摘要:
Systems, methods, and devices for delivering ablation fluid to a location of interest within a body (e.g., a location with the lung) are described herein. Ablation fluid delivery systems and devices can include flexible delivery needles within which a plurality of smaller flexible needles is housed. The smaller flexible needles can be configured to articulate or bend with respect to the flexible delivery needle to increase an effective delivery area for the ablation fluid. The smaller flexible needles can include apertures or other openings to facilitate delivery of the ablation fluid to the location of interest.
摘要:
Embodiments disclosed herein are directed to devices, methods, and systems for the treatment of tissue using energy delivery. Specifically, certain embodiments may utilize a thermochemical reaction between at least two reagents where a first reagent has been preloaded into a catheter while a limiting reagent is circulated through the catheter to react with the first reagent. The resulting chemical reaction may be exothermic or endothermic, and a heat transfer fluid may be used to exchange energy between the chemical reaction and surrounding tissue.
摘要:
A medical device system for the delivery of energy to a region of a patient's anatomy is provided. An introducer tube defines a lumen therein and bears a first electrode. A second electrode is movable within the lumen between a retracted position and an extended position. In the retracted position, the second electrode is substantially disposed within the lumen. In the extended position, the second electrode extends at least partially beyond the distal end of the introducer tube. In one form, the introducer tube is configured to substantially hold the second electrode within the lumen in a predetermined orientation in the extended position, and the introducer tube prevents the second electrode from substantially rotating within the lumen of the introducer tube during movement into the extended position. In one form, the introducer tube is more flexible in a first plane than in a second plane. A method is also provided.
摘要:
A medical device system for the delivery of energy to a region of a patient's anatomy is provided. An introducer tube defines a lumen therein and bears a first electrode. A second electrode is movable within the lumen between a retracted position and an extended position. In the retracted position, the second electrode is substantially disposed within the lumen. In the extended position, the second electrode extends at least partially beyond the distal end of the introducer tube. In one form, the introducer tube is configured to substantially hold the second electrode within the lumen in a predetermined orientation in the extended position, and the introducer tube prevents the second electrode from substantially rotating within the lumen of the introducer tube during movement into the extended position. In one form, the introducer tube is more flexible in a first plane than in a second plane. A method is also provided.
摘要:
Systems, methods, and devices for delivering ablation fluid to a location of interest within a body (e.g., a location with the lung) are described herein. Ablation fluid delivery systems and devices can include flexible delivery needles within which a plurality of smaller flexible needles is housed. The smaller flexible needles can be configured to articulate or bend with respect to the flexible delivery needle to increase an effective delivery area for the ablation fluid. The smaller flexible needles can include apertures or other openings to facilitate delivery of the ablation fluid to the location of interest.
摘要:
Embodiments disclosed herein are directed to devices, methods, and systems for the treatment of tissue using energy delivery. Specifically, certain embodiments may be used for the treatment of lung tissue, such as lung nodules, using RF ablation, via a catheter (101) provided with a first electrode (103) attached to a distal end of the catheter, wherein the first electrode is hollow, wherein the first electrode comprises a piercing tip configured to pierce through an airway wall and a second electrode (105) received in a movable manner within the first electrode, wherein the second electrode is extendable from the first electrode to form a first extended configuration.
摘要:
Embodiments disclosed herein are directed to devices, methods, and systems for the treatment of tissue using energy delivery. Specifically, certain embodiments may utilize a thermochemical reaction between at least two reagents where a first reagent has been preloaded into a catheter while a limiting reagent is circulated through the catheter to react with the first reagent. The resulting chemical reaction may be exothermic or endothermic, and a heat transfer fluid may be used to exchange energy between the chemical reaction and surrounding tissue.