JP5196322B2 - Magnetic stimulator for urinary incontinence treatment - Google Patents

Description

  The present invention relates to a magnetic stimulation apparatus for treating urinary incontinence by applying a magnetic field to an affected part of a patient from the outside, and in particular, efficiently cools the heat generated by the magnetic generation part and reduces noise leakage to the outside of the apparatus. The present invention relates to a magnetic stimulation apparatus for treating urinary incontinence.

  Conventionally, as a method for treating urinary incontinence, electrical stimulation therapy in which a stimulation electrode is attached to a living body and an electric pulse is given is well known. In addition, a pulsed magnetic field is repeatedly given to a patient so that an eddy current is applied to a predetermined part of the body. Magnetic stimulation therapies that generate and treat are also well known.

  In the former electrical stimulation therapy, it is necessary to attach the electrode directly to the patient's skin, which causes discomfort and shame for the patient. On the other hand, since the latter magnetic stimulation therapy can be performed non-invasively while wearing clothes, it is easy for patients to receive treatment, but in order to generate a magnetic field, it is necessary to pass a large current through the magnetic stimulation coil. Generates heat. Further, although the coil receives a force due to the Lorentz force, since the current flowing through the coil is a pulse current, the coil vibrates and generates noise.

  In order to solve the problem of heat generation of the coil and core in the magnetic stimulation therapy, the present applicant has proposed an air cooling device for a coil for urinary incontinence treatment in which forced cooling is performed using a blower (see Patent Document 1). ). This device has a box in which a box top plate is electrically insulating and non-magnetic, and has a side leg portion directed toward the box top plate at the front and rear, and a core around which a coil is wound. A first vent is formed on the side plate, a blower is attached to the vent, a second vent is formed on the box side plate, and the first and second via the coil and the core. An air flow path is formed between the vents. According to this, forced air cooling is efficiently performed on the coil and the core by exposing the coil and the core to an external air flow generated by the blower in the box.

  In order to solve the above-described noise problem, the applicant of the present invention has provided a urine provided with means for blocking or preventing the sound generated from the magnetic stimulation coil, which is provided around the magnetic stimulation coil or on the outer surface of the coil. An incontinence treatment device has been proposed (see Patent Document 2, in particular, paragraph 0014 and FIG. 1). Specifically, the stimulation coil is housed in a soundproof box that houses a sound insulation material, and the sound generated from the stimulation coil is prevented from reaching the outside. Patent Document 2 also shows a configuration in which cooling water and other refrigerants circulate in the stimulation coil to prevent the stimulation coil from becoming high temperature.

  In the case of a coil with a core through which a pulse current flows, the temperature of the core around which the coil is wound rises more than the temperature rise of the coil. This is because heat is generated by eddy current flowing through the core, and heat is difficult to escape because the core is surrounded by a heat generating coil.

  In the device described in Patent Document 1, as shown in FIG. 3 of the same document, the air flowing in from the vent on the side of the box cools the end surface of the core and passes through the space between the coil and the core. The coil and the core are cooled, but most of the air flowing in from the vents escapes downward between the coil and the box side plate having a low flow resistance, and cooling of the core that generates a large amount of heat is insufficient. Has the problem.

  As for soundproofing and vibrationproofing, the noise generated by the coil is directly radiated to the outside through the vents on the side and bottom of the box, and via a spacer between the core end face and the box top plate. Since the vibration of the coil is transmitted to the box upper plate and the seating portion, it is difficult to say that it is considered.

  The device described in Patent Document 2 considers cooling of the coil and reduction of noise. However, regarding cooling of the coil, the configuration of circulating the refrigerant in the coil makes the shape of the coil complicated, and cooling is also performed. The cooling device becomes large, such as the need for a unit, which is not practical.

  Regarding soundproofing, the stimulation coil is housed in a soundproofing box containing a sound insulation material inside, but this is also impractical because of the combination with the cooling device that circulates the refrigerant in the coil. Also, no specific configuration is described.

  In addition, the coil soundproof structure described in Patent Document 2 may be applied to the coil and core air cooling device described in Patent Document 1, but the coil and core described in Patent Document 1 may be used. The cooling effect cannot be obtained only by placing the soundproof box described in Patent Document 2.

