Abstract: An access port comprises a housing with a first opening and a self sealing septum sealing the first opening, the septum including an attachment portion for securing the septum to the housing, the attachment portion including a chamfer which, when the septum is mounted within the housing is subject to a force oriented substantially perpendicularly with respect to a plane of the outer surface, the chamfered portion redirecting a portion of the force to compress the outer surface. A septum for an access port comprises an attachment portion for abutting a septum seat of the access port and an operative surface permitting penetration by a needle and resealing itself after removal of the needle in combination with a chamfered portion providing a transition between the attachment portion and the operative surface, the chamfered portion re-directing a component of a force applied to the chamfered portion to compress the operative surface.

Abstract: A flow control tip for a catheter comprises a partition dividing the catheter into first and second lumens, a first orifice fluidly connected to the first lumen and a second orifice fluidly connected to the second lumen, the first orifice being proximal to the second orifice, an elongate protrusion extending along a portion of the partition substantially along a centerline of the elongated body and a deflecting surface extending at an angle relative to the protrusion to direct flow from the first orifice away from the centerline.

Abstract: A valve assembly for vascular access, comprising a body defining a lumen adapted for flowing blood, the body including a luer housing for connection with a first blood conduit and a barb housing for connection with a second blood conduit and a plurality of slitted membranes disposed within the body portion, each of the slitted membranes generating a partial pressure drop for flow therethrough, each of the partial pressure drops being smaller than a total pressure drop for flow through the body portion.

Abstract: An implant adapted to be retained in a body lumen includes a barb for engaging the lumen wall. The barb includes a yieldable element adapted to yield in response to a force, above a predetermined limit, tending to cause migration of the implant. The barb may comprise a shape memory material adapted to change shape when the material undergoes a stress induced phase change and thereby to disengage from the lumen wall.

Abstract: A flow control tip for a catheter comprises a partition dividing the catheter into first and second lumens, a first orifice fluidly connected to the first lumen and a second orifice fluidly connected to the second lumen, the first orifice being proximal to the second orifice, an elongate protrusion extending along a portion of the partition substantially along a centerline of the elongated body and a deflecting surface extending at an angle relative to the protrusion to direct flow from the first orifice away from the centerline.

Abstract: A septum for a catheter port comprises a proximal port sealing surface sized to cover a port opening and a distal fluid chamber facing surface which, when the septum is mounted in a port, faces a fluid chamber of the port in combination with a peripheral portion extending radially beyond the port sealing surface for engaging a housing of the port and retaining the septum in place on the housing and a protrusion extending distally beyond the fluid chamber facing surface so that, when the septum is mounted in a port, the protrusion extends distally into a fluid chamber thereof, a radially outer surface of the protrusion frictionally engaging a wall of the fluid chamber.

Abstract: An enhanced optical delay line device for providing multiple degree of freedom active control, including first and second actively-controlled mirrors, each of the actively-controlled mirrors having two rotational degrees of freedom and one translational degree of freedom. The first actively-controlled mirror is mounted substantially orthogonally to the second actively-controlled mirror. The system also includes a closed-loop control system, the control system providing six mechanical degrees of freedom of active control for the enhanced optical delay line device by controlling the first and second actively-controlled mirrors based upon a command input and mirror position signals. The present invention is smaller than conventional optical delay line devices, has better performance, and eliminates the need for one of the FSMs, bringing the total number of mechanisms down to two from three.

Abstract: An implant adapted to be retained in a body lumen includes a barb for engaging the lumen wall. The barb includes a yieldable element adapted to yield in response to a force, above a predetermined limit, tending to cause migration of the implant. The barb may comprise a shape memory material adapted to change shape when the material undergoes a stress induced phase change and thereby to disengage from the lumen wall.

Abstract: A valve assembly for vascular access, comprising a body defining a lumen adapted for flowing blood, the body including a luer housing for connection with a first blood conduit and a barb housing for connection with a second blood conduit and a plurality of slitted membranes disposed within the body portion, each of the slitted membranes generating a partial pressure drop for flow therethrough, each of the partial pressure drops being smaller than a total pressure drop for flow through the body portion.

Abstract: An access port comprises a housing with a first opening formed therein and a septum mounted within the housing sealing the first opening, the septum including an outer surface covering the first opening and self-sealing after penetration by a needle and an attachment portion for securing the septum to the housing, the attachment portion including a chamfer which, when the septum is mounted within the housing is subject to a force oriented substantially perpendicularly with respect to a plane of the outer surface, the chamfered portion redirecting a portion of the force to compress the outer surface.