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Updated: Jul 7, 2026

Optocardiography and Electrophysiology Studies of Ex Vivo Langendorff-perfused Hearts
Published on: November 7, 2019
[Design and experimental application of a device for direct vision intracardiac operation without cardiopulmonary
Kai-Can Cai1, Wu-Jun Wang, Wen-Lin Wang
1Department of Cardiothoracic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. cai_kcan@yahoo.com.cn
Objective:
To design a device for direct vision intracardiac operation without cardiopulmonary bypass, and assess its applicability preliminarily.
Methods:
The device was designed according to the clinical needs of intracardiac operation and used in operations for repairing atrial septal defect in 5 ex vivo porcine heart models. The practical applicability of this device was thoroughly tested and the results of the operations were evaluated.
Results And Conclusion:
Direct vision operation for repairing atrial septal defect was successfully performed using this device, which can be a well applicable in some intracardiac operations, but its clinical effects need further evaluation.

