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US 2017/0255479 A1Published application
System and method to establish current setpoint for ultrasonic transducer
AssigneeEthicon, Inc.
InventorsWilliam D. Dannaher, Patrick A. Weizman, Eitan T. Wiener
Life of this patent
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Abstract
Systems, devices and methods manage surgical instruments throughout their lifecycle by reprogramming a device to account for operational displacement of ultrasonic components based upon a diagnostic test. A diagnostic test tip is used with a surgical instrument to simulate device usage and capture capacitance and phase margin of the device. This information is used to calculate an optimal current to supply to the device during future procedures.
Claims20
An apparatus comprising:
- (a) a reprogramming device comprising an instrument receptacle;
- (b) a surgical instrument comprising a generator connection and a memory, wherein the generator connection is configured to be connected to the instrument receptacle, wherein the memory is configured to store an original current value and an original phase margin value;
- and
- (c) a test tip configured to be connected to the surgical instrument, the test tip comprising a phase margin sensor;
- wherein the reprogramming device is configured to:
- (i) receive a set of phase margin data from the test tip,
- (ii) receive the original current value and the original phase margin value,
- (iii) determine a new current value based upon the set of phase margin data, the original current value, and the original phase margin value by using a transfer function, and
- (iv) write the new current value to the memory of the surgical instrument.
6 more elements
A method comprising the steps:
- (a) measuring a phase margin of a surgical instrument with a test tip, wherein the test tip is configured to attach to the surgical instrument;
- (b) determining a displacement of the surgical instrument based upon the phase margin;
- (c) determining an optimized current using the displacement and a transfer function;
- and
- (d) configuring the surgical instrument to operate at the optimized current.
2 more elements
An apparatus comprising:
- (a) a reprogramming device comprising an instrument receptacle;
- (b) a surgical instrument comprising a generator connection and a memory, wherein the generator connection is configured to be connected to the instrument receptacle, wherein the memory is configured to store an original current value and an original phase margin value;
- and
- (c) a test tip configured to be connected to the surgical instrument, the test tip comprising a phase margin sensor;
- wherein the reprogramming device further comprises a means for configuring the surgical instrument with a new operating current based on diagnostic data.
2 more elements
Dependencies are inferred from the claim text.