Vascular access site management system
Inventors
Chelak, Todd M. • Damarati, John • Dennis, Nicholas • Illsley, Nicholas
Assignees
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Publication Number
US-11013902-B2
Publication Date
2021-05-25
Expiration Date
Abstract
A vascular access site management system includes a stabilization body and a flow housing that is rotatable relative to the stabilization body. The flow housing may have a flow path extending through it to allow fluids to be introduced into or extracted from a patient via a catheter connected to the vascular access site management system. The vascular access site management system may also include a needle free connector fluidly connected to the flow housing via a section of tubing.
Core Innovation
A vascular access site management system is provided for transfer of fluid to and/or from a patient using a stabilization body and a flow housing. The stabilization body includes a first portion having an inlet and an outlet configured to be slidably coupled to a fluid channel surface of a vascular access device inserted into the patient's vasculature, and an internal fluid path extending between the inlet and outlet. The stabilization body also includes a locking mechanism rotatably coupled so the locking mechanism may rotate about the first portion to independently rotate and secure the stabilization body to the vascular access device.
The stabilization body further includes a base portion with a stabilization surface on an underside of the base portion, configured to stabilize the vascular access site management system when placed upon the patient. The stabilization surface is configured to be placed on the patient after rotation of the locking mechanism to secure the stabilization body to the vascular access device and to remain in place on the patient during rotation of the flow housing portion, thereby restricting rotational and translational movement of the vascular access device.
The flow housing includes a sleeve portion and a pathway portion defining a system fluid path through the vascular access site management system, where the first longitudinal axis of the sleeve portion is not parallel to the second longitudinal axis of the pathway portion. The sleeve portion is rotatably coupled to the stabilization body so the flow housing is rotatable with respect to the stabilization body between a first position and at least a second position, with the inlet of the pathway portion being a first distance from the stabilization surface in the first position and a second shorter distance in the second position.
Claims Coverage
The coverage centers on one independent claim with dependent claims refining the system by adding a valve mechanism and by specifying quantitative relationships for back-pressure actuation and the angular orientation of the stabilization surface. The main inventive features are the stabilization-and-rotation concept that secures the vascular access device while a rotatable flow housing changes position relative to the patient, plus optional flow-control refinements in the internal fluid path.
Rotatable locking stabilization of a secured vascular access device
A stabilization body with a locking mechanism rotatably coupled to the stabilization body such that the locking mechanism may rotate about the first portion to independently rotate and secure the stabilization body to the vascular access device inserted into the patient's vasculature.
Stabilization surface placed after locking and configured to restrict movement during rotation
A base portion having a stabilization surface located on an underside of the base portion and configured to stabilize the vascular access site management system when placed upon the patient, where the stabilization surface is configured to be placed on the patient after rotation of the locking mechanism and is configured to remain in place during rotation of the sleeve portion, thereby restricting rotational and translational movement of the vascular access device.
Rotatable flow housing with non-parallel longitudinal axes to shift the flow path relative to the patient
A flow housing having a sleeve portion and a pathway portion where the first longitudinal axis of the sleeve portion is not parallel to the second longitudinal axis of the pathway portion, with the sleeve portion rotatably coupled to the stabilization body such that the flow housing is rotatable between a first position and at least a second position, changing the distance of the inlet of the pathway portion from the stabilization surface.
Internal fluid path defining a system fluid path through stabilization body and flow housing
An internal fluid path extending through at least a portion of the stabilization body between the inlet and outlet, and a flow path through at least a portion of the pathway portion and the sleeve portion such that the flow path and the internal fluid path define a system fluid path through the vascular access site management system.
Selectively actuated valve mechanism in the internal fluid path
A valve mechanism in the internal fluid path that selectively prevents and allows fluid flow.
Two way pressure activated valve mechanism
A valve mechanism in the internal fluid path configured as a two way pressure activated valve mechanism.
Slit opening valve mechanism actuated by back pressure
A valve mechanism having a slit that opens when back pressure is present in an internal fluid path to permit fluid flow.
Back pressure threshold relative to venous pressure
The back pressure needed to open the slit is greater than the patient's venous pressure.
Angular orientation constraint for the stabilization surface
The stabilization surface is configured such that an angle is between 5 degrees and 10 degrees.
Overall, the independent claim defines a stabilization body with a rotatably operating locking mechanism and a stabilization surface that is placed after locking and remains during rotation, combined with a rotatable flow housing whose flow path repositioning is achieved with non-parallel longitudinal axes and a position-dependent inlet distance relative to the stabilization surface. Dependent claim refinements add a valve mechanism in the internal fluid path, including a two-way pressure-activated, slit-based back-pressure actuation with a relationship to venous pressure, and they specify an angular range for the stabilization surface orientation.
Stated Advantages
Restricting rotational and translational movement of the vascular access device.
Remaining in place on the patient during rotation of the sleeve portion while positioning the flow housing relative to the secured device.
Documented Applications
Not explicitly described in patent.
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