SELF-POWERED INFUSION DEVICE AND METHOD OF USE
A medical device system is provided here which has a disposable pump member capable of delivering fluid at a high pressure and a controlled rate. The disposable pump member has an internal power source that provides an energy source for a drivable pump used during treatment. Additionally, a method is provided herein for infusing, injecting, or delivering an intended fluid into a body vessel at a high pressure and a controlled rate.
1 . A self-powered infusion pump comprising:
a pump housing;
an inlet channel in fluid communication with an inlet valve for allowing fluid to flow between a fluid source and a pump chamber;
the pump chamber comprising a dome reservoir and convex dome diaphragm being resiliently biased towards a selected first expanded shape and first volume that is movable towards a second depressed shape and second volume;
an outlet valve for selectively allowing fluid to flow between the dome reservoir and an outlet port; and
an outlet channel in fluid communication with the outlet valve for allowing fluid to flow between the pump chamber and the outlet port.
2 . The self-powered infusion pump of claim 1 , further comprising a power source.
3 . The self-powered infusion pump of claim 2 , wherein the pump housing is inserted into a drive mechanism.
4 . The self-powered infusion pump of claim 3 , wherein the drive mechanism contains a motor and a deployment mechanism.
5 . The self-powered infusion pump of claim 4 , wherein the deployment mechanism is electrically connected to the power source and the motor.
6 . The self-powered infusion pump of claim 5 , wherein the inlet valve is a one-way valve having a pressure rating up to 10 pounds per square inch.
7 . The self-powered infusion pump of claim 6 , wherein the outlet valve is a one-way valve having a pressure rating up to 800 pounds per square inch.
8 . The self-powered infusion pump of claim 7 , wherein the fluid is a sclerosing agent.
9 . A method of infusing fluid into a hollow anatomical structure at a controlled high pressure using a self-powered infusion pump comprising:
inserting a pump housing into a delivery device containing a motor and a plunger connected to the motor, the pump housing comprising:
an inlet channel in fluid communication with an inlet valve for allowing fluid to flow between a fluid source and a pump chamber;
the pump chamber comprising a dome reservoir and convex dome diaphragm being resiliently biased towards a selected first expanded shape and first volume that is movable towards a second depressed shape and second volume;
an outlet valve for selectively allowing fluid to flow between the dome reservoir and an outlet port; and
an outlet channel in fluid communication with the outlet valve for allowing fluid to flow between the pump chamber and the outlet port;
attaching the inlet channel into a fluid source;
attaching the proximate most end of a delivery means to the outlet port;
powering the motor of the delivery device with a power source;
compressing the dome reservoir towards the second depressed shape and second volume with the plunger;
expanding the dome reservoir back to the first expanded shape and first volume causing an increase in internal pressure and fluid to travel though the inlet valve and fill the dome reservoir.
10 . A method of infusing fluid into a hollow anatomical structure at a controlled high pressure using a self-powered infusion pump of claim 9 , further comprising:
delivering the fluid through the outlet valve at pressures up to 800 pounds per square inch.
11 . A method of infusing fluid into a hollow anatomical structure at a controlled high pressure using a self-powered infusion pump of claim 9 , further comprising:
delivering a sclerosing agent as the fluid source.
12 . A method of infusing fluid into a hollow anatomical structure at a controlled high pressure using a self-powered infusion pump of claim 9 , further comprising:
disposing of the power source upon completion of use.
13 . A method of infusing fluid into a hollow anatomical structure at a controlled high pressure using a self-powered infusion pump of claim 9 , further comprising:
recharging the power source upon completion of use.