US 12,390,243 B2
Fluid management systems and methods
Csaba Truckai, Saratoga, CA (US); and Tamas J. Truckai, Saratoga, CA (US)
Assigned to Meditrina, Inc., San Jose, CA (US)
Filed by Meditrina, Inc., San Jose, CA (US)
Filed on May 19, 2021, as Appl. No. 17/303,080.
Claims priority of provisional application 63/027,554, filed on May 20, 2020.
Prior Publication US 2021/0361311 A1, Nov. 25, 2021
Int. Cl. A61B 17/32 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/32002 (2013.01) [A61B 2017/0023 (2013.01); A61B 2017/0046 (2013.01); A61B 2017/320032 (2013.01); A61B 2217/005 (2013.01); A61B 2562/0247 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A tissue resecting device comprising:
a handle carrying a motor drive comprising a drive shaft;
an elongated sleeve assembly coupled to the handle, the elongated sleeve assembly having an outer sleeve comprising a distal opening for receiving tissue and a plurality of outer teeth, and a moveable inner sleeve adapted to resect tissue received by an inner window at a distal end of the inner sleeve, wherein the inner window comprises a plurality of inner teeth configured to resect tissue received in the distal opening;
a peristaltic pump carried by the handle, wherein the peristaltic pump comprises one or more rollers, wherein a proximal end of the inner sleeve is fixed to a central shaft of the peristaltic pump, wherein the central shaft contacts each of the one or more rollers and connects to the drive shaft such that the motor drive is configured to rotate the central shaft and the one or more rollers with respect to a longitudinal axis of the elongated sleeve assembly; and
a tissue trap carried by the handle;
wherein the motor drive is adapted to move the inner sleeve to resect tissue, and adapted to provide negative pressure in a passageway in the inner sleeve to aspirate fluid and resected tissue through the passageway and into the tissue trap.