相关实验视频
Updated: Jul 26, 2025

04:46
The Quantification of Injectability by Mechanical Testing
Published on: May 13, 2020
8.0K
分析了注射器桶体积对性能和用户感知的影响
Krisdiyanto1,2, Raja Ariffin Bin Raja Ghazilla1, M Azuddin1
1CPDM, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia.
Medicine
|June 19, 2023
概括
注射器桶体积影响性能,增加死空间和操作力与更大的体积. 虽然没有影响泄漏,但桶长影响注射控制和环境影响.
科学领域:
- 医疗器械 医疗器械
- 生物医学工程 生物医学工程
- 产品设计 产品设计
背景情况:
- 注射器在类型,形状和桶体积方面存在很大差异.
- 产品的设计,包括桶体积,影响了注射器的性能和用户的感知.
- 了解这些影响对于优化注射器设计和可用性至关重要.
研究的目的:
- 为了研究不同注射器桶体积对设备性能的影响.
- 评估用户对注射器设计和功能的看法.
- 分析桶体积与死空间,操作力和环境影响等因素之间的关系.
主要方法:
- 根据ISO 7886标准对1mL,3mL,5mL和10mL注射器进行分析.
- 用户感知测试,29名受访者使用利克特比例调查问卷.
- 评估死空间,活塞操作力和泄漏.
主要成果:
- 较大的注射器体积与增加的死空间和活塞操作力相关.
- 增加的桶体积导致更大的体积变化与位置.
- 在测试的注射器体积中没有观察到水泄漏.
- 弹筒长度显著影响在注射过程中轻松控制设备.
- 桶体积显示与环境影响的负相关性.
- 安全特征是一致的,在3mL注射器上发现了微小的差异.
结论:
- 注射器桶体积是一个关键的设计参数,影响性能指标和用户体验.
- 与桶体积相关的设计选择对注入控制,环境考虑和整体可用性有影响.
- 根据体积和用户反优化注射器设计的进一步研究是有必要的.
相关概念视频
One-Compartment Open Model for IV Bolus Administration: General Considerations
257
The one-compartment model is a pharmacokinetic tool that models the body as a single, uniform compartment, facilitating the understanding of drug distribution and elimination. This model is particularly beneficial for intravenous (IV) bolus administration, where the drug rapidly circulates throughout the body.
The drug's presence in the body is defined by an equation representing the difference between the rates of drug entry and exit. Key parameters—elimination rate constant,...
The drug's presence in the body is defined by an equation representing the difference between the rates of drug entry and exit. Key parameters—elimination rate constant,...
257
One-Compartment Open Model for IV Bolus Administration: Estimation of Clearance
105
Clearance is a key pharmacokinetic parameter that quantifies the volume of body fluid from which a drug is entirely removed within a specific time frame. It is crucial in assessing how a drug is eliminated from the body and has critical clinical applications.
In the one-compartment open model for intravenous (IV) bolus administration, clearance is estimated by dividing the elimination rate by the plasma drug concentration. This equation leverages the elimination rate constant and the apparent...
In the one-compartment open model for intravenous (IV) bolus administration, clearance is estimated by dividing the elimination rate by the plasma drug concentration. This equation leverages the elimination rate constant and the apparent...
105
One-Compartment Open Model for IV Bolus Administration: Estimation of Elimination Rate Constant, Half-Life and Volume of Distribution
351
The one-compartment open model is a simplified approach used in pharmacokinetics to understand the distribution and elimination of a drug administered through an intravenous bolus. This model assumes rapid drug dispersal throughout the body and elimination using a first-order process. Key pharmacokinetic parameters, such as the elimination rate constant (k), half-life (t1/2), and the apparent volume of distribution (Vd), can be estimated from this model. The elimination rate is calculated...
351
Compartment Models: Single-Compartment Model
2.3K
The single-compartment model serves as a simplified representation of the human body. This model assumes that the body functions as a single, well-mixed open compartment. When a drug is administered intravenously, it enters the body and quickly distributes uniformly. The drug then undergoes biotransformation and elimination, ultimately leaving the body. The volume of this compartment is referred to as the apparent volume of distribution into which the drug can uniformly distribute. In this...
2.3K
Volume of Distribution
256
The apparent volume of distribution (Vd) is a crucial pharmacokinetic parameter representing the hypothetical body fluid volume into which a drug disperses. It is calculated based on the total amount of drug in the body (estimated from the administered dose and bioavailability) divided by the plasma drug concentration. The total amount of drug in the body does not directly refer to the dose given but is derived by accounting for absorption, distribution, metabolism, and excretion processes.
256

