JP7173205B2 - Puncture guide and ultrasound diagnostic device with puncture guide - Google Patents

Description

The present invention relates to a puncture guide for guiding a needle when puncturing a needle while using an ultrasonic diagnostic apparatus, and an ultrasonic diagnostic apparatus with a puncture guide provided with the same.

When puncturing a patient with a needle, etc., it is sometimes desirable to perform the puncturing operation while confirming the puncture state (needle position, direction, depth, etc.). Ultrasound diagnostic equipment is known as. An ultrasonic diagnostic apparatus is an apparatus for visualizing the inside of a patient's body, and includes a probe and a monitor. In the ultrasonic diagnostic apparatus, first, by applying a probe to the body surface of a part of the body to be visualized, a cross-sectional image of that part is displayed on the monitor, and the operator punctures the part with a needle or the like while looking at the monitor. As such a probe, for example, an imaging transducer disclosed in Patent Document 1 is known, and a needle guide is provided on the side surface of the imaging transducer. The needle guide can insert a puncturing needle or the like, and in the imaging transducer, the needle guide can direct the puncturing needle.

JP 2016-93505 A

The imaging transducer of Patent Document 1 is configured separately from the monitor. Therefore, the practitioner needs to manually move the imaging transducer while looking at the monitor to perform the puncturing operation. In other words, the practitioner needs to move the imaging transducer and perform the puncturing work without looking at his or her hand, so a high degree of skill is required to perform the puncturing. Therefore, the following ultrasonic diagnostic apparatus has been developed that does not require a high degree of skill.

That is, in the ultrasonic diagnostic apparatus to be developed, the probe and the monitor are provided in one casing, that is, the probe and the monitor are integrally constructed. With this ultrasonic diagnostic apparatus, the operator can perform the puncture operation while looking at both his/her own hand and the monitor, and does not require a high degree of skill compared to the one in which the probe and the monitor are positioned apart. It is conceivable that an ultrasonic diagnostic apparatus having such a function also employs a puncture guide in the same manner as the imaging transducer of Patent Document 1, and it is expected that the ultrasonic diagnostic apparatus can effectively utilize the puncture guide. Desired.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a puncture guide that can be effectively used in an ultrasonic diagnostic apparatus.

In the puncture guide of the present invention, a probe for receiving ultrasonic waves and an image display unit for displaying an image created based on the received ultrasonic waves are provided in one casing, and the probe is arranged at one end of the casing in a predetermined direction. and a puncture guide attached to an ultrasonic diagnostic apparatus in which the image display unit is arranged on the main surface of the casing, the needle of a needle assembly for puncturing being pierceable and through which the needle is inserted. a guide portion having a guide hole for guiding the needle so that the needle tip passes through a position spaced apart from the probe by a predetermined distance in one of the predetermined directions; It is arranged on one end side in a predetermined direction from the image display section.

According to the present invention, since the guide portion is provided on the main surface of the casing and on one end side of the image display portion in the predetermined direction, it is easy to understand the correspondence between the image displayed on the image display portion and the position of the needle. Puncture work can be facilitated. As a result, the puncture guide can be effectively used for the ultrasonic diagnostic apparatus.

In the puncture-guided ultrasonic diagnostic apparatus of the present invention, a probe for receiving ultrasonic waves and an image display unit for displaying an image created based on the received ultrasonic waves are provided in one casing, and the casing is positioned along a predetermined direction. An ultrasonic diagnostic apparatus in which a probe is arranged on an end face and the image display unit is arranged on the main surface of the casing; a puncture guide having a guide hole for guiding the needle so that the needle tip passes through a position a predetermined distance away from the probe in one predetermined direction, and the puncture guide includes the image display unit on the main surface is provided on the casing so as to be located on the other end side in a predetermined direction of the .

According to the present invention, since the guide portion is provided on the main surface of the casing and on one end side of the image display portion in the predetermined direction, it is easy to understand the correspondence between the image displayed on the image display portion and the position of the needle. Puncture work can be facilitated. As a result, the puncture guide can be effectively used for the ultrasonic diagnostic apparatus.

According to the present invention, a puncture guide can be effectively used for an ultrasonic diagnostic apparatus.

1 is a perspective view of the ultrasonic diagnostic apparatus with a puncture guide according to the first embodiment, viewed obliquely from above; FIG. FIG. 2 is a front view showing a state in which a puncture guide is removed from the ultrasonic diagnostic apparatus of FIG. 1; FIG. 3 is a perspective view of the puncture guide in FIG. 2 as seen obliquely from the front and above; 3 is a bottom view of the puncture guide of FIG. 2 as seen from below; FIG. 2 is a left side view showing a state in which a needle assembly is inserted into a puncture guide in the ultrasonic diagnostic apparatus with a puncture guide shown in FIG. 1; FIG. 6 is a front view of the ultrasonic diagnostic apparatus with a puncture guide in FIG. 5 as viewed from the front; FIG. FIG. 10 is a perspective view of the ultrasonic diagnostic apparatus with a puncture guide according to the second embodiment, viewed obliquely from above;

Puncture guides 1 and 1A and ultrasonic diagnostic apparatuses 2 and 2A with a puncture guide according to first and second embodiments of the present invention will be described below with reference to the drawings. It should be noted that the concept of direction used in the following description is used for convenience of explanation, and does not limit the orientation of the configuration of the invention to that direction. Puncture guides 1 and 1A and puncture guide-equipped ultrasonic diagnostic apparatuses 2 and 2A described below are merely embodiments of the present invention. Therefore, the present invention is not limited to the embodiments, and additions, deletions, and modifications can be made without departing from the spirit of the invention.

[First embodiment]
A puncture-guided ultrasonic diagnostic apparatus 2 shown in FIG. 1 is used for puncturing a needle or the like while visualizing subcutaneous blood vessels, and includes a puncture guide 1 and an ultrasonic diagnostic apparatus 3. . The puncture guide 1 is attached to a monitor-integrated ultrasonic diagnostic apparatus (hereinafter simply referred to as "ultrasonic diagnostic apparatus") 3, and guides a needle 31a of a needle assembly 31, which will be described later. Also, the ultrasonic diagnostic apparatus 3 is for visualizing the state of the subcutaneous tissue. That is, the ultrasonic diagnostic apparatus 3 can visualize the state of the subcutaneous tissue of the pressed portion by pressing against the body surface coated with liquid gel such as echo gel. An example of the configuration of the ultrasonic diagnostic apparatus 3 and the puncture guide 1 will be described below.

<Ultrasound diagnostic equipment>
The ultrasonic diagnostic apparatus 3 includes a casing 11, a probe 12, and a monitor 13, as shown in FIG. The casing 11 is a substantially rectangular box-shaped member when viewed from the front, and the lower end portion 11a of the casing 11 is formed in a trapezoidal shape tapering toward the tip 11b. A probe 12 is arranged at the tip 11 b of the casing 11 . That is, the ultrasonic diagnostic apparatus 3 has a probe 12 at its distal end 3a. The casing 11 is tilted rearward from the intermediate portion to the base end side portion, and the monitor 13 is arranged on the front surface (that is, main surface) 11d. The functions of the probe 12 and the monitor 13 are described below.

The probe 12 is configured to transmit and receive ultrasonic waves, and is composed of a vibrator such as a piezoelectric element. Moreover, the probe 12 is connected to a control device (not shown) housed in the casing 11, and transmits ultrasonic waves according to commands from the control device. Further, the probe 12 receives ultrasonic waves reflected from subcutaneous tissues, that is, reflected waves, and outputs signals corresponding to the received ultrasonic waves to the control device. The control device performs image processing based on the signal, and outputs image data obtained by the image processing to the monitor 13 .

The monitor 13, which is an example of an image display device, is, for example, a liquid crystal monitor or an organic EL monitor, and displays an image according to image data. That is, the monitor 13 displays an image created based on the reflected waves received by the probe 12 . The monitor 13 having such functions is arranged on the front surface 11d of the casing 11 as described above. The width of the monitor 13 extends from the vicinity of the left end to the vicinity of the right end of the casing 11, and the height of the monitor 13 extends from the middle portion to the vicinity of the base end. That is, the monitor 13 is arranged on the front surface 11d of the casing 11 from the intermediate portion to the proximal end.

