Patent ID: 8715233
Filing Date: 2014-05-06
Classification: A61B,A61M

Abstract:
1. A visual-aid device for vascular needle insertion comprising: a needle having a proximal end, a sharp distal end, and a lumen extending between the proximal and distal ends; a flexible catheter having a lumen configured to receive the distal end of the needle therethrough; a flash chamber located at the proximal end of the needle and in fluid communication with the needle lumen, the flash chamber comprising a non-opaque portion configured to permit visualization of a body fluid located inside the chamber from outside of the chamber; a filter attached to the flash chamber and having a proximal side and a distal side, the distal side being located in fluid communication with the inside of the flash chamber and the proximal side being located in fluid communication with the outside of the flash chamber, the filter being configured to allow air to pass therethrough and to prevent or inhibit liquid from passing therethrough; and a light emitting assembly having an output optically coupled to the needle such that light from the light emitting assembly can travel from the proximal end of the needle through the distal end of the needle to project a visible spot on an object adjacent to the distal end of the needle when the filter is attached to the flash chamber.