Medicament Delivery System Having a Selectable Delivery Spray Pattern and a Method of its Use

摘要

Provided herein are medicament delivery systems for selectively providing radial, distal, or a combination radial and distal delivery spray patterns of a medicament, and a method of their use to treat a patient's airway. Generally, a medicament delivery system comprises an elongate shaft, a medicament source, and a means for controlling the delivery spray pattern of the elongate shaft. In use, the medicament delivery system is inserted into a patient's airway during a laryngoscopy procedure to deliver a topical anesthetic to the airway. The medicament delivery device can be used with both direct and indirect view laryngoscopy procedures.

主权项

1. A medicament delivery system comprising:
a medicament source; a flexible elongate shaft having a distal end and a proximal end; a radial delivery lumen and a distal delivery lumen extending along the length of the elongate shaft; a distal outlet fluidly connected to the distal lumen; a plurality of ports spaced radially along the length of the elongate shaft, the ports fluidly connected to the radial lumen; a stopcock comprising a casing and a rotatable bore in the casing, the casing comprising an inlet stem attached to the medicament source and an outlet stem attached to the proximate end of the elongate shaft; the bore comprising a first channel and a second channel, the first channel having a cross-section that matches the cross-section of the radial delivery lumen and the distal delivery lumen, the second channel having a cross-section that matches the cross-section of the distal delivery lumen; rotation of the bore to a first position places the first channel in fluid communication with (i) the radial delivery lumen and the distal delivery lumen and (ii) the medicament source, and the elongate shaft delivers a radial delivery pattern and a distal delivery spray pattern; and rotation of the bore to a second position places the second channel in fluid communication with (i) the distal delivery lumen and (ii) the medicament source, and the elongate shaft delivers a distal delivery spray pattern.