JP2005253742A - Ultrasonic diagnosis system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ultrasonic diagnosis system capable of reducing possibility of an mispuncture of a puncture needle when puncturing an observing site while observing a living body. <P>SOLUTION: The ultrasonic diagnostic apparatus comprises an ultrasonic probe for transmitting and receiving ultrasonic waves to and from a subject, a puncture assisting device installed on the ultrasonic probe for holding the puncture needle and for guiding and advancing the puncture needle in the puncture direction, and a main unit connected electrically to the ultrasonic probe to generate and display a diagnostic image on the basis of the output from the ultrasonic probe. The main unit is provided with a limit indicator generating means for generating a reachable limit indicator that shows the reachable limit of the puncture needle on the basis of information stored in the main unit of the puncture needle held by the puncture assisting device, and a display processing means for compositing and displaying the reachable limit indicator on the diagnostic image. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an ultrasonic diagnostic apparatus, and more particularly to an ultrasonic diagnostic apparatus capable of performing a puncture treatment on an observation site while observing a living body.

  An ultrasound diagnostic apparatus obtains in-vivo image information and the like by transmitting and receiving ultrasound to and from a living body using an ultrasound probe, and is used in various medical fields. As an ultrasonic diagnostic apparatus, there is an ultrasonic diagnostic apparatus that is used for a puncture treatment in which a body fluid or tissue at an observation site is extracted with a puncture needle while observing a living body (for example, Patent Document 1).

In such an ultrasonic diagnostic apparatus, a puncture guide having a puncture needle introduction groove is attached to an ultrasonic probe. The puncture needle is guided in the puncture direction by being inserted into the puncture needle introduction groove of the puncture guide, and is inserted into the target. At the time of puncturing, a guideline indicating the puncture route of the puncture needle is displayed on the display screen of the ultrasonic diagnostic apparatus together with the image of the target. The operator punctures the target while referring to the guidelines on the display screen.
JP-A-3-173542

  However, in the conventional ultrasonic diagnostic apparatus, even if the puncture is performed while referring to the guideline on the image, the limit position where the puncture needle can reach differs depending on the length of the puncture needle used. May not reach the target, or the puncture needle may penetrate the target and puncture another site.

  Therefore, an object of the present invention is to provide an ultrasonic diagnostic apparatus that can grasp in advance the relationship between the length of a puncture needle to be used and the position of a target and can reduce the possibility of erroneous puncture.

  In order to solve the above-described problem, a first ultrasonic diagnostic apparatus of the present invention includes an ultrasonic probe that transmits and receives ultrasonic waves to a subject, and a puncture needle that is attached to the ultrasonic probe. A puncture assisting device that holds and guides or advances it in the puncture direction and is electrically connected to the ultrasonic probe, generates a diagnostic image based on the output of the ultrasonic probe, and displays this A limit for generating a reach limit display indicating the reach limit of the puncture needle based on information on the puncture needle held by the puncture assisting instrument input to the device body. It has a display production | generation means and a display processing means which synthesize | combines and displays the said arrival limit display on the said diagnostic image, It is characterized by the above-mentioned.

  According to such a configuration, by inputting information on the puncture needle to be used, the reach limit position of the puncture needle is displayed on the diagnostic image in advance before the puncture is performed on the subject. Can do. Therefore, the diagnosing person can perform puncturing after grasping the reach limit of the puncture needle and the positional relationship between the target objects, so that the possibility of erroneous puncturing can be reduced.

  In the first ultrasonic diagnostic apparatus, information on a mounting position of the puncture assisting instrument with respect to the ultrasonic probe is input in the apparatus main body, and based on the mounting position information and the puncture needle information, Preferably the reach limit indication is generated.

  In order to solve the above-described problem, a second ultrasonic diagnostic apparatus of the present invention includes an ultrasonic probe that transmits and receives ultrasonic waves to a subject, and a puncture needle that is attached to the ultrasonic probe. A puncture assisting device that holds and guides or advances it in the puncture direction and is electrically connected to the ultrasonic probe, generates a diagnostic image based on the output of the ultrasonic probe, and displays this A puncture needle that generates a puncture needle length display indicating the length of the puncture needle required for puncturing based on positional information of the puncture target input to the device main body. It has a length display generation means.

  According to such a configuration, by inputting information on the puncture target position, the length of the puncture needle required for puncture can be displayed in advance before the subject is punctured. Therefore, the diagnostician can select the puncture needle with the optimal length for puncture, know the length of the puncture needle and the positional relationship of the target, and perform puncture. Sex can be reduced.

  In the second ultrasonic diagnostic apparatus, it is preferable that the target position information is input by displaying a target position display at a location corresponding to the puncture target on the diagnostic image.

  In the second ultrasonic diagnostic apparatus, information on a mounting position of the puncture assisting device with respect to the ultrasonic probe is input to the apparatus main body, and based on the mounting position information and the target position information. The puncture needle length display is preferably generated.

  In the first and second ultrasonic diagnostic apparatuses, as the puncture assisting instrument, for example, a puncture guide for guiding the puncture needle in the puncture direction, and a puncture gun for advancing the puncture needle in the puncture direction, What contains at least one can be used.

  According to the first ultrasonic diagnostic apparatus of the present invention described above, by inputting information on the puncture needle to be used, before the puncture is performed on the subject, the puncture needle is previously displayed on the diagnostic image. The arrival limit position can be displayed. Therefore, the diagnosing person can perform puncturing after grasping the reach limit of the puncture needle and the positional relationship between the target objects, so that the possibility of erroneous puncturing can be reduced.

  In addition, according to the second ultrasonic diagnostic apparatus of the present invention, the length of the puncture needle required for puncture is entered in advance before the subject is punctured by inputting information on the puncture target position. Can be displayed. Therefore, the diagnostician can select the puncture needle with the optimal length for puncture, know the length of the puncture needle and the positional relationship of the target, and perform puncture. Sex can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a configuration diagram showing an example of an ultrasonic diagnostic apparatus according to the first embodiment of the present invention. This ultrasonic diagnostic apparatus includes an apparatus main body 101 and an ultrasonic probe 100 electrically connected to the apparatus main body 101.

  FIG. 2 is a schematic diagram illustrating an example of an ultrasonic probe. The ultrasonic probe transmits / receives ultrasonic waves to / from the subject. The type of the ultrasonic probe is not particularly limited, but in this embodiment, an example using a body surface contact type probe will be described. The ultrasonic probe 1 includes a sensor unit 1a that is in contact with the body surface of the subject 5 and a grip unit 1b that is held by a diagnostician. The sensor unit 1a has a built-in vibrator for transmitting and receiving ultrasonic waves. A cable 4 is drawn out from the grip portion 1b, and the ultrasonic probe 1 is connected to the apparatus main body through the cable 4. The probe scanning method is not particularly limited, and various types of probes such as a linear type, a convex type, and a sector type can be used.

  The ultrasound probe 1 is equipped with a puncture assisting device for assisting puncture. In this embodiment, a case where a puncture guide for guiding a puncture needle in a predetermined direction is used as a puncture assisting device will be described as an example. The puncture guide 2 has a holder portion 2c attached to the ultrasonic probe 1 and a guide portion 2a into which the puncture needle is inserted. The holder portion 2c is detachably attached to the ultrasonic probe 1. A puncture needle introduction groove 2b is formed in the guide portion 2a. By inserting the puncture needle 3 into the puncture needle introduction groove 2b, the puncture needle 3 is held and guided in the puncture direction. Further, it is preferable that the guide portion 2a is provided with an angle adjusting mechanism so that the insertion position and angle of the puncture needle 3 can be adjusted when the puncture needle 3 is inserted into the puncture needle introduction groove 2b. .

  In the present embodiment, the mounting position of the puncture assisting device with respect to the ultrasonic probe 1 is determined in advance. That is, the mounting position of the puncture assisting device is fixed at a specific position.

  As described above, the apparatus body of the ultrasonic diagnostic apparatus is electrically connected to the ultrasonic probe via a cable or the like. This device itself transmits and receives electrical signals to and from an ultrasound probe, creates a diagnostic image such as a tomogram based on the electrical signal received from the ultrasound probe, and displays it It is.

  In FIG. 1, a scanning control unit 102 is a control unit for generating and scanning an ultrasonic beam. The transmission / reception unit 103 supplies a transmission signal to the ultrasonic probe 100 based on the control by the scanning control unit 102. Further, the transmission / reception unit 103 receives a received signal from the ultrasonic probe 100 and performs processing such as focusing and amplification on the received signal. The diagnostic image generation unit 104 takes in an output signal from the transmission / reception unit 103, creates a diagnostic image such as a tomogram based on the output signal, and outputs the diagnostic image as image data to the display processing unit.

  Information for generating a guideline indicating a puncture route of the puncture needle when the puncture needle is inserted along the introduction groove of the puncture guide is registered in the guideline generation unit 105. A guideline is generated based on the guideline information and is output to the display processing unit 108.

  Furthermore, the apparatus main body 101 is provided with a puncture needle information input unit 106 for inputting information of a puncture needle inserted into the puncture guide. The puncture needle information includes puncture needle length information or information from which the length information can be derived. Examples of information from which puncture needle length information can be derived include an identifier indicating the type of puncture needle. The input puncture needle information is output to the limit position display generation unit 107. The form of the puncture needle information input unit 106 is not particularly limited, and for example, forms such as a keyboard and a trackball can be adopted.

  The limit position display generation unit 107 calculates the reaching limit position of the puncture needle based on the puncture needle information input to the puncture needle information input unit 106, generates a limit position display from the calculation result, and displays the display processing unit 108. Output to. The limit position display indicates the farthest position from the puncture position (the position where the puncture needle on the subject is stabbed) at which the tip of the puncture needle can reach when the puncture needle is inserted into the subject. It is. If the length of the puncture needle is input, the length (projection amount) of the portion of the puncture needle that protrudes from the exit of the puncture needle introduction groove of the puncture guide can be calculated. In this embodiment, the mounting position of the puncture guide is fixed, so that the reaching limit position of the puncture needle can be calculated if the projection amount of the puncture needle is determined.

  When the information input to the puncture needle information input unit 106 is length information of the puncture needle, for example, the reach limit position can be calculated using this length information. When the input information is an identifier indicating the type of puncture needle, for example, length information about a plurality of types of puncture needles is registered in advance in the apparatus body, and the identifier indicating the type of puncture needle is When input, length information corresponding to the type is read out, and the reaching limit position may be calculated using the read length information.

  As described above, diagnostic image data is input from the image generation unit 104, guideline data from the guideline generation unit 105, and limit position display data from the limit position display generation unit 107 to the display processing unit 108. . The display processing unit 108 combines these data and outputs the combined image to the display unit 109. In the display unit 109, a combined image in which the guideline and the limit position display are combined is displayed on the diagnostic image.

  The ultrasonic diagnostic apparatus preferably has a configuration in which display / non-display of the guideline and the limit position display can be selected by a mode selection by the diagnostician. As such an example, there is a configuration capable of selecting a diagnostic mode in which only a diagnostic image is displayed on the display unit and a puncture mode in which a guideline and a limit position display are displayed together with the diagnostic image.

  Next, an example of a puncture treatment method using the ultrasonic diagnostic apparatus will be described.

