Radiation dose detection device and method for blood irradiator

A technology of radiation dose and detection device, applied in the field of radiation dose detection device, can solve the problems of film method dose range limitation, high cost, complicated operation in detection process, etc.

Pending Publication Date: 2020-09-15
ZHUHAI LIVZON DIAGNOSTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of the entire test is high, and the detection process is cumbersome to operate. At the same time, the film method has a dose range limit, and the data beyond the range will not be used.
[0007] The working principle of the ionization chamber method is to use x-rays / γ-rays to form ionization currents under the action of electric fields. The blood cup is constantly rotating during use, causing the measurement probe to rotate with the blood cup during the detection process and there is a problem of wire entanglement. In order to avoid wire entanglement, the measurement probe is basically fixed on the blood cup during the normal test process. At the center, it can only be used for the detection of the central dose rate

Method used

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  • Radiation dose detection device and method for blood irradiator
  • Radiation dose detection device and method for blood irradiator
  • Radiation dose detection device and method for blood irradiator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] see image 3 The blood irradiation instrument 1 includes a ray generator 10, a blood cup tray 11, a blood cup tray rotation drive mechanism 12 for driving the blood cup tray 11 to rotate, a shielding shell 13, and a detection blood cup placed on the blood cup tray 11 14; Wherein, the blood cup tray 11 is rotatably installed in the irradiation chamber 15 surrounded by the shielding case 13 . A ray passing hole 16 is provided on the shielding shell 13. During the process of irradiating blood products and detecting the radiation dose, the ray generator 10 will emit high-energy rays to the irradiation chamber 15 through the ray passing hole 16. In this embodiment, it is specifically X-rays, that is, the ray generator 10 includes an X-ray tube.

[0055] Such as Figure 3 to Figure 12 Shown is the structure of the radiation dose detection device 17 of the present invention, which is used to detect the radiation dose in the area surrounded by the blood cup 14, including the ...

Embodiment 2

[0074] As a description of Embodiment 2 of the present invention, only the differences from Embodiment 1 above will be described below.

[0075] Such as Figure 13 As shown, the first link mechanism 3 is a double crank mechanism, and the hinged position of the connecting member 6, the transverse connecting rod 5 and the connecting rod 61 is set to be adjustable along the axial direction of the rod, so that the blood cup can also be detected at any time. 14 In the process of turning, realize the problem of anti-winding. That is, in this embodiment, the two rigid members on the second link mechanism are connected by a rotation pair, and the other end thereof is connected to the fixed bracket 30 by a rotation pair.

Embodiment 3

[0077] As an explanation of Embodiment 3 of the present invention, only the differences from Embodiment 1 above will be described below.

[0078] Such as Figure 14 As shown, the link rod in the above embodiment is replaced by a slider 61, and a guide rail 301 matching the slider 61 is provided on the fixed bracket, so that the first link mechanism 3 is a slider crank mechanism . That is, in this embodiment, the two rigid members on the second link mechanism are connected by a rotating pair, and the other end of the second link mechanism is connected to the fixed bracket through a moving pair.

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Abstract

The invention relates to a radiation dose detection device and method for a blood irradiator, and belongs to the technical field of medical instrument detection. The radiation dose detection device comprises a movable probe and a probe mounting bracket; the probe mounting bracket comprises a first connecting rod mechanism and a probe mounting support; and the first connecting rod mechanism comprises a fixing support, a transverse connecting frame rod forming a driving crank, and a second connecting rod mechanism used for preventing a probe wire from generating destructive winding. One end of the second connecting rod mechanism is hinged to the transverse side link through a first hinge shaft, and the other end of the second connecting rod mechanism is connected with the fixing support through a lower pair. The first hinge shaft is provided with a through hole for the probe wire to pass through. The distance between the first hinge shaft and the rotating central axis is adjustable; andthe probe mounting support is mounted on a connecting component of the second connecting mechanism. The device can simplify the radiation dose detection method and reduce the cost, and can be widely applied to the manufacturing and maintenance process of the blood irradiator.

Description

technical field [0001] The invention relates to the technical field of medical device detection, in particular to a radiation dose detection method for a blood irradiation instrument and a radiation dose detection device suitable for the detection method. Background technique [0002] In clinical treatment, blood transfusion is a very necessary and important means, but at the same time, it may cause blood transfusion-related complications. Among them, graft-versus-host disease is a serious adverse reaction of blood transfusion, and there is currently no specific treatment method. An effective way to prevent this serious adverse reaction is to irradiate the blood. [0003] As a medical device for irradiating blood, the blood irradiation instrument works by using high-energy γ-rays or x-rays to inactivate immune-active T lymphocytes in the blood, but it does not affect the functions of red blood cells, platelets and The coagulation factor has little effect on the activity, an...

Claims

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Application Information

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IPC IPC(8): G01T1/02G01T7/00
CPCG01T1/02G01T7/00
Inventor 王乐乐柳邦源林艳方桂峰
Owner ZHUHAI LIVZON DIAGNOSTICS
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