JPH08617A - Paracentetic attachment - Google Patents

Abstract

PURPOSE:To reliably guide a paracentetic needle to a paracentetic position, and easily fix an attachment by forming guide holes arranged in the attachment up to the vicinity of a scanning surface from an upper part of a probe, and fitting/installing a fixing member of the upper part of the probe in a recess of a holding part of the attachment. CONSTITUTION:This attachment 1 has integrally a fitting part 2 to be fitted in a U-shaped groove arranged on a probe 9 and a holding part 3 to hold the attachment 1, and is made divisible into two parts from the short side directional center of the attachment 1. Grooves 4 running along paracentetic angles (normally, 0 deg., 15 deg. and 30 deg.) are arranged over the fitting part 2 from the holding part 3 on respective opposed surfaces of the divided attachment 1, and these grooves from guide holes to pass a paracentetic needle. A recess 5 is arranged on a side surface of the holding part 3, and a fixing member 7 having a projecting part to enter this recess 5 is arranged in an upper part of the probe 9, and when the projecting part of this fixing member 7 is fitted in the recess 5, the attachment 1 can be fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attachment of a puncture probe used for biopsy inspection and the like, and more particularly to an attachment suitable for guiding a puncture needle.

[0002]

2. Description of the Related Art A biopsy test is one in which a puncture needle is inserted into a diagnosis site to take out tissue or body fluid from an organ in the body and use this for diagnosis or the like. In this case, an ultrasonic tomographic image of a predetermined area of the body is displayed so that the puncture needle is not accidentally punctured in another place when a predetermined tissue in the body is collected, and a probe dedicated to puncture is used. I'm using it.

In the conventional puncture probe, a U-shaped groove 16 is formed in parallel with the long side direction of the scanning surface as shown in FIGS. 3 and 4, and the puncture needle is used by this groove 16. I was piercing 11. Further, the attachment 10 is attached to the upper portion of the probe in order to stabilize the puncture needle 11. The attachment 10 includes a guide portion 12 that guides the puncture needle 11,
The guide portion 12 is composed of a support portion 13 provided with a groove 14 that is movable in an arc shape, and a fixing portion 17 that fixes the guide portion 12 at an arbitrary position of the groove 14, and the upper portion of the probe and the support portion 13 The joints were fixed by screws 15 or directly attached by an adhesive. Then, when changing the puncture angle, it can be performed by loosening the fixing portion 17 and moving the guide portion 12 and tightening the fixing portion 17 at a desired position.

[0004]

In the above-mentioned prior art, since the guide portion for guiding the puncture needle is located above the probe, the puncture needle outlet of the guide portion and the insertion position into the body are distant from each other. Therefore, the puncture needle may be displaced in the direction of the long side in the groove. Further, since body fluid or the like adheres to the surface of the probe and the inside of the groove after the puncture, it is necessary to perform disinfection after use, and especially disinfection in the groove is difficult.

Further, the attachment work of the attachment by the screw is complicated for the operator, and when the attachment is directly attached, the above-mentioned disinfection work becomes more difficult. Furthermore, in conventional puncture with a convex probe, an attachment was attached to the side of the scanning surface of the probe, so the puncture needle had to be inserted from outside the field of view of the ultrasonic image, and accuracy was improved. It was lacking.

From the above, it is an object of the present invention to improve the accuracy of inserting the puncture needle in a stable state and improve the operability of the attachment.

[0007]

In order to achieve the above object, the present invention provides an ultrasonic probe for puncture having a U-shaped groove in parallel with the long side direction of the scanning plane of the probe. In a puncture attachment for guiding an attachable puncture needle, the puncture attachment includes a fitting portion that fits inside the U-shaped groove without a gap, and a holding portion that forms a knob portion for attachment and detachment. A puncture needle that forms a guide hole for the puncture needle on the opposing surface of the attachment that can be opened and closed, while integrally forming the A groove provided along the angle, a recess is provided on the side surface of the holding portion of the puncture attachment, and a fixing member having a protrusion that fits into the recess at the attachment position of the puncture attachment is provided on the upper part of the probe. Is.

[0008]

[Operation] When attaching the attachment to the probe,
While holding the holding part, fit the fitting part into the U-shaped groove and attach it to the probe. In addition, the attachment can be opened in half from the center of the short side direction, a groove is provided along the puncture angle on the opposing surface of the attachment that is opened in half,
When the attachments facing each other are brought into contact with each other, a guide hole for puncture is formed.

Furthermore, the attachment is fixed by fitting the protrusion of the fixing member attached to the upper portion of the probe into the depression on the side surface of the holding portion.

As a result, the puncturing operation can be performed stably and the attachment and detachment can be easily performed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a side view, a front view, and a side view when the attachment of the present embodiment is divided into halves, and FIG. 2 is a front view, a side view, and a bottom view of the probe when the attachment of the present embodiment is attached. is there. First, the configuration of the attachment 1 will be described. The attachment 1 includes a fitting portion 2 that fits in a U-shaped groove 6 provided in the probe 9 without a gap,
The holding portion 3 for holding the attachment 1 is integrally formed, and is formed of a single material, for example, a material such as plastic that is easy to process. The holding portion 3 has a thickness in the short side direction larger than that of the fitting portion 2 so that the holding portion 3 does not enter the U-shaped groove 6 in consideration of easy holding.

