Convergent-divergent drip chamber integrated with floating valve member
AssigneeCareFusion 303, Inc.
InventorsKanjimpuredathil Muralikrishna Menon, Aman Agarwal, Rahul Puthukkad, Arjun Murali
Life of this patent
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Abstract
A drip chamber device may include a housing including an inlet and an outlet disposed downstream of the inlet, and a chamber defined by an inner circumferential surface of the housing. The chamber may fluidly connect the inlet with the outlet. A valve member may be disposed in the chamber to move between (i) a closed state where fluid communication between the inlet and the chamber is blocked, and (ii) an open state where fluid communication between the inlet and the chamber is not blocked, based on a level of fluid within the chamber.
Claims20
A drip chamber device, comprising:
- a housing having a top end including an inlet, and a bottom end including an outlet disposed downstream of the inlet;
- a chamber defined by an inner circumferential surface of the housing, and fluidly connecting the inlet with the outlet, the inner circumferential surface having a sealing ring, disposed distally to the inlet, a first sidewall extending radially outward and distally from the top end of the housing, and a second sidewall extending radially inward and distally from the first sidewall to the bottom end of the housing;
- and
- a valve member disposed in the chamber to move between (i) a closed state where fluid communication between the inlet and the chamber is blocked by engagement of the valve member against the sealing ring, and (ii) an open state where the valve member is spaced apart from the sealing ring in a direction distal to the inlet, based on a level of fluid within the chamber, such that fluid communication between the inlet and the chamber is not blocked.
A drip chamber device, comprising:
- a housing having a top end including an inlet for receiving a primary fluid, an opposing bottom end including an outlet for dispensing fluid from the housing, an intermediate section between the top end and the bottom end, and a sidewall having (i) a first portion extending radially outward from the top end to the intermediate section of the housing, and (ii) a second portion extending radially inward from the intermediate section to the bottom end of the housing, wherein an inner circumferential surface of the sidewall defines a chamber;
- a sealing ring circumferentially disposed along the first portion of the inner circumferential surface;
- and
- a valve member moveably disposed in the chamber, the valve member being displaceable in a proximal direction into the sealing ring by a buoyant force when fluid level in the chamber exceeds a predetermined level.
A drip chamber device, comprising:
- a housing having a top end including an inlet, and a bottom end including an outlet disposed downstream of the inlet;
- a chamber defined by an inner circumferential surface of the housing, and fluidly connecting the inlet with the outlet, and the inner circumferential surface having a first sidewall extending radially outward and distally from the top end of the housing, and a second sidewall extending radially inward and distally from the first sidewall to the bottom end of the housing;
- and
- a valve member disposed in the chamber to move between a closed state, where fluid communication between the inlet and the chamber is blocked, and an open state, where fluid communication between the inlet and the chamber is not blocked, based on a level of fluid within the chamber.
Dependencies are inferred from the claim text.