GB1313329A - Cauterizing apparatus - Google Patents

Abstract

1313329 Cauteries CODMAN & SHURTLEFF INC 13 Nov 1970 [17 Nov 1969] 54142/ 70 Heading A5R A cauterizing apparatus for use with a source of electricity comprises a handle 10; a wire tip at one end of the handle; a first switch S2 connected to the wire tip; a second switch S3; and an electrical circuit controlled by the second switch, said circuit including control means in circuit with the wire tip to control the electricity supply thereto, and timing means to provide an output for a predetermined period of time after the second switch S3 is closed; the control means having a first state supplying electricity at a first voltage to place the tip at a cauterizing temperature and a second state supplying electricity to the tip at a second higher voltage to place the tip at a higher cleaning temperature and the control means being normally in the first state and being in the second state under the control of the output from the timing means to maintain the tip at the cleaning temperature for only the predetermined period of time. The switch S2 is manually-operated and the switch S3 is a mercury switch which is activated by elevating the handle 10 with the tip above the horizontal position. A variable resistor is included in the electrical circuitry, Figure 1 (not shown), to control the current flowing to the tip and therefore the temperature of the tip. In an alternative embodiment, Figure 3 (not shown), the mercury switch is replaced by a second manually-operated switch (S3').