JP2007068989A - Ultrasonic diagnostic apparatus, ultrasonic probe, and puncture adapter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus having a separate-type puncture adapter for guiding a puncturing needle in puncture to be attached before use, which enables easy disinfection, easy sterilization and inexpensive production of its needle guiding part, its ultrasonic probe and its puncture adapter. <P>SOLUTION: This ultrasonic diagnostic apparatus is provided with an ultrasonic probe, a puncture adapter which is attached to the ultrasonic probe so as to hold a puncturing needle and is equipped with a moving member that moves along with the puncturing needle against the ultrasonic probe, and a sensor placed in the ultrasonic probe so as to detect the position of the moving member. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to an ultrasonic diagnostic apparatus, a puncture ultrasonic probe, and a puncture adapter that are used when a puncture needle is inserted using a puncture adapter attached to an ultrasonic probe.

When inserting a puncture needle into a patient, a puncture is often performed using an ultrasonic diagnostic apparatus while observing the patient's biological tomographic image and the inserted needle image. In this puncture technique, a puncture adapter is generally used as an ultrasonic probe, and a puncture needle is inserted using a puncture marker image displayed on a monitor as a guide. As one of the methods, there is a method in which the puncture adapter is fixed at a predetermined position of the body of the ultrasonic probe. In this method, a puncture needle guide attached to a slider that slides inside the puncture adapter 51 is fixed with a screw or the like, and an angle indicated on the scale of this adapter is read and set as a puncture marker display angle of the ultrasonic diagnostic apparatus. To do. With this setting, a puncture marker image is displayed on the ultrasonic tomographic image displayed on the monitor. In the structure of reading and setting in this way, it is necessary to reset the puncture marker display angle of the ultrasonic diagnostic apparatus each time the puncture angle is changed, which is very complicated.

On the other hand, the angle of the puncture needle guide described above may be detected by a sensor provided in the puncture adapter, and the detection result may be transmitted to the processing unit of the ultrasonic diagnostic apparatus (see, for example, Patent Document 1).
). The sensor for detecting the angle of the puncture needle guide is a portion near the portion where the puncture needle guide of the puncture adapter body moves or a portion where the extension terminal connected to the puncture needle guide moves (for example,
6 and 7 of Patent Document 1) and detects the angle of the puncture needle guide directly or indirectly. The detected electrical signal is transmitted to the ultrasonic diagnostic apparatus, and is automatically changed and displayed on the ultrasonic tomographic image displayed on the monitor in accordance with the angle detected by the puncture marker image.
JP 2004-305535 A

However, the puncture adapter having the structure provided with this sensor is generally a retrofitting type in which the puncture adapter itself is separated from the ultrasonic probe.

Therefore, a means for transmitting the detected electric signal to the apparatus main body is required. For example, when the connection to the apparatus main body is made together with the cable of the ultrasonic probe, it is necessary to connect the signal cable drawn from the sensor of the puncture adapter to the ultrasonic probe through means such as a connector. . Further, when connecting a signal cable of a different system to the apparatus main body, the number of cables increases and the operability is impaired, and a new connector for puncturing must be provided in the apparatus main body.

In addition, the part that guides the needle of the puncture adapter guides the needle to be inserted into the living body,
The body fluid and tissue of the subject adhere as the needle is inserted and removed. For this reason, the needle guide part of the puncture adapter needs to be sterilized and sterilized every time it is used, or needs to be disposable. But,
When the above-described sensor is used, the structure becomes complicated and disinfection / sterilization becomes difficult. Further, since the sensor is provided, the puncture adapter becomes expensive, and it is not realistic to make it disposable.

In the operation of a puncture needle using the conventional puncture adapter described above, in order to display the puncture direction of the puncture needle as a puncture marker, a structure / method for setting to read or a structure / method for providing a sensor to the puncture adapter In any case, there is a problem that the angle setting or the handling of disinfection / sterilization becomes complicated.

The present invention has been made in view of the above-mentioned problems, and is a separation-type retrofitting type puncture adapter that guides the insertion of a puncture needle, and is easy to disinfect and sterilize, or the needle guide portion is inexpensive. An object is to provide an ultrasonic diagnostic apparatus, an ultrasonic probe, and a puncture adapter.

In order to solve the above-described problems, an ultrasonic diagnostic apparatus of the present invention includes an ultrasonic probe and a movement that is attached to the ultrasonic probe to hold the puncture needle and moves with the puncture needle with respect to the ultrasonic probe. A puncture adapter comprising a member, and provided in the ultrasonic probe,
And a sensor for detecting the position of the moving member.

In addition, the ultrasonic probe of the present invention includes a puncture adapter that is attached to hold the puncture needle and includes a moving member that moves together with the puncture needle, and a sensor that detects the position of the moving member. It is characterized by.

Further, the puncture needle adapter of the present invention includes a holding means for holding the puncture needle, a fitting means for fitting to the ultrasonic probe, and the holding means together with the holding means when fitted to the ultrasonic probe. A moving means that moves relative to the ultrasonic probe, and the moving means includes a detected means that is detected by a sensor provided in the ultrasonic probe when fitted to the ultrasonic probe. It is characterized by having.

According to the present invention, there is provided a separation-type retrofitting type puncture adapter for guiding the insertion of a puncture needle, which is easy to disinfect and sterilize, or has an inexpensive needle guide portion, an ultrasonic probe, and A puncture adapter can be provided.

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

(First embodiment)
FIG. 1 is an external view schematically showing an embodiment of the ultrasonic probe of the present invention and a puncture adapter attached to the ultrasonic probe. Further, FIG. 2 shows an ultrasound displayed as a puncture needle marker on an ultrasonic tomographic image of a monitor to which an ultrasonic probe equipped with the puncture adapter of this embodiment is connected and the puncture direction of the puncture needle attached to the puncture adapter is connected. It is a block diagram of the configuration of the ultrasonic diagnostic apparatus.

The ultrasonic probe 10 of this embodiment illustrated in FIG. 1B includes a light emitting element 13a and a light receiving element on a probe body 11 that holds an ultrasonic transmission / reception transducer unit 12 in which an ultrasonic transducer is arranged. The optical sensor part 13 which arranged 13b alternately in circular arc shape is provided. The lead wires of the light emitting element 13a and the light receiving element 13b are arranged and wired inside the probe body 11, and are integrated into the probe lead-out cable 11c together with the lead wire of the ultrasonic transducer and connected to the main body of the ultrasonic diagnostic apparatus. Is done.

Further, the holder 21 of the puncture adapter 20 sandwiches the probe barrel 11 so that the slide opening 22 of the puncture adapter 20 shown in FIG. Fit to this. This state of attachment is shown in FIG. The slide opening 22 of the puncture adapter 20 is fitted with a slider 23 having a light reflecting surface on the side facing the probe body 11, and the adapter wing 25 is attached to the end of the slider 23 far from the probe body 11. A needle guide 24 is attached by a screw (not shown). The puncture needle 29 is inserted into the puncture needle hole of the needle guide 24 as shown in FIG.

Next, an ultrasonic diagnostic apparatus to which the ultrasonic probe 10 equipped with the puncture adapter 20 of the present embodiment is connected will be described with reference to a configuration block diagram shown in FIG.

In the ultrasonic diagnostic apparatus of the present embodiment, as shown in the figure, the ultrasonic probe 10 to which the puncture adapter 20 is attached and the ultrasonic probe are connected, and an angle sensor signal provided in the ultrasonic probe is input, and these are processed. A main body 30, an input device 41 to the main body such as a keyboard, a trackball, and an operation panel, and a monitor 39 for displaying an image output from the main body.

