CA2001608C - Magnetic field generating apparatus for medical treatment with a timer - Google Patents
Magnetic field generating apparatus for medical treatment with a timerInfo
- Publication number
- CA2001608C CA2001608C CA 2001608 CA2001608A CA2001608C CA 2001608 C CA2001608 C CA 2001608C CA 2001608 CA2001608 CA 2001608 CA 2001608 A CA2001608 A CA 2001608A CA 2001608 C CA2001608 C CA 2001608C
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- CA
- Canada
- Prior art keywords
- magnetic field
- timer
- time
- generating apparatus
- field generating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N2/00—Magnetotherapy
- A61N2/02—Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Magnetic Treatment Devices (AREA)
Abstract
The present invention relates to a magnetic field generating apparatus for medical treatment with a timer which comprises a timer for setting a time of operation, and is configurated in a manner that displaying operation of the residual time by a numeric display 50 is changed-over blink-ing operation of predetermined numerals when a temperature sensor 54 disposed on a magnetic field generator 20 detects an unusual temperature, and the blinking operation by the numeric display 50 is changed-over to the displaying opera-tion of the residual time when the temperature sensor 54 detects clearance of the unusual temperature. An unusual temperature of the magnetic field generating apparatus for medical treatment can be informed to the user by this blink-ing operation, and therefore a special alarm component such as a conventional alarm buzzer or alarm lamp can be dispensed with, and thereby a reduction in the number of parts and a reduction in the cost can be realized.
Description
SPECIFICATION
Magnetic field generating apparatus for medical treatment with a timer Technical Field The present invention relates to a magnetic field 5 generating apparatus for medical treatment which relieves a disease condition such as stiffness by acting a magnetic field on a human body, and specifically, the present inven-tion relates to a magnetic field generating apparatus for medical treatment with a timer which comprises a timer for 10 setting an operation time.
Technical Background Formerly, this applicant completed as a product a magnetic field generating apparatus for medical treatment which has a construction that a plurality of synthetic resin 15 case bodies are connected wherein a magnetic field generator that a coil bobbin is disposed on an iron core is housed.
This apparatus is such that the magnetic field generator generates an alternating magnetic field when the coil bobbin is energized, and an effect of magnetic treatment is obtained 20 in a manner that one of plate surfaces of the case body is brought in contact with the surface of the human body, and the above-mentioned alternating magnetic field is made to act on exterior from this plate surface.
In this magnetic field generating apparatus for medical treatment, the operation time is set by a timer, and after a lapse of the set time, the operation is stopped automatically to terminate the medical treatment. This lapse of the set time (for example, the residual time is displayed on a 5 numeric display, and the user can devote himself to the medical treatment while making sure of the numeric value on the numeric display as required.
Then, in the above-mentioned magnetic field generator, the surface temperature is raised by energizing the coil 10 bobbin, and this heat can be utilized effectively also for thermal therapy by transmitting it to the case body. However, a rise in the surface temperature of the magnetic filed generator higher than required due to successive use for a long time or the like generates a risk of burn, and as a 15 countermeasure for it, the operation of the magnetic field generator is forcedly stopped when the above-mentioned surface temperature rises higher than a predetermined value, and the generator is dame to wait until a proper temperature state is restored.
However, in this kind of magnetic field generating apparatus for medical treatment, when the operation of the apparatus is stopped in the midst of medical treatment due to a rise in the temperature, the used might misunderstand that the apparatus has gone out of order, or might be mistaken 25 that the operation has been stopped after the set time has 200~608 elapsed. To avoid such a misunderstand or mistake, a rise in the temperature can be notified by incorporating an alarm buzzer or an alarm lamp, but this has problems of necessi-tating a special alarm component, increasing the number of 5 parts and raising the manufacturing cost of the apparatus.
The present invention has been achieved in light of the above-mentioned problems, and purposes to provide a magnetic field generating apparatus for medical treatment with a timer which can inform a rise in the temperature without using a 10 special alarming component by informing a rise in the tem-perature by effectively utilizing a numeric display dis-playing the lapse of time.
Disclosure of the Invention The present invention is of a magnetic field generating 15 apparatus for medical treatment with a timer comprising a magnetic field generator wherein coils are installed on an iron core and a timer for setting the operation time of the magnetic field generator which is provided with a temperature sensor the detecting an unusual temperature disposed on the 20 magnetic field generator, a time setting unit for setting the time of count by the timer, a display control unit which changes-over the display operation of the residual time by a numeric display to the blinking operation of predetermined numerals when the temperature sensor detects an unusual temperature and changes-over the above-mentioned blinking operation to the display operation of the residual time when the temperature sensor detects clearance of the unusual temperature, and a start button for starting the timer.
In accordance with the present invention, the numeric display displays the residual time of the set time during the operation of the magnetic field generating apparatus for medical treatment, but when the temperature sensor is turned on, the display operation of the residual time is changed-10 over to the blinking operation of predetermined numerals, and therefore the user can grasp a rise in the temperature of the magnetic field generator higher than a predetermined value by watching this display.
Accordingly, an unusual temperature can be informed 15 without using a special alarm component such as an alarm buzzer on an alarm lamp for informing a rise in the tem-perature, and there is no fear of incurring an increase in the number of parts and a rise in the cost.
Brief Description of the Drawings Fig. 1 is a partly-broken perspective view showing a mat whereto the present invention is applied.
Fig. 2 is a partly, broken perspective view showing another example of using the mat in Fig. 1.
Fig. 3 is a perspective view showing a first attachment member attached to the mat.
Fig. 4 is a front view showing a magnetic field generat-ing apparatus for medical treatment incorporated in the first attachment member.
Fig. 5 is horizontally-cut cross-sectional view of the magnetic field generating apparatus for medical treatment.
Fig. 6 is a plan view showing one of half-bodies of case as viewed from inside.
Fig. 7 is a front view showing an external appearance of 10 a magnetic field generator.
Fig. 8 is a perspective view showing part of the first attachment member in a magnified fashion.
Fig. 9 is a front view showing a configuration of an operation board.
Fig. 10 is a block diagram showing an example of circuit configuration of a control unit.
Fig. 11 is a flow chart showing controlling procedures by the control unit.
Fig. 12 is a partly-broken perspective view showing 20 another example of the mat whereto the present invention is applied.
The Best Form for Embodying the Invention Fig. 1 shows a mat for magnetic therapy whereto a present invention is applied. This mat has a structure that a mat main body 1 is covered with a cloth cover 2, and on one of the side end surfaces, a power cord 4 provided with a plug 3 at the tip thereof and a lead-out wire 6 provided with an operation board 5 at the tip thereof are installed.
The whole of the mat main body 1 is constituted with a cushion member 7 such as urethane foam, and a tip part lb can be folded onto a main body part la. The main body part la supports the human body ranging from the head to the waist and legs, and the tip part lb supports the tips of feet of 10 the human body. A metal pipe 8 forming the frame of the mat is embedded in the cushion member 7 of the main unit part la, and a publicly known joint mechanism (not illustrated) capable of angular adjustment is installed at the center part of the metal pipe 8, and thereby a joint part lc is formed.
In the cushion member 7 of the main body part la, a recession 9 which is open upward and whose plane shape is rectangular is formed at the position corresponding to the back-touching part, and a first attachment member 10 is fitted into this recession 9, and is constituted so as to be 20 able to be replaces with a second attachment member 11 as shown in Fig. 2 as required.
Each of the first and the second attachment members 10 and 11 has a shape corresponding to the recession 9, and in the fitted state into the recession 9, the top surface of 25 each of the attachement members 10 and 11 and the top surface of the cushion member 7 make the same plane.
The second attachment member 11 consists only of a cushion member 12, and for this cushion member 12, the same material as the cushion member 7 of the main body part la is 5 desirably used to eliminate a feel of incongruity.
The first attachment member 10 has a structure that plural sets of magnetic field generating apparatuses for medical treatment 14 are embedded in a cushion material 13, and as shown in Fig. 3, a die-hole part (not illustrated) is 10 installed between a cushion base member 15 and a cushion lid member 16, and plural sets of magnetic field generating apparatuses for medical treatment 14 are fitted into and supported by this part, and the magnetic field acting surface (as described later) of each magnetic field generating 15 apparatus for medical treatment 14 is exposed above the cushion lid member 16. The cushion base member 15 and the cushion lid member 16 are formed with rubber or urethane foam, but for the cushion lid member 16, the same material as the cushion member 7 of the main unit part la is desirably 20 used to eliminate a feel of inconguity given to the human body.
The above-mentioned each magnetic field generating apparatus for medical treatment 14, as shown in Fig. 4 through Fig. 6, as a structure that a magnetic field 25 generator 20 is disposed in each of a plurality of synthetic resin cases 21, and the respective case bodies are pivot-connected in one line in a manner capable of bending mutually.
Each case body 21 is formed in a manner that the open 5 surfaces of paired half-bodies of case 22 and 23 are made to butt against each other and are fixed at a plurality of positions by screws 24. On the side end surfaces of each case body 21, either protruded shafts 25 and 25 in the up-down direction or bearing holes 26 and 26 are formed, and 10 protruded shaft 25 is engaged with the bearing hole 26 between the adjacent case bodies 21 and 21, and thereby the adjacent case bodies 21 and 21 are pivot-connected in a manner capable of bending and rotating mutually.
As shown in Fig. 7, the above-mentioned magnetic field 15 generator 20, consists of a laminated iron core 30 provided with legs 28 and 29 at the both ends of a base 27 and coil bobbins 31 and 32 fitted to the legs 28 and 29. Each of the coil bobbins 31 and 32 has a structure that coils 37 and 38 are wound around the peripheral surfaces of spools 35 and 36 20 having collars 33 and 34 at the both ends thereof, and when an alternating current flows through each of the coils 37 and 38, an alternating magnetic field is generated from the tips of the legs 28 and 29.
As shown in Fig. 6, on the inner surface of the above-25 mentioned one of the half-bodies of case 23, positioning pieces 39 and 39 for positioning the magnetic field generator 20 and a protruded rod 40 for supporting the magnetic field generator 20 are formed integrally in a protruded fashion, and the bottom surface of the base 27 is supported by the 5 protruded rod 40.
On the inner surface of the other half-body of case 22, recessions (not illustrated) wherein each one of the collars 33 and 34 of the above-mentioned spools 35 and 36 is fitted are installed, and the plate surface of the half-body of case 10 22 comprising these recessions functions as a magnetic field acting surface 41.
The four magnetic field generators 20 are electrically connected in parallel by a lead 19, and the four sets of magnetic field generating apparatus for medical treatment are 15 electrically connected in parallel. As shown in Fig. 3 and Fig. 8, an electrically connecting cord 42 thereof is led out from one side surface of the cushion member 13, being further led out to a terminal box 44 through a connector 43, and the above-mentioned power cord 4 and lead-out wire 6 are led from 20 this terminal box 44. The above-mentioned connector 43 is for connecting/disconnecting each magnetic field generating apparatus for medical treatment 14 to/from the power supply in attaching/detaching the first attachment member 10 to/from the above-mentioned recession 9, and is positioned all the 25 time in a groove 46 installed between the recession 9 and a terminal box housing part 45, and the opening of the groove is closed as required with a cushion lid (not illustrated).
Fig. 9 shows the operation board 5 at the tip of the lead-out wire 6, and on the board surface thereof, a power 5 button 47 for turning on power, a start button 48 for start-ing a timer, a time setting unit 49 for setting a time of the timer, and a numeric display 50 for displaying a residual time of the timer are disposed.
Fig. 10 shows an example of circuit configuration of a 10 control unit for controlling the operation of the above-mentioned magnetic field generating apparatus for medical treatment. This control unit is such that an overcurrent sensor 53, temperature sensors 54 and 55, the power button 47, the start button 48, the numeric display 50, the time 15 setting unit 49, lamps 56, an electromagnetic relay 57 and the like are connected electrically to a micro-processor 51 which is incorporated in the above-mentioned operation board 5 and is a main unit of control and arithmetic operation.
In Fig. 10, an oscillator 52 generates a clock signal, 20 and gives it to the micro-processor 51.
The overcurrent sensor 53 detects whether or not a current larger than a rated value has flowed through this magnetic field generating apparatus for medical treatment 14.
the whole temperature sensors 54 and 55 are, for example, 25 bimetals1 and one of the temperature sensors 54 are installed at a proper place of the iron core 21 of each magnetic field generator 20, and the other temperature sensor 55 is instal-led at a proper place of the power transformer in the opera-tion board 5, and these sensors detect that the surface 5 temperatures of the iron core 21 and the power transformer have risen to predetermined temperatures, respectively. The power button 47, the start button 48, the numeric display 50 and the time setting unit 49 are disposed on the board surface of the operation board 5, and function respectively 10 as mentioned above. The lamps 56 are installed in the power button 47 and the start button 48, and are lit by pushing these buttons. An electromagnetic relay 57 is actuated when the overcurrent sensor 53 or either of the temperature sensors 54 and 55 is turned on, and opens a contact in the 15 passage circuit to each magnetic field generator 20 to stop energizing.
Fig. 11 shows controlling procedures by the above-mentioned micro-processor 51. As is obvious from the follow-ing description, this micro-processor 51 has a function as a 20 timer 51A for counting the operating time of the magnetic field generator 20 and a function as display control unit 51B
for controlling the displaying operation of the numeric display 50.
In Fig. 11, in step 1 (shown by "STl" in the figure), 25 judgement is made on whether or not power button 47 has been pushed.
When this power button 47 is pushed, power is supplied to the control unit, and the micro-processor 51 clears the inner memory area for storing a residual time T (step 2).
5 Next, the micro-processor 51 reads a set time To from the time setting unit 49, and stores it in the corresponding inner memory area, and thereafter makes the numeric display 50 display the set time To as the residual time T (steps 3 and 4).
In the next step 5, an auxiliary timer that the micro-processor 51 has as a function thereof starts, and in the subsequent steps 6 and 6, check is made on whether or not the start button 48 has been pushed before time expiration.
Steps 6, 7, and 8 show the state of waiting for a push-15 ing operation of the start button 48, and if the auxiliarytimer expires, processing moves from step 6 to step 9, turns off power, and returns to the initial waiting state.
If the start button 48 is pushed before expiration of the auxiliary timer, the auxiliary timer is reset in step 10, 20 and subsequently in step 11, judgement is made on whether or not the residual time T is zero. In this case, the residual time T has been cleared in step 2, and therefore the judge-ment in the step 11 results in "YES n r and in the next step 12, the set time To is set in a predetermined area as the 25 residual time T, and in the next step 13, the timer that the 200~608 micro-processor 51 has as a function thereof starts to count time.
