WO2010041629A1 - Bloodstream detecting device - Google Patents

Bloodstream detecting device Download PDF

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Publication number
WO2010041629A1
WO2010041629A1 PCT/JP2009/067348 JP2009067348W WO2010041629A1 WO 2010041629 A1 WO2010041629 A1 WO 2010041629A1 JP 2009067348 W JP2009067348 W JP 2009067348W WO 2010041629 A1 WO2010041629 A1 WO 2010041629A1
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WO
WIPO (PCT)
Prior art keywords
blood flow
information
living body
embodiment
unit
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Application number
PCT/JP2009/067348
Other languages
French (fr)
Japanese (ja)
Inventor
浩仲 宮木
新一 蔦木
俊広 静
大澤 篤
Original Assignee
オリンパスメディカルシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to JP2008-260926 priority Critical
Priority to JP2008260926 priority
Application filed by オリンパスメディカルシステムズ株式会社 filed Critical オリンパスメディカルシステムズ株式会社
Publication of WO2010041629A1 publication Critical patent/WO2010041629A1/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28Surgical forceps
    • A61B17/29Forceps for use in minimally invasive surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/018Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06Measuring blood flow
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28Surgical forceps
    • A61B17/29Forceps for use in minimally invasive surgery
    • A61B2017/2926Details of heads or jaws
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36Image-producing devices or illumination devices not otherwise provided for
    • A61B90/37Surgical systems with images on a monitor during operation
    • A61B2090/378Surgical systems with images on a monitor during operation using ultrasound
    • A61B2090/3782Surgical systems with images on a monitor during operation using ultrasound transmitter or receiver in catheter or minimal invasive instrument
    • A61B2090/3784Surgical systems with images on a monitor during operation using ultrasound transmitter or receiver in catheter or minimal invasive instrument both receiver and transmitter being in the instrument or receiver being also transmitter
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06Measuring instruments not otherwise provided for

Abstract

A bloodstream detecting device is provided with an ultrasonic transducer; a probe unit configured such that ultrasonic waves can be transmitted and received to and from a living body; a bloodstream information arithmetic unit which calculates bloodstream information consisting of at least one of the speed of a bloodstream, the power value of the bloodstream, the volume of the bloodstream, or the depth of an area in which the bloodstream exists, by transmitting and receiving the ultrasonic waves to and from the living body by using the ultrasonic transducer; and an information reporting unit which outputs the change of the bloodstream information as at least one of audio information, visual information, or tactile information, and reports thereof to a user.

Description

Blood flow detection device

The present invention relates to a blood flow detection device that detects blood flow in a living body by transmitting and receiving ultrasonic waves to the living body using an ultrasonic transducer.

As a technique for observing the state of blood flow in a living body, a technique for transmitting and receiving ultrasonic waves in the living body and using a change in frequency due to the Doppler effect of the ultrasonic waves is known. Such a technique is disclosed, for example, in Japanese National Publication No. 8-503862.

In the invention disclosed in Japanese Patent Publication No. 8-503862, a pulse Doppler method using ultrasonic waves is used as a method for measuring the start of blood flow during thrombus treatment.

By the way, when a surgical treatment is performed on a living body with a treatment tool such as a scalpel, the treatment is preferably performed while avoiding blood vessels in the living body. As a method of specifying the position of a blood vessel in a living body when performing such a surgical treatment, an ultrasonic diagnostic apparatus that captures an ultrasonic tomographic image of the living body may be used.

However, such an ultrasonic diagnostic apparatus for imaging an ultrasonic tomographic image of a living body is a dedicated device and has a large apparatus scale, so that it takes time to use it for all surgical procedures. There is a problem to say.

The present invention has been made in view of the above problems, and a blood flow detection device capable of easily specifying a site with less bleeding when performing treatment on a living body without using an ultrasonic diagnostic apparatus The purpose is to provide.

The blood flow detection device according to the present invention includes an ultrasonic transducer, and a probe unit configured to be able to transmit and receive ultrasonic waves to a living body, and by transmitting and receiving ultrasonic waves to and from the living body using the ultrasonic transducer, A blood flow information calculation unit for calculating blood flow information including at least one of a blood flow speed, a blood flow power value, a blood flow volume, and a depth of a region where the blood flow exists, and a change in the blood flow information Is provided as a change in at least one of auditory information, visual information, and tactile information, and is notified to the user.