In the ultrasonic diagnostic apparatus 3 configured in this manner, ultrasonic waves are transmitted from the probe 12 as described above. For example, when the probe 12 is applied to the body surface, the transmitted ultrasonic waves are reflected by various subcutaneous tissues, and the probe 12 receives the reflected waves. The ultrasonic diagnostic apparatus 3 performs image processing based on the received reflected waves, and displays the state of the subcutaneous tissue on the monitor 13 . The ultrasonic diagnostic apparatus 3 having such functions is used when puncturing a subcutaneous blood vessel or the like. The puncture guide 1 is attached to the distal end portion 11 a of the casing 11 .

<Puncture guide>
The puncture guide 1 has a bracket 21 and a guide portion 22 as shown in FIG. The bracket 21 is a substantially trapezoidal cover-like member when viewed from the front, and the inner space thereof is formed in accordance with the outer shape of the distal end portion 11 a of the casing 11 . Therefore, the bracket 21 can be mounted over the tip end portion 11 a of the casing 11 . A pair of grooves 21a, 21a are formed in each of the left and right side surfaces of the bracket 21. As shown in FIG.

The pair of grooves 21a, 21a are formed apart in the front-rear direction, and by forming them apart, a flexible piece 21b is formed between them. An engaging hole 21c is formed in the flexible piece 21b. That is, the bracket 21 has a pair of engaging holes 21c, 21c arranged on the left and right sides, respectively. Further, the casing 11 is formed with a pair of engaging protrusions 11c, 11c corresponding to the pair of engaging holes 21c, 21c, respectively. Each of the pair of engagement projections 11c, 11c is fitted into each of the pair of engagement holes 21c, 21c when the bracket 21 is attached to the distal end portion 11a of the casing 11, and is fitted into each of the engagement holes 21c, 21c. The bracket 21 is thereby engaged with the casing 11 . As a result, the bracket 21 is attached to the distal end portion 11 a of the casing 11 while being positioned thereon.

Also, the pair of flexible pieces 21b, 21b are spread laterally by the pair of engaging projections 11c, 11c when the bracket 21 is attached to the casing 11 and when the bracket is removed from the casing 11. there is Thereby, the bracket 21 is detachably attached to the casing 11, and the bracket 21 does not easily come off from the casing 11 after being attached. The bracket 21 having such a shape further has a fitting protrusion 21 d for attaching the guide portion 22 to the bracket 21 .

The fitting protrusion 21d is integrally formed on the front surface 21f of the bracket 21 (that is, the surface on the same side as the front surface 11d of the casing 11). The fitting protruding portion 21d is arranged at the center in the left-right direction on the front surface 21f of the bracket 21, and is formed to protrude forward from the front surface 21f of the bracket 21. As shown in FIG. More specifically, the fitting protrusion 21d is formed in the shape of a substantially right-angled triangular plate when viewed from the side, and is formed integrally with the front surface 21f of the bracket 21 with the oblique side facing the front surface 21f. The fitting projection 21d has ridges 21e, 21e on its left and right side surfaces. It extends obliquely forward and upward along the . The guide portion 22 is fitted to the fitting projection portion 21d formed in this manner.

The guide part 22 guides the puncturing needle 31a and determines the puncturing direction of the needle 31a when the needle 31a (see FIGS. 5 and 6 described later) of the needle assembly 31 such as an indwelling needle is punctured into the subcutaneous tissue. , and is formed in a substantially trapezoidal block shape when viewed from the side. More specifically, the guide portion 22 is formed with a fitting groove 22a penetrating vertically. The fitting groove 22a is open rearward, and its shape is formed according to the shape of the fitting protrusion 21d. That is, the fitting groove 22a extends obliquely downward to the rear, and a pair of groove portions 22b, 22b are formed on the inner peripheral surface of the guide portion 22 so as to correspond to the pair of protruding portions 21e, 21e. Accordingly, the guide portion 22 allows the fitting projection portion 21d to be inserted into the fitting groove 22a from below, and the fitting projection portion 21d is fitted to the guide portion 22 by inserting. Further, the width of the rear opening of the fitting groove 22a is narrowed near the upper end of the guide portion 22, so that the inserted fitting projection portion 21d cannot come off from above. Therefore, the fitting protrusion 21 d is accommodated within the guide portion 22 and the guide portion 22 is attached to the bracket 21 .

