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Fabrication of a Novel Absorbable Vascular Anastomosis Device and Testing in a Pig Liver Transplantation Model

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Affiliated Author(s)
박의준정운혁권선영김형태손대구
Alternative Author(s)
Park, Ui JunJeong, Woon HyeokKwon, Sun YoungKim, Hyoung TaeSon, Dae Gu
Journal Title
Annals of Biomedical Engineering
ISSN
1573-9686
Issued Date
2019
Keyword
Vascular surgeryBlood vesselBiocompatibility
Abstract
An absorbable vascular anastomosis device (AVAD) was fabricated and tested in pig liver transplantation experiments. We prepared biodegradable copolymers with various ratios of L-lactide: glycolide and tested their properties including inherent viscosity, in vitro biodegradation, and tensile strength. The mechanical and physical properties of the finally selected copolymers were analyzed according to decomposition time. The AVAD, consisting of two inner rings and one coupler, was fabricated with 5-, 15-, and 20-mm diameter sizes using an injection molding machine. Based on changes in the overall mechanical and physical properties, it is believed that the AVAD will maintain its shape without deformation while connecting the blood vessels to external force for at least 3 weeks. Four mini-pigs underwent liver transplantation with AVAD using livers obtained from swine leukocyte antigen–identical siblings. Anastomoses was achieved in all four cases. In case 4, an autopsy conducted at 4 months revealed that the AVAD was absorbed and the anastomosis was intact, demonstrating the success of the AVAD in the pig liver transplantation experiments and the feasibility of using an AVAD in organ transplantation.
Department
Dept. of Surgery (외과학)
Dept. of Plastic Surgery (성형외과학)
Dept. of Pathology (병리학)
Publisher
School of Medicine (의과대학)
Citation
UI JUN PARK et al. (2019). Fabrication of a Novel Absorbable Vascular Anastomosis Device and Testing in a Pig Liver Transplantation Model. Annals of Biomedical Engineering, 47(4), 1063–1077. doi: 10.1007/s10439-019-02212-5
Type
Article
ISSN
1573-9686
DOI
10.1007/s10439-019-02212-5
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/41916
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Pathology (병리학)
1. School of Medicine (의과대학) > Dept. of Plastic Surgery (성형외과학)
1. School of Medicine (의과대학) > Dept. of Surgery (외과학)
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