US 12,419,640 B2
Powered surgical tack applier
Russell Pribanic, Roxbury, CT (US); Christopher Switalski, Glastonbury, CT (US); David A. Zeichner, Oxford, CT (US); and David A. Nicholas, Trumbull, CT (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Jan. 12, 2022, as Appl. No. 17/574,448.
Application 17/574,448 is a continuation of application No. 16/532,534, filed on Aug. 6, 2019, granted, now 11,234,701.
Claims priority of provisional application 62/734,290, filed on Sep. 21, 2018.
Prior Publication US 2022/0133324 A1, May 5, 2022
Int. Cl. A61B 17/10 (2006.01); A61B 17/00 (2006.01); A61B 90/00 (2016.01); A61F 2/00 (2006.01)
CPC A61B 17/10 (2013.01) [A61B 90/08 (2016.02); A61F 2/0063 (2013.01); A61B 2017/00017 (2013.01); A61B 2017/00057 (2013.01); A61B 2017/00128 (2013.01); A61B 2017/00398 (2013.01); A61B 2017/00402 (2013.01); A61B 2017/00424 (2013.01); A61B 2017/00734 (2013.01); A61B 2090/0803 (2016.02); A61F 2002/0072 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A surgical tack applier comprising:
an elongate member including a loading unit and an articulation portion configured to pivot with respect to a longitudinal axis defined by the elongate member;
an actuation assembly including:
a motor;
an actuation rod having a first end operatively coupled to an output shaft of the motor for concomitant rotation therewith and a second end operatively coupled to the loading unit, rotation of the actuation rod ejecting a surgical tack from the loading unit in a first direction; and
an actuation switch configured to activate the motor; and
an articulation lever assembly including:
an articulation rod operatively coupled to the articulation portion of the elongate member such that axial displacement of the articulation rod directs the surgical tack in a second direction different from the first direction; and
an articulation lever operatively coupled to the articulation rod to effect the axial displacement of the articulation rod, wherein the articulation rod defines a transverse bore dimensioned to receive a drive pin coupled to the articulation lever, the drive pin defining a bore dimensioned to receive the actuation rod therethrough.
 
8. A surgical tack applier comprising:
a loading unit including a plurality of surgical tacks;
an actuation assembly including:
a motor; and
an actuation rod having a first end operatively coupled to an output shaft of the motor for concomitant rotation therewith, and a second end operatively coupled to the loading unit such that rotation of the actuation rod ejects a surgical tack of the plurality of surgical tacks from the loading unit; and
an articulation lever assembly configured to articulate the loading unit, the articulation lever assembly including:
an articulation rod operatively coupled to the loading unit such that axial displacement of the articulation rod causes articulation of the loading unit;
an articulation lever operatively coupled to the articulation rod, the articulation lever including a housing portion;
articulation pivot arms pivotably coupled to the articulation rod, the articulation pivot arms being received in the housing portion of the articulation lever; and
a biasing member received between the articulation pivot arms to bias the housing portion of the articulation lever away from the articulation pivot arms,
wherein the articulation rod defines a transverse bore dimensioned to receive a drive pin coupled to the articulation lever, the drive pin defining a bore dimensioned to receive the actuation rod therethrough.
 
12. A surgical tack applier comprising:
a loading unit;
an actuation assembly including:
a motor; and
an actuation rod having a first end operatively coupled to an output shaft of the motor for concomitant rotation therewith such that rotation of the actuation rod ejects a surgical tack from the loading unit in a first direction; and
an articulation lever assembly including an articulation lever and an articulation rod, the articulation rod operatively coupled to the loading unit such that axial displacement of the articulation rod directs the surgical tack to a second direction different from the first direction, wherein the articulation rod defines a transverse bore dimensioned to receive a drive pin coupled to the articulation lever, the drive pin defining a bore dimensioned to receive the actuation rod therethrough.