US 12,082,973 B2
Stiff sheath for imaging probe
Surag Mantri, East Palo Alto, CA (US); and Kevin Patrick Staid, Lowell, MA (US)
Assigned to PROCEPT BioRobotics Corporation, San Jose, CA (US)
Filed by PROCEPT BioRobotics Corporation, Redwood City, CA (US)
Filed on Jul. 14, 2023, as Appl. No. 18/352,404.
Application 18/352,404 is a continuation of application No. 17/247,922, filed on Dec. 30, 2020, granted, now 11,751,846.
Application 17/247,922 is a continuation of application No. PCT/US2020/021708, filed on Mar. 9, 2020.
Claims priority of provisional application 62/815,331, filed on Mar. 7, 2019.
Prior Publication US 2023/0355207 A1, Nov. 9, 2023
Int. Cl. A61B 8/00 (2006.01)
CPC A61B 8/445 (2013.01) [A61B 8/4455 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An imaging system to image tissue of a patient, comprising:
an imaging probe comprising a housing, the imaging probe configured to be inserted into the patient;
a stiff sheath, the stiff sheath comprising an internal channel sized to receive the imaging probe, a proximal end, and a closed distal end, wherein the closed distal end is rounded for advancement into the patient;
a proximal seal at the proximal end of the stiff sheath to decrease leakage of fluid from an interior of the stiff sheath;
a fluid source coupled to an interior chamber of the stiff sheath; and
an evacuation channel in fluid communication with the interior chamber of the stiff sheath;
wherein the imaging probe is removable from the stiff sheath;
wherein the housing of the imaging probe is configured to be movable in a reciprocating motion relative to the proximal seal; and
wherein the stiff sheath and the housing of the imaging probe are sized and arranged to pump fluid with the reciprocating motion of the imaging probe in the stiff sheath.