使用四点阻抗来检测和定位在耳植入期间的血液
概括
这项研究引入了一种使用耳植入物阻抗的新型生物传感器,用于在手术期间检测血液. 这种实时检测可能有助于保护听力,防止耳损伤出血.
科学领域:
- 生物医学工程 生物医学工程
- 医疗器械技术 医疗器械技术
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
背景情况:
- 生物传感对于植入式医疗器械至关重要.
- 如果检测到手术内出血,耳植入物可以保持自然听力.
- 耳中的血液会导致听力损失和损害设备的功能.
研究的目的:
- 开发和验证一个生物传感器使用商业耳植入物实时检测血液.
- 评估四点阻抗测量以识别血液存在和度的能力.
- 评估本生物传感器在手术内外科手术指导方面的潜力.
主要方法:
- 四点阻抗测量直接从商业耳植入器中进行.
- 该系统使用正方形波刺激来测量盐溶液中不同全血度的阻抗.
- 在体外研究中使用3D耳模型来模拟手术插入和血液注射事件.
主要成果:
- 耳植入物的阻抗成功地使血液度在盐水中的差异化.
- 灵敏度分析显示检测出血度在12%至21%之间.
- 在体外试验证明了随着电极阵列的血液的瞬间检测和定位.
结论:
- 通过耳植入物测量的四点阻抗作为耳内血液的实时生物传感器.
- 这项技术可以为外科医生提供关键的手术内信息,以潜在地改善听力结果.
- 适应耳植入物用于生物感知提供了一种有希望的方法来缓解植入期间的听力损失.
相关概念视频
01:21Sites for measuring blood pressure
Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
The Brachial Artery: Primary Site for Blood Pressure Measurement
01:30Equipments Used To Measure Blood Pressure
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
01:23Assessment of blood pressure in brachial artery(two-step method)
Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
01:19Assessing Blood pressure using a doppler ultrasound
To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
01:28Special considerations while measuring blood pressure
When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
01:17Measurement of Blood Pressure
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a stethoscope.