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US 12,521,515 B2Granted
Adjustable peep valves for ventilators
AssigneeVORTRAN Medical Technology 1, Inc.
InventorAbdolreza Saied
Life of this patent
Estimating the term…
Abstract
PEEP-valves configured to be placed inline with the exhalation path of a ventilator and ahead of the exhalation valve. The PEEP-valve functions as a resistor that can provide a higher PEEP value for any given PIP, lung compliance, and respiratory rate combination compared to a standard PIP to PEEP ratio.
Claims25
An adjustable Positive End-Expiratory Pressure (PEEP) valve apparatus, comprising:
- (a) a valve body, said valve body having an inlet port and an outlet port, the valve body comprising an inlet housing and an outlet housing;
- (b) a fixed disk retained in the outlet housing;
- (c) said fixed disk having a central orifice and a radial orifice;
- (d) a rotatable disk retained in the valve body;
- (e) the rotatable disk having a central orifice and a control port;
- (f) wherein the central orifice in the fixed disk is aligned and in fluidic communication with the central orifice in the rotatable disk;
- (g) wherein the central orifice in the fixed disk and the central orifice in the rotatable disk each have a diameter sufficient to restrict fluid flow between the inlet port and the outlet port;
- (h) wherein the rotatable disk is rotatable between a first position wherein the radial orifice is blocked by the rotatable disk and a second position wherein the radial orifice and the control port are in fluidic communication;
- (i) wherein fluidic communication between the radial orifice and the control port increases fluid flow between the inlet port and the outlet port;
- and
- (j) wherein a maximum resistance to fluid flow is established when the rotatable disk is in the first position.
8 more elements
An adjustable Positive End-Expiratory Pressure (PEEP) valve apparatus, comprising:
- (a) a valve body, said valve body having an inlet port and an outlet port, the valve body comprising an inlet housing and an outlet housing;
- (b) a fixed disk retained in the outlet housing;
- (c) said fixed disk having a central orifice and a radial orifice;
- (d) a rotatable disk retained in the valve body;
- (e) the rotatable disk having a central orifice and a control port;
- (f) wherein the central orifice in the fixed disk is aligned and in fluidic communication with the central orifice in the rotatable disk;
- (g) wherein the central orifice in the fixed disk and the central orifice in the rotatable disk each have a diameter sufficient to restrict fluid flow between the inlet port and the outlet port;
- (h) wherein the rotatable disk is rotatable between a first position wherein the radial orifice is blocked by the rotatable disk and a second position wherein the radial orifice and the control port are in fluidic communication;
- (i) wherein fluidic communication between the radial orifice and the control port increases fluid flow between the inlet port and the outlet port;
- (j) wherein a maximum resistance to fluid flow is established when the rotatable disk is in the first position;
- (k) wherein the inlet port and the outlet port are configured for connection to ventilator inline with an exhaust path and upstream of an exhaust valve in the ventilator;
- (l) wherein maximum resistance to fluid flow establishes a maximum PEEP level provided to a patient by the ventilator;
- and
- (m) wherein rotation of the rotatable disk from the first position to the second position decreases PEEP level.
11 more elements
An adjustable Positive End-Expiratory Pressure (PEEP) valve apparatus, comprising:
- (a) a valve body, said valve body having an inlet port and an outlet port, the valve body comprising an inlet housing and an outlet housing;
- (b) a fixed disk retained in the outlet housing;
- (c) said fixed disk having a central orifice and a radial orifice;
- (d) a rotatable disk retained in the valve body;
- (e) the rotatable disk having a central orifice and a control port;
- (f) wherein the central orifice in the fixed disk is aligned and in fluidic communication with the central orifice in the rotatable disk;
- (g) wherein the central orifice in the fixed disk and the central orifice in the rotatable disk each have a diameter sufficient to restrict fluid flow between the inlet port and the outlet port;
- (h) wherein the rotatable disk is rotatable between a first position wherein the radial orifice is blocked by the rotatable disk and a second position wherein the radial orifice and the control port are in fluidic communication;
- (i) wherein fluidic communication between the radial orifice and the control port increases fluid flow between the inlet port and the outlet port;
- (j) wherein a maximum resistance to fluid flow is established when the rotatable disk is in the first position;
- (k) an adjustment knob that is rotatable about the valve body;
- (l) wherein the adjustment knob and the rotatable disk are coupled whereby rotation of the adjustment knob rotates the rotatable disk;
- (m) a flexible key positioned interiorly to the adjustment knob;
- and
- (n) a plurality of spaced-apart lock stops positioned on the valve body;
- (o) wherein rotation of the adjustment knob is impeded when the flexible key engages a lock stop.
13 more elements
Dependencies are inferred from the claim text.