US 12,390,208 B2
Wound retractor and diffuser
Bernard Tsz Lun Ip, Auckland (NZ); Joseph Patrick Walter Strevens, Auckland (NZ); Jessica Rachel Fogarin, Auckland (NZ); Jonathan Stuart McFedries, Auckland (NZ); James Alexander Gordon, Auckland (NZ); Michael Joseph Blackhurst, Auckland (NZ); Jonathan David Harwood, Auckland (NZ); Ali Ghalib Abdul Rahman Ghalib, Auckland (NZ); and Natalie May Robertson, Auckland (NZ)
Assigned to Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed by Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed on Sep. 7, 2023, as Appl. No. 18/462,813.
Application 18/462,813 is a continuation of application No. 17/132,565, filed on Dec. 23, 2020, granted, now 11,779,321.
Application 17/132,565 is a continuation of application No. 15/539,575, granted, now 10,925,591, issued on Feb. 23, 2021, previously published as PCT/NZ2015/050219, filed on Dec. 23, 2015.
Claims priority of provisional application 62/096,469, filed on Dec. 23, 2014.
Prior Publication US 2024/0074743 A1, Mar. 7, 2024
Int. Cl. A61B 17/02 (2006.01); A61B 17/34 (2006.01); A61B 90/40 (2016.01)
CPC A61B 17/0218 (2013.01) [A61B 17/02 (2013.01); A61B 2017/0212 (2013.01); A61B 2017/0225 (2013.01); A61B 17/3423 (2013.01); A61B 2017/349 (2013.01); A61B 2017/3492 (2013.01); A61B 2090/401 (2016.02); A61B 2217/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A diffuser configured to deliver a diffuse gases flow across a cavity during open surgery, the diffuser comprising:
an interface tube comprising a proximal end and a distal end, the distal end configured to connect to a gases supply; and
a diffuser interface positioned at the proximal end of the interface tube, the diffuser interface configured for receiving gases from the gases supply through the interface tube, the diffuser interface comprising:
a diffusion mechanism comprising a gas permeable material configured to allow the gases to be directed across an opening of the cavity;
a gases outlet configured to be positioned outside of the cavity; and
an impermeable material.