Giuseppe Tritto

• CEO at Wabtec

In 2008 the WABT Academy (NGO founded under the aegis of UNESCO in Paris in 1997), has promoted the launching of the WABIT – World Association of Bio Info Technologies – World Association of Bio Info Technomics (French Denomination "Association Mondiale des Sciences BioInformatiques et BioTechnologiques", Italian Denomination – "Associazione Mondia...

Introduction Evaluation of the uterine cavity prior to in vitro fertilization (IVF) is a key diagnostic step and sonohisterography (SHG) is often used for this purpose. This study was performed to compare the diagnostic accuracy of two-dimensional (2D) and three-dimensional (3D) SHG for the diagnosis of intrauterine lesions in infertility patients....

First results of the comparison between the electrical activity of taenia coli and circular muscle are described. Experimental techniques consisted in recording electrical activity for 83 h in 12 patients during the post-operative period after cholecystectomy. Bipolar wire electrodes were surgically inserted in each muscle of the transverse colon's...

Microsurgery and processes involving cell manipulation or cell surgery are clinical practices where the operator works at or beyond the threshold of human dexterity. Current tools available are conventional in their design, and this limits consistency and the level of reliability and achievement. Surgical robotic devices have been explored to impro...

Because of a possible relationship between microenvironmental disturbances and meiotic abnormalities and of a straight relationship between lower-quality semen in patient carrying a varicocele and first meiotic non-disjunction, bilateral bipolar testicular biopsies are realized according the thermic differential gradient described in varicocele. Sy...

Microsurgery and processes involving cell manipulation or cell surgery are clinical practices where the operator works at or beyond the threshold of human dexterity. Current tools available are conventional in their design, and this limits consistency and the level of reliability and achievement. Surgical robotic devices have been explored to impro...

Hybrid systems and techniques, combining data-driven learning techniques (such as neural networks) with knowledge-driven techniques (such as fuzzy rules) begin to be extensively applied in the biomedical field, especially for signal analysis and interpretation and for computer-controlled systems. A real need for design and configuration of dedicate...

Microsurgery is a specialized technical discipline in surgical clinics; microsurgical strategies and performances are dedicated to solve clinical and surgical complex problems, working on conductive structures or on compartmentalized miniaturized organs and structures; the working conditions in which microsurgery is applied requires more sophistica...

Micro-surgery is a clinical practice where the clinician is working at or beyond the threshold of human dexterity. The tools available to surgeons are conventional in their design, and this provides a limit to what can be achieved. This paper describes considerations and possible methods for applying new technologies to assist in practice.

Reports on automated sensing techniques that have been developed for two automated tool systems for clinical applications. The examples described are for controlling tool penetration through and on the surface of tissue interfaces, in the form of a micro-drill and a steerable endoscope tip, respectively. As a result of interpreting multi-sensory da...

This paper reports on sensing techniques developed for tool systems in clinical application. The examples described are for controlling tool penetration through and on the surface of tissue interfaces in the form of a micro-drill and steerable endoscope tip respectively. It is shown that as automatically interpreting multi sensory information, it i...

First Page of the Article

Hypothalamic-pituitary gonadal function is commonly altered in dialysis patients. Even though an improvement in general status and well-being has been noted after recombinant human erythropoietin supplementation, no significant changes were observed in the sex hormone profile. Pituitary gonadal axis as well as 5 alpha-reduced androgen glucosidurona...

Hypothalamic-pituitary gonadal function is commonly altered in dialysis patients. Even though an improvement in general status and well-being has been noted after recombinant human erythropoietin supplementation, no significant changes were observed in the sex hormone profile. Pituitary gonadal axis as well as 5 alpha-reduced androgen glucosidurona...

Thermal diffusion probe method is used to evaluate he testicular tissue blood flow for diagnosis of the varicocele and for verifying the results of surgery. The probe consist of a transient self-heated thermistor at constant temperature increment located at the tip of a stainless steel needle. Tissue blood flow is determined by using of coupled tis...

Based on a complex multi-level compartmentation model of the human penis, the penile arterial tree is modelled at different levels with fractal geometry, with Finite Element Method, with transmission line analogies. The net result is the simulation of the resistance-capacitance mechanisms in the low-pressure compartment of the dorsal artery and in...

Testicular descent is a complex mechanism influenced by hormonal and anatomical factors. Whatever the age of the patient or the descent technique used for either one or both testes, there is a risk of degeneration and sterility counts. Anatomical studies and the results of sperm are important, hence the importance of establishing a precise anatomic...

Extrinsic and/or intrinsic thermoregulation of the testis represents a controversial area in the regulation of spermatogenesis and fertility1. The application of scrotal hypothermia devices (improperly called testicular hypothermia devices) in clinical field2,3 and the introduction of simulation models of the counter-current heat exchange mechanism...

Using vascular fractal geometries, the coupling between elastic network deformation and vascular branching pattern modification under simulated controlled skin expansion is described. The simulation model is based on two fundamental biological considerations: the organization of the elastic network in meshes of pre-established geometric configurati...

A new reconstructive microsurgical model of the epididymo-deferential complex was performed in the rat to study the plastic adaptation of the distal epididymal tubule in transposition and/or substitution procedures. The model consists of three steps: endoluminal stripping of the mucosa of the proximal half of the vas deferens; pull-through techniqu...

Analytical descriptors of three-dimensional geometry of human organs such as the heart, which have been recently introduced, are described. These are the shape engram and geometrical normogram. The application of the descriptors to the female breast is discussed. Through the experimental selection and utilization of the most congruent analytical de...

The realization of (bio)-prosthesis and of bioengineering models of human organs represents the new frontier in the field of reconstructive surgery and urology. The successful application of these prosthesis and the transposition of autologous free tissue transplantations are sustained by the realization of computer-assisted simulation models of hu...

The countercurrent heat-exchange mechanism involving the spermatic artery and the pampiniform plexus represents the basic system that controls testes temperature in order to preserve a normal spermatogenesis. Poor semen caused by elevated temperature due to intrinsic abnormality of the testes was improved with testicular hypothermia devices. A comp...

A novel simulation method for planning a skin wound suture is proposed according to the principles of biogeometry, using a finite-element approach. The skin mesh program (CASMeD II) is used to select the suture axis and to determine the minimal distribution of the tension forces on the suture points of the suture line. The damping effect of the con...

Electrical activity of the colon was investigated in the postoperative period in 12 patients, 1 to 6 days after cholecystectomy. The polygraphic records are obtained during 2 hours each day late in the morning (10-12 h) in a preprandial situation from serosal implantation of bipolar copper wires inserted into each circular and longitudinal layer in...

First results of the comparison between the electrical activity of taenia coli and circular muscle are described. Experimental techniques consisted in recording electrical activity for 83 h in 12 patients during the post-operative period after cholecystectomy. Bipolar wire electrodes were surgically inserted in each muscle of the transverse colon's...

According to new trends and terms in microsurgery, the intra-serous proximal hemideferentectomy is compared to the classical vasectomy in rat. The effects of these surgical models are evaluated on morphological and functional bases. The anatomo-pathological parameters considered (stenosis and leakage of the anastomosis of the epididymal tubule cons...

The histopathological aspects of the testis in rat after intra-serous proximal hemideferentectomy and end-to-end tubulo-vasostomy are evaluated. The histomorphometric variations of the convoluted seminiferous tubules and the quantitative modifications of the stages of spermatogenesis are correlated with the obstruction's degree of the tubulo-defere...

The function of a new experimental microsurgical model of tubulovasostomy is evaluated. The model is represented by an end-to-end tubulodeferential anastomosis after removal of the proximal (juxtaepididymal) half of the vas deferens and segmental unfolding of the distal part of the epididymal tubule. Both anastomosed segments are evaluated for resp...

The wall of the eye bulbs of 15 chick embryos, immediately after their transfer to Hanks fluid, was irradiated with a CO2 laser, focused on the 12th conjunctival papilla or on its prospective area. This 'in vitro' irradiation was performed under the following main parameters: (a) beam power congruent to 4W; (b) exposure time = 1/30 sec; (c) thickne...

Cathodic Ray Tubes Screen (CRT's) equipping personal computers and televisions emit a large spectrum of radiations responsible of some biological actions. Development disturbances in Drosophila (increase of the total dead ratio and of the development time) and chick embryos (malformations) have been observed. Behavioural and physiological disorders...

Cathodic Ray Tubes Screens equipping personal computers and televisions, emit a spectrum of radiations responsible of noxious effects previously studied in workers and children. With the aim of protecting the users, voluntary workers and children were exposed in front of a CRTs equipped or not with the EMF-Bioshield ® protecting device. Electric (1...

A test group of 37 male patients with erectile dysfunction (ED) undergoing consultation in the Andrology Department at St. Louis Hospital (Paris) were measured by a device called the Electro Interstitial Scanner (EIS) System. All the patients presented neurovegetative dystonia with high stress levels and an increased level of catecholamine. None of...