Patent ID: 11896287
Assignee: BOSTON SCIENTIFIC SCIMED, INC.
Field: Medical technology (Instruments)
Classification: CPC A  F  H | IPC A  F  H

Claim 8:
9. A prostate treatment device, comprising:
an introducer shaft;
a vapor generator configured to generate a condensable vapor;
a vapor delivery needle in communication with the vapor generator and slidably disposed within the introducer shaft a magnet attached to the needle; and
an actuator configured to selectively simultaneously apply to the magnet a first, repelling, force in a first direction and a second, attracting force in the first direction in order to move a distal tip of the vapor delivery needle between a retracted position inside the introducer shaft and an extended position at least partially outside of the introducer shaft, wherein the actuator includes a second magnet configured to generate a first magnetic field having a first polarity and a third magnet configured to generate a second magnetic field having a second polarity, and wherein the first polarity is opposite to the second polarity.