  The present invention has been made in view of the above-mentioned problems in the conventional magnetic stimulation apparatus for treating urinary incontinence, and an object thereof is to appropriately cool the heat generated by the coil and the core with a simple configuration. At the same time, it is an object of the present invention to provide a magnetic stimulation device for treating urinary incontinence capable of reducing noise generated by vibration during magnetic stimulation.

  The present invention employs forced air cooling by a fan, which does not become a major factor for the heat generation of the coil and the core. In order to increase the cooling effect, it is necessary to increase the flow rate of the cooling air and increase the flow velocity. To that end, it is only necessary to use a large fan to enlarge the air intake and air intake, Noise generated from the coil leaks directly to the outside. Also, fan noise cannot be ignored. Therefore, according to the present invention, the coil and the core are covered with a double box to increase the air flow velocity in the portion that generates heat, thereby improving the cooling effect and minimizing the leakage of noise to the outside.

  In the magnetic stimulation device for urinary incontinence treatment according to the present invention, a coil is wound so that a first gap is sandwiched between cores whose core ends are directed upward, and magnetism capable of generating a magnetic flux upward from the core ends. A stimulating mechanism and a magnetic stimulating mechanism are arranged so as to cover the whole, and are provided with a top surface, a side surface, and a bottom surface made of a non-magnetic material, and the top surface faces the core end. The first gap is opened to communicate with the outside, and the space between the magnetic stimulation mechanism portion and the side surface portion is further opened to communicate with the outside. A first housing that houses the magnetic stimulation mechanism portion, and a patient's diseased portion that is arranged so as to cover the entire first housing and is made of a non-magnetic material. An upper surface portion, a side surface portion, and a bottom surface portion that are in contact with the upper surface portion, An upper surface space is formed opposite to the upper surface portion of the housing, and a side surface space is formed opposite to the side surface portion and the side surface portion of the first housing, and the upper surface space and the side surface portion are formed. A second housing for housing the first housing configured to communicate with a space; a bottom surface portion of the first housing; and a bottom surface portion of the second housing; An air exhaust port for exhausting air in the first housing in communication with a first gap and a space between the magnetic stimulation mechanism and the side surface of the first housing; An air intake port that is formed in the second housing to take in external air and communicates with the upper surface space, the air intake port, the upper surface space, and the first air space. And a fan provided to exhaust air from the air exhaust port through the first air gap and the second air gap, Narrow voids and the total cross-sectional flow area of said second narrow gap, characterized in that total are configured to be smaller than the cross-sectional flow area of the inlet the air (Claim 1).

  In the magnetic stimulation device for urinary incontinence treatment according to the present invention, the upper surface portion of the second casing is made of a material having rigidity and sound insulation (Claim 2).

  In the magnetic stimulation device for urinary incontinence treatment according to the present invention, the side surface space has a curved portion that prevents the progress of sound in a path between the air intake and the upper surface space. (Claim 3).

  The magnetic stimulation apparatus for treatment of urinary incontinence according to the present invention has a duct for guiding the air discharged by the fan, and the duct includes a bent portion that is bent (claim 4).

  In the magnetic stimulation device for urinary incontinence treatment according to the present invention, a sound absorbing material that does not prevent ventilation is provided in the space between the magnetic stimulation mechanism and the side surface of the first housing, and in the side surface space. It is filled (Claim 5).

  The magnetic stimulation device for treatment of urinary incontinence according to the present invention further includes heat radiating means provided on the downstream side of the air outlet and thermally coupled to the core to transmit heat of the core to the heat radiating means. Heat transfer means is provided (Claim 6).

According to invention of Claim 1, there exist the following effects.
(A) Since the sum of the flow cross-sectional areas of the first gap and the second gap is configured to be smaller than the sum of the flow cross-sectional areas of the air intake, the flow velocity of the air passing through the first and second gaps As a result, the temperature rise of the core around which the coil is wound can be efficiently suppressed.
(B) Since the second gap is provided and air is allowed to flow from the upper surface gap to the magnetic stimulation mechanism portion, the air flowing between the magnetic stimulation mechanism portion and the side surface portion of the first housing is limited, The flow rate of the air flowing through the gap 1 is sufficiently secured, and the temperature rise of the core around which the coil is wound can be efficiently suppressed.
(C) Since the upper surface gap is provided, the flow velocity of air passing therethrough is increased, the core end and the coil upper end can be efficiently cooled, and the distance between the magnetic stimulation mechanism and the patient is reduced. Therefore, the magnetic flux can be effectively applied to the patient.
(D) Since the magnetic stimulation mechanism part, which is a noise generation source, has a double box structure covered with the first housing and the second housing, noise leaking to the outside can be reduced.

  According to invention of Claim 2, it can suppress that a noise and a vibration leak to a patient side as much as possible.

  According to the invention of claim 3, since the noise is attenuated at the curved portion, the noise leaking from the air intake port to the outside can be reduced.

  According to the invention of claim 4, since the noise is attenuated at the bent portion, it is possible to reduce the noise from the side of discharging the air to the outside.

  According to the fifth aspect of the present invention, the magnetic stimulation mechanism can be efficiently cooled without impeding ventilation by the sound absorbing material, and the noise that is absorbed by the sound absorbing material can be effectively suppressed.

  According to the sixth aspect of the present invention, the heat of the core is transmitted to the heat radiating means to dissipate heat, so that the cooling can be performed more effectively.

1 is a partial cross-sectional front view showing a first embodiment of a magnetic stimulation device for urinary incontinence treatment according to the present invention. 1 is a partial cross-sectional side view showing a first embodiment of a magnetic stimulation device for treatment of urinary incontinence according to the present invention. 1 is a partial plan view showing a first embodiment of a magnetic stimulation apparatus for urinary incontinence treatment according to the present invention. It is a figure which shows the modification of the 2nd space | gap in 1st Embodiment of the magnetic stimulation apparatus for urinary incontinence treatment based on this invention, (a) is a partial top view, (b) is X- of (a). It is X sectional drawing. 1 is an electric circuit diagram showing a circuit configuration in a first embodiment of a magnetic stimulation apparatus for treatment of urinary incontinence according to the present invention. It is a side view of the partial cross section which shows 2nd Embodiment of the magnetic stimulation apparatus for urinary incontinence treatment which concerns on this invention. It is a front view of the partial cross section which shows 2nd Embodiment of the magnetic stimulation apparatus for urinary incontinence treatment which concerns on this invention.

  Embodiments for implementing a magnetic stimulation apparatus for urinary incontinence treatment according to the present invention will be described below with reference to the accompanying drawings. In each figure, the same components are denoted by the same reference numerals, and redundant description is omitted. The magnetic stimulation apparatus for urinary incontinence treatment according to the first embodiment is configured as shown in FIG. 1 and FIG. 2, FIG. 1 is a partially sectional front view, and FIG. 2 is a partially sectional side view. Show. The magnetic stimulation device for urinary incontinence treatment has a chair shape, and includes a backrest part 11, an armrest part 12, and a seat part 13 so that a patient can be treated while sitting on the chair.

  The front end side of the armrest portion 12 and the seat portion 13 are coupled by a front strut 14, and the front strut 14 supports the armrest portion 12. The floor side of the front support 14 is a front leg 15 of the chair. The rear end side of the armrest portion 12 and the seat portion 13 are coupled by a rear strut 16 so that the rear strut 16 supports the armrest portion 12. The floor side of the rear support 16 is a rear leg 17 of the chair.

  A seat surface mounting box 20 that is a second housing is provided below the seat portion 13, and the seat surface mounting box 20 includes a lid 21 that is an upper surface portion, a side plate 20 a that is a side surface portion, and a bottom surface portion. It consists of the base plate 31 which is. The base plate 31 constitutes a bottom surface common to an air cooling box 30 described later. The lid 21 is a seat plate on which the patient sits. For example, the lid 21 has a rigidity sufficient to support the weight of the patient, such as glass fiber reinforced resin, carbon material, or wood, and is non-conductive and non-magnetic. It is made of a material with excellent heat insulation and sound insulation. Further, the side plate 20a and the base plate 31 are made of a material that is nonmagnetic and nonconductive, such as a wooden board, and has excellent heat insulation and sound insulation properties. An air cooling box 30 as a first housing is accommodated in the seating surface mounting box 20. A cushion material 22 is placed and fixed on the upper side of the lid 21.

