Controller and sterilizable head for a device for heating clips with shape memory
DCFirst Claim
1. A device for heating and closing heat-retractable shape memory clamps used in surgery applications, wherein the device includes a unit containing an electronic power and control circuit supplied with line current which is coupled with a heating unit, wherein the electronic power and control circuit comprises a current supplying circuit, a system controller, an adjustment circuit, and an automatic cut-out circuit coupled to said adjustment circuit, and wherein the electronic power and control circuit operates to deliver one of a plurality of different and predetermined quantities of heat corresponding to a different and predetermined configuration for the clamps.
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Abstract
A device for heating and closing heat-retractable clamps for surgical use includes a housing which encloses an electronic power and control circuit, a power cord connected to the circuit, and a heating unit for applying heat to the clamps. The electronic power and control circuit includes a power supply, a controller and a regulating circuit for delivering different predetermined amounts of heat, each corresponding to a clamp of a given size. The heating unit is capable of being sterilized in an autoclave and includes a linking cord, one end of which is capable of being plugged into the housing for the electronic circuit and the other end of which is coupled with a sleeve having a pair of electrodes and a control switch for operating the electrodes.
35 Citations
23 Claims
- 1. A device for heating and closing heat-retractable shape memory clamps used in surgery applications, wherein the device includes a unit containing an electronic power and control circuit supplied with line current which is coupled with a heating unit, wherein the electronic power and control circuit comprises a current supplying circuit, a system controller, an adjustment circuit, and an automatic cut-out circuit coupled to said adjustment circuit, and wherein the electronic power and control circuit operates to deliver one of a plurality of different and predetermined quantities of heat corresponding to a different and predetermined configuration for the clamps.
- 13. A device for heating and closing heat-retractable shape memory clamps used in surgery applications, wherein the device includes an electronic power and control circuit supplied with line current which is coupled with a heating unit, wherein the electronic power and control circuit comprises a current supplying circuit, a system controller, an adjustment circuit, and an automatic cut-out circuit coupled to said adjustment circuit, and wherein the electronic power and control circuit operates to deliver one of a plurality of different and predetermined quantities of heat corresponding to a different and predetermined configuration for the clamps.
Specification