DE102016105554B4 - Foot control device for operating a surgical device, surgical device and method for operating a foot control device - Google Patents

Abstract

Foot control device (2) for a surgical device (1), comprising a base body (3) and a pedal (4) which is movably mounted on the base body (3) relative to the base body (3), the pedal (4 ) has a first pedal part (6), which is pivotable about at least one pivot axis (A, F) relative to the base body (3), and depending on the pivoting movement of the first pedal part (6) at least one operating function of the surgical device (1) selectable and / or adjustable, characterized in that the pedal (4) comprises a second pedal part (7) which is arranged on the first pedal part (6) relatively movable to the first pedal part (6), wherein, depending on the relative movement of the second Pedal part (7) to the first pedal part (6) at least one operating function of the surgical device (1) is selectable and / or adjustable.

Description

Technical area

The invention relates to a Fußschaltgerät for a surgical device, with a base body and with a pedal which is movably mounted on the base body relative to the base body. The pedal has a first pedal part, which is pivotable about at least one pivot axis relative to the base body, wherein depending on the pivotal movement of the first pedal part at least one operating function of the surgical device is selectable and / or adjustable.

State of the art

In surgical ophthalmology, a variety of different diseases of the eye are treated. For this purpose, for example, the treatment of cataracts, which is also referred to as cataract to mention. In phaco surgery to remedy such eye diseases, it is known to use microsurgical tools that can be inserted into the eye through a relatively small incision and perform a variety of surgical functions therein.

A very common method is phacoemulsification, in which a surgical handpiece is used as a microsurgical tool. This handpiece generally comprises a relatively small diameter hollow needle tip adapted for emulsifying, fragmenting and / or cutting tissue after it has been inserted into an incision in the cornea or sclera of the eye. In addition, this tip of the handpiece may have a central channel which is connected to a suction source, for example a pump, which sucks the tissue remnants of the shattered lens from the eye. The handpiece may further be configured to deliver a rinse fluid to the eye, for example a saline solution (BSS solution), to rinse the eye during the treatment. The removed tissue, which is sucked by the eye together with the flushing fluid, is collected, for example, in a collecting container, which is usually arranged away from the handpiece. The handpiece typically includes ultrasonic means for shattering the lens of the eye which excites the tip of the handpiece for oscillation. This oscillation of the tip shatters the lens into small pieces.

The operation of the surgical device or the surgical system is usually carried out with a Fußschaltpult or a Fußschaltgerät. This allows a surgeon to select and / or adjust various operational functions of the surgical device with the foot. This has advantages in that he continues to have both hands free for other activities, especially holding other instruments with which the operation is performed.

From the US Pat. No. 6,150,623 B1 a foot control device is known in which a foot operated pedal is pivotally mounted on a base body of the Fußschaltgeräts. Separate from the pedal are spaced and laterally of the pedal vertically Asked plate elements, which are pivotally mounted on the base body. The surgeon can reach these lateral plate members only when he moves the foot as a whole relative to the pedal and rotates about a vertical axis of his leg to the side in order to then reach a plate element and then push it to the side to the outside can.

Furthermore, from the EP 1 521 279 A1 a Fußschaltgerät known, in which also separately from an actuable pedal laterally to the pedal and spaced therefrom pressure buttons are arranged in the base body, which are also actuated by the foot of the surgeon. Again, these can only be achieved by the fact that the surgeon must remove the foot from the pedal and put on a push button to operate this can.

From the DE 698 10 316 T2 For example, a foot pedal with two different positions for an ophthalmic surgical apparatus is known. This foot pedal includes a pedal and a pedestal and means to rotatably mount the pedal to the pedestal and to allow a 180 ° rotation between the pedal and the pedestal to access it by either a toe of the user or a user's sole to provide for the operation of the pedal.

Since the operation of the footswitch is usually done without eye contact of the surgeon, a sufficient accuracy is required for the achievement of the respective actuated components with the foot. This is not sufficiently offered in the known Fußschaltgeräten. As a result, incorrect operations can occur and / or delayed actuation occur when the surgeon first has to search, for example by pressing the foot, where the desired element to be actuated on the foot control device is.

Presentation of the invention

It is an object of the present invention to provide a Fußschaltgerät, in which the operation is easier. Accordingly, it is an object to provide a surgical device whose Operation with the foot control is simplified. It is also an object of the present invention to provide a method in which a simple operation of a Fußschaltgeräts is made possible.

These objects are achieved by a footswitch, a surgical device and a method according to the independent claims.

An inventive foot control device for a surgical device is designed to operate this surgical device. The foot control device comprises a base body. In addition, the foot control device comprises a pedal which is movably mounted on the base body. By means of this mounting, the pedal is movable relative to the base body. The pedal has a first pedal part, which is pivotable about at least one pivot axis relative to the base body. Depending on the pivoting movement of the first pedal part and relative to this base body movably mounted on the base body state at least one operating function of the surgical device is selectable and / or adjustable. It is provided in particular that the pedal has a second pedal part. The second pedal part is mounted on the first pedal part relatively movable to the first pedal part and arranged on the first pedal part. Depending on the relative movement of the second pedal part to the first pedal part, at least one operating function of the surgical device can be selected and / or adjusted. By such a design of a Fußschaltgeräts improved operation is achieved. In this context, a user, for example an operator, can operate with one foot in a simpler and more targeted manner. Due to the design of the pedal with two separate pedal parts which are movable relative to each other and beyond even the entire pedal with the two pedal parts is movable relative to the base body, a highly flexible and variable operation can be achieved. By the local positions of the pedal parts to each other, in particular the direct juxtaposition, an immediate proximity of these pedal parts is given to each other. This also makes it possible that an actuator in the form of a foot of a user even without eye contact with the Fußschaltgerät allows a very accurate and accurate operation. A longer search of the pedal or components thereof with a foot of a user is therefore no longer required, so that the operation can also be faster and more accurate.

