US 11,229,450 B2Granted

Modular battery powered handheld surgical instrument with motor drive

AssigneeCilag GmbH International

InventorsFrederick E. Shelton, IV, David C. Yates, Kevin L. Houser, Jeffrey D. Messerly, Jason L. Harris, Adam D. Hensel

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Abstract

A surgical instrument includes a handle assembly; a shaft assembly and an end effector. The shaft assembly includes an exterior shaft, a first clutch positioned within the exterior shaft to drive a first function of the surgical instrument when engaged. A second clutch within the exterior shaft to drive a second function when engaged. A rotary driver is positioned within the exterior shaft and configured to rotate within the exterior shaft. The rotary driver includes a first clutch engagement mechanism to engage the first clutch and a second clutch engagement mechanism configured to engage the second clutch independent of the first clutch engagement mechanism engaging the first clutch, such that, at different times both the first clutch and the second clutch are engaged simultaneously only the first clutch is engaged only the second clutch is engaged and neither the first clutch nor the second clutch is engaged simultaneously.

Claims19

Dependent claims

A system comprising:

a surgical instrument comprising:
a handle assembly;
a shaft assembly coupled to the handle assembly;
and
an end effector coupled to a distal end of the shaft assembly;
the shaft assembly comprising:
an exterior shaft;
a first clutch positioned within the exterior shaft and configured to drive a first function of the surgical instrument when engaged with a first clutch engagement mechanism;
a second clutch positioned within the exterior shaft and configured to drive a second function of the surgical instrument when engaged with a second clutch engagement mechanism;
and
a rotary driver positioned within the exterior shaft and configured to rotate within the exterior shaft, the rotary driver comprising:
the first clutch engagement mechanism configured to engage the first clutch;
and
the second clutch engagement mechanism configured to engage the second clutch independent of the first clutch engagement mechanism engaging the first clutch, such that, at different times:
the first clutch is engaged with the first clutch engagement mechanism and the second clutch is engaged with the second clutch engagement mechanism simultaneously;
only the first clutch is engaged with the first clutch engagement mechanism without the second clutch being engaged with the second clutch engagement mechanism;
only the second clutch is engaged with the second clutch engagement mechanism without the first clutch being engaged with the first clutch engagement mechanism;
and
neither the first clutch nor the second clutch is engaged with the first clutch engagement mechanism or the second clutch engagement mechanism.

16 more elements

A surgical instrument comprising:

a handle assembly;
a generator assembly;
a shaft assembly coupled to the handle assembly;
and
an end effector coupled to a distal end of the shaft assembly;
the shaft assembly comprising:
an exterior shaft;
a first clutch positioned within the exterior shaft and configured to drive a first function of the surgical instrument when engaged with a first clutch engagement mechanism;
a second clutch positioned within the exterior shaft and configured to drive a second function of the surgical instrument when engaged with a second clutch engagement mechanism;
and
a rotary driver positioned within the exterior shaft and configured to rotate within the exterior shaft, the rotary driver comprising:
the first clutch engagement mechanism configured to engage the first clutch;
and
the second clutch engagement mechanism configured to engage the second clutch independent of the first clutch engagement mechanism engaging the first clutch, such that, at different times:
the first clutch is engaged with the first clutch engagement mechanism and the second clutch is engaged with the second clutch engagement mechanism simultaneously;
only the first clutch is engaged with the first clutch engagement mechanism without the second clutch being engaged with the second clutch engagement mechanism;
only the second clutch is engaged with the second clutch engagement mechanism without the first clutch being engaged with the first clutch engagement mechanism;
and
neither the first clutch nor the second clutch is engaged with the first clutch engagement mechanism or the second clutch engagement mechanism.

16 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/382,292Filed 16 Dec 2016 · us provisional application
Priority: 15 Jan 2016
Published: US 2017/0202572 A120 Jul 2017
Granted: 25 Jan 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification60 codes

A61B 17/320092
Using mechanical vibrations, e.g. ultrasonic: with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
A61B 17/320068
Surgical cutting instruments: using mechanical vibrations, e.g. ultrasonic
A61B 18/1206
By passing a current through the tissue to be heated, e.g. high-frequency current: generators therefor
A61B 18/1445
Probes having pivoting end effectors, e.g. forceps: at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod