JPS58157461A - Manual guide type ultrasonic probe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises an ultrasound head held on a guide arm, the guide arm being a 4i iN! The present invention relates to a manually guided ultrasonic probe that extends diagonally upward relative to the object.

The ultrasonic probes in this building are often used for ultrasonic diagnosis in the medical field, and in this case particularly for displaying ultrasonic tomographic images of certain biological parts, especially biological organs. However, such manually guided ultrasound transducers can also be used for material inspection. This also applies if the transducer is to be used at the same time, for example, for biopsies, since in such cases it is generally necessary to have good movement of the ultrasound head, but it is difficult to This is because it is very important to be able to accurately fix the ultrasonic head at the target position.However,
This does not only apply to the biopsy arrays described above. Stable manual guidance is also necessary when an examining doctor wants to examine a biological cross-section that is particularly important for diagnosis in detail over a long period of time using a display device. In this case, the doctor must keep his hand as still as possible to prevent the ultrasound head from shaking at the probed location and causing the ultrasound beam to deviate from the relevant section.

Manually guided ultrasound probes in which the ultrasound head is a mechanical sector scanner are used, such as the Siemens-Pro
speckt ”Oomputertechnik in
der Sono-graphie: der n
eue Siemens RA-1” +Be5te
], 1-Nr, M-E 450/1791 J and [Siemens-DATA-Blatt E450
'Sonogr-aphieystem RA-1
', Be5tell-Nr, M-Fi450/20
5-. The front photo of the former document shows one with a handle on the L side. The doctor conducting the examination grasps the ultrasound head from above by passing the handle through the support that rests on the back of the hand.

The latter document shows another ultrasonic head for /stem RA-1, which ultrasonic head probe (&i
IrC has guide arms running approximately parallel to each other.

The ultrasound head is held in the probing position by the physician's hand grasping the guide arm with the palm facing up and the fingers facing down.

Furthermore, it is also possible to use an ultrasonic comb transducer (so-called ultrasonic array) as an ultrasonic probe. This ultrasonic array is, for example, JSi6mθns -DATA-Hlatt E
441', BONOLINE 8000'.

Beutell, -N! -,M-E 441/
, 1970J/C. The ultrasound array of this wing can also be used for biopsies if it is equipped with a guide groove or guide hole for the puncture cannula. Such live horizontal arrays are known, for example, from US Pat. No. 4,029,084, DE 2906474 or DE 2942405. A similar ultrasound array with fully open lateral grooves is Gθne
ral) From Clectric: 1.5 M
It is sold under the name Hz Biopsy Transducer'. All of these known biopsy arrays are of the palm-up grip format.

It is easy to understand that in the case of these known ultrasound biopsy arrays, the careful manual guidance that is originally required for biopsy (i.e. when inserting the puncture cannula into the tissue) is not inherently possible. can do.

On the other hand, US Pat. No. 4,108,165 shows an embodiment in which some improvements have been made in this sense. This is of course not a biopsy array, but a simple biopsy combination ultrasound head with only one central guide hole for the puncture cannula.

This composite ultrasonic head is similar to the manually guided ultrasonic probe as defined in the first part of the specification to which the present invention is directed. Therefore, this composite ultrasound head is held by a guide arm, which extends northward at a slight angle with respect to the probe surface of the ultrasound head. This type of composite head is generally mounted on a holder. The ultrasound head is guided at the probe point in such a way that the ultrasound head itself or the guide arm is placed between the fingers of the hand so that the ultrasound head is moved by the hand over the surface to be examined 1-. The compound described in US Pat. No. 41,8165 is particularly used for modeling organs within the thorax of the human body. In this case, the actual ultrasonic head can be pressed between two adjacent ribs, and the rest of the ultrasonic head extends upwardly, according to the US Patent Specification, column 4, lines 5-9. Ultrasonic radiation is ensured by ensuring that the Rad arm lies high on the ribs.

The purpose of the present invention is to further develop this type of ultrasonic probe as follows, that is, to make it applicable to many arbitrary types of inspection points as a manually guided ultrasonic probe. The goal is to

The present invention allows the ultrasonic head of the probe to be manually rotated to any tilted position, and furthermore, it can be immediately and easily brought to a stable stationary position in any of these tilted positions. I am trying to make it possible.

According to the present invention, the guide arm serves as a gripping part for grasping with one hand with the back of the hand facing downward, so that at least the corner of the hand opposite to the thumb forms a tripod base in addition to the ultrasound probe surface. This is achieved by forming an auxiliary support for the ultrasound head at the probe point.

With the lower hand corner as another fulcrum, the present invention allows the ultrasonic head of the transducer to be arbitrarily swiveled diagonally and brought to a stable resting position instantly and easily in any tilted state. make it possible. Therefore, the present invention can be very effectively applied to the ultrasonic probe r- for ultrasonic biopsy.

After turning the ultrasound beam a predetermined number of times, insert the puncture cannula.
l wIf the direction of the ultrasound beam to be inserted into the target point cannot be found, the biopsy probe will move between the ultrasound head probe surface as the first fulcrum and one hand as the second fulcrum. It is held in a stable resting position by the corner.

Then, under ultrasound supervision, the puncture cannula can be inserted with the other hand in the direction of the ultrasound line.

The biopsy ultrasound head can have any shape.

In a preferred embodiment of the invention, the ultrasound biopsy head is an ultrasound array with a slit-shaped guide groove. In this case, the guide groove is cut from the side of the ultrasonic array opposite to the side that transitions to the guide arm to about the center of the array. The rear wall of the guide channel is at about the height of the rows of transducer elements of the array at the probe surface of the ultrasound head. The V-piercing cannula, which is guided against this rear wall during insertion, is therefore always in the ultrasonic scanning plane during the lancing process. Therefore, the direction and depth of the puncture cannula can always be clearly confirmed using real-time ultrasonic images.

Hereinafter, one embodiment of the present invention will be described in more detail with reference to the drawings.

In FIG. 1, the ultrasound head is an ultrasound biopsy array 1. The biopsy array 1 consists of at least one row of ultrasound transducing elements 2 arranged in a conventional manner, the transducing elements 2 being subdivided. However, many subdivision elements 2 are electrically grouped together.

Each group consists of, for example, eight subdivision elements.

The basic principle of subdivision is US Pat. No. 4,805,014 (
(corresponding to Tokuyoi No. 55-11696).

The row of conversion elements 2 is followed by a conventional probe layer 3, which is at the same time a sterile protective layer, with which the ultrasound array is, for example, completely covered. In that case, this layer consists of a p-quizyrole-based polymer and 9 parts polyvaraxylene, which is deposited over the entire surface of the ultrasound array.

1 indicates a servant-like guide groove for the puncture cannula; t0 guide groove 4 is on the side of the gripping part 8 which is the mounting surface of the reservoir; + (
on the longitudinal side 5 of the biopsy array opposite f. The patterned guide groove 4 has an opening angle of approximately β=14°. A guide groove 41d is cut from the longitudinal side 5 of the array to approximately the center of the array, which is indicated by the dashed line 7 in FIG. That is, the rear of the guide is located approximately at the center of the row of ultrasonic transducing elements 2. If the puncture cannula is inserted along this posterior direction, the advantages described above can be obtained.

Adjacent to the gripping part 8 of the enamel array is a handle part 9, which can be fitted with a fuze (not shown) if necessary. This fuze is used as an extension of the grip, and is used as an extension of the ultrasonic probe f: for example, when attempting to insert the ultrasound probe into difficult-to-access parts of the living body, especially the recesses of the living body (particularly when attempting to access the abdominal cavity or thoracic cavity during surgery). A cable stub 10 for a probe connection cable 11 follows the handle 9, in which the individual signal connection lines for the conversion elements 2 of the array are accommodated. The signal connection lines run approximately in a fan-shape to the individual conversion element groups within the array.

This is illustrated in FIG. 2 by the conductor 12 shown in broken lines.

According to the present invention, the gripping part 8 for grasping with one hand, for example, the left hand 13 with the back of the hand facing downward, has at least the corner of the hand opposite to the thumb 14 at the probe point (biological surface 16).
) is formed to serve as an auxiliary support in addition to the ultrasonic head probe surface 17 in the form of a tripod stand (see FIG. 3). In this case, the gripping part 8 has a constriction 18 shaped so that it fits well into the curve between the thumb and the index finger. For this purpose, the gripping part 8 with the constriction 18 forms, in particular, a curved extension of the ultrasound array 1.

This curved extension is approximately α=6 in the lower array range.
Continuing to the 0° slope.

