Detection circuitry for surgical handpiece system
First Claim
1. A sensing circuit for a switch end cap of a hand piece, comprising:
- a plurality of switches connected in parallel;
a plurality of diodes respectively connected in series to each of the plurality of switches, wherein the plurality diodes are connected to each other in reverse polarities;
a plurality of conducting members connected to the plurality of diodes and the plurality of switches, wherein each of the plurality of conducting members respectively communicate with a plurality of corresponding conductive members of the switch end cap;
a transorb connected in parallel with the plurality of conducting members, wherein the transorb comprises zener diodes connected in a back-to-back configuration; and
wherein the circuit detects a presence of excessive debris associated with the handpiece.
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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 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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Citations
13 Claims
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1. A sensing circuit for a switch end cap of a hand piece, comprising:
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a plurality of switches connected in parallel;
a plurality of diodes respectively connected in series to each of the plurality of switches, wherein the plurality diodes are connected to each other in reverse polarities;
a plurality of conducting members connected to the plurality of diodes and the plurality of switches, wherein each of the plurality of conducting members respectively communicate with a plurality of corresponding conductive members of the switch end cap;
a transorb connected in parallel with the plurality of conducting members, wherein the transorb comprises zener diodes connected in a back-to-back configuration; and
wherein the circuit detects a presence of excessive debris associated with the handpiece. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification