Biomedical subjects

Goossens

Publications and source records attributed to Goossens.

5 recordsLinked to original sources

PubMed2004

Development of a scheme which visualizes the human-product interaction in minimally invasive surgery.

The aim of this study is to visualize in a scheme all factors that are part of or influence the human-product interaction in minimally invasive surgery (MIS). The factors involved in the interaction are identified and investigated by means of literature studies, product information from producers and retailers, and by observation of MIS procedures. An interaction scheme has been compiled which encompasses the following factors: A product factor, divided into the surgical functions of image visualization, workspace creation, tissue treatment, tissue assessment, and procedure support. A human factor, divided into the functions of perception, cognition, and action. Internal factors (perceptional, cognitive, and action) and external factors (social, political, physical, clinical, and technological) that influence the interaction. Two product examples are used to demonstrate the use of the interaction scheme. The results show that when the design of a product focuses on limited factors, problems arise related to those factors which are not considered. The interaction scheme is a new way to represent the human-product interaction in MIS. It can be used to structure and to gain insight into problems that occur with the use of MIS products. The scheme also elucidates the factors that are involved in the interaction so that they can be considered in product and operating room design.

Journal Article↗

PubMed2004

Ergonomic evaluation of three new principles for mono-incision in laparoscopic surgery.

Several instruments exist for performing a simple laparoscopic procedure through one trocar-incision. However, all of these instruments have well-known image-related disadvantages. In order to solve these problems three principles have been developed for which a new device was designed. The functionality of this device was evaluated with regard to four parameters: duration of task completion, number of errors, image-stability and preference by users. Although the differences between the three principles were small, the tests clearly showed that the problems surgeons experienced before have been significantly diminished by the new device. Time measurements showed a preference for principles 1 and 2 (1: manual zoom camera in combination with a standard grasping device; 2: laparoscope with an angle of 45 degrees in combination with a standard grasping device), the surgeons expressing preference for principle 2. Furthermore, the new trocar system is the first device for mono-incision in which two standard instruments (currently available on the market) are used simultaneously without enlarging the incision. Finally, each surgeon can work with the new device using the principle he/she is preferring.

Journal Article↗

PubMed2004

Using apprenticeship communication flow as an ergonomic design input for future OR systems.

Removing the gallbladder is a relatively simple laparoscopic operation. Tissue trauma, caused by laparoscopic cholecystectomy, is usually minimal. Misidentifying the cystic duct and artery and the common hepatic duct represents the most severe complication. However, the Critical View of Safety (CVS) technique reduces the risk of trauma, by accomplishing a safe 360 degrees identification of the cystic duct origin at the gallbladder neck [ 5 ]. This technique is employed and trained at the Erasmus Medical Centre (EMC), Rotterdam, The Netherlands. This study presents the potential value of a training device which residents can use during practice. This training device must cover both user friendliness and information supply. The current information supply was studied subjectively; the CVS protocol and the users' experience were studied both objectively and subjectively. The results of these studies show that the present information supply is not satisfactory, that there is a CVS protocol which can be easily used in a training device, and that most actions defining the cystic duct during operation revert on users' experience. Therefore, it is desirable to design a new training device according to the experience of the target group and the protocols, and taking into account an optimal human-product interaction.

Journal Article↗

PubMed2004

MEDISIGN: Educating designers for the operating room.

One of the interesting things about medical technology is that it addresses so many diverse subjects, which is indeed the case in all departments of a hospital, in general practice and in other care agencies. Medical technology contributes to the diagnosis, treatment and prevention of disease and disorders. Designing for medical applications demands a high level of creativity and inventivity, both in low-tech and in high-tech applications. In over 200 projects with hospitals and companies in the medical field the Delft industrial designer has therefore played an important part in designing innovative products [ 1 ]. In the new program Medisign the expertise and networks that have been built up in this area over the past 20 years are being passed on to students. The program is based upon the idea that education of engineers in human anatomy, physiology, medical technoloy, health care systems and even basic surgical techniques will lead to better communication with the medical professionals and to better design solutions in this area. To our knowledge this is the first initiative in Europe in which structural education in anatomy is offered to industrial design engineers.

Journal Article↗

PubMed2003

Ergonomic handle for an arthroscopic cutter.

From an analysis of the routinely performed meniscectomy procedures, it was concluded that a punch with a side-ways steerable tip would improve the reachability of meniscal tissue. This potentially leads to a safer and more efficient meniscectomy. Furthermore, the current scissors handles of arthroscopic punches are ergonomically not sufficient. An ergonomic handle is designed with one lever that enables opening and closing of the instrument tip, and side-ways steering of the instrument tip. The design of the handle complies with ergonomic guidelines that were found in the literature. A model of the instrument tip was added to the new handle for comparison with conventional handles. Experiments were performed with a knee joint model, using objective and subjective criteria. The results show that the concept of a side-ways steerable punch is promising, since faster task times are achieved without increasing the risk of damaging healthy tissue. The current design of the ergonomic handle incorporates two degrees of freedom in an intuitive way, the handle is more comfortable to hold, and easy to control. The external memory capabilities of the new handle could be improved. Further development of this handle and the addition of a sufficient instrument tip and force transmission are recommended.

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