A novel arterial coupler with non-return snap-fit connection approach optimized arterial end-to-end anastomotic technique: An experimental study

Purpose: Hand-sewn anastomosis as the gold standard of vascular anastomosis cannot fully meet the requirements of vascular anastomosis in speed and quality. Various vascular couplers have been developed to ameliorate this situation. Most of them are mainly used for venous anastomosis rather than art...

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Main Authors: Hong-Bo Guo, Mo-Fei Wang, Ren-Qi Yin, Kang-Kang Zhi
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Chinese Journal of Traumatology
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Online Access:http://www.sciencedirect.com/science/article/pii/S1008127524001184
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author Hong-Bo Guo
Mo-Fei Wang
Ren-Qi Yin
Kang-Kang Zhi
author_facet Hong-Bo Guo
Mo-Fei Wang
Ren-Qi Yin
Kang-Kang Zhi
author_sort Hong-Bo Guo
collection DOAJ
description Purpose: Hand-sewn anastomosis as the gold standard of vascular anastomosis cannot fully meet the requirements of vascular anastomosis in speed and quality. Various vascular couplers have been developed to ameliorate this situation. Most of them are mainly used for venous anastomosis rather than arterial anastomosis. Although it is generally acknowledged that in almost all operations involving vascular reconstruction, it is the arteries that need to be anastomosed faster and more accurately and not the veins. A dedicated device is needed for creating arterial anastomosis in an easy, timesaving, less damaging but reliable procedure. Therefore, we plan to develop a novel arterial coupler device and test pre-clinical safety and effectiveness. Methods: In this cohort study, the rationality of this novel arterial coupler was preliminarily tested by finite element analysis before it was manufactured. Several factors restrict the use of vascular couplers in arterial anastomosis, such as arterial eversion, fixation, etc. The manufactured arterial couplers underwent in vitro and in vivo experiments. In vitro, isolated arteries of beagles were anastomosed with the assistance of an arterial coupler, and the anastomosed arteries were evaluated through anti-traction tests. In animal experiments, the bilateral femoral arteries of 5 beagles served as a control group. After dissection, the femoral artery on one side was randomly selected to be anastomosed with a quick arterial coupler (QAC) (QAC group), and the femoral artery on the other side was anastomosed by the same person using an end-to-end suture technique with a 6-0 Prolene suture (suture group). The bilateral femoral arteries of 5 beagles were used for coupler-assisted anastomosis and hand-sewn anastomosis in vivo, respectively. Success rate, blood loss, anastomotic time, clamp time, total operation time, and patency rate were recorded. The patency of anastomosed arteries was assessed using vascular Doppler ultrasound, electromagnetic flowmeter, and pathological examination (6 weeks after surgery). Results: As a novel arterial coupler, QAC was successfully designed and manufactured by using poly lactic-co-glycolic acid raw materials and 3-dimensions printing technology. Its rationality was preliminarily tested through finite element analysis and related mechanical analysis methods. The isolated arteries were successfully anastomosed with the assistance of QAC in vitro testing, which showed good anti-traction properties. In animal studies, QAC-assisted arterial anastomosis has superior profiles compared to hand-sewn anastomosis in anastomotic time (7.80 ± 1.41 vs. 16.38 ± 1.04 min), clamp time (8.80 ± 1.41 vs. 14.14 ± 1.57 min), and total operation time (46.64 ± 2.38 vs. 51.96 ± 3.65 min). The results of electromagnetic flowmeter, vascular Doppler ultrasound, and pathological examination showed that QAC-assisted anastomotic arteries were superior to hand-sewn arteries in terms of postoperative blood flow (16.86 ± 3.93 vs. 10.36 ± 0.92 mL/min) and vascular patency in 6 weeks after surgery. Conclusion: QAC is a well-designed and easily maneuverable device specialized for end-to-end arterial anastomosis. Application of this device may decrease thermal ischemia time and improve the patency of anastomotic arteries, thus, improving outcomes.
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spelling doaj-art-aac34f255e9444b28273b603b24322ee2025-01-26T05:03:28ZengElsevierChinese Journal of Traumatology1008-12752025-01-012811321A novel arterial coupler with non-return snap-fit connection approach optimized arterial end-to-end anastomotic technique: An experimental studyHong-Bo Guo0Mo-Fei Wang1Ren-Qi Yin2Kang-Kang Zhi3Department of Vascular and Endovascular Surgery, Changzheng Hospital, Naval Medical University, Shanghai, 200003, ChinaSchool of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, ChinaDepartment of Vascular and Endovascular Surgery, Changzheng Hospital, Naval Medical University, Shanghai, 200003, ChinaDepartment of Vascular and Endovascular Surgery, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China; Corresponding author.Purpose: Hand-sewn anastomosis as the gold standard of vascular anastomosis cannot fully meet the requirements of vascular anastomosis in speed and quality. Various vascular couplers have been developed to ameliorate this situation. Most of them are mainly used for venous anastomosis rather than arterial anastomosis. Although it is generally acknowledged that in almost all operations involving vascular reconstruction, it is the arteries that need to be anastomosed faster and more accurately and not the veins. A dedicated device is needed for creating arterial anastomosis in an easy, timesaving, less damaging but reliable procedure. Therefore, we plan to develop a novel arterial coupler device and test pre-clinical safety and effectiveness. Methods: In this cohort study, the rationality of this novel arterial coupler was preliminarily tested by finite element analysis before it was manufactured. Several factors restrict the use of vascular couplers in arterial anastomosis, such as arterial eversion, fixation, etc. The manufactured arterial couplers underwent in vitro and in vivo experiments. In vitro, isolated arteries of beagles were anastomosed with the assistance of an arterial coupler, and the anastomosed arteries were evaluated through anti-traction tests. In animal experiments, the bilateral femoral arteries of 5 beagles served as a control group. After dissection, the femoral artery on one side was randomly selected to be anastomosed with a quick arterial coupler (QAC) (QAC group), and the femoral artery on the other side was anastomosed by the same person using an end-to-end suture technique with a 6-0 Prolene suture (suture group). The bilateral femoral arteries of 5 beagles were used for coupler-assisted anastomosis and hand-sewn anastomosis in vivo, respectively. Success rate, blood loss, anastomotic time, clamp time, total operation time, and patency rate were recorded. The patency of anastomosed arteries was assessed using vascular Doppler ultrasound, electromagnetic flowmeter, and pathological examination (6 weeks after surgery). Results: As a novel arterial coupler, QAC was successfully designed and manufactured by using poly lactic-co-glycolic acid raw materials and 3-dimensions printing technology. Its rationality was preliminarily tested through finite element analysis and related mechanical analysis methods. The isolated arteries were successfully anastomosed with the assistance of QAC in vitro testing, which showed good anti-traction properties. In animal studies, QAC-assisted arterial anastomosis has superior profiles compared to hand-sewn anastomosis in anastomotic time (7.80 ± 1.41 vs. 16.38 ± 1.04 min), clamp time (8.80 ± 1.41 vs. 14.14 ± 1.57 min), and total operation time (46.64 ± 2.38 vs. 51.96 ± 3.65 min). The results of electromagnetic flowmeter, vascular Doppler ultrasound, and pathological examination showed that QAC-assisted anastomotic arteries were superior to hand-sewn arteries in terms of postoperative blood flow (16.86 ± 3.93 vs. 10.36 ± 0.92 mL/min) and vascular patency in 6 weeks after surgery. Conclusion: QAC is a well-designed and easily maneuverable device specialized for end-to-end arterial anastomosis. Application of this device may decrease thermal ischemia time and improve the patency of anastomotic arteries, thus, improving outcomes.http://www.sciencedirect.com/science/article/pii/S1008127524001184CouplerVascular anastomosisArterial anastomosisEnd-to-endNovel device
spellingShingle Hong-Bo Guo
Mo-Fei Wang
Ren-Qi Yin
Kang-Kang Zhi
A novel arterial coupler with non-return snap-fit connection approach optimized arterial end-to-end anastomotic technique: An experimental study
Chinese Journal of Traumatology
Coupler
Vascular anastomosis
Arterial anastomosis
End-to-end
Novel device
title A novel arterial coupler with non-return snap-fit connection approach optimized arterial end-to-end anastomotic technique: An experimental study
title_full A novel arterial coupler with non-return snap-fit connection approach optimized arterial end-to-end anastomotic technique: An experimental study
title_fullStr A novel arterial coupler with non-return snap-fit connection approach optimized arterial end-to-end anastomotic technique: An experimental study
title_full_unstemmed A novel arterial coupler with non-return snap-fit connection approach optimized arterial end-to-end anastomotic technique: An experimental study
title_short A novel arterial coupler with non-return snap-fit connection approach optimized arterial end-to-end anastomotic technique: An experimental study
title_sort novel arterial coupler with non return snap fit connection approach optimized arterial end to end anastomotic technique an experimental study
topic Coupler
Vascular anastomosis
Arterial anastomosis
End-to-end
Novel device
url http://www.sciencedirect.com/science/article/pii/S1008127524001184
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