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Optical blood detection system

A detector system, blood technology, applied in the field of optical blood detection system, can solve problems such as blood loss in needle blood pipeline

Pending Publication Date: 2019-04-26
FRESENIUS MEDICAL CARE HLDG INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because blood is often removed from the patient and through the blood fluid line circuit at a rapid rate, a disengaged needle or rupture of the blood line will result in rapid and potentially fatal blood loss

Method used

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Embodiment Construction

[0036] Many devices have been proposed to detect wetness caused by urine or blood, or to detect disconnection of a needle from a patient or a break / leak in a fluid line; however, these devices have several disadvantages. For example, many moisture detectors are not particularly efficient and therefore mostly ineffective. Consequently, they require too much moisture and / or liquid to trigger the alarm, or there is too long a delay between the occurrence of moisture and the detection and / or alarm of moisture. An example of conventional wetness detection is disclosed in US Patent 7,605,710, which is hereby incorporated by reference. In the case of hemodialysis, these defects can be fatal; rapid detection and notification are necessary to minimize blood loss due to broken needles or leaks in fluid lines. Additionally, many proposed or existing devices are uncomfortable, bulky, and, in cases where electrical circuits are used to detect moisture, potentially unsafe if the patient is...

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Abstract

An optical blood detector system is described that rapidly detects the presence of blood due to a blood leak in a system. The blood detector system contains a reusable blood sensor that is able to accurately detect the presence of blood in, for example, an extracorporeal blood treatment system by optically sensing light from a sensing region and determining if the light came from a leaked blood. The blood sensor may be responsive to reflected light or light emitted from blood due to bio-fluorescence excited by a light source in the blood detector system. The blood detector system can be placedagainst absorbent material adjacent to an intravenous needle injection site and quickly detect any blood wicked into the absorbent material. The blood detector system can eliminate the need for medical personnel to continuously inspect numerous patients visually for potentially fatal blood leaks due to needle dislodgement.

Description

Background technique [0001] Devices for detecting the presence of wetness and / or fluid leaks have many applications including, for example, in mechanical systems, laboratories, experimental protocols, or devices with fluid lines and for those with enuresis or urinary incontinence, or who receive Those who are treated with blood. In particular, it is important to detect wetness due to blood leaks or other fluid line leaks during procedures involving the removal of blood from the human body, such as blood donation, blood detoxification, hemofiltration / hemofiltration, and hemodialysis. For example, in hemodialysis, blood is moved from the patient through a needle into a blood fluid line circuit that carries the blood to a hemodialysis machine that filters out waste toxins and removes excess water from the blood. Since blood is often removed from the patient and through the blood fluid line circuit at a rapid rate, a disengaged needle or rupture of the blood line will result in r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/36A61B5/1455
CPCA61M2205/15A61M2205/3306A61M2205/3569A61M2205/3592A61M1/3656A61M2205/18A61M2205/3313A61B5/1455A61M5/16836A61M5/5086A61M2205/581A61M2205/582A61M2205/583A61M2209/088
Inventor P·S·詹姆斯L·巴雷特
Owner FRESENIUS MEDICAL CARE HLDG INC
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