Nerve and soft tissue ablation device having release instrument

摘要

Ablation devices useful for destroying nerve and soft tissue via a minimally invasive procedure to alleviate pain are provided. The device comprises a probe comprising an interior surface that defines an internal passage and an exterior surface comprising a tip. The internal passage has a filament comprising an opening configured to release a pressurized material into the interior surface of the probe so as to cool the exterior surface of the probe to a selected temperature. A release instrument is provided comprising a sheath that comprises an exterior surface and an interior surface configured for engagement with the probe. The probe tip is configured for ablating nerve and/or soft tissue by forming an ice ball and the release instrument is configured to release the probe tip from the ice ball. Methods for ablating nerve and/or soft tissue utilizing the ablation devices are also provided.

主权项

1. An ablation device comprising: a probe comprising an interior surface defining an internal passage and an exterior surface comprising a tip, wherein the internal passage has a filament comprising an opening configured to release a pressurized material into the interior surface of the probe so as to cool the exterior surface of the probe to a selected temperature; and a release instrument comprising a sheath, wherein the sheath comprises an exterior surface, and an interior surface configured for engagement with the probe, wherein the probe tip is configured for ablating nerve and/or soft tissue by forming an ice ball and the release instrument is configured to release the probe tip from the ice ball, and the release instrument translates in an axial direction relative to the probe to separate the probe tip from the ice ball.