Line Draw Device for Direct Arterial Blood Sampling

A method of manufacturing an arterial blood draw device operable to collect an arterial blood sample, the method comprising:

• providing a catheter tube;
• housing the catheter tube within an inner volume of a housing having a proximal end portion and a distal end portion, the catheter tube movable within the housing;
• coupling an advancement member to the catheter tube and to housing, with the advancement member movable relative to the housing, so as to cause a corresponding movement of the catheter tube between a first position, in which the catheter tube is disposed within the housing, and a second position, in which a distal end of the catheter tube is disposed beyond the distal end portion of the housing;
• connecting a secondary catheter to the advancement member, the secondary catheter extending proximally from the advancement member and out through the proximal end portion of the housing, the secondary catheter in fluid communication with the catheter tube;
• connecting a collection device at a proximal end of the secondary catheter, the collection device comprising one of a vacuum-assisted collection device and a non-vacuum-assisted collection device;
• and
• configuring the catheter tube and the secondary catheter to collectively provide a fluid path having a geometric factor, Gf, defined as a ratio of a length of the fluid path, L, to an inner diameter of the fluid path, D, with the geometric factor, Gf, having a first value or value range when the collection device is a vacuum-assisted collection device and having a second value or value range when the collection device is a non-vacuum-assisted collection device.