Further, the main body 30 includes an ultrasonic transmission unit 31 that outputs a drive signal to the ultrasonic probe 10, and
An ultrasonic receiving unit 32 to which a received ultrasonic signal is input, an image processing unit 33 for processing the received signal into an image signal, and a sensor signal provided in the ultrasonic probe 10 are input, and the sensor signal is converted into an angle signal. A sensor IF (interface) unit 34 that performs conversion processing into a data, a database 35 that stores and saves various data, and a CPU (central processing) unit 36 that controls each component of the main body unit according to an operation instruction signal from the input device 41. The image signal from the image processing unit 33 is converted into various image display formats, or other ultrasonic diagnostic images from the image recording device 38, for example, additional image information such as a puncture guide image from the sensor IF unit 34, etc. And a display unit 37 for graphically processing and outputting to the monitor 39.

That is, the main body unit 30 processes a signal from the sensor included in the ultrasonic probe of the present embodiment, as compared with a main body configuration when a general ultrasonic probe that acquires an ultrasonic tomographic image is connected. A sensor IF unit 34 is provided, and pattern image data of a puncture guide image added to the display of the monitor 39 based on the sensor signal is displayed on the display unit 37 under the control of the CPU unit 36.
The part processed in is added.

  Next, the operation and operation of this embodiment will be described with reference to FIG.

As shown in FIG. 1A, the needle guide 24 of the puncture adapter 20 is moved toward the end of the adapter wing 25 far from the probe body 11 as shown in FIG. When the holder 21 is fitted and mounted, as shown in FIG. 3C, all elements of the optical sensor section 13 in which the light emitting elements 13a and the light receiving elements 13b provided in the probe body 11 are alternately arranged in an arc shape slide. Light that is exposed from the opening 22 and emitted from the light emitting element 13a does not enter any of the light receiving elements 13b, and no signal is output from these light receiving elements 13b. The position of the needle guide 24 is the maximum insertion angle of the puncture needle (when the vertical insertion angle is 0 degree).

Next, the needle guide 24 is moved together with the slider 23 along the slide opening 22 to the probe body 1.
When the insertion angle of the puncture needle is reduced, the slider 23 having the light reflecting surface on the side facing the probe body 11 hangs on the upper surfaces of the light emitting element 13a and the light receiving element 13b. The strongly reflected light enters the light receiving element 13b, and a detection signal is output from the light receiving element 13b. This detection signal is a lead wire (not shown) laid in the probe body 11
Along with the transducer lead wires of the ultrasonic transmission / reception transducer section 12 provided at the distal end portion of the ultrasonic probe 10, the probe lead cable 11c is bundled and provided in the main body section 30 of the ultrasonic diagnostic apparatus. Connected to the sensor IF unit 34. The sensor IF unit 34 to which the detection signal is input determines how many pairs of light emitting elements and light receiving elements are detected, and the moving position of the slider 23, that is, insertion of the puncture needle set by the needle guide 24 is determined. The angle is measured and the result is input to the CPU unit 36. The CPU unit 36 instructs the image recording device 38 to output puncture guide image data corresponding to the detected puncture needle insertion angle to the display unit 37. Alternatively, the display unit 37 displays an instruction signal for the CPU unit 36 to draw a straight line image corresponding to the puncture guide image.
Output directly to.

The puncture person who has confirmed the puncture guide image on the monitor 39 can insert the puncture needle 29 into the puncture needle hole of the needle guide 24 and further advance to the insertion position of the living body to perform the puncture.

In the above description, the light sensor 13a and the light receiving element 13b are alternately arranged in an arc shape. However, the light emitting element 13a and the light receiving element 13b are vertically arranged in the radial direction.
Increasing the detection accuracy by the optical sensor section in which these are arranged in a circular arc at high density, and the slider 2
The improvement of detection accuracy by making the reflecting surface 3 a narrow linear shape is also carried out within the scope of the design of the present invention.

