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It attaches to each vessel ending with opposite directed microspikes and reaches complete expansion at body temperature, using the nitinol shape memory capacity. The main purpose of this first in vivo trial is to evaluate the mechanical viability of the device and its immediate and early functionality. A recuperation study with seven New Zealand White rabbits was designed. A 1.96\u2009mm outer diameter prototype of the new device was placed on the right femoral artery of each rabbit. Each anastomosis was reassessed on the seventh postoperative day to reevaluate the device function. The average anastomosis time with the new device was 18\u2009min and 45 seg (\u00b10.3 seg). It could be easily placed in all the cases with an average of 1.14 (1) complementary stitches needed to achieve a sealed anastomosis. Patency test was positive for all the cases on the immediate assessment. On the 1 week revision surgery, patency test was negative for the seven rabbits due to blood clot formation inside the device. The new device that we have developed is simple to use and shows correct immediate functionality. On the early assessment, the presence of a foreign body in the endoluminal space caused blood clot formation. We speculate that a heparin eluting version of the device could avoid thrombosis formation. We consider that the results obtained can be valuable for other endoluminal sutureless devices.<\/jats:p>","DOI":"10.1115\/1.4066555","type":"journal-article","created":{"date-parts":[[2024,9,14]],"date-time":"2024-09-14T03:48:43Z","timestamp":1726285723000},"update-policy":"https:\/\/doi.org\/10.1115\/crossmarkpolicy-asme","source":"Crossref","is-referenced-by-count":1,"title":["Mechanical Viability and Functionality Assessment of a New Sutureless Endoluminal Microvascular Device: A Preliminary In Vivo Rabbit Study"],"prefix":"10.1115","volume":"19","author":[{"given":"Jordi","family":"Descarrega","sequence":"first","affiliation":[{"name":"Plastic Surgery Department, Hospital Cl\u00ednic de Barcelona , Barcelona 08036, Spain ; , Barcelona 08028, Spain"},{"name":"VessConnect , Barcelona 08036, Spain ; , Barcelona 08028, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joan","family":"Fontdevila","sequence":"additional","affiliation":[{"name":"Plastic Surgery Department, Hospital Cl\u00ednic de Barcelona , Barcelona 08036, Spain ; , Barcelona 08028, Spain"},{"name":"VessConnect , Barcelona 08036, Spain ; , Barcelona 08028, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erica","family":"Segura","sequence":"additional","affiliation":[{"name":"Plastic Surgery Department, Hospital Cl\u00ednic de Barcelona , Barcelona 08036, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H\u00e9ctor","family":"Oyonate","sequence":"additional","affiliation":[{"name":"Plastic Surgery Department, Hospital Cl\u00ednic de Barcelona , Barcelona 08036, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"German","family":"Bellemi","sequence":"additional","affiliation":[{"name":"Ingenier\u00eda Biom\u00e9dica, Universitat Polit\u00e8cnica de Catalunya , Barcelona 08019, Spain"},{"id":[{"id":"https:\/\/ror.org\/03mb6wj31","id-type":"ROR","asserted-by":"publisher"}],"name":"Universitat Polit\u00e8cnica de Catalunya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brittany","family":"Taylor","sequence":"additional","affiliation":[{"name":"Patient Experience Program, Consorci Institut d'Investigacions Biom\u00e8diques August Pi i Sunyer , Barcelona 08036, Spain"},{"id":[{"id":"https:\/\/ror.org\/054vayn55","id-type":"ROR","asserted-by":"publisher"}],"name":"Consorci Institut D'Investigacions Biomediques August Pi I Sunyer"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"33","published-online":{"date-parts":[[2024,10,22]]},"reference":[{"issue":"3","key":"2025022007295587700_bib1","doi-asserted-by":"crossref","first-page":"324","DOI":"10.1097\/SAP.0000000000002211","article-title":"A Systematic Review of Learning Curves in Plastic and Reconstructive Surgery Procedures","volume":"85","year":"2020","journal-title":"Ann. 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