  First, the diagnostician attaches a puncture guide to a predetermined position of the ultrasonic probe, brings the ultrasonic probe into contact with the surface of the subject, and displays a diagnostic image of the subject on the display unit. Then, the position of the ultrasonic probe is adjusted, and alignment is performed so that the puncture target is displayed well on the display unit. Subsequently, the guideline is displayed on the diagnostic image on the display unit. The diagnostician selects the type of puncture needle to be used, inputs information on the puncture needle from the puncture needle information input unit, and displays the limit position display of the puncture needle on the diagnostic image on the display unit. FIG. 3 is a schematic diagram showing an example of display on the display unit at this time point, 7 is a display screen, 8 is a diagnostic image, 9 is a guideline, 10 is a puncture target image, and 11 is a limit position display.

  Next, the diagnostician performs alignment between the guideline and the puncture target while referring to the diagnostic image, the guideline, and the reaching limit display displayed on the display unit. This alignment can be performed by moving the ultrasonic probe or adjusting the angle of the guide portion of the puncture guide. Then, after aligning the guideline and the puncture target, the ultrasonic probe is maintained in a state where it can be easily punctured. Then, after confirming the display of the limit position of the display unit, the puncture needle is inserted into the puncture needle introduction groove of the puncture guide attached to the ultrasonic probe, and puncture is performed.

  In the above operation, when the alignment between the guideline and the puncture target is performed, if the limit position display is displayed at a position shallower than the puncture target, prepare another puncture needle and use this puncture needle information Input and align again. If the limit position display is displayed at a position deeper than the puncture target, the puncture is performed while adjusting the depth of insertion of the puncture needle in consideration of the positional relationship between the limit position display and the target. Do.

  As described above, according to the ultrasonic diagnostic apparatus, when the information on the puncture needle to be used is input, the limit position display of the puncture needle is displayed on the diagnostic image on the display unit. Puncturing can be performed while recognizing the reach limit position of the needle. As a result, the possibility of erroneous puncture of the puncture needle can be reduced.

(Second Embodiment)
In the first embodiment, an example in which the present invention is applied to an ultrasonic diagnostic apparatus including a body surface contact probe has been described. However, the present invention is not limited to this, and body cavity insertion is performed. It is also possible to apply to an ultrasonic diagnostic apparatus equipped with a type probe. In this embodiment, an example of an ultrasonic diagnostic apparatus including such a body cavity insertion type probe will be described.

  Also in the present embodiment, the ultrasonic diagnostic apparatus includes an apparatus main body and an ultrasonic probe that is electrically connected to the apparatus main body.

  FIG. 4 is a schematic diagram illustrating an example of an ultrasonic probe in the present embodiment. The ultrasonic probe 21 is a body cavity insertion type probe as described above. The ultrasonic probe includes an insertion portion 21a that is inserted into the body cavity 5 and a grip portion 21b that is gripped by a diagnostician outside the body cavity. The insertion portion 21a has an elongated rod shape, and a vibrator is built in the vicinity of the tip. Further, the cable 4 is drawn out from the grip portion 21b, and the ultrasonic probe 21 is connected to the apparatus main body via the cable 4.

  The ultrasonic probe 21 is equipped with a puncture assisting device for assisting puncture. In this embodiment, a puncture gun 23 for advancing a puncture needle in a predetermined direction is attached to the grip portion 21b as a puncture assisting device, and a puncture guide 22 for guiding the puncture needle in a predetermined direction is an insertion portion 21a. It is attached to. The puncture gun 23 may include, for example, a cylinder and a piston, and the puncture needle 3 is attached to the piston, and the puncture needle 3 is advanced and fired in conjunction with the movement of the piston. The advancement of the piston can be performed by, for example, pushing the piston by a diagnostician or the action of a spring built in the puncture gun. As in the first embodiment, the puncture guide 22 can be configured to have a holder portion and a guide portion in which a puncture needle introduction groove is formed, and the entrance of the puncture introduction groove is the puncture of the puncture gun. Aligned with the needle launcher. Similarly to the first embodiment, the guide portion of the puncture guide 22 is preferably provided with a mechanism for adjusting the puncture angle of the puncture needle 3.

