JP7103679B2 - Medical equipment - Google Patents

Description

The present invention relates to a medical device having a grip portion to be gripped by a user.

Conventionally, medical devices such as dental chairs, otolaryngology chairs, delivery tables, medical chairs, surgical lights, doctor tables, medical imaging devices, and extraoral vacuums are provided with grips. Since the grip of the medical device touches the human hand, it is necessary to take measures against infection. Conventionally, when the grip is sterilized with a germicidal lamp, the grip is removed from the main body of the device and then sterilized with a sterilizer, or a medical worker disinfects with alcohol to prevent infection (for example, patent). Reference 1).

JP-A-2019-195514

However, in the dental lighting device described in Patent Document 1, when the grip portion (handle (210, 250)) is sterilized, the handle (210, 250) needs to be removed from the device body (110). There is a problem that it takes a lot of time and effort to perform the sterilization work.

Therefore, the present invention has been invented to solve such a problem, and an object of the present invention is to provide a medical device capable of easily preventing infection of a grip portion.

In order to solve the above-mentioned problems, in the present invention, the grip portion, the ultraviolet light source unit that generates ultraviolet rays having one or more wavelengths, the light source control unit that controls the ultraviolet light source unit, and the patient to be treated are replaced. A medical device comprising a patient alternation detecting means for detecting an ultraviolet ray , the ultraviolet light source portion is arranged so that ultraviolet rays pass from the inside to the outside of the grip portion, and at least one of the grip portions. The unit is composed of an ultraviolet light transmitting member that transmits ultraviolet rays from the ultraviolet light source unit, and the light source control unit is a signal that the patient change detection means turns on and off the patient sitting in the medical chair away from the medical chair. A medical device characterized in that it is determined that the patient to be treated has been replaced based on the above, and ultraviolet rays are generated from the ultraviolet light source unit .

According to the present invention, it is possible to provide a medical device capable of easily preventing infection of the grip portion.

It is a schematic perspective view which shows an example of the medical apparatus which concerns on embodiment of this invention. It is a figure which shows an example of the grip part, and is the schematic perspective view of a doctor table. It is explanatory drawing which shows the structure of the grip part of a doctor table. It is a figure which shows an example of the grip part, and is the schematic perspective view of the surgical light for medical use. It is an enlarged front view of the main part which shows the structure of the grip part of the surgical light for medical use. It is explanatory drawing which shows the structure of the grip part of the medical treatment chair. It is a block diagram of a medical device. It is explanatory drawing which shows the principle of the far ultraviolet C wave generation of a double dielectric system. It is a graph which shows the relative intensity of a far ultraviolet C wave. It is explanatory drawing which shows the principle of the far ultraviolet C wave generation of a single dielectric type. 9A is a sectional view taken along line VV of FIG. 9A. It is a figure which shows the 1st modification of the medical apparatus which concerns on embodiment of this invention, and is explanatory drawing which shows the structure of the grip part of the doctor table. It is a figure which shows the 2nd modification of the medical apparatus which concerns on embodiment of this invention, and is explanatory drawing which shows the structure of the grip part of the medical care shadowless lamp. It is a figure which shows the 3rd modification of the medical apparatus which concerns on embodiment of this invention, and is explanatory drawing which shows the structure of the grip part of the doctor table. It is a figure which shows the 4th modification of the medical apparatus which concerns on embodiment of this invention, and is explanatory drawing which shows the state when the finger of a user is separated from the grip part. It is a figure which shows the 4th modification of the medical apparatus which concerns on embodiment of this invention, and is explanatory drawing which shows the state when the finger of a user comes into contact with a grip part. It is an enlarged view of the main part of FIG. 13B. It is a figure which shows the 5th modification of the medical apparatus which concerns on embodiment of this invention, and is explanatory drawing which shows the structure of the grip part of the doctor table. It is a figure which shows the 6th modification of the medical apparatus which concerns on embodiment of this invention, and is explanatory drawing which shows the structure of the grip part of the doctor table.

Next, an example of the medical device S according to the embodiment of the present invention will be described with reference to FIGS. 1 to 9B.
For convenience, the front-back, left-right, and up-down are based on the direction in which the medical surgical light 2 shown in FIG. 1 is facing as the front (front). Further, in the following description, those having the same configuration are designated by the same reference numerals and the description thereof will be omitted.

<Medical equipment>
The medical device S shown in FIG. 1 is a device used for diagnosing and treating medical care such as dentistry, otolaryngology, and ophthalmology. The medical device S is mainly used for medical treatment in which, for example, the nose, eyes, oral cavity and the like are used as medical treatment sites. The medical device S has at least grip portions 23, 33, 45 that the patient grips by hand, and ultraviolet light source portions 26, 34, 46 that generate ultraviolet rays having one or more wavelengths.
The medical device S may be any device used for medical diagnosis and treatment, and its intended use, installation location, and the like are not particularly limited. Hereinafter, as an example of the medical device S, a case where the oral cavity of a patient is treated by a dental medical device 100 provided with gripping portions 23, 33, 45 will be described as an example.

<Dental medical equipment>
As shown in FIG. 1, the dental medical treatment device 100 includes a dental treatment unit 1.

<Dental treatment unit>
The dental treatment unit 1 is provided on a medical chair 4, a unit main body 11, a support 12 erected on the unit main body 11, an arm 13 pivotally supported on the upper part of the support 12, and a tip of the arm 13. It includes an attached surgical light 2, a doctor table 3, a doctor instrument hanger 15, an assistant instrument hanger 16, and a display device (not shown). The dental treatment unit 1 may have a unit main body 11, a support column 12, an arm 13, a medical surgical light 2, a doctor table 3, a medical chair 4, and the like, and the type and type thereof are not particularly limited.

<Unit body>
As shown in FIG. 1, the unit main body 11 may have a support column 12, and its shape, structure, and the like are not particularly limited.

The column 12 is a column member that rotatably supports the base end portion of the arm 13. The support column 12 has, for example, a cylindrical shape through which a harness (not shown) for electrically connecting the power supply AC (see FIG. 7) and the medical shadowless lamp 2 and the human detection means HS (see FIG. 7) is inserted. It is formed by a metal member of. A base end portion of the arm 13 is rotatably installed on the upper portion of the support column 12.

The arm 13 is arranged so as to extend from the support column 12 to the surgical light 2 and applies a force equal to or higher than a predetermined force (arbitrary force in the rotation direction set in advance) in the moving direction, so that the surgical light 2 is used. It also consists of a balance arm having a supporting force that elastically supports the human detecting means HS (see FIG. 7) so as to be movable in the vertical, forward, backward, and horizontal directions. The arm 13 is composed of an articulated arm having a plurality of joints. The arm 13 includes a first arm 13a axially supported by the support column 12, a second arm 13b arranged on the tip end side of the first arm 13a, and a harness wired in the first arm 13a and the second arm 13b. (Not shown), a joint portion 13c provided between the first arm 13a and the second arm 13b, and a connection portion 13d provided at the tip of the second arm 13b. The configuration of the arm 13 and the like may be changed as appropriate.

