Pressure activated IV set
AssigneeBecton, Dickinson and Company
InventorChad Adams
Life of this patent
Estimating the term…
Abstract
An IV set includes a drip chamber and a pressure activated valve. The drip chamber has an operable liquid height and an outlet orifice. The pressure activated valve is disposed proximate the outlet orifice of the drip chamber and includes a sealing orifice, a valve, and a biasing mechanism. The sealing orifice and the operable liquid height correspond to a head. The biasing mechanism biases the valve against the sealing orifice with a force less than the head of the operable liquid height to control the flow of liquid through the pressure activated valve.
Claims21
An IV set comprising:
- a drip chamber having an outlet orifice;
- and
- a pressure activated valve disposed proximate the outlet orifice of the drip chamber, the pressure activated valve comprising:
- a sealing orifice;
- a valve;
- and
- a biasing mechanism that biases the valve against the sealing orifice with a force less than the pressure head between the sealing orifice and an operable liquid height in the drip chamber to control the flow of liquid through the pressure activated valve.
An IV set comprising:
- a drip chamber having an outlet orifice;
- and
- a pressure activated valve disposed proximate the outlet orifice of the drip chamber, the pressure activated valve comprising:
- a sealing orifice;
- a valve for closing the sealing orifice;
- and
- a means for biasing the valve against the sealing orifice with a force less than the pressure head between the sealing orifice and an operable liquid height in the drip chamber to control the flow of liquid through the pressure activated valve.
A method for priming an IV set, the method comprising:
- connecting the IV set to a source of a liquid, wherein the IV set comprises a drip chamber having an outlet orifice;
- and a pressure activated valve disposed proximate the outlet orifice of the drip chamber, the pressure activated valve comprising a sealing orifice, a valve for closing the sealing orifice, and a biasing mechanism that biases the valve against the sealing orifice with a force less than the pressure head between the sealing orifice and an operable liquid height in the drip chamber to control the flow of liquid through the pressure activated valve;
- drawing the liquid into the drip chamber;
- and
- moving the valve from the sealing orifice to permit the liquid to exit the pressure activated valve when the head of the liquid in the drip chamber exceeds the force of the biasing mechanism.
Dependencies are inferred from the claim text.