US 12,446,916 B2
Multi-phasic handpiece for excision of hair grafts
Ronald David Benitez Ojeda, Asuncion (PY); Luis Roberto Trivellini, Malaga (ES); and Parsa Mohebi, Woodland Hills, CA (US)
Assigned to Mamba Instruments S.A., Asunción (PY)
Filed by Mamba Instruments S.A., Asuncion (PY)
Filed on Aug. 4, 2023, as Appl. No. 18/365,477.
Prior Publication US 2025/0040958 A1, Feb. 6, 2025
Int. Cl. A61B 17/322 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/322 (2013.01) [A61B 2017/00022 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An extraction device, comprising:
a motor;
a driveshaft operatively coupled to the motor and driven to rotate thereby;
a punch tool directly coupled to a distal end of the driveshaft to rotate therewith, and arranged to be in physical contact with a skin layer during operation of the extraction device;
a force sensor operatively coupled to the driveshaft to measure a force exerted thereupon by the skin layer; and
a controller communicatively coupled to the motor and to the force sensor,
wherein the controller is configured to:
define a plurality of rotary modes;
define a plurality of multiphasic modes, each multiphasic mode comprising at least two rotary modes from the plurality of rotary modes;
receive a selection of a particular multiphasic mode from the plurality of multiphasic modes; and
provide, based on the selection, a corresponding control signal to the motor, the corresponding control signal instructing the motor to operate in the selected multiphasic mode.