  The configuration of the apparatus main body is the same as that of the first embodiment. The operation method of the puncture treatment using the ultrasonic diagnostic apparatus is the same as that of the first embodiment except that the puncture is performed using the puncture gun, and the description thereof is omitted. FIG. 5 is a schematic diagram showing an example of display on the display unit when the guideline and limit position display are displayed on the diagnostic image, where 7 is a display screen, 8 is a diagnostic image, 9 is a guideline, 10 is a puncture target image, and 11 is a limit position display.

  Also in the present embodiment, as in the first embodiment, since the information on the puncture needle to be used is input, the limit position display of the puncture needle is displayed on the diagnostic image on the display unit. A person can perform puncturing while recognizing the reach limit position of the puncture needle. As a result, the possibility of erroneous puncture of the puncture needle can be reduced.

(Third embodiment)
In the first and second embodiments, the case where the attachment position of the puncture assisting device to the ultrasonic probe is fixed has been described. However, the present invention is not limited to this, and the ultrasonic wave It is also possible to change the mounting position of the puncture assisting device on the probe. In this embodiment, an example of such an ultrasonic diagnostic apparatus will be described.

  Also in the present embodiment, the ultrasonic diagnostic apparatus includes an apparatus main body and an ultrasonic probe that is electrically connected to the apparatus main body. The configuration of the ultrasonic probe is the same as in the first and second embodiments except that the mounting position of the puncture assisting instrument is variable.

  The apparatus main body includes a scanning control unit, a transmission / reception unit, a diagnostic image generation unit, a guideline generation unit, a puncture needle information input unit, a display processing unit, and a display unit. The functions and operations of these components are substantially the same as those in the first embodiment, and a description thereof will be omitted.

  Furthermore, the apparatus main body is provided with an auxiliary instrument position input unit for inputting information on the mounting position of the puncture auxiliary instrument. The input mounting position information is output to the limit position display generation unit. The form of the auxiliary instrument position input unit is not particularly limited, and for example, a form such as a keyboard or a trackball can be adopted. Moreover, you may be comprised by the input means same as the puncture needle information input part.

  The limit position display generation unit calculates the reach limit position of the puncture needle based on the puncture needle information input to the puncture needle information input unit and the mounting position information input to the auxiliary instrument position input unit. As in the first embodiment, if the length of the puncture needle is input, the length (projection amount) of the portion of the puncture needle that protrudes from the exit of the puncture needle introduction groove of the puncture guide can be calculated. it can. Then, the limit position of the puncture needle is calculated from the information on the mounting position of the puncture guide and the protrusion amount of the puncture needle. Based on the calculation result, a limit position display is generated and output to the display processing unit.

  Note that the operation method of the puncture treatment using the ultrasonic diagnostic apparatus is substantially the same as that of the first embodiment, and the description thereof is omitted.

  Thus, according to the ultrasonic diagnostic apparatus, since the puncture needle information and the attachment position information of the puncture assisting instrument are input, the limit position display of the puncture needle is displayed on the diagnostic image on the display unit. The diagnostician can perform puncturing while recognizing the reach limit position of the puncture needle. As a result, the possibility of erroneous puncture of the puncture needle can be reduced.

  In the above description, the auxiliary instrument position input unit has been described as adopting a configuration in which input is performed manually by a diagnostician using input means such as a keyboard and a trackball, but this embodiment is not limited thereto. Is not to be done. For example, the ultrasonic probe is provided with a sensor such as a pressure sensor or a magnetic sensor, and the sensor automatically detects the mounting position of the puncture assist device and outputs the detection result to the limit position display generation unit. It is also possible.

(Fourth embodiment)
FIG. 6 is a block diagram showing an example of an ultrasonic diagnostic apparatus according to the fourth embodiment of the present invention. This ultrasonic diagnostic apparatus includes an apparatus main body 101 and an ultrasonic probe 100 electrically connected to the apparatus main body 101. The structure of the ultrasound probe is the same as in the first embodiment.

