US 12,433,578 B2
Sealant injection needle assembly and sealant delivery apparatus for use in a lung access procedure
Jordan P. Addison, Gilbert, AZ (US); Heather A. Storm, Phoenix, AZ (US); and Chad Van Liere, Phoenix, AZ (US)
Assigned to Bard Peripheral Vascular, Inc., Franklin Lakes, NJ (US)
Appl. No. 17/906,421
Filed by BARD PERIPHERAL VASCULAR, INC., Franklin Lakes, NJ (US)
PCT Filed Mar. 20, 2020, PCT No. PCT/US2020/023761
§ 371(c)(1), (2) Date Sep. 15, 2022,
PCT Pub. No. WO2021/188112, PCT Pub. Date Sep. 23, 2021.
Prior Publication US 2023/0172597 A1, Jun. 8, 2023
Int. Cl. A61B 17/00 (2006.01); A61M 5/158 (2006.01); A61M 5/19 (2006.01); A61M 25/00 (2006.01); A61M 25/01 (2006.01)
CPC A61B 17/0057 (2013.01) [A61B 2017/00495 (2013.01); A61B 2017/0065 (2013.01); A61M 5/1582 (2013.01); A61M 5/19 (2013.01); A61M 2025/004 (2013.01); A61M 2025/0175 (2013.01); A61M 2205/582 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A sealant injection needle assembly for use with a syringe-type applicator having a first sealant component chamber and a second sealant component chamber, comprising:
a cannula assembly having a cannula hub and a cannula, the cannula having a lumen and a distal end, the cannula hub being fixedly connected to the cannula, the cannula having a first longitudinal sealant passage and a second longitudinal sealant passage, the first longitudinal sealant passage having a first proximal sealant port and a first distal sealant port, the second longitudinal sealant passage having a second proximal sealant port and a second distal sealant port, the first proximal sealant port configured for fluid communication with the first sealant component chamber, and the second proximal sealant port configured for fluid communication with the second sealant component chamber; and
a stylet assembly having a stylet advance hub and a stylet, the stylet advance hub being fixedly connected to the stylet, the stylet configured for longitudinal movement in the lumen of the cannula, the stylet having a first stage position and a second stage position, the stylet having an outer surface that includes a first exterior circumvolving channel and a second exterior circumvolving channel, wherein the first exterior circumvolving channel is longitudinally spaced apart from the second exterior circumvolving channel, wherein:
when the stylet is in the first stage position, the first exterior circumvolving channel of the stylet is in fluid communication with both of the first distal sealant port and the second distal sealant port of the cannula; and
when the stylet is in the second stage position, the second exterior circumvolving channel of the stylet is in fluid communication with both of the first distal sealant port and the second distal sealant port of the cannula.