一个小型化的双带圆极化植入式天线用于血液透析
Zhiwei Song1, Yuchao Wang1, Youwei Shi1
1The School of Electrical Engineering, Xinjiang University, Huarui Street 777#, Shuimogou District, Urumqi 830047, China.
Sensors (Basel, Switzerland)
|July 27, 2024
概括
一个新的微型植入式天线增强了用于血液透析的无线动脉静脉移植监测设备 (WAGMD). 这种双频天线可确保可靠的数据传输,以改善患者护理.
科学领域:
- 生物医学工程 生物医学工程
- 可以植入的天线
- 无线健康监测无线健康监测
背景情况:
- 血液透析依赖于动脉静脉移植 (AVG),但数据传输的可靠性是一个挑战.
- 现有的AVG无线监控解决方案在稳定性和小型化方面存在局限性.
研究的目的:
- 为无线动脉静脉移植监测设备 (WAGMD) 设计和评估一个小型的双带循环极化植入式天线.
- 为了提高血液透析应用WAGMD数据传输的可靠性和稳定性.
主要方法:
- 一个小型的双频段 (1.4GHz和2.45GHz) 循环偏振植入式天线是使用矩形蛇形结构和匹配槽设计的.
- 该天线被集成到WAGMD中,并在同质的人体组织和现实的前臂模型中模拟.
- 实验验证是在碎的猪肉环境中进行的,以评估性能.
主要成果:
- 该天线实现了9.144 mm3的紧体积,有效3 dB轴比带宽为11.43% (1.4 GHz) 和12.65% (2.45 GHz).
- 模拟的峰值收益为 -19.55 dBi (1.4 GHz) 和 -22.85 dBi (2.45 GHz). 模拟的峰值收益为 -19.55 dBi (1.4 GHz) 和 -22.85 dBi (2.45 GHz).
- 测量结果与模拟结果非常相匹配,证明了天线的可行性.
结论:
- 设计的小型化双带天线适合集成到WAGMD中,增强血液透析的无线监控能力.
- 这一发展为可植入医疗器械中可靠和稳定的数据传输提供了有前途的解决方案.
相关概念视频
Dialysis
Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
Peritoneal Dialysis I: Introduction and Procedure
Peritoneal dialysis (PD) is a procedure that facilitates the exchange of solutes, waste products, electrolytes, and excess fluid between the blood in the peritoneal capillaries and a dialysis solution introduced into the peritoneal cavity.Principles of Peritoneal Dialysis (PD)Diffusion: Waste products such as urea and electrolytes move from high concentrations in the blood to low concentrations in the dialysate across the peritoneal membrane. This mechanism is driven by the concentration...
Continuous Renal Replacement Therapy
Continuous Renal Replacement Therapy, also known as CRRT, is a procedural treatment for acute kidney injury (AKI) that gradually removes uremic toxins and fluids while maintaining acid-base balance and stabilizing electrolytes. It is particularly useful for hemodynamically unstable patients. Unlike intermittent hemodialysis, which is faster, CRRT provides a gentler approach over 24 hours, closely mimicking the function of natural kidneys. However, CRRT is not ideal for patients with...
Hemodialysis I: Introduction
Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
Hemodialysis II: Procedure and Complications
DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...


