JP2004261357A - Capsule type medical device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a capsule type medical device capable of smoothly introducing a capsule into a target observation region and suitable for the detailed observation of a specific region. <P>SOLUTION: An ultrasonic unit 4 equipped with an ultrasonic vibrator 3 is arranged at a predetermined position in the capsule 1 for constituting an ultrasonic capsule 10 and an ultrasonic transmission medium 5 is sealed in the periphery of the ultrasonic vibrator 3. A guide wire insertion port 6 through which a guide wire 11 is inserted is formed on the front side in the advance direction of the capsule 1. The opening 6a on one end side of the guide wire insertion port 6 is formed in the almost central part of the semispherical end part of the capsule 1 and the opening 6b on the other end side is formed on the side peripheral surface of the capsule 1. The ultrasonic unit 4 is mainly constituted of a vibrator holding member 7 having the ultrasonic vibrator 3 arranged thereto, a drive motor 2 having a shaft part 2a, an encoder 8 for detecting the rotation of the drive motor 2 and a slip ring part 9 to which the echo signal received by the ultrasonic vibrator 3 is transmitted through a brush not shown in the drawing. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a capsule medical device in which a device for performing a medical operation such as observation, diagnosis, or treatment is arranged in a capsule sent into a body cavity.
[0002]
[Prior art]
In recent years, by inserting an elongated insertion portion, an endoscope capable of observing, diagnosing, and treating the inside of a body cavity and the like through an observation optical system or an ultrasonic vibrator provided at a distal end portion of the insertion portion. Mirrors are widely used.
[0003]
An endoscope having an elongated insertion portion such as near the small intestine by arranging a device for performing medical activities such as observation / diagnosis or treatment in a small capsule and having the patient swallow the capsule. However, various capsule-type medical devices have been proposed for the purpose of observing a deep part inside a body cavity, which has been difficult to reach.
[0004]
For example, Japanese Patent Application Laid-Open No. 2001-95755 discloses a capsule endoscope. In this capsule endoscope, the observation site illuminated by the illuminating means during the movement of the lumen portion is imaged on an image sensor through an objective lens, and the electric signal photoelectrically converted by the image sensor is wirelessly installed outside the body. To an image processing apparatus to obtain an endoscopic image for observation and diagnosis.
[0005]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2001-95755 (Pages 3 and 4, FIGS. 1 to 6)
[0006]
[Problems to be solved by the invention]
However, the capsule endoscope disclosed in Japanese Patent Application Laid-Open No. 2001-95755 moves a lumen portion in one direction using peristalsis or the like in the body. For this reason, it is difficult to predict the time from when the subject swallows the capsule endoscope until the subject reaches the target observation site, and there is a possibility that the timing of observing or diagnosing the target observation site may be missed. In addition, since the traveling speed and direction of the capsule endoscope cannot be controlled, there is a problem that a specific site cannot be observed in detail.
[0007]
The present invention has been made in view of the above circumstances, and has as its object to provide a capsule medical device that can smoothly introduce a capsule into a target observation site and is suitable for detailed observation of a specific site.
[0008]
[Means for Solving the Problems]
The capsule medical device of the present invention is a capsule medical device in which a device for performing a medical action such as observation, diagnosis, or treatment is arranged in a capsule fed into a body cavity,
A guide wire insertion port through which a guide wire is inserted is provided at a predetermined position of the capsule.
[0009]
Further, when a drive motor for driving a device for performing a medical action such as observation, diagnosis, or treatment disposed in the capsule is disposed in the capsule,
A thrust generating means for changing the driving force of the driving motor into the thrust for moving the capsule is provided in the capsule.
[0010]
According to these configurations, a guide wire is placed in advance in the body cavity in the vicinity of a target observation site using an endoscope, and then the guide wire is passed through a guide wire insertion port provided in the capsule. Is swallowed by the subject. As a result, the capsule moves directly inside the body cavity along the guide wire toward the target observation site.
[0011]
Further, by changing the driving force of the drive motor to the propulsion force by the propulsion force generation means, the traveling speed or traveling direction of the capsule can be appropriately changed.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 relate to a first embodiment of the present invention. FIG. 1 is a diagram illustrating the configuration of a capsule medical device, FIG. 2 is a diagram illustrating the operation of the capsule medical device, and FIG. FIG. 4 is a diagram illustrating an example of use of a capsule medical device having a characteristic at a distal end portion, FIG. 4 is a diagram illustrating a capsule medical device having a characteristic on an outer peripheral surface, and FIG. FIG. 6 is a view for explaining an example of an arrangement position of a guide wire insertion port.
