2 results about "Prostate hypertrophy" patented technology

To eliminate or reduce fiber burn-back, to facilitate cauterization and solidification, to obtain an excellent processing parameter, and to control formation and shapes of bubbles.SOLUTION: A laser device is configured to provide one or more laser pulses that are configured by a controller to have enough energy to form one or more steam bubbles in a liquid medium at a fiber distal delivery end. The one or more pulses are configured to perform the following with the controller: first, to form steam bubbles around a distal end of a distal end part of an endoscope and a distal delivery end of an optical fiber; second, to form second bubbles at a distal end of the first bubbles; and third, to expand the second bubbles so as to expand sufficient amount of a considerable part of the liquid medium from a space between the distal delivery end of the fiber and a target tissue when the first bubbles begin to collapse.SELECTED DRAWING: Figure 3B

To provide a sheath for retrieving an implant from a location within a body lumen or for placing the implant at the location.SOLUTION: A sheath comprises: an elongated shaft member; and a hub which is fixed to an outer surface of a proximal end portion of the elongated shaft member. The hub includes: a proximal portion in the form of a truncated cone which is configured to engage with a flared portion of the proximal end portion of the elongated shaft member; and a distal portion which is configured to engage with an outer surface of the flared portion of the proximal end portion of the elongated shaft member and be screwed to the proximal portion so as to cooperatively compress and secure the flared portion of the proximal end portion of the elongated shaft member together with the proximal portion, thereby forming a sealed connection.SELECTED DRAWING: Figure 3