CA2386966A1 - Voice and footswitch operated medical chair unit - Google Patents
Voice and footswitch operated medical chair unit Download PDFInfo
- Publication number
- CA2386966A1 CA2386966A1 CA002386966A CA2386966A CA2386966A1 CA 2386966 A1 CA2386966 A1 CA 2386966A1 CA 002386966 A CA002386966 A CA 002386966A CA 2386966 A CA2386966 A CA 2386966A CA 2386966 A1 CA2386966 A1 CA 2386966A1
- Authority
- CA
- Canada
- Prior art keywords
- chair unit
- footswitch
- voice
- speech instruction
- operator
- 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.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/02—Chairs with means to adjust position of patient; Controls therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/10—Parts, details or accessories
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/26—Speech to text systems
Abstract
The present invention is a voice and footswitch operated medical chair unit wherein an operation control of the medical chair unit is executed by a speech instruction from an operator and in response to actuation of a footswitch by the operator. The chair unit has a combination of a transmitting system for detecting a speech instruction given by a sound produced from the operator and for converting the speech instruction to an electric signal and transmitting it and a receiving system for receiving the speech instruction signal; a control computer for activating the chair unit on the basis of the received signal output from the receiving system; a footswitch for executing a starting operation and a continuous control operation in response to a touch or depression made by movement of a foot of the operator; and a mechanism for executing a chair unit operation.
A medical chair unit, e.g. a dental chair unit, according to the present invention dispenses with a switch operation conducted by pressing with a finger when an operator activates the medical chair unit and hence eliminates the danger of contagion or the like.
A medical chair unit, e.g. a dental chair unit, according to the present invention dispenses with a switch operation conducted by pressing with a finger when an operator activates the medical chair unit and hence eliminates the danger of contagion or the like.
Description
DESCRIPTION
Voice and Footswitch Operated Medical Chair Unit Technical Field:
The present invention relates to a voice and footswitch operated medical chair unit activated by speech instructions and in response to actuation of a footswitch.
Background Art:
Conventionally, a dental chair unit uses a touch panel in which figures or symbols of divided items are written on a surface thereof, and each mechanism of the dental chair unit is activated by an operator selectively designating the desired item with his or her finger. To perform a continuous control operation, the operator actuates a footswitch provided separately with his or foot.
During treatment, the dental chair unit is activated to perform various operations such as posture control of the chair, rotation of the handpiece, speed control therefor, and watering. The distance between the operator and the touch panel and the distance between the touch panel and the footswitch are not fixed. The touch panel requires the operator to move in order to touch a desired switch and also needs visual confirmation of the position of the switch. Further, it is troublesome to touch the touch panel when the operator is holding a treatment tool, e.g. an instrument, during operation.
Voice and Footswitch Operated Medical Chair Unit Technical Field:
The present invention relates to a voice and footswitch operated medical chair unit activated by speech instructions and in response to actuation of a footswitch.
Background Art:
Conventionally, a dental chair unit uses a touch panel in which figures or symbols of divided items are written on a surface thereof, and each mechanism of the dental chair unit is activated by an operator selectively designating the desired item with his or her finger. To perform a continuous control operation, the operator actuates a footswitch provided separately with his or foot.
During treatment, the dental chair unit is activated to perform various operations such as posture control of the chair, rotation of the handpiece, speed control therefor, and watering. The distance between the operator and the touch panel and the distance between the touch panel and the footswitch are not fixed. The touch panel requires the operator to move in order to touch a desired switch and also needs visual confirmation of the position of the switch. Further, it is troublesome to touch the touch panel when the operator is holding a treatment tool, e.g. an instrument, during operation.
In addition, because the touch panel is touched with operator's fingers, there is a danger of transmission of pathogenic bacteria from the patient and so forth if the touch panel is handled with a contaminated hand or glove or with hands of a plurality of persons.
Further, when using the footswitch, the operator is required to actuate it in both the standing position and the seated position. Accordingly, some skill is needed for the operation of the footswitch with a foot.
Disclosure of Invention:
As the result of conducting exhaustive experiments and studies, the present inventors solved the above-described problems by the following arrangements of the invention adopting a control operation using speech instructions:
(1) A voice and footswitch operated medical chair unit wherein an operation control of the medical chair unit is executed by a speech instruction from an operator and in response to actuation of a footswitch by the operator. The chair unit includes a combination of a transmitting system and a receiving system, the transmitting system being adapted to detect a speech instruction given by a sound produced from the operator, convert the speech instruction to an electric signal and transmit it as a speech instruction signal, the receiving system being adapted to receive the speech instruction signals a speech recognition system for speech recognizing the speech instruction signal output from the receiving system and for converting it to a digital signal; a control computer for activating the chair unit on the basis of the digital signal output from the speech recognition system; a footswitch for executing a starting operation and a continuous control operation in response to a touch or depression made by movement of a foot of the operator; and a mechanism for executing a chair unit operation.
(2) A voice and footswitch operated medical chair unit as stated in the above paragraph (1), wherein the control computer has a display device for displaying the contents of the speech instruction after converting it to one selected from the group consisting of a character, a numeral, a symbol, and a figure.
(3) A voice and footswitch operated medical chair unit as stated in the above paragraph (1), wherein the control computer has a display device far displaying the contents of the speech instruction after converting it to a combination of at least two selected from the group consisting of a character, a numeral, a symbol, and a figure.
Further, when using the footswitch, the operator is required to actuate it in both the standing position and the seated position. Accordingly, some skill is needed for the operation of the footswitch with a foot.
Disclosure of Invention:
As the result of conducting exhaustive experiments and studies, the present inventors solved the above-described problems by the following arrangements of the invention adopting a control operation using speech instructions:
(1) A voice and footswitch operated medical chair unit wherein an operation control of the medical chair unit is executed by a speech instruction from an operator and in response to actuation of a footswitch by the operator. The chair unit includes a combination of a transmitting system and a receiving system, the transmitting system being adapted to detect a speech instruction given by a sound produced from the operator, convert the speech instruction to an electric signal and transmit it as a speech instruction signal, the receiving system being adapted to receive the speech instruction signals a speech recognition system for speech recognizing the speech instruction signal output from the receiving system and for converting it to a digital signal; a control computer for activating the chair unit on the basis of the digital signal output from the speech recognition system; a footswitch for executing a starting operation and a continuous control operation in response to a touch or depression made by movement of a foot of the operator; and a mechanism for executing a chair unit operation.
(2) A voice and footswitch operated medical chair unit as stated in the above paragraph (1), wherein the control computer has a display device for displaying the contents of the speech instruction after converting it to one selected from the group consisting of a character, a numeral, a symbol, and a figure.
(3) A voice and footswitch operated medical chair unit as stated in the above paragraph (1), wherein the control computer has a display device far displaying the contents of the speech instruction after converting it to a combination of at least two selected from the group consisting of a character, a numeral, a symbol, and a figure.
(4) A voice and footswitch operated medical chair unit as stated in any of the above paragraphs (1) to (3), which further includes a display device associated with the control computer, the display device being adapted to display the contents of the speech instruction after converting it to a combination of at least two selected from the group consisting of a character, a numeral, a symbol, and a figured and an announcement system for repeating the speech instruction.
(5) A voice and footswitch operated medical chair unit as stated in the above paragraph (4), which further includes a system for converting the speech instruction to an idiom and for making an amplified announcement of the idiom.
(6) A voice and footswitch operated medical chair unit as stated in any of the above paragraphs (1) to (5), wherein the combination of a transmitting system and a receiving system comprises a combination of a small-sized wireless microphone fitted to the operator or to clothing of the operator and a receiver incorporated in the chair unit.
(7) A voice and footswitch operated medical chair unit as stated in any of the above paragraphs (1) to (5), wherein the combination of a transmitting system and a receiving system comprises a combination of a microphone attached to the chair unit and a receiver incorporated in the chair unit.
(8) A voice and footswitch operated medical chair unit as stated in any of the above paragraphs (1) to (7), wherein the speech instruction is given by a sound uttered by an assistant other than the operator.
(9) A voice and footswitch operated medical chair unit as stated in any of the above paragraphs (1) to (7), wherein the speech instruction is given by a sound uttered by a patient or a person other than the operator and an assistant.
(10) A voice and footswitch operated medical chair unit as stated in any of the above paragraphs (1) to (7), wherein a microphone for the speech instruction detects a vocal vibration sound other than sound produced by the human vocal cords.
(11) A voice and footswitch operated medical chair unit as stated in any of the above paragraphs (1) to (10), which further includes an emergency stop mechanism responsive to the speech instruction; and an emergency stop switch provided on the chair unit.
(12) A voice and footswitch operated medical chair unit as stated in any of the above paragraphs (1) to (11), which further includes a system for announcing the speech instruction after translating and converting it into a corresponding speech instruction in a foreign language.
(13) A voice and footswitch operated medical chair unit as stated in any of the above paragraphs (1) to (11), which further includes a system for announcing the speech instruction after converting it to a technical term, an abbreviated term, a specified term, or the like.
(14) A voice and footswitch operated medical chair unit as stated in any of the above paragraphs (1) to (13), which is a dental chair unit.
Brief Description of Drawings:
Fig. 1 is a perspective view showing the arrangement of a voice and footswitch operated medical chair unit according to the present invention.
Fig. 2 shows display images concerned with the present invention.
Fig. 3 is a flowchart showing the control operation of the voice and footswitch operated medical chair unit according to the present invention.
Fig. 4 is a block diagram showing the voice and footswitch operated medical chair unit according to the present invention.
Explanation of Reference Symbols:
1: dental chair unit 2: operator 3: assistant 4: wireless microphone 5: receiver &: control computer 7: footswitch 8: display device 9: amplified announcement system 10: speech converter 11: microphone 12: emergency stop switch 13: backrest 14: headrest 15: chair seat 16: bracket table 17: spittoon 18: light 19: instruments .7 .
Brief Description of Drawings:
Fig. 1 is a perspective view showing the arrangement of a voice and footswitch operated medical chair unit according to the present invention.
Fig. 2 shows display images concerned with the present invention.
Fig. 3 is a flowchart showing the control operation of the voice and footswitch operated medical chair unit according to the present invention.
Fig. 4 is a block diagram showing the voice and footswitch operated medical chair unit according to the present invention.
Explanation of Reference Symbols:
1: dental chair unit 2: operator 3: assistant 4: wireless microphone 5: receiver &: control computer 7: footswitch 8: display device 9: amplified announcement system 10: speech converter 11: microphone 12: emergency stop switch 13: backrest 14: headrest 15: chair seat 16: bracket table 17: spittoon 18: light 19: instruments .7 .
20: chair base 21: transmitter 22: speech recognition system 23: speech instruction repeater 24: chair operation execution mechanism 25: emergency stop switch 30a: Up 30b: Up 1 30c: Display screen "Up"
30d: Display screen "Up 1"
30e: "Chair will be up"
30f: "Chair will be adjusted"
31a: Down 31b: Down 1 31c: Display screen "Down"
31d: Display screen "Down 1"
31e: "Chair will be down"
31f: "Chair will be adjusted"
32a: Raise 32b: Raise 1 32c: Display screen "Raise"
32d: Display screen "Raise 1"
32e: "Chair will be raised"
32f: "Chair will be adjusted"
33a: Tilt 33b: Tilt 1 33c: Display screen "Tilt"
33d: Display screen "Tilt 1"
33e: "Chair will be tilted back"
33f: "Chair will be adjusted"
34: Auto 1 34a: Display screen "Auto 1"
34b: "Chair position will be set"
35: Auto 2 35a: Display screen "Auto 2"
35b: "Chair position will be set"
36: Rinse 36a: Display screen "Rinse"
36b: "Chair will move to rinse position"
37: Reset 37a: Display screen "Reset"
37b: "Chair will move to finish position"
38: Soft 38a: Display screen "Soft"
39; Memory 39a: Display screen "Memory"
40; Emergency 40a: Display screen "Emergency"
41: Head up 41a: Display screen "Head up"
42: Head down 42a: Display screen "Head down"
43: Head raise 43a: Display screen "Head raise"
44: Head tilt 44a: Display screen "Head tilt"
_g_ 45: Light ON
45a: Display screen "Light ON"
46: Light OFF
46a: Display screen "Light OFF"
47: Forward 47a: Display screen "Forward"
48: Reverse 48a: Display screen "Reverse"
49: Watering 49a: Display screen "Watering"
50: Handpiece light 50a: Display screen "Handpiece light"
51: High speed 51a: Display screen "High speed"
52: Mid-speed 52a: Display screen "Mid-speed"
53: Low speed 53a: Display screen "Low speed"
Best Mode for Carrying Out the Invention:
An embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a perspective view showing the arrangement of a voice and footswitch operated chair unit according to the present invention.
In the figure, reference numerals denote as follows:
1 denotes a dental chair unit; 2 denotes an operator; 3 denotes an assistant; 4 denotes a wireless microphone; 5 denotes a receiver: 6 denotes a computer for control; 7 denotes a footswitch; 8 denotes a display device; 9 denotes an amplified announcement system; 9' denotes a loudspeaker; 10 denotes a speech-idiom converter; 11 denotes a microphone; 12 denotes an emergency stop switch:
13 denotes a backrest; 14 denotes a headrest: 15 denotes a chair seat: 16 denotes a bracket table; 17 denotes a spittoon; 18 denotes a light; 19 denotes instruments; and 20 denotes a chair base.
The operation of each device and the control flow will be described below with reference to Fig. 1.
A dental chair unit 1 is assumed to be ready to move.
A speech instruction from an operator 2 or an assistant 3 is detected by a small-sized wireless microphone 4 fitted to the clothing of the operator 2 or the assistant 3 near the neck. The speech is transmitted by wireless and received by a receiver 5 mounted on the bottom of a bracket table 16. The received speech instruction is converted to a digital signal by a control computer 6 provided adjacently to the receiver 5.
A symbol, a figure or the like that corresponds to the speech instruction is displayed on a display device 8 of the control computer 6.
Meanwhile, the speech instruction is repeated by an amplified announcement system 9. Alternatively, the instruction word is converted to a corresponding idiom by a speech-idiom converter 10 and announced through a loudspeaker 9' by the amplified announcement system 9.
-1 ~. -This is useful for previously announcing the movement of the chair, for example, to the patient to attain communication with him or her.
After confirming his or her own speech instruction by both the above-described display and the amplified announcement, the operator 2 touches or depresses a footswitch 7 with his or her foot. Consequently, a mechanism for executing an operation of the chair unit is switched ON. That is, a conventional set of contacts corresponding to the relevant operation are brought into contact with each other to switch ON. Thus, the chair unit is activated.
Next, the details of the control operation will be described by way of an example.
Table 1 below shows speech instructions. As shown in the table, speech instructions consist of independent words. About 30 different kinds of switches are provided on the existing touch panel and footswitch to activate a dental chair unit. Even if optional functions are added, the number of switches required is not more than 50.
Moreover, operators who may issue speech instructions are usually specific persons, and the number of such operators is small, i.e. two or three per chair unit in general.
Accordingly, the control operation based on speech instructions can be readily carried out with the existing speech recognition technology.
Table 1 Flow No. Speech Flow No. Speech instruction instruction 30a Up 41 Head up 30b Up 1 42 Head down 31a Down 43 Head raise 31b Down 1 44 Head tilt 32a Raise 45 Light ON
32b Raise 1 46 Light OFF
33a Tilt 47 Forward 33b Tilt 1 48 Reverse 34 Auto 1 49 Watering 35 Auto 2 50 Handpiece light 36 Rinse 51 High speed 37 Reset 52 Mid-speed 38 Soft 53 Low speed 39 Memory 4 O I Emergency - _ __ _ ~ _ _ _ I
Fig. 2 shows display images displayed on the display device 8 simultaneously with the above-described speech instruction. The display images are preferably simple figures such as those shown by 30c to 53a, which can intuitively appeal to the sense of vision. The display images may be based on those used for switch representation in the existing touch panels. It is also possible to display combinations of simple numerals, symbols, etc.
It is also preferable to display combinations each consisting of at least two items, i.e. an independent word representing a speech instruction and a figure.
It is also desirable that the display screen should be as large as possible from the viewpoint of allowing the operator to confirm his or her own speech instruction easily.
Color display images would further facilitate the confirmation.
Table 2 below shows idioms obtained by converting the speech instructions to announce an operation of the chair unit to the patient beforehand through the loudspeaker 9' by the amplified announcement system 9.
Conventionally, when the chair unit is to be activated, the operator orally announces it to the patient beforehand. A similar announcement is made in the present invention.
A means for announcing predetermined terms in the form of amplified speech by using drive signals is known as an application system of a voice synthesizer, for example.
Table 2 Flow No. Amplified announcement (idioms) 30e Chair will be up.
30f Chair will be adjusted.
31e Chair will be down.
31f Chair will be adjusted.
32e Chair will be raised.
32f Chair will be adjusted.
33e Chair will be tilted back.
33f Chair will be adjusted.
34b Chair position will be set.
35b Chair position will be set.
36b Chair will move to rinse position.
37b Chair will move to finish position.
38b Chair will return to consulting position.
40 Chair will stop.
41 Head will be up.
42 Head will be down.
43 Head will be raised.
44 Head will be tilted back.
Fig. 3 is a flowchart of control operations, showing an example in which the chair is tilted back and then the position of the chair is finely adjusted.
As shown in Fig. 3, if the operator 2 gives a speech instruction (step 50) by speaking "Tilt" as shown at step 33a, speech recognition is performed (step 51), and a character, a figure, etc. are displayed on the display device 8 as a display image (step 33c).
Next, the speech instruction is converted by speech idiom conversion (step 52), and the amplified announcement of "Chair will be tilted back" (step 33e) is made to the patient (step 53).
The operator 2 confirms the speech instruction visually by the display image (step 33c) and also auditorily by the amplified announcement (step 53).
Thereafter, the operator 2 actuates the footswitch (step 54) with his or her foot to switch ON (step 55) to activate the chair (step 56).
When the backrest 13 has reached a predetermined position, the operator 2 actuates the footswitch (step 57) with his or her foot to switch OFF (step 58) to stop the chair in this position (step 58).
If the operator 2 desires to finely adjust the chair position, a procedure similar to the above is repeated. In this case, the speech instruction (step 50) should be changed to "Tilt 1" as shown at step 33b.
When the speech instruction "Tilt 1" (step 33b) is recognized (step 51), a fine adjustment image indicating "Tilt 1" (step 33b) is displayed as a display image (step 33d). The speech instruction is converted by speech-idiom conversion (step 52) in the same way as the above, and the amplified announcement of "Chair will be finely adjusted"
(step 33f) is made to the patient (step 53).