According to this embodiment, the ultrasonic diagnostic apparatus reads the setting angle of the needle guide, and the insertion position or insertion direction of the puncture needle can be automatically displayed in the ultrasonic image. Accordingly, it is possible to provide an ultrasonic diagnostic apparatus, a probe thereof, and a puncture adapter that do not require a troublesome operation for displaying an increase in puncture guide for an operator or an operator. In addition, the angle detection sensor is disposed on the body of the ultrasonic probe, and the puncture adapter has no electrical mechanism. Therefore, disinfection and sterilization can be performed without fear of circuit breakage or electric leakage due to heat or moisture. In addition, since the puncture adapter itself can be configured at a lower cost than the puncture adapter provided with the sensor, the puncture adapter can be used as a disposable. Furthermore, since the lead wire for the sensor signal is also wired inside the probe body, it is not necessary to provide connection means such as a connector outside the probe. Furthermore, the transmission cable to the main body is connected by a probe cable integrated with the transducer cable, and an ultrasonic probe equipped with a puncture guide with excellent operability can be provided.

In addition, according to the present embodiment, since there is no need to provide electromagnetic means in the puncture adapter, the magnetic material is used in the slide portion as shown in the third and fourth embodiments described later. A puncture needle adapter can be constructed at low cost.

(Second Embodiment)
In the second embodiment of the present invention, as shown in FIG. 3 (c), a slider 26 having a remarkably different reflectance on the probe body 11 side, for example, a black and white grid stripe pattern, is formed on the needle guide 24. The puncture adapter 20 shown in FIG. 5B is attached and moves through the slide opening 22, and the ultrasonic probe is provided with a pair of light-emitting elements 15a and light-receiving elements 15b in the optical sensor section 15 shown in FIG. This is an ultrasonic diagnostic apparatus that is fitted to the body portion 11 and connected to the main body portion 30. In the description of the present embodiment, the description overlapping with the first embodiment will be omitted, and the description will focus on the differences.

In this embodiment, the puncture adapter 20 is sandwiched and fitted to the body 11 of the ultrasonic probe 10.
Loosen a screw (not shown) for pinching the needle guide 24 of the slider 26 to the desired position.
Move with. Due to this movement, the lattice stripe pattern provided on the slider 26 is changed into the optical sensor unit 1.
5 passes through the light-emitting element 15a and the light-receiving element 15b, and then the reflected light intermittently enters the light-receiving element 15b. The transmission lead wire for the incident light signal is arranged inside the probe body 11 and is bundled together with the lead wire of the ultrasonic transducer of the probe as a probe cable to be used as the sensor IF unit 34 or the ultrasonic receiver unit of the main body 30. 32 respectively. The pulse train signal output from the light receiving element 15b by this light incident signal is converted into movement angle data by the pulse count by the sensor IF unit 34 and input to the CPU unit 36. As in the first embodiment, the CPU unit 36 instructs the image recording device 38 to output the puncture guide image data corresponding to the input needle guide movement angle to the display unit 37. Alternatively, the CPU unit 36 directly instructs the display unit 37 to issue an instruction signal for drawing a straight line image corresponding to the puncture guide image.

In order to detect the direction of movement (change in the puncture needle angle), the optical sensor unit 15 is arranged on both sides of the light emitting element in the order of the light receiving element 15c (not shown), the light emitting element 15a, and the light receiving element 15b. A light receiving element may be arranged, the phase of the reflected light signal obtained from the light receiving elements 15b and 15c may be determined, the moving direction may be determined, and the moving angle may be added or subtracted.

Further, the lattice-like stripe pattern of the slider 26 is formed by a code having a monochrome binary pattern such as a bar code indicating a puncture angle or a QR code (registered trademark), and this code pattern is used as a light emitting element of the optical sensor unit 15. May be read by the light receiving element 15b, decoded by the sensor IF unit 34 of the main body unit 30, and input to the CPU unit 36.

The display unit 37 to which the puncture guide image data is input, or the display unit 37 to which the CPU unit 36 is directly instructed to draw a straight line image is displayed on the ultrasonic tomographic image being observed on the monitor 39.
This image is overwritten and displayed, and the direction and position where the puncture needle is inserted is displayed.

