JP2006149484A5

JP2006149484A5 -

Info

Publication number: JP2006149484A5
Application number: JP2004341259A
Authority: JP
Filing date: 2004-11-25
Publication date: 2007-12-06
Anticipated expiration: 2024-11-25

Claims

An intracavity probe comprising at least an insertion portion to be inserted into the body cavity and an operation portion for operating the insertion portion;
Detection means for detecting the position and orientation of the intracavity probe ;
A detecting elements constituting the detection unit operable to generate or receive a signal for detecting the position and orientation of the body cavity probe, located on the body cavity probe,
Calculating means for calculating a reference orientation of the probe in the body cavity based on a changed position or orientation of the detection element arranged in the body cavity probe;
A body cavity probe device comprising:

2. The intra-body-cavity probe apparatus according to claim 1, wherein the calculation unit calculates the reference azimuth based on the position or azimuth of the detection element changed by the curvature of the intra-body-cavity probe itself.

The detection means detects the position or the orientation before and after the change of the position or orientation of the detection element arranged in the body cavity probe,
The intracorporeal probe apparatus according to claim 1, wherein the calculation unit calculates the reference azimuth from both the position or azimuth before and after the change detected by the detection unit .

The intracorporeal probe is an ultrasonic probe provided with ultrasonic transmission / reception means, and generates an ultrasonic image from an ultrasonic signal obtained by transmitting / receiving ultrasonic waves from the ultrasonic transmission / reception means. Creating means, wherein the detection means detects the position and orientation of the ultrasonic image, and the detection element is disposed in the vicinity of the ultrasonic transmission / reception means in the ultrasonic probe, 2. The body cavity probe according to claim 1, wherein an azimuth is detected, and the calculation means calculates a reference azimuth based on a changed position or azimuth of the detection element provided in the ultrasonic probe. apparatus.

It said calculation means according to claim 4, characterized in that calculating the reference direction of the ultrasonic transmitter means against relative altered the position or the ultrasound images based on the orientation of the detection element The intra-body-cavity probe apparatus described in 1.

The detection means includes a transmission coil that generates a magnetic field, and a reception coil that detects a magnetic field generated by the transmission coil,
2. The intra-body-cavity probe device according to claim 1, wherein either the transmission coil or the reception coil is disposed at the distal end portion to form the detection element.

The body cavity probe device according to claim 6, wherein an axis of a winding of the transmission coil or the reception coil arranged in the body cavity probe is a single axis .

A position detection probe provided with either the transmission coil or the reception coil;
The position detection probe is inserted into a tubular channel provided in the body cavity probe so as to communicate with the distal end portion, and either the transmission coil or the reception coil is disposed on the body cavity probe. The intra-body-cavity probe device according to claim 6.

9. The body cavity probe device according to claim 8, wherein either one of the transmission coil or the reception coil provided in the position detection probe is composed of a plurality of single-axis coils .

The in-vivo probe device according to claim 9, wherein the plurality of single-axis coils are sequentially provided along a longitudinal direction of the position detection probe .

Either one of the transmitting coil or receiving coil provided in the position detection probes claims, characterized in that a coil that constitutes the coil uniaxial wound in different directions of the axis of the winding together The intra-body-cavity probe device according to claim 8.

The channel has an opening that opens at the tip,
The ultrasonic probe is provided with an elevator that rotates at a specific point at the opening of the channel.
The intra-body-cavity probe device according to claim 8, wherein either one of the transmission coil or the reception coil provided in the position detection probe is changed in position or orientation by the raising base .

3D image creation means for creating a 3D image based on the ultrasound image created by the ultrasound image creation means and the position and orientation of the ultrasound image detected by the detection means;
5. The intra-body-cavity probe according to claim 4, wherein the three-dimensional image creating unit further creates the three-dimensional image based on a reference orientation of the ultrasonic image calculated by the calculating unit .

Guide image creation means for creating a guide image of the ultrasound image created by the ultrasound image creation means based on the position and orientation of the ultrasound image detected by the detection means,
The intra-body-cavity probe apparatus according to claim 4, wherein the guide image creating unit corrects the image based on a reference orientation of the ultrasonic image calculated by the calculating unit.