Further, the rear end surface of the guide portion 22 is formed substantially flat, and the rear end surface of the guide portion 22 is formed along the front surface 21 f of the bracket 21 when attached to the bracket 21 . Further, the front end surface 22c of the guide portion 22 has a predetermined angle α (for example, 20 degrees≦α≦80 degrees) with respect to the rear end surface. That is, when the bracket 21 is attached to the casing 11 , the front end surface 22 c forms a predetermined angle α with respect to the tip end portion 11 a of the casing 11 . Thus, the front end surface 22c of the guide portion 22 is formed to be inclined with respect to the front surface 21f of the bracket 21. As shown in FIG. A guide hole forming portion 22d is formed in the center portion in the left-right direction of the front end surface 22c.

The guide hole forming portion 22d protrudes from the front end face 22c in a direction orthogonal thereto and extends obliquely forward and upward along the front end face 22c. cross section) is formed in a substantially semicircular shape. A guide hole 22e is formed along the axis of the guide hole forming portion 22d. That is, the guide portion 22 is formed with a guide hole 22e extending obliquely forward and upward. The guide hole 22e penetrates the guide portion 22 obliquely forward and upward, and as shown in FIG. It has become. The hole diameter of the guide hole 22e is designed according to the outer diameter of the needle 31a to be used, and the inserted needle 31a is stably held so as not to wobble in the front, rear, left, and right directions.

Also, the angle β of the guide hole 22e (in this embodiment, the guide hole 22e is formed along the front end surface 22c, β=α), as shown in FIG. It is set so that the needle tip 31b will pass a predetermined distance (about 1 cm in this embodiment) downward from the probe 12 when the probe 12 is advanced downward. Further, the guide hole 22e extends straight in the vertical direction when viewed from the front, and as shown in FIG. etc.) overlaps the monitor 13 . A depth gauge 13a is shown on the left side of the image on the monitor 13, so that the depth of each part displayed on the image can be known by the depth gauge 13a. Also, in the center of the image on the monitor 13, a plurality of depth markers (seven depth markers in this embodiment) 13b to 13h associated with each predetermined depth are displayed. The depth markers 13b to 13h are positioned vertically above the guide hole 22e when viewed from the front, and are spaced apart in the vertical direction.

Also, when the probe 12 is pressed against the body surface, the monitor 13 displays a cross section of the pressed portion cut along a virtual plane extending vertically downward from the probe 12 . A line connecting the seven depth markers 13b to 13h on the cross section displayed on the monitor 13 corresponds to a projection line when the center axis L1 of the guide hole 22e is projected onto the cross section from the front. Therefore, when the needle 31a of the needle assembly 31 is pushed forward, the needle tip 31b of the needle 31a guided by the guide hole 22e appears on the line connecting the depth markers 13b to 13h. Therefore, by referring to these seven depth markers 13b to 13h, it is possible to predict the position on the monitor 13 where the needle tip 31b of the needle assembly 31 guided through the guide hole 22e appears. A guide hole forming portion 22d having such a guide hole 22e is further formed with an outlet 22f on the peripheral surface thereof.