[0013]
1A is a view for explaining the configuration of the capsule medical device in the longitudinal direction, FIG. 1B is a cross-sectional view taken along line AA of FIG. 1A, and FIG. 2A is an endoscope. FIG. 2B is a diagram showing a state in which the distal end of a guide wire is arranged near a target observation site via an insertion portion, and FIG. 2B is a diagram illustrating a guide wire placed in a body cavity, and FIG. FIG. 3A is a view for explaining an ultrasonic capsule introduced through a guide wire, FIG. 3A is a view for explaining the distal end side of the guide wire, and FIG. 3B is a view for explaining the operation of the guide wire. 4 (a) is a view for explaining the configuration of the capsule medical device in the longitudinal direction, FIG. 4 (b) is a sectional view taken along the line BB of FIG. 4 (a), and FIG. 6 (a) is a longitudinal side of the capsule. FIG. 6B shows a capsule endoscope in which a guide wire insertion port is formed. FIG. FIG. 6 (c) is a sectional view taken along line DD of FIG. 6 (b), and FIG. 6 (d) is a view along an axis perpendicular to the longitudinal axis of the capsule. FIG. 6 is a view showing a capsule endoscope in which a guide wire insertion port is formed by using a guide wire.
[0014]
In the present embodiment, the capsule medical device is driven to rotate inside the capsule 1 by a drive motor 2 as shown in FIGS. 1A and 1B, so that the ultrasonic waves are orthogonal to the longitudinal axis direction. A description will be given as an ultrasonic diagnostic capsule (hereinafter, abbreviated as an ultrasonic capsule) 10 having an ultrasonic transducer 3 which emits light in the direction in which the ultrasonic wave is emitted.
[0015]
An ultrasonic unit 4 including the ultrasonic vibrator 3 is disposed at a predetermined position inside the capsule 1 of the ultrasonic capsule 10, and ultrasonic waves such as water and liquid paraffin are transmitted around the ultrasonic vibrator 3. The medium 5 is enclosed.
[0016]
A guide wire insertion port (hereinafter abbreviated as a wire port) 6 through which a guide wire 11 described later is inserted is formed on the front side in the traveling direction of the capsule 1. An opening 6a at one end of the wire port 6 is formed substantially at the center of a hemispherical end of the capsule 1, and an opening 6b at the other end is formed on a side peripheral surface of the capsule 1.
[0017]
The ultrasonic unit 4 includes a vibrator holding member (hereinafter, referred to as a housing) 7 on which the ultrasonic vibrator 3 is disposed, the drive motor 2 having a shaft portion 2a that supports the housing 7, It mainly comprises an encoder 8 for detecting the rotation of the motor 2 and a slip ring unit 9 to which an echo signal received by the ultrasonic transducer 3 is transmitted via a brush (not shown).
[0018]
In the capsule 1, for example, a power supply unit (not shown) that supplies power to the drive motor 2 by electromagnetic induction using a coil, and transmission and reception of signals from the slip ring unit 9 and the encoder 8 are performed wirelessly. A wireless transmission / reception unit (not shown) for transmission is provided, and the configuration is such that signals are transmitted and received to and from an ultrasonic observation apparatus (not shown).
[0019]
Further, the ultrasonic observation apparatus includes an ultrasonic observation unit (not shown) that generates real-time echo data based on a signal transmitted from the wireless transmission / reception unit and an echo observation unit that generates echo data based on the echo data generated by the ultrasonic observation unit. An image processing unit for performing image processing such as construction of an ultrasonic tomographic image is provided. The ultrasonic image signal generated by the image processing unit is output to a display device (not shown). As a result, an ultrasonic diagnostic tomographic image for diagnosis is displayed on the screen of the display device.
[0020]
The operation of the ultrasonic capsule 10 configured as described above will be described.
When observing an ultrasonic diagnostic tomographic image of a target observation site using the ultrasonic capsule 10, first, as shown in FIG. 2A, an insertion section 20 of an endoscope having a treatment instrument channel (not shown) is inserted. Insert as close as possible to the target observation site. Then, the distal end 11a of the guide wire 11 is arranged near the target observation site by using the treatment instrument channel of the endoscope. Thereafter, the insertion section 20 is removed from the body cavity, and the guide wire 11 is placed in the body cavity as shown in FIG. 2B. Then, the wire base end 11b of the guide wire 11 is inserted into the wire port 6 provided in the ultrasonic capsule 10.
[0021]
Next, the subject swallows the ultrasonic capsule 10 with the guide wire 11 inserted through the wire port 6. Then, as shown in FIG. 2 (c), the ultrasonic capsule 10 is guided by the guide wire 11 and smoothly moves along the guide wire 11 in the esophagus, the stomach and the like as shown by the broken line. Move to the vicinity of the target observation site where the wire tip 11a is disposed.
[0022]
Thereafter, the ultrasonic capsule 10 escapes from the guide wire 11, moves inside the lumen filled with the ultrasonic transmission medium, passes through the target observation site, and moves further back.
[0023]
At this time, a predetermined electric signal is transmitted from the ultrasonic capsule 10 to the ultrasonic observation device. As a result, an ultrasonic diagnostic tomographic image is displayed on the screen of the display device, and observation and diagnosis can be performed.
[0024]
Thus, by providing the guide wire insertion port through which the guide wire is inserted into the ultrasonic capsule, the ultrasonic capsule can be smoothly moved through the guide wire previously placed near the target observation site using the endoscope. Can be introduced into the target observation site for observation.
[0025]
As shown in FIG. 3A, the inner diameter of the treatment tool channel of the endoscope (not shown) is smaller than the inner diameter of the wire port 6 of the endoscope (not shown) on the wire tip 11a side of the guide wire 11. By providing, for example, a spherical holding portion 11c having a large diameter, the ultrasonic capsule 10 reaching the holding portion 11c provided on the guide wire 11 as shown in FIG. Observation is performed in a state in which the ultrasonic capsule 10 is moved forward by peristalsis, or observation is performed in a state where the ultrasonic capsule 10 held by the holding portion 11c is stopped as shown by a solid line by pulling the guide wire 11 back to the hand side. By pulling back the guide wire 11 once the ultrasonic capsule 10 has passed through the target observation site as indicated by the dashed line, for example, the position indicated by the solid line In move, allows the re-observation or the like of the object observation region. When the ultrasonic capsule 10 is collected, the guide wire 11 is pulled back and removed from the oral cavity together with the guide wire 11.
[0026]
By providing the holding portion at the distal end of the guide wire in this manner, the ultrasonic observation in which the ultrasonic capsule arranged on the guide wire is stopped and held, or the purpose of pulling the guide wire back and passing once It is possible to perform detailed observation of the specific site by performing ultrasonic observation or the like of the observation site again.
[0027]
4A and 4B, a projection 12 is formed on the side surface of the ultrasonic capsule 10, and the other end side opening 6b of the wire port 6 is formed on the projection 12. Accordingly, it is possible to reliably prevent the position of the ultrasonic capsule 10 advancing due to peristaltic rotation from changing with respect to the lumen.
[0028]
By providing the holding portion at the distal end of the guide wire in this manner, the ultrasonic observation in which the ultrasonic capsule arranged on the guide wire is stopped and held, or the purpose of pulling the guide wire back and passing once It is possible to perform detailed observation of the specific site by performing ultrasonic observation or the like of the observation site again.
[0029]
Further, as shown in FIG. 5, a hollow string portion 13 having a predetermined rigidity is extended from the base end side of the capsule 1, and the slip ring portion 9, the encoder 8, and the drive motor 2 extend into the hollow string portion 13. The ultrasonic capsule 10 is configured so that the outgoing signal lines 14 are collectively inserted.
[0030]
This allows the ultrasonic capsule 10 to move forward and backward as shown by the arrow C by pushing and pulling the hollow string portion 13 to perform a detailed observation of a specific portion, and to provide a radio wave provided in the capsule 1. The size of the ultrasonic capsule 10 can be further reduced by eliminating the transmission unit and the like.
[0031]
In the above-described embodiment, one end opening 6a of the wire port 6 is formed at the hemispherical end of the capsule 1, and the other end opening 6b is formed at the side surface of the capsule 1. The positions at which the openings 6a and 6b of the port 6 are formed are not limited to those described above. One end opening 6a and the other end opening 6b of the wire port 6 are respectively connected to the capsule 1 as shown in FIG. 6 (b) and 6 (c), a through-hole 6c is provided in the center of the ultrasonic unit 4 by being formed at the hemispherical end of the capsule 1, respectively. Alternatively, as shown in FIG. 6D, the capsule 1 may be formed on a side surface along an axis orthogonal to the longitudinal direction of the capsule 1.
[0032]
In the present embodiment, the capsule medical device is an ultrasonic capsule in which an ultrasonic unit is arranged in a capsule. However, the capsule medical device is not limited to an ultrasonic capsule. An endoscope capsule in which an observation optical system and an illumination optical system are arranged instead of the unit may be used.
[0033]
7 to 9 relate to a second embodiment of the present invention. FIG. 7 is a view for explaining a configuration example of an ultrasonic capsule having a propulsion generating means. FIG. FIG. 9 is a diagram illustrating another configuration example, and FIG. 9 is a diagram illustrating another configuration example of an ultrasonic capsule having a propulsion force generating unit.
9A is a diagram illustrating a configuration in which the driving force of the motor is directly transmitted to the spiral grooved guide wire via the drum, and FIG. 9B is a diagram illustrating the driving force of the motor via the gear train. FIG. 9 (c) is a view for explaining a configuration for transmitting to a drum and a guide wire with a spiral groove via the drum, and FIG. 9 (c) directly transmits the driving force of a drive motor having a different configuration to the guide wire with a spiral groove. FIG. 3 is a diagram illustrating a configuration.
[0034]
The ultrasonic capsule 10 described below is provided with a thrust generating means for changing the thrust for moving the ultrasonic capsule 10 forward and backward with respect to the guide wire 11. The other configuration is the same as that of the first embodiment, and the same reference numerals are given to the same members, and the description is omitted.
[0035]
As shown in FIG. 7, the thrust generating means of the present embodiment is a screw 31 for moving the ultrasonic capsule 10 in a state of submerging in the ultrasonic transmission medium. This screw 31 is arranged at the base end of the shaft 2a protruding from the base end side of the capsule 1.
[0036]
Accordingly, by rotating the drive motor 2 provided on the ultrasonic capsule 10, the ultrasonic transducer 3 is rotated, and the screw 31 is rotated, so that the ultrasonic capsule 10 is filled with the ultrasonic transmission medium. Move in the lumen.
[0037]
In this way, by providing a screw that changes the driving force of the drive motor into a driving force in the ultrasonic capsule, the ultrasonic capsule that submerges in the lumen filled with the ultrasonic transmission medium can be guided by the driving force of the screw with the guide wire. Can be moved along.
As a result, the ultrasonic capsule moves more smoothly along the guide wire, and quickly reaches the target observation site. In addition, by reversing the rotation direction of the drive motor, the ultrasonic capsule can be appropriately moved in the opposite direction in the vicinity of a specific portion to perform detailed observation.
[0038]
As shown in FIG. 8, the thrust generating means in this embodiment is a capsule position changing means which acts on the guide wire 11 to change the position of the ultrasonic capsule 10 with respect to the guide wire 11. The position changing means is a holding roller portion 32 which is disposed in close contact with the guide wire 11. The pinching roller section 32 has a pinching roller 32a having a predetermined frictional force disposed on the capsule 1 and a driving force of the driving motor 2 transmitted through the shaft section 2a as shown by an arrow E. And a moving roller 32b having a predetermined frictional force that rotates. The gap between the nipping roller 32a and the moving roller 32b is set in advance to an interval at which a predetermined propulsive force is generated by nipping the guide wire 11 with a predetermined pressing force.
[0039]
Therefore, by rotating the drive motor 2 provided on the ultrasonic capsule 10 at a predetermined speed, the ultrasonic vibrator 3 is rotated, and the moving roller 32b constituting the nipping roller unit 32 is rotated. Then, the ultrasonic capsule 10 moves by itself with respect to the guide wire 11.
[0040]
As described above, the ultrasonic capsule is provided with the nipping roller unit that applies the driving force of the driving motor to the guide wire to change the driving force to the propulsion force, so that the driving motor is driven to move the moving roller of the nipping roller unit. The ultrasound capsule can be rotated to move it relative to the guidewire.
[0041]
As shown in FIG. 9A, the propulsion force generating means in the present embodiment is a capsule position changing means which acts on the guide wire to change the position of the ultrasonic capsule similarly to FIG. The capsule position changing means includes a guide wire 33 provided with a spiral groove 33a over substantially the entire length, and a spiral groove 34a constantly engaged with the spiral groove 33a rotated by the driving force of the drive motor 2. It is composed of a drum 34 which is a rotating member.
[0042]
Therefore, by rotating the drive motor 2 provided on the ultrasonic capsule 10 at a predetermined speed, the ultrasonic vibrator 3 starts rotating, and the drum portion 34 having the spiral groove 34a rotates. I do. At this time, since the spiral groove 34a of the drum portion 34 meshes with the spiral groove 33a of the guide wire 33, while the drum portion 34 continues to rotate, the ultrasonic capsule 10 Self-propelled.
[0043]
In this manner, the ultrasonic capsule is provided with the guide wire having the spiral groove for converting the driving force of the drive motor into the propulsion force and the drum portion having the spiral groove, and the spiral groove and the spiral groove are always engaged. Due to the state, the drum portion having a spiral groove meshing with the spiral groove is moved relative to the guide wire by rotating the drum portion by driving of the drive motor, and the ultrasonic capsule is moved relative to the guide wire. Can be moved.
[0044]
As shown in FIG. 9B, a gear train 35 including a plurality of gears is provided between the drum portion 34 and the shaft portion 2a of the drive motor 2 to provide a driving force of the drive motor 2. May be transmitted to the drum unit 34. Thus, by appropriately setting the number of teeth of the gear train 35, the speed at which the ultrasonic capsule 10 runs on the guide wire 33 can be set.
[0045]
As shown in FIG. 9C, a guide wire 33 having a spiral groove 33a is inserted through a guide wire insertion port 6 formed at the center of the ultrasonic capsule 10 in the longitudinal axis direction. The ultrasonic capsule 10 is constructed by disposing a linear drive and vibrator rotation motor (hereinafter abbreviated as a second motor) 38 composed of an annular stator 36 and a rotor 37 having a protruding portion 37a. You may.
[0046]
The rotor 37 constituting the second motor 38 has a central through hole 37b through which the guide wire 33 is inserted. The inner peripheral surface of the central through hole 37b is always in a spiral groove 33a of the guide wire 33. A meshing spiral groove 37c is formed. In addition, a housing 7 on which the ultrasonic transducer 3 is disposed is disposed on the protrusion 37a of the rotor 37. Thus, the rotor 37 rotates the ultrasonic vibrator 3, that is, the same operation as that of the shaft portion 2 a and the operation of self-propelling the ultrasonic capsule 10 with respect to the guide wire 33. .
[0047]
Thus, by rotating the drive motor 2 provided on the ultrasonic capsule 10 at a predetermined speed, the ultrasonic vibrator 3 disposed on the protrusion 37a of the rotor 37 starts rotating. At the same time, since the spiral groove 37c formed in the rotor 37 meshes with the spiral groove 33a of the guide wire 33, the ultrasonic capsule 10 self-runs with respect to the guide wire 11.
[0048]
In the present embodiment, the capsule medical device is an ultrasonic capsule in which a drive motor for rotating an ultrasonic vibrator is arranged in the capsule, but the capsule medical device is not limited to the ultrasonic capsule. An endoscope capsule in which an observation optical system and an illumination optical system are arranged instead of the ultrasonic unit in the capsule may be used. When the capsule medical device is an endoscope capsule, a driving motor for generating a propulsive force is installed in the capsule when a propulsive force generating means is required.
[0049]
It should be noted that the present invention is not limited to only the above-described embodiments, and various modifications can be made without departing from the spirit of the invention.
[0050]
[Appendix]
According to the above-described embodiment of the present invention as described in detail above, the following configuration can be obtained.
[0051]
(1) In a capsule medical device in which a device for performing a medical action such as observation, diagnosis, or treatment is arranged in a capsule sent into a body cavity,
A capsule medical device provided with a guide wire insertion port through which a guide wire is inserted at a predetermined position of the capsule.
[0052]
(2) The capsule medical device according to Appendix 1, wherein one end of the guide wire insertion port is formed at a hemispherical end of the capsule, and the other end is formed at a side surface of the capsule.
[0053]
(3) The capsule medical device according to supplementary note 1, wherein a protrusion for stabilizing a posture during movement of the capsule is provided on an outer peripheral surface of the capsule.
[0054]
(4) The capsule medical device according to attachment 3, wherein the other end side opening is formed in the protrusion.
[0055]
(5) The capsule medical device according to supplementary note 1, wherein an opening at one end and an opening at the other end of the guide wire insertion port are formed on a side surface of the capsule.
[0056]
(6) The capsule medical device according to appendix 1, wherein one end side opening and the other end side opening of the guide wire insertion port are respectively formed at hemispherical ends located at both ends of the capsule.
[0057]
(7) The capsule medical device according to appendix 1, wherein one end side opening and the other end side opening of the guide wire insertion port are formed on both side surfaces of an axis orthogonal to a longitudinal direction of the capsule.
[0058]
(8) The capsule medical device according to supplementary note 1, wherein a holding portion having a predetermined size is provided on a distal end side of the guide wire.
[0059]
(9) The capsule medical device according to appendix 1, wherein an elongated hollow cord portion having a predetermined rigidity extends from one hemispherical end of the capsule.
[0060]
(10) The capsule medical device according to supplementary note 9, wherein a signal line extending from a device for performing a medical operation such as observation, diagnosis, or treatment disposed in the capsule is arranged in the hollow cord portion.
[0061]
(11) When a drive motor for driving a device for performing a medical action such as observation, diagnosis, or treatment placed in the capsule is provided in the capsule,
2. The capsule medical device according to claim 1, wherein a thrust generating means for changing a driving force of the driving motor into a thrust for moving the capsule is provided in the capsule.
[0062]
(12) The capsule medical device according to Supplementary Note 11, wherein the propulsion force generating unit is a screw that rotates with a driving force of the driving motor.
[0063]
(13) The capsule medical device according to supplementary note 11, wherein the propulsion force generating unit is a capsule position changing unit that changes a position of the capsule with respect to the guide wire.
[0064]
(14) The capsule medical device according to supplementary note 13, wherein the capsule position changing unit is a holding roller that is disposed in close contact with the guide wire and rotates by the driving force of the driving motor.
[0065]
(15) The capsule position changing means includes a guide wire having a spiral groove provided over substantially the entire length of the guide wire, and a spiral groove which is rotated by the driving force of the drive motor and meshes with the spiral groove. 14. The capsule medical device according to supplementary note 13, wherein the capsule medical device is a formed rotating member.
[0066]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a capsule medical device that can smoothly introduce a capsule into a target observation site and is suitable for detailed observation of a specific site.
[Brief description of the drawings]
FIGS. 1 to 6 relate to a first embodiment of the present invention, and FIG. 1 is a diagram illustrating a configuration of a capsule medical device. FIG. 2 is a diagram illustrating an operation of the capsule medical device. FIG. 4 is a view for explaining an example of use of a capsule medical device having a feature at a distal end portion of a guide wire. FIG. 4 is a view for explaining a capsule medical device having a feature on an outer peripheral surface. FIG. 6 is a view illustrating an example of the arrangement position of a guide wire insertion port. FIGS. 7 to 9 relate to a second embodiment of the present invention, and FIG. FIG. 8 is a diagram illustrating an example of a configuration of an ultrasonic capsule. FIG. 8 is a diagram illustrating another example of a configuration of an ultrasonic capsule having a propulsion force generating unit. FIG. 9 is another configuration example of an ultrasonic capsule having a propulsion force generation unit. [Explanation of reference numerals]
DESCRIPTION OF SYMBOLS 1 ... Capsule 2 ... Drive motor 3 ... Ultrasonic transducer 4 ... Ultrasonic unit 6 ... Guide wire insertion port 10 ... Ultrasound diagnostic capsule 11 ... Guide wire

Claims (2)

In a capsule medical device in which a device for performing medical actions such as observation, diagnosis, or treatment is placed in a capsule sent into a body cavity,
A capsule medical device, wherein a guide wire insertion port through which a guide wire is inserted is provided at a predetermined position of the capsule. When arranging a drive motor for driving a device for performing a medical action such as observation, diagnosis, or treatment arranged in the capsule in the capsule,
2. The capsule medical device according to claim 1, wherein a thrust generating means for changing a driving force of the driving motor into a thrust for moving the capsule is provided in the capsule.

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