Puncture adapter and an ultrasonic probe, and the method of using the same
View Patent ↗A puncture adapter is provided for being mounted on an ultrasonic probe. The ultrasonic probe to be mounted comprises a rod-like insertion portion that is insertable into a subject and has a search unit for transmitting and receiving ultrasonic waves at the tip end of the insertion portion, and in which a guide channel for guiding a puncture needle is formed on a side surface of the insertion portion. This puncture adapter has a first tubular component on which a gap is provided on a side surface along the length direction, which gap is from one end to the other side of the side surface. The first tubular component is mounted so as to contact the outside of the insertion portion and cover the guide channel, and is turnable in the circumferential direction thereof.
1. An ultrasonic probe including an ultrasonic probe body and a puncture adapter, wherein
the ultrasonic probe body comprises a rod shaped insertion portion insertable into a subject and a search unit for transmitting and receiving ultrasonic waves at a tip end of the insertion portion, and a guide channel for guiding a puncture needle being formed on a side surface of the insertion portion, and
the puncture adapter comprises a first tubular component on which a gap is provided on a side surface thereof along a length direction, the gap extending from one end to an other end of the side surface, the first tubular component being mounted so as to contact an outside of the insertion portion and cover the guide channel, and being turnable in the circumferential direction thereof,
wherein the first tubular component is a C-shaped structure which forms a C-shaped figure at the one end and the other end in a circumferential direction of the ultrasonic probe, and
wherein the C-shaped structure covers the guide channel and the gap releases the guide channel when the puncture adapter is mounted on the ultrasonic probe.
2. The ultrasonic probe according to claim 1 , wherein
a width of the gap is at least wider than the guide channel, and
the first tubular component detaches the puncture needle from the guide channel when the guide channel is placed into the gap by turning in the circumferential direction of the ultrasonic probe, and confines the puncture needle within the guide channel when the guide channels from the gap.
3. The ultrasonic probe according to claim 1 , wherein a length from the one end to the other end of the first tubular component varies in the circumferential direction thereof.
4. The ultrasonic probe according to claim 1 , wherein, when the first tubular component is mounted on the insertion portion, the diameter of a cross-section of the puncture adapter becomes larger toward a backside of the insertion portion.
5. The ultrasonic probe according to claim 1 , wherein the first tubular component includes a plurality of cutouts, corrugated shapes or holes, or a protrusion along the circumferential direction thereof.
6. The ultrasonic probe according to claim 1 , wherein the first tubular component consists of includes materials having springy characteristics.
7. The ultrasonic probe according to claim 1 , wherein
the puncture adapter is coupled with the first tubular component and further comprises a second tubular component having an opening, a cross-section of the opening being substantially circular, and
the second tubular component contacts the outside of the insertion portion and is turnably mounted in the circumferential direction thereof along with the first tubular component.
8. A method for mounting a puncture adapter on an ultrasonic probe, the puncture adapter comprising a tubular component on which a gap is provided along a length direction thereof, the gap extending from one end to an other end of the tubular component, the ultrasonic probe comprising a rod shape insertion portion insertable into a subject and a search unit for transmitting and receiving ultrasonic waves at a tip end of the insertion portion, the ultrasonic probe in which a guide channel for guiding a puncture needle is formed on a side surface of the insertion portion, the method comprising:
embedding the puncture adapter on an outside of the insertion portion from the gap of the tubular component,
turning in the circumferential direction of the insertion portion to shift positions of the gap and the guide channel so as to cover the guide channel,
allowing the puncture needle to pass through from the guide channel covered with the tubular component, and
turning in the circumferential direction of the insertion portion after the puncture needle reaches a target area, to match the gap and the guide channel so that the puncture needle is detached from the guide channel,
wherein the tubular component is a C-shaped structure which forms a C-shaped figure at the one end and the other end in a circumferential direction of the ultrasonic probe, and
wherein the C-shaped structure covers the guide channel and the gap releases the guide channel when the puncture adapter is mounted on the ultrasonic probe.