Differential type photoelectric transfusion alarm device and alarm method thereof

An alarm device and differential technology, applied in the field of medical devices, can solve the problems of prone to false alarms, low reliability, and omissions, and achieve the effect of solving false alarms and omissions, and improving sensitivity and reliability.

Inactive Publication Date: 2015-10-28
UNISPLENDOUR CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The existing photoelectric infusion alarm method utilizes the light intensity signal change received by the photoelectric receiver to determine whether the infusion is complete, and is susceptible to environmental light intensity changes (day, night), light interference (turning on and off) and liquid color (transparent). Light rate) changes, prone to false positives, false positives, low reliability

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  • Differential type photoelectric transfusion alarm device and alarm method thereof
  • Differential type photoelectric transfusion alarm device and alarm method thereof

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Embodiment Construction

[0025] A kind of differential photoelectric infusion alarm device proposed by the present invention and its alarm method are described as follows in conjunction with the accompanying drawings and embodiments:

[0026] The differential photoelectric infusion alarm device proposed by the present invention includes a light source and a photoelectric receiver arranged at opposite positions on both sides of the infusion hose, a signal processor and a beeper sequentially connected to the output end of the photoelectric receiver. It is characterized in that it also includes a second photoelectric receiver, which is located on the same side of the infusion hose as the first photoelectric receiver and is spaced up and down, and the output ends of the two photoelectric receivers are respectively connected to the single-chip The input terminal is connected, and the output terminal of the single-chip microcomputer is connected with the buzzer input terminal;

[0027] The light source even...

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Abstract

The invention relates to a differential type photoelectric transfusion alarm device and an alarm method thereof, and belongs to the technical field of medical apparatuses. The alarm device comprises light sources, photoelectric receivers, a single-chip microcomputer and a buzzer. The light sources are the photoelectric receivers are respectively arranged on the two sides of a transfusion flexible pipe. The output ends of the two photoelectric receivers are connected to the input end of the single-chip microcomputer. The output end of the single-chip microcomputer is connected to the input end of the buzzer. The differential type photoelectric transfusion alarm device employs a differential measuring manner, differential signals are only related to the refractive index of a medium in the transfusion flexible pipe, and the differential signals are not related to ambient light intensity change, light interference and liquid color change, so that the influence due to the ambient light intensity change, the light interference and the liquid color change is eliminated in principle, the sensitivity and reliability for transfusion alarming are greatly improved, and problems that a conventional photoelectric transfusion alarm device reports the information by mistakes and fails to report the information as the conventional photoelectric transfusion alarm device is susceptible to ambient interference and liquid color change are solved.

Description

technical field [0001] The invention relates to a differential photoelectric infusion alarm device and belongs to the technical field of medical equipment. Background technique [0002] Intravenous infusion is one of the common clinical nursing operations. Hospitals at all levels have a large number of patients receiving infusion every day. Due to the serious imbalance between patients and medical staff in my country, nurses usually hand over the monitoring of infusion progress to patients or their accompanying personnel. When the infusion is nearly completed, the patient or his companion calls the medical staff to pull out the needle or change the dressing in time, otherwise it will cause accidents such as dripping empty infusion, air embolism, blood return and coagulation, and re-injection. Since the infusion time is usually long, monitoring the infusion progress with the eyes for a long time will easily cause tension and fatigue. If the patient and his accompanying staff c...

Claims

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Application Information

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IPC IPC(8): A61M5/168
CPCA61M5/1684A61M5/1685A61M2205/18
Inventor 高宏徐学雷
Owner UNISPLENDOUR CO LTD
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