EP3520128A1 - Pédale pour commander un dispositif à usage médical - Google Patents

Pédale pour commander un dispositif à usage médical

Info

Publication number
EP3520128A1
EP3520128A1 EP17777190.4A EP17777190A EP3520128A1 EP 3520128 A1 EP3520128 A1 EP 3520128A1 EP 17777190 A EP17777190 A EP 17777190A EP 3520128 A1 EP3520128 A1 EP 3520128A1
Authority
EP
European Patent Office
Prior art keywords
cover element
foot pedal
switch
height
actuating device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17777190.4A
Other languages
German (de)
English (en)
Other versions
EP3520128B1 (fr
Inventor
Etienne Lebreton
Florent Jean-Claude Georges Beani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferton Holding SA
Original Assignee
Ferton Holding SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferton Holding SA filed Critical Ferton Holding SA
Publication of EP3520128A1 publication Critical patent/EP3520128A1/fr
Application granted granted Critical
Publication of EP3520128B1 publication Critical patent/EP3520128B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/26—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H01H13/16—Operating parts, e.g. push-button adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/64—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/01—Off centre actuation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/044—Elastic part on actuator or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/08—Actuators composed of different parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/032—Operating force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/03—Avoiding erroneous switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/003—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with more than one electrically distinguishable condition in one or both positions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/024—Avoid unwanted operation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot

Definitions

  • Foot pedal for controlling a medical device
  • the present invention relates to a foot pedal for controlling a medical device, in particular a dental device.
  • foot pedals are well known in the art, for example from US Pat. No. 7,439,462, and are intended to provide a treating physician with a margin of maneuver during treatment that allows him to continue the treatment without interrupting it for manual modifications to the medical device , Instead of interrupting the treatment, he makes modifications to the medical device using the foot pedal.
  • Essential components of the foot pedal are a housing with a housing bottom and a cover element, which is mounted vertically displaceable relative to the housing bottom along an actuating device and usually tilted or tilted.
  • the cover element is typically located on an actuating device arranged centrally below the cover element and displaceable along the actuation direction, so that the cover element can be tilted in addition to each side (cf DE 20 2006 015 718 U1).
  • the actuating device serves as a fulcrum or lever surface.
  • the actuating device is mounted vertically displaceable, with a height offset of the actuating device both when occurring on the edge region as well occurs when occurring on the central area.
  • the height offset of the actuating device when it occurs on the edge region is thereby assisted in that, during tilting, the movement of the cover element on the side opposite the actuated edge region is limited upwards, ie in a direction opposite to the direction of actuation.
  • a force acting on the edge region leads to a smaller height offset of the actuating device than a central force acting on the cover element, in particular directly above the actuating device, which is generally located in the central region. Accordingly, a differentiation can be determined based on the respective size of the height offset. Therefore, in US Pat. No. 7,439,462, a first switch for initiating a first functionality on the medical device and a second switch for initiating a second functionality on the medical device are configured such that the first switch in a first height offset portion and the second switch in a first adjoining the second height offset section adjoining the first height offset section can be successively actuated by the actuating device moving in the actuating direction.
  • a foot pedal for controlling a medical device in which the likelihood of accidentally causing the second functionality as compared to the prior art can be reduced.
  • a foot pedal according to claim 1 Further advantages and features of the invention will become apparent from the subclaims and the description and the accompanying figures. According to the invention, a foot pedal is provided for controlling a medical device, in particular a dental device
  • a cover element which is height-displaceable relative to the housing base along an actuating direction and which is tiltably mounted relative to the housing base
  • a first switch for initiating a first functionality on the medical device and a second switch for initiating a second functionality on the medical device and
  • a height-displaceable actuating device along the actuating direction, which actuates the first switch in a movement in the direction of actuation within a first height offset section and actuates the second switch within a second height offset section
  • the actuating device is configured such that in the first height offset section in a first state, z. B. a telescoped state, and in the secondnecknversatzabêt in a second state, for. B. is a collapsed state
  • the foot pedal is configured such that at a predeterminable inclination angle of the lid member, the actuator is always within the first state, i. is disposed within the first height offset portion.
  • the predeterminable angle of inclination is the maximum possible angle of inclination of the cover element, which is on at least partially resting the cover element on the housing base and on the opposite side by abutment of the cover element on at least one radial projection of the housing , which protrudes radially outward and prevents lifting of the lid member upwards, is defined.
  • the predeterminable angle of inclination is, however, as a rule an angular range which lies between a first angle and the maximum possible angle, e.g. between 5 ° and 15 °, preferably between 6 ° and about 10 °.
  • the actuation of the second switch is made more difficult by the fact that on the one hand Actuator must be transferred to the second state before it can get into the secondCN.
  • the foot pedal is configured or dimensioned such that the actuator remains exclusively within the firstvolnversatzabitess when the lid member has assumed a maximum possible inclination angle ,
  • the latter takes the actuator the ability to ever cause a transition to the second state, so as to get into the secondCNnversatzabterrorism when the lid member has taken a maximum possible angle of inclination.
  • This advantageously reduces the probability of an accidental triggering of the second functionality, in particular if a user acts with his foot on the edge region of the cover element.
  • the foot pedal is in particular designed such that the lid element can not be displaced further along the actuation direction when assuming the maximum possible angle of inclination determined by the design of the foot pedal.
  • the actuating device is in particular designed such that an additional force is required for a transition from the first state to the second state. For example, this is to overcompensate a restoring force of a spring whose restoring force does not counteract in the first height offset portion of a movement of the actuator.
  • the cover element rests on the actuating device in the central region of the cover element, so that the cover element can be tilted to either side.
  • the cover element and / or the housing to be complete in relation to an axis of symmetry running parallel to the actuating device
  • the cover element rests in sections on the housing bottom when taking the maximum possible angle of inclination.
  • the maximally inclined cover element can be lowered further, thereby entraining the actuating device in such a way that the Actuator is transferred to the secondnotenversatzabites.
  • the foot pedal can assume exactly one position in each possible tilting direction in which the angle of inclination becomes maximum.
  • the housing base has a lid facing the peripheral shoulder on which abuts the inclined lid member when taking the pre-definable, for example, the maximum angle of inclination.
  • the cover element in the edge region or on the outer circumference has a limited offset height, which determines the predeterminable, for example, the maximum angle of inclination.
  • the maximum angle of inclination is determined by a diameter of the foot pedal.
  • the foot pedal or the lid member has a diameter between 13 cm and 25 cm.
  • the offset height in the axial direction is limited, for example, in that a collar directed radially inwardly on the underside of the cover element engages in a radially outwardly open receiving region of the housing.
  • This receiving area is preferably limited in a direction parallel to the direction of actuation direction to one side by radially projecting from a housing wall projections and the other side by the housing bottom, in particular the peripheral shoulder of the housing bottom.
  • the maximum inclined lid member then abuts on one side of at least one of the projections and on the other side in sections on the housing bottom.
  • a height offset of the actuating device caused by the assumption of the predeterminable, for example, the maximum inclination position is smaller than an extension of the first vertical offset section.
  • the actuating device remains within the first height offset rod section when the cover element assumes its predeterminable, for example, the maximum angle of inclination and thereby carries the actuating device.
  • the first height offset section is measured starting from an initial position which assumes the cover element when no external force acts on the cover element.
  • the actuating device is disposed adjacent to the second height offset portion when taking the maximum possible angle of inclination of the lid member.
  • the cover element is in this case on the housing bottom in sections at an investment point and would have to be further pivoted for a further height offset of the actuator to this investment point.
  • the cover element acts as around the contact point (on the housing bottom) pivotable lever arm, on whose side remote from the investment point or in the middle of the actuator is arranged, wherein the actuating means a continuation of the pivoting movement with a force for the transfer of first in the second state is required counteracts.
  • the user In order to reduce the effort required to continue the pivoting movement, the user must extend the operating length of the lever arm pivotable about the abutment point by advancing the foot further toward the center.
  • the offset height in the edge region and an extension of the first height offset section are configured such that their size ratio restricts the arrangement of the actuating device when taking the maximum possible angle of inclination of the cover element to the first height offset section.
  • the extent of the first height offset section is preferably designed as a function of the offset height. This prevents the actuator from being moved to the second height set section reaches when the lid member is maximally inclined.
  • the ratio of the offset height to the extension of the first height offset section is between 0.8 and 1, preferably between 0.9 and 1 and particularly preferably between 0.95 and 1.
  • a projection is provided on the housing bottom.
  • the projection is designed such that it comes to the transfer of the actuator from the first to the second state with a bottom of the actuator in abutment.
  • an extent of the first height offset section can be defined in an uncomplicated way by adjusting the height of the projection accordingly.
  • the material from which the projection is made differs from the material from which the remainder of the case bottom is made.
  • the projection of a loadable material such. B. a metal or a fiber-reinforced plastic. This will be in
  • the actuating device is connected to the housing base via a first spring, the actuating device having a first element and a second element, wherein a second spring is arranged between the first element and the second element, wherein the actuating device is configured such that during the movement of the actuating device in the first height offset section the first spring is elastically deformed and in the second height offset section the second spring is elastically deformed.
  • the first spring advantageously ensures that the actuating device and the cover element are returned to a starting position when no forces act on the cover element.
  • the second spring can be adjusted in particular a necessary applied force required for the transition of the actuator from the first state to the second state.
  • the second element is longitudinally movably mounted in the first element.
  • the first element and the second element in this case are sleeve-shaped or cup-shaped and slipped inside each other.
  • a spring force of the second spring is more than twice, preferably more than three times and particularly preferably substantially five times as large as the spring force of the first spring.
  • the first switch and the second switch are mutually offset in height. This advantageously dispenses with a complicated actuating mechanism which would otherwise be required if the first switch and the second switch were arranged at the same height in the direction of actuation.
  • the actuator moves in a gap between the first switch and the second switch, which are opposed to each other, for example.
  • the housing is designed as an insert in the form of a housing body, which is connected to the housing bottom.
  • the housing bottom is thereby bonded to the housing via a magnetic release mechanism.
  • the housing bottom comprises a magnet which cooperates with a magnetic part of the housing or of the housing base body.
  • the magnetic release mechanism is arranged below the actuating device. In particular, a projection against which the actuating device comes into contact with the movement along the actuating direction, the magnetic part of the housing, which holds the housing bottom with the magnet in the assembled state.
  • the magnetic release mechanism allows an uncomplicated release of the housing bottom of the housing.
  • the magnetic release mechanism provided that it, as shown in the figures, is mounted centrally on the housing bottom, allows a rotational movement of the housing base body and of the cover element connected thereto around the housing bottom, which is usually adhesively connected to the floor.
  • the opposing surfaces of the magnet and the magnetic part of the housing such as the
  • Projection mounted so that a rotating movement is made possible. Preference is given to smooth surfaces which slide on one another.
  • the housing is designed on its side facing the housing bottom such that a compartment for energy storage cells is freely accessible when the housing bottom is separated from the housing.
  • the magnetic release mechanism it is possible to simplify a change of the energy storage cells which is regularly required for the supply of the transmitting device in the housing.
  • FIG. 1 shows a schematic exploded view of a foot pedal according to a preferred embodiment of the present invention
  • FIGS. 2a to 2d show sectional views of the foot pedal from FIG. 1 in different operating states.
  • the foot pedal 1 shows a schematic exploded view of a foot pedal 1 according to a preferred embodiment of the present invention.
  • the foot pedal 1 is one which is for controlling a medical device, preferably a dental device, is provided.
  • a medical device preferably a dental device
  • adjustments to the medical device should be made by means of the foot pedal 1, so that the user does not have to interrupt his work, for example a treatment measure on the patient, in order to operate the medical device manually.
  • FIG. 1 An essential part of the embodiment shown in Figure 1, in addition to a housing 20 with a housing bottom 22 and a cover member 10 which is height-displaceable relative to the housing bottom 22 along an actuating direction B and opposite the housing bottom 22 is mounted tilted.
  • the cover element 10 rests centrally on an actuating device 15.
  • the lid member 10 can tilt or tilt to all sides and by the contact between the cover member 10 and the actuator 15, the actuator 15 is moved in the direction of actuation B, when a force, in particular with the foot , on the lid member 10, in particular substantially vertically takes place.
  • a height offset of the actuating device in the direction of actuation B can take place both when it occurs on the edge region and when it occurs on the central region.
  • the invention means a displacement of the actuator 15 along the direction of actuation B, which is directed generally vertically from above in the direction of the floor.
  • a first spring 31 is provided, which is connected on one side to the housing bottom 22 and on the other side to the actuating device 15, in particular to a first element 51 of the actuating device 15.
  • a height offset of the actuating device 15, which is caused by an occurrence with the foot on the cover element 10, differs. If, for example, a force acts on an edge of the cover element 10, the cover element 10 is tilted about a lever point provided by the actuating device 15 or a lever surface provided by the actuating device 15. In addition to the slope, a height offset of the height- slidably mounted actuator 15 causes. The height offset of the actuating device when it occurs on the edge region is thereby supported by the fact that tilting the movement of the lid member on the side opposite the actuated edge region side up, ie in a direction opposite to the direction of actuation is limited.
  • this height offset caused by tilting is smaller than that caused by a force of the same magnitude when the force above the actuator 15 and parallel to the direction of actuation B, i. rather, it acts on the cover element 10 in the central middle region of the cover element 10. Accordingly, the different height offsets can be used for targeted differentiation between two types of operation of the foot pedal 1, whereby the different types of actuation different functionalities can be assigned.
  • a first functionality and an occurrence on a central region of the cover element can be assigned a second functionality to an occurrence on an edge region and the tilting of the cover element 10 caused thereby.
  • a reference plane E is defined by the lower edge of the lid member 10 and in the unloaded state is substantially parallel to the plane of the floor.
  • the predeterminable inclination angle ⁇ is the angle between this reference plane E and the plane defined by the lower edge of the cover element 10 and set when the cover element is tilted (see Fig. 2c).
  • FIGS. 2a to 2d show sectional views of the foot pedal from FIG. 1 in different operating states.
  • FIG. 2 a shows the starting position in which the cover element 10 is located when no external force acts on the cover element 10.
  • a foot switch 41 and a second switch 42 are provided, which are arranged offset in height relative to one another in the housing, wherein the first switch 41 within a first height offset section and the second switch 42 within a second in a movement of the actuator 15 in the direction of actuation B Height offset portion is actuated.
  • the second height offset section viewed in the direction of actuation B, adjoins directly to the first height offset section.
  • FIGS. 2 b and 2 c show the cover element 10 in the first state, once without tilt or inclination (FIG. 2 b) and a different state (FIG.
  • the actuator is always within the first height offset portion in both alternatives.
  • the actuation of the first switch 41 and of the second switch 42 takes place, for example, via pins 33 which are displaceable perpendicular to the direction of actuation B and by means of spring elements (not shown) against an outer side 17 of the actuating device 15, in particular against an outer side 17 of a first element 51 of the actuating device 15. are biased.
  • the outer side 17 of the actuating device 15 has a stepped outer contour, for example in the form of a projection or a ramp on.
  • this outer contour interacts with the displaceable pins 33 so that the pins 33 move away to the side, ie along a direction perpendicular to the direction of actuation B and against a restoring force of the spring elements so that the pins 33 can actuate the first switch 41 and second switch 42, respectively.
  • the first switch 41 and the second switch 42 are arranged offset in height to each other, the first switch 41 and the second switch 42 by a running in the direction of actuation B movement of the actuator 15 successively, in particular depending on the respective height offset of the actuator 15, are switched.
  • a transmitting device 40 and a control device can be the current state of the foot pedal. 1 communicate to the medical device.
  • the control device is preferably designed such that upon actuation of the second switch 42 immediately after the actuation of the first switch 41, the second functionality is not caused. In this way, it is additionally possible to prevent the second functionality from being triggered when it is unintentionally occurring on the central area of the actuating device, although no triggering or only triggering of the first functionality by the user is intended.
  • this function may also be omitted, i. the second functionality is always activated as soon as the second switch 42 has been activated, independently of a certain period of time between the activation of the first and second switches 41 and 42.
  • the two switches are activated in the case of an activation triggered immediately after one another 41, 42 causes no functionality at all.
  • the second functionality would be inadvertently and unintentionally triggered.
  • the actuating device 15 is designed such that an entry required for actuating the second switch 42 into the second high offset region can only be performed by the actuating device 15 when the actuating device 15 is transferred from a first state to a second state. It is provided in particular that the transfer of the actuating device 15 is bound from the first state to the second state to an additional force. Ie. To convert the actuator to the second state requires additional effort to be applied first to effect the transition from the first height offset portion to the second height offset portion.
  • a second spring 32 between a first element 51 and a second element 52 of the Betuschistsseinrich- tion 15 arranged.
  • the first element 51 and the second element 52 of the actuator 15 are slidably mounted to each other, being held in the first state by the relaxed second spring 32 from each other at a distance.
  • the actuating device 15 is in the first height offset section in a telescoping state.
  • a force overcompensating the restoring force of the second spring 23 must be applied, which pushes together the first element 51 and the second element 52.
  • the actuator 15 is shown in the second state. Only when the first element 51 and the second element 52 are pushed together can a transition from the first height offset section into the second height offset section be effected for the actuating device 15.
  • the foot pedal 1 is configured such that the actuating device 15 is always arranged within the first height offset portion when the lid member 10 assumes the maximum possible angle of inclination ⁇ in a tilted state. Ie.
  • the actuator 15 is taken in taking the pre-definable, for example, the maximum angle of inclination ⁇ of the lid member the possibility to be transferred from the first state to the second state.
  • the maximum possible inclination angle ⁇ is determined by a limited offset height V in the edge region of the cover element 10.
  • this offset height V is limited by the fact that a collar directed radially inward on the underside of the cover element 10, on the cover element 10
  • the collar lies on one side, e.g. on the housing bottom 22, and on an opposite side to one of the radial projections 21 at.
  • the actuating device 15 is designed in such a way that the vertical offset is insufficient to assume a position in which an additional force is in effect the edge region of the lid member 10 is a transfer to the second state is possible. It is provided in particular that the actuating device 15 is configured such that a height offset, which is associated with the orientation of the lid member 10 in the position with the predeterminable, for example, the maximum angle of inclination is less than or equal to the first height offset portion.
  • the extent of the first height offset portion is dimensioned by a dimensioned in the direction of actuation B distance between the second member 52 and a lower of the second member 52 arranged projection 16 of the housing bottom 22.
  • the projection 16 serves in particular for supporting the second element 52 during the pushing together of the first element 51 and the second element 52, d. H. in the transfer of the actuator 15 from the first state to the second state. In other words, without coming into contact with the projection 16, the actuator 15 can not be transferred to the second state and the actuator 15 remains within the first leveragenversatzabites and thus can not operate the second switch 42.
  • the projection 16, in particular the distance to be determined in a starting position between the projection 16 and the second element 52 determines the extension of the first height offset section.
  • no further lowering of the actuating device 15 in the direction of actuation B while maintaining the angle of inclination is conceivable if the cover element 10 is inserted in the direction of actuation. would take the pre-definable, for example, the maximum inclination angle ⁇ on the housing bottom 22 is applied.
  • the actuating device with the second element 52 abuts the projection 16 when the cover element 10 is maximally inclined.
  • the housing 20 is designed as an insert in the form of a housing base body which is connected to the housing bottom 22 and which has the radial projections 21.
  • the housing bottom 22 is preferably bonded to the housing 20 via a magnetic release mechanism 50 (FIG. 2 a).
  • the housing bottom 22 comprises a magnet which cooperates with a magnetic part of the housing 20 and the housing base body.
  • the magnetic release mechanism 50 is disposed below the actuator 15.
  • the Magnetlettemechanismus 50 allows a straightforward release of the housing bottom 22 from the housing 20. Furthermore, the magnetic release mechanism 50, provided that it, as shown in Figure 2a, centrally mounted on the housing bottom 22, a rotational movement of the housing base body and associated with this lid member 10 to the Caseback 22, which is usually adherently connected to the floor. For this purpose, the opposing surfaces of the magnet and the magnetic part of the housing 20, such as the projection 16, are mounted such that a rotational movement is made possible. Preference is given to smooth surfaces which slide on one another.
  • the housing is designed on its side facing the housing bottom such that a compartment for energy storage cells is freely accessible when the housing bottom 22 is separated from the housing 20.
  • a compartment for energy storage cells is freely accessible when the housing bottom 22 is separated from the housing 20.
  • the magnetic release mechanism 50 it is possible to simplify a change of the energy storage cells, e.g. is regularly required for the supply of a transmitting device in the housing.
  • the second state can not be achieved if the cover element 10 has assumed the predetermined, in particular a maximum, possible inclination angle ⁇ . If this state is reached and pressed with a vertically acting force from the edge of the lid member 10, so this will tend, ie the inclination angle ⁇ decreases again until he, with the stop on the housing bottom 22 as a fulcrum, finally the stage two triggers.
  • Due to the tilting possibility according to the invention with stop, ie with a maximum possible angle of inclination is therefore achieved that at a force on the edge (which is always the case when the foot of the user is placed laterally, since this edge protrudes) always only switch 41 is activated.
  • the central return forces are taken over by the two springs 31, 32.
  • Spring 31 has a spring constant of about 1 N / mm and a bias of 20 N.
  • the cover member 10 is depressed 2.5 mm and triggers the first switch 41.
  • the second spring 32 is pressed in parallel.
  • This spring has a spring constant of 5 N / mm and is biased to 25 N.
  • the second switch 42 is activated at 5.3 mm. This requires a force of 61.8 N (25.3 N + 36.5 N).
  • the total crushable distance, i. the sum of the first and second height offset sections is limited to approx. 5.5 mm.
  • the lid member 10 sets on the outside of the housing bottom 22. This force diagram applies to central operation of the foot pedal.
  • the necessary force is about 1 1, 4 N and the first switch 41 is triggered.
  • the second spring 32 is not yet loaded.
  • the lower element 52 then lies exactly on the projection 16.
  • a pressure point on the cover element 10 is required, ie spaced from the edge of the cover element 10, and not on its edge.
  • the trigger values for the second switch 42 may be calculated depending on the diameter of the lid member 10 and the position of the pressure point.
  • the 61, 8 N values are lowest for central actuation (see calculations above) and increase significantly with the distance of the pressure point from the midpoint of the cover element. At the edge of the lid member 10, these go mathematically, infinity, since the force acts vertically on the fulcrum.
  • the triggering force for the second switch 42 at a pressure point at a distance of eg 2 cm to its edge is at least 232 N. At such a high value is an unintentional triggering almost impossible. The user is thus forced to press the foot pedal as centrally as possible to activate the second function.
  • triggering of the first function is possible even at low forces of 1 1, 4 to 22.8 N (depending on the printing position) at each point of the cover element 10.
  • a typical foot pedal according to the invention has a diameter of 13-25 cm and a peak height of about 4 cm.

Landscapes

  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Mechanical Control Devices (AREA)

Abstract

La présente invention propose une pédale, destinée à commander un dispositif à usage médical, en particulier un dispositif à usage dentaire, comprenant un boîtier (20) pourvu d'un fond (22), un élément de recouvrement (10) qui est montée de manière inclinable par rapport au fond (22) et déplaçable dans le sens de la hauteur par rapport au fond (22) dans une direction d'actionnement (B), un premier commutateur (41) destiné à ordonner une première fonctionnalité au niveau de l'appareil à usage médical et un second commutateur (42) destiné à ordonner une seconde fonctionnalité au niveau de l'appareil à usage médical et un moyen d'actionnement (15) qui est déplaçable dans le sens de la hauteur dans la direction d'actionnement (B), qui actionne le premier commutateur (41) pendant un mouvement dans la direction d'actionnement (B) dans une première partie de déplacement en hauteur et qui actionne le second commutateur (42) dans une seconde partie de déplacement en hauteur. Le moyen d'actionnement (15) est conçue de manière à se trouver dans un premier état dans la première partie de déplacement en hauteur et dans un second état dans la seconde partie de déplacement en hauteur. La pédale (1) est conçue de telle sorte que, lorsque l'élément de recouvrement (10) présente le plus grand angle d'inclinaison possible, le moyen d'actionnement (15) est toujours disposé dans la première partie de déplacement en hauteur.
EP17777190.4A 2016-09-30 2017-09-14 Pédale pour commander un dispositif à usage médical Active EP3520128B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016118602.3A DE102016118602B4 (de) 2016-09-30 2016-09-30 Fußpedal zum Steuern eines medizinischen Geräts
PCT/EP2017/073181 WO2018059960A1 (fr) 2016-09-30 2017-09-14 Pédale pour commander un dispositif à usage médical

Publications (2)

Publication Number Publication Date
EP3520128A1 true EP3520128A1 (fr) 2019-08-07
EP3520128B1 EP3520128B1 (fr) 2021-10-06

Family

ID=59982343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17777190.4A Active EP3520128B1 (fr) 2016-09-30 2017-09-14 Pédale pour commander un dispositif à usage médical

Country Status (5)

Country Link
US (1) US10777373B2 (fr)
EP (1) EP3520128B1 (fr)
DE (1) DE102016118602B4 (fr)
ES (1) ES2902142T3 (fr)
WO (1) WO2018059960A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11484724B2 (en) 2015-09-30 2022-11-01 Btl Medical Solutions A.S. Methods and devices for tissue treatment using mechanical stimulation and electromagnetic field
USD1001749S1 (en) * 2020-05-13 2023-10-17 University Of South Florida Base plate for a foot pedal
USD961532S1 (en) * 2020-08-10 2022-08-23 Dhupar Innovations, LLC Foot switch for a medical device
DE102023101485A1 (de) 2023-01-19 2024-07-25 Olympus Winter & Ibe Gmbh Fußschaltervorrichtung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6603334U (de) * 1969-05-22 1969-09-04 Grundig Emv Fussschalter fuer ein diktiergeraet
DE1942495C2 (de) * 1969-08-21 1971-11-04 Grundig Emv Fusschalter fuer ein diktiergeraet insbesondere magnetton bandgeraet
US3980848A (en) * 1972-10-16 1976-09-14 Carl Zeiss-Stiftung Device for the remote control of motions and operations of microsurgical equipment
DE2814869A1 (de) * 1978-04-06 1979-10-11 Olympia Werke Ag Fusschalter zur steuerung der betriebszustaende von naeh-, diktier- und dergleichen maschinen
JP3219353B2 (ja) * 1994-08-26 2001-10-15 アルプス電気株式会社 回転操作型スイッチおよび多方向入力装置
US7439463B2 (en) * 2006-01-17 2008-10-21 Dentsply International Inc. Foot switch for activating a dental or medical treatment apparatus
US7446271B2 (en) * 2006-02-10 2008-11-04 Siemens Energy & Automation, Inc. Circuit breaker interlock devices, systems, and methods
DE202006015718U1 (de) * 2006-07-14 2007-01-04 steute Schaltgeräte GmbH & Co. KG Fußschalter mit Bodenkontakten
US20090272221A1 (en) 2008-05-01 2009-11-05 Freedom Special Technologies, Inc. Wireless foot pedal controller for welding system
KR101038925B1 (ko) * 2009-03-12 2011-06-03 국립암센터 회전 3자유도를 가지는 발판입력장치
WO2011130236A1 (fr) 2010-04-12 2011-10-20 Levin, Leana Système comprenant un instrument dentaire sans fil et une pédale de réglage sans fil universelle

Also Published As

Publication number Publication date
US10777373B2 (en) 2020-09-15
ES2902142T3 (es) 2022-03-25
EP3520128B1 (fr) 2021-10-06
WO2018059960A1 (fr) 2018-04-05
DE102016118602B4 (de) 2021-02-04
DE102016118602A1 (de) 2018-04-05
US20200043682A1 (en) 2020-02-06

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