JP2006051302A - Bar-like linear ultrasonic search unit for transfixing blood vessel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem wherein transfixing is difficult depending on the position and travel of a blood vessel although transfixing is performed while describing a major axis image of a target blood vessel conventionally using a general-purpose linear ultrasonic search unit when transfixing the blood vessel in the body under an ultrasonic image guide. <P>SOLUTION: This bar-like linear ultrasonic search unit has a groove of semicircular cross section disposed at the center part of a side face vertically to an ultrasonic transmitting/receiving surface to fix a cylindrical puncture needle guide implement. While describing a minor axis image of the target blood vessel, the cylindrical puncture needle guide implement is brought into close contact with the groove at the search unit side face, and a puncture needle is advanced in the inner void part of the puncture needle guide implement. The target blood vessel can thereby be positively transfixed at an objective part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to the shape of an ultrasound probe used for medical practice.

  In a medical practice, when a tissue or organ in the body depicted on an ultrasound tomographic screen is punctured under an ultrasound image guide, a conventional linear ultrasound probe is conventionally used, and the probe as shown in FIG. Puncture is performed from the long axis direction, and a puncture guide tool suitable for this method has been devised.

  However, for the purpose of puncturing a blood vessel, according to the conventional technique, it is necessary to depict a long-axis image of the puncture target blood vessel, and the target blood vessel is meandering, or the target blood vessel is depicted only in a very narrow range. In situations where it was not possible, it was sometimes difficult to puncture the target vessel. Therefore, the present invention can easily obtain an ultrasonic image for reliably puncturing the target blood vessel at the target site, and further has an ultrasonic image guide function for allowing the puncture needle to reach the target blood vessel. It is an object to provide an acoustic probe.

In order to solve the above-described problems, the first invention provides a groove having a semicircular cross section for fixing a cylindrical puncture needle guide tool on a side surface of a rod-shaped linear probe, and an ultrasonic transmission / reception surface. It is an ultrasonic probe characterized by being provided perpendicular to.
In addition, the second invention ensures that the puncture needle is disposed by advancing the puncture needle in a state where the side groove is arranged at the center of the linear probe and the short axis image of the target blood vessel is depicted at the center of the ultrasonic screen. It is an ultrasonic probe characterized by being able to guide to the target blood vessel.

  According to the first invention or the second invention, the target blood vessel can be reliably punctured at the target location.

One embodiment of the present invention is shown in FIG.
A groove having a semicircular cross section for fixing the cylindrical puncture needle guide device is provided perpendicularly to the ultrasonic wave transmitting / receiving surface in the central portion of the side surface of the rod-shaped linear probe. The groove is provided with a slight inclination so as to intersect with the central portion of the ultrasonic layer at a depth of about 2-3 cm subcutaneously. A cylindrical puncture needle guide tool 3 shown in FIG. 1 is used in close contact with the groove.

"Effect of embodiment"
According to this embodiment, the cylindrical puncture needle guide device 3 shown in FIG. 1 is manually brought into close contact with the side groove as shown in FIG. 2, and the target blood vessel is located at the center of the ultrasonic screen. When the needle is advanced along the lumen of the puncture needle guide tool while the short axis image is drawn, the target blood vessel can be reliably reached. After the puncture, the puncture needle guide tool and the probe can be easily separated, so that it is possible to concentrate on the treatment of the puncture needle. It is possible to adapt to various puncture needles by changing the lumen diameter of the cylindrical puncture needle guide device.

"Other embodiments"
In the embodiment of FIG. 1, the groove for fixing the puncture needle guide tool is provided only on one side surface, but in other embodiments, a similar groove may be provided on the opposite surface. In addition, a groove is provided at an arbitrary position on the side surface by displaying on the ultrasonic screen a linear guide indicating the extension line of the groove position, that is, the advancing direction of the puncture needle, by processing the ultrasonic screen. But it ’s okay.

It is a perspective view showing one embodiment of this invention. A cylindrical puncture needle guide tool is closely attached to the groove on the side of the probe, and when the needle is advanced along the lumen of the puncture needle guide tool while the short axis image of the target blood vessel is drawn in the center of the ultrasound screen, It is a figure which shows reaching a target blood vessel. It is a figure which shows a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rod-shaped linear type ultrasonic probe which has a semicircle groove | channel on the side surface 2 Ultrasonic wave transmission / reception surface 3 Cylindrical puncture needle guide tool 4 Code 5 Puncture needle 6 Target blood vessel short axis image 7 General-purpose linear type probe 8 General-purpose Puncture needle guide tool for linear probe 9 Target vessel long axis image

Claims (2)

A bar-shaped linear ultrasonic probe for blood vessel puncture, characterized in that a groove having a semicircular cross section is provided on the side surface to fix the cylindrical puncture needle guide device perpendicular to the ultrasonic wave transmitting / receiving surface. Child. The groove for fixing the puncture needle guide tool is disposed at the center of the linear ultrasonic probe, and is used for puncturing while drawing a short axis image of the target blood vessel at the center of the ultrasonic screen. An ultrasonic probe.

Images