Device for measuring the rate of flow of a fluid, in particular in medical equipment, such as anaesthetic equipment

摘要

The device for measuring the rate of flow of a fluid, in particular in the field of medical equipment, such as anaesthetic equipment, comprises a tubular body 2, that can be inserted in line with the delivery tube 3 of the fluid whose flow is to be measured, has its own axial bore 4 of constant diameter f at least in the entire section intended for measuring the fluid flow and comprises, in a central zone, a body 8 that causes a drop in pressure consisting of a number of small tubes 11 each provided with an axial capillary hole 9; the body 8 partially defining, with its opposite ends, two connection chambers 5, 6, forming part of the axial bore 4 in the tubular body 2, which are in communication with a differential pressure sensor 7 that generates a signal proportional to the rate of flow of the fluid that moves with laminar flow along the capillary tubes 9. (Fig. 1) IMAGE