints with cyanoacrylate (Super Glue) to enable police tactical units to obtain fingerprint evidence from suspicious packages using a remote-controlled robot. Through a series of initial experiments and preliminary designs, we show that effective cyanoacylate fuming requires sufficient heat, humidity, and airflow. This work led to the development of a final working prototype, called robot accessory for fuming fingerprint evidence (RAFFE), which is currently being field tested by the Calgary Police Service.

Cyanoacrylates↗
PubMed2004

[The overview of robot surgery].

Surgical operations have developed in the method which skillful surgeon's hands and eyes are used. However, to realize a new surgical therapy in the 21st century, it is necessary to use various advanced technologies; surgical robots, three dimensional medical images, computer graphics, computer simulation technology and others. Three dimensional medical image for surgical operation provides surgeons with advanced vision. Surgical robots provide surgeons with advanced hand, but it is not a machine to do the same action of a surgeon using scissors or a scalpel. The advanced vision and hands available to surgeons are creating new surgical fields which are minimally invasive surgery, non-invasive surgery, virtual reality micro-surgery, tele-surgery, fetus surgery, neuro-informatics surgery and others in the 21st century.

Computer Graphics↗
PubMed2004

The implementation of robotic technology in an animal facility: a case study.

The benefits of a robotics system for waste disposal and cage sanitation in an animal care facility include a reduction of ergonomic concerns and an increase in production capability. A modular approach can further provide an ability to relocate the unit to new building construction. There are numerous considerations that can affect the design and operation of a robotic cagewash system. These include facility layout, existing animal husbandry procedures, equipment selection, and employee involvement. The implementation of the complete system in an animal facility requires communication and insight from all members of the animal care staff as well as novel solutions to attain full production and operation. The system itself contains many complex technical and mechanical functions, but a successful installation can only be fully achieved with teamwork and proper training.

Animals↗
PubMed2004

Robotically assisted endoscopic transmyocardial laser revascularization.

BACKGROUND: The surgical approach to transmyocardial laser revascularization (TMR) via thoracotomy has been approved for the treatment of angina in inoperable patients, but it has had limited use as a stand-alone procedure. OBJECTIVES: To assess the feasibility and efficacy of robotically assisted endoscopic TMR using the Zeus robotic surgical system (Computer Motion, USA) and an excimer TMR system (Spectranetics, USA) in a porcine model. METHODS: Five pigs weighing 20 kg to 40 kg were used. A 10 mm endoscope, two 5 mm instrument ports and a 1.4 mm TMR probe were introduced into the left hemithorax. Endoscopic TMR was performed on the anterolateral or lateral left ventricular wall using Zeus instruments to hold and guide the TMR probe. RESULTS: The mean system set-up time was 4.2+/-0.6 min, the mean port placement time was 11+/-1.7 min, the mean TMR procedure time was 5.0+/-0.7 min and the mean number of transmural TMR channels was 10+/-3.6. All pigs tolerated the entire procedure. Histological examination showed that transmural channels were successfully created. CONCLUSIONS: Endoscopic TMR using the Zeus system was feasible, in a pig model, in creating transmural laser channels on the anterior and lateral left ventricle, and may provide a significant advantage over the open chest approach in reducing perioperative morbidity and improving recovery.

Animals↗
PubMedDate not supplied

Hartford Hospital surgeons share publicity with robot 'assistants.'.

Hartford Hospital, Hartford, Conn. finds some patients gravitate to Boston or New York City for high-tech procedures. Being the first Connecticut hospital with the daVinci Robotic Surgery System, it developed an advertising campaign emphasizing high-tech surgery with the human touch. Hartford also broadcast a robotic prostatectomy on its popular live webcast series.

Connecticut↗
PubMed2004

Robot-assisted minimally invasive surgery: the importance of human factors analysis and design.

Success in robotic minimally invasive surgery (MIS) has been limited despite the innovations in robotic technology for surgical applications. Human factors engineering approach to the design and implementation of this technology is major to improving system performance and patient safety. The engineering discipline of human factors involves the study of factors and development of tools that enable human interaction with systems in a safe and effective manner. Human factors contribution is important to the product design life cycle, as it supports the design of a product capable of supporting, extending, and transforming user work in a cost-effective and timely fashion. A framework for modelling the interaction between the surgeon and technology in MIS is presented. This approach allows for identification of requirements and constraints at the physical, functional, and cognitive levels, which in turn guides the design of the technology and its interface. The human factors approach is expected to increase the effectiveness of the technology when deployed.

Clinical Competence↗
PubMed2004

Light fields for minimal invasive surgery using an endoscope positioning robot.

OBJECTIVES: To generate a fast and robust 3-D visualization of the operation site during minimal invasive surgery. METHODS: Light fields are used to model and visualize the 3-D operation site during minimal invasive surgery. An endoscope positioning robot provides the position and orientation of the endoscope. The a priori un-known transformation from the endoscope plug to the endoscope tip (hand-eye transformation) can either be determined by a three-step algorithm, which includes measuring the endoscope length by hand or by using an automatic hand-eye calibration algorithm. Both methods are described in this paper and their respective computation times and accuracies are compared. RESULTS: Light fields were generated during real operations and in the laboratory. The comparison of the two methods to determine the unknown hand-eye transformation was done in the laboratory. The results which are being presented in this paper are: rendered images from the generated light fields, the calculated extrinsic camera parameters and their accuracies with respect to the applied hand-eye calibration method, and computation times. CONCLUSION: Using an endoscope positioning robot and knowing the hand-eye transformation, the fast and robust generation of light fields for minimal invasive surgery is possible.

