Patent attributes
Described herein are cannulas that comprise a cannula tube and a cannula tip. The cannula tube comprises a proximal end, a distal end, a cannula tube lumen, a sidewall, and a sidewall opening extending through the sidewall, the sidewall opening a proximal end and distal end. The cannula tip is secured to the distal end of the cannula tube and comprises a proximal tip portion that is inserted into the cannula tube lumen and a distal tip portion that extends beyond the distal end of the cannula tube. The cannula tip is configured to allow fluid to flow therethrough and is configured to eject a distal tip of an elongated device through the sidewall opening of the cannula tube as the elongated device is inserted through the cannula tube from the proximal end of the cannula tube.