Chuchnowska Iwona, Białas Katarzyna
Faculty of Biomedical Engineering, Silesian University of Technology, Roosevelta 40, 41-800 Zabrze, Poland.
Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, Poland.
Sensors (Basel). 2025 Jan 3;25(1):226. doi: 10.3390/s25010226.
This article presents the authors' design of an electronic stethoscope intended for use during online medical consultations for patient auscultation. The goal of the project was to design an instrument that is durable, user-friendly, and affordable. Existing electronic components were used to create the device and a traditional single-sided chest piece. Three-dimensional printing technology was employed to manufacture the prototype. Following the selection of the material, a static tensile strength test was conducted on the printed samples as part of the pre-implementation investigations. Results: Tests on samples made of PLA with a 50% hexagonal infill demonstrated a tensile strength of 36 MPa and an elongation of 4-5%, which was deemed satisfactory for the intended application in the stethoscope's manufacture. The designed and manufactured electronic stethoscope presented in the article can be connected to headphones or speakers, enabling remote medical consultation. According to the opinion of doctors who tested it, it provides the appropriate sound quality for auscultation. This stethoscope facilitates the rapid detection and recognition of cardiac and respiratory activity in humans.
本文介绍了作者设计的一种电子听诊器，旨在用于在线医疗咨询期间对患者进行听诊。该项目的目标是设计一种耐用、用户友好且价格实惠的仪器。使用现有的电子元件来制造该设备以及传统的单面胸件。采用三维打印技术制造原型。在选定材料后，作为实施前调查的一部分，对打印样品进行了静态拉伸强度测试。结果：对具有50%六边形填充率的聚乳酸（PLA）制成的样品进行测试，其拉伸强度为36兆帕，伸长率为4 - 5%，这对于听诊器制造中的预期应用来说被认为是令人满意的。本文中展示的设计并制造的电子听诊器可以连接到耳机或扬声器，实现远程医疗咨询。根据测试该听诊器的医生的意见，它为听诊提供了合适的音质。这种听诊器有助于快速检测和识别人体的心脏和呼吸活动。
