US 10,238,325 B2 · Medical device for collection of a biological sample

Abstract

A biological fluid sampling device for collecting a blood sample from a separate vascular access device and for ejecting a portion of the collected sample to a point-of-care testing device for analysis is provided. The biological fluid sampling device includes a body enclosing a reservoir. The reservoir has an internal volume sufficient to contain enough blood for use in a diagnostic test. The sampling device further includes: an access lumen extending from a distal end of the body for establishing fluid communication between a separate vascular access device and the reservoir; an outflow lumen also in fluid communication with the reservoir; and a removable vented cap attached to the outflow lumen including a gas permeable vent in gaseous communication between the reservoir and ambient air. In addition, several sample and transfer devices are provided for obtaining a sample from a subject and transferring the sample to a point-of-care testing device.

Claims20

Dependent claims

A biological fluid sampling device engageable with a separate vascular access device, comprising:

a housing enclosing a biological fluid reservoir, the reservoir defining an interior;
an access lumen extending from a portion of the housing and establishing fluid communication between the separate vascular access device and the interior of the reservoir;
an outflow lumen extending from a portion of the housing, the outflow lumen having a first end provided in fluid communication with the interior of the reservoir and a second end;
and
a vented cap removably disposed over the second end of the outflow lumen such that the vented cap is separable from the outflow lumen, the vented cap comprising:
a gas permeable vent in gaseous communication between the interior of the reservoir and an ambient environment;
and
a channel in fluid communication with the outflow lumen and positioned between the vent and the reservoir.

5 more elements

A biological fluid sampling and collection assembly comprising:

a biological fluid sampling device comprising:
a housing enclosing a biological fluid reservoir, the reservoir defining an interior;
an access lumen extending from a portion of the housing and establishing fluid communication between a separate vascular access device and the interior of the reservoir;
and
an outflow lumen extending from a portion of the housing, the outflow lumen having a first end provided in fluid communication with the interior of the reservoir and a second end, wherein the outflow lumen is generally disposed on an opposite end of the housing from the access lumen;
and
a sample collection device comprising:
an adapter for accessing an interior of a sample container and for establishing fluid communication between the biological fluid reservoir and an interior of the sample container, thereby allowing fluid communication between the interior of the reservoir and the interior of the sample container;
and
a flow restrictor engaged with the adapter, the flow restrictor transitionable from an open position, in which fluid communication is permitted between the biological fluid reservoir and the interior of the sample container, to a closed position, in which the biological fluid reservoir is in fluid isolation from the interior of the sample container.

7 more elements

Dependencies are inferred from the claim text.

Medical device for collection of a biological sample

Life of this patent

Medical device for collection of a biological sample

Life of this patent

Abstract

Claims20