It is a perspective view of a blood-flow detection apparatus. It is a block diagram which shows the schematic structure of a blood-flow detection apparatus. It is a block diagram which shows the schematic structure of the blood-flow detection apparatus of 2nd Embodiment. It is a block diagram which shows schematic structure of the blood-flow detection apparatus of 3rd Embodiment. It is a block diagram which shows the schematic structure of the blood-flow detection apparatus of 4th Embodiment. It is a perspective view which shows the structure of the ultrasonic transducer of 5th Embodiment. It is a figure which shows the structure of the probe part of 6th Embodiment. It is a figure which shows the structure of the probe part of 7th Embodiment. It is a perspective view which shows the detail of the probe part of 7th Embodiment. It is a figure which shows the structure of the probe part of 8th Embodiment. It is a figure which shows schematic structure of the blood-flow detection apparatus of 9th Embodiment. It is a figure explaining the form of the output of the visual information of 9th Embodiment. It is a figure which shows the structure of the probe part of 10th Embodiment. It is a figure which shows the modification of 10th Embodiment. It is a figure which shows the structure of the probe part of 11th Embodiment.

A preferred embodiment of the blood flow detection device of the present invention will be described with reference to the drawings. In each drawing used for the following description, the scale is different for each component in order to make each component large enough to be recognized on the drawing. It is not limited only to the quantity of the component described in the figure, the shape of the component, the ratio of the size of the component, and the relative positional relationship of each component.

(First embodiment)
The first embodiment of the present invention will be described below. The blood flow detection device 1 according to the present embodiment includes an ultrasonic transducer 3 for transmitting and receiving ultrasonic waves, a probe unit 2 including an ultrasonic transducer and configured to transmit and receive ultrasonic waves to a living body, a control unit 10, It comprises. The ultrasonic transducer 3 is disposed in the ultrasonic transmission / reception unit 2 a of the probe unit 2. The operation of the ultrasonic transducer 3 is controlled by the control unit 10 described later.

Although the configuration of the ultrasonic transducer 3 is not particularly limited, for example, a configuration including a piezoelectric element such as piezoelectric ceramics or an electrostrictive element, or a configuration including a capacitive speaker and a capacitive microphone may be considered. It is done.

The control unit 10 includes a control circuit unit 13, an ultrasonic transmission / reception circuit unit 11, a blood flow information calculation unit 12, and an information notification unit 20. Further, the control unit 10 is provided with a power supply circuit unit (not shown) that supplies power from an external power supply or a built-in power supply battery to each unit of the blood flow detection device 1.

The control circuit unit 13 controls the operation of each circuit in the control unit 10 in response to an instruction input from a user or an external device or automatically. The ultrasonic transmission / reception circuit unit 11 is electrically connected to the ultrasonic transducer 3 provided in the ultrasonic transmission / reception unit 2a. The ultrasonic transmission / reception circuit unit 11 controls transmission of pulsed ultrasonic waves from the ultrasonic transducer 3 into the living body and also controls reception of ultrasonic waves reflected in the living body.

In addition, the transmission / reception of the ultrasonic wave to the living body by the ultrasonic transducer 3 is not only in a state where the ultrasonic transmission / reception unit 2a is in direct contact with the living body, but also between the ultrasonic transmission / reception unit 2a and the living body such as a fluid or a gel. This is also possible in a state where an ultrasonic transmission medium is arranged.

The blood flow information calculation unit 12 is a variable indicating the state of blood flow in the ultrasound transmission / reception region of the living body based on the frequency shift due to the Doppler effect of the ultrasound transmitted / received from the ultrasound transducer 3 to the living body. Calculate some blood flow information. In addition, the calculation of blood flow information by the blood flow information calculation unit 12 is performed in real time.

More specifically, the blood flow information calculation unit 12 calculates the blood flow velocity at a plurality of locations in the depth direction in the ultrasound transmission / reception region of the living body by a so-called pulse Doppler method. Then, the blood flow information calculation unit 12 outputs the maximum value of the calculated blood flow velocities (absolute values) at a plurality of locations to the information notification unit 20 as blood flow information.

The information notification unit 20 outputs and notifies information corresponding to the blood flow information to the user. The information notification unit 20 includes an auditory information generation unit 21 and a speaker 22. In the present embodiment, the information notification unit 20 converts a change in blood flow information into auditory information called a change in sound in the auditory information generation unit 21, and outputs the auditory information from the speaker 22 to notify the user.

Here, the auditory information corresponding to the blood flow information output from the speaker 22 refers to at least one of a change in frequency, a change in volume, and a change in intermittent cycle of sound.

For example, when the blood flow information is notified to the user by the change in the sound intermittent cycle, the smaller the maximum value of the blood flow velocity that is the blood flow information is, the longer the sound intermittent cycle is. The greater the maximum value, the shorter the intermittent cycle of the sound. In this case, a plurality of types of changes in sound may be combined, such as changing the volume of sound emitted from the speaker 22 in accordance with blood flow information.

In addition, based on the result of comparing the blood flow information with a predetermined threshold value, a threshold for blood flow information is set such that the blood flow information does not change when the blood flow information is within a certain range. The used filtering process may be performed. For example, when the blood flow information is smaller than a threshold value, a form in which no sound is generated from the speaker 22 or no change is generated in the sound emitted from the speaker 22 can be considered.

According to the blood flow detection device 1 configured as described above, the user can change the velocity of the blood flow inside the site where the ultrasonic wave transmitting / receiving unit 2a of the probe unit 2 of the living body is brought into contact with a change in auditory information. You can know the size of. That is, by using the blood flow detection device 1 of the present embodiment, the user can specify a portion with less bleeding when performing treatment on a living body without using an ultrasonic observation device.

In the above-described embodiment, the blood flow information calculation unit 12 is configured to calculate the blood flow velocity in the ultrasound transmission / reception region of the living body as the blood flow information, but the blood calculated by the blood flow information calculation unit 12 The form of flow information is not limited to this. Below, the modification of this embodiment mentioned above is demonstrated.

(First modification)
For example, the blood flow information may be a power value indicating the intensity of blood flow in the ultrasound transmission / reception region of the living body.

More specifically, in the present modification, the blood flow information calculation unit 12 is based on the ultrasonic information transmitted / received to / from the living body from the ultrasonic transducer 3, and the depth direction in the ultrasonic transmitting / receiving area of the living body. The blood flow power value at a plurality of locations is calculated. The blood flow information calculation unit 12 outputs the maximum value of the calculated blood flow power values at a plurality of locations to the information notification unit 20 as blood flow information.

Then, the information notification unit 20 converts the blood flow information, that is, the change in the maximum value of the blood flow power value into auditory information called a sound change in the auditory information generation unit 21, and outputs the auditory information from the speaker 22. To notify the user.

Since the location where the power value of the blood flow is large corresponds to the location where the thick blood vessel is present, even when using the blood flow detection device 1 of this modification, the user can bleed when performing treatment on the living body. A few locations can be identified without using an ultrasonic observation apparatus.

(Second modification)
Further, the blood flow information may be a blood flow existing volume in the ultrasound transmission / reception region of the living body.

More specifically, in the present modification, the blood flow information calculation unit 12 is based on the ultrasonic information transmitted / received to / from the living body from the ultrasonic transducer 3 and the blood existing in the ultrasonic transmitting / receiving area of the living body. Calculate the existing volume of the flow.

Here, the blood flow presence volume is calculated by integrating a region where the absolute value of the blood flow velocity or the power value of the blood flow is equal to or greater than a predetermined value in the ultrasonic transmission / reception region.

The blood flow information calculation unit 12 outputs the calculated value of the existing blood flow volume to the information notification unit 20 as blood flow information.

Then, the information notification unit 20 converts the blood flow information, that is, the change in the existing volume of the blood flow into auditory information called a sound change in the auditory information generation unit 21, and outputs the auditory information from the speaker 22 to the user. Notify

Since the location where the value of the existing volume of blood flow is large corresponds to a location where a thick blood vessel exists or a location where a large number of blood vessels exist, the user can also use the blood flow detection device 1 according to this modification. It is possible to identify a portion with less bleeding when a treatment is performed on a living body without using an ultrasonic observation apparatus.

(Third Modification)
In addition, the blood flow information may be the depth of a region where blood flow exists in the ultrasound transmission / reception region of the living body.

More specifically, in the present modification, the blood flow information calculation unit 12 is based on the ultrasonic information transmitted / received to / from the living body from the ultrasonic transducer 3 and the blood existing in the ultrasonic transmitting / receiving area of the living body. Calculate the depth of the region where the flow exists.

Here, the depth of the region where the blood flow exists is determined from the ultrasonic transducer 3 in the region where the absolute value of the blood flow velocity or the power value of the blood flow is equal to or greater than a predetermined value in the ultrasonic transmission / reception region. Is the distance.

The blood flow information calculation unit 12 outputs the calculated depth value of the region where the blood flow exists to the information notification unit 20 as blood flow information.

Then, the information notification unit 20 converts the blood flow information, that is, the change in the depth of the region where the blood flow exists, into auditory information called a sound change in the auditory information generation unit 21, and outputs the auditory information from the speaker 22. And notify the user.

By using the blood flow detection device 1 of this modification, the user can know the depth of the region where the blood flow exists, and even by using the blood flow detection device 1 of this modification, the user can It is possible to identify a portion with less bleeding when a treatment is performed on a living body without using an ultrasonic observation apparatus.

(Fourth modification)
In the first embodiment and the first to third modifications described above, the blood flow information is described as being constituted by one value, but the blood flow information is constituted by a plurality of variables. It may be a thing. That is, the blood flow information includes two or more of a blood flow speed, a blood flow power value, a blood flow existing volume, and a blood flow depth in the living body ultrasound transmission / reception region. It may be a combination of variables.

More specifically, in the present modification, the blood flow information calculation unit 12 is based on the ultrasonic information transmitted / received to / from the living body from the ultrasonic transducer 3, and the depth direction in the ultrasonic transmitting / receiving area of the living body. The maximum value of the blood flow velocity at a plurality of locations is calculated. Then, the blood flow information calculation unit 12 outputs the maximum value of the blood flow velocity in the transmission / reception region and the depth of the portion where the blood flow velocity is maximum to the information notification unit 20 as blood flow information.

Then, the information notification unit 20 converts the blood flow information, that is, the change in the depth of the portion where the blood flow velocity has the maximum value and the blood flow velocity to the auditory information as a sound change in the auditory information generation unit 21. The auditory information is output from the speaker 22 and notified to the user.

Specifically, the information notification unit 20 changes the frequency of the sound output from the speaker 22 according to the change in the maximum value of the blood flow velocity, and changes the depth of the portion where the blood flow velocity is maximum. Accordingly, the intermittent period of the sound output from the speaker 22 is changed.

According to the blood flow detection device 1 of the present modification, the user can know the depth of the region where the blood flow exists and the speed of the blood flow, and even using the blood flow detection device 1 of the present modification, The user can specify a portion with less bleeding when performing treatment on a living body without using an ultrasonic observation apparatus.

As shown in the first embodiment and the first to fourth modifications, the blood flow detection device 1 according to the present invention transmits and receives ultrasonic waves into the living body, and the Doppler effect of the ultrasonic waves. On the basis of the change, the blood flow velocity, the blood flow power value, the blood flow existence volume, and the depth of the region where the blood flow exists are calculated as blood flow information. And the blood-flow detection apparatus 1 which concerns on this invention is a change of the blood-flow information in the information notification part 20, the change of the frequency of the sound output from the speaker 22, the change of a volume, and the change of the period of intermittent sound, Is output as a change in auditory information consisting of at least one of the above and notified to the user.

(Second Embodiment)
The second embodiment of the present invention will be described below. The second embodiment shows an example of another form of the information notification unit. The second embodiment differs from the first embodiment described above only in the configuration of the information notification unit. Therefore, only this difference will be described below, and the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

As shown in FIG. 3, the information notification unit 20a in this embodiment includes a visual information generation unit 21a and a display device 22a.

In the present embodiment, the information notification unit 20a converts the change in blood flow information input from the blood flow information calculation unit 12 into visual information in the visual information generation unit 21a, and outputs the visual information from the display device 22a. Notify the user.

The form of the display device 22a for visually notifying the user of changes in blood flow information is not particularly limited. For example, the display device 22a includes a pointer-type meter, a multi-segment display device, a dot A display device capable of multi-value display of two or more values, such as a matrix type monochrome or color image display device and a light emitting device capable of changing the frequency (color) of the emitted light, can be considered.

Here, as described in the first embodiment, the blood flow information is obtained from at least one of the blood flow velocity, the blood flow power value, the blood flow existence volume, and the depth of the region where the blood flow exists. Become.

As an example, the blood flow information input from the blood flow information calculation unit 12 is the maximum value of the blood flow velocity, and the display device 22a changes the frequency (color) of the emitted light from green to yellow. A case where the light emitting device is configured and configured is described. In this case, the larger the maximum value of the blood flow velocity, the more the information notification unit 20a moves the center frequency of the emitted light of the display device 22a to the yellow side, and the smaller the maximum blood flow velocity value, the more the center of the emitted light. Move the frequency to the green side.

As in the first embodiment described above, the blood flow information includes blood flow velocity, blood flow power value, blood flow existence volume, and blood flow in the ultrasound transmission / reception region in the living body. The information notification unit 20a may notify the user of each of the plurality of variables as visual information.

For example, when the display device 22a includes a light emitting device capable of changing the frequency (color) of emitted light between green and yellow as described above, the change in the maximum value of the blood flow velocity is changed. Is output as a change in the center frequency of the emitted light, and a change in the depth of the region where the blood flow exists is output as a change in the intermittent period of the emitted light.

Of course, the information notification unit 20a may be configured to include a plurality of display devices 22a for displaying the state of change of each variable according to the number of variables constituting the blood flow information.

According to the blood flow detection device 1 configured as described above, the user can obtain blood flow information inside the portion where the ultrasound transmitting / receiving unit 2a of the living body probe unit 2 is in contact with a change in visual information. I can know. That is, by using the blood flow detection device 1 of the present embodiment, the user can specify a portion with less bleeding when performing treatment on a living body without using an ultrasonic observation device.

In addition, the form provided in the probe part 2 may be sufficient as the display apparatus 22a. For example, if the display unit 22a formed of a light emitting device such as an LED is disposed in the vicinity of the ultrasonic transmission / reception unit 2a, the amount of movement of the user's line of sight can be reduced.

(Third embodiment)
The third embodiment of the present invention will be described below. The third embodiment shows an example of another form of the information notification unit. The third embodiment is different from the first embodiment described above only in the configuration of the information notification unit. Therefore, only this difference will be described below, and the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

As shown in FIG. 4, the information notification unit 20b in the present embodiment includes a tactile information generation unit 21b and an actuator 22b.

In the present embodiment, the information notification unit 20b converts the change in blood flow information input from the blood flow information calculation unit 12 into tactile information in the tactile information generation unit 21a, and outputs the tactile information from the actuator 22b for use. The person in charge.

The form of the actuator 22b for notifying the user of a change in blood flow information as a change in tactile sensation is not particularly limited. For example, the actuator 22b may be a vibrator capable of generating vibrations or the user's skin. An apparatus or the like that can apply a pressure to the gas can be considered.

Here, as described in the first embodiment, the blood flow information is obtained from at least one of the blood flow velocity, the blood flow power value, the blood flow existence volume, and the depth of the region where the blood flow exists. Become.

As an example, a case will be described in which the blood flow information input from the blood flow information calculation unit 12 is the maximum value of the blood flow velocity and the actuator 22b includes a vibrator that can generate vibration. The actuator 22b made of a vibrator is disposed on a member that contacts the operator, such as a grip portion 2b that is gripped by the operator of the probe unit 2 or a wristband that is worn by the operator.

In this case, the information notification unit 20b shortens the period of vibration generated by the actuator 22b as the maximum value of the blood flow speed increases, and the period of vibration generated by the actuator 22b increases as the maximum value of the blood flow speed decreases. To do.

As in the first embodiment described above, the blood flow information includes blood flow velocity, blood flow power value, blood flow existence volume, and blood flow in the ultrasound transmission / reception region in the living body. The information notification unit 20b may be configured to notify the user of each of the plurality of variables as tactile information.

For example, when the actuator 22b is configured to include a vibrator as described above, the change in the maximum value of the blood flow velocity is output as the change in the vibration cycle, and the change in the depth of the region where the blood flow exists. A mode of outputting as a change in the period of intermittent vibration (ON / OFF of the operation of the vibrator) is conceivable.

Of course, the information notification unit 20b may be configured to include a plurality of actuators 22b for displaying changes in each variable according to the number of variables constituting the blood flow information.

According to the blood flow detection device 1 configured as described above, the user can obtain blood flow information inside the part where the ultrasonic wave transmitting / receiving unit 2a of the living body probe unit 2 is in contact with a change in tactile information. I can know. That is, by using the blood flow detection device 1 of the present embodiment, the user can specify a portion with less bleeding when performing treatment on a living body without using an ultrasonic observation device.

(Fourth embodiment)
In the above-described embodiment, the information notification unit is described as a mode for notifying the user of changes in blood flow information using auditory information, visual information, or tactile information. The form for notifying the change of the flow information may be configured by a combination of two or more of auditory information, visual information, and tactile information.

Therefore, in the following, a form of such a notification means will be described as a fourth embodiment of the present invention. The fourth embodiment shows an example of another form of the information notification unit. The fourth embodiment differs from the first to third embodiments described above only in the configuration of the information notification unit. Therefore, only this difference will be described below, and the same components as those in the first to third embodiments are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

As shown in FIG. 5, the information notification unit 20c in the present embodiment includes a hearing information generation unit 21 and a speaker 22, and outputs a change in blood flow information as a change in auditory information, a visual information generation unit 21a, and a display. And a device configured to output a change in blood flow information as a change in visual information.

According to the blood flow detection device 1 configured as described above, the user can reliably and without being affected by changes in the environment around the user due to changes in the two information of auditory information and visual information. It is possible to know blood flow information inside the portion of the living body probe unit 2 where the ultrasonic transmission / reception unit 2a is in contact.

(Fifth embodiment)
The fifth embodiment of the present invention will be described below. The fifth embodiment shows another form of the ultrasonic transducer 3. The fifth embodiment differs from the first embodiment described above only in the configuration of the ultrasonic transducer. Therefore, only this difference will be described below, and the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

The ultrasonic transducer 3a of the present embodiment includes a plurality of ultrasonic transducers. Specifically, as shown in FIG. 6, the ultrasonic transducer 3a includes a diffusion type ultrasonic transducer 3b and a converging type ultrasonic transducer 3c provided around the ultrasonic transducer 3b.

The difference between the diffusion-type ultrasonic transducer 3b and the convergence-type ultrasonic transducer 3c is the degree of convergence of the ultrasonic waves transmitted by each. The diffusion ultrasonic transducer 3b can transmit ultrasonic waves in a wider range than the convergent ultrasonic transducer 3c.

The ultrasonic transmission / reception circuit unit 11 disposed in the control unit 10 (not shown) can selectively drive the diffusion type ultrasonic transducer 3b and the convergence type ultrasonic transducer 3c or drive them simultaneously. .

