An auxiliary device for diaphragmatic pacing and expectoration

An auxiliary device and diaphragm technology, applied in the fields of therapy, medical science, physical therapy, etc., can solve the problems of patients' respiratory tract injury, patients' retching, low efficiency, etc., and achieve increased system control feedback, precise flow control, and clear quantitative indicators Effect

Active Publication Date: 2022-02-11
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

[0009] However, the above method still has the following disadvantages: when using the Heimlich maneuver or the abdominal impact method, it is difficult to achieve the effect of precise and controllable gas flow due to the inconvenience of high paraplegia patients and purely manual techniques; Nausea and other adverse reactions, if used improperly, will lead to respiratory damage and suffering. It is precisely because of the discomfort and safety hazards of the product that the patient's body and mind are affected, which greatly affects the quality of life of the patient; when coughing When the reflex nerves and muscle nerves are damaged, it is impossible to use external stimulation to trigger coughing
In addition, the process of assisting expectoration is low in efficiency, poor in comfort and convenience, and patients feel poor when using it

Method used

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  • An auxiliary device for diaphragmatic pacing and expectoration

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Effect test

Embodiment 1

[0041] This embodiment discloses a diaphragmatic pacing auxiliary device for expectoration, such as figure 1 As shown, it includes: gas source 1, exhaust port 2, pneumatic reversing valve 3, gas flow meter 4, oxygen mask 5, nerve electrical stimulation system 6, probe 7 and acquisition card 9;

[0042] The pneumatic reversing valve 3 includes a first pneumatic reversing valve 31 and a second pneumatic reversing valve 32; the pneumatic reversing valve 3 is equipped with an air flow switching valve; wherein the first pneumatic reversing valve 31 is connected to the air source 1, The second pneumatic reversing valve 32 is connected with the exhaust port 2, the first pneumatic reversing valve 31, the second pneumatic reversing valve 31, and the gas flow meter 4 are communicated through a three-way pipe, and the gas flow meter 4 is connected to the oxygen mask 5 connect.

[0043] The acquisition card 9 is respectively connected with the nerve electrical stimulation system 6 and th...

Embodiment 2

[0049] This embodiment discloses a method for using the above-mentioned diaphragm pacing and expectoration auxiliary device, which includes the following steps:

[0050] S1. Collect electromyographic signals in real time through the acquisition electrodes, including intercostal electromyographic signals and diaphragm electromyographic signals, and perform signal processing and analysis;

[0051] S2. According to the collected myoelectric signal data, the electrical stimulation intensity of the diaphragm nerve and the intercostal muscle nerve, and the safety threshold of the myoelectric response are obtained; the nerve electrical stimulation system 6 issues a trigger instruction for the required electrical stimulation intensity, and stimulates the nerve through the probe. Intensity output to realize the movement process of simulating coughing; specifically include: stimulating the diaphragmatic nerve, causing the diaphragm to contract and sink, and expanding the chest cavity; sw...

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Abstract

The invention discloses an auxiliary device for diaphragmatic muscle pacing and expectoration, comprising: a gas source, an exhaust port, a pneumatic reversing valve, a gas flow meter, an oxygen mask, a nerve electrical stimulation system, a probe and an acquisition card. The meter is connected with the oxygen mask, the acquisition card is respectively connected with the electrical nerve stimulation system and the gas flow meter, and the electrical nerve stimulation system is connected with the probe. The diaphragm pacing and expectoration auxiliary device provided by the present invention adopts the way of external electric stimulation of the diaphragm nerve to cause the diaphragm muscle to produce contraction and relaxation pacing movements, thereby achieving the effect of simulating human cough and stimulating expectoration.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a diaphragm pacing and expectoration auxiliary device. Background technique [0002] The process of coughing belongs to nerve reflex. The nerve reflex caused by the stimulation of the medullary cough center is an explosive exhalation action, and the whole step has the effect of diaphragm and intercostal muscles, specifically the contraction of diaphragm and intercostal muscles. Relaxation, ejecting high-pressure air from the chest and lungs. It is caused by inflammation, foreign body, physical or chemical stimulation of the trachea, bronchial mucosa or pleura. The specific appearance of the whole process is: first, the secretion or foreign body in the airway causes the central system to produce a cough reflex; Take a deep breath; then, the glottis closes, and the expiratory muscles forcefully contract to make the intrathoracic pressure rise rapidly in a short period of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N1/36A61M16/00A61B5/389A61B5/395
CPCA61N1/3601A61N1/36014A61N1/36031A61M16/0003A61B5/389
Inventor 石岩王一轩蔡茂林许未晴任帅王娜
Owner BEIHANG UNIV
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