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US 11,684,757 B2Granted
Valved catheter assemblies and related methods
AssigneeB. Braun Melsungen AG
InventorsHang Khiang Chng, Wen Jenn Lim, Khai Tick Sim, Yueh Shiuan Ghoo, Hui Kuun Teoh, Meng Mun Chong, Zi Lai Lim, Boon Ping Neoh, Jarryd Keng Gene Ng
Life of this patent
Estimating the term…
Abstract
Valves are described for intravenous (IV) catheter assemblies for controlling fluidic flow. The valve can prevent blood leakage in multiple access use situations. A thinner area of the valve around a slit is provided. The thicker area of the valve is to provide rigidity to the valve so that it is able to return to a closed configuration when a Luer connector is removed.
Claims45
A catheter assembly comprising a catheter hub having a catheter tube extending from a distal end thereof, a needle hub having a needle extending from a distal end thereof and extending through the catheter hub in a ready to use position, and a valve located inside the catheter hub, the valve comprising:
- a first side having a first surface defining a first plane having a first portion and having a second portion on the first side recessed from the first plane;
- a second side having a second surface opposing the first surface and defining a second plane, the first surface and the second surface defining a thickness of the valve;
- a plurality of slits extending from the first side to the second side of the valve at the second portion, the plurality of slits defining a plurality of flaps with each of the plurality of slits having an inward-most slit point and a radially outward-most point and wherein an imaginary arc connects the radially outward-most points of the plurality of slits to define a circular boundary;
- at least two ribs on the first side, each of said at least two ribs having an exterior surface located on the first plane and extending from a point outside the circular boundary into the circular boundary;
- a valve actuator slidably disposed inside the catheter hub, said valve actuator having an actuator head with a surface for pushing into the valve to deflect the flaps when a surface on a plunger end of the valve actuator is pushed by a connector tip inserted into the catheter hub in a used position;
- and
- wherein the first surface defining the first plane extends radially outwardly of the exterior surface of each of the at least two ribs.
4 more elements
A catheter assembly comprising a catheter hub having a catheter tube extending from a distal end thereof, a needle hub having a needle extending from a distal end thereof and extending through the catheter hub in a ready to use position, and a valve located inside the catheter hub, the valve comprising:
- a first side having a first surface defining a first plane having a first portion;
- a second side having a second surface opposing the first surface and defining a second plane, the first surface and the second surface defining a thickness of the valve;
- a second portion on the first side recessed from the first plane;
- a plurality of slits extending from the first side to the second side of the valve at the second portion, the plurality of slits defining a plurality of flaps with each of the plurality of slits having an inward-most slit point and a radially outward-most point and wherein an imaginary arc connects the radially outward-most points of the plurality of slits to define a circular boundary;
- at least two ribs on the first side, each of said at least two ribs having an exterior surface extending from a point outside the circular boundary into the circular boundary;
- a valve actuator slidably disposed inside the catheter hub, said valve actuator having an actuator head with a surface for pushing into the valve to deflect the flaps when a surface on a plunger end of the valve actuator is pushed by a connector tip inserted into the catheter hub in a used position;
- and
- wherein each of the at least two ribs has an arrow shape or tapered shape located within the circular boundary.
5 more elements
A catheter assembly comprising a catheter hub having a catheter tube extending from a distal end thereof, a needle hub having a needle extending from a distal end thereof and extending through the catheter hub in a ready to use position, and a valve located inside the catheter hub, the valve comprising:
- a first side having a first surface defining a first plane having a first portion;
- a second side having a second surface opposing the first surface and defining a second plane, the first surface and the second surface defining a thickness of the valve;
- a second portion on the first side recessed from the first plane;
- a plurality of slits extending from the first side to the second side of the valve at the second portion, the plurality of slits defining a plurality of flaps with each of the plurality of slits having an inward-most slit point and a radially outward-most point and wherein an imaginary arc connects the radially outward-most points of the plurality of slits to define a circular boundary;
- at least two ribs on the first side, each of said at least two ribs having an exterior surface extending from a point outside the circular boundary into the circular boundary;
- a valve actuator slidably disposed inside the catheter hub, said valve actuator having an actuator head with a surface for pushing into the valve to deflect the flaps when a surface on a plunger end of the valve actuator is pushed by a connector tip inserted into the catheter hub in a used position;
- and
- wherein each of the at least two ribs has a thickness that equals the thickness of the valve.
