Patent AU-2023263543-A1 (AU)
Title: Handheld electromechanical surgical system
Inventor: PATRICK MOZDZIERZ
IPC: A61B17/115
Filed: 2023-11-10
Abstract: HANDHELD ELECTROMECHANICAL SURGICAL SYSTEM 
ABSTRACT 
A handheld electromechanical surgical system configured for selective connection with a 
surgical reload in order to actuate the surgical reload to perform at least one function, the 
surgical reload including an annular staple pusher for firing an annular array of staples thereof, 
and a circular knife carrier for translating an annular knife independently of the staple pusher; 
the surgical system comprising: a handheld electromechanical surgical device including: a 
device housing (10); and at least one rotatable drive shaft supported in and projecting from the 
device housing (10); and an adapter assembly (200) selectively connectable between the housing 
of the surgical device and the surgical reload, the adapter assembly (200) comprising: an adapter 
housing configured and adapted for connection with the surgical device and to be in operative 
communication with each rotatable drive shaft of the surgical device; an outer tube having a 
proximal end supported by the adapter housing and a distal end configured and adapted for 
connection with the surgical reload, wherein the distal end of the outer tube is in operative 
communication with each of the annular staple pusher and the circular knife carrier of the 
surgical reload; a trocar assembly (270) supported within the outer tube, the trocar assembly 
including a trocar member threadably supported on a distal end of a trocar drive screw; and a 
first force/rotation transmitting/converting assembly (240) for interconnecting a respective one 
drive shaft of the surgical device and the trocar drive screw of the trocar assembly, wherein the 
first force/rotation transmitting/converting assembly (240) includes: a first proximal rotation 
receiving member that is connectable to a respective rotatable drive shaft of the surgical device; 
and a first distal force transmitting member that is connected to the trocar drive screw of the 
trocar assembly, the first distal force transmitting member being non-rotatably connected to the 
first proximal rotation receiving member; at least a second force/rotation transmitting/converting 
assembly (250) for interconnecting a respective one drive shaft of the surgical device and a 
respective one of the annular staple pusher and the circular knife carrier of the surgical reload, 
wherein: the second force/rotation transmitting/converting assembly (250) includes: a second 
proximal rotation receiving member that is connectable to a respective rotatable drive shaft of 
the surgical device; and a second distal force transmitting member that is connectable to the 
respective one of the annular staple pusher and the circular knife carrier of the surgical reload, 
the second distal force transmitting member being connected to the second proximal rotation 
receiving member in such a manner whereby rotation of the second proximal rotation receiving 
member is converted to axial translation of the second distal force transmitting member, and in 
turn, axial translation of the respective one of the annular staple pusher and the circular knife 
carrier of the surgical reload.