In the next step 14, judgement is made on whether or not either of the temperature sensors 54 and 55 has been turned 5 on due to a temperature rise above a predetermined value, and if the judgement results in "NO", in the next step 15, it is made sure that the power button or not one minute has elapsed is judged. Thus, when one minute has elapsed, the judgement in step 16 results in "YES", and one minute is subtracted 10 from the residual time T, and the content of the numeric display 50 is renewed (step 17 and 18). Subsequently in step 19, whether or not the residual time T is zero is checked, and if it is not zero, processing returns to step 14, and similar processing is repeated.
In addition, when the residual time T is judged to be zero in step 19, processing proceeds to step 20, and zero is displayed on the numeric display 50 for a certain time, and thereafter processing returns to the initial waiting state.
Now, assuming the case where any one of the magnetic 20 field generators 20 excessively rises in temperature, the corresponding temperature sensor 54 is turned on, and the judgement in step 14 results in "YESn. In this case pre-determined numerals (for example, "888") are displayed on the numeric display 50, and the numerals blink to inform the user 25 of that the temperature has risen. When such a state takes place, the micro-processor 51 energizes the electromagnetic relay 57 to open the contact, and thereby stops energizing of each magnetic filed generator 20, and stops the counting operation of the timer (step 22).
The temperature is reduced by stopping energizing, but in steps 23 and 24, the micro-processor 51 waits for restoration of the temperature sensor 54 to the original OFF
state due to this reduction in the temperature.
Thus, when the temperature sensor 54 is turned off, the 10 micro-processor 51 reads the residual time T in step 25, and makes the numeric display 50 display the residual time T in place of the blinking display in the subsequent step 26.
Thereafter it returns to step 5, and actuates the auxiliary timer, and waits for a pushing operation of the start button 15 48 for successive operation before time expiration.
In addition, when the operation is continued, the residual time T is not zero, and therefore the judgement in step 11 results in "NOn, and step 12 is skipped over, and processing proceeds to step 13.
Fig. 12 shows a second embodiment of the present invention.
This embodiment has a structure that a sheet member 17 is superposed on the mat main body 1, and the whole thereof is covered by the cloth cover 2, and on the above-mentioned 25 sheet member 17, permanent magnets 18 are disposed at the position corresponding to the magnetic field generating apparatus for medical treatment 14. In accordance with this embodiment, when the magnetic field generating apparatus for medical treatment 14 is operated, the permanent magnets 18 5 are vibrated by the alternating magnetic field thereof, and therefore it can give a moderate massaging action on the human body.
In addition, in the above-mentioned embodiment, a rise in the temperature is notified by display a predetermined 10 numeric value or the numeric display 50 and making this display blink, but this rise can be notified also by another method such that the blinking operation is performed while the residual time is displayed intact.
Utilizability in Industries When the mat having the above-mentioned configuration is used for medical treatment, the power-supplied state is set by pushing the power button 47 on the operation board 5, and a time of the timer is set by slide-operating the knob of the time setting unit 47, and thereafter the respective magnetic 20 field generating apparatus for medical treatment 14 are started all together. Thereby, an alternating magnetic field is generated from each magnetic field generator 20 of each magnetic field generating apparatus for medical treatment 14, and this magnetic field acts on the human body on the mat.
If the magnetic field generator 20 or the power trans-former rises in temperature higher than a predetermined value and the temperature sensor 54 or 55 is turned on, the operation of the magnetic field generating apparatus for 5 medical treatment 14 is stopped, and the operation of the numeric display 50 is changed-over from the displaying operation of the residual time to the blinking operation of predetermined numerals, and the user is informed of that the unusual temperature state has taken place.
Thus, when the temperature is restored to a proper state by stopping the operation, the medical treatment can be resumed by operating the operation board 5, and thereafter, when the set time has elapsed, the operation of each magnetic field generating apparatus for medical treatment 14 is auto-15 matically stopped, and the medical treatment is completed.
In addition, after completing the medical treatment, the cover 2 is opened, the first attachment member 10 is taken out from the recession 9 of the mat main body 1, and the second attachment member 11 is fitted into it, and thereby 20 this mat can be used as a normal mat.
Magnetic field generating apparatus for medical treatment with a timer Technical Field The present invention relates to a magnetic field 5 generating apparatus for medical treatment which relieves a disease condition such as stiffness by acting a magnetic field on a human body, and specifically, the present inven-tion relates to a magnetic field generating apparatus for medical treatment with a timer which comprises a timer for 10 setting an operation time.
Technical Background Formerly, this applicant completed as a product a magnetic field generating apparatus for medical treatment which has a construction that a plurality of synthetic resin 15 case bodies are connected wherein a magnetic field generator that a coil bobbin is disposed on an iron core is housed.
