Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means
Reexamination Certificate
2005-12-20
2005-12-20
Yan, Ren (Department: 2854)
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With coupling means
C606S169000, C606S042000
Reexamination Certificate
active
06977495
ABSTRACT:
Various circuit configurations for use in switch assembly used in a surgical hand piece system are provided. The circuit configuration provide a number of functions such as permitting the presence and direction of conductivity to be detected. The circuit configurations also provide a means for detecting and measuring the degree of influence of debris which is located between the conductive members of the handpiece. In addition, the circuit configurations also provide a means for identifying the type of switch end cap which is attached to the handpiece. The handpiece body and the switch mechanism are electrically connected to one another in such a manner that permits the switch end cap to be freely rotated about the handpiece body and reduces the number of conductive members needed to communicate the status of each switch.
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European Search Report dated Nov. 20, 2003.
Ethicon Endo-Surgery Inc.
Hamdan Wasseem H.
Kreger Verne
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