As shown in FIG. 4, the extraction port 22f opens forward (that is, the side opposite to the ultrasonic diagnostic apparatus 3 side), and is the peripheral surface of the guide hole forming portion 22d and is located at the left and right central portion (that is, the most central portion) in a front view. portion protruding forward). The outlet 22f extends along the central axis L1 of the guide hole 22e, and extends straight from the upper end to the lower end of the guide hole forming portion 22d. The guide portion 22 is made of flexible material such as polyethylene, polypropylene, polyethylene terephthalate, elastomer, polyvinyl chloride, etc., so that the guide hole forming portion 22d can be bent. . As a result, when the needle 31a inserted into the guide hole 22e is pulled toward the extraction opening 22f (or the puncture guide 1 is moved in the direction away from the needle 31a (that is, toward the rear side)), the extraction opening 22f is widened, and the needle 31a is opened from there. The needle 31a can be pulled out. On the other hand, when the needle is inserted into the guide hole 22e, the width of the outlet 22f is smaller than the outer diameter of the needle 31a, and the guide portion 22 stably holds the needle 31a. there is

[About puncturing]
A puncture operation using the puncture guide 1 and the ultrasonic diagnostic apparatus 3 will be described below. First, the puncture guide 1 is attached to the distal end portion 11 a of the casing 11 of the ultrasonic diagnostic apparatus 3 . That is, the puncture guide 1 is attached to the tip side portion 11a so that the guide portion 22 of the puncture guide 1 is arranged on the same side as the front surface 11d of the casing 11, that is, on the front side. A liquid gel such as an echo gel is applied to the body surface in order to improve the acoustic coupling between the probe 12 and the body surface. After the application, the ultrasonic diagnostic apparatus 3 presses the probe 12 against the body surface as shown in FIG. . The subject searches for the position of the blood vessel 41 while looking at the condition of the subcutaneous tissue 40 displayed on the monitor 13. After confirming the position of the blood vessel 41, the subject moves the needle assembly 31 while referring to the depth gauge 13a and the depth markers 13b to 13h. determine the puncture position of the For example, if a position where the blood vessel 41 is arranged on the line connecting the depth markers 13b to 13h and at a depth of about 1 cm can be confirmed, that position is set as the puncture position.

After the puncture position is determined in this manner, the needle 31a of the needle assembly 31 is inserted into the guide hole 22e. When the needle assembly 31 is inserted, the grasping portion 31c of the needle assembly 31 is arranged so as to overlap the monitor 13 in a front view, and the operator can see the monitor 13 and the hand holding the grasping portion 31c of the needle assembly 31 at the same time. The subcutaneous tissue 40 can be punctured with the needle tip 31b. Thereafter, the operator pierces the puncture site with the needle tip 31b through the grasping portion 31c and pushes it into the subcutaneous tissue. Then, the cross section of the needle tip 31b is eventually displayed on the monitor 13, and it is confirmed that the needle tip 31b has reached the blood vessel.

As described above, in the puncture guide-equipped ultrasonic diagnostic apparatus 2 , the guide section 22 of the puncture guide 1 is arranged below the monitor 13 . Therefore, the correspondence between the image displayed on the monitor 13 and the position of the needle tip 31b of the needle assembly 31 is easy to understand, and the puncture operation can be easily performed. Therefore, the puncture guide 1 can be effectively used for the ultrasonic diagnostic apparatus 3 .

In addition, in the ultrasonic diagnostic apparatus 2 with a puncture guide, the line connecting the depth markers 13b to 13h on the monitor 13 corresponds to the projection line obtained by projecting the center axis line L1 of the guide hole 22e onto the cross section from the front. The depth markers 13b to 13h are positioned vertically above the guide hole 22e. By arranging the guide portion 22 of the puncture guide 1 below the monitor 13, the depth markers 13b to 13h and the guide holes 22e can be arranged in correspondence as described above. This makes it possible to easily grasp the puncture direction of the needle 31a inserted through the guide hole 22e when puncturing. The depth through which the needle tip 31b passes directly under the probe 12 is also determined by the angle β of the guide hole 22e. Therefore, when the needle assembly 31 is pushed forward, it is possible to grasp in advance the position where the cross section of the needle tip 31b is projected.

