Methods and apparatus for coagulating and/or constricting hollow anatomical structures
First Claim
Patent Images
1. A method of treating a perforator vein comprising:
- achieving direct percutaneous access into tissue with a rigid stylet having a resistive heating coil forming a portion of an exterior surface of the stylet, and a sharp tip, the resistive heating coil being covered by an electrically insulative sleeve;
advancing the stylet below a fascial layer and to a portion of the perforator vein below the fascial layer, the fascial layer comprising deep fascia through which the perforator vein passes to connect a superficial vein with a deep vein; and
occluding the perforator vein by applying energy from the resistive heating coil to the portion of the perforator vein below the fascial layer.
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Accused Products
Abstract
An energy delivering probe is used for thermally coagulating and/or constricting hollow anatomical structures (HAS) including, but not limited to, blood vessels such as perforator veins. The probe includes a shaft and an energy source.
140 Citations
15 Claims
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1. A method of treating a perforator vein comprising:
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achieving direct percutaneous access into tissue with a rigid stylet having a resistive heating coil forming a portion of an exterior surface of the stylet, and a sharp tip, the resistive heating coil being covered by an electrically insulative sleeve; advancing the stylet below a fascial layer and to a portion of the perforator vein below the fascial layer, the fascial layer comprising deep fascia through which the perforator vein passes to connect a superficial vein with a deep vein; and occluding the perforator vein by applying energy from the resistive heating coil to the portion of the perforator vein below the fascial layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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directly accessing a target site with a rigid probe through the skin, the target site being within or near a perforator vein, the rigid probe comprising; a tapered resistive heating coil on an outside surface of and near a distal end of the probe; a nonconductive sleeve on an outside surface of the resistive heating coil; and a sharp tip at the distal end of the probe and configured to penetrate tissue; retracting the sharp tip within the probe; after retracting the sharp tip within the probe, applying heat energy from the resistive heating coil to the perforator vein with the probe; and constricting a region of the perforator vein. - View Dependent Claims (11, 12, 13)
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14. A method comprising:
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achieving direct access with a rigid probe through the skin to a target site within or near a perforator vein, the rigid probe comprising; a sharp tip at a distal end of the probe and configured to penetrate tissue; and a resistive heating coil proximal of the sharp tip, the resistive heating coil being covered by an electrically insulative sleeve; retracting the sharp tip within the probe; applying energy to the perforator vein with the resistive heating coil; and constricting a region of the perforator vein; further comprising fully penetrating the perforator vein so that the sharp tip passes all the way through the perforator vein to a far side of the perforator vein, applying energy as the probe is drawn back from the far side of the perforator vein and through the perforator vein, and constricting the region of the perforator vein as the probe is withdrawn from the perforator vein. - View Dependent Claims (15)
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Specification