Patent ID: 9522017
Filing Date: 2016-12-20
CPC Classification: A61B,A61M

Claim Text:
1. An assembly for use with a laparoscope, the assembly comprising: a multi-lumen sheath sized and configured to mount over the shaft of the laparoscope, the sheath including a deflector assembly configured to extend a predetermined distance beyond a lens of the laparoscope; a tubing set attached to the multi-lumen sheath and configured to connect to an external gas insufflation circuit to deliver gas from the insufflation circuit to flow through at least one lumen of the multi-lumen sheath to the deflector assembly and over the lens of the laparoscope to defog the lens; a gas reservoir connected to the tubing set, the gas reservoir configured to store gas when gas from the external insufflation circuit flows through the tubing set and to discharge the stored gas into the multi-lumen sheath in a first path when gas from the external insufflation circuit does not flow through the tubing set so as to provide continuous flow of gas at a prescribed velocity through the multi-lumen sheath; a one-way valve in the tubing set between the external insufflation circuit and the reservoir, the one-way valve configured to allow gas to flow therethrough from the external insufflation circuit to the reservoir in a second path when gas from the external insufflation circuit flows through the tubing set and configured to prevent gas from flowing therethrough when gas from the external insufflation circuit does not flow through the tubing set; and a bulb on the tubing set configured to deliver a burst of gas through at least one lumen of the multi-lumen sheath to the deflector assembly and over the lens at a velocity over the prescribed velocity to remove debris from the lens of the laparoscope, the bulb in-line with the first path and the second path.