5 more elements
A catheter assembly comprising a catheter hub having a catheter tube extending from a distal end thereof, a needle hub having a needle extending from a distal end thereof and extending through the catheter hub in a ready to use position, and a valve located inside the catheter hub, the valve comprising:
- a first side having a first surface defining a first plane having a first portion;
- a second side having a second surface opposing the first surface and defining a second plane, the first surface and the second surface defining a thickness of the valve;
- a second portion on the first side recessed from the first plane;
- a plurality of slits extending from the first side to the second side of the valve at the second portion, the plurality of slits defining a plurality of flaps with each of the plurality of slits having an inward-most slit point and a radially outward-most point and wherein an imaginary arc connects the radially outward-most points of the plurality of slits to define a circular boundary;
- at least two ribs on the first side, each of said at least two ribs having an exterior surface extending from a point outside the circular boundary into the circular boundary;
- a valve actuator slidably disposed inside the catheter hub, said valve actuator having an actuator head with a surface for pushing into the valve to deflect the flaps when a surface on a plunger end of the valve actuator is pushed by a connector tip inserted into the catheter hub in a used position;
- and
- wherein the first side of the valve is oriented within the catheter hub to face a proximal direction.
5 more elements
A catheter assembly comprising a catheter hub having a catheter tube extending from a distal end thereof, a needle hub having a needle extending from a distal end thereof and extending through the catheter hub in a ready to use position, and a valve located inside the catheter hub, the valve comprising:
- a first side having a first surface defining a first plane having a first portion;
- a second side having a second surface opposing the first surface and defining a second plane, the first surface and the second surface defining a thickness of the valve;
- a second portion on the first side recessed from the first plane;
- a plurality of slits extending from the first side to the second side of the valve at the second portion, the plurality of slits defining a plurality of flaps with each of the plurality of slits having an inward-most slit point and a radially outward-most point and wherein an imaginary arc connects the radially outward-most points of the plurality of slits to define a circular boundary;
- at least two ribs on the first side, each of said at least two ribs having an exterior surface extending from a point outside the circular boundary into the circular boundary;
- a valve actuator slidably disposed inside the catheter hub, said valve actuator having an actuator head with a surface for pushing into the valve to deflect the flaps when a surface on a plunger end of the valve actuator is pushed by a connector tip inserted into the catheter hub in a used position;
- and
- wherein the second side comprises at least two ribs and wherein the at least two ribs of the second side are aligned with the at least two ribs on the first side.
5 more elements
A method of assembling a catheter assembly having a catheter hub having a catheter tube extending from a distal end thereof, a needle hub, and a valve located inside the catheter hub for controlling fluid flow, the method comprising:
- positioning a valve inside an interior cavity of the catheter hub, the valve comprising:
- a first side having a first surface defining a first plane having a first portion and having a second portion on the first side recessed from the first plane;
- a second side having a second surface opposing the first surface and defining a second plane, the first surface and the second surface defining a thickness of the valve;
- and
- a plurality of slits extending from the first side to the second side of the valve at the second portion, the plurality of slits defining a plurality of flaps with each the plurality of slits having an inward-most slit point and a radially outward-most point and wherein an imaginary arc connects the radially outward-most points of the plurality of slits to define a circular boundary;
- wherein a rib on the first side has an exterior surface located on the first plane and extends from a point outside the circular boundary into the circular boundary;
- and
- wherein the first surface defining the first plane extends radially outwardly of the exterior surface of the rib;
- coupling the needle hub, having a needle, with the catheter hub and extending the needle through the catheter tube in a ready to use position.
6 more elements
A catheter assembly comprising:
- a catheter hub having an interior cavity and a catheter tube extending from a distal end thereof;
- a needle hub having a needle extending from a distal end thereof and extending through the catheter hub and the catheter tube in a ready to use position;
- a needle guard located in the catheter hub for covering a needle tip of the needle in a protective position;
- a valve located in the interior cavity of the catheter hub, the valve comprising:
- a first side having a first surface defining a first plane that extends to an outer perimeter of the valve, the first side having a first portion located on the first plane and a second portion that is recessed from the first plane;
- a second side having a second surface opposing the first surface and defining a second plane, the first surface and the second surface defining a thickness of the valve;
- a plurality of slits extending from the first side to the second side of the valve at the second portion, the plurality of slits defining a plurality of flaps with each of the plurality of slits having an inward-most slit point and a radially outward-most point and wherein an imaginary arc connects the radially outward-most points of the plurality of slits to define a circular boundary;
- a rib located inwardly of the outer perimeter of the valve and having an exterior surface that is co-planar with the first plane, the rib extends from a point outside the circular boundary into the circular boundary;
- and
- a valve opener located in the catheter hub, said valve opener having an actuating head with a surface for deflecting the plurality of flaps when the valve opener is pushed by a connector tip connected to the catheter hub when in a used position.
7 more elements
Dependencies are inferred from the claim text.