Device for measuring blood flow rate
The utility model discloses a device for measuring blood flow rate, which is composed of a catheter which is provided with thermistor and can be arranged in a lumen of blood vessel. Two positions (the distance between the two position is known) on the surface of the catheter are provided with thermi...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The utility model discloses a device for measuring blood flow rate, which is composed of a catheter which is provided with thermistor and can be arranged in a lumen of blood vessel. Two positions (the distance between the two position is known) on the surface of the catheter are provided with thermistors capable of exploring the blood temperature variation; when glucose injection of 0-5DEG. C is injected from an end hole or a side hole of the catheter, and the blood with temperature drop passes through the two positions provided with the thermistors along blood flow successively, the required time that the blood flow passes through the two positions provided with the thermistors divides by the known distance between the two points, and then the average blood flow rate of the artery blood vessel or the vein blood vessel can be calculated. |
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