According to the present embodiment, the user first operates the ultrasonic transducer 3a so as to be able to transmit ultrasonic waves over a wide range, thereby grasping the rough position of the place where blood flow in the living body exists, Thereafter, by operating the ultrasonic transducer 3a so that the ultrasonic waves can be converged and transmitted, the position where the blood flow exists can be quickly and accurately specified.

(Sixth embodiment)
The sixth embodiment of the present invention will be described below. 6th Embodiment shows another form of the probe part 2 by which the ultrasonic transducer 3 is arrange | positioned. In the above-described embodiment, the probe unit 2 is described as a single unit. However, the probe unit 2 may be configured as a part of a treatment tool for performing treatment on a living body.

The sixth embodiment differs from the above-described embodiment only in the configuration of the probe unit. Therefore, only this difference will be described below, and the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

The probe unit 2 of the present embodiment is provided at the distal end portion 31 of the treatment instrument 30. Although the form of the treatment tool 30 of this embodiment is not specifically limited, forceps, a puncture needle, a knife, a trocar, etc. may be applied.

As an example, a case will be described in which the treatment tool 30 is a forceps having a double-opening tip 31 as shown in FIG. In the treatment instrument 30 shown in FIG. 7, at least a part of the distal end portion 31 of the forceps is configured as the probe portion 2.

As described above, by arranging the probe unit 2 at the distal end portion 31 of the treatment tool 30, the user specifies a portion where there is little bleeding of the living body using the treatment tool 30 immediately before using the treatment tool 30. This makes it possible to perform treatment more quickly.

In addition, the probe part 2 may be provided not only in a treatment tool but in the insertion part of an endoscope.

(Seventh embodiment)
The seventh embodiment of the present invention will be described below. 7th Embodiment shows another form of the probe part 2 by which the ultrasonic transducer 3 is arrange | positioned. The seventh embodiment differs from the above-described embodiment only in the configuration of the probe unit. Therefore, only this difference will be described below, and the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

The probe portion 2 of the present embodiment is provided at a portion of the distal end portion 41 of the cylindrical sheath 40 that accommodates the treatment instrument 42 that can contact the living body. The form of the treatment instrument 42 and the sheath 40 covering the treatment instrument 42 of the present embodiment is not particularly limited. For example, a forceps, a puncture needle, A scalpel or the like can be applied.

As an example, a case will be described in which the treatment instrument 42 is a knife configured to be able to project and retract from the cylindrical sheath 40 as shown in FIG. As shown in FIGS. 8 and 9, in this embodiment, at least a part of the distal end portion 41 of the sheath 40 is configured as the probe portion 2.

In this way, by arranging the probe portion 2 at a portion of the sheath 40 that accommodates the treatment instrument 42 that can contact the living body, the user accommodates the treatment instrument 42 immediately before using the treatment instrument 42. Using the sheath 40, it is possible to identify a portion of the living body where there is little bleeding, and it is possible to perform treatment more quickly.

(Eighth embodiment)
The eighth embodiment of the present invention will be described below. The eighth embodiment shows another form of the probe unit 2 in which the ultrasonic transducer 3 is disposed. The eighth embodiment differs from the above-described embodiment only in the configuration of the probe unit. Therefore, only this difference will be described below, and the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

As shown in FIG. 10, the probe unit 2 of the present embodiment can be inserted into a conduit 51 provided in an insertion portion of an endoscope 50 that can be introduced into a living body, and It is configured to be able to protrude into the living body from the distal end side opening.

The form of the endoscope 50 is not particularly limited, and is not limited to an endoscope having a flexible insertion section, and may be a rigid endoscope.

In this way, by using the probe unit 2 configured to be able to project and retract into the living body via the conduit 51 provided in the endoscope 50, the user can perform treatment using the endoscope 50 in the living body. Can be performed without using an ultrasonic observation apparatus.

(Ninth embodiment)
The ninth embodiment of the present invention will be described below. The ninth embodiment shows another form of the blood flow detection device 1 of the eighth embodiment. The ninth embodiment is mainly different from the above-described eighth embodiment in the configuration of the control unit 10. Therefore, only this difference will be described below, and the same components as those in the eighth embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

As shown in FIG. 11, the endoscope 50 according to the present embodiment includes an imaging device 52 that electronically images the inside of a living body, and an in-vivo optical image is generated by an endoscope image generating unit 53 to generate an image. It is displayed on the display device 24.

On the other hand, the probe portion 2 can be inserted into a conduit 51 provided in an insertion portion of an endoscope 50 that can be introduced into a living body, as in the eighth embodiment, and the distal end of the conduit 51 It is configured to be able to protrude into the living body from the side opening.

The information notification unit 20d of the control unit 10 includes a visual information generation unit 21d and a synthesis circuit unit 23. The visual information generation unit 21 d converts the change in blood flow information input from the blood flow information calculation unit 12 into visual information that can be displayed on the image display device 24, and outputs the visual information to the synthesis circuit unit 23.

The synthesizing circuit unit 23 synthesizes blood flow information output from the visual information generating unit 21d with the in-vivo optical image captured by the endoscope 50 and output from the endoscopic image generating unit 53, and is an image display device. 24.

That is, in this embodiment, blood flow information notified to the user by the blood flow detection device 1 is displayed as visual information on the same display screen as the optical image obtained by the endoscope 50.

The display form for visually notifying the user of a change in blood flow information in the image display device 24 is not particularly limited. For example, a bar graph shape whose length changes according to a change in blood flow information is used. Or a form in which the color changes in accordance with changes in blood flow information.

An example of the display form of blood flow information on the image display device 24 will be described with reference to FIG. In FIG. 12, the optical image 60 captured by the imaging device 52 of the endoscope 50 is displayed on the display unit 24 a of the image display device 24. Then, adjacent to the optical image 60, a bar graph 61 whose vertical length changes in accordance with changes in blood flow information is displayed. Furthermore, the color of the background image 62 changes according to the change in blood flow information.

For example, when the blood flow information input from the blood flow information calculation unit 12 is the maximum value of the blood flow velocity, the bar graph 61 extends upward as the blood flow velocity maximum value increases. Further, the background image 62 can change in color between green and yellow, and the color changes to the yellow side as the maximum value of the blood flow speed increases, and the maximum value of the blood flow speed increases. The smaller the is, the more it changes to the green side.

In this way, by displaying visual information that changes according to blood flow information on the display unit of the image display device 24 that displays the optical image of the endoscope 50 in this manner, the user can detect the ultrasonic waves of the probe unit 2. When the treatment is performed on the living body while visually confirming the place where the transmission / reception unit 2a is brought into contact, it is possible to identify a place with less bleeding without using an ultrasonic observation apparatus.

In addition, it cannot be overemphasized that the blood-flow detection apparatus of this embodiment may be further equipped with the structure which notifies a user of the change of blood-flow information by the change of auditory information and tactile information.

(Tenth embodiment)
The tenth embodiment of the present invention will be described below. 10th Embodiment shows another form of the probe part 2 by which the ultrasonic transducer 3 is arrange | positioned. In the above-described eighth embodiment, the probe unit 2 is described as a configuration in which only the probe unit 2 is configured to be able to project and retract into the living body via the duct 51 of the endoscope 50. 2 may be configured as a part of a treatment tool for performing treatment on a living body.

The tenth embodiment differs from the above-described embodiment only in the configuration of the probe unit. Therefore, only this difference will be described below, and the same components as those in the eighth embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

The probe unit 2 of the present embodiment is provided at the distal end portion of a treatment instrument 70 that can be inserted into the duct 51 of the endoscope 50 and can be projected and retracted into the living body. Although the form of the treatment tool 70 of this embodiment is not specifically limited, Forceps, a puncture needle, a scalpel, a suture tool, etc. can be applied.

As an example, a case will be described in which the treatment instrument 70 is a forceps having a single-opening tip 71 as shown in FIG. In the treatment instrument 70 shown in FIG. 13, at least a part of the distal end portion 71 of the forceps is configured as the probe portion 2.

As described above, the probe unit 2 is disposed at a portion of the treatment instrument 70 that can be inserted into the duct 51 of the endoscope 50 so as to be in contact with the living body. Since the treatment tool 70 can be used to identify a portion of the living body where there is little bleeding, the treatment can be performed more quickly.

In FIG. 13, the ultrasonic transducer 3 is disposed facing the axial direction at the distal end portion 71 of the treatment instrument 70, but the ultrasonic transducer 3 of the treatment instrument 70 is arranged as shown in FIG. 14. The structure arrange | positioned facing the side of the front-end | tip part 71 may be sufficient.

The probe unit 2 may be inserted into the duct 51 of the endoscope 50 and may be provided at the distal end of a cylindrical sheath that houses the treatment instrument 70. In this case, the form of the sheath is not particularly limited, but a form for accommodating a puncture needle, a suture tool, a guide wire, or the like is conceivable.

(Eleventh embodiment)
The eleventh embodiment of the present invention will be described below. The eleventh embodiment shows another form of the probe unit 2 in which the ultrasonic transducer 3 is disposed. The eleventh embodiment differs from the tenth embodiment described above only in the configuration of the probe portion. Therefore, only this difference will be described below, and the same components as those in the tenth embodiment are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.

As shown in FIG. 15, in the eleventh embodiment, the probe unit 2 is disposed at the distal end portion 71 a of the treatment instrument 70 a that is a guide wire that can be inserted into the duct 51 of the endoscope 50.

