Authentication and information system for reusable surgical instruments
First Claim
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1. A method of authenticating first and second components of a surgical system, the method comprising:
- receiving a first authentication signal of a first component from a first microchip at a second microchip over a single wire bus of the second microchip which interconnects the first and second microchips;
switching a ground wire of the second microchip OFF with a microprocessor to select a transmit mode of the second microchip after receiving the first authentication signal, the microprocessor interconnected with the second microchip via a second bus and the ground wire; and
transmitting a first data signal from the second microchip to the first microchip over the single wire bus after switching the ground wire OFF.
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Abstract
An authentication and information system for use in a surgical stapling system includes a microprocessor configured to demultiplex data from a plurality of components in the surgical system. The authentication and information system can include one wire chips and a coupling assembly with a communication connection.
17 Citations
20 Claims
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1. A method of authenticating first and second components of a surgical system, the method comprising:
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receiving a first authentication signal of a first component from a first microchip at a second microchip over a single wire bus of the second microchip which interconnects the first and second microchips; switching a ground wire of the second microchip OFF with a microprocessor to select a transmit mode of the second microchip after receiving the first authentication signal, the microprocessor interconnected with the second microchip via a second bus and the ground wire; and transmitting a first data signal from the second microchip to the first microchip over the single wire bus after switching the ground wire OFF. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A surgical system, comprising:
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a handle assembly; an adapter assembly releaseably coupled to the handle assembly; a loading unit having a tool assembly; a loading unit chip disposed within the loading unit, the loading unit chip storing data indicative of one or more properties of the tool assembly; and a controller disposed within the handle assembly and storing a program, the controller including a microprocessor in communication with the loading unit chip over a single wire bus, the microprocessor including a ground wire and configured to switch the loading unit chip between a receive mode and a transmit mode by switching the ground wire between ON and OFF positions33. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification