Decompression needle assembly
Inventors
Cupelli, Matt • Bronson, Brent • Bolleter, Scott
Assignees
Publication Number
US-10926063-B2
Publication Date
2021-02-23
Expiration Date
2036-02-17
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Abstract
The present invention is a decompression needle assembly having a needle that is removable received into to a catheter. The catheter can include a rigid portion and a deformable portion wherein the deformable portion can be multi-ported at its distal end. A one-way valve contained in a catheter hub attached to the catheter wherein the one way valve is in an open position when the needle is received in the catheter. Lateral catheter openings can be defined in the catheter and disposed adjacent to a distal end of the catheter. A plunger can be received within the needle and have an visual and auditory indicator that can be appreciated through the needle hub.
Core Innovation
The invention is directed to a decompression needle assembly intended for the treatment of tension pneumothorax and pneumothorax, especially in dynamic or austere settings. The assembly features a needle that is removably received into a catheter, which itself includes a catheter hub, a rigid portion, and a deformable portion at its distal end. Notably, the deformable portion can be multi-ported, and the catheter features lateral openings adjacent to its distal end to enhance fluid flow even if the main opening is obstructed.
The assembly incorporates a one-way valve located in the catheter hub. This valve is maintained in an open position when the needle is present and automatically closes once the needle is removed, preventing backflow of air or fluid into the pleural space and blocking reinsertion of the needle. A temporary locking mechanism exists between the needle hub and the catheter hub, accomplished via a rotatable lock collar and lock tab, allowing secure attachment and detachment without blocking fluid flow.
The system also includes user-interface improvements, such as a plunger with a visual and auditory indicator to assist providers in recognizing correct placement, and features for better handling and storage, like annular rings, ridges, and a compact housing. The structure is designed to address complications of traditional devices, including blockage, kinking, lung damage, and usability challenges faced under high-stress conditions.
Claims Coverage
The patent includes one independent claim, which incorporates several inventive features.
Decompression needle assembly with one-way valve and locking mechanism
The decompression needle assembly comprises: - A housing with a removable housing cap for receiving a needle hub. - A catheter with a catheter hub at its proximal end and a lock tab attached to a rear portion of the catheter hub. - A rear catheter opening defined in the catheter hub. - A needle with a distal end and proximal end attached to a needle hub. - A one-way valve in the catheter hub, which: - Is in a first open position when the needle is received. - Closes and prevents reinsertion of the needle when the needle is removed. - A lock collar rotatably attached to the needle hub for engaging with the lock tab and securing the needle hub to the catheter hub. - A needle hub extension to be received in the rear catheter opening when the needle hub is attached. - A storage position where the needle and catheter are attached and received in the housing with the lock collar extending from the housing when the cap is removed. - The one-way valve permits fluid flow proximally and linearly upon needle removal and prevents distal fluid flow in the closed position.
The independent claim covers a decompression needle assembly with an integrated one-way valve system, a temporary locking mechanism for secure needle and catheter hub attachment, and a specialized structural arrangement for controlled fluid flow and safe storage.
Stated Advantages
Mitigates blockage of the catheter and reduces or eliminates catheter kinking.
Provides a temporary locking mechanism between catheter and needle to allow proper insertion without blocking fluid flow.
Prevents the catheter from damaging the lung when the lung re-inflates.
Prevents reverse fluid flow into the pleural space when the catheter is in position.
Improves usability for providers experiencing stress reactions, such as tachypsychia, by simplifying handling and packaging.
Allows compact, lightweight storage for easy transport by first responders and operators.
Documented Applications
Treatment of tension pneumothorax and pneumothorax, particularly by first responders and providers of emergency and critical care medicine.
Use in combat, dynamic, or austere settings where medical personnel experience high stress and require rapid, reliable emergency medical interventions.
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