This apparatus is such that the magnetic field generator generates an alternating magnetic field when the coil bobbin is energized, and an effect of magnetic treatment is obtained 20 in a manner that one of plate surfaces of the case body is brought in contact with the surface of the human body, and the above-mentioned alternating magnetic field is made to act on exterior from this plate surface.
In this magnetic field generating apparatus for medical treatment, the operation time is set by a timer, and after a lapse of the set time, the operation is stopped automatically to terminate the medical treatment. This lapse of the set time (for example, the residual time is displayed on a 5 numeric display, and the user can devote himself to the medical treatment while making sure of the numeric value on the numeric display as required.
Then, in the above-mentioned magnetic field generator, the surface temperature is raised by energizing the coil 10 bobbin, and this heat can be utilized effectively also for thermal therapy by transmitting it to the case body. However, a rise in the surface temperature of the magnetic filed generator higher than required due to successive use for a long time or the like generates a risk of burn, and as a 15 countermeasure for it, the operation of the magnetic field generator is forcedly stopped when the above-mentioned surface temperature rises higher than a predetermined value, and the generator is dame to wait until a proper temperature state is restored.
However, in this kind of magnetic field generating apparatus for medical treatment, when the operation of the apparatus is stopped in the midst of medical treatment due to a rise in the temperature, the used might misunderstand that the apparatus has gone out of order, or might be mistaken 25 that the operation has been stopped after the set time has 200~608 elapsed. To avoid such a misunderstand or mistake, a rise in the temperature can be notified by incorporating an alarm buzzer or an alarm lamp, but this has problems of necessi-tating a special alarm component, increasing the number of 5 parts and raising the manufacturing cost of the apparatus.
The present invention has been achieved in light of the above-mentioned problems, and purposes to provide a magnetic field generating apparatus for medical treatment with a timer which can inform a rise in the temperature without using a 10 special alarming component by informing a rise in the tem-perature by effectively utilizing a numeric display dis-playing the lapse of time.
Disclosure of the Invention The present invention is of a magnetic field generating 15 apparatus for medical treatment with a timer comprising a magnetic field generator wherein coils are installed on an iron core and a timer for setting the operation time of the magnetic field generator which is provided with a temperature sensor the detecting an unusual temperature disposed on the 20 magnetic field generator, a time setting unit for setting the time of count by the timer, a display control unit which changes-over the display operation of the residual time by a numeric display to the blinking operation of predetermined numerals when the temperature sensor detects an unusual temperature and changes-over the above-mentioned blinking operation to the display operation of the residual time when the temperature sensor detects clearance of the unusual temperature, and a start button for starting the timer.
In accordance with the present invention, the numeric display displays the residual time of the set time during the operation of the magnetic field generating apparatus for medical treatment, but when the temperature sensor is turned on, the display operation of the residual time is changed-10 over to the blinking operation of predetermined numerals, and therefore the user can grasp a rise in the temperature of the magnetic field generator higher than a predetermined value by watching this display.
Accordingly, an unusual temperature can be informed 15 without using a special alarm component such as an alarm buzzer on an alarm lamp for informing a rise in the tem-perature, and there is no fear of incurring an increase in the number of parts and a rise in the cost.
Brief Description of the Drawings Fig. 1 is a partly-broken perspective view showing a mat whereto the present invention is applied.
Fig. 2 is a partly, broken perspective view showing another example of using the mat in Fig. 1.
Fig. 3 is a perspective view showing a first attachment member attached to the mat.
Fig. 4 is a front view showing a magnetic field generat-ing apparatus for medical treatment incorporated in the first attachment member.
Fig. 5 is horizontally-cut cross-sectional view of the magnetic field generating apparatus for medical treatment.
Fig. 6 is a plan view showing one of half-bodies of case as viewed from inside.
Fig. 7 is a front view showing an external appearance of 10 a magnetic field generator.
Fig. 8 is a perspective view showing part of the first attachment member in a magnified fashion.
Fig. 9 is a front view showing a configuration of an operation board.
Fig. 10 is a block diagram showing an example of circuit configuration of a control unit.
Fig. 11 is a flow chart showing controlling procedures by the control unit.
Fig. 12 is a partly-broken perspective view showing 20 another example of the mat whereto the present invention is applied.
The Best Form for Embodying the Invention Fig. 1 shows a mat for magnetic therapy whereto a present invention is applied. This mat has a structure that a mat main body 1 is covered with a cloth cover 2, and on one of the side end surfaces, a power cord 4 provided with a plug 3 at the tip thereof and a lead-out wire 6 provided with an operation board 5 at the tip thereof are installed.
The whole of the mat main body 1 is constituted with a cushion member 7 such as urethane foam, and a tip part lb can be folded onto a main body part la. The main body part la supports the human body ranging from the head to the waist and legs, and the tip part lb supports the tips of feet of 10 the human body. A metal pipe 8 forming the frame of the mat is embedded in the cushion member 7 of the main unit part la, and a publicly known joint mechanism (not illustrated) capable of angular adjustment is installed at the center part of the metal pipe 8, and thereby a joint part lc is formed.
