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First-aid instrument for crush injury

A crush injury and first aid instrument technology, applied in blood flow measurement, blood characterization device, tourniquet, etc., to reduce ischemia-reperfusion injury, avoid fatal injury, and prevent occurrence and development

Active Publication Date: 2015-01-07
GENERAL HOSPITAL OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, so far there are no medical measures and supporting equipment that can protect the compressed limbs of patients and prevent crush syndrome at the rescue site at home and abroad so far. Therefore, a set of portable equipment is urgently needed to effectively protect patients at the initial stage of relief of compression. The compressed limbs of the injured, and at the same time curb the circulation chain of systemic malignant reactions as soon as possible, buy precious time for subsequent limb salvage and systemic treatment, and prevent the occurrence and development of crush syndrome as much as possible

Method used

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  • First-aid instrument for crush injury

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The structure of the squeeze injury first aid instrument of the present embodiment is as follows: figure 1 As shown, it mainly includes: a microcontroller 100, a tourniquet 200, a pressurizing device 300, a decompressing device 400, and a blood oxygen saturation monitor 500 for detecting blood flow.

[0040]The microcontroller 100 is connected to the pressurization device 300 , the decompression device 400 and the blood oxygen saturation monitor 500 . The tourniquet 200 is connected to the pressurizing device 300 and the decompressing device 400 . The tourniquet 200 is tied to the proximal end of the compressed limb, and the pressurizing device 300 and the decompression device 400 are respectively inflated and deflated under the control of the microcontroller 100 to prevent blood from flowing into the squeezed wound when inflated , When deflated, blood flows into the squeezed wound. The pressurizing device 300 is usually an air pump, and the depressurizing device is u...

Embodiment 2

[0051] The squeeze injury first aid instrument in the above-mentioned embodiment 1 requires that the extremities of the injured person are not injured. If the extremities are seriously injured (such as: severely damaged), the blood oxygen saturation cannot be monitored by the blood oxygen saturation monitor, thereby The blood flow information of the limb cannot be judged. Therefore, this embodiment uses a pressure sensor to detect blood flow information. The structure of the squeeze injury first aid instrument of the present embodiment is as follows: image 3 As shown, it mainly includes: a microcontroller 100, a tourniquet 200, a pressurizing device 300, a decompressing device 400, and a pressure sensor 500' for detecting blood flow.

[0052] The microcontroller 100 is connected to the pressurizing device 300, the decompressing device 400 and the pressure sensor 500'. The tourniquet 200 is connected to the pressurizing device 300, the decompressing device 400 and the pressu...

Embodiment 3

[0063] The structure of the squeeze injury first aid instrument of the present embodiment is as follows: Figure 4As shown, it includes: a microcontroller 100, a tourniquet 200, a pressurizing device 300, a decompressing device 400, a blood oxygen saturation monitor 500 and a pressure sensor 500'. Compared with Embodiments 1 and 2, it also includes: a blood oxygen saturation monitor 500 and a pressure sensor 500'. During first aid, if the injured person's extremities are not damaged, the blood oxygen saturation monitor 500 can be used to detect blood Streaming information, selection is selectable on the control panel of the microcontroller 100 through an input device.

[0064] The first aid device for crush injuries in this embodiment can realize the functions of Embodiment 1 and Embodiment 2 respectively, therefore, the process of realizing "ischemic post-treatment" will not be repeated here.

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Abstract

The invention relates to the technical field of medical instruments and discloses a first-aid instrument for crush injury. The first-aid instrument comprises a microcontroller, a hemostasis air belt, a blood flow detecting device, a pressure device and a decompressing device. The blood flow detecting device is connected with the microcontroller and used for detecting blood flowing information in crush-injured limbs, transmitting blood blocking signals to the microcontroller when blood is blocked and transmitting blood flowing signals to the microcontroller when the blood flows. The pressure device is connected with the hemostasis air belt and the microcontroller and used for inflating the hemostasis air belt under the control the microcontroller to block blood flowing. The decompressing device is connected with the hemostasis air belt and the microcontroller and used for deflating the hemostasis air belt under the control of the microcontroller to recover blood flowing. The microcontroller is used for controlling the pressure device to inflate the hemostasis air belt and controlling the decompressing device to deflate the hemostasis air belt in circulation mode. By using a medical means of ischemic postconditioning, ischemia reperfusion damage on the crush-injured limbs after stress is removed is relieved, and a purpose of protecting the injured limbs is achieved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a first-aid instrument for crush injuries. Background technique [0002] Crush injury is a trauma caused by continuous compression of the body by a huge external force, and severe local and systemic injuries often occur after the patient is rescued and the external compression is relieved. First, when the blood supply of the compressed limb is restored, this uncontrolled blood reperfusion can lead to rapid swelling and necrosis of the compressed limb, resulting in severe ischemia-reperfusion injury; The released cell contents (such as potassium, myoglobin, etc.) will quickly enter the circulatory system to attack important organs such as the heart and kidneys, leading to the death of the patient, which is the so-called crush syndrome. Vicious events such as earthquakes, car accidents, or building collapses will instantly cause a large number of crush injuries / squeeze s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/135A61B5/026A61B5/145
Inventor 王威
Owner GENERAL HOSPITAL OF PLA
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