As shown in FIG. 3, for ultrasonic scanning, the medical examiner grasps and holds the grip 8 with his left hand 13, for example, with the back of his hand facing downward. The ultrasound head is pivoted in the direction of the double arrow 19 with the heel 15 of the hand 14 above the biological surface 16 . At the same time, the doctor observes the ultrasonic real-time section II IJ'&- generated at the inclined position of the array 1. If the condition inside the internal organ of the living body from which a sample for biopsy is to be taken can be observed well from one of these cutting gaps, the doctor should move the ultrasound head to the second fulcrum in the direction of this cross section. Keep the hand still by the corner of the hand. Then, by means of the right hand 20, the puncture cannula 1-21 is inserted in the manner already described through the guide groove 4 of the ultrasound array 1, and the tip of the puncture cannula 21 is inserted into the tissue or body organ to be removed, for example. It is made to reach full r. Canniule stabbing.

Similarly, as already mentioned, this is carried out under the supervision of an echo tomographic image. Ultrasound image 1 after insertion of cannula 21! '7-
can be removed from the needle by pulling it laterally. This resulted in the original biopsy being performed.

In other words, the tissue can be extracted from the desired location.

The embodiment described above is a probe with a biopsy array as the ultrasound head. Of course, within the scope of the invention it is also possible to use probes of other configurations, for example probes with a compound head, an A-scan head or a Doppler head as the ultrasound head, and these ultrasound heads also is also a biopsy ultrasound head or a simple ultrasound head without cannula guidance.

[Brief explanation of the drawing]

Fig. 1 is a principle configuration diagram showing the ultrasonic probe according to the present invention, including a partially cutaway cross section, and Fig. 2 is a front view showing the ultrasonic probe of Fig. 1, including a partially cutaway cross section. 3 are schematic diagrams showing an example of application of the ultrasound probe according to the present invention as a biopsy probe to the human body. ■...Ultrasonic biopsy array, 2...Ultrasonic conversion element, 3...Probing layer, 4...East facing groove, 8...
Grip part. 9... Handle, 10... Cable short tube, 11... Probe contact hl: cable, 15... Hand corner, 16...
...Testing location. 17... Ultrasonic head probe surface, 18... Waist, 2
1. Puncture cannula.

Claims (1)

[Claims] 1) A manually guided ultrasonic device comprising an ultrasonic head (1) held by a guide arm, the guide arm extending obliquely upward with respect to the probe surface of the ultrasonic head. In the sonic probe, the guide arm serves as a grip part (8) for grasping with one hand (13) with the back of the hand facing downward, and at least the corner (15) of the hand opposite to the thumb is attached to the ultrasound head probe. A manually guided ultrasonic probe characterized in that it is formed in a tripod shape in addition to a surface to serve as an auxiliary support for an ultrasonic head at a probe station (16). 2) The ultrasonic probe according to claim 1, characterized in that the gripping part (8) has a constriction (18) shaped to fit well within the inner curvature between the thumb and the index finger. Tentacles. 3) The grip part (8) and the constriction (18) receive ultrasonic waves.
The ultrasonic probe according to claim 2, characterized in that it forms a curved extension of the throat (1). 1) The ultrasonic probe according to claim 3 nL, characterized in that the curved extension part is connected to the sushi part at approximately α=60° in the lower ultrasonic head range VC. . 5) The ultrasonic probe according to claim 1, jjL, characterized in that the handle part (8) is followed by a handle part (9) on which a fuze can be placed when necessary. . 6) The ultrasonic probe according to claim 5, characterized in that a short cable length (10) for connecting the probe connecting cable (11) continues above the handle (9). Child. 7) The ultrasonic probe according to any one of claims 1 to 6, wherein the ultrasonic head (1) is an ultrasonic head for biopsy. 8) The ultrasound biopsy head (1) is an ultrasound array with a guide groove (4) for a biopsy puncture cannula (21). Ultrasonic probe. 9) The ultrasonic probe according to claim 8, wherein the guide groove (4) is wedge-shaped. 10) The guide groove (4) is located on the side (
10. The ultrasonic probe according to claim 8 or 9, wherein the ultrasonic probe is cut from the side surface (5) of the ultrasonic array opposite to the ultrasonic probe 6) to approximately the center of the array. 11) The ultrasonic device according to any one of claims 8 to 10, characterized in that the gripping portion (8) is attached to approximately the center of the side surface (6) of the ultrasonic array. probe. 12) The signal connection edge (12) is connected to the probe connection cable (11).
), through the gripping part (8), inside the array (1) in a fan-like manner towards the conversion element (2) of the array. The ultrasonic probe according to any of the above.