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A cigarette sidestream smoke treatment material made from a sheet of non-combustible active components provides a porous structure capable of treating sidestream smoke. The treatment material, as used in combination with a cigarette, provides a low sidestream smoke emitting cigarette unit. The mater

A cigarette sidestream smoke treatment material made from a sheet of non-combustible active components provides a porous structure capable of treating sidestream smoke. The treatment material, as used in combination with a cigarette, provides a low sidestream smoke emitting cigarette unit. The material has a porosity which encourages a conventional free-burn rate of a conventional cigarette. The material may comprise a sorbent capable of sorbing components of the sidestream smoke, and an oxygen storage component which releases oxygen at free-burn rate temperatures to ensure that conventional free-burn rate is maintained and to enhance the oxidation treatment of the adsorbed non-aqueous components. Preferably, an oxidation catalyst is included in the material and most desirably the oxygen storage component may also function as the oxidation catalyst. Particularly preferred materials which perform the dual function are oxides of cerium.

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A cigarette sidestream smoke treatment material made from a sheet of non-combustible active components provides a porous structure capable of treating sidestream smoke. The treatment material, as used in combination with a cigarette, provides a low sidestream smoke emitting cigarette unit. The mater

A cigarette sidestream smoke treatment material made from a sheet of non-combustible active components provides a porous structure capable of treating sidestream smoke. The treatment material, as used in combination with a cigarette, provides a low sidestream smoke emitting cigarette unit. The material has a porosity which encourages a conventional free-burn rate of a conventional cigarette. The material may comprise a sorbent capable of sorbing components of the sidestream smoke, and an oxygen storage component which releases oxygen at free-burn rate temperatures to ensure that conventional free-burn rate is maintained and to enhance the oxidation treatment of the adsorbed non-aqueous components. Preferably, an oxidation catalyst is included in the material and most desirably the oxygen storage component may also function as the oxidation catalyst. Particularly preferred materials which perform the dual function are oxides of cerium. grees.9. A tissue localization device comprising: a wire adapted to form, upon deployment within tissue of a human patient, (a) a generally straight proximal portion and (b) a curved distal anchoring portion having a non-circular cross-section.10. The tissue localization device of claim 9 wherein said non-circular cross-section has a major axis and a minor axis and wherein the major axis is greater in length than the minor axis.11. The tissue localization device of claim 10 wherein a ratio of the major axis length to the minor axis length is at least two.12. The tissue localization device of claim 10 wherein a ratio of the major axis length to the minor axis length is at least four.13. The tissue localization device of claim 9 wherein the wire is a unitary, single-piece element.14. The tissue localization device of claim 9 wherein the wire proximal and distal portions comprise separate elements joined to one another.15. The tissue localization device of claim 9 further comprising a shoulder located at the transition between the proximal and distal portions.16. The tissue localization device of claim 9 wherein the wire distal anchoring portion, when deployed within tissue, assumes a generally curvilinear configuration extending at least 360 degrees.17. The tissue localization device of claim 9 wherein at least a portion of the wire distal anchoring portion defines an arc having a center point, said center point being substantially aligned with a longitudinal axis defined by the proximal portion.18. A tissue localization assembly comprising: a tissue localization wire deployment tube defining a deployment tube lumen,a wire stiffening tube disposable within the deployment tube lumen, said stiffening tube defining a stiffening tube lumen and comprising a wire lock, anda tissue localization wire at least partially disposable through the stiffening tube lumen, said wire adapted to form, upon deployment within tissue of a human patient, (a) a generally straight proximal portion and (b) a curved distal anchoring portion having a noncircular cross-section.19. The tissue localization assembly of claim 18 wherein the wire comprises a unitary, single-piece element.20. The tissue localization assembly of claim 18 wherein the wire proximal and distal portions comprise separate elements joined to one another.21. The tissue localization assembly of claim 18 further comprising a shoulder located at the transition between the proximal and distal portions.22. The tissue localization assembly of claim 18 wherein the wire distal anchoring portion, when deployed within tissue of a human patient, assumes a generally curvilinear configuration extending at least 360 degrees.23. The tissue localization assembly of claim 18 wherein the wire lock comprises a screw reversibly extending through a wall of the stiffening tube and into the stiffening tube lumen.24. The tissue localization assembly of claim 18 wherein the deployment tube lumen is adapted for delivering fluid to the tissue.25. The tissue localization assembly of claim 24 additionally comprising a hub having a port in fluid communication with the deployment tube lumen.26. The tissue localization assembly of claim 18 wherein at least a portion of the curved distal anchoring portion defines an arc having a center point, said center point being substantially aligned with the proximal portion longitudinal axis.27. A tissue localization assembly comprising: a tissue localization wire deployment tube defining a deployment tube lumen,a wire stiffening tube disposable within the deployment tube lumen, said stiffening tube defining a stiffening tube lumen and comprising a wire lock, anda tissue localization wire adapted to form, upon deployment within a tissue lesion,(a) a generally straight proximal portion, and(b) a curved distal anchoring portion having a noncircular cross sect