JP2003260026A - Medical magnetic induction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a medical magnetic induction device which does not impart unpleasant feeling to a patient and which is small-sized and easily handled. <P>SOLUTION: The (medical) magnetic induction device 1 is formed in a chair shape in which the patient can sit as a patient housing region, and is constituted to have a chair type device main body 1A having a magnetic field generator 2. The device 1 magnetically guides an inserting part of a capsule type medical equipment 10, an endoscope, a catheter, a guide wire or the like by a revolving magnetic field generated by the generator 2. The generator 2 is constituted to be divisible into two of a magnetic field generating part 2A integrated on a base 4, and a magnetic field generating part 2B having a cutout part 11 in which patient's neck and both legs can be inserted and removed. Thus, in the main body 1A, after the patient is sat on the part 2A, the part 2B is mounted, and hence the generator 2 can be simply formed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic induction device for medical use, more specifically, a capsule type medical device, an optical endoscope, and an ultrasonic wave which are inserted into a subject to perform a medical action such as examination, treatment or treatment. The present invention relates to a medical magnetic guide device for magnetically guiding an insertion portion such as an endoscope, an intraperitoneal treatment instrument, and a catheter into a complicated internal duct.

[0002]

2. Description of the Related Art Conventionally, endoscopes (optical endoscopes and ultrasonic endoscopes), catheters, guide wires, etc., are inserted into a body cavity with an insertion portion which is an elongated tubular member, and a target site is inspected.
A medical device to be treated or treated. Further, the capsule medical device as an insertion portion is a swallowable medical device that is swallowed by a patient or the like and passed through a body cavity to inspect, treat, or treat a target site.

The medical instruments such as the endoscope, the catheter, and the guide wire have complicated internal bendings in the body cavity, so that the insertion is time-consuming and complicated unless a person skilled in the insertion work is required. On the other hand, the capsule-type medical device cannot reach the target site or simply passes through it unless it is guided through the duct in the body cavity.

In order to deal with this, for example, Japanese Patent No. 3017770 discloses a medical magnetic guide device for magnetically guiding an insertion portion of the capsule medical device, the endoscope, the catheter, the guide wire or the like. Is proposed. The magnetic induction device for medical use described in Japanese Patent No. 3017770 is provided with a pair of electromagnets that face each other across the patient bed, and the pair of electromagnets are energized to be provided in the insertion portion. The magnetic field acting on the magnet is generated.

The medical magnetic induction device described in Japanese Patent No. 3017770 described above generates a magnetic field by reversing the direction of the current flowing through the set of electromagnets or changing the current. Is changed to guide the insertion portion to a desired target site. However, in the medical magnetic guidance device described in Japanese Patent No. 3017770, the set of electromagnets can be moved in the vertical direction (Z axis) and the horizontal direction (X axis, Y axis) of the patient bed. However, there is a set of electromagnets that generate a magnetic field,
The generated magnetic field can be changed only in the vertical uniaxial direction.

On the other hand, for example, Japanese Patent Laid-Open No. 2001-179700 (P2001-17970)
The magnetic induction device for medical use described in 0A) is proposed to magnetically guide a micromachine such as the capsule medical device by changing a magnetic field to be generated in three axial directions of a vertical direction and a horizontal direction. ing. Japanese Patent Laid-Open No. 2001-179700 (P2001-179700)
The medical magnetic induction device described in A) changes the magnetic field to be generated in the three axial directions of the vertical direction and the horizontal direction, so that it is easy to three-dimensionally guide the insertion portion.

[0007]

However, the above Japanese Patent Laid-Open No. 2001-179700 (P2001-1).
The magnetic induction device for medical treatment described in 79700A) changes a magnetic field to be generated in two axial directions of a vertical direction and a horizontal direction. Therefore, the device is upsized and there is a fear that a patient may feel fear (resistance). In addition, Japanese Patent Laid-Open No. 2001-2001 mentioned above
The medical magnetic induction device described in 179700 (P2001-179700A) is not considered for handling.

The present invention has been made in view of these circumstances, and an object thereof is to provide a small-sized and easy-to-handle medical magnetic induction device that does not give a resistance to a patient.

[0009]

The present invention according to claim 1 relates to a medical magnetic guide device for magnetically guiding an insertion portion which is inserted into a subject and performs a medical procedure such as examination, treatment or treatment. A magnetic field generating means for generating a magnetic field acting on this magnet is integrally formed with a plurality of electromagnets, and the magnetic field generating means is divided or opened / closed. It is characterized by being configured as possible. According to a second aspect of the present invention, in the medical magnetic induction device according to the first aspect, the insertion portion is a capsule medical device, and the magnetic field generating means acts on a magnet provided in the capsule medical device. In addition to guiding the traveling direction in the body cavity, it is a power generation means for moving the capsule medical device in the body cavity. The claim 3 of the present invention is the claim 1.
In the medical magnetic guidance device according to the item (1), the insertion portion is a tubular member such as an endoscope, a catheter, and a guide wire, and the magnetic field generation means acts on a magnet provided in the tubular member to insert it in a body cavity. It is characterized by magnetically guiding the direction. With this configuration, it is possible to realize a small-sized and easy-to-use medical magnetic induction device that does not give a resistance to a patient.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 to 8 relate to a first embodiment of the present invention, FIG. 1 is a perspective view showing a magnetic induction device of the first embodiment of the present invention, and FIG. 1 is a perspective view showing a divided configuration of the magnetic field generation unit in FIG. 1, FIG. 3 is a configuration diagram showing a capsule medical device, FIG. 4 is an explanatory diagram showing the capsule medical device in a rotating magnetic field, and FIG. 5 is moving in the small intestine. 6 is an explanatory view showing the capsule medical device, FIG. 6 is an explanatory view showing the endoscope, FIG. 7 is an explanatory view showing the distal end side of the insertion portion of the endoscope when the insertion direction is changed, and FIG. 8 is magnetic induction. It is a perspective view which shows the modification of an apparatus, FIG.8 (a) is a perspective view of a magnetic induction apparatus when a patient is accommodated, FIG.8 (b) is a division structure of the magnetic field generation part of the same figure (a). FIG.

As shown in FIG. 1, a medical magnetic guide device (hereinafter, simply magnetic guide device) 1 according to a first embodiment of the present invention.
Is formed in a chair shape so that a patient can sit on it as a patient storage area, and has a chair type apparatus body 1A provided with a magnetic field generation unit 2. In the magnetic field generator 2, a pair of electromagnetic coils 3a facing each other forms a Helmholtz coil 3, and three Helmholtz coils 3 are combined to form a stand 4.
The upper part has a substantially cubic shape (see FIG. 2).

The magnetic field generator 2 has a power cable 5 (5
A control unit (not shown) is connected to the three sets of Helmholtz coils 3 via a, 5b). This control unit reverses the direction of the currents applied to the three sets of Helmholtz coils 3 or changes the currents, thereby changing the currents.
Controls to form a rotating magnetic field three-dimensionally.

As a result, the magnetic induction device 1 is
The rotating magnetic field generated by the magnetic field generator 2 acts on a magnet provided in the capsule medical device 10 (see FIG. 3) to guide the traveling direction in the body cavity, and the capsule medical device 10 is kept in the body cavity. Constitutes a power generation means for moving by. Further, the magnetic guiding device 1 uses the rotating magnetic field formed by the magnetic field generating unit 2 to generate an endoscope (see FIG. 6).
A magnet provided in an insertion portion (tubular member) of a catheter, a guide wire, or the like guides the traveling direction in the body cavity. In addition, in FIG. 1, a capsule medical device is depicted as the insertion portion.

Further, the magnetic field generating portion 2 has notched portions 11 formed on the four substantially cubic surfaces so that the patient's neck, both legs and both arms can be freely inserted / removed at portions where the electromagnetic coil 3a does not exist. ing. In FIG. 1, the magnetic field generating unit 2 does not have the notch 11 in the buttocks and the back surface of the patient, but if the electromagnetic coil 3a is not present and the patient is comfortable, the notch 11 may be formed.

The chair-type device body 1A is formed with leg rests 12 for placing both legs of a patient on a lower portion of the magnetic field generator 2 on the table. Therefore, the chair-type device body 1A can place both the legs of the patient on the leg rest 12 when the both legs of the patient are extended from the notch 11, and a user who performs not only the patient but also an examination or the like. It's easy for me.

In the present embodiment, the chair type device body 1 is
A is configured such that the magnetic field generator 2 can be partially divided when necessary. That is, as shown in FIG.
The magnetic field generating section 2A integrated on the table 4 and the magnetic field generating section 2B forming a notch 11 into which the patient's neck and both legs can be inserted / removed are configured to be separable. The magnetic field generation unit 2B is provided with a locking member 13 that is locked to the magnetic field generation unit 2A.

As a result, the chair type device body 1A
Remove the magnetic field generator 2B to remove the magnetic field generator 2B.
After the patient is seated on A, the magnetic field generating section 2B is attached to the notch section 11 while passing through the neck and both legs, and the magnetic field generating section 2 is easily formed by locking with the locking member 13. It is possible to

The magnetic induction device 1 having the above structure is
For example, a patient swallows a capsule-type medical device as an insertion portion, sits on the chair-type device body 1A, and performs a medical procedure such as inspection, treatment, or treatment.

At this time, as described above, the user removes the magnetic field generator 2B from the chair-type device body 1A, allows the patient to sit on the magnetic field generator 2A, and then passes the patient's neck and both legs through the magnetic field. Attach the generator 2B. The user then uses the magnetic field generator 2A of the chair-type device body 1A,
The B power cables 5a and 5b are used by connecting to the control unit.

First, the case where the capsule medical device 10 is used will be described with reference to FIGS. As shown in FIG. 3, the capsule medical device 10 has a built-in permanent magnet (hereinafter, simply referred to as a magnet) 21 for acting on a rotating magnetic field formed by the magnetic field generator 2 of the magnetic induction device 1. The magnet used here is a permanent magnet such as a neodymium magnet, a samarium-cobalt magnet, a ferrite magnet, an iron / chromium / cobalt magnet, a platinum magnet, or an AlNiCo (AlNiCo) magnet. Rare earth magnets such as neodymium magnets and samarium-cobalt magnets have a strong magnetic force and have an advantage that the magnet contained in the capsule can be made small. On the other hand, the ferrite magnet has an advantage that it is inexpensive. Furthermore, platinum magnets have excellent corrosion resistance and are suitable for medical use.

The magnet contained in the capsule is not limited to a permanent magnet, but may be formed of a coil. In this case, the capsule may generate magnetic force in the coil by a current from a power source such as a built-in battery, or may be a method of magnetizing the coil by electric power temporarily stored in a built-in capacitor. Furthermore, the capsule may be generated by an internal coil instead of the built-in power source, and this power is stored in a capacitor to magnetize another coil. In this case, the capsule has no capacity limitation of the built-in battery and can be operated for a long time. The power-generating coil and the magnet coil may be combined.

The capsule type medical device 10 is constituted by including, for example, an image pickup device 23 having an illumination optical system 22 and an objective optical system 23a. Furthermore, the capsule medical device 10 is
It is configured to include a treatment device (not shown) capable of medical treatment such as examination, treatment, or treatment. The treatment section is, for example, a treatment section having a treatment section such as a medication section or forceps capable of spraying a medicine, an ultrasonic treatment section for performing incision / coagulation treatment, a high-frequency electric treatment section, or a heat treatment section. And a laser treatment section.

The capsule-type medical device 10 is provided with a spiral portion 24 having a spiral groove 24a formed on the outer peripheral surface thereof, through which a fluid such as gas or body fluid in a body cavity can communicate. This spiral part 2
4 may be integrally provided on the outer surface of the capsule body 10a, or may be detachably attachable to the capsule body 10a.

Then, the user turns on a power source (not shown) to operate the magnetic induction device 1. Then, the chair-type device body 1A is supplied with current from the controller to the three sets of Helmholtz coils 3 of the magnetic field generator 2, and is controlled so as to form the rotating magnetic field 30 three-dimensionally as shown in FIG. It The rotating magnetic field 30 is schematically illustrated in FIG.

The capsule medical device 10 has a rotating magnetic field 30.
When the magnet 21 acts on, the magnet 21 rotates due to the action of the magnet 21. The capsule medical device 10 can be moved back and forth by converting a rotational force into a propulsive force by a fluid such as gas or body fluid in the body cavity communicating with the spiral groove 24a.

In the capsule medical device 10, the magnet 21 rotates in accordance with the rotation of the rotating magnetic field 30 when the traveling direction is changed, and the magnet 21 rotates so that the rotating plane coincides with the rotating plane of the rotating magnetic field. The direction) is changed.

In this way, the capsule medical device 10
For example, as shown in FIG. 5, it is possible to guide a bent internal duct such as the small intestine 31 to a target site and perform medical treatment such as examination, treatment or treatment.

Next, the case where a medical device such as an endoscope is used will be described with reference to FIGS. 6 and 7. In this example,
The case of using an endoscope will be described. As shown in FIG. 6, in the endoscope 40, a (permanent) magnet 41 for acting on the uniform magnetic field formed by the magnetic field generating unit 2 of the magnetic guiding device 1 is provided at the distal end portion 42a of the insertion portion 42 which is a tubular member. Consists of
The magnet 41 may be built in the insertion portion distal end portion 42a or may be detachably mountable.

Then, the user inserts the insertion portion 42 of the endoscope 40 through the mouth of the patient, for example. At this time, the user turns on a power source (not shown) to operate the magnetic induction device 1. Then, the chair-type device body 1A is controlled by the controller to supply currents to the three sets of Helmholtz coils 3 of the magnetic field generator 2 to form a three-dimensional uniform magnetic field. Then, the endoscope 40 applies the magnet 41 to the uniform magnetic field.
The action of the magnet 41 can change the direction of the insertion portion distal end portion 42a, that is, the insertion direction.

In this way, the endoscope 40 can guide a bent internal duct such as the small intestine 31 to a target portion as shown in FIG. 7, and perform medical treatment such as examination, treatment or treatment. It is possible.

As a result, the magnetic induction device 1 of the present embodiment
Since the magnetic field generation unit 2 is configured to be divisible, the patient can feel the resistance without difficulty and can easily enter the patient storage area, and the effect of being small and easy to handle is obtained.

Further, in the magnetic induction device, the chair-type device body may be constructed such that the magnetic field generating portion is not divisible as shown in FIG. 8 but can be opened and closed. As shown in FIG. 8A, the magnetic induction device 51 is configured to include a chair-type device body 51A in which the magnetic field generation unit 52 is configured to be openable and closable.

That is, the magnetic field generator 52 is shown in FIG.
As shown in the figure, three parts are integrally provided on the table 4, and one of the patient's arms, one of the arms, the neck, and the three parts forming the notch 11 into which both legs can be inserted and removed are respectively formed on the table 4. It can be opened and closed.

As a result, the chair type device main body 51A
After the three parts are opened and the patient is seated, the magnetic field generator 52 is easily closed by closing the three parts while passing the notch 11 through one arm, neck and both legs of the patient. It is possible to form. Therefore, in the magnetic induction device, the magnetic field generator 52 has the chair-type device body 51A.
It is easy to handle because it is integrated into the.

As a result, the magnetic induction device 51 of this modification example.
In addition to obtaining the same effects as those of the first embodiment, the is easier to handle. The chair-type device main body 51A is not provided with the leg rests 12 for placing both legs of the patient, but the leg-placement parts 12 may be provided similarly to the chair-type device main body 1A. .

(Second Embodiment) FIGS. 9 to 12 relate to a second embodiment of the present invention, and FIG. 9 shows a second embodiment of the present invention.
11 is an explanatory view showing the magnetic guiding device according to the embodiment of the present invention, FIG. 10 is a perspective view of the magnetic guiding device when a patient is stored, and FIG.
Is a perspective view showing a modification of the magnetic induction device, and FIG.
12 is an explanatory view showing the operation of the magnetic induction device of FIG.
FIG. 12A is an explanatory view when the capsule medical device is transanally inserted into the patient from the passage of the toilet seat of the magnetic guiding device;
(B) is a perspective view of the same figure (a).

Although the first embodiment is constructed by using the chair type apparatus main body constructed in the chair type, the second embodiment
This embodiment is constructed using a box-shaped container in which the patient is housed in the container. The rest of the configuration is almost the same as that of the first embodiment, so the description thereof will be omitted, and the same configurations will be denoted by the same reference numerals.

That is, as shown in FIG. 9, the magnetic guiding device 61 according to the second embodiment is configured as a bathtub (box-shaped container) in which a patient is stored in a container as a patient storage area.
It is configured to have a box-shaped device body 61A provided with a magnetic field generator 62. The box-shaped device body 61A is configured by providing a toilet seat 63 in which a patient can sit.

The toilet seat 63 is constructed so that the patient can excrete it as it is. Further, this toilet seat 63 has a net (not shown) formed of a magnetic material inside the toilet seat 63, and the capsule medical device 10 described in the first embodiment can be collected as an insertion portion.

Further, the magnetic field generator 62 has the same Helmholtz coil 3 as that described in the first embodiment.
It is configured by combining three sets. The magnetic field generator 62
Out of the three sets of Helmholtz coils 3 in the horizontal direction
Set the container wall 6 of the box-shaped device body 61A facing each other
4 built in.

On the other hand, the magnetic field generator 62 is arranged in the Helmholtz coil 3 arranged in the vertical direction (Z axis) of the patient.
One set of (electromagnetic coils 3a) is opened and closed on the upper side, and the neck of the patient is incorporated into a lid portion 65 having a cutout portion 66 formed therein, and the other is incorporated into the toilet seat 63.

As a result, the box type device body 61A
After opening the lid 65 to allow the patient to enter the container and sit on the toilet seat 63, the lid 65 is closed while passing the patient's neck through the notch 66, as shown in FIG. The magnetic field generator 62 can be easily formed.

Therefore, in the magnetic induction device 61, the Helmholtz coil 3 is attached to the container wall 64 of the box-shaped device body 61A.
Since it is built in, the patient does not feel the presence of the electromagnetic coil 3a, so that the patient can receive medical treatment without any discomfort.

Then, the user uses the box type device body 61.
In the same manner as described in the first embodiment by connecting the power cable 5 of the magnetic field generation unit 62 of A to the control unit, for example, using the capsule medical device 10 as the insertion unit, inspection, treatment, or Can perform medical procedures such as treatment. As a result,
The magnetic guiding device 61 of the second embodiment has the same effect as that of the first embodiment, and can be used by a patient without feeling uncomfortable.

In the magnetic induction device, the box-shaped device body may be configured to be rotatable in two axial directions as shown in FIG. As shown in FIG. 11, the magnetic induction device 71 includes a box-shaped device body 71A in which a box-shaped container 72 is rotatably supported by two rotary shafts 73a and 73b.

In the box-shaped container 72, the Helmholtz coil 3 (electromagnetic coil 3a) forming the magnetic field generating portion 62 has a container wall 64 and a lid portion, as in the second embodiment. 65 and the toilet seat 63. The box-shaped device body 71A is configured by providing a rotation drive unit (not shown) for rotatably driving the two rotation shafts 73a and 73b below the box-shaped container 72.

As a result, the magnetic induction device 71 is
The box-shaped container 72 is rotatably driven by the drive of the rotation drive unit, so that the capsule medical device 10 and the endoscope 4 described in the first embodiment are described.
It is possible to control the direction of gravity with respect to the insertion part such as 0. It should be noted that although not shown, the rotation drive unit is controlled to be driven in synchronization with the rotating magnetic field 30 formed by the magnetic field generation unit 62 under the control of the control unit described in the first embodiment. Has become.

The magnetic induction device 71 is shown in FIG.
As shown in (a), the capsule medical device 10 and the endoscope 4 are transanally trans-anally delivered from the passage 74 of the toilet seat 63 to the patient.
An insertion part such as 0 can be inserted. The toilet seat 6
A suppository or the like may be inserted transanally into the patient from the third passage 74 instead of the insertion portion.

At this time, the magnetic induction device 71 is shown in FIG.
As shown in FIG. 2 (b), the rotation driving unit is driven to rotate while adjusting the rotation angle at which the insertion unit of the capsule medical device 10, the endoscope 40, or the like can be inserted.

As a result, the magnetic induction device 71 of the present modification example.
In addition to obtaining the same effects as those of the second embodiment, it is possible to enter the insertion portion of the capsule medical device 10, the endoscope 40, the suppository, etc. into the patient transanally with ease. Is. In addition, the magnetic induction device 71 of the present modified example is
Since it is possible to shorten the time without passing through the small intestine, it is possible to shorten the total examination time.

(Third Embodiment) FIGS. 13 to 19
14 relates to a third embodiment of the present invention, and FIG. 13 is a perspective view showing a magnetic induction device according to a third embodiment of the present invention, and FIG.
Is an explanatory view of the magnetic guiding device of FIG. 13 as seen from the patient's foot side,
FIG. 15 is a perspective view showing a modified example of the magnetic guiding device, FIG. 16 is an explanatory view of the magnetic guiding device of FIG. 15 seen from the leg side, and FIG.
FIG. 18 is a perspective view showing a further modified example of the magnetic guidance device, and FIG. 18 is an explanatory view showing the operation of the magnetic guidance device in which the patient bed is driven to rotate together with the magnetic field generator by the rotation drive of the rotation drive part. 18 (a) is an explanatory diagram showing the magnetic guiding device in a state where the lower part of the bed-type device body is tilted to the right, the leg rest part of the patient bed is lifted up together with the magnetic field generator, and the backrest part is lowered downward. 18 (b) is an explanatory view showing the magnetic induction device in a state where the lower part of the bed-type device main body is tilted to the left, the leg rest part of the patient bed is attached to the floor together with the magnetic field generation part, and the backrest part is raised upward. Figure, Figure 18
In (c), the lower part of the bed-type device body is tilted in the left-right direction,
FIG. 19 is an explanatory view showing the magnetic guiding device in a state in which the leg rest of the patient bed faces the left side together with the magnetic field generator and the backrest part faces the right side. FIG. 19 shows that the magnetic field generator is fixed by the rotational drive of the rotary drive unit. Fig. 19 (a) is an explanatory diagram showing the operation of the magnetic guidance device in which only the patient bed is rotationally driven without being rotationally driven, and Fig. 19 (a) shows that the lower part of the bed-type device body is tilted to the right,
1 is an explanatory view showing the magnetic guiding device in a state where the leg rest of the patient bed is attached to the floor and the backrest is raised upward; FIG.
9 (b) shows a magnetic induction device in which the lower part of the bed-type device body is tilted to the left, the magnetism generating part does not move, the leg rest part of the patient bed is attached to the floor, and the backrest part is raised upward. It is an explanatory view shown.

In the first and second embodiments, a magnetic field generator is provided in a chair-shaped or box-shaped apparatus main body, but the third embodiment is a patient bed. And a magnetic field generator is provided. Other configurations are the same as those of the first
Since it is almost the same as the embodiment, the description thereof will be omitted, and the same configurations will be denoted by the same reference numerals.

That is, as shown in FIG. 13, the magnetic induction device 81 of the third embodiment is a bed type in which a magnetic field generator 83 is provided in a patient bed 82 where the patient lies down (sleeps) as a patient storage area. The device main body 81A is provided.

The magnetic field generating section 83 is configured to combine two sets of donut-shaped Helmholtz coils 84 (electromagnetic coils 3a) to form a biaxial rotating magnetic field. The magnetic field generator 83 includes two sets of Helmholtz coils 84a,
Of the 84 b, one set 84 a in the horizontal direction is attached to the patient bed 82.
It is provided on the side of.

This horizontal Helmholtz coil 84a
Is fixed to the extension member 85a extending from the side of the patient bed 82, and the other opposite thereto is extended member 85a.
It is rotatably supported by b. One of the vertical Helmholtz coils 84 b is built in the patient bed 82. The other Helmholtz coil 84b opposite to this is integrally provided on the side opposite to the shaft support side of the horizontally openable and closable Helmholtz coil 84a.

The vertical Helmholtz coil 8
4b is provided with a locking member 86 that is locked to the horizontal Helmholtz coil 84a fixed to the extension member 85a when the openable and closable horizontal Helmholtz coil 84a is closed.

As a result, the bed type apparatus body 8 is
1A is shown in FIG. 14 after the patient lies on the patient bed 82.
The horizontal Helmholtz coil 84a, which can be opened and closed, is closed as shown in FIG.
It is possible to easily form the magnetic field generating portion 83 by locking the vertical Helmholtz coil 84b on.

As a result, the magnetic guiding device 81 of the third embodiment is simple in structure because it is constructed by providing the patient bed 82 with the magnetic field generator 83, and it does not give the patient a sense of fear. . The magnetic field generator 83 is configured to form a uniaxial rotating magnetic field by two sets of Helmholtz coils 84 (84a, 84b). For this reason, the magnetic guiding device 81 is designed to change the direction by having the patient change his posture instead of the rotating magnetic fields of the other two axes.

Further, as shown in FIG. 15, the magnetic induction device 9
In the first embodiment, the bed-type apparatus main body 91A includes the patient bed 92 in which the backrest portion 92a and the leg rest 92b can be bent at an arbitrary angle, and the magnetic field generation portion 83 similar to that described in the third embodiment is provided. May be configured.

In the bed-type device body 91A, after the patient lies on the patient bed 92, the backrest 92a and the leg rest 92b of the patient bed 92 are bent at an arbitrary angle to change the patient's posture. Then, as described in the third embodiment, as shown in FIG. 16, the openable / closable horizontal Helmholtz coil 84a is closed and the vertical Helmholtz coil 84b is connected to the relative Helmholtz coil 84a. It is possible to easily form the magnetic field generating portion 83 by being locked. As a result, the magnetic guiding device 91 of the present modification is configured such that the patient bed 9 is
It is possible to change the posture of the patient by bending the second backrest portion 92a and the leg rest portion 92b at an arbitrary angle.

Further, as shown in FIG. 17, the magnetic induction device 1
In 01, the bed type apparatus main body 101A may be configured by providing a rotation drive unit 103 for rotatably driving the patient bed 92 at the lower part of the bed. The magnetic induction device 101 is configured by providing the same magnetic generation unit 83 as that described in the third embodiment in the patient bed 92.

The magnetic induction device 101 having such a configuration
For example, as shown in FIG. 18, the patient bed 92 and the magnetic field generator 83 are integrally driven to rotate. Figure 18 (a)
As shown in FIG.
The lower part of the bed-type apparatus main body 101A is tilted to the right by the rotational drive, and the leg rest 92b of the patient bed 92 is lifted upward together with the magnetic field generator 83, and the backrest 92a is lowered downward. .

Further, as shown in FIG. 18B, in the magnetic induction device 101, the lower part of the bed type apparatus main body 101A is tilted to the left side by the rotational drive of the rotational drive part 103, and the magnetic field generation part 83 and the patient are guided. The leg rest 92b of the bed 92 is attached to the floor, and the backrest 92a is raised upward.

Further, as shown in FIG. 18C, in the magnetic guiding device 101, the lower part of the bed type apparatus main body 101A is tilted in the left-right direction by the rotation driving of the rotation driving part 103, and the magnetic generation part 83 is formed. The leg rest portion 92b of the patient bed 92 faces leftward with respect to the paper surface, and the backrest portion 92a faces rightward.

Further, in the magnetic induction device 101, for example, as shown in FIG. 19, the magnetic field generator 83 may be fixed and not rotationally driven, but only the patient bed 92 may be rotationally driven. As shown in FIG. 19 (a), the magnetic guiding device 101 is configured such that the bed driving apparatus main body 101 is rotated by the rotation driving unit 103.
The lower part of A is tilted to the right, the magnetic field generator 83 does not move, the leg rest 92b of the patient bed 92 is attached to the floor, and the backrest 92a is raised upward. Further, as shown in FIG. 19B, the magnetic guiding device 101 is
By the rotation drive of the rotation drive unit 103, the lower part of the bed type apparatus main body 101A is tilted to the left side, the magnetic field generation unit 83 does not move, the leg rest 92b of the patient bed 92 is attached to the floor, and the backrest 92a is provided. Is in a state of being raised to the upper side. Further, although not shown, only the patient bed can be rotated left and right.

As a result, the magnetic induction device 10 of the present modification example.
1, the relationship between the posture of the patient and the magnetic field generator 83 can be freely changed. Therefore, the magnetic induction device 10 of the present modified example
1 controls the directions of the rotating magnetic field and gravity with respect to the insertion part of the capsule medical device 10 or the endoscope 40, and the operability can be improved.

The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the gist of the invention.

[Additional remarks] (Additional remark 1) In a medical magnetic guide device for magnetically guiding an insertion portion which is inserted into a subject and performs a medical action such as examination, treatment or treatment, at least one of the insertion portions. A magnetic field generating means for generating a magnetic field acting on the magnet is integrally formed with a plurality of electromagnets, and the magnetic field generating means is configured to be split or openable / closable. And medical magnetic induction device.

(Additional Item 2) The insertion portion is a capsule type medical device, and the magnetic field generating means acts on a magnet provided in the capsule type medical device to guide a traveling direction in a body cavity, and the capsule. 2. The magnetic induction device for medical use according to appendix 1, which is a power generation unit for moving the medical device for medical care in a body cavity.

(Additional Item 3) The insertion portion is a tubular member such as an endoscope, a catheter, a guide wire, etc., and the magnetic field generating means acts on a magnet provided in the tubular member to change the insertion direction in the body cavity. The medical magnetic guidance device according to appendix 1, wherein the medical magnetic guidance device is magnetically guided.

(Additional Item 4) The magnetic induction device for medical use according to Additional Item 1, wherein the magnet provided on at least a part of the insertion portion is a ferrite magnet. (Additional Item 5) The medical magnetic induction device according to Additional Item 1, wherein the magnet provided in at least a part of the insertion portion is a rare earth magnet. (Additional Item 6) The medical magnetic induction device according to Additional Item 1, wherein the magnet provided in at least a part of the insertion portion is a platinum magnet.

(Additional Item 7) The magnetic induction device for medical use according to Additional Item 1, wherein the magnet provided in at least a part of the insertion portion is an AlNiCo magnet. (Additional Item 8) The medical magnetic induction device according to Additional Item 1, wherein the magnet provided on at least a part of the insertion portion is an iron / chromium / cobalt magnet. (Additional Item 9) The medical magnetic induction device according to Additional Item 1, wherein the magnet provided in at least a part of the insertion portion is an electromagnetic coil.

(Additional Item 10) The magnetic induction device for medical use according to Additional Item 2, wherein the magnetization direction of the magnet provided in the capsule medical device is a direction orthogonal to the longitudinal axis direction of the capsule body. . (Additional Item 11) The magnetic induction device for medical use according to Additional Item 3, wherein the magnetizing direction of the magnet provided in the insertion portion is a direction coinciding with the longitudinal axis direction of the insertion portion.

(Additional Item 12) The magnetic induction for medical use according to Additional Item 1, 2 or 3, wherein the magnetic field generating means is formed by a plurality of electromagnets that generate magnetic fields in at least two different directions. apparatus. (Additional Item 13) The medical magnetic induction device according to Additional Item 1, 2 or 3, wherein the magnetic field generating means is formed of a plurality of electromagnets that generate magnetic fields in mutually different directions.

(Additional Item 14) The additional field item 1 or 2 or 3 is characterized in that the magnetic field generating means is formed by two or three electromagnets, with one pair of electromagnets facing each other as one set. Medical magnetic induction device. (Additional Item 15) The medical magnetic guidance device according to Additional Item 1, 2 or 3, wherein the magnetic field generating means is substantially cubic.

(Additional Item 16) The magnetic induction device for medical use according to Additional Item 1, 2 or 3, wherein the magnetic field generating means has a patient storage area. (Additional Item 17) The magnetic induction device for medical use according to Additional Item 1, 2 or 3, wherein the magnetic field generating means has a box-like container shape.

(Additional Item 18) The magnetic induction device for medical use according to Additional Item 1, 2 or 3, wherein the magnetic field generating means is integrated with a chair-type base. (Additional Item 19) The medical magnetic induction device according to Additional Item 1, 2 or 3, wherein the electromagnet has a quadrangular shape.

(Additional Item 20) The medical magnetic induction device according to Additional Item 1, 2 or 3, wherein the electromagnet has a donut shape. (Additional Item 21) The additional field item 1 characterized in that the magnetic field generating means is a rotating magnetic field generating means for generating a rotating magnetic field.
Alternatively, the medical magnetic guidance device according to 2 or 3.

(Additional Item 22) The additional item 1 characterized in that the magnetic field generating means is attached to a patient bed.
Alternatively, the medical magnetic guidance device according to 2 or 3. (Additional Item 23) The medical magnetic induction device according to Additional Item 1, 2 or 3, wherein the magnetic field generating means is formed of a pair of electromagnets facing each other, and the pair of electromagnets generate a uniform magnetic field. .

(Additional Item 24) The magnetic induction device for medical use according to Additional Item 5, wherein the rare earth magnet is a samarium cobalt magnet. (Additional Item 25) The magnetic induction device for medical use according to Additional Item 5, wherein the rare earth magnet is a neodymium magnet.

(Additional Item 26) The medical magnetic guiding apparatus according to Additional Item 15, wherein the substantially cubic magnetic field generating means has a patient storage area. (Additional Item 27) The medical magnetic induction device according to Additional Item 17, wherein the box-shaped container-shaped magnetic field generating means has the electromagnet built in a container-shaped wall.

(Additional Item 28) The medical magnetic guidance device according to Additional Item 17, wherein the box-shaped container-shaped magnetic field generating means has a patient storage area. (Additional Item 29) The additional item 1 characterized in that the box-shaped container-shaped magnetic field generating means is provided with a toilet-like chair inside the container.
7. The magnetic induction device for medical use according to 7.

(Additional Item 30) One of the plurality of electromagnets, one of which has a toilet seat shape.
The magnetic induction device for medical use according to 1. (Additional Item 31) The medical magnetic induction device according to Additional Item 17, wherein the box-shaped container-shaped magnetic field generating unit is provided with a rotation driving unit that is rotationally driven to rotate.

(Additional Item 32) The medical magnetic guiding apparatus according to Additional Item 18, wherein the chair is provided with a rotation driving means for rotatably driving the chair. (Additional Item 33) An additional item 2 characterized in that the patient bed is provided with a rotation driving means for rotationally driving the patient bed.
2. The medical magnetic induction device according to 2. (Additional Item 34) The magnetic induction device for medical use according to Additional Item 30, wherein the toilet bowl-shaped chair is provided with an introducing unit that introduces the capsule medical device from the anus of a patient.

[0085]

As described above, according to the present invention, it is possible to realize a small-sized and easy-to-use medical magnetic induction device which does not give a resistance to a patient.

[Brief description of drawings]

FIG. 1 is a perspective view showing a magnetic induction device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a divided configuration of a magnetic field generation unit of FIG.

FIG. 3 is a block diagram showing a capsule medical device.

FIG. 4 is an explanatory diagram showing a capsule medical device in a rotating magnetic field.

FIG. 5 is an explanatory view showing a capsule-type medical device moving in the small intestine.

FIG. 6 is an explanatory view showing an endoscope.

FIG. 7 is an explanatory view showing the distal end side of the insertion portion of the endoscope when the insertion direction is changed.

FIG. 8 is a perspective view showing a modified example of the magnetic induction device.

FIG. 9 is an explanatory diagram showing a magnetic induction device according to a second embodiment of the invention.

FIG. 10 is a perspective view of the magnetic guidance device when a patient is stored therein.

FIG. 11 is a perspective view showing a modification of the magnetic guiding device.

FIG. 12 is an explanatory diagram showing the operation of the magnetic induction device of FIG. 11.

FIG. 13 is a perspective view showing a magnetic induction device according to a third embodiment of the present invention.

FIG. 14 is an explanatory view of the magnetic guiding device of FIG. 13 viewed from the patient's foot side.

FIG. 15 is a perspective view showing a modified example of the magnetic induction device.

16 is an explanatory view of the magnetic guiding device of FIG. 15 viewed from the leg side.

FIG. 17 is a perspective view showing a further modification of the magnetic induction device.

FIG. 18 is an explanatory diagram showing an operation of the magnetic guiding device in which the patient bed is rotationally driven together with the magnetic field generator by rotationally driving the rotational drive unit.

FIG. 19 is an explanatory diagram showing an operation of the magnetic guidance device in which the magnetism generating unit is fixed by the rotational drive of the rotational drive unit and is not rotationally driven, and only the patient bed is rotationally driven.

[Explanation of symbols]

1 ... (medical) magnetic induction device 1A ... Chair type device body 2 (2A, 2B) ... Magnetic field generator 3 ... Helmholtz coil 3a ... Electromagnetic coil 4 ... stand 10… Capsule type medical device 10a ... Capsule body 21, 41 ... (permanent) magnets 24 ... Spiral part 24a ... spiral groove 30 ... Rotating magnetic field 40… Endoscope 42 ... Insertion part (tubular member)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) A61M 25/00 450Z (72) Inventor Takeshi Yokoi 2-43-2, Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. Incorporated (72) Inventor Hitoshi Mizuno 2-43-2 Hatagaya, Shibuya-ku, Tokyo F-Term (reference) within Olympus Optical Co., Ltd. (reference) 4C061 FF50 GG22 4C167 AA01 AA28 AA32 AA77 BB02 BB07 BB14 BB26 BB40 BB44 CC04 CC08 CC29 DD01 GG50

Claims (3)

[Claims] 1. A medical magnetic induction device for magnetically guiding an insertion portion that is inserted into a subject to perform a medical procedure such as examination, treatment, or treatment, wherein a magnet provided in at least a part of the insertion portion is used. On the other hand, magnetic field generation means for generating a magnetic field acting on this magnet is integrally formed by a plurality of electromagnets, and the magnetic field generation means is configured to be divided or openable / closable. apparatus. 2. The capsule medical device, wherein the insertion section is a capsule medical device, and the magnetic field generating means acts on a magnet provided in the capsule medical device to guide a traveling direction in a body cavity. The medical magnetic guidance device according to claim 1, wherein the magnetic induction device is a power generation means for moving the inside of the body cavity. 3. The insertion portion is a tubular member such as an endoscope, a catheter, a guide wire, and the magnetic field generating means acts on a magnet provided in the tubular member to magnetically change the insertion direction in the body cavity. The medical magnetic guidance device according to claim 1, wherein the magnetic guidance device is guided.