JP2018057497A - Foot controller and medical treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foot controller which allows an operator to rest his or her foot while the operator is placing the foot on the pedal, and also to provide a medical treatment apparatus equipped with such a foot controller.SOLUTION: A foot controller 5 includes a body part 5a, a pedal 5b, and a rotary shaft 5d. The body part 5a includes a bottom portion 5a1. The pedal 5b includes a tread 5b2 and convex portions 5b3. The tread 5b2 is located on the opposite side of the bottom portion 5a1 with respect to the body part 5a, with one end E1 and the other end E2 thereof, and is arranged such that the distance from the bottom portion 5a1 becomes larger as it goes from the one end E1 toward the other end E2. The convex portions 5b3 protrude from the tread 5b2 in a direction away from the bottom portion 5a1. The rotary shaft 5d rotatably supports the pedal 5b with respect to the body part 5a such that the distance from the other end E2 to the bottom portion 5a1 varies. The convex portions 5b3 are disposed directly above the rotary shaft 5d in a direction perpendicular to the tread 5b2.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a foot controller and a medical medical device.

  In a dental medical device as an example of a medical medical device, a medical device such as a medical chair and a medical device is operated when an operator steps on a foot controller pedal with his / her foot. Such a foot controller is disclosed in, for example, Japanese Utility Model Publication No. 7-22249 (Patent Document 1).

Japanese Utility Model Publication No. 7-22249

  In the foot controller as described above, it is necessary for the surgeon to step on the pedal with his / her foot during medical treatment, which places a burden on the surgeon's foot. Therefore, when the surgeon does not need to depress the pedal, it is required to rest the surgeon's feet. In addition, during medical treatment, the operator frequently operates the medical device by stepping on the pedal or not, or adjusting the amount of stepping on the pedal. For this reason, it is always necessary to place the operator's foot on the pedal.

  However, in the foot controller as described above, when the operator's foot is placed on the pedal, the pedal is depressed and the medical device is operated. Therefore, the operator's foot cannot be rested in a state where the operator's foot is placed on the pedal.

  The present invention has been made in view of the above problems, and an object thereof is to provide a foot controller and a medical medical device capable of resting an operator's foot while the operator's foot is placed on a pedal. It is.

  The foot controller of the present invention includes a main body, a pedal, and a rotation shaft. The main body has a bottom. The pedal has a tread surface and a convex portion. The tread surface is located on the opposite side of the bottom portion with respect to the main body portion, and has one end and the other end, and is arranged so that the distance from the bottom portion increases from one end to the other end. The convex portion protrudes from the tread surface to the side opposite to the bottom portion. The rotary shaft rotatably supports the pedal with respect to the main body so that the distance from the other end to the bottom is variable. The convex portion is arranged so as to overlap the rotation axis in a direction orthogonal to the tread surface.

  Another foot controller of the present invention includes a main body, a pedal, a spring, and a rotating shaft. The main body has a bottom. The pedal has a tread surface and a convex portion. The tread surface is located on the opposite side of the bottom portion with respect to the main body portion, and has one end and the other end, and is arranged so that the distance from the bottom portion increases from one end to the other end. The convex portion protrudes from the tread surface to the side opposite to the bottom portion. The spring biases the pedal against the main body so that the distance from the other end to the bottom becomes long. The rotary shaft rotatably supports the pedal with respect to the main body so that the distance from the other end to the bottom is variable. The first moment obtained by multiplying the elastic force of the spring by the distance from the spring to the rotating shaft in the direction in which the one end and the other end face each other is the force acting on the convex portion in the direction in which the one end and the other end face each other. It is larger than the second moment multiplied by the distance from the convex portion to the rotation axis.

  According to the foot controller of the present invention, since the convex portion is arranged so as to overlap the rotation axis in a direction perpendicular to the tread surface, when the operator's foot is placed on the convex portion, the pedal is rotated. Can be suppressed. Therefore, it is possible to prevent the pedal from being depressed when the operator's foot is placed on the convex portion. Thereby, the operator's foot can be rested in a state where the operator's foot is placed on the pedal. Therefore, the accumulation of fatigue due to the operation of the medical device can be reduced for the operator who is the operator.

  According to another foot controller of the present invention, the first moment obtained by multiplying the elastic force of the spring by the distance from the spring to the rotation axis in the direction in which the one end and the other end of the tread face each other acts on the convex portion. It is larger than the second moment obtained by multiplying the force by the distance from the convex portion to the rotation axis in the direction in which the one end and the other end of the tread face each other. Therefore, it is possible to prevent the pedal from being depressed when the operator's foot is placed on the convex portion. Thereby, the operator's foot can be rested in a state where the operator's foot is placed on the pedal. Therefore, the accumulation of fatigue due to the operation of the medical device can be reduced for the operator who is the operator.

It is a perspective view showing roughly the composition of the medical treatment device in one embodiment of the present invention. It is a block diagram of the medical treatment apparatus in one embodiment of this invention. It is a perspective view which shows roughly the structure of the foot controller in one embodiment of this invention. FIG. 4 is an exploded partial cross-sectional perspective view taken along line IV-IV in FIG. 3. It is a fragmentary sectional view which follows the VV line of FIG. It is a top view which shows a mode that the foot controller in one embodiment of this invention is operated. It is a fragmentary sectional view in the cross-sectional position corresponding to FIG. 5 which shows a mode that the foot controller in one embodiment of this invention is operated. It is a side view which shows a mode that the foot controller in one embodiment of this invention is operated. It is a perspective view which shows roughly the structure of the modification of the foot controller in one embodiment of this invention.

Embodiments according to the present invention will be described with reference to the drawings.
In the present embodiment, as an exemplary embodiment of the medical medical device according to the present invention, a medical medical device in the form of a chair unit that can be used for dental medical treatment will be described. The medical medical device according to the present invention is not limited to dentistry, and can be applied to medical treatments of all medical departments such as ophthalmology, otolaryngology, radiology, and veterinary medicine. In addition, the medical medical device according to the present invention is not limited to a chair unit, even for dentistry, but is a portable dental unit carried for visiting medical care, or an intraoral camera, scaler, root Various modes that can be driven alone, such as a tube therapy motor, may be used. Medical treatment includes diagnosis and treatment.

  FIG. 1 is a schematic diagram showing the configuration of the appearance of a medical diagnostic apparatus 10. FIG. 2 is a block diagram schematically showing an internal configuration of the medical diagnostic apparatus 10.

  As shown in FIG. 1, a medical diagnostic apparatus 10 includes a medical chair 1, a basin unit 2, a tray table 3, a medical instrument 4, a foot controller 5, a monitor 6, a lighting device 7, and an operation panel. 8 and a control device 9.

  As shown in FIG. 2, the medical diagnostic apparatus 10 includes a sheet driving unit 11, a panel control unit 13, a medical instrument driving unit 14, and a monitor control unit 15 as functional units that exhibit predetermined functions. The basin control unit 16 and the illumination control unit 17 are provided. Each of these functional units has a role as a functional unit that exhibits a function based on an operator's touch operation on an operation panel 8 to be described later. Each of these functional units is configured by a computer having a CPU (Central Processing Unit) and a memory (ROM (Read Only Memory), RAM (Random Access Memory) (not shown)) mounted on a substrate. .

  The medical chair 1 is a chair on which a patient sits when receiving medical treatment from a doctor, a headrest 1a that supports the patient's head, a backrest 1b that supports the patient's back, a seat sheet 1c that supports the tail of the patient, And a footrest 1d for supporting the foot. The headrest 1a, the backrest 1b, the seat surface seat 1c, and the footrest 1d are connected to the seat drive unit 11. The seat drive unit 11 drives the headrest 1a, the backrest 1b, the seat surface seat 1c, and the footrest 1d.

  For example, the seat surface seat 1c can be raised based on the control of the seat drive unit 11 (also referred to as raising the medical chair 1), and thereby the patient sitting on the medical chair 1 can be raised. On the other hand, based on the control of the seat drive unit 11, the seat surface seat 1c can be lowered (also referred to as lowering the medical chair 1), whereby the patient sitting on the medical chair 1 can be lowered. Further, based on the control of the seat driving unit 11, the headrest 1a, the backrest 1b, and the footrest 1d can be moved in the vertical direction with respect to the seat surface seat 1c (also referred to as raising the medical chair 1). Thereby, the patient sitting on the medical chair 1 can be put into the sitting posture. On the other hand, based on the control of the seat drive unit 11, the headrest 1a, the backrest 1b, and the footrest 1d can be moved in the horizontal direction with respect to the seat surface seat 1c (also referred to as tilting the medical chair 1), As a result, the patient sitting on the medical chair 1 can be in a supine posture.

  As described above, the seat drive unit 11 has a function of raising, lowering, standing, and tilting the medical chair 1 by driving the headrest 1a, the backrest 1b, the seat surface seat 1c, and the footrest 1d.

  The foot controller 5 receives an operation for driving the medical chair 1 and an operation for driving a medical instrument 4 to be described later by a stepping operation by a doctor or the like.

  For example, when a switch for driving a medical chair provided in the foot controller 5 is stepped on, a control signal is output from the operation unit 12 included in the foot controller 5 to the seat driving unit 11. The medical chair 1 is driven by the control. Further, when a switch for driving a medical instrument provided in the foot controller 5 is stepped on, a control signal is output from the operation unit 12 to the medical instrument drive unit 14, and the medical instrument is controlled by the control of the medical instrument drive unit 14. The instrument 4 is driven.

  As described above, the operation unit 12 has a function of receiving an operation for driving the medical chair 1 and the medical instrument 4.

  The tray table 3 is used as a storage table during medical treatment. The tray table 3 is connected to the medical chair 1 or an arm (not shown) extending from the floor, and can be manually rotated, horizontally moved, and vertically moved with respect to the medical chair 1.

  A control device 9 is provided on the bottom surface of the tray table 3. A plurality of medical instruments 4, an operation panel 8, and a monitor 6 are connected to the control device 9. The control device 9 is a control unit for driving these components.