<Clinical surgical light>
As shown in FIGS. 1 and 4, the surgical light 2 is a lighting device for brightly illuminating a subject such as the patient's oral cavity, the tooth to be inspected (tooth), and the root canal. As shown in FIG. 4, the medical shadowless lamp 2 includes a housing 21, a joint portion 22, left and right grip portions 23, a cover 24, a plurality of (for example, four) lighting light sources 25, and the like. It includes an ultraviolet light source unit 26 and a grip detection means 27.

<Case>
The housing 21 is the case body of the surgical light 2 for medical treatment. The housing 21 is substantially bowl-shaped. A cover 24 and a lighting light source 25 are provided on the front surface of the housing 21. A joint portion 22 is provided at the rear portion of the housing 21. Gripping portions 23 are projected on the left and right side surfaces of the housing 21. The housing 21 is provided with an electrical connection (not shown) having a large number of connection terminals.

<Joint part>
The joint portion 22 is a connecting member constituting a universal joint that rotatably connects the housing 21 to the connecting portion 13d of the arm 13 (see FIG. 1) in the vertical and horizontal directions. The base end of the joint portion 22 is connected to the connecting portion 13d, and the tip end portion is connected to the left and right sides of the rear surface of the housing 21. Therefore, the illumination light source 25 arranged on the front surface of the housing 21 can freely change the irradiation direction.

<Grip part of surgical light for medical treatment>
As shown in FIG. 4, the grip portion 23 serves as a handle when irradiating the illumination light source 25, attaching / detaching the housing 21 to / from the arm 13, or adjusting the orientation of the housing 21. It is a member. The grip portion 23 is made of, for example, a substantially rod-shaped member formed in a substantially U-shape (substantially arcuate shape). At least a part of the grip portion 23 is formed by a transparent ultraviolet transmitting member U1 that transmits ultraviolet rays from the ultraviolet light source unit 26. The grip portion 23 includes an ultraviolet light source portion 26 arranged so that ultraviolet rays pass from the inside to the outside of the grip portion 23, and a grip for detecting whether or not the user grips the grip portion 23. The detection means 27 is provided.

<Light source for lighting>
The illumination light source 25 shown in FIG. 4 is composed of, for example, a shadowless lamp in which a plurality of LEDs are provided so as not to generate a shadow, and a slit in the shape of an irradiation field and a lens are arranged in front of the light source 25 to provide an irradiation field. The illumination light source 25 is rotatably attached to the support portion via a support (not shown) by a rotation mechanism. Therefore, the illumination position illuminated by the illumination light source 25 can be freely adjusted. As the illumination light source 25 of the normal illumination light for dentistry, white light having a color temperature of 3600 ° K to 6000 ° K (Kelvin temperature) is generally used. The illumination light source 25 is electrically connected to the power supply AC via the shadowless lamp control unit 35 of the doctor table 3 (see FIG. 7).
The illumination light source 25 may be a shadowless lamp, and a diffuser plate for a reflection mirror is installed behind the lamp or LED, and a desired irradiation field is provided around the subject so as not to generate a shadow as a surface light source. It may be a well-known surgical light provided with (light pattern) (see, for example, Japanese Patent Application Laid-Open No. 2014-53164).

<Ultraviolet light source part of surgical light for medical treatment>
As shown in FIGS. 4 and 5, the ultraviolet light source unit 26 of the surgical light 2 is an ultraviolet generating means having a wavelength of 190 nm to 400 nm. The ultraviolet light source unit 26 is composed of a plurality of (for example, three) light sources arranged inside the grip portion 23 at appropriate intervals in the longitudinal direction of the grip portion 23. Therefore, the ultraviolet light source unit 26 can sterilize the virus adhering to the surface of the grip portion 23 or the virus adhering to the hand of the user who grips the grip portion 23 by irradiating it with ultraviolet rays. The ultraviolet light source unit 26 is electrically connected to the power supply AC via the light source control unit 36 of the doctor table 3 (see FIGS. 1 and 7). The ultraviolet light source unit 26 will be described in detail later.

The ultraviolet ray transmitting member U1 forming the grip portion 23 is made of an amorphous fluororesin or an inorganic material capable of guiding ultraviolet rays from the ultraviolet light source portion 26.

<Means for detecting gripping of surgical light for medical use>
The grip detection means 27 of the medical shadowless lamp 2 is a sensor that detects whether or not the user has gripped the grip portion 23 of the medical shadowless lamp 2 by hand. The grip detection means 27 is a sensor that turns on when the user comes into contact with the grip portion 23 of the surgical light 2, and turns off when the user comes into contact with the grip portion 23. For example, the capacitance type. It consists of a touch sensor (touch switch). The grip detecting means 27 is formed of, for example, a transparent sheet-like member that transmits ultraviolet rays, and is attached to the entire surface or a part of the grip portion 23. The grip detection means 27 is electrically connected to the power supply AC via the light source control unit 36 of the doctor table 3 (see FIG. 1).

<Doctor table>
As shown in FIG. 1, the doctor table 3 is a work table mainly used by the operator. The doctor table 3 includes a work plate 31, an operation panel unit 32, a grip unit 33, an ultraviolet light source unit 34, a shadowless light control unit 35, a light source control unit 36, a grip detection means 37, and a display unit 38. And a control device 30 (see FIG. 7). The doctor table 3 is rotatably provided on the base portion 41 of the medical care chair 4 with a support member interposed therebetween, and is arranged in the vicinity of the doctor instrument hanger 15 and the medical care chair 4.

<Work plate, operation panel>
The work plate 31 is composed of a rectangular flat top plate.
The operation panel unit 32 includes a point-off switch for turning on and off the ultraviolet light source units 26, 34, 46, a timer switch for setting the lighting time of the ultraviolet light source units 26, 34, 46, and an ultraviolet light source unit 26. , 34, 46 is an operating device having a wavelength adjusting switch for adjusting the wavelength of ultraviolet rays generated from, 34, 46, a switch for performing other operations, and the like. The operation panel unit 32 is composed of a liquid crystal panel having a large number of touch switches (not shown) and the like. The operation panel unit 32 is electrically connected to the control device 30 built in the doctor table 3, and the operation signal of the touch switch (not shown) is input to the control device 30, and the lighting light source 25 and the ultraviolet light source are used. The unit 34 is driven (see FIG. 7).

