Device for Controlling the Rate of Flow of a Fluid
AssigneeCentrax Limited
InventorRichard Henry Howard Barr
Life of this patent
Estimating the term…
Abstract
A device (1) for controlling the rate of flow of a fluid such as fluid which is diverted from a part of a human or animal body. The device comprises: an inlet (2); an outlet (4); and a resistance member (6), operatively connected to the inlet (2) and the outlet (4), the resistance member (6) comprising: a first plate (8), a surface of which comprises a groove which defines a resistance flow channel, an entry of the flow channel being in fluid communication with the inlet (2) and an exit of the flow channel being in fluid communication with the outlet (4); and a second plate (12), the second plate being held in abutment with the grooved surface of the first plate (8) so as to define a resistance (tube 14).
Claims29
1-28. (canceled)
A device configured for subcutaneous implantation, which device is adapted to divert fluid from a part of a human or animal body in a controlled manner, the device comprising:
- an inlet;
- an outlet;
- and
- a resistance member, operatively connected to the inlet and the outlet, the resistance member comprising:
- a first plate, a surface of which comprises a groove;
- and
- a second plate, the second plate being held in abutment with the grooved surface of the first plate so as to define a resistance flow channel, an entry of the resistance flow channel being in fluid communication with the inlet, the resistance flow channel comprising at least two exits along its length, each of which may be placed in fluid communication with the outlet by a selection means so as to vary the effective length of the resistance flow channel, and each of which comprises an orifice in one of the first and second plates, which orifices are covered or uncovered by the selection means, the selection means comprising a rotor mounted adjacent the resistance member and having a through passage, the rotor being mounted in the device for rotation relative to the resistance member and being magnetically excitable, such that it may be rotated via a magnet held proximate the device, and such that any of the said exits of the flow channel may be brought into fluid communication with the outlet via the through passage.
A device as claimed in claim 59, wherein the further resistance flow channel is in fluid communication with the first resistance flow channel.
Dependencies are inferred from the claim text.