Detection circuitry for surgical handpiece system
First Claim
1. A sensing circuit, comprising:
- a transformer operatively coupled in parallel to a primary source;
said transformer having a primary winding and a secondary winding, and said primary source providing a drive signal to the primary winding of the transformer;
a device operatively coupled to the primary winding of the transformer for measuring current flow through the transformer;
a plurality of conducting members connected to the secondary winding of the transformer; and
a test point coupled to the primary winding of the transformer;
wherein each of the plurality of conducting members respectively communicate with conducting surfaces of a switch end cap.
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Accused Products
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 way to detect and measure the degree of influence of debris which is located between the conductive members of the handpiece. In addition, the circuit configurations also provide a way to identify 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.
342 Citations
8 Claims
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1. A sensing circuit, comprising:
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a transformer operatively coupled in parallel to a primary source;
said transformer having a primary winding and a secondary winding, and said primary source providing a drive signal to the primary winding of the transformer;
a device operatively coupled to the primary winding of the transformer for measuring current flow through the transformer;
a plurality of conducting members connected to the secondary winding of the transformer; and
a test point coupled to the primary winding of the transformer;
wherein each of the plurality of conducting members respectively communicate with conducting surfaces of a switch end cap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification