초록 ▼

Method and means are disclosed for preventing tissue from adhering to surgical apparatus while operating at tissue temperatures at which hemostasis with minimal tissue damage occurs, and include interposing between the surgical apparatus and the tissue being heated thereby an abherent coating which

Method and means are disclosed for preventing tissue from adhering to surgical apparatus while operating at tissue temperatures at which hemostasis with minimal tissue damage occurs, and include interposing between the surgical apparatus and the tissue being heated thereby an abherent coating which exhibits electrical insulation and thermal impedance, thickness and thermal drop thereacross within specified limits.

대표청구항 ▼

A surgical apparatus for hemostatic cutting of tissue under surgical conditions comprising a scalpel blade, means for heating the blade to a preselected temperature in the range from about 100°C. to about 500°C. for causing hemostasis of cut tissue with minimal tissue damage, the means for heating s

A surgical apparatus for hemostatic cutting of tissue under surgical conditions comprising a scalpel blade, means for heating the blade to a preselected temperature in the range from about 100°C. to about 500°C. for causing hemostasis of cut tissue with minimal tissue damage, the means for heating selectively delivering heat to those areas of the blade selectively cooled by heat transfer from the blade to the tissue thereby maintaining the blade substantially at the preselected temperature, and an electrically insulating abherent coating on the scalpel blade for contactng the tissue to be cut, thermally conducting heat flux from the blade to the tissue, and reducing the accumulation of cut tissue on the apparatus so that the tissue to be cut may be cut and heated with a temperature drop across the abherent coating not substantially exceeding about 50°C., the coating having an inner side in thermal contact with the blade or means for heating and an outer side for contacting tissue.