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US 10,175,127 B2Granted
End-effector force measurement drive circuit
AssigneeCovidien LP
InventorsEthan Collins, John Hryb, Anthony Calderoni, John Pantazis
Life of this patent
Estimating the term…
Abstract
A surgical instrument for applying fasteners includes a drive motor, a replaceable loading unit having an end-effector assembly, and an adapter configured to releasably couple a replaceable loading unit to the drive motor. The adapter includes a strain gauge having a drive circuit coupled thereto. The strain gauge and the drive circuit are configured to directly measure a driving force in the adapter.
Claims10
A surgical instrument for applying fasteners, comprising:
- a handle assembly;
- a drive motor disposed within the handle assembly;
- a replaceable loading unit having an end-effector assembly;
- and
- an adapter configured to releaseably couple to the handle assembly and to releaseably couple to the replaceable loading unit such that the replaceable loading unit is coupled to the drive motor, the adapter including a strain gauge and a drive circuit directly coupled to the strain gauge, the drive circuit including a microprocessor within the adapter, wherein the strain gauge and the drive circuit are configured to directly measure a driving force in the adapter.
2 more elements
Dependencies are inferred from the claim text.