  The air-cooling box 30 includes an air-cooling box cover 45 that is an upper surface portion, a side plate 30a that is a side surface portion, and a base plate 31 that is a bottom surface portion. The air-cooling box cover 45 and the side plate 30a are nonmagnetic and non-magnetic such as a wooden board. It is made of a conductive material with a high sound insulation effect. The air cooling box 30 houses a magnetic stimulation mechanism 40. As shown in FIG. 2, a coil 42 is wound around the central leg 41c of the E-type core 41, and the coil 42 is energized as described later. Thus, a magnetic field is generated between the core center leg end portion 41b and the core side leg end portion 41a. In the air cooling box 30, the core side leg end 41 a, the core center leg end 41 b, and the upper end of the coil 42 are exposed in the upper opening 46 provided in the air cooling box cover 45. The stimulation mechanism unit 40 is accommodated.

  The coil 42 is wrapped by the coil cover 42a and held by the bobbin 47, and the gap portion 62 is provided between the bobbin 47 and the core center leg 41c, and the gap portion is provided between the coil cover 42a and the core side leg 41d. The center leg 41c of the E-type core 41 is disposed so as to include 61 (FIG. 2). The gaps 61 and 62 correspond to a first gap. The bobbin 47 is fixed to the support base 43 by a screw 49 with a vibration isolating rubber 48 interposed (FIG. 1). The widths of the gaps 61 and 62 are not necessarily the same.

  When the air cooling box cover 45 is installed in the air cooling box 30, the upper opening 46 of the air cooling box cover 45 is located between the periphery of the upper opening 46 and the outer periphery of the upper end of the core side leg end 41 a and the coil 42. The gap 46a is formed. The air gap 46 a corresponds to a second air gap and restricts the air flowing to the space between the magnetic stimulation mechanism 40 and the inner wall of the air cooling box 30. FIG. 3 shows a plan view with the lid 21 removed, showing the gaps 61 and 62 (first gap) and the gap 46a (second gap).

  The second gap can also be configured as shown in FIG. FIG. 4 shows a modification of the second gap. (A) of the same figure is a partial top view of the state which removed the lid | cover 21, (b) shows XX sectional drawing of (a). The second gap is the same as that in the above example at the outer peripheral edge of the core side leg end portion 41 a, but is different from the above example in the upper end portion of the coil 42. That is, the air cooling box cover 45 covers the upper end of the coil 42, and the periphery of the upper opening 46 is set to be positioned directly above the bobbin 47. Therefore, the gap is between the air-cooled box cover 45 and the coil cover 42a or the upper end of the bobbin 47, as shown in FIG. Further, the present invention is not limited to this, and the main point is that the space between the magnetic stimulation mechanism 40 and the inner wall of the air cooling box 30 is cooled and at the same time the air flowing into the space is restricted.

  With this configuration, the upper part of the air cooling box cover 45 and the air discharge port 34 (described later) communicate with each other only through the gaps 61, 62, and 46a. The sum of the flow cross-sectional areas of the gaps 61, 62, and 46a is set to be smaller than the sum of the flow cross-sectional areas of the air intake ports 25 described later.

  The E-type core 41 is fixed on the support base 43 with bolts 44. The support base 43 is fixed to a base plate 31 constituting a common bottom surface portion of the seat mounting box 20 and the air cooling box 30 with screws 33 with vibration-proof rubber 32 interposed.

  An air discharge port 34 is formed at a substantially central portion of the base plate 31 and vertically below the E-type core 41 and the support base 43. A fan 35 is provided below the air discharge port 34. ing. Further, a side surface space 24 is formed between the outer side surface 36 of the air cooling box 30 and the inner side surface 23 of the seat surface mounting box 20, and the bottom base plate 31 of the side surface space 24 has an air intake. An inlet 25 is drilled.

  The lid 21 is disposed in close proximity to the air cooling box cover 45, and an upper surface space 26 is formed between the lid 21 and the air cooling box cover 45. The upper surface space 26 is sufficiently narrow so that the lid 21 does not contact the air cooling box cover 45 in a state where the patient is sitting on the seat 13.

  The side surface space 24 is filled with a flexible sound absorbing material 27a made of glass wool, urethane foam or the like that is air permeable and does not impede ventilation, and a part of the sound absorbing material 27a allows air flow paths. 28 is formed. The flow passage 28 is formed with a curved portion 29 that hinders the progress of sound, thereby suppressing noise from leaking through the air intake 25. In addition, a sound absorbing material 27b made of urethane foam or the like is attached to the inner wall surface of the air cooling box 30, and glass wool or the like is also formed in the space between the inner wall of the air cooling box 30 and the magnetic stimulation mechanism 40. A flexible sound absorbing material 27c made of urethane foam or the like is filled.

  A duct 51 is disposed below the fan 35, and the duct 51 includes a bent portion 52 that bends from the vertical direction to the back surface of the chair. It is connected to the.

  In the device installation section 53, an electric device 55 such as a power supply circuit configured by a capacitor or the like and supplying a current to the coil 42 is fixedly installed. An exhaust port 56 is formed on the back side of the chair in the device installation unit 53. The exhaust port 56 is closed by a back cover 57 having a ventilation port constituted by a plurality of slits, for example. A flexible sound absorbing material 27d made of glass wool, urethane foam, or the like is also attached to the inner walls of the duct 51 and the device installation portion 53.

  On the other hand, the electrical configuration including the electric device 55 and the fan 35 is as shown in FIG. That is, a DC power supply unit 72 that generates a necessary potential by converting the AC obtained from the commercial AC power supply 71 to DC is provided. The DC power source 72 supplies power to the fan 35 via the switch 73 and charges the capacitor 74 by applying a voltage in the range of 100 V to 3 KV in accordance with a control signal from the operation unit 70. is there.

  The electric charge charged in the capacitor 74 is configured to be supplied from the thyristor 76a to the coil 42 via the lead 77a via the protective resistor 75. A thyristor 76b that absorbs a reverse voltage when the switch is off is connected between the leads 77a and 77b. These thyristors 76 a and 76 b are controlled to be fired at a required frequency by a switching control unit 79 via a transformer 78.

  The operation unit 70 outputs a control signal for controlling the output voltage of the DC power supply unit 72 according to the operation of the operator, outputs a control signal having a frequency controlled by the switching control unit 79, and further turns on the power. At this time, the switch 73 is closed to output a control signal for operating the fan 35. The operation unit 70 is provided with a timer so that the power-on time can be set.

  In the magnetic stimulation apparatus for urinary incontinence treatment having such a configuration, a current having a set frequency is caused to flow through the coil 42 when the power is turned on and the operation unit 70 is operated. In a patient sitting on the seat 13, magnetic flux enters the body, the pelvic floor muscles and the like are stimulated with eddy currents, and urinary incontinence is treated.

  At this time, the fan 35 rotates and discharges air toward the duct 51. As a result, the air flow is as shown by the arrows in FIGS. That is, the air enters the side space 24 from the air intake 25, hits the back surface of the lid 21, reaches the narrow upper surface gap 26 formed between the lid 21 and the air cooling box cover 45, and increases the speed. The core side leg end 41a, the core center leg end 41b, and the coil 42 that are exposed in the upper opening 46 provided in the air cooling box cover 45 are strongly cooled. The core center leg end portion 41b and the coil 42 generate a large amount of heat, so that efficient cooling is performed as described above.

  The air that has passed through the exposed core-side leg end 41a, the core central leg end 41b, and the coil 42 passes through the narrow gaps 46a, 61, and 62, and is formed on the bottom surface of the air cooling box 30. It reaches the fan 35 from the discharge port 34.

  As described above, since air is configured to flow to the air discharge port 34 only through the gaps 46a, 61, and 62, the magnetic stimulation mechanism 40 and the inner wall of the air cooling box 30 are separated by the narrow gap 46a. Air is restricted to flow into the space between. Therefore, a large amount of air flows through the gaps 62 and 61 to prevent heat from being accumulated inside, and the core central leg 41c and the core side leg 41d that generate particularly high heat are efficiently cooled.

  In addition, since the sum of the flow cross-sectional areas of the gaps 46a, 61, and 62 is configured to be smaller than the sum of the flow cross-sectional areas of the air intake 25, the air passing through the gaps 46a, 61, 62 The flow rate of the water becomes faster and can be cooled efficiently.

  The air rotated by the fan 35 in the direction of the duct 51 reaches the device installation unit 53, cools the electric device 55, and is discharged from the ventilation port of the back cover 57 to the outside of the apparatus.

  As described above, according to the magnetic stimulation device for urinary incontinence treatment of the present embodiment, it is possible to efficiently provide an appropriate cooling effect by adopting a configuration in which the air volume is ensured and the wind speed is increased in a part where the heat is most intense. it can. In addition, since the air exhaust port is provided on the back side of the chair, the exhausted hot air is not sucked in and efficient cooling can be performed. Furthermore, the exhausted hot air does not directly hit the patient and does not cause discomfort.

  Further, the noise generated by the Lorentz force is confined and attenuated by the double box structure of the air cooling box 30 and the seating surface mounting box 20, and the reduction is achieved. In addition, since the lid 21 is excellent in heat insulation and sound insulation, heat is not transmitted to a degree harmful to the patient being treated, and the lid 21 cooperates with the air cooling box cover 45 to air-cool the sound. Sound insulation is also achieved by confining in the box 30 and the seat mounting box 20. Further, the air flow passage 28 formed by a part of the sound absorbing material 27a is formed with a curved portion 29 that prevents the sound from progressing, and further includes a bent portion 52 where the duct 51 is bent. Noise directed to the outside of the apparatus is changed in direction at the curved portion 29 and the bent portion 52 and attenuated to a considerable extent. Further, the noise is also attenuated to a considerable extent by the sound absorbing materials 27a to 27d filled or stuck in each part. Further, since the air intake 25 is installed on the lower side of the chair, and the ventilation port for exhausting air to the outside is installed on the back side of the chair, the noise discharged from the air intake 25 and the ventilation port is directly Does not affect nurses. The air intake 25 may be provided, for example, on the back side of the chair, for example, so as not to face the patient or nurse directly and to suck in the exhausted hot air.

  6 and 7 are configuration diagrams of a magnetic stimulation apparatus for urinary incontinence treatment according to the second embodiment. The same configurations as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In this magnetic stimulation device for urinary incontinence treatment, a heat sink 80 as a heat radiating means is provided on the downstream side of the air outlet 34 formed on the bottom surface of the air cooling box 30. The heat sink 80 is made of a non-magnetic material having high thermal conductivity such as aluminum or copper.

  A pair of heat transfer plates (heat transfer means) 84 made of a non-magnetic material, such as aluminum or copper, is provided on both sides of the E-shaped core 41 with bolts 44. 43 is fixed together. The upper ends of the pair of heat transfer plates 84 are positioned below the core center leg end portion 41b and the core side leg end portion 41a, so that the magnetic flux is linked to the heat transfer plate 84 as much as possible. In this way, the generation of eddy current is suppressed and the temperature rise of the heat transfer plate 84 is suppressed. Between the side surface of the E-type core 41 and the heat transfer plate 84, heat radiation grease such as silicon grease is applied to enhance heat transfer.

  The upper end portion of the column portion 81 of the heat sink 80 is a fixed plate 83 that spreads in the lateral direction, and this fixed plate 83 is connected to the lower end portion of the heat transfer plate 84. This connection also enhances heat transfer by applying thermal grease. The support column 81 of the heat sink 80 extends in the direction of the duct 51 through the air discharge port 34, and a large number of fins 82 are provided on the lower end side of the support column 81 so as to protrude in the lateral direction. It is configured to efficiently dissipate heat by ventilation.

  The fan 35 is installed at the duct port 54 at the boundary between the duct 51 and the device installation unit 53, and allows air to flow from the duct 51 side to the device installation unit 53. Except for these configurations, the configuration is the same as that of the magnetic stimulation device for urinary incontinence treatment according to the first embodiment.

  The magnetic stimulation apparatus for urinary incontinence treatment according to the second embodiment configured as described above operates in the same manner as in the first embodiment. In action, in addition to the action of the first embodiment, the action of the heat transfer plate 84 and the heat sink 80 is added. That is, in the cooling operation, the heat of the core center leg 41 c is transmitted to the heat sink 80 via the heat transfer plate 84 and is radiated from the numerous fins 82. Therefore, the heat dissipation effect is improved. In the soundproofing action, since the heat sink 80 and the like are provided in the air circulation passage such as the duct 51, it is difficult for sound to pass. Therefore, noise leaking to the outside from the ventilation port of the back cover 57 is reduced.

  In the magnetic stimulation device for urinary incontinence treatment according to the second embodiment, the heat sink 80 as described above is provided, so that the heat of the E-type core 41 that is thermally coupled can be efficiently radiated. Cooling can also be performed, and noise is also disturbed by the heat sink 80 and the like, making it difficult to leak to the outside. Therefore, a cooling and soundproofing effect superior to that of the first embodiment can be obtained.

DESCRIPTION OF SYMBOLS 13 Seat part 20 Seat surface mounting box 21 Lid 24 Empty room 25 Air intake 27 Sound absorbing material 29 Curved part 30 Air cooling box 31 Base plate 34 Air exhaust port 35 Fan 40 Magnetic stimulation mechanism part 41 E type core 41a Core side leg end Part 41b Core center leg end part 41c Core center leg 41d Core side leg 42 Coil 45 Air cooling box cover 46 Upper opening 46a Second gap 51 Duct 52 Bending part 53 Equipment installation part 55 Electric equipment 56 Exhaust port 61 First Cavity 62 First Cavity 80 Heat Sink 81 Strut 82 Fin

JP 2001-161830 A JP 11-33003 A

Claims (6)

A magnetic stimulation mechanism that is capable of generating a magnetic flux upward from the core end, in which a coil is wound so as to sandwich the first gap in the core with the core end facing upward;
The magnetic stimulation mechanism portion is disposed so as to cover the entire surface, and includes a top surface portion, a side surface portion, and a bottom surface portion made of a non-magnetic material, and the top surface portion is disposed to face the core end portion. In addition, the first gap is opened to communicate with the outside, and the second gap is opened to communicate the space between the magnetic stimulation mechanism portion and the side surface portion to the outside. A first housing that houses the magnetic stimulation mechanism,
A top surface portion, a side surface portion, and a bottom surface portion, which are arranged so as to cover the whole of the first housing and are made of a nonmagnetic material and are brought into contact with the affected area of a patient, An upper surface space is formed opposite to the upper surface portion of the housing, and a side surface space is formed opposite to the side surface portion and the side surface portion of the first housing, and the upper surface space and the side surface portion are formed. A second housing configured to communicate with the space and housing the first housing;
Formed in the bottom surface of the first housing and the bottom surface of the second housing, and in the space between the first gap and the magnetic stimulation mechanism and the side surface of the first housing. Communicating, an air outlet for discharging air in the first housing;
An air intake outside the first housing and formed in the second housing to take in external air and communicate with the upper surface space;
A fan provided to discharge air from the air outlet through the air intake, the upper surface gap, the first gap, and the second gap;
Comprising
Magnetic stimulation for urinary incontinence treatment, wherein the sum of the flow cross-sectional areas of the first gap and the second gap is smaller than the sum of the flow cross-sectional areas of the air intake port apparatus. 2. The magnetic stimulation apparatus for urinary incontinence treatment according to claim 1, wherein an upper surface portion of the second casing is made of a material having rigidity and sound insulation. The urinary incontinence treatment according to claim 1, wherein the side surface space has a curved portion that prevents a sound from progressing in a path between the air intake and the upper surface space. Magnetic stimulator. 4. The magnetic stimulation device for urinary incontinence treatment according to claim 1, further comprising a duct that guides air discharged by the fan, and the duct includes a bent portion that bends. 5. The space between the magnetic stimulation mechanism and the side surface of the first housing, and the side surface space are filled with a sound absorbing material that does not prevent ventilation. 5. The magnetic stimulation apparatus for treating urinary incontinence according to any one of 4 above. Further, heat dissipation means provided on the downstream side of the air discharge port, and heat transfer means for thermally connecting to the core and transmitting heat of the core to the heat dissipation means are provided. The magnetic stimulation apparatus for urinary incontinence treatment according to any one of claims 1 to 5.

Images