In the cushion member 7 of the main body part la, a recession 9 which is open upward and whose plane shape is rectangular is formed at the position corresponding to the back-touching part, and a first attachment member 10 is fitted into this recession 9, and is constituted so as to be 20 able to be replaces with a second attachment member 11 as shown in Fig. 2 as required.
Each of the first and the second attachment members 10 and 11 has a shape corresponding to the recession 9, and in the fitted state into the recession 9, the top surface of 25 each of the attachement members 10 and 11 and the top surface of the cushion member 7 make the same plane.
The second attachment member 11 consists only of a cushion member 12, and for this cushion member 12, the same material as the cushion member 7 of the main body part la is 5 desirably used to eliminate a feel of incongruity.
The first attachment member 10 has a structure that plural sets of magnetic field generating apparatuses for medical treatment 14 are embedded in a cushion material 13, and as shown in Fig. 3, a die-hole part (not illustrated) is 10 installed between a cushion base member 15 and a cushion lid member 16, and plural sets of magnetic field generating apparatuses for medical treatment 14 are fitted into and supported by this part, and the magnetic field acting surface (as described later) of each magnetic field generating 15 apparatus for medical treatment 14 is exposed above the cushion lid member 16. The cushion base member 15 and the cushion lid member 16 are formed with rubber or urethane foam, but for the cushion lid member 16, the same material as the cushion member 7 of the main unit part la is desirably 20 used to eliminate a feel of inconguity given to the human body.
The above-mentioned each magnetic field generating apparatus for medical treatment 14, as shown in Fig. 4 through Fig. 6, as a structure that a magnetic field 25 generator 20 is disposed in each of a plurality of synthetic resin cases 21, and the respective case bodies are pivot-connected in one line in a manner capable of bending mutually.
Each case body 21 is formed in a manner that the open 5 surfaces of paired half-bodies of case 22 and 23 are made to butt against each other and are fixed at a plurality of positions by screws 24. On the side end surfaces of each case body 21, either protruded shafts 25 and 25 in the up-down direction or bearing holes 26 and 26 are formed, and 10 protruded shaft 25 is engaged with the bearing hole 26 between the adjacent case bodies 21 and 21, and thereby the adjacent case bodies 21 and 21 are pivot-connected in a manner capable of bending and rotating mutually.
As shown in Fig. 7, the above-mentioned magnetic field 15 generator 20, consists of a laminated iron core 30 provided with legs 28 and 29 at the both ends of a base 27 and coil bobbins 31 and 32 fitted to the legs 28 and 29. Each of the coil bobbins 31 and 32 has a structure that coils 37 and 38 are wound around the peripheral surfaces of spools 35 and 36 20 having collars 33 and 34 at the both ends thereof, and when an alternating current flows through each of the coils 37 and 38, an alternating magnetic field is generated from the tips of the legs 28 and 29.
As shown in Fig. 6, on the inner surface of the above-25 mentioned one of the half-bodies of case 23, positioning pieces 39 and 39 for positioning the magnetic field generator 20 and a protruded rod 40 for supporting the magnetic field generator 20 are formed integrally in a protruded fashion, and the bottom surface of the base 27 is supported by the 5 protruded rod 40.
On the inner surface of the other half-body of case 22, recessions (not illustrated) wherein each one of the collars 33 and 34 of the above-mentioned spools 35 and 36 is fitted are installed, and the plate surface of the half-body of case 10 22 comprising these recessions functions as a magnetic field acting surface 41.
The four magnetic field generators 20 are electrically connected in parallel by a lead 19, and the four sets of magnetic field generating apparatus for medical treatment are 15 electrically connected in parallel. As shown in Fig. 3 and Fig. 8, an electrically connecting cord 42 thereof is led out from one side surface of the cushion member 13, being further led out to a terminal box 44 through a connector 43, and the above-mentioned power cord 4 and lead-out wire 6 are led from 20 this terminal box 44. The above-mentioned connector 43 is for connecting/disconnecting each magnetic field generating apparatus for medical treatment 14 to/from the power supply in attaching/detaching the first attachment member 10 to/from the above-mentioned recession 9, and is positioned all the 25 time in a groove 46 installed between the recession 9 and a terminal box housing part 45, and the opening of the groove is closed as required with a cushion lid (not illustrated).
Fig. 9 shows the operation board 5 at the tip of the lead-out wire 6, and on the board surface thereof, a power 5 button 47 for turning on power, a start button 48 for start-ing a timer, a time setting unit 49 for setting a time of the timer, and a numeric display 50 for displaying a residual time of the timer are disposed.
Fig. 10 shows an example of circuit configuration of a 10 control unit for controlling the operation of the above-mentioned magnetic field generating apparatus for medical treatment. This control unit is such that an overcurrent sensor 53, temperature sensors 54 and 55, the power button 47, the start button 48, the numeric display 50, the time 15 setting unit 49, lamps 56, an electromagnetic relay 57 and the like are connected electrically to a micro-processor 51 which is incorporated in the above-mentioned operation board 5 and is a main unit of control and arithmetic operation.
