Automatic artery compression haemostat and hemostasis method

Abstract

The invention discloses an automatic artery compression haemostat and a hemostasis method. The haemostat comprises a tourniquet. An airbag is arranged on the tourniquet and is connected with an air pump, a deflation valve and a pressure sensor. A pre-amplification device is connected with the output end of the pressure sensor. An output signal of the pre-amplification device is divided into two channels, one channel is directly sent to a port AD0 of the AD (analog to digital) conversion end of a single microcomputer chip, and the other channel is connected with a port AD1 of the AD conversion end of the single microcomputer chip through a pulse signal processing circuit. The single microcomputer chip controls movements of the air pump and the deflation valve through connection. The artery hemostasis with pressure measuring and timing functions is used for hemostasis, pressure as needed by compression of artery puncture points is set according to individual blood pressure values of patients, and compression time as needed by radial artery puncture points is set according to bleeding and blood coagulation time of the patients and half-life periods of anticoagulants used in operations, so that hemostasis effect of the artery puncture points is improved, comfort level of the patients is also improved, complications caused by ultrahigh or ultralow pressure are avoided, and working efficiency of medical workers is improved.

Description

technical field [0001] The invention relates to medical equipment, in particular to an arterial automatic compression hemostat and a hemostasis method. Background technique [0002] With the progress of society and the change of disease spectrum, the incidence of coronary heart disease is increasing, the number of cancer patients is increasing rapidly, and the active bleeding of digestive tract of unknown cause is also increasing. The diagnosis and treatment of these cases are becoming more and more important. Many applications to vascular interventional therapy technology. In clinical practice, puncture through the radial (femoral) artery is often used for angiography, vascular embolization and other treatments. Postoperative compression of the radial (femoral) artery puncture point to stop bleeding is an important nursing measure. In many clinical hospitals, elastic bandages are used for pressurization, sandbag compression or radial (femoral) artery hemostasis device to s...

AI Technical Summary

Problems solved by technology

In many clinical hospitals, elastic bandages are used for pressurization, sandbag compression or radial (femoral) artery hemostasis device to stop bleeding. The degree of tightness and pressure only depends on the experience of the operator. The sandbags used are the uniform 500g sandbags of the public. , there are great disadvantages, such as too much pressurized pressure, which affects the blood circulation of the limbs, causes swelling, numbness and pain of the patient's limbs, skin damage, and even causes occlusion of the blood vessels of the limbs measured during surgery, resulting in serious complications; If the pressurization pressure is too low, the purpose of hemostasis cannot be achieved, which may cause bleeding at the puncture site, hematoma, pseudoaneurysm, etc.

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