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Syringe with breakable plunger for arterial blood gas sample collection

A plunger rod and fluid technology, applied in the field of fluid collection components with breakable plunger rods, can solve problems such as not being able to be used again

Active Publication Date: 2014-07-30
BECTON DICKINSON & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This additional force causes the breakable link to be sheared, thereby disengaging the main body of the plunger rod from the distal portion, so that the syringe cannot be used again

Method used

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  • Syringe with breakable plunger for arterial blood gas sample collection
  • Syringe with breakable plunger for arterial blood gas sample collection
  • Syringe with breakable plunger for arterial blood gas sample collection

Examples

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Embodiment Construction

[0024] In the following description, the terms "upper", "lower", "right", "left", "vertical", "horizontal", "top", "bottom", "lateral", "longitudinal" and their Derivatives of the invention will be described as if the invention were oriented in the drawings. However, it should be understood that the invention may assume various alternative variations unless explicitly stated to the contrary. It should also be understood that the particular arrangements shown in the drawings and described in the following description are only exemplary embodiments of the invention. Therefore, specific dimensions and other physical characteristics regarding the embodiments described herein are not to be considered as limiting.

[0025] The term "proximal" as used herein refers to the location on a blood collection assembly according to an embodiment of the present invention that is closest to the clinician using the device and furthest from the patient for whom the device is intended to be used...

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PUM

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Abstract

A fluid collection assembly and method for use thereof is provided including a barrel with a plunger rod slidably inserted is disclosed. The assembly and method are particularly useful in the collection of arterial blood. The plunger rod includes a proximal portion, a distal portion with a stopper, and a breakable connector between the proximal and distal portions. In use, the assembly is primed with a liquid anticoagulant, the breakable connection is broken, and a fluid sample is collected with the arterial pressure causing the distal portion of the plunger rod to travel in a proximal direction along the barrel and contact an annular flange extending within the barrel. After collection, a tip cap can be applied to the assembly to prevent any spillage of the fluid sample during handling, storage, and transportation.

Description

technical field [0001] The present invention relates to fluid collection assemblies and methods of using the same, and more particularly to a fluid collection assembly including a breakable plunger rod for use in arterial blood collection. The present invention also relates to a fluid collection assembly configured to contain an anticoagulant for connection to a fluid sample immediately upon collection of the sample. Background technique [0002] Arterial blood collection syringes are used to draw and collect samples of arterial blood from patients. Once the blood sample is collected, it is subjected to diagnostic analysis for gases, electrolytes, metabolites, and other factors indicative of the patient's condition. A variety of syringes are designed for collecting arterial blood samples and they mainly include the components used in a hypodermic syringe, namely a plastic or glass syringe barrel, a sealing elastomer plug, and a plunger rod. Additionally, some arterial bloo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/315A61M5/50A61B5/153A61B5/15
CPCA61M5/31501A61B5/153A61M5/31511A61B5/150236A61B5/150244A61B5/150259A61B5/150389A61B5/150503A61B5/150732A61B5/150755A61B5/150908A61B5/15003
Inventor L·洪辛L·江亨
Owner BECTON DICKINSON & CO
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