Polish Researchers 3D Printing Novel Holdfast Devices for Atrial Procedure https://ift.tt/2Zg26DD In ‘Evaluation of Local Tissue Reaction After the Application of a 3D Printed Novel Holdfast Device for Left Atrial Appendage Exclusion,’ researchers from Poland begin to experiment even further with 3D printed devices for assistance in cardiac procedures. Here, they experiment with the use of a new holdfast device meant ultimately to help eliminate chances of ischemic stroke. Employing the benefits of SLS 3D printing—with the capabilities to use versatile materials with even greater affordability—the researchers evaluated the results of their new device, implanting the devices in a group of 30 swine. A finger-like extension of the left atrium, the left atrial appendage is a non-functional part of the left atrium. It happens to be a ‘prime cardiac site’ for thrombus formation, affecting patients with atrial fibrillation more commonly. And while treatment with antithrombotic treatment is widespread, here, the researchers investigate a more comprehensive approach in ‘obliterating the LAA.’ The use of holdfast devices, while effective, has been fraught with disadvantages, from issues with blood leakage to post-insertion adjustments, and lack of flexibility for modifications.
The study allowed the researchers to further test biocompatibility, along with observing post-implementation issues. The device was created in partnership with the Technical University of Gdańsk, Poland, made up of two tubes connected with an elastic bow.
Their goal was to create a low stiffness spring with a ‘highly degressive characteristic of the device.’ They were able to do this through their choice of material and through shifting the bow crossection axis, with the devices implanted into the two swine groups. Safety and biocompatibility were noted, along with biofunctionality. There were no perioperative deaths, and LAA occlusions occurred in all the swine.
3D printing has made huge strides in the medical realm, and definitely within the area of cardiac medicine, from cardiac patches to catheter devices, and even patient-specific heart valves models. What do you think of this news? Let us know your thoughts! Join the discussion of this and other 3D printing topics at 3DPrintBoard.com. [Source / Images: ‘ Evaluation of Local Tissue Reaction After the Application of a 3D Printed Novel Holdfast Device for Left Atrial Appendage Exclusion’] Please enable JavaScript to view the comments powered by Disqus. Printing via 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing https://3dprint.com August 22, 2019 at 02:39AM
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