Method and apparatus for cryogenically treating le

专利名称：Method and apparatus for cryogenically

treating lesions on biological tissue

发明人：R. Sam Niedbala,Alexander Volkov申请号：US11476901申请日：20060629

公开号：US20070005048A1公开日：20070104

专利附图：

摘要：The invention relates to a method, a cryosurgical probe, and a cryosurgicalinstrument for freezing a lesion on biological tissue. The method involves repeatedcycles of freezing and thawing of the tissue to ensure maximum treatment effectiveness.

The cryosurgical probe may be positioned on an end of a cryosurgical instrument, andfacilitates the freezing of a lesion on biological tissue via the evaporation of a refrigerant.The cryosurgical probe includes a receiving end, a hollow portion, and a tissue contactend. The receiving end is adapted to receive the refrigerant. The tissue contact endincludes an orifice adapted to expose the lesion to the refrigerant, and preferablyincludes a guard portion adapted to prevent excessive exposure of the biological tissuesurrounding the lesion to the refrigerant. The hollow portion allows the flow ofrefrigerant from the receiving end to the tissue contact end, and includes at least oneexhaust port.

申请人：R. Sam Niedbala,Alexander Volkov

地址：Allentown PA US,Allentown PA US

国籍：US,US

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