5 results about "Blood flow" patented technology

The invention discloses an emergency hemostasis device for the hematology department. The emergency hemostasis device comprises a base, a motor driving device, a cotton swab disinfecting and cleaningdevice, an emergency hemostasis hand device, a blood pressure display device, a disinfecting and cleaning solution storage device, an adhesive tape fixing device, an automatic ice compress nozzle mechanism and an imaging device, wherein the base is a mounting platform for all the devices, and the emergency hemostasis hand device is used for fixing hands, feet and other parts and blocking blood flow, so that blood vessels are exposed; when being adjusted to a proper position, the cotton swab disinfecting and cleaning device disinfects a wound, the automatic ice compress nozzle mechanism is aligned to the wound to work to achieve the effect of emergency hemostasis, the emergency hemostasis hand device grasps hands and feet to be adjusted to proper positions and then automatically binds the wound with an adhesive tape, the adhesive tape fixing device is operated, and a needle head can be stuck to the hand through the adhesive tape so as to fix the wound; and the imaging device can identify accurate positions of arms and feet of a human body.

The invention discloses a blood pressure measurement method and system. The method comprises the following steps that a blood pressure measurement expression with correction factors is set according to the relationship between shear stress and the blood flow velocity V; characteristic parameters of the blood flow velocity V of a measured object are obtained, meanwhile the blood pressure reference value of the measured object is directly collected through a pressure gauge, and inverse calculation is conducted on the blood pressure measurement expression to obtain a correction factor value; when the practical blood pressure measurement is conducted, the correction factor value of the corresponding measured object is read from a database, and the blood pressure measuring result is calculated on the basis of the blood pressure measurement expression and the characteristic parameters, collected in real time, of the blood flow velocity. The blood pressure measurement method and system are simple, safe, convenient in test, and can achieve remote real-time monitoring of the blood pressure of the user, are good in real-time detection performance, can cope with various accidents of sudden illness of a blood-pressure-disease patient timely, eliminate the damage to the human body by a traditional direct measurement method, store the correction factors and characteristic constant values of the different measured objects for blood pressure calculation, and are high in measurement accuracy.

The present invention relates to methods, devices and systems for performing the removal of thrombus from a vessel lumen. More particularly the present invention relates to a thrombectomy system that includes an elongate catheter and a disposable aspiration pump and methods of performing medical procedures to remove clots, thrombus and emboli to re-establish the normal intravascular flow of blood.