US 11,925,782 B2
Apparatus and method for cannulation of vascular access vessel
Shawn M. Gage, Raleigh, NC (US); Joseph Knight, Durham, NC (US); Michael Lawson, Durham, NC (US); and Craig Nichols, Carrboro, NC (US)
Assigned to InnAVasc Medical, Inc., Durham, NC (US)
Filed by InnAVasc Medical, Inc., Durham, NC (US)
Filed on May 18, 2020, as Appl. No. 16/877,054.
Application 16/877,054 is a division of application No. 16/175,698, filed on Oct. 30, 2018.
Prior Publication US 2020/0276430 A1, Sep. 3, 2020
Int. Cl. A61M 39/02 (2006.01); A61M 1/30 (2006.01); A61M 1/36 (2006.01)
CPC A61M 39/0208 (2013.01) [A61M 1/30 (2013.01); A61M 1/3655 (2013.01); A61M 2039/0238 (2013.01); A61M 2205/583 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for rotatable selection of sites for cannulation through skin of a patient of a subcutaneous vascular access vessel, the cannulation site selection method comprising steps of:
providing a template having an inner surface and an outer surface, the template defining an opening for a plurality of zones, each of the plurality of zones configured for receiving a plurality of simultaneous cannulations accessing the vascular access vessel;
marking the outer surface of the template, the marking defining each of the plurality of zones for use as cannulation sites along the vascular access vessel;
positioning the template on the skin of the patient adjacent the subcutaneous vascular access vessel such that the opening aligns with the vascular access vessel; and
using the marking for selecting a first zone for a cannulation site into the vascular access vessel such that the cannulation site in the first zone is spaced from and not adjacent to a second zone used for cannulation immediately previously to the first zone.