  The apparatus main body 101 of the ultrasound diagnostic apparatus transmits and receives electrical signals to and from the ultrasound probe 100 and creates a diagnostic image such as a tomogram based on the electrical signals received from the ultrasound probe 100. This is displayed.

  As illustrated in FIG. 6, the apparatus main body 101 includes a scanning control unit 102, a transmission / reception unit 103, a diagnostic image generation unit 104, a guideline generation unit 105, a display processing unit 108, and a display unit 109. The functions and operations of these components are substantially the same as those in the first embodiment, and a description thereof will be omitted.

  Furthermore, the apparatus main body 101 is provided with a target position input unit 111 for inputting position information of the puncture target. The target position information can be input by displaying the target position display at a location corresponding to the puncture target on the diagnostic image displayed on the display unit 109. The form of the target position input unit 111 is not particularly limited, and for example, forms such as a keyboard and a trackball can be adopted.

  The puncture needle length display creation unit 112 calculates the length of the puncture needle required for puncture based on the position information of the puncture target input to the target position input unit 111, and the puncture needle length representing the calculation result A display is created and output to the display unit 109. The length of the puncture needle required for puncture is such that when the puncture needle is inserted into the subject, the tip can reach the target (the position of the target input to the target position input unit). The minimum length of the needle.

  The display unit 109 displays a puncture needle length display output from the puncture needle length display creation unit 112. Further, a composite image in which the guideline is combined on the diagnostic image output from the display processing unit 108 is displayed.

  Next, an example of a puncture treatment method using the ultrasonic diagnostic apparatus will be described.

  First, similarly to the first embodiment, the diagnostician displays a diagnostic image of the subject on the display unit, and displays a guideline on the diagnostic image of the display unit. The diagnostician then aligns the guideline and the puncture target while referring to the diagnostic image and the guideline displayed on the display unit, and maintains the ultrasonic probe in a state where it can be easily punctured.

  Subsequently, the diagnostician inputs target position information by displaying a target position display at a position corresponding to the puncture target on the diagnostic image using an input unit such as a keyboard or a trackball in the target position input unit. Thus, a puncture needle length display indicating the puncture needle length required for puncture is displayed on the display unit. FIG. 7 is a schematic diagram showing an example of display on the display unit at this point, where 7 is a display screen, 8 is a diagnostic image, 9 is a guideline, 10 is a puncture target image, 11 is a target position display, and 12 is A puncture needle length display is shown.

  The diagnostician selects the puncture needle to be used with reference to the puncture needle length display on the display unit, and punctures the puncture needle into the puncture needle introduction groove of the puncture guide attached to the ultrasonic probe. Insert needle and puncture.

  Thus, according to the ultrasonic diagnostic apparatus, the position information of the puncture target is input, and the length of the puncture needle required for puncture is displayed on the display unit. By referring to this display, the diagnostician can easily select a puncture needle having a length suitable for puncture (according to the puncture depth). As a result, the possibility of erroneous puncture of the puncture needle can be reduced.

  In the above description, an example in which a body surface contact type probe is used as an ultrasonic probe has been described. However, the present embodiment is not limited to this, and a body cavity insertion type probe is used. It is also possible to use it. In this case, as the structure of the ultrasonic probe, the same structure as that described in the second embodiment can be adopted.

  Further, as in the third embodiment, the mounting position of the puncture assisting device on the ultrasonic probe is made variable, and the auxiliary for inputting information on the mounting position of the puncture assisting device to the apparatus main body. An instrument position input unit may be provided. In this case, in the puncture needle length display generation unit, the length of the puncture needle required for puncturing is based on the target position information input to the target position input unit and the mounting position information input to the auxiliary instrument position input unit. Is calculated.