According to this embodiment, the ultrasonic diagnostic apparatus reads the setting angle of the needle guide, and the insertion position or insertion direction of the puncture needle can be automatically displayed in the ultrasonic image. Accordingly, it is possible to provide an ultrasonic diagnostic apparatus, a probe thereof, and a puncture adapter that do not require a troublesome operation for displaying an increase in puncture guide for an operator or an operator. In addition, the angle detection sensor is disposed on the body of the ultrasonic probe, and the puncture adapter has no electrical mechanism. Therefore, disinfection and sterilization can be performed without fear of circuit breakage or electric leakage due to heat or moisture. In addition, since the puncture adapter itself can be configured at a lower cost than the puncture adapter provided with the sensor, the puncture adapter can be used as a disposable. Furthermore, since the lead wire for the sensor signal is also wired inside the probe body, it is not necessary to provide connection means such as a connector outside the probe. Furthermore, the transmission cable to the main body is connected by a probe cable integrated with the transducer cable, and an ultrasonic probe equipped with a puncture guide with excellent operability can be provided.

In addition, according to the present embodiment, since there is no need to provide electromagnetic means in the puncture adapter, the magnetic material is used in the slide portion as shown in the third and fourth embodiments described later. A puncture needle adapter can be constructed at low cost.

In the case of the present embodiment, since the number of sensors provided in the ultrasonic probe can be implemented with a small quantity of two or three, connecting means such as sensors and lead wires for sensor signals, connectors, or the like can be used. There is an advantage that the cost of the probe cable to be connected together can be reduced.

(Third embodiment)
In the third embodiment, as shown in FIG. 4C, a slider 27 having a magnetic body 27a magnetized on the probe body side is attached to the needle guide 24 and moves through the slide opening 22. The puncture adapter 20 shown in FIG. 5B is fitted into the body 11 of the ultrasonic probe 10 having the magnetic sensor elements 16a to 16f arranged in an arc shape in the magnetic sensor part 16 shown in FIG. This is an ultrasonic diagnostic apparatus in which this is connected to the main body 30. In the description of this embodiment,
The description which overlaps with 1st thru | or 2nd embodiment is omitted, and it demonstrates centering around difference.

In this embodiment, the puncture adapter 20 is sandwiched and fitted to the body 11 of the ultrasonic probe 10.
Loosen a screw (not shown) for pinching the needle guide 24 of the slider 27 to the desired position.
When moved together, the magnetized magnetic body 27 a provided at the tip of the slider 27 passes over the magnetic sensor elements 16 a to 16 f of the magnetic sensor unit 16. By this passage, detection signals based on the differential magnetic flux are sequentially generated in the magnetic sensor elements 16a to 16f. The detection signal transmission lead wire is arranged inside the probe body 11, and together with the lead wire of the ultrasonic transducer of the probe, it is used as a probe cable to form the sensor IF unit 34 or the ultrasonic wave receiver 32 of the main body 30.
Connected to each. This detection signal is counted by the sensor IF unit 34, converted into movement angle data, and input to the CPU unit 36. Similar to the first embodiment or the second embodiment, the CPU unit 36 instructs the image recording device 38 to display the puncture guide image data corresponding to the input needle guide movement angle. Output to the unit 37. Or CPU
The unit 36 directly instructs the display unit 37 to issue an instruction signal for drawing a straight line image corresponding to the puncture guide image.

The display unit 37 to which the puncture guide image data is input, or the display unit 37 to which the CPU unit 36 is directly instructed to draw a straight line image is displayed on the ultrasonic tomographic image being observed on the monitor 39.
This image is overwritten and displayed, and the direction and position where the puncture needle is inserted is displayed.

According to this embodiment, the ultrasonic diagnostic apparatus reads the setting angle of the needle guide, and the insertion position or insertion direction of the puncture needle can be automatically displayed in the ultrasonic image. Accordingly, it is possible to provide an ultrasonic diagnostic apparatus, a probe thereof, and a puncture adapter that do not require a troublesome operation for displaying an increase in puncture guide for an operator or an operator. In addition, the angle detection sensor is disposed on the body of the ultrasonic probe, and the puncture adapter has no electrical mechanism. Therefore, disinfection and sterilization can be performed without fear of circuit breakage or electric leakage due to heat or moisture. In addition, since the puncture adapter itself can be configured at a lower cost than the puncture adapter provided with the sensor, the puncture adapter can be used as a disposable. Furthermore, since the lead wire for the sensor signal is also wired inside the probe body, it is not necessary to provide connection means such as a connector outside the probe. Furthermore, the transmission cable to the main body is connected by a probe cable integrated with the transducer cable, and an ultrasonic probe equipped with a puncture guide with excellent operability can be provided.

In the present embodiment, since the magnetic body and the magnetic sensor element are detected in a non-contact manner, the magnetic sensor elements 16 a to 16 n may be molded in the outer shell case of the probe body 11. It can be buried because it is sensitive. In this case, since there is no unevenness on the probe body 11 due to the presence of the sensor, the probe can be easily cleaned. Also,
Since non-contact detection is performed, even if the tissue or body fluid of the subject adheres to the probe body, its function is not affected. Therefore, it is advantageous in that there is no deterioration of the sensor due to adhered matter or the like.

Further, according to the present embodiment, since it is not necessary to provide a plurality of magnetized magnetic bodies in the puncture adapter, it is less expensive than the case where a plurality of magnetic bodies are used for the slide portion as shown in the fourth embodiment described later. A puncture needle adapter can be configured.

(Fourth embodiment)
In the third embodiment, as shown in FIG. 5 (c), a slider 28 having a plurality of magnetized magnetic bodies 28a arranged in an arc shape on the probe body side is attached to a needle guide 24 so that a slide opening is provided. The puncture adapter 20 shown in FIG. 6B, which moves the part 22, is fitted into the body 11 of the ultrasonic probe 10 provided with the magnetic sensor element 17a in the magnetic sensor part 17 shown in FIG. This is an ultrasonic diagnostic apparatus in which this is connected to the main body 30. A description overlapping with the first to third embodiments will be omitted, and the description will focus on the differences.

In this embodiment, the puncture adapter 20 is sandwiched and fitted to the body 11 of the ultrasonic probe 10.
Loosen a screw (not shown) for pinching the needle guide 24 of the slider 28 to the desired position.
When the magnetic body 28a moves together, the plurality of magnetized magnetic bodies 28a provided on the slider 28 sequentially pass over the magnetic sensor element 17a. Arise. The detection signal transmission lead wire is arranged inside the probe body 11, and together with the lead wire of the ultrasonic transducer of the probe, it is used as a probe cable to form the sensor IF unit 34 or the ultrasonic wave receiver 32 of the main body 30. Connected to each. The pulse train signal output from the magnetic sensor element 17 a is converted into movement angle data by a pulse count by the sensor IF unit 34 and input to the CPU unit 36. As in the first embodiment or the second embodiment, the CPU unit 36 instructs the image recording device 38 to display puncture guide image data corresponding to the input needle guide movement angle. Output to the unit 37. Or CPU
The unit 36 directly instructs the display unit 37 to issue an instruction signal for drawing a straight line image corresponding to the puncture guide image.

The display unit 37 to which the puncture guide image data is input, or the display unit 37 to which the CPU unit 36 is directly instructed to draw a straight line image is displayed on the ultrasonic tomographic image being observed on the monitor 39.
This image is overwritten and displayed, and the direction and position where the puncture needle is inserted is displayed.

According to this embodiment, the ultrasonic diagnostic apparatus reads the setting angle of the needle guide, and the insertion position or insertion direction of the puncture needle can be automatically displayed in the ultrasonic image. Accordingly, it is possible to provide an ultrasonic diagnostic apparatus, a probe thereof, and a puncture adapter that do not require a troublesome operation for displaying an increase in puncture guide for an operator or an operator. In addition, the angle detection sensor is disposed on the body of the ultrasonic probe, and the puncture adapter has no electrical mechanism. Therefore, disinfection and sterilization can be performed without fear of circuit breakage or electric leakage due to heat or moisture. In addition, since the puncture adapter itself can be configured at a lower cost than the puncture adapter provided with the sensor, the puncture adapter can be used as a disposable. Furthermore, since the lead wire for the sensor signal is also wired inside the probe body, it is not necessary to provide connection means such as a connector outside the probe. Furthermore, the transmission cable to the main body is connected by a probe cable integrated with the transducer cable, and an ultrasonic probe equipped with a puncture guide with excellent operability can be provided.

In the present embodiment, since the magnetic body and the magnetic sensor element are detected in a non-contact manner, the magnetic sensor element 17a is sensitive even if it is molded inside the outer shell case of the probe body 11. So it can be buried. In this case, the probe body 1 is caused by the presence of the sensor.
Since no irregularities are formed on 1, the probe can be easily cleaned. In addition, since non-contact detection is performed, even when the tissue or body fluid of the subject adheres to the probe body, its function is not affected. Therefore, it is advantageous in that there is no deterioration of the sensor due to adhered matter or the like.

Furthermore, in the case of the present embodiment, since the number of sensors provided in the ultrasonic probe can be implemented by one, the connecting means such as a lead wire for the sensor and the sensor signal, a connector, or the like or a probe for connecting them together is connected. There is an advantage that the cost of the cable can be suppressed.

(Modification)
In the above embodiment, the case where an optical sensor or a magnetic sensor is used has been described, but the present invention is not limited to this. The sensor used may be one that detects a current due to electromagnetic induction. In this case, a plurality of coils as sensors are arranged in an arc shape on the sensor unit, and current generated by passing a magnetized magnetic body provided on the slider can be detected and used as angle information.

Further, a current due to a change in capacitance may be detected. Also at this time, the angle information can be detected by arranging a plurality of coils as a sensor in an arc shape on the sensor portion and passing a conductor provided on the slider.

Furthermore, the position of the slider may be detected by transmitting and receiving ultrasonic waves instead of light. This can be realized, for example, by configuring the light receiving element and the light emitting element in the first embodiment with an ultrasonic transducer.

BRIEF DESCRIPTION OF THE DRAWINGS The external view which shows typically 1st Embodiment of the ultrasonic probe and puncture adapter of this invention. 1 is a configuration block diagram showing an ultrasonic diagnostic apparatus of the present embodiment. The schematic external view of the ultrasonic probe and puncture adapter which show 2nd Embodiment of this invention. The schematic external view of the ultrasonic probe and puncture adapter which show 3rd Embodiment of this invention. The schematic external view of the ultrasonic probe and puncture adapter which show 4th Embodiment of this invention.

Explanation of symbols

10 ... Ultrasonic probe,
11, ... probe body,
11c: Probe lead-out cable,
12 ... Ultrasonic transmitting / receiving transducer part,
13, 15... Optical sensor part,
13a, 15a... Light emitting element of the optical sensor unit,
13b, 15b ... the light receiving element of the optical sensor unit,
16, 17 ... magnetic sensor part,
16a to 16f, 17a ... magnetic sensor element,
20 ... Puncture adapter,
21 ... Holder,
22 ... slide opening,
23, 23a, 26, 27, 28 ... slider,
24, 24a, ... needle guide,
25 ... Adapter wing 26a ... Plaid 27a, 28a ... Magnetized magnetic material 29 ... Puncture needle,
30 ... main body,
31 ... Ultrasonic transmitter,
32 ... Ultrasonic wave receiver,
33 ... Image processing unit,
33a ... B-mode processing unit,
33 ... color mode processing unit,
34 ... Sensor IF (interface) section,
35 ... Database,
36... CPU (central processing) section,
37 ... display part,
38... Image recording device,
39: Monitor,
41 ... input device,

Claims (17)

An ultrasonic probe;
A puncture adapter that is attached to the ultrasonic probe to hold the puncture needle and includes a moving member that moves relative to the ultrasonic probe together with the puncture needle;
A sensor provided on the ultrasonic probe for detecting the position of the moving member;
An ultrasonic diagnostic apparatus comprising: The puncture adapter is
The ultrasonic diagnostic apparatus according to claim 1, wherein the ultrasonic diagnostic apparatus is detachable from the ultrasonic probe. The ultrasonic diagnostic apparatus according to claim 1, further comprising a transmission unit that is provided in the ultrasonic probe and transmits information from the sensor to the outside of the ultrasonic probe. The ultrasonic diagnostic apparatus according to claim 1, further comprising display means for displaying information related to a position of the puncture needle based on a signal from the sensor. The sensor is
It comprises a plurality of optical sensors provided at different positions along the movement path of the moving member, and detects the position of the moving member based on the light receiving state of the optical sensor that changes as the moving member moves. The ultrasonic diagnostic apparatus according to claim 1. The moving member is
It has a pattern to make the reflection of light different at multiple positions,
The sensor is
It comprises an optical sensor provided in the vicinity of a moving path of the moving member, and detects the position of the moving member based on a light receiving state of the optical sensor that changes as the pattern moves. Item 2. The ultrasonic diagnostic apparatus according to Item 1. The moving member is
Having at least one magnetized magnetic body;
The sensor is
A plurality of magnetic sensors are provided at different positions along the movement path of the moving member, and the position of the moving member is detected based on the detection state of the magnetic sensor that changes as the magnetic body moves. The ultrasonic diagnostic apparatus according to claim 1, wherein: The moving member is
It has a magnetic pattern to make the magnetic field different at multiple positions,
The sensor is
The ultrasonic diagnostic apparatus according to claim 1, comprising a magnetic sensor, wherein the position of the moving member is detected based on a detection state of the magnetic sensor that changes as the magnetic pattern moves. The ultrasonic diagnostic apparatus according to claim 1, wherein the sensor is any one of an electromagnetic induction sensor, a capacitance sensor, and an ultrasonic sensor. A puncture adapter that is attached to hold the puncture needle and includes a moving member that moves together with the puncture needle;
A sensor for detecting the position of the moving member;
An ultrasonic probe comprising: The ultrasonic probe according to claim 1, wherein the puncture adapter is detachable. The sensor is
The optical sensor is provided with a plurality of optical sensors provided at different positions along the movement path of the moving member, and the light receiving state of the optical sensor changes with the movement of the moving member. Ultrasonic probe. The moving member is
It has a pattern to make the reflection of light different at multiple positions,
The sensor is
The ultrasonic probe according to claim 10, comprising an optical sensor provided in the vicinity of a moving path of the moving member, wherein a light receiving state of the optical sensor changes as the pattern moves. The moving member is
Having at least one magnetized magnetic body;
The sensor is
The magnetic sensor includes a plurality of magnetic sensors provided at different positions along a movement path of the moving member, and the detection state of the magnetic sensor changes as the magnetic body moves. The described ultrasonic probe. The moving member is
It has a magnetic pattern to make the magnetic field different at multiple positions,
The sensor is
The ultrasonic probe according to claim 10, comprising a magnetic sensor, wherein a detection state of the magnetic sensor changes as the magnetic pattern moves. The ultrasonic probe according to claim 10, wherein the sensor is any one of an electromagnetic induction sensor, a capacitance sensor, and an ultrasonic sensor. Holding means for holding the puncture needle;
A fitting means for fitting to the ultrasonic probe;
A moving means that moves relative to the ultrasonic probe together with the holding means when fitted to the ultrasonic probe;
The moving means is
A puncture adapter characterized by having a detected means for being detected by a sensor provided in the ultrasonic probe when fitted to the ultrasonic probe.

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