Objective: to develop a model of training in video-surgery, of low cost and that uses a smartphone as an image-generating source. Methods: We developed a 38cm high, 40cm wide, 40cm long hexagonal-shaped training box, with a front opening of 12x8 cm for coupling the smartphone. The internal illumination is made with LED lamps and for the support of the smartphone, we used a selfie stick, fixed in the upper part of the box, that allows control of height, distance, angulation, and the coupling of devices with different formats. We selected 20 undergraduate students without previous training in video-surgery, who performed four exercises in the box, with assessment of the time and amount of errors in the execution of the tasks. Each student completed the training for three consecutive weeks. We collected the data in spreadsheets for later analysis. Results: Nineteen students completed the training program, with significant improvement in the times and in the number of errors. Conclusion: the developed model was feasible and promoted the acquisition of skills in this group of students. In addition, it presents low cost, is portable and uses common equipment, such as smartphones.

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IVPerconditioning associated to hypertonic saline solution on liver function improvement after ischemia/reperfusion injury 1 6-Experimental Surgery 949Perconditioning associated to hypertonic saline solution on liver function improvement after ischemia/reperfusion injury Ribeiro Júnior RFG et al. Acta Cir Bras. 2017;32(11):949-955

Purpose: To evaluate incisional surgical wound healing in rats using Rose Hip (Rosa rubiginosa L.) oil.

Objective: To evaluate new techniques and improvements in surgical instruments related to intestinal anastomosis procedures. Methods: A search was conducted on the free database of patents from the National Institute of Industrial Patent Office (INPI) and The United States Patent and Trademark Office (USPTO). Were analyzed all occurrences between 2012 and 2016 related to experimental surgery and intestinal anastomosis. The requests for patents were examined individually and the data collected was the nationality of the applicant, if was physical (PP) or legal (LP) person and if was innovation or invention. At the end, a comparative analysis between the two institutions was performed. Results:  In INPI was found only 5 occurrences. All of them were deposited by legal entity and were inventions. In addition, only one was a national request. In USPTO database, 65 occurrences met the inclusion criteria. Of these, 48 were national applications and only 5 were filed by physical person. Conclusion: More requests were found in US database, predominating national trustee and greater solicitation to inventions than Brazilian database. The main applications for patents are invention of surgical instruments, the development of new biological glues and improvement of mechanical sutures.   Keywords: patents, gastroenterology, surgical anastomosis.