Handset for occlusion clearing device
Inventors
Bagwell, Roger B • Becker, Nicholas • Dillon, Douglas R • Van Ess, II, Robert
Assignees
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Publication Number
US-11147944-B2
Publication Date
2021-10-19
Expiration Date
Abstract
A handset for operation and locking of an occlusion clearing device includes a body and movable cover. Valve(s) in fluid communication with tubing for aspiration or irrigation are located within the body. A locking mechanism having first and second components affixed at different points in the handset which are selectively movable relative to one another to transition between locked and unlocked positions. The first component is connected to and selectively movable relative to the cover. The second component engages a portion of the first component, causing the cover to move in an engagement direction as the first component is moved to a locked position. Movement of the cover in an engagement direction causes the valve(s) to change from a first to second position which controls the flow of fluid therethrough. An engagement surface of the second component engages and retains the first component in a locked position.
Core Innovation
The occlusion-clearing medical device system includes a clinician-operated handset with a body and a movable cover. The cover is connected and movable relative to the body between a disengaged position and an engaged position. A locking mechanism includes a first component selectively movable between an unlocked position and a locked position on the cover, and a second component affixed to the body that engages the first component to move the cover between the disengaged and engaged positions and to selectively retain the first component in the locked position.
At least one valve is located within the body and operable between a first position and a second position to control flow of fluid through the body. Movement of the cover between the disengaged position and the engaged position causes the at least one valve to change between the first position and the second position. In related refinements, the handset provides irrigation tubing with a first valve and aspiration tubing with a second valve, such that moving the cover causes the first and second valves to switch between their first and second positions.
An occlusion-clearing device includes an aspiration conduit with an operative distal end opening and a nested irrigation conduit within an aspiration lumen. The clearing stem architecture supports aspiration and irrigation lumens within the clearing stem, and the proximal end of the clearing stem is connectable in fluid communication with a third passage of a tubing junction. In further refinements, a motor and shaft can drive reciprocating motion for the clearing stem, and a coupler structure can include a diaphragm and a ventilator port for a closed system.
Claims Coverage
The document provides one independent claim focused on a handset architecture where cover movement via a two-component locking mechanism directly switches one or more valves between first and second flow positions, with dependent claims refining retention/geometry and extending fluid routing to aspiration and irrigation pathways as well as adding an occlusion-clearing stem connected to a tubing junction.
Cover-actuated valve switching using two-component locking mechanism
A handset including a body; a cover connected and movable relative to the body between a disengaged position and an engaged position; a locking mechanism with a first component mounted to the cover and selectively movable between an unlocked position and a locked position to cause cover movement, and a second component affixed to the body that engages at least a portion of the first component to move the cover between disengaged and engaged positions as the first component moves between unlocked and locked positions and selectively retain the first component in the locked position; and at least one valve located within the body operable between a first position and a second position to control flow through the body, wherein movement of the cover between disengaged and engaged positions causes the at least one valve to change between the first position and the second position.
Across the dependent refinements, the locking and cover movement are tied to internal valve switching, extended to irrigation and aspiration tubing with respective valves, and further connected to an occlusion-clearing device clearing stem having nested irrigation conduit within an aspiration lumen and a proximal connection to a tubing junction passage.
Stated Advantages
Reducing clogging during occlusion clearing.
Minimizing disruption to patient lung mechanics during ETT/tracheal secretion clearing.
Documented Applications
Occlusion clearing of secretions (mucus, clots, blood) in an endotracheal tube (ETT) or trachea.
Use within a closed ventilation-compatible system for aspiration/irrigation during secretion clearing.
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