Although it is preferable that the depth markers 13b to 13h are displayed on the monitor 13, the depth markers 13b to 13h are not necessarily displayed. This is because the grip portion 31 c of the needle assembly 31 overlaps the monitor 13 . Thus, the orientation of the needle 31a to be punctured can be grasped from the relationship between the direction in which the needle assembly 31 extends from the grip portion 31c to the needle tip 31b and the image on the monitor 13. FIG. Therefore, it is possible to understand in what direction the needle 31a is punctured into the puncture site. In addition, as described above, the angle β of the guide hole 22e determines the depth at which the needle tip 31b passes directly under the probe 12, and the position where the cross section of the needle tip 31b is projected can also be predicted. Therefore, even without the depth markers 13b to 13h, it is possible to predict in advance the position where the cross section of the needle tip 31b is projected, and the depth markers 13b to 13h are not necessarily required.

After the cross section of the needle tip 31b is displayed on the monitor 13, the grasping portion 31c of the needle assembly 31 is advanced by a predetermined distance. When the needle assembly 31 is an indwelling needle, the needle assembly 31 is indwelled at the advanced position, and then the needle 31 a of the needle assembly 31 is pulled out from the puncture guide 1 . That is, when the ultrasonic diagnostic apparatus 3 is tilted away from the needle 31a while holding the needle assembly 31, the needle 31a expands the opening 22f, and when further tilted, the needle 31a is guided through the opening 22f. It escapes from the hole 22e. In this manner, the needle 31a can be easily pulled out from the guide hole 22e by the outlet 22f. Further, even after the needle 31a is pulled out from the guide hole 22e, the needle assembly 31 remains in place, and subsequent treatments (for example, dialysis, liquid injection, blood sampling, etc.) are performed.

The puncture guide 1 configured in this way has a bracket 21 and can be attached to and detached from the casing 11 by means of the bracket 21, so that the puncture guide 1 can be used as a disposable product. Therefore, the puncture guide 1 does not need to be sterilized every time it is used, and the puncture operation is easy.

[Second embodiment]
The puncture guide-equipped ultrasonic diagnostic apparatus 2 of the second embodiment includes a puncture guide 1A as described later, and the puncture guide 1A is similar in configuration to the puncture guide 1 of the first embodiment. In the following, the configuration of the puncture guide 1A of the second embodiment will be mainly described with respect to the points that are different from the puncture guide 1 of the first embodiment.

The puncture-guided ultrasonic diagnostic apparatus 2 includes an ultrasonic diagnostic apparatus 3 and a puncture guide 1A, as shown in FIG. The puncture guide 1A has a fitting projection portion 21d and a guide portion 22A. More specifically, the fitting projection portion 21d is arranged in the front surface 11d of the casing 11 and in the center portion in the left-right direction of the front end portion 11a. The fitting protruding portion 21d is formed in the shape of a substantially right-angled triangular plate when viewed from the side, and is attached to the casing 11 with its oblique side facing the front face 11d of the casing 11 . The fitting projection 21d has ridges 21e, 21e on its left and right side surfaces. It extends obliquely forward and upward along the . The guide portion 22A is fitted to the fitting projection portion 21d formed in this way.

22 A of guide parts have the shape similar to the guide part 22 of 1st Embodiment. That is, the guide portion 22A has a fitting groove 22a into which the fitting projection portion 21d can be fitted. Further, the rear end surface of the guide portion 22A is formed flat, and the rear end surface of the guide portion 22A is formed along the front surface 21f of the bracket 21 when attached to the bracket 21. As shown in FIG. On the other hand, the front end face 22c of the guide portion 22A has a predetermined angle α (for example, 20 degrees ≤ α ≤ 80 degrees) with respect to the rear end face, and the front end face 22c has a guide hole formed in the center portion in the left-right direction. A portion 22d is formed.

Further, the guide hole forming portion 22d is also formed in the same manner as the guide hole forming portion 22d of the first embodiment. That is, a guide hole 22e is formed in the guide hole forming portion 22d, and the guide hole 22e is formed at an angle β (in this embodiment, , β=α). As a result, when the needle 31a of the needle assembly 31 is inserted into the guide hole 22e, the needle tip 31b eventually passes downward from the probe 12 at a predetermined distance (approximately 1 cm in this embodiment).

The puncture guide 1A configured in this manner is used when performing a puncture operation using the ultrasonic diagnostic apparatus 3, like the puncture guide 1 of the first embodiment. That is, the puncture guide 1A is used in the same manner as the puncture guide 1 of the first embodiment, and can guide the needle tip 31b of the needle assembly 31 downward from the probe 12 to a predetermined distance. Further, the guide portion 22A of the puncture guide 1A is made of a flexible material like the guide portion 22 of the first embodiment, and can be detachably attached to the guide hole forming portion 22d. As a result, the puncture guide 1A can also be used as a disposable product. Therefore, the puncture guide 1 does not need to be sterilized every time it is used, and the puncture operation is easy.

In addition, the puncture guide 1A of the second embodiment has the same effects as the puncture guide 1 of the first embodiment.

[About other embodiments]
The puncture guides 1 and 1A of the first and second embodiments are formed so that the guide portion 22 is positioned in the center portion of the casing 11 in the left-right direction, but it does not necessarily have to be formed that way. That is, the guide portion 22 is positioned on the front surface 11d side of the casing 11 where the monitor 13 is formed, and is arranged so that at least a portion of the needle assembly 31 inserted into the guide hole 22e overlaps the monitor 13 when viewed from the front. It is good if there is Therefore, the guide hole 22e may be located on the front surface 11d of the casing 11 and positioned to the left or right within the range of the lateral width of the monitor 13. As shown in FIG. By forming in this way, the puncture operation can be performed while looking at both the monitor 13 and the grasping portion 31c of the needle assembly 31, as in the first and second embodiments. When the guide portion 22 is positioned at the center of the left and right, it should be noted that a biased force acts on the ultrasonic diagnostic apparatus 3 in either the left or right direction during the insertion and puncture operations of inserting the needle 31a into the guide hole 22e. It is possible to suppress it and stably perform the insertion work and the puncture work.

In addition, in the puncture guides 1 and 1A of the first and second embodiments, the guide hole 22e extends straight in the vertical direction when viewed from the front, but it does not necessarily have to extend in such a direction. That is, the guide hole 22e may be tilted left and right with respect to the vertical direction in a front view, and is formed so that the tip 31b of the needle 31a inserted into the guide hole 22e passes downward from the probe 12 by a predetermined distance. It is good if it is. Also, the portion from the intermediate portion to the proximal portion of the casing 11 of the ultrasonic diagnostic apparatus 3 does not necessarily have to be tilted rearward, and may be straight.

1, 1A puncture guide 2, 2A ultrasound diagnostic apparatus with puncture guide 3 ultrasound diagnostic apparatus 11 casing 11d front surface (principal surface)
Reference Signs List 12 probe 13 monitor 21 bracket 22, 22A guide part 22e guide hole 22f outlet 31 needle assembly 31a needle 31b needle tip 31c grip part (proximal end)

Claims (2)

It has a probe for receiving ultrasonic waves and an image display section for displaying an image created based on the received ultrasonic waves, the probe being arranged at one end in a predetermined direction, and the image display section on the front of the other end in a predetermined direction. an ultrasound diagnostic device having a casing in which the
a puncture guide detachable from one end portion of the casing in a predetermined direction,
The front surface of the one end side portion in the predetermined direction and the front surface of the other end side portion in the predetermined direction intersect with each other, and the intersecting portion forms a forward convex shape,
The puncture guide has a guide portion formed with a guide hole through which a needle for puncture can be inserted . and located in the center in the left-right direction and protruding forward ,
A set of ultrasonic diagnostic equipment and a puncture guide. It has a probe for receiving ultrasonic waves and an image display section for displaying an image created based on the received ultrasonic waves, the probe being arranged at one end in a predetermined direction, and the image display section on the front of the other end in a predetermined direction. an ultrasound diagnostic device having a casing in which the
a puncture guide provided in the casing and having a guide portion formed with a guide hole through which a puncture needle can be inserted;
The front surface of the one end side portion in the predetermined direction and the front surface of the other end side portion in the predetermined direction intersect with each other, and the intersecting portion forms a forward convex shape,
The puncture guide is positioned on the front surface of the one end portion of the casing in the predetermined direction and in the center in the left-right direction, and protrudes forward.
Puncture-guided ultrasound diagnostic equipment.

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