  The medical instrument 4 includes, for example, an air turbine handpiece (high speed handpiece), a micromotor handpiece (low speed handpiece), a scaler, a three-way syringe, a vacuum syringe, a Saraje ejector (saliva), and the like. It is an instrument used for. The medical instrument 4 is not limited to these, and may be an intraoral camera, a photopolymerization irradiator, a root canal length measuring instrument, a root canal enlarger, or the like, or a non-driven instrument such as a mirror or a syringe. There may be. Moreover, as shown in FIG. 1, medical instruments such as an air turbine handpiece, a micromotor handpiece, a three-way syringe, and a vacuum syringe may be disposed on the tray table 3 or the back of the medical chair 1. It may be disposed in 1b or may be disposed in the basin unit 2.

  In the present embodiment, five types of medical instruments 4a to 4e are used. High-speed handpieces (also referred to as HS (HS1, HS2)) are used as the medical instruments 4a and 4b, and low-speed handpieces (LS (LS1, LS2)) are used as the medical instruments 4c and 4d. And a scaler (also referred to as SC) is used as the medical instrument 4e.

  Each medical instrument 4 is connected to a medical instrument drive unit 14 included in the control device 9. The medical instrument drive unit 14 drives each medical instrument 4 based on the operation of the operator received by the operation unit 12. For example, based on the control of the medical instrument drive unit 14, a cutting tool held by the head unit of HS1 or HS2 rotates and can be used for dental treatment.

  As described above, the medical instrument drive unit 14 has a function of driving the medical instrument 4 based on the operation of the operator.

  The operation panel 8 represents a display (image display) that can specify each switch that is touch-operated to perform each function. The image display is, for example, a character image or an icon image. When an operator such as a doctor touches an image displayed on the operation panel 8, the switch can be touch-operated.

  The operation panel 8 is connected to a panel control unit 13 provided in the control device 9. The panel control unit 13 represents only the image display corresponding to the function unit capable of performing the function, and when detecting the touch operation of the switch corresponding to the displayed image display, the panel control unit 13 performs the function display corresponding to the touch operated switch. , Outputs a control signal for demonstrating the function.

  As described above, the panel control unit 13 represents the image display on the operation panel 8 depending on whether or not the function can be exhibited, and has a function of causing the function unit to exhibit a function corresponding to the touch-operated switch. Alternatively, the panel control unit 13 may have a specification representing an image display on the operation panel 8 regardless of whether the function can be exhibited. In other words, the image display of all functions that may be operated on the operation panel 8 may be displayed at all times. In this specification, it is desirable that the switch of the image display does not react even when the operator touches the image display of the function in an environment where the operation cannot be performed.

  The monitor 6 is composed of a liquid crystal display or the like, and displays a predetermined image based on the control of the monitor control unit 15 provided in the control device 9. For example, based on the control of the monitor control unit 15, an image showing driving information of the medical instrument 4 being used and the medical instrument 4 being selected by touching the switch of the operation panel 8, An image showing the position of the tip of the cutting tool in FIG. 5 and an intraoral image taken by the intraoral camera can be displayed on the monitor 6.

  As described above, the monitor control unit 15 has a function of displaying a predetermined image on the screen of the monitor 6.

  The basin unit 2 is provided on the side of the medical chair 1, and includes a bowl 2a in which a drain outlet is formed, a cup table 2b on which the cup is placed, and a water tap 2c for supplying water to the cup. . The basin unit 2 is a table for the patient to gargle with water supplied to the cup from the water tap 2c. The basin unit 2 includes a basin control unit 16, and controls the flow of water used in the medical medical device 10 based on the control of the basin control unit 16.

  As described above, the basin control unit 16 has a function of controlling the flow of water used in the medical medical device 10.

  Furthermore, the basin unit 2 includes an illumination control unit 17 and controls lighting and extinguishing of the illumination device 7 based on the control of the illumination control unit 17.

  As described above, the illumination control unit 17 has a function of controlling illumination and extinguishing of the illumination device 7 (also referred to as illumination control function).

  The medical diagnostic apparatus 10 may include a configuration other than the configuration illustrated in FIG. 1 and a functional unit other than the functional unit illustrated in FIG.

  Then, with reference to FIGS. 3-5, the structure of the foot controller 5 in this Embodiment is demonstrated in detail. The foot controller 5 includes a main body 5a, a pedal 5b, switches 5c1 to 5c5, a rotating shaft 5d, a spring 5e, a driving unit 5f, a driven unit 5g, and a potentiometer 5h.

  The foot controller 5 is for operating medical devices such as the medical chair 1 and the medical device 4 by operating the pedal 5b and the switches 5c1 to 5c5 supported by the main body 5a. By operating the pedal 5b, for example, the rotational speed of the turbine of the air turbine handpiece as the medical instrument 4 can be increased or decreased.

  The pedal 5b is disposed on the upper part of the main body 5a. The switches 5c1 to 5c5 are arranged on the side part and the upper part of the main body part 5a. A rotating shaft 5d, a spring 5e, a drive unit 5f, a driven unit 5g, and a potentiometer 5h are accommodated in the main body 5a.

  The main body 5a includes a bottom 5a1 and a case 5a2. In the present embodiment, the bottom portion 5a1 is formed of a bottom plate. The bottom 5a1 constitutes the lower surface of the main body 5a. The case 5a2 is attached to the bottom 5a1.

  Case 5a2 comprises the side part and upper part of main-body part 5a. The bottom portion 5a1 has an overhang portion 5a3 provided to overhang the outside of the case 5a2. The bottom portion 5a1 and the overhang portion 5a3 may be separate or integrated, and may be anything that constitutes the bottom surface of the foot controller 5. In the overhang portion 5a3, the switches 5c1 to 5c4 are unintentionally operated when the foot controller 5 carelessly contacts the legs of the medical chair 1 or a stool (not shown) on which the operator is seated. To prevent. When the foot controller 5 is close to a surrounding object, the overhanging portion 5a3 contacts the object, and thus it is preferable that the switch 5c1 to 5c4 does not inadvertently contact with the object. Absent. A groove for preventing slipping is formed on the lower surface (installation surface) of the bottom 5a1. The groove formed in the bottom portion 5a1 is configured to reduce an undesirable situation for the operator that the installation position of the foot controller 5 changes during operation of the foot controller 5.

  The case 5a2 includes a pair of support portions 5a4 disposed at both ends in the width direction of the case 5a2 (a line direction connecting the switch 5c1 and the switch 5c3). As shown in FIG. 3, the width direction of the case 5a2 is the left-right direction. A through hole 5a5 is formed in each front end portion of the pair of support portions 5a4.

  The pedal 5b is configured to be able to be pushed down (in the direction of the installation surface of the foot controller 5) when the surgeon steps on the pedal 5b. The pedal 5b includes a tread (pedal rubber) 5b1, a pedal base 5b6, and a screw 5b12. In this embodiment, the pedal 5b is composed of a plurality of members (the tread board 5b1 and the pedal base 5b6). However, the pedal 5b is not limited to this, and is composed of a single member in a single plate shape. May be.

  The tread plate 5b1 includes a tread surface 5b2, a convex portion 5b3, and a raised portion 5b4. The tread surface 5b2 constitutes the upper surface of the tread plate 5b1. The tread surface 5b2 is located on the opposite side of the bottom portion 5a1 with respect to the main body portion 5a. The tread surface 5b2 has one end E1 and the other end E2. When viewed from the operator of the foot controller 5, one end E1 is located on the front side of the tread surface 5b2, and the other end E2 is located on the rear side of the tread surface 5b2. The tread surface 5b2 is arranged so that the distance from the bottom 5a1 increases from the one end E1 to the other end E2. That is, the tread surface 5b2 is inclined so that the height position of the other end E2 is higher than the height position of the one end E1.

  A convex portion 5b3 is provided on the tread surface 5b2. The convex portion 5b3 protrudes from the tread surface 5b2 to the side opposite to the bottom portion 5a1. When the convex portion 5b3 is viewed from a direction orthogonal to the tread surface 5b2, the convex portion 5b3 is formed in a substantially circular shape. The upper end portion of the convex portion 5b3 has a spherical surface. Since the upper end portion of the convex portion 5b3 has a spherical surface, it is easy to place the operator's foot on the convex portion 5b3. It is sufficient that at least one convex portion 5b3 is provided. The shape of the convex portion 5b3 is configured in the dome shape as described above in the present embodiment, but is not limited thereto, and formation variations such as a column shape, a prism shape, a cone shape, and a pyramid shape are conceivable. Further, the height of the convex portion 5b3 is preferably 8 mm or more and 28 mm or less, for example.

  In the present embodiment, a pair of convex portions 5b3 are provided. A pair of convex-shaped part 5b3 is arrange | positioned at the edge part by the side of the one end E1 of the tread surface 5b2. The pair of convex portions 5b3 are respectively disposed at both end portions of the tread surface 5b2 in a direction intersecting the direction in which the one end E1 and the other end E2 of the tread surface 5b2 face each other. That is, the pair of convex portions 5b3 are disposed at both ends in the width direction (left-right direction) of the foot controller 5. Therefore, it is possible to place the operator's foot on the tread surface 5b2 between the pair of convex portions 5b3. In addition, it is easy to place either the left foot or the right foot of the surgeon on the convex portion 5b3. In addition, the convex part 5b3 may be arrange | positioned only in either one of both ends in the width direction (left-right direction) of the foot controller 5. FIG.

  The raised portion 5b4 is raised from the tread surface 5b2 to the side opposite to the bottom portion 5a1. The raised portion 5b4 is disposed between the other end E2 and the convex portion 5b3 in the direction in which the one end E1 and the other end E2 of the tread surface 5b2 face each other. The raised portion 5b4 is disposed at the center of the tread surface 5b2. When the raised portion 5b4 is viewed from a direction orthogonal to the tread surface 5b2, the raised portion 5b4 is formed in a substantially elliptical shape whose longitudinal direction is the width direction (left-right direction) of the foot controller 5. The upper surface of the raised portion 5b4 has a curved surface whose height decreases from the center toward the outer edge. Since the upper surface of the raised portion 5b4 has a curved surface whose height decreases from the center toward the outer edge, it is easy to step on the raised portion 5b4 with the foot of the operator. The height of the raised portion 5b4 is lower than the height of the convex portion 5b3. For this reason, when the operator's foot is placed on the convex portion 5b3, it is possible to easily prevent the raised portion 5b4 from being stepped on unintentionally. The configuration in which the height of the raised portion 5b4 is lower than the height of the convex portion 5b3 is a design matter and is not essential for the present invention. Even if the height of the raised portion is higher than the height of the convex portion, the effect of resting the operator's foot by the convex portion 5b3 of the present invention can be exhibited. Further, the height of the raised portion 5b4 is preferably 5 mm or more and 48 mm or less, for example. In the case where the height of the raised portion 5b4 is lower than the height of the convex portion 5b3, the difference between the height of the convex portion 5b3 and the height of the raised portion 5b4 (the height of the convex portion 5b3 minus the height of the raised portion 5b4). ) Is preferably 3 mm or less, for example. On the other hand, when the height of the raised portion 5b4 is higher than the height of the convex portion 5b3, the difference between the height of the raised portion 5b4 and the height of the convex portion 5b3 (the height of the raised portion 5b4 minus the height of the convex portion 5b3). For example, the height is preferably 20 mm or less.

  A pair of screw holes 5b5 are formed in the lower surface of the tread plate 5b1. The pair of screw holes 5b5 are arranged on the surface opposite to the surface on which the raised portions 5b4 are provided with respect to the tread surface 5b2.

  A pair of springs 5e is disposed below the tread board 5b1 (the lower surface of a pedal base 5b6 described later). The spring 5e is configured to urge the tread 5b1 in a direction from the lower surface to the upper surface of the tread 5b1. Specifically, the spring 5e biases the pedal 5b against the main body 5a so that the distance from the other end E2 of the tread surface 5b2 to the bottom 5a1 becomes long.

  The pedal base 5b6 includes a top plate 5b7, a pair of side plates 5b9, and a shaft 5b11. The top plate 5b7 is configured along the lower surface of the tread plate 5b1. A pair of through holes 5b8 is formed in the center of the top plate 5b7. Each of the pair of screws 5b12 is screwed into the pair of screw holes 5b5 in a state of being inserted into the pair of through holes 5b8. Thereby, the tread board 5b1 and the pedal base 5b6 are fixed to each other. The fixing method of the tread board and the pedal base is not limited to the screwing as in the embodiment. For example, the tread board using a stretchable material is covered on the pedal base or is fitted, or at least in use. Any method can be used as long as it can be used integrally without separation.

  A pair of side plates 5b9 are connected to both ends of the top plate 5b7 in the width direction (left-right direction). The pair of side plates 5b9 protrudes from the top plate 5b7 in the front-rear direction orthogonal to the width direction of the top plate 5b7. A through hole 5b10 is formed in each front end portion of the pair of side plates 5b9.

  The pair of side plates 5b9 are arranged so as to sandwich the outer surfaces of the pair of support portions 5a4. The through holes 5b5 of the pair of support portions 5a4 communicate with the through holes 5b10 of the pair of side plates 5b9 to form a pair of through holes (not shown). A rotating shaft 5d is rotatably inserted into each through hole 5b10 of the pair of side plates 5b9 and each through hole 5a5 of the pair of support portions 5a4. The rotating shaft 5d has a cylindrical shape. The axis of the rotating shaft 5d is arranged in a direction that intersects the direction in which the one end E1 and the other end E2 of the tread surface 5b2 face each other. When the pedal base 5b6 rotates around the rotation shaft 5d, the tread 5b1 fixed to the pedal base 5b6 can rotate. Thus, the rotating shaft 5d supports the pedal 5b so as to be rotatable with respect to the main body 5a.

  Specifically, the rotating shaft 5d rotatably supports the pedal 5b with respect to the main body 5a so that the distance from the other end E2 of the tread surface 5b2 to the bottom 5a1 is variable. That is, the rotating shaft 5d can rotate the pedal 5b so that the distance from the other end E2 of the tread surface 5b2 to the bottom 5a1 can be changed. More specifically, the rotating shaft 5d can rotate the pedal 5b so that the distance from the other end E2 of the tread surface 5b2 to the bottom portion 5a1 is shortened, and from the other end E2 of the tread surface 5b2 to the bottom portion 5a1. It is possible to rotate the pedal 5b so that the distance becomes longer.

  The convex portion 5b3 is disposed so as to overlap the rotation shaft 5d in a direction orthogonal to the tread surface 5b2. In addition, the convex part 5b3 should just be arrange | positioned so that it may overlap with at least one part of the rotating shaft 5d in the direction orthogonal to the tread surface 5b2. The convex portion 5b3 may be disposed so as to overlap the rotation shaft 5d in the vertical direction when the foot controller 5 is placed on a horizontal plane.

  A recess 5a6 is formed at the rear end of the support 5a4 of the case 5a2. The recess 5a6 passes through the support portion 5a4 and opens upward. A shaft 5b11 is attached to the rear end of one of the pair of side plates 5b9 of the pedal base 5b6.

  The drive unit 5f includes one surface 5f1, the other surface 5f2, a shaft 5f3, and a drive gear 5f4. One surface 5f1 is located on the opposite side to the other surface 5f2. The shaft 5f3 is disposed at the front end of the drive unit 5f. The shaft 5f3 is disposed on the one surface 5f1. The shaft 5f3 protrudes from the one surface 5f1 to the side opposite to the other surface 5f2.

  The drive gear 5f4 is disposed at the rear end of the drive unit 5f. The drive gear 5f4 is disposed on the other surface 5f2. The drive gear 5f4 extends in the vertical direction along the other surface 5f2. Each tooth of the drive gear 5f4 protrudes from the rear side (the other end E2 side) to the front side (the one end E1 side).

  A through hole 5f5 is formed at the rear end portion of the drive portion 5f. The through hole 5f5 is arranged on the upper part of the drive unit 5f. The through hole 5f5 penetrates the one surface 5f1 and the other surface 5f2. The through hole 5f5 is formed in a substantially elliptical shape.

  A shaft 5f3 of the drive unit 5f is rotatably inserted into a recess 5a6 formed in one support portion 5a4. A shaft 5b11 of the pedal base 5b6 is slidably inserted into a through hole 5f5 formed in the drive unit 5f. That is, the drive unit 5f is disposed between the pair of side plates 5b9 of the pedal base 5b6.

  In addition, the case 5a2 includes a housing portion 5a7. A through hole 5a8 is formed on the side surface of the housing portion 5a7 that faces the drive portion 5f. A follower 5g and a potentiometer 5h are attached to the through hole 5a8. The driven portion 5g includes a driven gear 5g1 and a bearing 5g2. The driven gear 5g1 is slidably attached to the bearing 5g2. The driven gear 5g1 is configured to mesh with the drive gear 5f4. A potentiometer 5h is connected to the driven gear 5g1.

  As the pedal 5b rotates about the rotation shaft 5d, the drive unit 5f rotates about the shaft 5f3. Thereby, the drive gear 5f4 of the drive part 5f meshes with the driven gear 5g1 and rotates.

  When the driven gear 5g1 rotates, the rotation angle of the driven gear 5g1 is detected by the potentiometer 5h, and an electric signal is sent to the control device 9. The operation amount of the pedal 5b is detected by the control device 9, and the medical device such as the medical device 4 is controlled according to the operation amount of the pedal 5b.

  Next, how the foot controller 5 in this Embodiment is operated with reference to FIGS. 6-8 is demonstrated. 6 to 8 show how the operator operates the foot controller 5 with the left foot.

  In FIG. 6, the operator's left foot is placed on the convex portion 5b3 of the pedal 5b. In this state, the pedal 5b is not depressed by the left foot of the surgeon. Therefore, the medical device is not operated. The surgeon rests the left foot while resting the left foot on the pedal 5b (rest state). The rest state is a state in which the operation of the medical device is not performed when the operator's foot is placed on the pedal 5b or when the operator steps on the pedal 5b with the foot. That is, in the rest state, it is possible not to operate the medical device when the pedal 5b is slightly depressed.

  As shown in FIG. 7, in the rest state, the pedal 5b is biased toward the upper side of the pedal 5b on the side opposite to the bottom 5a1 by the elastic force of the spring 5e. The force point / action point of the spring 5e is located on the lower surface of the tread 5b1 with which the spring 5e contacts. A force F1 due to the elastic force of the spring 5e acts on the force point / action point of the spring 5e in a direction from the lower surface to the upper surface of the tread plate 5b1.

  Further, when resting, a force F2 acts on the convex portion 5b3 by the left foot of the surgeon. The power point / action point at rest is located on the convex portion 5b3. A force F2 due to the left foot of the surgeon acts in the direction from the upper surface to the lower surface of the tread 5b1 at the power point / action point at the time of rest.

  When resting, the first moment around the rotation axis 5d due to the elastic force (force F1) of the spring 5e is greater than the second moment around the rotation axis 5d due to the force (force F2) acting on the convex portion 5b3 by the operator's left foot. Also grows. The first moment is obtained by multiplying the elastic force (force F1) of the spring 5e by a distance L1 from the spring 5e to the rotating shaft 5d in the direction in which the one end E1 and the other end E2 of the tread surface 5b2 face each other. The second moment is obtained by multiplying the force (force F2) acting on the convex portion 5b3 by the distance L2 from the convex portion 5b3 to the rotating shaft 5d in the direction in which the one end E1 and the other end E2 of the tread surface 5b2 face each other. It is.

  When the pedal 5b is depressed, a force F3 is applied to the tread surface 5b2 by the left foot of the surgeon. In FIG. 7, the power point / action point when the pedal 5b is depressed is located on the raised portion 5b4. A force F3 by the operator's left foot acts on the force point / action point when the pedal 5b is depressed in a direction from the upper surface to the lower surface of the tread plate 5b1.

  When the pedal 5b is depressed, the first moment around the rotating shaft 5d due to the elastic force (force F1) of the spring 5e is the third moment around the rotating shaft 5d due to the force (force F3) acting on the raised portion 5b4 by the left foot of the surgeon. It becomes smaller than the moment. The third moment is obtained by multiplying a force (force F3) acting on the raised portion 5b4 by a distance L3 from the raised portion 5b4 to the rotating shaft 5d in the direction in which the one end E1 and the other end E2 of the tread surface 5b2 face each other. .

  A state when the pedal 5b is depressed will be described with reference to FIG. When the pedal 5b is depressed, the first moment around the rotating shaft 5d due to the elastic force (force F1) of the spring 5e is the third moment around the rotating shaft 5d due to the force (force F3) acting on the raised portion 5b4 by the left foot of the surgeon. Since it becomes smaller than the moment, the pedal 5b rotates toward the bottom 5a1 around the rotation shaft 5d.

Next, the effect of this Embodiment is demonstrated.
According to the foot controller 5 of the present embodiment, the convex portion 5b3 of the pedal 5b is arranged so as to overlap the rotation shaft 5d in the direction orthogonal to the tread surface 5b2, and thus the operator's foot is placed on the convex portion 5b3. When placed, the rotation of the pedal 5b can be suppressed. Therefore, it is possible to suppress the pedal 5b from being depressed when the operator's foot is placed on the convex portion 5b3. Thereby, the operator's foot can be rested in a state where the operator's foot is placed on the pedal 5b. Therefore, even in the case of medical treatment over a long period of time, the operator's fatigue can be reduced as compared with the use of a conventional foot controller. Further, with this configuration, the pedal 5b can be operated in a state where a part of the operator's foot is placed on the convex portion 5b3. Therefore, when the surgeon wants to obtain a rest state, it is possible to rest without removing the foot from the foot controller 5, so that the surgeon moves the foot greatly to secure the rest position. Can be resolved. The convex portion 5b3 supports a part of the operator's foot, thereby improving the stability of the operator's foot for operating the pedal 5b, facilitating the operation of the operator, and facilitating fine adjustment of the amount of operation of the pedal 5b. Become. Therefore, the present invention is a desirable configuration in medical treatment using a medical instrument 4 that requires fine adjustment of pedal operation during driving, such as a dental micromotor.

  The pair of convex portions 5b3 are respectively disposed at both end portions of the tread surface 5b2 in a direction intersecting the direction in which the one end E1 and the other end E2 of the tread surface 5b2 face each other. Therefore, when the surgeon puts a heel on the installation surface (floor) of the foot controller 5 and steps on the pedal 5b, the surgeon's foot is placed on the convex portion 5b3 to the tread surface 5b2 between the pair of convex portions 5b3. The pedal 5b can be stepped on with the foot of the operator placed on the tread surface 5b2 without hindering the smooth access. The operator's foot for operating the foot controller 5 may be either the left or right foot depending on the operator's dominant foot. This embodiment is preferable because it is easy to rest when operated with any foot. In the present embodiment, a pair of convex portions 5b3 is provided, but not limited to this, either on the left or right according to the foot operated by the operator, or in the center near one end E1, The structure which provides a convex part may be sufficient.

  Further, according to the foot controller 5 of the present embodiment, the first force obtained by multiplying the elastic force of the spring 5e by the distance L1 from the spring 5e to the rotating shaft 5d in the direction in which the one end E1 and the other end E2 of the tread surface 5b2 face each other. One moment is obtained by multiplying the force acting on the convex portion 5b3 by the operator's left foot by a distance L2 from the convex portion 5b3 to the rotation shaft 5d in the direction in which the one end E1 and the other end E2 of the tread surface 5b face each other. Greater than 2 moments. Therefore, it is possible to suppress the pedal 5b from being depressed when the operator's foot is placed on the convex portion 5b3. Thereby, the operator's foot can be rested in a state where the operator's foot is placed on the pedal 5b. Therefore, even in the case of medical treatment over a long period of time, the operator's fatigue can be reduced as compared with the use of a conventional foot controller. Further, with this configuration, the pedal 5b can be operated in a state where a part of the operator's foot is placed on the convex portion 5b3. Therefore, when the surgeon wants to obtain a rest state, it is possible to rest without removing the foot from the foot controller 5, so that the surgeon moves the foot greatly to secure the rest position. Can be resolved. The convex portion 5b3 supports a part of the operator's foot, thereby improving the stability of the operator's foot for operating the pedal 5b, facilitating the operation of the operator, and facilitating fine adjustment of the amount of operation of the pedal 5b. Become. Therefore, the present invention is a desirable configuration in medical treatment using a medical instrument 4 that requires fine adjustment of pedal operation during driving, such as a dental micromotor.

  Moreover, according to the foot controller 5 of this Embodiment, the pedal 5b may be comprised by one plate shape. Thereby, the structure of the pedal 5b becomes simple.

  Further, according to the foot controller 5 of the present embodiment, the raised portion 5b4 of the pedal 5b is raised from the tread surface 5b2 to the side opposite to the bottom portion 5a1, and the one end E1 and the other end E2 of the tread surface 5b2 are opposed to each other. It arrange | positions between the other end E2 and the convex-shaped part 5b3. For this reason, when the surgeon puts his heel on the ground and steps on the pedal 5b, the raised portion 5b4 can assist the stepping and facilitate the operation. Therefore, since the pedal 5b can be depressed with a smaller force than when the tread 5b2 is depressed by depressing the raised portion 5b4, the depressing operation can be performed easily.

  A medical medical device according to the present embodiment includes the above-described foot controller 5 and a medical device controlled by the foot controller 5. Thereby, the medical treatment apparatus provided with the foot controller 5 which can rest an operator's foot in the state in which the operator's foot was put on the pedal 5b can be provided.

  Next, a modification of the foot controller 5 in the present embodiment will be described with reference to FIG. Note that the modification of the foot controller 5 in the present embodiment has the same configuration as that of the present embodiment, unless otherwise specified, and the same components are denoted by the same reference numerals and the description thereof will not be repeated. .

  In a modification of the foot controller 5 in the present embodiment, the pedal 5b includes a first pedal portion 5ba and a second pedal portion 5bb. The first pedal portion 5ba and the second pedal portion 5bb are arranged side by side in a direction intersecting the direction in which one end E1 and the other end E2 of the tread surface 5b2 face each other. Moreover, the main-body part 5a is provided with the partition plate 5a10. The partition plate 5a10 is disposed between the first pedal portion 5ba and the second pedal portion 5bb.

  Moreover, according to the modification of the foot controller 5 of the present embodiment, the pedal 5b includes the first pedal portion 5ba and the second pedal portion 5bb. For this reason, different operations can be performed by the first pedal portion 5ba and the second pedal portion 5bb. For example, a micro motor handpiece (low speed handpiece LS) is operated with the first pedal portion 5ba, and an air turbine handpiece (high speed handpiece HS) is operated with the second pedal portion 5bb. Can do.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Medical chair, 2 Basin unit, 3 Tray table, 4 Medical instrument, 5 Foot controller, 5a Main body part, 5a1 Bottom part, 5a2 Case, 5b Pedal, 5b1 Tread board, 5b2 Tread surface, 5b3 Convex part, 5b4 Raised part, 5ba 1st 1 pedal part, 5bb 2nd pedal part, 5c1-5c5 switch, 5d rotary shaft, 5e spring, 5f drive part, 5g driven part, 5h potentiometer, 6 monitor, 7 illumination device, 8 operation panel, 9 control device, 10 medical Medical device for medical use, 11 sheet drive unit, 12 operation unit, 13 panel control unit, 14 medical instrument drive unit, 15 monitor control unit, 16 basin control unit, 17 illumination control unit, E1 one end, E2 other end.

Claims (6)

A main body having a bottom,
A tread that is located on the opposite side of the bottom with respect to the main body and that has one end and the other end, and is arranged so that the distance from the bottom increases from the one end toward the other end. A pedal having a convex portion protruding from the tread surface to the opposite side of the bottom portion;
A rotation shaft that rotatably supports the pedal with respect to the main body so that a distance from the other end to the bottom is variable;
The said convex-shaped part is a foot controller arrange | positioned so that it may overlap with the said rotating shaft in the direction orthogonal to the said tread surface. A main body having a bottom,
A tread that is located on the opposite side of the bottom with respect to the main body and that has one end and the other end, and is arranged so that the distance from the bottom increases from the one end toward the other end. A pedal having a convex portion protruding from the tread surface to the opposite side of the bottom portion;
A spring for urging the pedal against the main body so that a distance from the other end to the bottom is increased;
A rotation shaft that rotatably supports the pedal with respect to the main body so that a distance from the other end to the bottom is variable;
The first moment obtained by multiplying the elastic force of the spring by the distance from the spring to the rotating shaft in the direction in which the one end and the other end face each other is the force acting on the convex portion. A foot controller that is larger than a second moment multiplied by a distance from the convex portion to the rotation axis in a direction facing the other end.   The foot controller according to claim 1, wherein the pedal is configured as a single plate. The pedal includes a first pedal portion and a second pedal portion,
The foot controller according to claim 1 or 2, wherein the first pedal portion and the second pedal portion are arranged side by side in a direction intersecting a direction in which the one end and the other end face each other. The pedal includes a raised portion raised from the tread surface to the opposite side of the bottom portion,
The foot according to any one of claims 1 to 4, wherein the raised portion is disposed between the other end and the convex portion in a direction in which the one end and the other end face each other. controller. The foot controller according to any one of claims 1 to 5,
A medical medical device comprising a medical device controlled by the foot controller.

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