A device and detection method for on-line detection of blood coagulation on the surface of artificial organs

Abstract

The invention discloses a device for online detection of surface coagulation of an artificial organ. An optical fiber sensor is arranged on the artificial organ, the light emitted by a light-source optical fiber enters a transparent coating, the light is totally reflected inside the anticoagulation coating and received by a receiving optical fiber when no blood exists; when the blood flows by the surfaces of the anticoagulation coating, the blood forms a liquid membrane to cover the surface of the anticoagulation coating, the light is partially refracted, the light received by the receiving optical fiber is weakened, and the coagulation situation is judged according to the intensity and stability of the received signal, so that the blood coagulation can be judged and detected earlier. The optical fiber sensor is fixed below the anticoagulation coating, so that the optical fiber sensor can be effectively protected by the anticoagulation coating, and the high reliability and service life of the optical fiber sensor can be guaranteed. The optical fiber sensors are uniformly distributed on the surface of the artificial organ in an array manner, so that the specific blood coagulation position can be precisely judged, the blood coagulation situation can be well judged, and the information can be accurately fed back to a doctor in time.

Description

technical field [0001] The invention belongs to the technical field of medical detection equipment, and in particular relates to a device and a detection method for on-line detection of blood coagulation on the surface of an artificial organ. Background technique [0002] Artificial organs are artificial devices that temporarily or permanently replace the main functions of certain organs of the body. The more widely used ones are: ①Artificial lung (oxygenator) simulates lung for O 2 with CO 2 An exchange device that oxygenates low-oxygenated venous blood into high-oxygenated arterial blood through an oxygenator. ②Artificial heart (blood pump). A device that replaces the heart's blood pumping function, similar in structure to a pump, can drive blood flow to overcome resistance and flow in one direction. The artificial heart and artificial lung are collectively called the artificial heart-lung machine, which was first used on the human body in 1953 and is mainly suitable f...

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Problems solved by technology

[0007] At present, the contact surface between artificial organs and blood is mainly processed or coated with anticoagulant materials, which not only increases the manufacturing cost and difficulty of the organ, but also cannot fully play the anticoagulant function. Once coagulation occurs, Only when it is more serious can it be reflected through clinical manifestations, often causing great pain and serious consequences to the patient

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