Needle dislodgement and blood leakage detection device

Abstract

A needle dislodgement and blood leakage detection device includes a sensor assembly including a flexible sensor and an alarm device to which the sensor assembly is mounted. The flexible sensor includes two blood leakage detection electrodes that circumferentially surround a needle piercing site. The blood leakage detection electrodes are contactable by a needle in a manner of crossing therebetween to get shorted or are contactable with blood leaking out of the needle piercing site to get shorted. The alarm device is positionable on a body surface of a patient and is electrically connected to the blood leakage detection electrodes so as to issue an alarm message when the detection electrodes are shorted. The flexible sensor has a thin plate configuration that is flexible allows the flexible sensor to be flat attached to the patient body surface and deformable with the bending of a limb of the patient.

Description

technical field [0001] The invention relates to a blood leakage detection device, in particular to a needle removal and blood leakage detection device for detecting whether blood leakage or needle removal occurs at a needle pricking site. Background technique [0002] When the patient undergoes dialysis, the blood needs to be drained to the dialysis machine for filtration and then drained back into the body, so a needle must be punctured into the blood vessel to drain the blood, and the needle must be removed after the dialysis is completed. However, because the diameter of the needle is relatively large, the opening of the blood vessel is relatively large. Therefore, needle leakage or blood leakage often occurs after the needle is punctured or removed. The phenomenon of massive bleeding in patients may affect the life of patients. In view of this, some manufacturers have developed products that can detect blood leakage, such as the blood leakage detection device disclosed ...

AI Technical Summary

Problems solved by technology

[0003] The aforementioned blood leakage detection device judges whether there is blood leakage by analyzing whether the tip of the fiber optic probe is stained with blood. To accurately detect whether there is blood leakage at the needle pricking site, the tip of the fiber optic probe must be aligned with the needle pricking site. This single-point detection method is easy to cause the tip of the fiber optic probe to deviate due to the signal line of the light probe being pulled, resulting in misleading results. Sentenced while delaying blood leak alert

In addition, the fiber optic probe must be set on the same parallel line as the needle, and it will be pressed against the section where the needle penetrates into the tube, which will easily cause pressure on the tube and the needle

Furthermore, the blood leakage detection device can only be used to detect whether there is blood leakage, and cannot detect the situation of the needle slipping off, nor can it send an alarm in real time when the needle itself falls off.

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