FLUID DELIVERY OR REMOVAL SYSTEM
First Claim
1. A fluid delivery or removal system, comprising:
- a receptacle configured to contain a volume of fluid, the receptacle having a first end having an opening of a first diameter and a second end having an opening of a second diameter that is smaller than the first diameter;
a seal member positioned near the first end and engaged with an interior surface of the receptacle along its perimeter;
a base member including a piston and a powered actuator for imparting motive forces to the piston, the piston having a tip engageable with the seal member; and
a pressure sensor incorporated within, or positioned on, a surface of the tip and configured to measure a load exerted thereon by the fluid.
5 Assignments
0 Petitions
Accused Products
Abstract
Fluid delivery or removal systems and methods for use during a medical procedure are disclosed. A system can include a base member, a receptacle configured to be received by a chamber of the base member, and a pressure sensor. The base member can include a piston having the pressure sensor positioned at or near its tip, a powered actuator for imparting motive forces to the piston, and a rechargeable power supply to energize the actuator. The receptacle is configured to contain a volume of fluid partially retained by a seal member. A surface of the seal member opposite the fluid can include a cavity to receive and engage the piston'"'"'s tip when the receptacle is placed in the chamber. Based on a user-defined parameter input (e.g., a desired pressure set point) received by the system, the piston can be driven in an axial direction by the powered actuator, thereby urging an amount of fluid through a distal opening in the receptacle.
-
Citations
25 Claims
-
1. A fluid delivery or removal system, comprising:
-
a receptacle configured to contain a volume of fluid, the receptacle having a first end having an opening of a first diameter and a second end having an opening of a second diameter that is smaller than the first diameter; a seal member positioned near the first end and engaged with an interior surface of the receptacle along its perimeter; a base member including a piston and a powered actuator for imparting motive forces to the piston, the piston having a tip engageable with the seal member; and a pressure sensor incorporated within, or positioned on, a surface of the tip and configured to measure a load exerted thereon by the fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A method, comprising:
-
inserting a receptacle configured to contain a volume of fluid retained in part by a seal member into a chamber of a base member; engaging a tip of a piston with the seal member, including positioning a pressure sensor between a portion of the piston and a portion of the seal member; establishing a fluid-tight pathway between a dispensing opening of the receptacle and a distal end of a catheter; inputting a desired pressure set point using one or more input receiving members accessible from outside of the base member, including causing the piston to advance or retract in an axial direction to move the seal member within the receptacle and deliver fluid to, or remove fluid from, the catheter through the pathway; and sensing a pressure applied to fluid within the pathway. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
-
Specification