Further, the attachment 1 can be divided into two parts from the center in the short side direction. Grooves 4 are provided from the holding portion 3 to the fitting portion 2 on the respective facing surfaces of the divided attachment 1, and the puncture angle (usually 0 °, 15
There are 3 types (°, 30 °). Then, when the divided attachments 1 are brought into contact with each other, they serve as guide holes through which the puncture needle passes. When the attachment 1 is attached to the probe 9 in this state, the guide hole is formed by the size of the attachment 1, that is, the guide hole is formed from the upper portion of the probe to the vicinity of the scanning surface 8.

Further, a depression 5 is provided on the side surface of the holding portion 3, and a fixing member 7 having a protrusion that fits into the depression 5 is provided on the upper portion of the probe. Then, when the attachment 1 is attached to the probe 9, the attachment 1 is slid along the U-shaped groove 6 to insert the fitting portion 2 into the U-shaped groove 6, and the protruding portion of the fixing member 7 is placed in the recess 6. Move it until it comes in. As a result, the attachment 1 is the probe 9
Fixed to. On the contrary, when removing the attachment 1 from the probe 9, the vicinity of the recess 5 of the holding portion 3 is pressed with a finger so that the protrusion is separated from the recess 5, and the attachment 1 is pulled out in this state.

As described above, since the fitting portion 2 of the attachment 1 can be inserted into the U-shaped groove 6 of the probe 9 without any clearance, the U-shaped groove 6 is prevented from entering body fluid or the like. The probe 9 can be easily disinfected.

Further, since the groove 4 is provided in the opposing surface of the attachment 1 which is divided in half to form a guide hole for puncture, and the puncture needle can be guided from the upper part of the probe to the vicinity of the scanning surface 8, that is, the insertion position, the puncture needle Accurate puncture can be performed without slipping.

Further, the fitting portion 2 is inserted into the U-shaped groove 6, and the protrusion of the fixing member 7 attached to the upper portion of the probe is inserted into the recess 5 provided on the side surface of the holding portion 3, whereby the attachment 1 is attached. Since it can be fixed to the probe 9 and can be removed by pulling out while holding the holding portion 3, the puncturing work can be performed smoothly and the operability is improved.

Furthermore, since the attachment 1 is formed of an inexpensive material such as plastic, it is discarded once and a new attachment 1 is used for the next use.
It is not necessary to disinfect each time it is used, and the time required for puncture preparation can be shortened.

In this embodiment, the attachment of the attachment to the convex ultrasonic probe has been described.
It is also possible to attach the attachment of this embodiment to a sector-type ultrasonic probe or another probe. However,
It is necessary to transform the shape of the fitting portion into the shape of the probe used.

[0019]

According to the present invention, since the guide hole provided in the attachment is formed from the upper portion of the probe to the vicinity of the scanning surface, the puncture needle can be reliably guided to the puncturing position along the guide hole. In addition, the fitting part of the attachment is U
Since it fits in a shape that closes the groove, bodily fluids and the like do not enter the U-shaped groove, and labor such as disinfection can be saved.
Further, the attachment can be fixed easily by simply fitting the fixing member on the upper portion of the probe into the recess of the holding portion of the attachment, and the operability is improved because the holder can be removed only by holding the holding portion.

[Brief description of drawings]

FIG. 1 is a front view, a side view, and a side view when divided of an attachment according to the present invention.

FIG. 2 is a front view, a side view and a bottom view of a probe to which an attachment according to the present invention is attached.

FIG. 3 is a view showing a conventional puncture attachment.

FIG. 4 is a view showing a conventional puncture attachment.

[Explanation of symbols]

 1 Attachment 2 Fitting Part 3 Holding Part 4 Groove 5 Depression 6 U-shaped Groove 7 Fixing Member 8 Scanning Surface 9 Probe

Claims (2)

[Claims] 1. A puncture attachment for guiding a puncture needle that can be attached to an upper portion of a puncture ultrasonic probe provided with a U-shaped groove in parallel with a long side direction of a probe scanning surface. It is composed of a fitting portion that fits into the groove without a gap, and a holding portion that forms a knob portion at the time of mounting and dismounting. The fitting portion and the holding portion are integrally molded, and the fitting is integrally molded. A puncture attachment characterized in that it can be opened and closed vertically from the center of the short side of the mating part and the holding part, and a groove along the puncture angle that forms a guide hole for the puncture needle is provided on the opposing surface of this openable and closable attachment . 2. A dent is provided on a side surface of a holding portion of the puncture attachment, and a fixing member having a protrusion that fits into the dent at a mounting position of the puncture attachment is provided on an upper portion of the probe. Puncture attachment