Coaxial needle and severing snare

Details Coaxial needle and severing snare Coaxial needle and severing snare

1998-02-18

1999-10-05

Smith, Jeffrey A.

Surgery

Instruments

Means for removing tonsils, adenoids or polyps

A61B 1724

Patent

active

059615265

ABSTRACT:
A device for treating a lesion comprises a sheath extending from a proximal end which, in an operative position, is located outside the body, to a distal end which, in the operative position is located within the body. A needle extending through the sheath has a tissue piercing distal tip and a central lumen extending through the needle from a proximal port to a distal opening formed in the distal tip and a needle actuator is provided for moving the needle between a retracted position in which the distal tip is received within the sheath to an injection position in which the distal tip extends distally beyond a distal end of the sheath. A snare extends within the lumen to a loop formed in a distal end of the snare and a snare actuator is provided for moving the snare between a covered position in which the loop is received within the lumen and an extended position in which the loop extends distally from the lumen beyond the distal tip.

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