<Grip part of doctor table>
As shown in FIGS. 1 and 2, the grip portion 33 of the doctor table 3 is a portion to be gripped by hand when the operator changes the position of the doctor table 3. At least a part of the grip portion 33 is composed of a transparent ultraviolet light transmitting member U1 that transmits ultraviolet rays from the ultraviolet light source unit 34. The grip portion 33 is composed of, for example, a cylindrical (round bar-shaped) handle member protruding in the left-right direction from the left-right end portion of the front end portion of the operation panel portion 32. The grip portion 33 includes an ultraviolet light source portion 34 that generates ultraviolet rays, and a grip detection means 37 that detects whether or not the grip portion 33 is gripped by the user.

<Ultraviolet light source part of doctor table>
As shown in FIGS. 2 and 3, the ultraviolet light source unit 34 of the doctor table 3 has a wavelength of 190 nm to 280 nm, similarly to the ultraviolet light source unit 26 of the medical surgical light 2 (see FIGS. 4 and 5) described above. It is a means for generating a far-ultraviolet C wave that generates a far-ultraviolet C wave. The ultraviolet light source unit 34 emits light of a plurality of light sources (for example, three light sources arranged in the grip portion 33 in the longitudinal direction at appropriate intervals) arranged so that ultraviolet rays pass from the inside to the outside of the grip portion 33. Consists of sources. The ultraviolet light source unit 34 includes a filter (not shown) such as a handpass filter that prevents the ultraviolet rays generated from the ultraviolet light source unit 26 from having a wavelength other than a specific (single) wavelength.

The ultraviolet transmissive member U1 forming the grip portion 33 is made of a transparent member capable of guiding ultraviolet rays from the ultraviolet light source portion 34, similarly to the ultraviolet transmissive member U1 of the grip portion 23 of the medical shadowless lamp 2 described above.

<Shadowless light control unit>
The shadowless lamp control unit 35 is a control unit that controls the brightness of the lighting light source 25 and the like. The shadowless light control unit 35 is provided in the operation panel unit 32 of the doctor table 3.

<Light source control unit>
The light source control unit 36 shown in FIG. 7 is a control unit that controls the ultraviolet light source units 26, 34, and 46. The light source control unit 36 controls the ultraviolet light source units 26, 34, 46 based on the detection signals of the patient change detection means 48 and the grip detection means 27, 37, 47. The light source control unit 36 generates ultraviolet rays from the ultraviolet light source units 26, 34, 46 by the grip detection means 27, 37, 47, at least while grip is detected. The light source control unit 36 is provided on the operation panel unit 32 (see FIG. 2) of the doctor table 3.
The light source control unit 36 may generate ultraviolet rays from the ultraviolet light source units 26, 34, 46 after the grip is no longer detected by the grip detecting means 27, 37, 47.

Further, the light source control unit 36 may generate ultraviolet rays from the ultraviolet light source units 26, 34, 46 for a time set by the timer 39 after the grip is detected by the grip detecting means 27, 37, 47. Further, the ultraviolet light source units 26, 34, 46 may be turned off after the time set by the timer 39 has elapsed after the grip detection means 27, 37, 47 no longer detects the grip.

<Dr. table grip detection means>
As shown in FIG. 2, the grip detection means 37 of the doctor table 3 is a sensor that detects whether or not the user has gripped the grip portion 33 of the doctor table 3. As shown in FIGS. 2 and 3, when the user comes into contact with the grip portion 33 of the doctor table 3, the grip detection means 37 is similar to the grip detection means 27 of the medical surgical light 2 (see FIG. 4) described above. It is a sensor that turns on and turns off when it comes into contact with the grip portion 33. The grip detection means 37 includes, for example, a capacitance type touch sensor (touch switch). The grip detecting means 37 is formed of, for example, a transparent sheet-like member that transmits ultraviolet rays, and is attached to the entire surface or a part of the grip portion 33. The grip detection means 37 is electrically connected to the power supply AC (see FIG. 7) via the light source control unit 36.

<Display unit>
As shown in FIG. 7, the display unit 38 shows the operating status of the lighting light source 25, the ultraviolet light source unit 26, and the grip detection means 27 of the medical shadowless lamp 2, and the ultraviolet light source unit 34 and the grip detection means of the doctor table 3. It is composed of a liquid crystal monitor that displays the operating status of 37, the operating status of the ultraviolet light source unit 46 of the medical chair 4, the grip detecting means 47, and the patient change detecting means 48. The display unit 38 is provided on the operation panel unit 32 (see FIG. 2).

<Timer>
As shown in FIG. 7, the timer 39 turns on the ultraviolet light source units 26, 34, 46 by the light source control unit 36 after detecting that the user has gripped the grip unit 33 by the grip detection means 27, 37, 47. Alternatively, the timing of turning off is set. The timer 39 is provided in the light source control unit 36.

<Clinical chair>
As shown in FIG. 1, the medical chair 4 is a medical chair on which the patient sits at the time of medical treatment. The medical chair 4 includes a base portion 41, a seat portion 42, a backrest 43, a headrest 44 that supports the patient's head, an armrest 49 (grip portion 45), an ultraviolet light source portion 46, and a grip detection means 47. , And patient shift detection means 48.

The base portion 41 is a portion that serves as a base for the medical chair 4. In addition to the medical chair 4, the base portion 41 is provided with a unit main body portion 11, a doctor table 3, a doctor instrument hanger 15, and an assistant instrument hanger 16.
The seat 42 is a portion on which the patient sits.
The backrest 43 is a portion that supports the back of the patient and holds the patient in a predetermined medical position.
The headrest 44 is a portion that supports the patient's head.

<Grip part of medical chair>
As shown in FIG. 6, the grip portion 45 of the medical chair 4 is an armrest 49. The grip portion 45 includes an ultraviolet light source portion 46 that generates ultraviolet rays, and a grip detection means 47 that detects whether or not the grip portion 45 is gripped by a user by hand. At least a part of the grip portion 45 of the medical chair 4 is composed of an ultraviolet transmitting member U2 that transmits ultraviolet rays from the ultraviolet light source unit 46.

<Armrest>
The armrest 49 is a portion that supports the patient's elbow. The armrest 49 includes a core member 45a, covering members 45b and 45c that cover the core member 45a, and a rotating shaft portion 45d that rotatably connects the armrest 49 to the seat portion 42.

The core material 45a is a skeleton portion arranged on the center line of the armrest 49. The core material 45a is composed of a frame member extending in the front-rear direction. A plurality of ultraviolet light source portions 46 are provided on the upper surface and the lower surface of the core material 45a.

The covering member 45b is a member that covers the core material 45a and the ultraviolet light source portion 46 from the upper surface side. The covering member 45c is a member that covers the core material 45a and the ultraviolet light source portion 46 from the lower surface side. The covering members 45b and 45c are made of an ultraviolet transmitting member U2.

The rotation shaft portion 45d is arranged at a position closer to the front side of the seat portion 42, and the base end portion (front end portion) of the armrest 49 can be rotated to the upper part of the seat portion 42 or to the rear side of the backrest 43. It can be rotated.

<Ultraviolet ray transmitting member of medical chair>
The ultraviolet ray transmitting member U2 is made of a material that can guide ultraviolet rays from the ultraviolet light source unit 46. A porous or fibrous member is provided on the outside of the ultraviolet transmitting member U2.

<Ultraviolet light source part of the medical chair>
The ultraviolet light source portion 46 of the medical chair is arranged inside the armrest 49 (grip portion 45) so as to generate ultraviolet rays from the inside of the grip portion 45 to the outside. The ultraviolet light source unit 46 is composed of a plurality of light sources arranged on the core material 45a at appropriate intervals. The ultraviolet light source unit 46 is not limited to being fixed to the core material 45a, and may be arranged in the vicinity of the core material 45a.

The wavelength of the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46 is preferably 190 nm to 230 nm, or 230 nm to 280 nm, and more preferably has peaks at 193 nm, 207 nm, 222 nm, or 254 nm. ing. The ultraviolet light source units 26, 34, 46 are filters such as a handpass filter (not shown) that prevent the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46 from having wavelengths other than a specific (single) wavelength. ) Is provided. Light emitting sources that emit light in the wavelength range of 190 nm to 230 nm of the ultraviolet light source units 26, 34, and 46 include excimer lamps capable of irradiating the wavelength range and ultraviolet LEDs, and are light emitting sources that emit light in the wavelength range of 230 nm to 280 nm. There are an excimer lamp capable of irradiating a wavelength range, an ultraviolet LED, and a low-pressure mercury lamp.

The excimer lamp is, for example, an ArF (argon / fluorine) excimer lamp when the wavelength is 193 nm, a KrBr (crypton / bromine) excimer lamp when the wavelength is 207 nm, and a KrCl (crypton / chlorine) excimer lamp when the wavelength is 222 nm. When the wavelength is 254 nm, there is an HgXe (mercury / xenon) excimer lamp or the like. Of these, KrCl (Krypton / Chlorine) excimer lamps with a wavelength of 222 nm are the most preferable for killing the new coronavirus (official name is "SARS-Cov-2") in the shortest time.

The excimer lamp includes a double dielectric type (rectangular type) excimer lamp 5 shown in FIG. 8A and a single dielectric type (cylindrical type) excimer lamp 6 shown in FIGS. 9A and 9B. use.

<Double dielectric type excimer lamp>
As shown in FIG. 8A, the double dielectric type excimer lamp 5 includes a metal electrode 5a, a dielectric 5b, a discharge space 5c in which discharge plasma is generated, a dielectric 5d, and a metal mesh electrode 5e in this order from the upper side. Is configured to emit light irradiation 5f.

The two dielectrics 5b and 5d are made of plate-shaped quartz glass arranged in parallel with respect to the discharge space 5c.
The discharge space 5c is filled with a discharge gas. As the discharge gas, ultraviolet rays can be emitted by using a mixed gas of a rare gas and a halogen gas. Noble gases include ArF (193 nm), KrBr (207 nm), KrCl (222 nm), and HgXe (254 nm). As shown in FIG. 8B, the noble gas that kills the new coronavirus in the shortest time has a strong relative intensity of KrCl (krypton / chlorine) excimer lamp having a wavelength of 222 nm and is most preferable.

The metal electrode 5a is arranged above the dielectric 5b. A high frequency and a high voltage (several Hz to several MHz, several kV) are applied between the electrodes of the metal electrode 5a and the metal mesh electrode 5e. With the application of this voltage, positive and negative potentials are dielectriced on the surface of the dielectrics 5b and 5d on the discharge space 5c side, and when the surface potential difference reaches the discharge breakdown voltage, the discharge is performed in the discharge space 5c. , Discharge plasma is generated. Then, the excimer lamp 5 emits excimer light due to the collision between the electrons at the time of discharge and the enclosed gas molecules.

<Single dielectric type excimer lamp>
As shown in FIGS. 9A and 9B, the single-dielectric type excimer lamp 6 includes a derivative 6a, an external electrode 6b, an internal electrode 6c, and a discharge space 6d, and provides a light irradiation 6e. Emit.

The derivative 6a is made of cylindrical quartz glass.
The external electrode 6b is composed of a rod-shaped electrode provided on the outer surface of the derivative 6a.
The internal electrode 6c is composed of a rod-shaped electrode arranged on the center line of the derivative 6a.
The discharge space 6d is a space in the cylindrical derivative 6a. A gas body is injected into the discharge space 6d to generate discharge plasma. Then, when a low applied voltage is applied between the internal electrode 6c in the discharge space 6d and the external electrode 6b outside the derivative 6a which is a discharge tube, a discharge plasma is generated inside the derivative 6a and outside the derivative 6a. Ultraviolet rays are emitted from the light.

The ultraviolet ray generating means is, for example, a graph showing the relative intensity of ultraviolet rays (the rare gas of FIG. 8B has the characteristics of KrCl (krypton / chlorine), and as described above, a bandpass filter (not shown) is used to obtain a peak wavelength. A bandpass filter (not shown) may be used so that only a specific wavelength of 222 nm is passed, or a wavelength outside the range of 190 nm to 230 nm or 230 nm to 280 nm is not passed.
In this way, the ultraviolet generating means selects only a specific wavelength in the wavelength range of 190 nm to 230 nm or 230 nm to 280 nm by selecting a rare gas or extracting a wavelength passing region of a bandpass filter (not shown). It may be generated, or the wavelength may be generated in a specific range of 190 nm to 230 nm or 230 nm to 280 nm.

<Means for detecting gripping of a medical chair>
As shown in FIG. 6, the grip detection means 47 of the medical chair 4 is a sensor that detects whether or not the user has gripped the grip portion 45 of the medical chair 4. The grip detection means 47 is similar to the grip detection means 27 of the medical surgical light 2 (see FIG. 4) and the grip detection means 37 of the doctor table 3 (see FIG. 3) described above, and the user uses the armrest 49 of the medical chair 4. It is a sensor that turns on when it comes into contact with (grip portion 45) and turns off when it comes into contact with the armrest 49. The grip detection means 47 includes, for example, a capacitance type touch sensor (touch switch). The grip detection means 47 is formed of, for example, a transparent sheet-like member that transmits ultraviolet rays, and is attached to the entire surface or a part of the grip detection means 47. The grip detection means 47 is electrically connected to the power supply AC via the light source control unit 36 of the doctor table 3.

<Patient change detection means>
As shown in FIG. 1 or FIG. 7, the patient change detection means 48 is a sensor that detects the change of a patient to be treated. That is, the patient change detection means 48 is a detection means for detecting whether or not another patient or the like has been seated after the patient seated in the medical chair 4 has left the medical chair 4. The patient shift detecting means 48 is provided on the seat 42 or the backrest 43. The patient change detection means 48 determines that the patient has changed to a different patient based on the seating switch (or weight sensor) that detects that the patient has been seated in the medical chair 4 and the ON / OFF signal from the seating switch. It is composed of a control device 30 (light source control unit 36) and a control device 30 (light source control unit 36).
The patient change detection means 48 is not limited to the one provided with a seating switch, and may be a pressure sensor for detecting the presence or absence of a patient, a sensor for detecting human infrared rays emitted by a patient, a light reflection type sensor, or the like. good.

<Human detection means>
The human detection means HS shown in FIG. 7 is a motion sensor that detects whether or not there is a person within the irradiation range of the ultraviolet rays generated from the ultraviolet light source units 26, 34, and 46. In other words, the human detection means HS is a sensor for confirming that there is no person within the irradiation range of the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46. The human detection means HS is composed of, for example, a camera, and is installed on an arm 13 (see FIG. 1), a ceiling surface or a wall of an examination room, or the like. The human detection means HS and the patient change detection means 48 are electrically connected to the light source control unit 36. Therefore, the light source control unit 36 controls to irradiate ultraviolet rays when it detects that there is no person based on the detection results of the human detection means HS and the patient change detection means 48.

<Instrument hanger for doctors>
As shown in FIG. 2, the doctor instrument hanger 15 is a place where various instruments 17 used by the operator are locked.

<Instrument hanger for assistant>
The assistant instrument hanger 16 shown in FIG. 1 is a place where various instruments 17 (see FIG. 2) used by the assistant are locked. As with the doctor table 3, the assistant instrument hanger 16 may also be provided with an ultraviolet light source unit 34 and a grip portion 33 made of an ultraviolet transmitting member U1.

<Control device>
The control device 30 shown in FIG. 7 is a device that controls the operation of the dental medical care device 100. The control device 30 receives drive signals from the grip detection means 27, 37, 47, the patient change detection means 48, the person detection means HS, the operation panel unit 32 of the doctor table 3, and the like, and controls each means to control each means. To execute the control for driving the lighting light source 25 and the ultraviolet light source units 26, 34, 46. The control device 30 is provided on the doctor table 3, for example. The control device 30 is electrically connected to a liquid crystal display device (not shown) and a power supply AC.

[Action effect]
Next, the operation and effect of the dental medical device 100 (medical device S) according to the embodiment of the present invention will be described.

As shown in FIG. 1 or 7, the dental medical device 100 (medical device S) sterilizes the virus on the grips 23, 33, and 45 gripped by the operator, assistant, patient, or other user. The ultraviolet rays generated from the ultraviolet light source units 26, 34, and 46 can be sterilized by irradiating them from the inside. Further, the ultraviolet rays generated from the ultraviolet light source portions 26, 34, 46 pass through the surfaces of the grip portions 23, 33, 45 composed of the ultraviolet transmitting members U1 and U2 and are irradiated to the user's hand or the like, so that a virus Infection can be prevented.

As described above, as shown in FIGS. 1 to 7, the present invention includes gripping portions 23, 33, 45 and ultraviolet light source portions 26, 34, 46 that generate ultraviolet rays having one or a plurality of wavelengths. In the medical device S, the ultraviolet light source portions 26, 34, 46 are arranged so that ultraviolet rays pass from the inside to the outside of the grip portions 23, 33, 45, and at least the grip portions 23, 33, 45. A part thereof is composed of ultraviolet transmitting members U1 and U2 that transmit ultraviolet rays from the ultraviolet light source units 26, 34, and 46.

According to such a configuration, in the medical device S of the present invention, the ultraviolet light source portions 26, 34, 46 generate ultraviolet rays from the inside to the outside of the grip portions 23, 33, 45, and the grip portions 23, 33, 45 can be sterilized with ultraviolet rays to surely prevent infection.
Further, since ultraviolet rays are radiated from the inside of the grip portions 23, 33, 45 to the outside of the portions of the grip portions 23, 33, 45 composed of the ultraviolet transmitting members U1 and U2, the grip portions 23, 33 gripped by the user. , 45 surfaces and the user's hands can be sterilized by irradiating them with ultraviolet rays. Therefore, the grip portions 23, 33, 45 can be reliably prevented from being infected, and the user's hand or the like touching the grip portions 23, 33, 45 during ultraviolet irradiation can also be exposed to ultraviolet rays. , Can be sterilized efficiently. Therefore, the medical device S can easily prevent the grip portions 23, 33, and 45 from being infected without much effort.

Further, as shown in FIGS. 3, 5 and 6, the ultraviolet light source portions 26, 34, 46 are arranged inside the grip portions 23, 33, 45.

According to this configuration, since the ultraviolet light source portions 26, 34, 46 are directly arranged inside the grip portions 23, 33, 45, the grip portions 23, 33, 45 are arranged from the inside through the ultraviolet transmitting members U1 and U2. Can be sterilized.

Further, as shown in FIG. 6, the grip portion 45 is an armrest 49, and the armrest 49 has a core material 45a and covering members 45b and 45c covering the core material 45a, and one or a plurality of ultraviolet light sources. The portion 46 is arranged in the vicinity of the core material 45a or the core material 45a, and at least a part of the covering members 45b and 45c is made of the ultraviolet transmitting member U2.

According to this configuration, since the ultraviolet light source unit 46 is directly arranged inside the armrest 49, the armrest 49 can be sterilized from the inside through the ultraviolet transmitting member U2.

Further, as shown in FIGS. 3, 5 and 6, the ultraviolet transmitting members U1 and U2 can guide ultraviolet rays from the ultraviolet light source units 26, 34 and 46.

According to this configuration, the ultraviolet transmitting members U1 and U2 are capable of guiding light, and when the ultraviolet light source portions 26, 34, 46 are arranged inside the grip portions 23, 33, 45, one ultraviolet light source is provided. The gripping portions 23, 33, 45 can be irradiated from the portions 26, 34, 46 via the surrounding ultraviolet transmitting members U1 and U2. Therefore, the number and assembly man-hours of the ultraviolet light source units 26, 34, and 46 can be reduced to reduce the cost.

Further, the ultraviolet transmitting members U1 and U2 shown in FIGS. 3, 5 and 6 are porous or fibrous members.

According to such a configuration, since the ultraviolet transmitting members U1 and U2 are porous or fibrous members, they can transmit ultraviolet rays, and thus touch the surface of the grip portion and the grip portions 23, 33, 45. It is possible to sterilize the contact area of a person.
The porous material is preferably a sponge material such as urethane, which is breathable. Further, the fibrous member may be a low-density material such as cotton, silk or nylon, or a non-woven fabric or the like. Moreover, these combinations may be used. Further, since the porous or fibrous member is a soft and highly breathable material, it is suitable for patients when used as a material for the armrest (grip portion) 49.

Further, as shown in FIGS. 3, 5 and 6, the ultraviolet transmitting members U1 and U2 are any of inorganic materials such as amorphous fluororesin, acrylic and quartz glass.

According to such a configuration, since the ultraviolet transmitting members U1 and U2 are any of an inorganic material such as amorphous fluororesin, acrylic or quartz glass, ultraviolet rays can be transmitted, so that the surface of the grip portion and the surface of the grip portion and the ultraviolet rays are transmitted. The contact points of those who are in contact with the grips 23, 33, 45 can be sterilized. Further, since the amorphous fluororesin is easy to process, it is easy to mold the resin. Further, a compound such as urethane acrylate containing fluorine or polypropylene may be used instead of the amorphous fluororesin. Since these materials have strength, they are suitable as materials for the grip portion 33 of the doctor table 3 and the grip portion 23 of the surgical light 2.
The ultraviolet transmissive members U1 and U2 may be provided with a porous or fibrous member on the outside of an inorganic material such as an amorphous fluororesin, acrylic or quartz glass, or may be combined with these materials to form a multi-layer structure. It may be.

Further, as shown in FIGS. 3, 5 and 6, the ultraviolet light source units 26, 34, 46 have wavelengths other than the specific (single) wavelengths of the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46. It is provided with a filter (not shown) for preventing the presence of UV rays.

According to such a configuration, when the ultraviolet light source units 26, 34, and 46 have a plurality of wavelengths, a specific wavelength can be extracted by a filter (not shown) such as a handpass filter. The filter also avoids harm to the body by preventing the mixture of wavelengths other than specific wavelengths.

Further, as shown in FIG. 1 or 7, the medical device S (dental medical care device 100) detects the change of the light source control unit 36 that controls the ultraviolet light source units 26, 34, 46 and the patient to be treated. The light source control unit 36 controls the ultraviolet light source units 26, 34, and 46 based on the patient change detection means 48.

According to this configuration, the medical device S (dental medical device 100) has a light source control unit 36 and a patient change detection means 48, so that each time a patient changes, the ultraviolet light source units 26 and 34 , 46 can be driven automatically. Therefore, the dental medical apparatus 100 can prevent cross-infection by automatically irradiating ultraviolet rays to efficiently sterilize the grip portions 23, 33, and 45.

Further, the wavelengths of the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46 shown in FIGS. 3, 5 and 6 have peaks in the range of 190 nm to 230 nm.

According to this configuration, the ultraviolet rays having a wavelength peaked at 190 nm to 230 nm generated from the ultraviolet light source units 26, 34, 46 sterilize the grip portions 23, 33, 45 while avoiding harm to the body. be able to. Ultraviolet rays of this wavelength are effective in killing Staphylococcus aureus and Pseudomonas aeruginosa.

Further, the wavelength of the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46 shown in FIGS. 3, 5 and 6 has a peak at 207 nm.

According to such a configuration, the ultraviolet rays having a wavelength peaked at 207 nm generated from the ultraviolet light source units 26, 34, 46 sterilize the grip portions 23, 33, 45 for a specific virus while avoiding harm to the body. It can be performed.

Further, the wavelength of the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46 shown in FIGS. 3, 5 and 6 has a peak at 222 nm.

According to this configuration, ultraviolet rays having a peak wavelength of 222 nm generated from the ultraviolet light source units 26, 34, 46 avoid harm to the body, and in particular, the new coronavirus (official name is "SARS-Cov-"). Regarding 2 ”), the gripping portions 23, 33, and 45 can be effectively sterilized.

Further, the wavelength of the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46 has a peak in 230 nm to 280 nm.

According to such a configuration, the ultraviolet rays having a wavelength peaked at 230 nm to 280 nm generated from the ultraviolet light source units 26, 34, 46 can sterilize the grip portions 23, 33, 45.

Further, the wavelength of the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46 has a peak at 254 nm.

According to such a configuration, the ultraviolet rays having a wavelength peaked at 254 nm generated from the ultraviolet light source portions 26, 34, 46 have the strongest sterilizing effect, and the grip portions 23, 33, 45 can be sterilized efficiently in a short time. It can be carried out.

Further, as shown in FIG. 7, the medical device S (dental medical care device 100) has a light source control unit 36 that controls the ultraviolet light source units 26, 34, 46, and the grip units 23, 33, 45 are The grip detection means 27, 37, 47 for detecting whether or not the user has gripped the grip portions 23, 33, 45, and the light source control unit 36 detects grip by the grip detection means 27, 37, 47. After it is no longer used, ultraviolet rays are generated from the ultraviolet light source units 26, 34, and 46.

According to such a configuration, the medical device S (dental medical device 100) detects that the user is gripping by the gripping detection means 27, 37, 47, and after the gripping is stopped, the ultraviolet rays are gripped. 23, 33, 45 are automatically irradiated. As a result, the grip portions 23, 33, and 45 can be efficiently sterilized to prevent cross infection.

Further, as shown in FIG. 7, the medical device S (dental medical care device 100) has a light source control unit 36 that controls the ultraviolet light source units 26, 34, 46, and the grip units 23, 33, 45 are It has grip detection means 27, 37, 47 for detecting whether or not the user has gripped, and the light source control unit 36 is an ultraviolet light source unit at least while grip is detected by the grip detection means 27, 37, 47. Ultraviolet rays are generated from 26, 34, and 46.

According to such a configuration, the medical device S (dental medical device 100) detects that the user is gripping the grip portions 23, 33, 45 by the grip detection means 27, 37, 47, and the grip is performed. It can be sterilized by irradiating with ultraviolet rays throughout the process. Therefore, the medical device S (dental medical device 100) efficiently sterilizes the gripping portions 23, 33, 45 and the hand of the person holding the grip, and spreads the cross-infection and the virus to other places. Can be prevented.

Further, as shown in FIG. 7, the human detection means HS for detecting whether or not there is a person within the irradiation range of the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46 is provided.

According to such a configuration, the human detecting means HS can detect that there is no person within the irradiation range of the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46, so that the human detecting means HS can detect the ultraviolet rays. When it is confirmed that there is no person in the irradiation range, ultraviolet rays can be irradiated. Therefore, the light source control unit 36 can prevent the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46 from hitting the patient. As a result, the human detection means HS can sterilize the grip portions 23, 33, 45 while preventing the ultraviolet light source portions 26, 34, 46 from irradiating the human with ultraviolet rays.

Further, in the medical device S (dental medical care device 100), whether or not there is a person within the irradiation range of the light source control unit 36 that controls the ultraviolet light source units 26, 34, 46 and the ultraviolet rays generated from the ultraviolet light source unit. The person detecting means for detecting the presence of a person, the person detecting means HS for detecting whether or not there is a person within the irradiation range of the ultraviolet rays generated from the ultraviolet light source units 26, 34, 46, and the patient for detecting the change of the patient to be treated. The light source control unit 36 includes the change detection means 48, and the light source control unit 36 detects the change of the patient to be treated by the patient change detection means 48, and further, when the person detection means HS does not detect a person, the ultraviolet light source unit 26, Ultraviolet rays are generated from 34 and 46.

According to such a configuration, when the light source control unit 36 detects the change of the patient to be treated by the patient change detection means 48 and further detects that there is no person in the ultraviolet irradiation range by the person detection means HS. In addition, ultraviolet rays can be generated from the ultraviolet light source units 26, 34, 46. Therefore, for example, when the light source control unit 36 irradiates ultraviolet rays in the wavelength range of 230 nm to 280 nm from the ultraviolet light source units 26, 34, 46, the ultraviolet rays from the ultraviolet light source units 26, 34, 46 are more reliably received by the patient. It is possible to avoid hitting.

[First modification]
The present invention is not limited to the above-described embodiment, and various modifications and modifications can be made within the scope of the technical idea thereof, and the present invention may extend to these modified and modified inventions. Of course.

FIG. 10 is a diagram showing a first modification of the medical device S according to the embodiment of the present invention, and is an explanatory diagram showing the structure of the grip portion 33A of the doctor table 3A.

For example, the ultraviolet light source portion 34 of the doctor table 3 shown in FIGS. 2 and 3 described in the above embodiment is not limited to being arranged inside the grip portion 33. As shown in FIG. 10, the ultraviolet light source portion 34A of the doctor table 3A is provided on the sleeve 32A fitted to the base end portion of the grip portion 33A to transmit ultraviolet rays generated from the ultraviolet light source portion 34A so as to be able to guide the ultraviolet rays. The grip portion 33A may be sterilized by irradiating the entire inside of the grip portion 33A from the base end portion of the grip portion 33A made of the member U1.

In this case, the grip portion 33A is entirely composed of an ultraviolet transmitting member U1 capable of guiding ultraviolet rays. The grip portion 33A is made of an ultraviolet transmitting material such as quartz or an acrylic round bar that guides ultraviolet rays. A hole-shaped light source installation portion 33Aa for inserting the ultraviolet light source portion 34A is formed at the base end portion of the grip portion 33A.

Further, the ultraviolet light source unit 34A includes, for example, an ultraviolet light emitting element (not shown), a lens unit 32Aa covering the ultraviolet light emitting element, and a lead frame 32Ab protruding from the lens unit 32Aa. The ultraviolet light source unit 34A inserts the lead frame 32Ab into the inner bottom of the bottomed tubular sleeve 32A that is detachably attached to the base end of the grip portion 33A, and arranges the lens portion 32Aa on the inner bottom of the sleeve 32A. And is provided on the sleeve 32A. Therefore, the ultraviolet light source unit 34A is arranged at the base end portion of the grip portion 33A by inserting the sleeve 32A into the base end portion of the grip portion 33A.

According to this configuration, since the ultraviolet light source portion 34A is arranged outside the grip portion 33A, the shape of the grip portion 33A can be freely changed, the grip portion 33A can be made thinner or smaller, and the ultraviolet light source portion 34A can be made thinner or smaller. And the sleeve 32A can be freely attached and detached. The ultraviolet light source unit 34A is turned on and off by pressing a switch provided on the doctor table 3A or by operating a foot switch or the like to switch ON / OFF. Therefore, the grip detection means 27 (see FIG. 7) described in the embodiment may not be provided.

[Second modification]
FIG. 11 is a diagram showing a second modification of the medical device S according to the embodiment of the present invention, and is an explanatory view showing the structure of the grip portion 23B of the medical surgical light 2B.

For example, the ultraviolet light source portion 26 of the medical surgical light 2 shown in FIGS. 4 and 5 described in the above embodiment is not limited to being arranged inside the grip portion 23. As shown in FIG. 11, the ultraviolet light source portions 26B and 26B of the medical shadowless lamp 2B are provided on sleeves 32B attached to both ends of the grip portion 23B having an arc shape (substantially U-shaped), and are provided with two ultraviolet light sources. The entire inside of the grip portion 23B may be irradiated from both ends of the grip portion 23B made of the ultraviolet transmissive member U1 that can guide the ultraviolet rays generated from the portions 26B and 26B.

In this case, the grip portion 23B is entirely formed of the ultraviolet transmissive member U1 as in the grip portion 33A of the first modification, and the light source installation portions 32Ba are formed at both ends of the arc-shaped grip portion 23B. ..
Further, the ultraviolet light source unit 26B and the sleeve 32B are the same as the ultraviolet light source unit 34A and the sleeve 32A of the first modification. Therefore, the grip detection means 27 (see FIG. 7) may not be provided.

According to such a configuration, since the ultraviolet light source portions 26B and 26B are detachably arranged at the end of the grip portion 23B, the grip portion 23B can be formed into a thin and simple structure or can be formed in a freely bent state. can do.

[Third variant]
FIG. 12 is a diagram showing a third modification of the medical device S according to the embodiment of the present invention, and is an explanatory diagram showing the structure of the grip portion 33C of the doctor table 3C.

As shown in FIG. 12, the grip detection means 37C including the capacitance type sensor (touch switch) may be provided inside (hollow portion) of the grip portion 33C.

In this case, the grip portion 33C is made of a hollow transparent insulator. The grip detecting means 37C is composed of an electrode sheet attached to the inner wall 33Ca of the grip portion 33C. The electrode sheet is attached to acrylic (which may be another material of the ultraviolet transmitting member U1) as a dielectric (insulating material). Further, a plurality of electrode sheets may be provided. Further, the ultraviolet light source unit (not shown) may be outside or inside the grip portion 33C.

According to this configuration, since the grip detection means 37C is provided inside the grip portion 33C (hollow portion), even if the user grips and uses the grip portion 33C, the grip detection means 37C can be touched. Therefore, it is possible to prevent the grip detection means 37C from being damaged.

[Fourth variant]
FIG. 13A is a diagram showing a fourth modification of the medical device S according to the embodiment of the present invention, and is an explanatory diagram showing a state when the user's finger is separated from the grip portion 33D. FIG. 13B is a diagram showing a fourth modification of the medical device S according to the embodiment of the present invention, and is an explanatory diagram showing a state when a user's finger comes into contact with the grip portion 33D. FIG. 13C is an enlarged view of a main part of FIG. 13B.

As shown in FIGS. 13A to 13C, the grip detection means 37D made of an electrode sheet may be provided on the lower surface of the grip portion 33D made of a transparent insulator such as glass or acrylic.
In this case, the grip portion 33D may be partially formed of the ultraviolet transmitting member U1 and the other portion may not be the ultraviolet transmitting member U1.

According to this configuration, since the grip detection means 37D is provided on the lower surface of the grip portion 33D, even if the user grips and uses the grip portion 33D, the grip detection means 37D does not touch the grip detection means 37D. It is possible to prevent the grip detection means 37D from being damaged.

[Fifth variant]
FIG. 14 is a diagram showing a fifth modification of the medical device S according to the embodiment of the present invention, and is an explanatory diagram showing the structure of the grip portion 33E of the doctor table 3E.

As shown in FIG. 14, the grip detection means 37E may be a push button switch provided on the outer peripheral portion of the grip portion 33E.

In this case, the grip detection means 37E including the push button switch is installed on the lower surface side of the grip portion 33E. The ultraviolet light source unit 34E is attached to the base end of the grip portion 33E by the sleeve 32E in the same manner as the ultraviolet light source portion 34A (see FIG. 10) of the first modification, but may be arranged inside the grip portion 33E. Further, it may be arranged outside the grip portion 33E.

According to such a configuration, when the user grips the grip portion 33E, the grip detection means 37E detects that the user grips the grip portion 33E by pushing down and turning on the operation portion at the same time as gripping. ..

[6th variant]
FIG. 15 is a diagram showing a sixth modification of the medical device S according to the embodiment of the present invention, and is an explanatory diagram showing the structure of the grip portion 33F of the doctor table 3F.

As shown in FIG. 15, the grip detection means 37F may be made of an optical sensor such as an infrared sensor (or a line sensor) provided on the lower surface of the grip portion 33F, or a resistance film.
In this case, the grip detection means 37F may be disposed inside the grip portion 33F, or may be disposed outside the grip portion 33F.

Even if the grip detection means 37F is provided on the grip 33F in this way, it is possible to detect that the user has gripped the grip 33F when the user grips the grip 33F.

[Other variants]
For example, the patient change detecting means 48 shown in FIG. 1 may detect a patient change by using a camera device such as a thermo camera instead of this sensor. In this case, the patient change detection means 48 is attached to the arm 13 or the housing 21 of the medical surgical light 2 .

In the first modified example and the second modified example, as an example of the grip portions 23, 23B, 33, 33A, 45, the grip portions 23, 23B and the doctor table 3, 3B of the medical shadowless lamps 2, 2B are used. Although the gripping portions 33 and 33A of the above and the gripping portion 45 (armrest 49) of the medical chair 4 have been described as an example, any part of the medical equipment that the user grips by hand can be applied. For example, the grip may be a delivery table armrest, a wheelchair armrest, an operating table armrest and hand support, a bed and operating table handrail, a grip of a medical imaging device, and the like.

1 Dental medical equipment 2, 2B Surgical light for medical treatment 3, 3A, 3C, 3E, 3F Doctor table 4 Medical chair 23, 23B, 33, 33A, 33C, 33D, 33E, 33F, 45 Grips 26, 26B, 34, 34A, 46 Ultraviolet light source unit 27, 37, 37C, 37D, 37E, 37F, 47 Grip detection means 36 Light source control unit 45a Core material 45b, 45c Covering member 48 Patient change detection means 49 Armrest (grip part)
100 Dental medical equipment HS Human detection means S Medical equipment U1, U2 Ultraviolet ray transmitting member

Claims (16)

With the grip
An ultraviolet light source unit that generates ultraviolet rays having one or more wavelengths, and
A light source control unit that controls the ultraviolet light source unit and
A medical device having a patient change detection means for detecting a change of a patient to be treated .
The ultraviolet light source portion is arranged so that ultraviolet rays pass from the inside of the grip portion to the outside.
At least a part of the grip portion is composed of an ultraviolet transmitting member that transmits ultraviolet rays from the ultraviolet light source portion.
The light source control unit determines that the patient change detection means has changed the patient to be treated based on the signal that the patient seated in the medical chair is turned on and off away from the medical chair, and the ultraviolet light source is used. A medical device characterized by generating ultraviolet rays from a part . The medical device according to claim 1, wherein the ultraviolet light source portion is arranged inside the grip portion. The grip portion is an armrest and
The armrest has a core material and a covering member that covers the core material.
The ultraviolet light source unit may be arranged in the vicinity of the core material or the core material.
The medical device according to claim 1, wherein at least a part of the covering member is composed of the ultraviolet transmitting member. The medical device according to claim 1 or 3, wherein the ultraviolet transmitting member can guide ultraviolet rays from the ultraviolet light source unit. The medical device according to claim 1 or 4, wherein the ultraviolet-transmitting member is a porous or fibrous member. The medical device according to any one of claims 1 to 5, wherein the ultraviolet transmissive member is an inorganic material of any one of amorphous fluororesin, acrylic, and quartz glass. .. Any of claims 1 to 6, wherein the ultraviolet light source unit includes a filter that prevents ultraviolet rays generated from the ultraviolet light source unit from having a wavelength other than a specific (single) wavelength. The medical device according to item 1. The medical device according to any one of claims 1 to 7, wherein the wavelength of ultraviolet rays generated from the ultraviolet light source unit has a peak in the range of 190 nm to 230 nm. The medical device according to claim 8, wherein the wavelength of ultraviolet rays generated from the ultraviolet light source unit has a peak at 207 nm. The medical device according to claim 8, wherein the wavelength of ultraviolet rays generated from the ultraviolet light source unit has a peak at 222 nm. The medical device according to any one of claims 1 to 7, wherein the wavelength of ultraviolet rays generated from the ultraviolet light source unit has a peak in 230 nm to 280 nm. The medical device according to claim 11, wherein the wavelength of ultraviolet rays generated from the ultraviolet light source unit has a peak at 254 nm. It has a light source control unit that controls the ultraviolet light source unit, and has a light source control unit.
The grip portion has a grip detection means for detecting whether or not the grip portion is gripped by the user.
The medical device according to claim 11 or 12, wherein the light source control unit generates ultraviolet rays from the ultraviolet light source unit after the grip is no longer detected by the grip detecting means. It has a light source control unit that controls the ultraviolet light source unit, and has a light source control unit.
The grip portion has a grip detection means for detecting whether or not the user has gripped the grip.
The medical treatment according to any one of claims 8 to 10, wherein the light source control unit generates ultraviolet rays from the ultraviolet light source unit at least while grip is detected by the grip detecting means. Equipment. The medical treatment according to any one of claims 1 to 14, further comprising a person detecting means for detecting whether or not there is a person within the irradiation range of ultraviolet rays generated from the ultraviolet light source unit. Equipment. A light source control unit that controls the ultraviolet light source unit and
A person detecting means for detecting whether or not there is a person within the irradiation range of the ultraviolet rays generated from the ultraviolet light source unit is provided.
The light source control unit is characterized in that the patient change detection means detects the change of a patient to be treated, and further, when the person detection means does not detect a person, the ultraviolet light source unit generates ultraviolet rays. The medical device according to any one of claims 11 to 13.

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