Thereafter, the operator 2 actuates the footswitch (step 54) with his or her foot to switch ON (step 55) to activate the chair (step 56).
When the operator 2 actuates the footswitch (step 57) to switch OFF (step 58), the backrest 13 of the chair is set in the final finely adjusted position.
Fig. 4 is a block diagram of a voice and footswitch operated dental chair unit. The system configuration and operation of the dental chair unit will be described with reference to the figure.
In the figure, reference numerals denote as follows:
21 denotes a transmitter; 22 denotes a speech recognition systems 23 denotes a speech instruction repeater; 24 denotes a chair operation execution mechanisms and 25 denotes an emergency stop switch.
The wireless microphone 4 comprises an ordinary microphone and a transmitter 21.
As is generally known, there are various kinds of microphones. However, a microphone used in the present invention needs to be lightweight and compact. It is particularly required that the microphone should not interfere with the operator 2 when operating on the patient's teeth.
For example, it is desirable to use a tie-pin type wireless microphone or the like that can be pinned to the operator's clothing near the neck.
Other microphones usable in the present invention include head-set type microphones and special microphones such as skull conduction type, cheekbone conduction type and ear-bone conduction type microphones. These microphones can be selectively used.
The system of the transmitter 21 differs according to whether transmission is effected by wire or wireless.
In the case of wireless transmission as in this embodiment, it is particularly preferable to use a channel designated transmitter, for example.
The system of the receiver 5 differs according to whether the transmission is effected by wire or wireless.
In the case of wireless transmission as in this embodiment, a channel selection type receiver, for example, is adopted.
The instruction speech received as stated above is input to a speech recognition system 22. In the present invention, operators who may issue speech instructions are specific persons, and the number of such operators is small. The number of words that may be spoken is also small, i.e. not more than 50. Therefore, it is also possible to adopt middleware that is a technique of the speech recognition system {i.e. a speech recognition engine operated on a CPU), by way of example.
The speech recognized as stated above is input in the form of an electric digital signal to the control computer 6 incorporated in the chair unit. Thus, the speech is converted into an image corresponding to the speech instruction as shown in Fig. 2, and the image is displayed on the display device 8. Meanwhile, the speech instruction is input to the speech-idiom converter 10 from the speech recognition system 22 and converted to a corresponding idiom for the patient. The idiom is input to the amplified announcement system 9 and announced to the patient through the loudspeaker 9'.
An application system of a voice synthesizer or the like may be adopted as the amplified announcement system 9, as has been stated above.
The arrangement may also be such that the speech instruction is input to the speech instruction repeater 23 from the speech recognition system 22 so that only the speech instruction is merely announced with a delay.
The speech instructions include those which need not be announced to the patient, such as switching between the operations of instruments in particular. Therefore, the above-described arrangement may be adopted in a case where only the operator 2 needs to confirm the speech instruction.
After confirming the speech instruction by the above-described display image and the amplified announcement by voice or by the repetition of the speech instruction, the operator 2 depresses the operating plate of the footswitch 7 with his or her foot to switch ON.
As the footswitch 7, for example, a pedal type or pushbutton type footswitch is adopted. The footswitch 7 may operate in either of two modes, i.e. one in which when the pedal is once depressed, the switch is turned ON, and the ON-state is continued until the switch is turned OFF, and another in which the output is increased or decreased according to the angle through which the pedal is depressed.
When it is desired to vary the output, the footswitch 7 may be arranged such that a rotary encoder for detecting an angle, for example, is provided in association with the pedal plate to deliver a continuous output power corresponding to the magnitude of the depression of the pedal.
The arrangement may also be such that an array of photodetectors is provided on the side of the rear of the pedal, and a light-emitting device is provided on a movable portion of the top of the pedal, whereby a change in position of the photodetector array according to the pedal depression angle is converted to a change in digital quantity and delivered in the form of a digital signal (not shown in the figure).
The above-described arrangement allows the operator to perform a switching operation and a continuous control operation easily by touching the pedal or adjusting the amount of depression of the pedal.
The above-described change with time made by the ON-OFF control of the pedal may be used for the posture control of the chair. The change in the output according to the pedal depression angle may be used, for example, for continuous variation of the rotational speed of the handpiece.
The signal from the footswitch 7 is delivered to the control computer 6 where it is processed. Then, the signal is transmitted to the chair operation execution mechanism 24 to activate the chair unit.
The movement of the chair is performed in the same way as in the prior art by controlling a power source, e.g.
a motor, a hydraulic pressure, or a pneumatic pressure.
The emergency stop switch 25 activates an emergency operation circuit, which has heretofore been provided, in response to a speech instruction. It is also preferable to activate the emergency operation circuit by actuating an emergency stop switch 25 provided at an easy-to-operate position on the dental chair unit 1 at the same time as a speech instruction is given to activate the emergency operation circuit.
When the patient or the operator is a foreigner who uses a foreign language, it is preferable to announce speech instructions after they have been converted to idioms in the foreign language through a translating device, although this is not illustrated in the figure.
Although the foregoing embodiment has been described with regard to a dental chair unit, it is a matter of course that the present invention is also applicable to other medical chair units, e.g. those for otolaryngology, ophthalmology, etc.
Further, the foregoing medical chair unit may be provided with a connecting terminal for an external communication line so that operation instruction signals given by voice and from the footswitch can be transmitted to the outside via a communication line through the control computer.
Industrial Applicability:
The voice and footswitch operated medical chair unit according to the present invention exhibits the following advantageous effects.
~1 The operation control of the medical chair unit can be executed easily with a variable control output by using operator's speech instructions and the footswitch. The operator need not perform an operation of touching switches with his or her fingers. Accordingly, there is no danger of contagion. In addition, the footswitch allows the chair unit to be activated by a simple operation of touching or depressing the footswitch with the operator's foot.
~ In addition to the above, the operator is allowed to easily confirm his or her own speech instruction visually by the invention wherein speech instructions are displayed on a display device in the form of figures, symbols, characters, numerals, etc.
3~ In addition to the above, the patient is allowed to know a movement of the chair beforehand and hence prevented from feeling uneasy by the invention wherein each speech instruction is converted to an idiom and an amplified announcement of the idiom is made to the patient.
Further, the operator can also confirm the speech instruction auditorily.
~ In addition to the above, the operator is allowed to give instructions without interference with the operation by the invention wherein a small-sized microphone for speech instructions is fitted to the human body or operator's clothing.
