JP2013240507A - Ultrasonic probe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide ultrasonic probes 100 and 200 for easily tilting a medial instrument X diagonally to a body surface Z and inserting it, when inserting the medial instrument X to an object part Y in the body present roughly in parallel with the body surface Z.SOLUTION: An ultrasonic probe 100 includes: a front part 1 having a roughly rectangular parallelepiped shape, and having such a shape that a cross-section in a direction perpendicular to the long side direction of a front surface 3 projects forward; a cut part 4 for puncture which is formed in a short side direction from the almost center of one of long sides facing each other on the front surface 3, communicates from the front end to the rear end of the ultrasonic probe 100, and guides a medial instrument X; an instrument detection part 9 formed around the cut part 4 for puncture on the front surface 3; and an object part detection part 10 composed of a plurality of elements 11 arrayed from the periphery of the instrument detection part 9 to the long side direction outer side on the front surface 3.

Description

  The present invention relates to an ultrasonic probe, and more particularly to an ultrasonic probe that transmits ultrasonic waves toward a front object and receives the ultrasonic waves returned from the object.

  Conventionally, in the medical field, when performing a treatment such as an examination or treatment of an affected area using a needle-like instrument such as an injection needle, biopsy needle, forceps, or laser knife, the depth of an object such as an affected area is measured using an ultrasonic probe. By operating the needle-shaped instrument while confirming the three-dimensional shape including the vertical direction, more accurate treatment is possible.

  In this case, it is common to use an attachment attached to the side of the diagnostic probe as a guide for the needle-like instrument and puncture the body object in an oblique direction. In order to insert, there is a problem that the insertion distance to the object is long, and the needle-like instrument deviates from the object, and skill is required for accurate puncture.

  Therefore, in order to improve the operability, a cylindrical probe having a puncture through hole at the center and an ultrasonic transmission / reception element for detecting a needle-like instrument around the puncture through hole is provided. Previously proposed (for example, Patent Document 1). This probe includes an ultrasonic transmission / reception element provided around the puncture through-hole for confirming the tip position of the needle-like instrument, and an ultrasonic transmission / reception element for observing a front object disposed outside the element. This makes it possible to accurately puncture the needle-like instrument into the body while checking the relative position of both the tip position of the needle-like instrument and the body object in front of the probe. . This probe has good operability when puncturing perpendicularly from the body surface to an object having a spread such as breast cancer.

JP 2011-104052 A

  However, since blood vessels such as the jugular vein are linearly parallel to the body surface, it is necessary to incline the needle obliquely with respect to the body surface when inserting it into the blood vessel. The tentacles have poor operability.

  The present invention has been made in view of the above problems, and when inserting a medical instrument into a target site in the body that is substantially parallel to the body surface, the medical instrument is placed on the body surface. An object of the present invention is to provide an ultrasonic probe that can be easily inserted while being inclined obliquely.

  In order to achieve the above object, an ultrasonic probe according to a first invention guides a medical instrument that is punctured into a body and used for treatment of a target site in the body, and ultrasonic waves toward a front object. And an ultrasonic probe for receiving the ultrasonic wave returned from the object, wherein the ultrasonic probe has a substantially rectangular parallelepiped shape and is perpendicular to the long side direction of the front surface. The cross-section in any direction is formed in the short side direction from the approximate center of any one of the front part having a shape projecting forward and the long side facing the front part of the front part. The ultrasonic probe is formed so as to communicate from the front end to the rear end, and is formed around the puncture cut portion on the front surface of the front portion and the puncture cut portion for guiding the medical instrument. , Send ultrasonic waves towards the medical device, An instrument detection unit that receives the returned ultrasound, and is arranged from the periphery of the instrument detection unit toward the outside in the long side direction on the front surface of the front part, and transmits the ultrasound toward the target site, And a target part detection unit including a plurality of elements that receive the ultrasonic waves returned from the target part.

  In addition to the above configuration, the ultrasonic probe according to the second invention has a shape in which the front portion has a cross section perpendicular to the long side direction of the front surface protruding in an arc shape or a polygon shape toward the front. It is characterized by that.

  The ultrasonic probe according to a third aspect of the present invention is the ultrasonic probe according to the third aspect of the invention, wherein the target part detection unit is configured such that each element is a lattice from the periphery of the instrument detection unit toward the outside in the long side direction on the front surface of the front part. It is characterized by being arranged in a shape.

  An ultrasonic probe according to a fourth invention is characterized in that, in addition to the above configuration, a control unit that can be controlled to cause each element of the target region detection unit to perform sector scanning is further provided.

  An ultrasonic probe according to a fifth aspect of the present invention is an instrument provided in a needle-like medical instrument in which the puncture cut portion is formed with an inclined surface inclined from the tip in addition to the above configuration. A cut-side engagement portion that can be engaged with the side-engagement portion, and the cut-side engagement portion is arranged such that the inclined surface of the medical device faces the opening side of the puncture cut-out portion. It is characterized by engaging with the instrument side engaging portion.

  An ultrasonic probe according to a sixth invention guides a medical instrument used for treatment of a target site in the body by being punctured in the body, and transmits an ultrasonic wave toward a front target object. An ultrasonic probe that receives the returned ultrasonic wave, the ultrasonic probe having a substantially rectangular parallelepiped shape and a front surface of the probe main body The probe body is formed in the short side direction from the approximate center of any one of the long sides facing each other on the front surface of the probe body, and the probe body. A main body side puncture notch for guiding the medical device, and a periphery of the main body side puncture notch on the front surface of the probe main body. Is formed and transmits ultrasonic waves toward the medical device, and the medical device An instrument detector that receives the ultrasound returned from the probe, and is arranged from the periphery of the instrument detector toward the outside in the long side direction on the front surface of the probe body, and transmits the ultrasound toward the target site And a target part detection unit comprising a plurality of elements that receive the ultrasonic waves returned from the target part, and the buffer material has a thickness in the front-rear direction facing the front surface of the probe body. The long side has a shape that decreases from the long side on which the main body side puncture cut portion is formed to the other long side, and communicates with the main body side puncture cut portion and the buffer. It has a notch part for buffer side puncture formed so as to communicate from the front end to the rear end of the material.

  An ultrasonic probe according to a seventh invention is characterized in that, in addition to the above configuration, the buffer material is detachably attached to the front surface of the probe main body.

  An ultrasonic probe according to an eighth invention is characterized in that, in addition to the above configuration, the buffer material has a flat front surface.

  In addition to the above configuration, the ultrasonic probe according to a ninth aspect of the invention has a shape in which the cross section of the buffer material in a direction perpendicular to the long side direction of the front surface of the probe body projects forward. It is characterized by having a front part.

  An ultrasonic probe according to a tenth aspect of the present invention is the ultrasonic probe according to the tenth aspect of the present invention. It is characterized by being arranged in a lattice pattern.

  An ultrasonic probe according to an eleventh aspect of the invention is characterized in that, in addition to the above configuration, a control unit that can be controlled to cause each element of the target part detection unit to perform sector scanning is further provided.

  In an ultrasonic probe according to a twelfth invention, in addition to the above-described configuration, the main body side puncture cutting portion is provided in a needle-like medical instrument in which an inclined surface inclined with respect to an axis is formed from the tip. A main body cut side engaging portion that can be engaged with the instrument side engaging portion, and the main body cut side engaging portion is configured such that the inclined surface of the medical device is an opening of the main body side puncturing cut portion. It is characterized by engaging with the instrument side engaging part so as to face the part side.

  In the ultrasonic probe according to a thirteenth aspect of the invention, in addition to the above configuration, the buffer side puncture cutting portion is provided in a needle-like medical instrument having an inclined surface inclined from the tip. A buffer cut-side engagement portion that can be engaged with the instrument-side engagement portion, and the buffer cut-side engagement portion is configured such that the inclined surface of the medical device is an opening of the buffer-side puncture cut-out portion. It is characterized by engaging with the instrument side engaging part so as to face the part side.

  According to the ultrasonic probe according to the first invention, the ultrasonic probe has a substantially rectangular parallelepiped shape, and a cross section in a direction perpendicular to the long side direction of the front surface protrudes forward. Since the front portion having a shape is provided, the front surface of the ultrasonic probe is placed in a state where the opening of the puncture cutting portion faces upward as compared with a flat front surface. When the medical instrument is punctured into the body along the bottom of the puncture cut portion while being applied to the body surface, the ultrasonic probe can be easily tilted in a direction perpendicular to the front-rear direction, and the medical instrument with respect to the body surface Can be easily adjusted.

  Further, in the ultrasonic probe, the direction in which the medical instrument is punctured into the body along the bottom of the puncturing notch is parallel to the main axis of the ultrasonic probe. The distance from the probe supporting part to the body surface is shortened compared to using the attachment attached to the side of the medical device as a guide for the medical device and puncturing the medical device in the body at an angle. The medical device can easily reach the target site in the body.

  Note that the ultrasonic probe is provided with a puncture notch for guiding the medical instrument, and the medical instrument remains punctured in the body as compared with the one provided with an insertion hole for inserting the medical instrument. Only the ultrasonic probe can be easily removed, and when a sterilization cover that covers the entire ultrasonic probe is attached, the sterilization cover can be easily attached and detached.

  According to the ultrasonic probe according to the second aspect of the invention, the front portion has a shape in which a cross section in a direction perpendicular to the long side direction of the front surface protrudes forward in an arc shape or a polygon shape. Therefore, when the medical instrument is punctured into the body along the bottom of the puncture cutting portion while the front surface of the ultrasonic probe is applied to the body surface, compared with the case where the front surface is flat, It is easier to tilt the ultrasonic probe in the direction perpendicular to the front-rear direction, and the tilt of the medical instrument relative to the body surface can be adjusted more easily.

  According to the ultrasonic probe according to the third aspect of the invention, the target part detection unit is arranged in a lattice shape from the periphery of the instrument detection unit toward the outside in the long side direction on the front surface of the front part. Therefore, the relative positional relationship between the medical instrument and the target site can be recognized not only in the long side direction but also in the short side direction of the ultrasonic probe.

  According to the ultrasonic probe according to the fourth aspect of the present invention, the ultrasonic probe further includes a control unit that can be controlled to cause each element of the target site detection unit to perform sector scanning. The medical instrument can be punctured into the body while observing the situation widely.

  According to the ultrasonic probe according to the fifth aspect of the present invention, the cutting side engagement portion includes the instrument side engagement so that the inclined surface of the medical instrument faces the opening side of the puncture cutting portion. In order to engage the joint portion, the medical device is prevented from puncturing the medical device in the body in a state where the inclined surface of the medical device faces the side opposite to the opening side of the puncture cutting portion, It is possible to increase the signal intensity of the ultrasonic wave when the instrument detection unit receives the ultrasonic wave returned from the medical instrument.

  According to the ultrasonic probe according to the sixth aspect of the invention, the buffer material is formed by the main body side puncture incision portion among the long sides opposed in the front-rear direction of the front surface of the probe main body. The main body side puncture cut-out portion and the buffer while the front surface of the ultrasonic probe is applied to the body surface because it has a shape that becomes smaller from the longer side to the other long side. When the medical instrument is punctured into the body along the bottom of the side puncture incision part, the medical instrument is punctured while easily maintaining the state in which the ultrasonic probe is tilted in a direction perpendicular to the front-rear direction. can do.

  According to the ultrasonic probe of the seventh invention, since the buffer material is detachably attached to the front surface of the probe body, a plurality of buffer materials having different inclination angles are prepared. It is possible to select and wear an optimal one that matches the puncture target site at the time of use. In addition, when the medical device has a needle shape, a plurality of buffer materials having different cutting widths for the buffer side puncture cutting portion are prepared according to the thickness of the medical device, and the medical device is used at the time of use. You can choose the best fit for the equipment thickness.

  According to the ultrasonic probe according to the eighth aspect of the present invention, since the front surface of the buffer material is flat, the main body side puncture cutout portion while the front surface of the ultrasonic probe is applied to the body surface And when puncturing the medical instrument into the body along the bottom of the buffer-side puncture cut portion, while maintaining the state in which the ultrasonic probe is tilted in the direction perpendicular to the front-rear direction more easily Medical instruments can be punctured.

  According to the ultrasonic probe of the ninth invention, the buffer material has a shape in which a cross section in a direction perpendicular to the long side direction of the front surface of the probe main body protrudes forward. Since it has a front part, the medical device is punctured into the body along the bottom side of the main body side puncture cut portion and the buffer side puncture cut portion while the front surface of the buffer material is applied to the body surface At this time, it is possible to easily adjust the inclination of the medical instrument with respect to the body surface while maintaining the state in which the ultrasonic probe is inclined in the direction perpendicular to the front-rear direction.

  According to the ultrasonic probe according to the tenth aspect of the invention, the target portion detection unit is configured such that each element is a lattice from the periphery of the instrument detection unit toward the outside in the long side direction on the front surface of the ultrasonic probe. Therefore, the relative positional relationship between the medical instrument and the target site can be recognized not only in the long side direction but also in the short side direction of the ultrasonic probe.

  The ultrasonic probe according to the eleventh aspect of the invention further includes a control unit that can be controlled to cause each element of the target part detection unit to perform sector scanning. The medical instrument can be operated while observing the situation widely.

  According to the ultrasonic probe according to a twelfth aspect of the present invention, the main body cutting side engaging portion is configured so that the inclined surface of the medical instrument faces the opening side of the main body side puncturing cutting portion. In order to engage with the instrument side engaging portion, the medical instrument is punctured into the body with the inclined surface of the medical instrument facing away from the opening side of the main body side puncture cutting portion. It is possible to suppress this and increase the signal intensity of the ultrasonic wave when the instrument detection unit receives the ultrasonic wave returned from the medical instrument.

  According to the ultrasonic probe of the thirteenth aspect of the invention, the buffer cut side engaging portion is configured so that the inclined surface of the medical instrument faces the opening side of the buffer side puncture cut portion. In order to engage with the instrument side engaging portion, the medical instrument is punctured into the body in a state where the inclined surface of the medical instrument faces the side opposite to the opening side of the buffer side puncture cutting portion. It is possible to suppress this and increase the signal intensity of the ultrasonic wave when the instrument detection unit receives the ultrasonic wave returned from the medical instrument.

1 is a schematic diagram showing an example of an ultrasound probe 100 according to Embodiment 1 of the present invention, showing a state in which a medical instrument X is inserted through the ultrasound probe 100, and also showing the medical instrument X. FIG. is there. It is a schematic front view which shows an example of the ultrasound probe 100 which concerns on Embodiment 1 of this invention, and shows an example in case each element 11 is arranged in the one-dimensional array form in the long side direction. . It is sectional drawing at the time of cut | disconnecting the ultrasonic probe 100 of FIG. 1 by the AA cutting line, and shows the state which penetrated the medical instrument X in the ultrasonic probe 100 and punctured the medical instrument X in the body. In addition, the medical instrument X, the target site Y, and the body surface Z are shown. It is sectional drawing at the time of cut | disconnecting the ultrasonic probe 100 and medical instrument X of FIG. 2 with a BB cutting | disconnection line, and penetrates the medical instrument X in the body while inserting the medical instrument X in the ultrasonic probe 100. The medical instrument X, the target part Y, and the body surface Z are shown together. It is a schematic front view which shows an example of the ultrasound probe 100 which concerns on Embodiment 1 of this invention, and shows an example when each element 11 is arranged in the shape of a two-dimensional array in the long side direction. . 1 is a schematic plan view showing an example of an ultrasound probe 100 according to Embodiment 1 of the present invention, showing a state in which a medical instrument X is inserted through the ultrasound probe 100, and also showing the medical instrument X It is. 1 is a schematic view showing a part of an ultrasound probe 100 according to Embodiment 1 of the present invention, showing a state in which a medical instrument X is inserted through the ultrasound probe 100, and a substantially outer edge of an instrument detection unit 9; 1 shows an example in which the ultrasonic probe 100 is cut out in the front-rear direction, and the medical instrument X is also shown. (A) shows the state in which the inclined surface S of the medical instrument X faces the opening 7 side of the puncture cutting portion 4, and (b) shows the inclined surface S of the medical instrument X for puncturing. The state which has faced the opposite side to the opening part 7 side of the notch part 4 is shown. It is sectional drawing at the time of cut | disconnecting the ultrasonic probe 200 which concerns on Embodiment 2 of this invention in the approximate center in the front-back direction, and while inserting the medical instrument X in the ultrasonic probe 200, it inserts the medical instrument X in a body. 2 shows the state of puncture, and also shows the medical instrument X, the target site Y, and the body surface Z.

(Embodiment 1)
First, the configuration of the ultrasound probe according to Embodiment 1 of the present invention will be described. The ultrasonic probe 100 according to the present embodiment guides the direction in which the medical instrument X used for the treatment of the target site Y in the body such as a person is punctured into the body, and the medical instrument X that is a front object and By transmitting an ultrasonic wave toward each of the target parts Y and receiving the ultrasonic waves returned from the medical instrument X and the target part Y, respectively, the relative positional relationship between the medical instrument X and the target part Y is determined. It is for recognition. The ultrasonic probe 100 is a so-called ultrasonic transmission / reception element, and functions as an ultrasonic transmission element, that is, a function of transmitting an ultrasonic wave of a certain frequency when an electric signal of a certain frequency is input, and an ultrasonic reception. It has both the function of an element, that is, the function of outputting an electrical signal of a certain frequency when receiving an ultrasonic wave of a certain frequency. The medical instrument X is a long, particularly needle-shaped instrument such as an injection needle, biopsy needle, biopsy, forceps, or laser knife.

  As shown in FIG. 1, the ultrasonic probe 100 has a substantially rectangular parallelepiped shape, and a cross section in a direction perpendicular to the long side direction of the front surface 3 having a substantially rectangular shape is an arc shape toward the front. And a rear portion 2 connected to the front portion 1 from the rear and having a substantially rectangular parallelepiped shape. As described above, the ultrasonic probe 100 has the front surface 3 protruding forward in an arc shape in the short side direction. The rear portion 2 has an ultrasonic absorber and is a damper for absorbing the ultrasonic wave propagated backward among the ultrasonic waves transmitted from the ultrasonic probe 100.

  The ultrasonic probe 100 inserts the medical instrument X from the vicinity of the center of the back surface (not shown), which is the surface facing the front surface 3, so that the medical instrument X can be pushed out from the vicinity of the center of the front surface 3 to the outside. The puncture cut portion 4 is further provided. The puncture cutting portion 4 is formed from the approximate center of the upper surface side long side 5 on the front surface 3 of the front portion 1 toward the bottom surface side long side 6 which is the long side facing the upper surface side long side 5, The slits are formed to communicate from the front surface 3 to the back surface, that is, from the front end to the rear end of the ultrasonic probe 100. Thereby, the medical instrument X inserted from the vicinity of the center of the back surface of the ultrasonic probe 100 in the state where the opening 7 of the puncture cutting portion 4 is directed upward, along the bottom portion 8 of the puncture cutting portion 4. By pushing forward, the insertion direction of the medical instrument X in the ultrasonic probe 100 and the puncture direction into the body can be guided.

  The ultrasonic probe 100 transmits ultrasonic waves toward the medical instrument X on the front surface 3 of the front portion 1 and receives the ultrasonic waves returned from the medical instrument X, whereby the ultrasonic probe 100 is received. The device further includes a device detection unit 9 that can acquire position information of the medical device X to be inserted into the device. The ultrasonic probe 100 includes a plurality of elements 11 that transmit ultrasonic waves toward the target site Y and receive the ultrasonic waves returned from the target site Y on the front surface 3 of the front portion 1. Therefore, the target part detection part 10 which can acquire the positional information on the target part Y in the body is further provided. In addition, as shown in FIG. 2, the ultrasound probe 100 further includes a control unit 12 that can control each element 11 of the instrument detection unit 9 and the target site detection unit 10. The control unit 12 is electrically connected to a display unit 13 for displaying the electric signal output from the control unit 12 so as to be visible. The display unit 13 is, for example, a liquid crystal display, and is electrically connected to the appliance detection unit 9 and each element 11 via the control unit 12. Thereby, each electric signal output via the control part 12 from the instrument detection part 9 and each element 11 is displayed on the same screen.

  The instrument detection part 9 is an area formed around the bottom part 8 of the puncture cutting part 4 on the front surface 3 of the front part 1.

  The target part detection unit 10 is an area formed on both sides of the long side direction with respect to the instrument detection unit 9 on the front surface 3 of the front part 1.

  As shown in FIG. 2, each element 11 is formed in a long and narrow shape with the short side direction of the front surface 3 as the long direction, and is arranged in the long side direction of the front surface 3 in the target part detection unit 10.

  The control unit 12 is electrically connected to the instrument detection unit 9 and each element 11. The control unit 12 is a time from when one of the instrument detection unit 9 and each of the elements 11 transmits an ultrasonic wave toward a front object until it receives the ultrasonic wave returned from the object. The response time is measured, and the distance from the instrument detection unit 9 and each element 11 to the object is determined according to the response time. Specifically, when the response time is short, the control unit 12 determines that the distance from the instrument detection unit 9 and each element 11 to the target object is shorter than when the response time is long. According to the result of this determination, the control unit 12 outputs information indicating the distance from the device detection unit 9 and each element 11 to the object to the display unit 13.

  In addition, the control unit 12 transmits the ultrasonic wave from one of the instrument detection unit 9 and each element 11 toward the front object separated by a predetermined distance, and then returns the ultrasonic wave returned from the target object. When a predetermined time set as a sufficient time until the sound wave is received has elapsed, another one of the instrument detection unit 9 and each element 11 transmits the ultrasonic wave toward the front object. The instrument detector 9 and each element 11 can be sequentially controlled. Thereby, it is suppressed that the ultrasonic waves transmitted from the different instrument detection units 9 or the elements 11 are simultaneously propagated. Furthermore, the control unit 12 measures the time until the ultrasonic wave transmitted from the instrument detection unit 9 or the element 11 is received by the same instrument detection unit 9 or the element 11. For this reason, according to the instrument detection part 9 and the position of each element 11, the instrument detection part 9 differs in the position arrange | positioned in the plane substantially parallel to the front surface 3, ie, a plane perpendicular | vertical to the front-back direction. And the position of the target object which exists in front of each element 11 can be specified. Therefore, the control unit 12 measures the depth in the front-rear direction of the position of the object specified on the plane perpendicular to the front-rear direction, and displays information indicating the result of the measurement on the display unit 13. Can be output.

  Next, the procedure for using the ultrasound probe 100 according to Embodiment 1 of the present invention, its operation, and its effects will be described. When the ultrasonic probe 100 is used, the user first has the ultrasonic probe 100 in a state in which the medical instrument X is not inserted in a state in which the opening 7 of the puncture cutting portion 4 faces upward. Is pressed against the patient's body surface Z. In this state, when an electrical signal having a predetermined frequency is input to the ultrasonic probe 100, transmission of ultrasonic waves from the ultrasonic probe 100 is started. More specifically, as shown in FIG. 4, the ultrasonic waves A are mainly transmitted straight forward from each element 11 of the target part detection unit 10, while the instrument detection unit 9 having a wide directivity travels straight ahead. The ultrasonic wave B is transmitted not only in the front ultrasonic wave but also obliquely forward.

  Thereafter, the ultrasonic wave A transmitted from the target part detection unit 10 is reflected by the target part Y, and the reflected wave C is received by the target part detection unit 10, so that the target part detection unit 10 becomes the reflected wave C. Outputs electrical signals with the same frequency. This electric signal is sent to the display unit 13 via the control unit 12, and an ultrasonic image based on the electric signal is displayed on the display unit 13.

  At this time, the ultrasonic wave transmitted from the instrument detection unit 9 is reflected by the target site Y with respect to the ultrasonic wave transmitted forward and the reflected wave is received by the instrument detection unit 9. However, since the ultrasonic wave B transmitted diagonally forward has not yet been inserted into the puncture cutting part 4 as described above, the tool detection unit 9 uses the ultrasonic wave D that wraps around the medical tool X. And none of the ultrasound E returning from the medical device X is received. Therefore, in the ultrasonic image, an image displayed when the instrument detection unit 9 receives either the ultrasound D that passes around the medical instrument X or the ultrasound E that returns from the medical instrument X does not appear. In addition, the ultrasonic wave D transmitted from the instrument detection unit 9 and wrapping around the medical instrument X and the ultrasonic wave E returning from the medical instrument X are collectively referred to as an ultrasonic wave returning from the medical instrument X.

  Next, the user inserts the medical instrument X into the puncture notch 4 of the ultrasonic probe 100 and further inserts the tip of the medical instrument X from the body surface Z into the body. At this time, the ultrasonic wave A transmitted from the target part detection unit 10 is reflected by the target part Y, and the reflected wave C is received by the target part detection unit 10 as described above. On the other hand, the ultrasonic wave B transmitted obliquely forward from the device detection unit 9 wraps around the medical device X inserted into the body or returns from the medical device X, and the ultrasonic wave D and the target object wrapping around the medical device X The ultrasonic wave E returning from is received by the instrument detection unit 9. For this reason, the user can visually confirm the image displayed when the instrument detection unit 9 receives the ultrasound returned from the medical instrument X by looking at the ultrasound image.

  Thereafter, when the user operates the medical instrument X and stabs it deeper into the body, the distance from the instrument detection unit 9 to the tip of the medical instrument X increases accordingly, and the instrument detection unit 9 generates the ultrasonic wave B. It takes a long time to transmit the ultrasonic waves D and E after transmitting. For this reason, the user sees the ultrasonic image, so that the time when the instrument detection unit 9 receives the ultrasonic waves D and E returned from the medical instrument X is gradually delayed. It is possible to visually confirm an image indicating that the body is gradually inserted into a deeper part of the body.

  Next, as shown in FIG. 4, when the tip of the medical instrument X reaches the target part Y, the time from when the instrument detection unit 9 transmits the ultrasonic wave B until the reception of the ultrasonic waves D and E is the target part. The time from when the detecting unit 10 transmits the ultrasonic wave A to when the reflected wave C is received is approximately equal. For this reason, the user can recognize that the tip of the medical instrument X has reached the target site Y by looking at the ultrasonic image. Thus, the user can recognize the relative positional relationship between the distal end of the medical instrument X and the target part Y in the insertion direction of the medical instrument X, so that the user uses the medical instrument X to determine the target part Y. The procedure can be performed accurately.

  In particular, according to the ultrasonic probe 100, the ultrasonic probe 100 has a substantially rectangular parallelepiped shape, and a shape in which a cross section in a direction perpendicular to the long side direction of the front surface 3 protrudes forward. Therefore, the ultrasonic probe 100 in a state in which the opening 7 of the puncture cut-in portion 4 faces upward as compared with a flat front surface 3. When the medical instrument X is punctured into the body along the bottom part 8 of the puncture cutting part 4 while the front surface 3 of the sword is applied to the body surface Z, the ultrasonic probe 100 can be easily tilted in the direction perpendicular to the front-rear direction. The inclination of the medical device X with respect to the body surface Z can be easily adjusted. Therefore, as shown in FIG. 3, even when the target site Y is a blood vessel such as a jugular vein that has a linear shape substantially parallel to the body surface Z, the medical instrument X is inserted into the blood vessel. According to the ultrasonic probe 100, the inclination of the medical instrument X with respect to the body surface Z can be easily adjusted, and the medical instrument X can be easily inserted into the blood vessel.

  Further, in the ultrasonic probe 100, the direction in which the medical instrument X is punctured into the body along the bottom 8 of the puncture cutting portion 4 is parallel to the main axis of the ultrasonic probe 100. Compared with the case where the attachment attached to the side surface of the probe is used as a guide for the medical instrument X and the medical instrument X is punctured into the body in an oblique direction, the ultrasonic probe 100 supports the medical instrument X. The distance from the body surface Z to the body surface Z can be shortened, and the medical instrument X can easily reach the target site Y in the body.

  The ultrasonic probe 100 is provided with the puncture cutting portion 4 for guiding the medical instrument X, and the medical instrument X is inserted into the body as compared with the one provided with the insertion hole through which the medical instrument X is inserted. Only the ultrasonic probe 100 can be easily removed with the puncture of the probe, and when a sterilization cover that covers the entire ultrasonic probe 100 is attached, the sterilization cover can be easily attached and detached. it can.

  In the present embodiment, the ultrasound probe 100 has a shape in which a cross section in a direction perpendicular to the long side direction of the front surface 3 having a substantially rectangular shape projects in an arc shape toward the front. Although the example in case the part 1 is provided was demonstrated, this invention is not limited to this. For example, the ultrasonic probe 100 includes a front portion 1 having a shape in which a cross section in a direction perpendicular to the long side direction of the front surface 3 having a substantially rectangular shape projects in a polygonal shape toward the front. May be. That is, the ultrasound probe 100 may be one in which the front surface 3 projects in a polygonal shape in the short side direction.

  Further, in the present embodiment, an example in which a plurality of elements 11 are arranged only in the long side direction of the front surface 3 in the target part detection unit 10 has been described, but the present invention is not limited to this. Absent. For example, as shown in FIG. 5, the elements 11 are arranged in a lattice shape, that is, in a two-dimensional array from the periphery of the instrument detection unit 9 toward the outside in the long side direction on the front surface 3 of the front portion 1. It may be a thing. With this configuration, the target part detection unit 10 recognizes the relative positional relationship between the medical instrument X and the target part not only in the long side direction of the ultrasonic probe 100 but also in the short side direction. be able to.

Further, in the present embodiment, the control unit 12 transmits the ultrasonic wave toward the front object separated by a predetermined distance from one of the instrument detection unit 9 and each element 11, and then the target object. When a predetermined time set as a sufficient time until receiving the ultrasonic wave returned from the point of time passes, another one of the instrument detection unit 9 and each element 11 is superposed toward the front object. Although an example in which the instrument detection unit 9 and all the elements 11 can be sequentially controlled so as to transmit sound waves has been described, the present invention is not limited to this. For example, as shown in FIG. 6, the control unit 12 transmits ultrasonic waves to 1 to N elements 11 toward the front object that the elements 11 are separated by a predetermined distance, and then Each time is less than a sufficient time until the ultrasonic wave returned from the object is received, and a slight delay time of τ _{1 to} τ _n is provided. A method for controlling the element 11 to sequentially transmit ultrasonic waves toward the object, that is, controlling the phase of the ultrasonic wave transmitted by each element 11 and setting the angle in the traveling direction of the ultrasonic wave with respect to the front-rear direction. It may be possible to perform control by sector scanning, which is a method of providing it. With such a configuration, the ultrasonic wave transmitted from each element 11 has a wavefront synthesized in a direction inclined with respect to the front-rear direction, and a synthesized wave is transmitted with a predetermined angle. For this reason, the user can observe the medical instrument while observing in the scanning range R, which is a range extending over such an object, even if the object is located only in front of the instrument detection unit 9. X can be punctured into the body.

  Further, as the medical instrument X used in the present embodiment, as shown in FIGS. 7A and 7B, a needle-like medical instrument X having an inclined surface S inclined from the axis formed from the tip is used. When used, the medical instrument X inserted from the vicinity of the center of the back surface of the ultrasound probe 100 is pushed forward along the bottom 8 of the puncture cutting portion 4 and pushed out from the vicinity of the center of the front surface 3 to the outside. In the state, as shown in FIG. 7 (a), when the inclined surface S faces the opening 7 side of the puncturing cut portion 4, as shown in FIG. The signal intensity of the ultrasonic wave when the device detection unit 9 receives the ultrasonic wave returned from the medical device X is stronger than when facing the side opposite to the opening 7 side of the puncture cutting portion 4. can do. Therefore, the ultrasonic wave reception sensitivity of the instrument detection unit 9 can be improved. This is because when the inclined surface S of the medical instrument X faces the opening 7 side, the surface area of the instrument detection unit 9 in the vicinity of the distal end of the medical instrument X is opposite to the inclined surface S from the opening 7 side. This is because it is larger than when facing the side. For this reason, when puncturing the medical instrument X into the body, it is desirable to puncture the medical instrument X into the body so that the inclined surface S of the medical instrument X faces the opening 7 side. Then, while providing the instrument side engaging part in the said medical instrument X, it is a notch side engaging part engaged with the said instrument side engaging part in the notch part 4 for puncture, Comprising: The said notch side engagement The portion may be provided with a cut-side engagement portion that engages with the device-side engagement portion so that the inclined surface S of the medical device X faces the opening 7 side of the puncture cut-out portion 4. For example, when the medical instrument X has an elongated cylindrical shape, a planar cut surface is provided by cutting the medical instrument X in the axial direction, and this cut surface is used as the instrument side engaging portion. The puncture cut portion 4 may be provided with the cut side engagement portion in which the bottom portion 8 of the puncture cut portion 4 is planar so as to be engageable with the side engagement portion. With such a configuration, the planar instrument-side engaging portion provided in the medical instrument X is brought into contact with the planar incision-side engaging portion provided in the bottom 8 of the puncture cutting portion 4. However, the medical instrument X is inserted from the vicinity of the center of the back surface of the ultrasonic probe 100 and pushed forward along the bottom portion 8 of the puncture cutting portion 4 and pushed outward from the center of the front surface 3 to the outside. The medical instrument X can be inserted into the ultrasonic probe 100 and punctured into the body while the inclined surface S of the instrument X is directed toward the opening 7 of the puncture cutting portion 4. Or while providing the said instrument side engaging part which consists of a convex part or a recessed part in the medical instrument X, the said notch which consists of the recessed part or convex part which can be engaged with the said instrument side engaging part in the notch part 4 for puncture The insertion side engaging part may be provided.

(Embodiment 2)
Hereinafter, the configuration of the ultrasound probe 200 according to Embodiment 2 of the present invention will be described. In the first embodiment, a description will be given of an ultrasonic probe 100 of a type that does not require a member to be interposed between the ultrasonic probe 100 and the body surface Z when the ultrasonic probe 100 is used. did. In contrast, in the second embodiment, when the ultrasonic probe 200 is used, a type of ultrasonic probe 200 in which a member is interposed between the ultrasonic probe 200 and the body surface Z. Will be described.

  The ultrasonic probe 200 according to the present embodiment includes a probe main body 14 that substantially corresponds to the ultrasonic probe 100, and the probe main body 14 when the ultrasonic probe 200 is used. The probe body 14 is provided with a buffer member 15 interposed between the body surface Z and the probe main body 14 has a substantially rectangular shape at the front portion like the front portion 1 of the ultrasonic probe 100. The ultrasonic probe 100 differs from the ultrasonic probe 100 in that the cross section in the direction perpendicular to the long side direction of the front surface 3 does not need to have a shape projecting in an arc shape toward the front. Except for these points, the ultrasound probe 200 has the same configuration as the ultrasound probe 100.

  As shown in FIG. 8, the ultrasonic probe 200 includes a probe main body 14 having a substantially rectangular parallelepiped shape, and a buffer material 15 attached to the front surface 16 of the probe main body 14. It has.

  The probe body 14 is formed so that the medical instrument X can be inserted from the vicinity of the center of the back surface 17, which is a surface facing the front surface 16, and the medical instrument X can be pushed outward from the vicinity of the center of the front surface 16. A main body side puncture cut portion 18 is provided. The main body side puncture cutting portion 18 is formed on the front surface 16 of the probe main body 14 from the approximate center of the long side on the upper surface side (not shown) to the long side on the bottom surface side (not shown) which is the long side facing the long side on the upper surface side. The slit is formed from the front surface 16 to the rear surface 17, that is, from the front end to the rear end of the ultrasonic probe 200. Thereby, in a state where the opening 19 of the main body side puncture cutting portion 18 is directed upward, the medical instrument X inserted from the vicinity of the center of the back surface 17 is moved forward along the bottom portion 20 of the main body side puncture cutting portion 18. The insertion direction of the medical instrument X in the ultrasonic probe 200 and the puncture direction into the body can be guided.

  The probe main body 14 transmits ultrasonic waves toward the medical instrument X on the front surface 16 of the probe main body 14 and receives the ultrasonic waves returned from the medical instrument X, so that the ultrasonic probe is detected. An instrument detection unit 9 that can acquire position information of the medical instrument X to be inserted into the child 200 is further provided. The probe main body 14 transmits ultrasonic waves toward the target site Y on the front surface 16 of the probe main body 14 and receives the ultrasonic waves returned from the target site Y from the plurality of elements 11. Thus, it further includes a target part detection unit 10 that can acquire position information of the target part Y in the body. The instrument detection unit 9 and the target part detection unit 10 have the same configuration as the instrument detection unit 9 and the target part detection unit 10 in the first embodiment. In addition, in order to absorb the ultrasonic wave propagated backward among the ultrasonic waves transmitted from the probe main body 14, the rear portion of the probe main body 14 may have an ultrasonic absorber.

  The buffer material 15 has a thickness in the front-rear direction from the long side facing the front surface 16 of the probe main body 14 to the other long side from the long side where the main body side puncture cut portion 18 is formed. It has a shape that becomes smaller. For example, the buffer material 15 has a substantially triangular prism shape having a substantially rectangular surface 21, and the substantially rectangular surface 21 is attached to the front surface 16 of the probe body 14.

  In addition, the buffer material 15 communicates with the main body side puncture cut portion 18, and has a buffer side puncture cut portion 22 formed to communicate from the front end to the rear end at substantially the center of the buffer material 15. ing.

  With this configuration, the buffer material 15 has a thickness in the front-rear direction from the long side of the long side facing the front surface 16 of the probe main body 14 where the main body side puncture cut portion 18 is formed. Since it has a shape that becomes smaller toward the other long side, in the state in which the openings 19 and 23 of the main body side puncture cut portion 18 and the buffer side puncture cut portion 22 face upward, When the medical instrument X is punctured into the body along the bottom portions 20 and 24 of the main body side puncture notch 18 and the buffer side puncture notch 22 while the front surface of the acoustic probe 200 is applied to the body surface Z, The medical instrument X can be punctured while easily maintaining the state in which the ultrasonic probe 200 is tilted in the direction perpendicular to the front-rear direction.

  The buffer material 15 is either formed integrally with the probe main body 14 or is detachably attached to the front surface 16 of the probe main body 14. Also good. When the buffer material 15 is detachably attached to the front surface 16 of the probe body 14, a plurality of buffer materials 15 having different inclination angles are prepared, and the puncture target site Y is used at the time of use. You can choose the best fit for you. In addition, when the medical instrument X has a needle shape, a plurality of buffer members 15 having different cutting widths of the buffer side puncture cutting part 22 according to the thickness of the medical instrument X are prepared. At the time of use, it is possible to select and wear an optimal one that matches the thickness of the medical instrument X.

  The buffer material 15 has a flat front surface 25. With such a configuration, the medical instrument along the bottom portions 20 and 24 of the main body side puncture cut portion 18 and the buffer side puncture cut portion 22 while the front surface 25 of the ultrasonic probe 200 is applied to the body surface Z. When puncturing X into the body, the medical instrument X can be punctured while maintaining the state in which the ultrasonic probe 200 is tilted in a direction perpendicular to the front-rear direction more easily.

  In addition, the buffer material 15 is preferably made of a material that has good acoustic impedance matching with a living body and has a sound velocity close to that of the living body. The speed of sound here refers to the traveling speed of the ultrasonic wave when the ultrasonic wave propagates through the buffer material 15 or an object such as a living body. It is desirable to reduce the difference in acoustic impedance between the buffer material 15 and the living body. Thereby, reflection of an ultrasonic wave can be suppressed in both contact surfaces. Further, when the sound speeds of the buffer material 15 and the living body are different, the control unit 12 uses the buffer when measuring the distances from the instrument detection unit 9 and the target part detection unit 10 to the medical instrument X and the target part Y, respectively. It is desirable to measure the distance while correcting the influence of the difference in sound speed between the material 15 and the living body.

  In the present embodiment, the buffer material 15 has been described as an example in which the front surface 25 has a planar shape, but the present invention is not limited to this. For example, the buffer material 15 has a front portion 26 having a shape in which a cross section in a direction perpendicular to the long side direction of the front surface 16 of the probe body 14 protrudes forward. May be. With such a configuration, the medical device X is placed in the body along the bottom portions 20 and 24 of the main body side puncture cut portion 18 and the buffer side puncture cut portion 22 while the front surface 25 of the buffer material 15 is applied to the body surface Z. When puncturing, the inclination of the medical instrument X with respect to the body surface Z can be easily adjusted while maintaining the state in which the ultrasonic probe 200 is inclined in the direction perpendicular to the front-rear direction.

  Further, in the present embodiment, an example in which a plurality of elements 11 are arranged only in the long side direction of the front surface 16 in the target part detection unit 10 has been described, but the present invention is not limited to this. Absent. For example, as shown in FIG. 5, the elements 11 are arranged in a lattice shape, that is, in a two-dimensional array from the periphery of the instrument detection unit 9 toward the outside in the long side direction on the front surface 16 of the probe body 14. It may be a thing. With such a configuration, the target part detection unit 10 recognizes the relative positional relationship between the medical instrument X and the target part not only in the long side direction of the ultrasonic probe 200 but also in the short side direction. be able to.

  Further, as described in the first embodiment, also in the present embodiment, the control unit 12 is configured so that one of the instrument detection unit 9 and each element 11 faces a front object that is separated by a predetermined distance. When a predetermined time set as a sufficient time from the transmission of the ultrasonic wave to the reception of the ultrasonic wave returned from the target object has elapsed, of the instrument detection unit 9 and each element 11 It is not limited to one that can sequentially control all of the instrument detection unit 9 and each element 11 such that another one transmits an ultrasonic wave toward a front object. For example, the control unit 12 may be capable of controlling each element 11 by the sector scanning.

  Further, as described in the first embodiment, the present embodiment is also the case where the needle-like medical instrument X is used as the medical instrument X as shown in FIGS. 7 (a) and (b). Thus, when using the medical instrument X in which the inclined surface S inclined with respect to the axis of the medical instrument X is formed from the tip, the instrument side engaging portion is provided on the medical instrument X, and the main body side puncture The insertion portion 18 is a main body cutting side engaging portion that engages with the instrument side engaging portion, and the main body cutting side engaging portion is configured so that the inclined surface S of the medical instrument X is a main body side puncture cutting portion. You may provide the main body cutting side engaging part engaged with the instrument side engaging part so that the opening part 19 side of the insertion part 18 may face. For example, when the medical instrument X has an elongated cylindrical shape, a planar cut surface is provided by cutting the medical instrument X in the axial direction, and this cut surface is used as the instrument side engaging portion. The main body incision portion 18 may be provided with the main body incision portion that makes the bottom portion 20 of the main body side puncture cut portion 18 flat so as to be engageable with the side engagement portion. With such a configuration, the planar instrument-side engagement portion provided in the medical instrument X is replaced with the planar body-cutting-side engagement portion provided at the bottom 20 of the body-side puncture cutting portion 18. While abutting, the medical instrument X is inserted from the vicinity of the center of the back surface 17 of the ultrasonic probe 200 and pushed forward along the bottom portion 20 of the main body side puncture notch 18 so as to be outward from the vicinity of the center of the front surface 16. The medical instrument X can be inserted into the ultrasonic probe 200 and punctured into the body while the inclined surface S of the medical instrument X is directed toward the opening 19 side of the main body side puncture notch 18. it can. Or while providing the said instrument side engaging part which consists of a convex part or a recessed part in the medical instrument X, it consists of the recessed part or convex part which can be engaged with the said instrument side engaging part in the main body side puncture cutting part 18 The main body cut side engaging portion may be provided.

  Furthermore, in the present embodiment, the medical instrument X is provided with an instrument side engaging part, and the buffer side puncture notch part 22 is provided with a buffer notch side engaging part that engages with the instrument side engaging part. The buffer cutting side engaging portion is a buffer that engages with the instrument side engaging portion so that the inclined surface S of the medical device X faces the opening 23 side of the buffer side puncturing cut portion 22. A cut-side engaging portion may be provided. For example, when the medical instrument X has an elongated cylindrical shape, a planar cut surface is provided by cutting the medical instrument X in the axial direction, and this cut surface is used as the instrument side engaging portion. The buffer cut side engaging portion 22 may be provided with the buffer cut side engaging portion, which has a flat bottom 24 of the buffer side puncturing cut portion 22 so as to be engageable with the side engaging portion. With such a configuration, the planar instrument-side engaging portion provided in the medical instrument X is replaced with the planar buffer-cutting-side engaging portion provided at the bottom 24 of the buffer-side puncture notching portion 22. While abutting, the medical instrument X is inserted from the vicinity of the center of the back surface 17 of the ultrasonic probe 200 and pushed forward along the bottom 24 of the buffer side puncture notch 22 to move outward from the vicinity of the center of the front surface 16. The medical instrument X can be inserted into the ultrasonic probe 200 and punctured into the body while the inclined surface S of the medical instrument X is directed toward the opening 23 side of the buffer-side puncture notch 22. it can. Or while providing the instrument side engaging part which consists of a convex part or a recessed part in the medical instrument X, it consists of the recessed part or convex part which can be engaged with the said instrument side engaging part in the notch part 22 for buffer side punctures. The buffer cut side engaging portion may be provided.

  In addition, embodiment of this invention is not restricted to the above-mentioned form, In the range which does not deviate from the range of the thought of this invention, it can change suitably.

  The ultrasonic probes 100 and 200 according to the present invention guide a medical instrument X used for treatment of a target site Y in a body such as a person and transmit ultrasonic waves toward a front object. The ultrasonic probes 100 and 200 that receive the ultrasonic waves returned from the object can be used.

DESCRIPTION OF SYMBOLS 100,200 Ultrasonic probe 1 Front part 3,16 Front surface 4 Puncture cutting part 9 Instrument detection part 10 Target site | part detection part 11 Element 14 Probe main body 15 Buffer material 18 Main body side puncture cutting part 22 Buffer Side puncture notch X Medical instrument Y Target site A to E Ultrasound

Claims (13)

An ultrasonic probe that guides a medical instrument used for treatment of a target site in the body by puncturing the body, transmits an ultrasonic wave toward a front object, and receives the ultrasonic wave returned from the target object A child,
The ultrasonic probe has a substantially rectangular parallelepiped shape, a front portion having a shape in which a cross section in a direction perpendicular to the long side direction of the front surface protrudes forward,
It is formed in the short side direction from the approximate center of any one of the long sides opposed to the front surface of the front part and is formed to communicate from the front end to the rear end of the ultrasonic probe, A puncture notch for guiding a medical instrument;
An instrument detection unit that is formed around the puncture incision part on the front surface of the front part, transmits ultrasonic waves toward the medical instrument, and receives the ultrasonic waves returned from the medical instrument;
A plurality of the ultrasonic sensors arranged on the front surface of the front part from the periphery of the instrument detection part toward the outside in the long side direction, transmitting ultrasonic waves toward the target part, and receiving the ultrasonic waves returned from the target part An ultrasonic probe comprising a target part detection unit made of an element.   2. The ultrasonic probe according to claim 1, wherein the front portion has a shape in which a cross section in a direction perpendicular to a long side direction of a front surface protrudes forward in an arc shape or a polygon shape. Child.   3. The target portion detection unit according to claim 1, wherein each of the elements is arranged in a lattice shape from the periphery of the instrument detection unit toward the outside in the long side direction on the front surface of the front part. The ultrasonic probe according to Crab.   The ultrasonic probe according to claim 1, further comprising a control unit that can be controlled to cause each element of the target region detection unit to perform sector scanning. The puncture notch has a notch-side engaging portion that can be engaged with an instrument-side engaging portion provided in a needle-like medical instrument having an inclined surface inclined with respect to an axis formed from the tip. ,
The said cutting side engaging part engages with the said instrument side engaging part so that the said inclined surface of the said medical device may face the opening part side of the said puncture cutting part. 4. The ultrasonic probe according to any one of 4 above. An ultrasonic probe that guides a medical instrument used for treatment of a target site in the body by puncturing the body, transmits an ultrasonic wave toward a front object, and receives the ultrasonic wave returned from the target object A child,
The ultrasonic probe includes a probe body having a substantially rectangular parallelepiped shape, and a buffer material attached to the front surface of the probe body,
The probe main body is formed in a short side direction from substantially the center of one of the long sides facing each other on the front surface of the probe main body and communicates from the front end to the rear end of the probe main body. A main body side puncture notch for guiding the medical instrument,
An instrument detection unit that is formed around the main body side puncture cut portion on the front surface of the probe main body, transmits ultrasonic waves toward the medical instrument, and receives the ultrasonic waves returned from the medical instrument When,
Arranged on the front surface of the probe main body from the periphery of the instrument detection unit toward the outside in the long side direction, transmits ultrasonic waves toward the target site, and receives the ultrasonic waves returned from the target site. A target part detection unit comprising a plurality of elements,
The buffer material has a thickness in the front-rear direction from the long side of the long side facing the front surface of the probe main body to the other long side where the main body side puncture cut portion is formed. It has a reduced shape, and has a buffer-side puncture incision portion formed in communication with the main body-side puncture cut portion and communicated from the front end to the rear end of the buffer material. An ultrasonic probe.   The ultrasonic probe according to claim 6, wherein the buffer material is detachably attached to a front surface of the probe main body.   The ultrasonic probe according to claim 6, wherein the buffer material has a flat front surface.   The said buffer material has the front part which has the shape where the cross section of the direction perpendicular | vertical to the long side direction of the front surface of the said probe main body protruded ahead. Or the ultrasonic probe in any one of 7.   The said target site | part detection part, The said each element is arranged in the grid | lattice form toward the outer side of a long side from the circumference | surroundings of the said instrument detection part in the front surface of the said ultrasonic probe. The ultrasonic probe according to any one of 9.   The ultrasonic probe according to claim 6, further comprising a control unit that can be controlled to cause each element of the target region detection unit to perform sector scanning. The main body side puncture cut portion is a main body cut side engagement portion that can be engaged with a device side engagement portion provided in a needle-like medical device having an inclined surface inclined with respect to an axis formed from the tip. Have
The main body cutting side engaging portion engages with the instrument side engaging portion so that the inclined surface of the medical instrument faces the opening side of the main body side puncturing cut portion. Item 12. The ultrasonic probe according to any one of Items 6 to 11. The buffer side puncture cut portion is a buffer cut side engagement portion that can be engaged with a device side engagement portion provided in a needle-like medical device having an inclined surface inclined with respect to an axis formed from the tip. Have
The buffer cut-side engagement portion engages with the device-side engagement portion so that the inclined surface of the medical device faces the opening side of the buffer-side puncture cut portion. Item 13. The ultrasonic probe according to any one of Items 6 to 12.

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