US 10,292,705 B2Granted

Surgical apparatus

AssigneeCovidien LP

InventorsDavid Chowaniec, Pawel Abramek, David Fowler, Matthew D'errico

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Abstract

A surgical apparatus includes a handle, an elongate member and a switch actuator. The switch actuator includes an activation link and a switch plunger coupled to the activation link. An electric switch is mounted to the elongate member. A rotatable lock member is mounted to the elongate member and adapted for rotational movement between an unlocked condition and a locked condition. The rotatable lock member includes an actuator stop dimensioned to operatively engage the switch actuator to prevent movement of the switch actuator from a first longitudinal position to a second longitudinal position when in the unlocked condition, and to permit movement of the switch actuator to the second longitudinal position when rotated to the locked condition such that the switch plunger activates the switch. A loading unit is releasably couplable to the rotatable lock member and is secured relative to the elongate member when the rotatable lock member is in the locked condition.

Claims16

Dependent claims

A surgical apparatus, which comprises:

a handle;
an elongate member coupled to the handle and defining a longitudinal axis, and having proximal and distal ends;
a switch actuator mounted to the elongate member, the switch actuator adapted for longitudinal movement relative to the elongate member between first and second longitudinal positions, the switch actuator including an activation link and a switch plunger coupled to the activation link;
an electric switch mounted to the elongate member in longitudinal alignment with the switch plunger;
a rotatable lock member mounted to the elongate member and adapted for rotational movement about the longitudinal axis between an unlocked condition and a locked condition, the rotatable lock member including an actuator stop dimensioned to operatively engage the switch actuator to prevent movement of the switch actuator from the first longitudinal position to the second longitudinal position when the rotatable lock member is in the unlocked condition, and to permit movement of the switch actuator to the second longitudinal position when the rotatable lock member is rotated to the locked condition such that the switch plunger contacts and activates the electric switch;
and
a loading unit releasably couplable to the rotatable lock member and having an end effector dimensioned to perform a surgical procedure, the loading unit being secured relative to the elongate member when the rotatable lock member is in the locked condition.

4 more elements

A surgical apparatus, which comprises:

a handle assembly;
an adapter assembly couplable to the handle assembly, the adapter assembly including:
an elongate member defining a longitudinal axis, and having proximal and distal ends, and defining an inner recess;
a switch actuator including an activation link having a mount tab and a switch plunger having a correspondingly dimensioned opening for receiving the mount tab to mechanically couple the activation link and the switch plunger, the switch plunger at least partially disposed within the inner recess of the elongate member, the switch actuator adapted for longitudinal movement relative to the elongate member between first and second longitudinal positions of the switch actuator whereby the switch plunger traverses the inner recess of the elongate member;
an electric switch mounted to the elongate member in longitudinal alignment with the switch plunger;
and
a rotatable lock member mounted to the elongate member and adapted for rotational movement about the longitudinal axis between an unlocked condition and a locked condition, the rotatable lock member including an actuator stop dimensioned to operatively engage the switch actuator to prevent movement of the switch actuator from the first longitudinal position to the second longitudinal position when the rotatable lock member is in the unlocked condition, and to permit movement of the switch actuator to the second longitudinal position when the rotatable lock member is rotated to the locked condition such that the switch plunger contacts and activates the electric switch;
a loading unit releasably couplable to the rotatable lock member and having an end effector dimensioned to perform a surgical procedure;
and
a controller including logic configured to receive a signal from the electric switch when the rotatable lock member is in the locked condition corresponding to a secured condition of the loading unit relative to the rotatable lock member and the adapter assembly.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/292,463Filed 13 Oct 2016 · us provisional application
Priority: 6 Nov 2015
Published: US 2017/0128067 A111 May 2017
Granted: 21 May 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

A61B 17/072
Surgical staplers , e.g. containing multiple staples or clamps: for applying a row of staples in a single action, e.g. the staples being applied…
A61B 17/07207
For applying a row of staples in a single action, e.g. the staples being applied simultaneously: the staples being applied sequentially
A61B 17/068
Surgical instruments, devices or methods: surgical staplers , e.g. containing multiple staples or clamps
A61B 90/98
Identification means for patients or instruments, e.g. tags: using electromagnetic means, e.g. transponders