Secondly, the development of the Ventrain® (Ventinova Medical B.V., Eindhoven) device has made emergency ventilation through a narrow-bore catheter possible [ 46].
We speculate that a narrow bore designed catheter, instead of conventional endotracheal tube was the main reason for the ease, because an external diameter about 1 mm of the catheter could be passed down and easily through the vocal cords.
For these reasons, and with the recognition of the potential benefits of MIST, our research group has developed an alternative and novel MIST technique using a narrow bore vascular catheter (16 gauge Angiocath, Product No. 382259, Becton Dickinson, Sandy, UT, USA) [ 35].
A small, flow-regulated, manually operated ventilator designed for ventilation through a narrow-bore transtracheal catheter (TTC) has become available (Ventrain, Dolphys Medical BV, Eindhoven, The Netherlands).
We have developed a flexible, narrow diameter TB-OFDI catheter that is capable of acquiring high-resolution OFDI images of the peripheral lung.
CED critically depends on the use of a catheter with a narrow outer diameter and low infusion rate.
In addition, since the ridge of atrial tissue separating the right superior and inferior veins is narrow, an unstable position of a catheter in this area potentially can result in application of energy within one of the veins [45]. 4.
First came angioplasties, in which a balloon-tipped catheter is inserted into a narrowed blood vessel and then inflated, stretching the vessel to improve blood flow.
The manometry study could not be completed in case 15 before POEM because the measuring catheter did not pass through the narrow segment of the esophagus.