~5 In addition to the above, the operator is allowed to give speech instructions without wearing a microphone by the invention wherein a microphone is attached to the chair unit.
~ In addition to the above, a microphone can be fitted directly to the human body by the invention using a special microphone other than microphones adapted for voice produced by the human vocal cords, e.g.
a skull conduction type, cheekbone conduction type or ear-bone conduction type microphone.
~7 In addition to the above, the invention having both an emergency stop mechanism responsive to a speech instruction and an emergency stop switch provided on the chair unit allows the chair unit to be brought quickly to an emergency stop by using either of the speech instruction-responsive emergency stop mechanism and the emergency stop switch on the chair unit.
~ In addition to the above, an announcement can be made to a foreigner in his or her foreign language by the invention having a system for announcing speech instructions after translating and converting them into a foreign language.
30d: Display screen "Up 1"
30e: "Chair will be up"
30f: "Chair will be adjusted"
31a: Down 31b: Down 1 31c: Display screen "Down"
31d: Display screen "Down 1"
31e: "Chair will be down"
31f: "Chair will be adjusted"
32a: Raise 32b: Raise 1 32c: Display screen "Raise"
32d: Display screen "Raise 1"
32e: "Chair will be raised"
32f: "Chair will be adjusted"
33a: Tilt 33b: Tilt 1 33c: Display screen "Tilt"
33d: Display screen "Tilt 1"
33e: "Chair will be tilted back"
33f: "Chair will be adjusted"
34: Auto 1 34a: Display screen "Auto 1"
34b: "Chair position will be set"
35: Auto 2 35a: Display screen "Auto 2"
35b: "Chair position will be set"
36: Rinse 36a: Display screen "Rinse"
36b: "Chair will move to rinse position"
37: Reset 37a: Display screen "Reset"
37b: "Chair will move to finish position"
38: Soft 38a: Display screen "Soft"
39; Memory 39a: Display screen "Memory"
40; Emergency 40a: Display screen "Emergency"
41: Head up 41a: Display screen "Head up"
42: Head down 42a: Display screen "Head down"
43: Head raise 43a: Display screen "Head raise"
44: Head tilt 44a: Display screen "Head tilt"
_g_ 45: Light ON
45a: Display screen "Light ON"
46: Light OFF
46a: Display screen "Light OFF"
47: Forward 47a: Display screen "Forward"
48: Reverse 48a: Display screen "Reverse"
49: Watering 49a: Display screen "Watering"
50: Handpiece light 50a: Display screen "Handpiece light"
51: High speed 51a: Display screen "High speed"
52: Mid-speed 52a: Display screen "Mid-speed"
53: Low speed 53a: Display screen "Low speed"
Best Mode for Carrying Out the Invention:
An embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a perspective view showing the arrangement of a voice and footswitch operated chair unit according to the present invention.
In the figure, reference numerals denote as follows:
1 denotes a dental chair unit; 2 denotes an operator; 3 denotes an assistant; 4 denotes a wireless microphone; 5 denotes a receiver: 6 denotes a computer for control; 7 denotes a footswitch; 8 denotes a display device; 9 denotes an amplified announcement system; 9' denotes a loudspeaker; 10 denotes a speech-idiom converter; 11 denotes a microphone; 12 denotes an emergency stop switch:
13 denotes a backrest; 14 denotes a headrest: 15 denotes a chair seat: 16 denotes a bracket table; 17 denotes a spittoon; 18 denotes a light; 19 denotes instruments; and 20 denotes a chair base.
The operation of each device and the control flow will be described below with reference to Fig. 1.
A dental chair unit 1 is assumed to be ready to move.
A speech instruction from an operator 2 or an assistant 3 is detected by a small-sized wireless microphone 4 fitted to the clothing of the operator 2 or the assistant 3 near the neck. The speech is transmitted by wireless and received by a receiver 5 mounted on the bottom of a bracket table 16. The received speech instruction is converted to a digital signal by a control computer 6 provided adjacently to the receiver 5.
A symbol, a figure or the like that corresponds to the speech instruction is displayed on a display device 8 of the control computer 6.
Meanwhile, the speech instruction is repeated by an amplified announcement system 9. Alternatively, the instruction word is converted to a corresponding idiom by a speech-idiom converter 10 and announced through a loudspeaker 9' by the amplified announcement system 9.
-1 ~. -This is useful for previously announcing the movement of the chair, for example, to the patient to attain communication with him or her.
After confirming his or her own speech instruction by both the above-described display and the amplified announcement, the operator 2 touches or depresses a footswitch 7 with his or her foot. Consequently, a mechanism for executing an operation of the chair unit is switched ON. That is, a conventional set of contacts corresponding to the relevant operation are brought into contact with each other to switch ON. Thus, the chair unit is activated.
Next, the details of the control operation will be described by way of an example.
Table 1 below shows speech instructions. As shown in the table, speech instructions consist of independent words. About 30 different kinds of switches are provided on the existing touch panel and footswitch to activate a dental chair unit. Even if optional functions are added, the number of switches required is not more than 50.
Moreover, operators who may issue speech instructions are usually specific persons, and the number of such operators is small, i.e. two or three per chair unit in general.
Accordingly, the control operation based on speech instructions can be readily carried out with the existing speech recognition technology.
Table 1 Flow No. Speech Flow No. Speech instruction instruction 30a Up 41 Head up 30b Up 1 42 Head down 31a Down 43 Head raise 31b Down 1 44 Head tilt 32a Raise 45 Light ON
32b Raise 1 46 Light OFF
33a Tilt 47 Forward 33b Tilt 1 48 Reverse 34 Auto 1 49 Watering 35 Auto 2 50 Handpiece light 36 Rinse 51 High speed 37 Reset 52 Mid-speed 38 Soft 53 Low speed 39 Memory 4 O I Emergency - _ __ _ ~ _ _ _ I
Fig. 2 shows display images displayed on the display device 8 simultaneously with the above-described speech instruction. The display images are preferably simple figures such as those shown by 30c to 53a, which can intuitively appeal to the sense of vision. The display images may be based on those used for switch representation in the existing touch panels. It is also possible to display combinations of simple numerals, symbols, etc.
It is also preferable to display combinations each consisting of at least two items, i.e. an independent word representing a speech instruction and a figure.
It is also desirable that the display screen should be as large as possible from the viewpoint of allowing the operator to confirm his or her own speech instruction easily.
Color display images would further facilitate the confirmation.
Table 2 below shows idioms obtained by converting the speech instructions to announce an operation of the chair unit to the patient beforehand through the loudspeaker 9' by the amplified announcement system 9.
Conventionally, when the chair unit is to be activated, the operator orally announces it to the patient beforehand. A similar announcement is made in the present invention.
A means for announcing predetermined terms in the form of amplified speech by using drive signals is known as an application system of a voice synthesizer, for example.
Table 2 Flow No. Amplified announcement (idioms) 30e Chair will be up.
30f Chair will be adjusted.
31e Chair will be down.
31f Chair will be adjusted.
32e Chair will be raised.
32f Chair will be adjusted.
33e Chair will be tilted back.
33f Chair will be adjusted.
34b Chair position will be set.
35b Chair position will be set.
36b Chair will move to rinse position.
37b Chair will move to finish position.
38b Chair will return to consulting position.
40 Chair will stop.
41 Head will be up.
42 Head will be down.
43 Head will be raised.
44 Head will be tilted back.
Fig. 3 is a flowchart of control operations, showing an example in which the chair is tilted back and then the position of the chair is finely adjusted.
As shown in Fig. 3, if the operator 2 gives a speech instruction (step 50) by speaking "Tilt" as shown at step 33a, speech recognition is performed (step 51), and a character, a figure, etc. are displayed on the display device 8 as a display image (step 33c).
Next, the speech instruction is converted by speech idiom conversion (step 52), and the amplified announcement of "Chair will be tilted back" (step 33e) is made to the patient (step 53).
The operator 2 confirms the speech instruction visually by the display image (step 33c) and also auditorily by the amplified announcement (step 53).
Thereafter, the operator 2 actuates the footswitch (step 54) with his or her foot to switch ON (step 55) to activate the chair (step 56).
When the backrest 13 has reached a predetermined position, the operator 2 actuates the footswitch (step 57) with his or her foot to switch OFF (step 58) to stop the chair in this position (step 58).
If the operator 2 desires to finely adjust the chair position, a procedure similar to the above is repeated. In this case, the speech instruction (step 50) should be changed to "Tilt 1" as shown at step 33b.
When the speech instruction "Tilt 1" (step 33b) is recognized (step 51), a fine adjustment image indicating "Tilt 1" (step 33b) is displayed as a display image (step 33d). The speech instruction is converted by speech-idiom conversion (step 52) in the same way as the above, and the amplified announcement of "Chair will be finely adjusted"
(step 33f) is made to the patient (step 53).
Thereafter, the operator 2 actuates the footswitch (step 54) with his or her foot to switch ON (step 55) to activate the chair (step 56).
When the operator 2 actuates the footswitch (step 57) to switch OFF (step 58), the backrest 13 of the chair is set in the final finely adjusted position.
Fig. 4 is a block diagram of a voice and footswitch operated dental chair unit. The system configuration and operation of the dental chair unit will be described with reference to the figure.
In the figure, reference numerals denote as follows:
21 denotes a transmitter; 22 denotes a speech recognition systems 23 denotes a speech instruction repeater; 24 denotes a chair operation execution mechanisms and 25 denotes an emergency stop switch.
The wireless microphone 4 comprises an ordinary microphone and a transmitter 21.
As is generally known, there are various kinds of microphones. However, a microphone used in the present invention needs to be lightweight and compact. It is particularly required that the microphone should not interfere with the operator 2 when operating on the patient's teeth.
For example, it is desirable to use a tie-pin type wireless microphone or the like that can be pinned to the operator's clothing near the neck.
Other microphones usable in the present invention include head-set type microphones and special microphones such as skull conduction type, cheekbone conduction type and ear-bone conduction type microphones. These microphones can be selectively used.
The system of the transmitter 21 differs according to whether transmission is effected by wire or wireless.
In the case of wireless transmission as in this embodiment, it is particularly preferable to use a channel designated transmitter, for example.
The system of the receiver 5 differs according to whether the transmission is effected by wire or wireless.
In the case of wireless transmission as in this embodiment, a channel selection type receiver, for example, is adopted.
The instruction speech received as stated above is input to a speech recognition system 22. In the present invention, operators who may issue speech instructions are specific persons, and the number of such operators is small. The number of words that may be spoken is also small, i.e. not more than 50. Therefore, it is also possible to adopt middleware that is a technique of the speech recognition system {i.e. a speech recognition engine operated on a CPU), by way of example.
The speech recognized as stated above is input in the form of an electric digital signal to the control computer 6 incorporated in the chair unit. Thus, the speech is converted into an image corresponding to the speech instruction as shown in Fig. 2, and the image is displayed on the display device 8. Meanwhile, the speech instruction is input to the speech-idiom converter 10 from the speech recognition system 22 and converted to a corresponding idiom for the patient. The idiom is input to the amplified announcement system 9 and announced to the patient through the loudspeaker 9'.
An application system of a voice synthesizer or the like may be adopted as the amplified announcement system 9, as has been stated above.
The arrangement may also be such that the speech instruction is input to the speech instruction repeater 23 from the speech recognition system 22 so that only the speech instruction is merely announced with a delay.
The speech instructions include those which need not be announced to the patient, such as switching between the operations of instruments in particular. Therefore, the above-described arrangement may be adopted in a case where only the operator 2 needs to confirm the speech instruction.
After confirming the speech instruction by the above-described display image and the amplified announcement by voice or by the repetition of the speech instruction, the operator 2 depresses the operating plate of the footswitch 7 with his or her foot to switch ON.
As the footswitch 7, for example, a pedal type or pushbutton type footswitch is adopted. The footswitch 7 may operate in either of two modes, i.e. one in which when the pedal is once depressed, the switch is turned ON, and the ON-state is continued until the switch is turned OFF, and another in which the output is increased or decreased according to the angle through which the pedal is depressed.
When it is desired to vary the output, the footswitch 7 may be arranged such that a rotary encoder for detecting an angle, for example, is provided in association with the pedal plate to deliver a continuous output power corresponding to the magnitude of the depression of the pedal.
The arrangement may also be such that an array of photodetectors is provided on the side of the rear of the pedal, and a light-emitting device is provided on a movable portion of the top of the pedal, whereby a change in position of the photodetector array according to the pedal depression angle is converted to a change in digital quantity and delivered in the form of a digital signal (not shown in the figure).
The above-described arrangement allows the operator to perform a switching operation and a continuous control operation easily by touching the pedal or adjusting the amount of depression of the pedal.
The above-described change with time made by the ON-OFF control of the pedal may be used for the posture control of the chair. The change in the output according to the pedal depression angle may be used, for example, for continuous variation of the rotational speed of the handpiece.
The signal from the footswitch 7 is delivered to the control computer 6 where it is processed. Then, the signal is transmitted to the chair operation execution mechanism 24 to activate the chair unit.
The movement of the chair is performed in the same way as in the prior art by controlling a power source, e.g.
a motor, a hydraulic pressure, or a pneumatic pressure.
The emergency stop switch 25 activates an emergency operation circuit, which has heretofore been provided, in response to a speech instruction. It is also preferable to activate the emergency operation circuit by actuating an emergency stop switch 25 provided at an easy-to-operate position on the dental chair unit 1 at the same time as a speech instruction is given to activate the emergency operation circuit.
When the patient or the operator is a foreigner who uses a foreign language, it is preferable to announce speech instructions after they have been converted to idioms in the foreign language through a translating device, although this is not illustrated in the figure.
Although the foregoing embodiment has been described with regard to a dental chair unit, it is a matter of course that the present invention is also applicable to other medical chair units, e.g. those for otolaryngology, ophthalmology, etc.
Further, the foregoing medical chair unit may be provided with a connecting terminal for an external communication line so that operation instruction signals given by voice and from the footswitch can be transmitted to the outside via a communication line through the control computer.
Industrial Applicability:
The voice and footswitch operated medical chair unit according to the present invention exhibits the following advantageous effects.
~1 The operation control of the medical chair unit can be executed easily with a variable control output by using operator's speech instructions and the footswitch. The operator need not perform an operation of touching switches with his or her fingers. Accordingly, there is no danger of contagion. In addition, the footswitch allows the chair unit to be activated by a simple operation of touching or depressing the footswitch with the operator's foot.
~ In addition to the above, the operator is allowed to easily confirm his or her own speech instruction visually by the invention wherein speech instructions are displayed on a display device in the form of figures, symbols, characters, numerals, etc.
3~ In addition to the above, the patient is allowed to know a movement of the chair beforehand and hence prevented from feeling uneasy by the invention wherein each speech instruction is converted to an idiom and an amplified announcement of the idiom is made to the patient.
Further, the operator can also confirm the speech instruction auditorily.
~ In addition to the above, the operator is allowed to give instructions without interference with the operation by the invention wherein a small-sized microphone for speech instructions is fitted to the human body or operator's clothing.
~5 In addition to the above, the operator is allowed to give speech instructions without wearing a microphone by the invention wherein a microphone is attached to the chair unit.
~ In addition to the above, a microphone can be fitted directly to the human body by the invention using a special microphone other than microphones adapted for voice produced by the human vocal cords, e.g.
a skull conduction type, cheekbone conduction type or ear-bone conduction type microphone.
~7 In addition to the above, the invention having both an emergency stop mechanism responsive to a speech instruction and an emergency stop switch provided on the chair unit allows the chair unit to be brought quickly to an emergency stop by using either of the speech instruction-responsive emergency stop mechanism and the emergency stop switch on the chair unit.
~ In addition to the above, an announcement can be made to a foreigner in his or her foreign language by the invention having a system for announcing speech instructions after translating and converting them into a foreign language.
Claims (14)
1. A voice and footswitch operated medical chair unit wherein an operation control of the medical chair unit is executed by a speech instruction from an operator and in response to actuation of a footswitch by the operator, said chair unit comprising:
a combination of a transmitting system and a receiving system, said transmitting system being adapted to detect the speech instruction given by a sound produced from the operator, convert the speech instruction to an electric signal and transmit it as a speech instruction signal, said receiving system being adapted to receive the speech instruction signal;
a speech recognition system for speech recognizing the speech instruction signal output from said receiving system and for converting it to a digital signal;
a control computer for activating the chair unit on a basis of the digital signal output from the speech recognition system;
said footswitch for executing a starting operation and a continuous control operation in response to a touch or depression made by movement of a foot of the operator;
and a mechanism for executing a chair unit operation.
a combination of a transmitting system and a receiving system, said transmitting system being adapted to detect the speech instruction given by a sound produced from the operator, convert the speech instruction to an electric signal and transmit it as a speech instruction signal, said receiving system being adapted to receive the speech instruction signal;
a speech recognition system for speech recognizing the speech instruction signal output from said receiving system and for converting it to a digital signal;
a control computer for activating the chair unit on a basis of the digital signal output from the speech recognition system;
said footswitch for executing a starting operation and a continuous control operation in response to a touch or depression made by movement of a foot of the operator;
and a mechanism for executing a chair unit operation.
2. A voice and footswitch operated medical chair unit according to claim 1, wherein the control computer has a display device for displaying contents of the speech instruction after converting it to one selected from the group consisting of a character, a numeral, a symbol, and a figure.
3. A voice and footswitch operated medical chair unit according to claim 1, wherein the control computer has a display device for displaying contents of the speech instruction after converting it to a combination of at least two selected from the group consisting of a character, a numeral, a symbol, and a figure.
4. A voice and footswitch operated medical chair unit according to any one of claims 1 to 3, further comprising:
a display device associated with the control computer, said display device being adapted to display contents of the speech instruction after converting it to a combination of at least two selected from the group consisting of a character, a numeral, a symbol, and a figure; and an announcement system for repeating the speech instruction.
a display device associated with the control computer, said display device being adapted to display contents of the speech instruction after converting it to a combination of at least two selected from the group consisting of a character, a numeral, a symbol, and a figure; and an announcement system for repeating the speech instruction.
5. A voice and footswitch operated medical chair unit according to claim 4, further comprising:
a system for converting the speech instruction to an idiom and for making an amplified announcement of the idiom.
a system for converting the speech instruction to an idiom and for making an amplified announcement of the idiom.
6. A voice and footswitch operated medical chair unit according to any one of claims 1 to 5, wherein said combination of a transmitting system and a receiving system comprises a combination of a small-sized wireless microphone fitted to the operator or to clothing of the operator and a receiver incorporated in the chair unit.
7. A voice and footswitch operated medical chair unit according to any one of claims 1 to 5, wherein said combination of a transmitting system and a receiving system comprises a combination of a microphone attached to the chair unit and a receiver incorporated in the chair unit.
8. A voice and footswitch operated medical chair unit according to any one of claims 1 to 7, wherein the speech instruction is given by a sound uttered by an assistant other than the operator.
9. A voice and footswitch operated medical chair unit according to any one of claims 1 to 7, wherein the speech instruction is given by a sound uttered by a patient or a person other than the operator and an assistant.
10. A voice and footswitch operated medical chair unit according to any one of claims 1 to 7, wherein a microphone for the speech instruction detects a vocal vibration sound other than sound produced by human vocal cords.
11. A voice and footswitch operated medical chair unit according to any one of claims 1 to 10, further comprising:
an emergency stop mechanism responsive to the speech instruction; and an emergency stop switch provided on the chair unit.
an emergency stop mechanism responsive to the speech instruction; and an emergency stop switch provided on the chair unit.
12. A voice and footswitch operated medical chair unit according to any one of claims 1 to 11, further comprising:
a system for announcing the speech instruction after translating and converting it into a corresponding speech instruction in a foreign language.
a system for announcing the speech instruction after translating and converting it into a corresponding speech instruction in a foreign language.
13. A voice and footswitch operated medical chair unit according to any one of claims 1 to 11, further comprising:
a system for announcing the speech instruction after converting it to a technical term, an abbreviated term, a specified term, or the like.
a system for announcing the speech instruction after converting it to a technical term, an abbreviated term, a specified term, or the like.
14. A voice and footswitch operated medical chair unit according to any one of claims 1 to 13, which is a dental chair unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001012482A JP2002209958A (en) | 2001-01-19 | 2001-01-19 | Voice and foot switch operation type medical chair unit |
| CA002386966A CA2386966A1 (en) | 2001-01-19 | 2002-05-21 | Voice and footswitch operated medical chair unit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001012482A JP2002209958A (en) | 2001-01-19 | 2001-01-19 | Voice and foot switch operation type medical chair unit |
| CA002386966A CA2386966A1 (en) | 2001-01-19 | 2002-05-21 | Voice and footswitch operated medical chair unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2386966A1 true CA2386966A1 (en) | 2003-11-21 |
Family
ID=32714134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002386966A Abandoned CA2386966A1 (en) | 2001-01-19 | 2002-05-21 | Voice and footswitch operated medical chair unit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2002209958A (en) |
| CA (1) | CA2386966A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2168547A1 (en) * | 2008-09-29 | 2010-03-31 | Gymnauniphy, Naamloze Vennootschap | Treatment couch |
| WO2017036125A1 (en) * | 2015-09-05 | 2017-03-09 | 刘洋 | Dental comprehensive therapy machine with a voice recognition function |
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|---|---|---|---|---|
| US9514746B2 (en) | 2006-09-26 | 2016-12-06 | Storz Endoskop Produktions Gmbh | System and method for hazard mitigation in voice-driven control applications |
| KR100815619B1 (en) | 2006-09-28 | 2008-03-21 | (주)이우테크놀로지 | The dental unit chair using speech recognition device and method thereof |
| JP4873497B2 (en) * | 2008-07-30 | 2012-02-08 | 株式会社モリタ製作所 | Medical training device |
| JP5570801B2 (en) * | 2009-12-23 | 2014-08-13 | 株式会社モリタ製作所 | Medical treatment equipment |
| JP5162059B2 (en) * | 2010-02-13 | 2013-03-13 | 株式会社モリタ製作所 | Medical treatment equipment |
| CN105125369A (en) * | 2015-09-23 | 2015-12-09 | 佛山市新格医疗器材有限公司 | Dental department postoperation cleaning disinfection system |
| KR102438151B1 (en) * | 2021-01-29 | 2022-08-29 | 정재준 | Neckband type headlight system for medical use |
| JP7377234B2 (en) | 2021-02-16 | 2023-11-09 | 株式会社モリタ製作所 | Control device, medical care system and control method |
| CN113425323B (en) * | 2021-08-10 | 2023-07-25 | 明峰医疗系统股份有限公司 | Control system and method of CT diagnosis bed |
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| JPS6081521A (en) * | 1983-10-07 | 1985-05-09 | Nissan Motor Co Ltd | Synchronizer of manual speed change gear |
| JPH0747011B2 (en) * | 1985-12-27 | 1995-05-24 | 株式会社テック | Vacuum cleaner |
| JPH01282774A (en) * | 1988-05-10 | 1989-11-14 | Hitachi Medical Corp | Voice report recorder and recording medium |
| JPH06178758A (en) * | 1992-12-14 | 1994-06-28 | Fuji Photo Optical Co Ltd | Operation control device for electronic endoscope |
| JPH0746184A (en) * | 1993-07-30 | 1995-02-14 | Yoshida Dental Mfg Co Ltd | Dental treatment system |
| JP3306784B2 (en) * | 1994-09-05 | 2002-07-24 | 日本電信電話株式会社 | Bone conduction microphone output signal reproduction device |
| JPH10248832A (en) * | 1997-03-13 | 1998-09-22 | Hitachi Medical Corp | Medical diagnostic device |
| JPH10261018A (en) * | 1997-03-18 | 1998-09-29 | Masataka Kusunoki | Clinical chart entry support device |
| JPH11167397A (en) * | 1997-12-04 | 1999-06-22 | Hitachi Eng & Service Co Ltd | Speech recognition device |
| JPH11178702A (en) * | 1997-12-22 | 1999-07-06 | Media Technical:Kk | Holder for small communication device |
| JP2000042054A (en) * | 1998-07-29 | 2000-02-15 | Kimura Giken Kk | Bed system with mechanism for defection |
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| JP2000185022A (en) * | 1998-12-22 | 2000-07-04 | Ge Yokogawa Medical Systems Ltd | Mri device |
| JP3679662B2 (en) * | 1999-11-10 | 2005-08-03 | タカラベルモント株式会社 | Status reporting device for chairs such as barber and beauty chairs |
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- 2002-05-21 CA CA002386966A patent/CA2386966A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2168547A1 (en) * | 2008-09-29 | 2010-03-31 | Gymnauniphy, Naamloze Vennootschap | Treatment couch |
| WO2017036125A1 (en) * | 2015-09-05 | 2017-03-09 | 刘洋 | Dental comprehensive therapy machine with a voice recognition function |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002209958A (en) | 2002-07-30 |
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