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Updated: Oct 27, 2025
Evaluation of a Novel Laser-assisted Coronary Anastomotic Connector - the Trinity Clip - in a Porcine Off-pump Bypass Model
Published on: November 24, 2014
Animal Study of a Novel Device for Clampless Proximal Anastomosis in Coronary Bypass Surgery
Roi Glam1, Mahli Raad1, Gil Bolotin1
1Department of Cardiothoracic Surgery, Rambam Health Care Campus, Haifa, Israel.
Purpose:
Limitations of existing techniques for clampless proximal anastomosis (CPA) in coronary artery bypass grafting include air emboli and excessive bleeding. This study evaluated the safety and performance of a new device for performing CPA.
Description:
The device includes a temporary adjustable sealing element that is connected by a catheter to a handle that controls its opening and closure. An aortic punch is mounted on the catheter and activated by a detachable handle.
Evaluation:
Six adult female swine underwent partial coronary artery bypass grafting that included construction of a CPA using autologous arterial or venous conduits. During anastomosis construction, good sealing was achieved in all cases, and a blower was not needed in 4 of 6 animals. In the first 2 cases, the blower was intermittently used in 14 % of the entire anastomosis construction time. A mean flow rate of 140.0 ± 52.9 mL/min was measured for the arterial grafts and 666.7 ± 230.9 mL/min for the venous grafts.
Conclusions:
The VIOLA device (Vascular Graft Solutions, Tel Aviv, Israel) is safe and associated with good hemostasis and minimal use of a blower during CPA construction in a swine model.