  The ultrasonic diagnostic apparatus according to the present invention is suitable for use in various medical fields as a diagnostic / therapeutic apparatus useful for a puncture treatment in which a body fluid or tissue at an observation site is extracted with a puncture needle while observing a living body. is there.

It is a block diagram which shows an example of the ultrasonic diagnosing device in the 1st Embodiment of this invention. It is a schematic diagram which shows an example of the ultrasonic probe which comprises the said ultrasonic diagnostic apparatus. It is a schematic diagram which shows an example of the display screen in the said ultrasonic diagnosing device. It is a schematic diagram which shows an example of the ultrasound probe which comprises the ultrasound diagnosing device in the 2nd Embodiment of this invention. It is a schematic diagram which shows an example of the display screen in the said ultrasonic diagnosing device. It is a block diagram which shows an example of the ultrasonic diagnosing device in the 4th Embodiment of this invention. It is a schematic diagram which shows an example of the display screen in the said ultrasonic diagnosing device.

Explanation of symbols

1, 21 Ultrasound probe 2, 22 Puncture guide 3 Puncture needle 4 Cable 5 Subject 6 Puncture target 7 Display screen 8 Diagnostic image 9 Guideline 10 Puncture target image 11 Limit position display 12 Puncture needle length display 23 Puncture Gun 100 Ultrasonic probe 101 Main body 102 Scan control unit 103 Transmission / reception unit 104 Diagnostic image generation unit 105 Guideline generation unit 106 Puncture needle information input unit 107 Limit position display generation unit 108 Display processing unit 109 Display unit 111 Target position input unit 112 Puncture needle length display generation unit

Claims (7)

An ultrasonic probe that transmits / receives ultrasonic waves to / from a subject; a puncture assisting instrument that is attached to the ultrasonic probe and holds a puncture needle and guides or advances the puncture needle in the puncture direction; and the ultrasonic probe A device main body that is electrically connected to the probe and generates a diagnostic image based on the output of the ultrasonic probe and displays the diagnostic image;
Limit display generation means for generating an arrival limit display indicating an arrival limit of the puncture needle based on information on the puncture needle held by the puncture assisting instrument input to the apparatus main body, and the diagnostic image An ultrasonic diagnostic apparatus comprising: display processing means for combining and displaying the arrival limit display. The information on the mounting position of the puncture assisting device with respect to the ultrasonic probe is input to the apparatus main body, and the reach limit display is generated based on the mounting position information and the puncture needle information. An ultrasonic diagnostic apparatus according to 1. The ultrasonic diagnostic apparatus according to claim 1, wherein the puncture assisting device includes at least one of a puncture guide that guides the puncture needle in the puncture direction and a puncture gun that advances the puncture needle in the puncture direction. An ultrasonic probe that transmits / receives ultrasonic waves to / from a subject; a puncture assisting instrument that is attached to the ultrasonic probe and holds a puncture needle and guides or advances the puncture needle in the puncture direction; and the ultrasonic probe A device main body that is electrically connected to the probe and generates a diagnostic image based on the output of the ultrasonic probe and displays the diagnostic image;
The apparatus main body has a puncture needle length display generating means for generating a puncture needle length display indicating the length of the puncture needle required for puncturing based on position information of the puncture target input to the apparatus main body. An ultrasonic diagnostic apparatus characterized by the above. The ultrasonic diagnostic apparatus according to claim 4, wherein the target position information is input by displaying a target position display at a location corresponding to the puncture target on the diagnostic image. The puncture needle length display is generated based on the mounting position information and the target position information, in the apparatus main body, by inputting information on the mounting position of the puncture assisting device with respect to the ultrasonic probe. The ultrasonic diagnostic apparatus according to 4 or 5. The ultrasonic wave according to any one of claims 4 to 6, wherein the puncture assisting device includes at least one of a puncture guide that guides the puncture needle in the puncture direction and a puncture gun that advances the puncture needle in the puncture direction. Diagnostic device.

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