Patent ID: 9554826
Date: 2017-01-31
CPC Classifications: A61B,A61M

Claim:
1. A method of sonographic visualization of a body structure, comprising, a) providing a contrast medium generating and delivery device comprising a container assembly comprising a first and second syringe, the first syringe for containing saline and the second syringe, in fluid connection with an air port, for containing air or gas, first and second syringe plungers, respectively disposed within the first and second syringes for moving saline or air or gas into the syringe and for moving the contained saline or air or gas from the respective syringe, and connections for fluid connection of the first and second syringes to a contrast medium generating chamber comprising a static mixer, a pressure relief valve distal to and operably associated with the contrast medium generating chamber, and an exit port distal to the pressure relief valve; b) simultaneously filling the first syringe with saline and the second syringe with air by placing the exit port in a container of saline and moving both syringe plungers in a proximal direction to draw saline into the first syringe and air or gas into the second syringe through the air port, wherein at least one one way check valve in fluid connection with the second syringe allows for only air or gas to enter the second syringe; c) moving the saline and air or gas from the respective syringe to the contrast medium generating container to generate a contrast medium composition comprising saline and air or gas; d) providing the contrast medium composition to a body structure via a catheter comprising a catheter delivery end positioned in the same or a different body structure; and e) viewing the contrast medium composition in one or more body structures by ultrasound.