In the present embodiment, an electrode 72 electrically connected to the ultrasonic transducer 3 via a conductive wire inserted inside is disposed on the proximal end side of the treatment instrument 70 so as to be exposed on the side surface. ing.

The electrode 72 exposed on the side surface of the treatment instrument 70 is electrically connected to the control unit 10 by coming into contact with an electrode 73 disposed inside a clip 74 that removably holds the periphery of the electrode 72. .

In this embodiment, in order to specify a portion with less bleeding of the living body, the clip 74 is attached to the guide wire 70a, and the ultrasonic transmission / reception unit 2a of the probe unit 2 is brought into contact with the living body. On the other hand, when using the guide wire 70a, the clip 74 is removed from the guide wire 70a.

The present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist or concept of the invention that can be read from the claims and the entire specification. The detection device is also included in the technical scope of the present invention.

This application is filed on the basis of the priority claim of Japanese Patent Application No. 2008-260926 filed in Japan on October 7, 2008, and the above disclosure is disclosed in the present specification, claims, It shall be cited in the drawing.

Claims (7)

  1. A probe unit comprising an ultrasonic transducer and configured to transmit and receive ultrasonic waves to a living body;
    By transmitting and receiving ultrasonic waves to the living body using the ultrasonic transducer, from at least one of blood flow velocity, blood flow power value, blood flow volume, and depth of the region where the blood flow exists A blood flow information calculation unit for calculating blood flow information,
    An information notification unit that outputs the change in the blood flow information as a change in at least one of auditory information, visual information, and tactile information and notifies the user;
    A blood flow detection device comprising:
  2. 2. The blood flow detection device according to claim 1, wherein the probe portion is disposed at a distal end portion of a treatment tool for performing treatment on the living body.
  3. 2. The blood flow detection device according to claim 1, wherein the probe portion is disposed at a distal end portion of a cylindrical sheath that houses a treatment tool for performing treatment on the living body.
  4. The blood flow detection device according to claim 1, wherein the probe part can project and retract into the living body from a conduit provided at a distal end portion of an endoscope that can be introduced into the living body.
  5. The probe section is disposed at a distal end portion of a treatment tool that can project and retract into the living body from a conduit provided at a distal end portion of an endoscope that can be introduced into the living body. 1. The blood flow detection device according to 1.
  6. The probe portion can be projected and retracted into a living body from a pipe line provided at a distal end portion of an endoscope that can be introduced into the living body, and is attached to a distal end portion of a cylindrical sheath that accommodates a treatment instrument. The blood flow detection device according to claim 1, wherein the blood flow detection device is disposed.
  7. The blood according to claim 5 or 6, wherein the information notification unit includes a combining circuit unit that combines the visual information with an optical image captured by the endoscope and outputs the combined image to a display unit. Flow detection device.
PCT/JP2009/067348 2008-10-07 2009-10-05 Bloodstream detecting device WO2010041629A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008-260926 2008-10-07
JP2008260926 2008-10-07

Publications (1)

Publication Number Publication Date
WO2010041629A1 true WO2010041629A1 (en) 2010-04-15

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Application Number Title Priority Date Filing Date
PCT/JP2009/067348 WO2010041629A1 (en) 2008-10-07 2009-10-05 Bloodstream detecting device

Country Status (1)

Country Link
WO (1) WO2010041629A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104188621A (en) * 2014-09-26 2014-12-10 吴江市江南不锈钢器材有限责任公司 Metal hose detecting and clamping device

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH07505791A (en) * 1991-11-08 1995-06-29
JP2006068407A (en) * 2004-09-06 2006-03-16 Pentax Corp High frequency treatment tool for endoscope
JP2006130073A (en) * 2004-11-05 2006-05-25 Olympus Corp Ultrasonic trocar
JP2006212453A (en) * 1992-06-04 2006-08-17 Olympus Corp Tissue suture ligator
JP2008522755A (en) * 2004-12-09 2008-07-03 ザ ファウンドリー, インコーポレイテッド Aortic valve repair

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07505791A (en) * 1991-11-08 1995-06-29
JP2006212453A (en) * 1992-06-04 2006-08-17 Olympus Corp Tissue suture ligator
JP2006068407A (en) * 2004-09-06 2006-03-16 Pentax Corp High frequency treatment tool for endoscope
JP2006130073A (en) * 2004-11-05 2006-05-25 Olympus Corp Ultrasonic trocar
JP2008522755A (en) * 2004-12-09 2008-07-03 ザ ファウンドリー, インコーポレイテッド Aortic valve repair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104188621A (en) * 2014-09-26 2014-12-10 吴江市江南不锈钢器材有限责任公司 Metal hose detecting and clamping device
CN104188621B (en) * 2014-09-26 2016-01-20 吴江市江南不锈钢器材有限责任公司 Detecting one metal hose gripping means

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