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Syringe imaging systems

A technology of imaging systems and syringes, applied in hypodermic injection devices, control/regulatory systems, instruments, etc., to solve problems such as non-delivery

Inactive Publication Date: 2011-02-23
CAREFUSION 303 INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the flow rate is low, such a system will result in a longer period of non-delivery before determining that the syringe is about to empty

Method used

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Embodiment Construction

[0016] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the disclosed and claimed embodiments. It will be apparent, however, to one skilled in the art that these embodiments may be practiced without some of these specific details. In other instances, well-known structures and techniques have not been shown in detail to avoid unnecessarily obscuring the present invention.

[0017] According to certain embodiments, a syringe imaging system provides several benefits in drug delivery via a syringe infusion pump. For example, through auto-injector recognition in the infusion pump, an accurate flow rate can be provided to any syringe that is physically compatible with the device. Furthermore, removing user intervention from the syringe identification process reduces the likelihood of misidentification and synthetic errors in drug dosing. Finally, by accurately tracking the volume of drug remaining in the...

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PUM

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Abstract

A syringe imaging system for a syringe infusion pump is provided. The system comprises an imaging device configured to capture one or more images of a syringe, and a processor, which is configured to determine, based on the one or more captured images, an internal diameter of the syringe and a distance between a bung and a bottom of the syringe, and to calculate a remaining volume of the syringe based upon the determined internal diameter and distance. A syringe infusion pump is also provided. The pump comprises a housing having a bracket configured to receive a syringe, a syringe driver configured to actuate a plunger of the syringe, an imaging device configured to capture one or more images of the syringe, and a processor. The processor is configured to determine, based on the one or more captured images, an internal diameter of the syringe and a distance between a bung and a bottom of the syringe, and to calculate a remaining volume of the syringe based upon the determined internal diameter and distance.

Description

technical field [0001] Embodiments of the invention relate generally to medical devices and in particular to syringe imaging systems. Background technique [0002] Syringe infusion pumps are commonly used to deliver precise doses of medication injected via disposable syringes for medical treatment. Because the solution can be accurately delivered by precisely pushing the plunger of the syringe down the barrel of the syringe at a continuous rate, they are particularly effective for injecting small doses of solution over long periods of time requiring high accuracy. [0003] In order to achieve accurate flow rates and determine the usable and remaining volume of the syringe, it is desirable to know the inner diameter of the syringe. In many syringe infusion pumps, user intervention is required to provide this information to the pump. For example, in some systems the outer diameter of a syringe is measured by a linear potentiometer, and the system presents the user with a lis...

Claims

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Application Information

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IPC IPC(8): A61M5/168A61M5/145
CPCA61M2205/3379A61M2205/3306A61M5/1684A61M2205/6063A61M2205/3389A61M2205/33A61M5/14546G01F22/00G01F25/0092
Inventor I·卡迪厄M·G·莫里斯
Owner CAREFUSION 303 INC
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