In Fig. 10, an oscillator 52 generates a clock signal, 20 and gives it to the micro-processor 51.
The overcurrent sensor 53 detects whether or not a current larger than a rated value has flowed through this magnetic field generating apparatus for medical treatment 14.
the whole temperature sensors 54 and 55 are, for example, 25 bimetals1 and one of the temperature sensors 54 are installed at a proper place of the iron core 21 of each magnetic field generator 20, and the other temperature sensor 55 is instal-led at a proper place of the power transformer in the opera-tion board 5, and these sensors detect that the surface 5 temperatures of the iron core 21 and the power transformer have risen to predetermined temperatures, respectively. The power button 47, the start button 48, the numeric display 50 and the time setting unit 49 are disposed on the board surface of the operation board 5, and function respectively 10 as mentioned above. The lamps 56 are installed in the power button 47 and the start button 48, and are lit by pushing these buttons. An electromagnetic relay 57 is actuated when the overcurrent sensor 53 or either of the temperature sensors 54 and 55 is turned on, and opens a contact in the 15 passage circuit to each magnetic field generator 20 to stop energizing.
Fig. 11 shows controlling procedures by the above-mentioned micro-processor 51. As is obvious from the follow-ing description, this micro-processor 51 has a function as a 20 timer 51A for counting the operating time of the magnetic field generator 20 and a function as display control unit 51B
for controlling the displaying operation of the numeric display 50.
In Fig. 11, in step 1 (shown by "STl" in the figure), 25 judgement is made on whether or not power button 47 has been pushed.
When this power button 47 is pushed, power is supplied to the control unit, and the micro-processor 51 clears the inner memory area for storing a residual time T (step 2).
5 Next, the micro-processor 51 reads a set time To from the time setting unit 49, and stores it in the corresponding inner memory area, and thereafter makes the numeric display 50 display the set time To as the residual time T (steps 3 and 4).
In the next step 5, an auxiliary timer that the micro-processor 51 has as a function thereof starts, and in the subsequent steps 6 and 6, check is made on whether or not the start button 48 has been pushed before time expiration.
Steps 6, 7, and 8 show the state of waiting for a push-15 ing operation of the start button 48, and if the auxiliarytimer expires, processing moves from step 6 to step 9, turns off power, and returns to the initial waiting state.
If the start button 48 is pushed before expiration of the auxiliary timer, the auxiliary timer is reset in step 10, 20 and subsequently in step 11, judgement is made on whether or not the residual time T is zero. In this case, the residual time T has been cleared in step 2, and therefore the judge-ment in the step 11 results in "YES n r and in the next step 12, the set time To is set in a predetermined area as the 25 residual time T, and in the next step 13, the timer that the 200~608 micro-processor 51 has as a function thereof starts to count time.
In the next step 14, judgement is made on whether or not either of the temperature sensors 54 and 55 has been turned 5 on due to a temperature rise above a predetermined value, and if the judgement results in "NO", in the next step 15, it is made sure that the power button or not one minute has elapsed is judged. Thus, when one minute has elapsed, the judgement in step 16 results in "YES", and one minute is subtracted 10 from the residual time T, and the content of the numeric display 50 is renewed (step 17 and 18). Subsequently in step 19, whether or not the residual time T is zero is checked, and if it is not zero, processing returns to step 14, and similar processing is repeated.
In addition, when the residual time T is judged to be zero in step 19, processing proceeds to step 20, and zero is displayed on the numeric display 50 for a certain time, and thereafter processing returns to the initial waiting state.
Now, assuming the case where any one of the magnetic 20 field generators 20 excessively rises in temperature, the corresponding temperature sensor 54 is turned on, and the judgement in step 14 results in "YESn. In this case pre-determined numerals (for example, "888") are displayed on the numeric display 50, and the numerals blink to inform the user 25 of that the temperature has risen. When such a state takes place, the micro-processor 51 energizes the electromagnetic relay 57 to open the contact, and thereby stops energizing of each magnetic filed generator 20, and stops the counting operation of the timer (step 22).
The temperature is reduced by stopping energizing, but in steps 23 and 24, the micro-processor 51 waits for restoration of the temperature sensor 54 to the original OFF
state due to this reduction in the temperature.
Thus, when the temperature sensor 54 is turned off, the 10 micro-processor 51 reads the residual time T in step 25, and makes the numeric display 50 display the residual time T in place of the blinking display in the subsequent step 26.
Thereafter it returns to step 5, and actuates the auxiliary timer, and waits for a pushing operation of the start button 15 48 for successive operation before time expiration.
In addition, when the operation is continued, the residual time T is not zero, and therefore the judgement in step 11 results in "NOn, and step 12 is skipped over, and processing proceeds to step 13.
Fig. 12 shows a second embodiment of the present invention.
This embodiment has a structure that a sheet member 17 is superposed on the mat main body 1, and the whole thereof is covered by the cloth cover 2, and on the above-mentioned 25 sheet member 17, permanent magnets 18 are disposed at the position corresponding to the magnetic field generating apparatus for medical treatment 14. In accordance with this embodiment, when the magnetic field generating apparatus for medical treatment 14 is operated, the permanent magnets 18 5 are vibrated by the alternating magnetic field thereof, and therefore it can give a moderate massaging action on the human body.
In addition, in the above-mentioned embodiment, a rise in the temperature is notified by display a predetermined 10 numeric value or the numeric display 50 and making this display blink, but this rise can be notified also by another method such that the blinking operation is performed while the residual time is displayed intact.
Utilizability in Industries When the mat having the above-mentioned configuration is used for medical treatment, the power-supplied state is set by pushing the power button 47 on the operation board 5, and a time of the timer is set by slide-operating the knob of the time setting unit 47, and thereafter the respective magnetic 20 field generating apparatus for medical treatment 14 are started all together. Thereby, an alternating magnetic field is generated from each magnetic field generator 20 of each magnetic field generating apparatus for medical treatment 14, and this magnetic field acts on the human body on the mat.
If the magnetic field generator 20 or the power trans-former rises in temperature higher than a predetermined value and the temperature sensor 54 or 55 is turned on, the operation of the magnetic field generating apparatus for 5 medical treatment 14 is stopped, and the operation of the numeric display 50 is changed-over from the displaying operation of the residual time to the blinking operation of predetermined numerals, and the user is informed of that the unusual temperature state has taken place.
Thus, when the temperature is restored to a proper state by stopping the operation, the medical treatment can be resumed by operating the operation board 5, and thereafter, when the set time has elapsed, the operation of each magnetic field generating apparatus for medical treatment 14 is auto-15 matically stopped, and the medical treatment is completed.
In addition, after completing the medical treatment, the cover 2 is opened, the first attachment member 10 is taken out from the recession 9 of the mat main body 1, and the second attachment member 11 is fitted into it, and thereby 20 this mat can be used as a normal mat.
Claims (6)
1. In a magnetic field generating apparatus for medial treatment with a timer provided with a magnetic field generator 20 constituted in a manner that coil 37 and 38 are installed on an iron core 30, and a timer 51A for setting a time of operation of the magnetic field generator 20, a magnetic field generating apparatus for medical treat-ment with a timer comprising a temperature sensor 54 for detecting an unusual tem-perature which is disposed on the magnetic field generator 20, a time setting unit for setting a time of count by the timer 51A, a time display 50 whereon a residual time of the set time is displayed, a display control unit 51B which changes-over the display operation of the residual time by the numeric display 50 to the blinking operation of predetermined numerals when the temperature sensor 54 detects an unusual temperature, and changes-over said blinking operation to the display operation of the residual time when the temperature sensor 54 detects clearance of the unusual temperature, and a start button 48 for starting the timer 51A.
2. A magnetic field generating apparatus for medical treat-ment with a time in accordance with claim 1, wherein said temperature sensor 54 is a bimetal and is installed on the iron core 30 of the magnetic field generator 20.
3. A magnetic field generating apparatus for medical treat-ment with a timer in accordance with claim 1, wherein said time setting unit 49, said time display 50 and said start button 48 are disposed on an operation board 5 at the tip of a lead-out wire 6 led out from the magnetic field generator 20.
4. A magnetic field generating apparatus for medical treatment with a timer in accordance with claim 1, wherein said timer 51A and said display control unit 51B are con-stituted with a micro-processor 51 operating as a control main unit.
5. A magnetic filed generating apparatus for medical treat-ment with a timer in accordance with claim 1 or claim 4, wherein said display control unit 51B displays predetermined numerals or said numeric display 50 when the temperature sensor 54 is turned on, and changes-over to such a displaying operation that the numerals blink.
6. A magnetic field generating apparatus for medical treatment with a timer in accordance with claim 1 or claim 4, wherein said display control unit 51B displays numerals showing a residual time on said numeric display 50 when the temperature sensor 54 is turned on, and changes-over to such a displaying operation that the numerals blink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2001608 CA2001608C (en) | 1989-10-26 | 1989-10-26 | Magnetic field generating apparatus for medical treatment with a timer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2001608 CA2001608C (en) | 1989-10-26 | 1989-10-26 | Magnetic field generating apparatus for medical treatment with a timer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2001608A1 CA2001608A1 (en) | 1991-04-26 |
| CA2001608C true CA2001608C (en) | 1995-02-28 |
Family
ID=4143403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2001608 Expired - Fee Related CA2001608C (en) | 1989-10-26 | 1989-10-26 | Magnetic field generating apparatus for medical treatment with a timer |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2001608C (en) |
-
1989
- 1989-10-26 CA CA 2001608 patent/CA2001608C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2001608A1 (en) | 1991-04-26 |
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| Date | Code | Title | Description |
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| EEER | Examination request | ||
| MKLA | Lapsed |