Photoelectric colorimetry blood loss metering pen and drainage bottle matched with same in use

Abstract

The invention relates to a photoelectric colorimetry blood loss metering pen which comprises a metering pen casing and is characterized in that a light splitting device and a light receiving device are installed at the head end of the metering pen casing, and a light source, a detection device, an input-output device and a storage operation device are installed in the metering pen casing. The light splitting device is used for separating read light from light emitted by the light source, the light receiving device is used for receiving reflected light, the detection device is used for converting light signals received by the light receiving device into electric signals, amplifying the electric signals and transmitting the electric signals to the input-output device and the storage operation device, and the input-output device and the storage operation device are connected. The light source adopts a light-emitting diode (LED) source, the light splitting device adopts a monochromator, the light receiving device adopts a concave grating, the detection device adopts a photoelectric multiplier, and the input-output device is a touch displayer. By means of the metering pen, the bleeding amount of a human body in an operation can be reflected timely and accurately to guide clinical reasonable blood use, and blood source waste can be effectively avoided.

Description

technical field [0001] The invention relates to a photoelectric colorimetric blood loss metering pen and a matching drainage bottle, in particular to a portable detection device that can be used to accurately calculate the amount of blood loss in various operations, thereby guiding the rational use of blood in clinical practice and effectively avoiding the waste of blood sources Equipment belongs to the technical field of medical equipment. Background technique [0002] In recent years, almost all parts of the country have experienced blood shortages to varying degrees, seriously interfering with the normal development of clinical work in various hospitals. While the blood supply is in short supply, as a clinical surgeon, he often pays attention to clinical use in his usual work. Due to the randomness and irrationality of blood, in surgery, especially in brain surgery, it is difficult to estimate the bleeding volume of the hemorrhagic fluid sucked into the storage bottle by ...

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Problems solved by technology

[0002] In recent years, almost all parts of the country have experienced blood shortages to varying degrees, seriously interfering with the normal development of clinical work in various hospitals. While the blood supply is in short supply, as a clinical surgeon, he often pays attention to clinical use in his usual work. Due to the randomness and irrationality of blood, in surgery, especially in brain surgery, it is difficult to estimate the bleeding volume of the hemorrhagic fluid sucked into the storage bottle by intraoperative flushing, and the microscopic counting method should be used to accurately calculate the bleeding volume It is difficult to implement because it is time-consuming and labor-intensive, so the blood used in the operation can only be roughly estimated, which can easily lead to waste of blood sources

In view of this situation, the more mature and common practice in large medical institutions at home and abroad is that anesthesiologists strengthen the detection of patients' vital indicators. Blood gas analysis and blood cell analysis are also good means to indirectly understand the situation of blood loss and fluid loss. However, in the case of a large amount of fluid replacement during the operation, the results of blood cell analysis are difficult to accurately and timely reflect the real situation. Rapid decline, it is often too late to prepare blood for rescue

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