Algorithms↗
PubMed2004

Interactive robots for neuro-rehabilitation.

This article reviews a decade of work aimed at developing effective interactive robotic tools to treat and understand motor impairment and disability. The success of an initial pilot study with acute-phase in-patients recovering from stroke prompted a larger study showing that these results could be replicated and a follow-up study showing that the benefits lasted. Studies of chronic-phase out-patients demonstrated that similar benefits could be obtained which also lasted and were accompanied by a concomitant reduction of pain. Exploration of the likely biology of recovery suggested an improvement of robotic treatment in the form of performance-based progressive therapy aimed at accelerating a process akin to motor learning postulated to underlie recovery. Initial studies of this method show a dramatic improvement over the previous successes. Kinematic studies of the recovery process show that, similar to the development of motor behavior in infants, it begins with stereotyped submovements and proceeds by progressively merging these to approach unimpaired motor performance.

Clinical Trials as Topic↗
PubMed2004

A one-DOF freehand haptic device for robotic tele-echography.

Tele-echography may be an interesting alternative to conventional care when the medical expert is not close to the patient to be examined. In a system for tele-echography, medical expert proprioception and gesture feelings must be preserved to synchronize the ultrasound images with the motion made by the physician. It is why we develop a master-slave system for robotic tele-echography integrating force feedback. Because existing haptic devices are not fully adapted to this application--their workspace is often small and their basis is fixed--, we have developed a one-dimensional free-hand force feedback device. In this paper, we describe the design and a first evaluation of this new haptic device for robotic tele-echography.

France↗
PubMed2004

In vivo robots for laparoscopic surgery.

Laparoscopic techniques have allowed surgeons to perform operations through small incisions. However, the benefits of laparoscopy are still limited to less complex procedures because of losses in imaging and dexterity compared to conventional surgery. This project is developing miniature robots to be placed within the abdominal cavity to assist the surgeon. These remotely controlled in vivo robots provide the surgeon with an enhanced field of view from arbitrary angles as well as provide dexterous manipulators not constrained by small incisions in the abdominal wall.

Animals↗
PubMed2005

A laparoscopic radical prostatectomy assisted by the "ZEUS" robotic system: an initial case report.

A 68-year-old man with prostate cancer, T1cN0M0, was treated with laparoscopic radical prostatectomy (LRP) assisted by the ZEUS robotic system. The ZEUS system was utilized only for vesico-urethral anastomosis, one of the most difficult procedures to perform during LRP. We could complete the vesico-urethral anastomosis using the ZEUS system for 100 min without any intraoperative complications. The urethral catheter was removed 7 days after operation. To our knowledge, this is the initial case of robot-assisted radical prostatectomy using the ZEUS system.

Aged↗
PubMedDate not supplied

Use of robotics during laparoscopic gastric bypass for morbid obesity.

To evaluate the theoretical increased precision offered by utilization of the robotic instrument, we attempted to determine whether incorporation of its use into traditional laparoscopic gastric bypass would duplicate or improve the success of the operation without increasing complications. The Roux-en-Y gastric bypass is the most commonly performed procedure for morbid obesity in the United States. We performed 120 gastric bypass procedures with traditional laparoscopy during a 30-month period. We began introducing the da Vinci Robotic Surgical System into our laparoscopic gastric bypass procedure and evaluated its effectiveness.

Adult↗
PubMed2005

[Robotic coronary artery surgery: past, present and future].

Minimally invasive endoscopic procedures in cardiac surgery have only become possible since the introduction of telemanipulator systems. In this study we review robotic assisted telemanipulation systems and procedures on beating and arrested heart for total endoscopic revascularization. Robotic surgery is still under development. The most important factors limiting this new technique are high costs and the fact that only selected patients are able to be operated on. But studies on technology especially to improve anastomotic techniques are going on to produce an alternative for coronary revascularisation. We did not yet hit all goals but the future seems promising.

Cardiovascular Surgical Procedures↗
PubMed2005

[A HIFU surgery using 8-DOF robotic surgery platform].

Robots are being more and more used in surgery. High Intensity Focused Ultrasound is newly used in tumor treatment and it is non invasive. In this paper, we introduced a Robot integrated HIFU surgery system and its general flow. Also introduced is an 8 DOF surgical platform, its design, its mechanism and its kinematic analysis. In the end, we give out two spatial working areas individually. Each is the combination of 5 dimensional motions. Compared with other platforms available, this surgery platform is more flexible and accurate and its treatment area is larger. All these advantages make the treatment design easier.

Equipment Design↗
PubMed2005

Potential applications of the da Vinci minimally invasive surgical robotic system in otolaryngology.

Anatomic constraints and instrumentation design characteristics have limited the exploitation of endoscopic surgery in otolaryngology. The move toward less invasive and less morbid procedures has paved the way for the development and application of robotic and computer-assisted systems in surgery. Surgical robotics allows for the use of new instrumentation in our field. We review the operative advantages, limitations, and possible surgical applications of the da Vinci Surgical System in otolaryngology. In the laboratory setting, we explored the setup and use of the da Vinci system in porcine and cadaveric head and neck airway models; the setup was configuredfor optimal airway surgery. Endoscopic cautery, manipulation, and suturing of supraglottic tissues were performed in both the porcine and cadaveric models. We found that the da Vinci system provided the advantages of the lower morbidity associated with endoscopic surgery, more freedom of movement, and three-dimensional open surgical viewing. We also observed that the system has several limitations to use in otolaryngology.

Animals↗