It is thus also provided in the invention that the pedal itself is designed as a multi-component unit and each of these components, which are designed as pedal parts, individually allow actuation and resulting individually then a selection and / or adjustment of an operating function is possible. By a single component of the Fußschaltgeräts, namely by the pedal, thus the operation can be duplicated and thus the amount of operating functions that can be selected and / or adjusted, be increased. Last but not least, then a design of different operating concepts is variable. This for the reason that by the design of the pedal and at least a phase-wise simultaneous operation of both pedal parts can be done and thus at least in phases at the same time, for example, different operating functions can be selected and / or adjusted.

In an advantageous embodiment, it is provided that the second pedal part is motion-coupled with the first pedal part during the pivotal movement of the first pedal part. This is a very advantageous embodiment, since thus the local position of the pedal parts remains unchanged in such a pivoting of the first pedal part and thus a relative position of the two pedal parts is maintained to each other even with a pivoted position of the first pedal part. The second pedal part always performs at least always completely the movement of the first pedal part. Even in different pivot positions of the first pedal part to the base body then the position of the two pedal parts is always the same, so that in each pivot position of the first pedal part to the base body, the operating processes, especially the second pedal part, are equal to a foot. This also gives a very intuitive and easy to carry out operation of the second pedal part in all pivot positions of the first pedal part relative to the base body. This also increases the operating safety of the foot switch. In particular, in this context, a very fast operation, in particular also of the second pedal part, continues to be achieved in all pivot positions. In all positions of the first pedal part to the base body then the second pedal part is always in the same relative position to the first pedal part, when the second pedal part is not moved itself relative to the first pedal part. Thus, in any position of the first pedal part relative to the base body, the basic position between the pedal parts is the same, and then, if appropriate, to actuate the second pedal parts thereof.

By this advantageous embodiment, as mentioned above, then a very ergonomic operation, in particular of the second pedal part in all pivotal positions of the first pedal part is achieved relative to the base body. Especially with extensive and / or time-long operations of the footswitch unwanted or strenuous foot positions of a user of the footswitch are then avoided.

In particular, it is provided that the second pedal part is arranged only on the first pedal part and is mechanically connected only to this. Thus, then no mechanical connection of the second pedal part, for example on the base body of the Fußschaltgeräts formed. The above-mentioned movement concepts of the entire pedal as such as well as the individual pedal parts is thereby improved. A very smooth operation and thus a smooth movement of the pedal is achieved and there are no multiple mechanical connections of the second pedal part to actuate the base body to operate the pedal parts together or individually.

In particular, it is provided that the pedal part with its two pedal parts, which are each formed during actuation for selecting and / or setting an operating function, only via the pivot connection or pivotal mounting of the first pedal part with the base body has a mechanical connection with the base body.

It is envisaged that the entire movement of the pedal, comprising the two pedal parts, only about this pivot axis, via which the first pedal part to the base body is movable, to the base body is movable.

In an advantageous embodiment, it is provided that the second pedal part is connected to the first pedal part with a pivotal connection. The pivot connection has a pivot axis about which the second pedal part is pivotable relative to the first pedal part for selecting and / or setting at least one operating function. In such an embodiment, it is then provided that the relative movement between the two pedal parts is a non-linear movement, in particular a rotational movement. Such a configuration is particularly advantageous in that the predetermined movement of the second pedal part is thus adapted to a natural movement of the foot part, in particular of a toe. Is in the context namely provided that the operation of the second pedal part with a toe, in particular at least the big toe, a foot should be done so this big toe also performs a corresponding pivoting movement about a toggle when moving to the rest of the body of the foot. By thus in such a specific operation of the second pedal part, the movement forms between the toe and the second pedal part are matched, the operation is again very ergonomic, easy and targeted achieved.

The pivot axis may be oriented in the width direction (perpendicular to a longitudinal axis of the pedal) of the first pedal part and thus also of the pedal or else be oriented parallel or coaxial with a longitudinal axis of the pedal.

Preferably, this pivot axis about which the second pedal part is pivotable relative to the first pedal part, oriented in the plane in which the first pedal part extends or this pivot axis is oriented parallel to this plane. This applies then in particular also for each pivotal position of the entire pedal to the base body and thus also for each pivotal position of the first pedal part to the base body.

Preferably, it is provided that in a further embodiment, the second pedal part may be a push button or a pressure switch. In particular, in such an embodiment of the second pedal part, the movement type is not a pivoting movement or a rotational movement, but a linear movement. Even with such a configuration a simple operation is still possible. A push button can also be made relatively small, so that the pedal is compact.

In an advantageous embodiment, viewed in a width direction of the first pedal part, the second pedal part is arranged at least partially overlapping with the first pedal part. This local positioning of the two interconnected pedal parts favors the simple, ergonomic and targeted operating concept again. Because it is then possible without extensive change in position of a foot to operate the entire pedal with the two pedal parts, on the other hand, however, then only to operate the second pedal part alone.

In an advantageous embodiment it is provided that the second pedal part is arranged in this width direction of the first pedal part completely within the width of the first pedal part. An in the lateral direction protruding outward of the second pedal part on the first pedal part is not given in this embodiment. As a result, the pedal can be made relatively narrow as such. Further, upon actuation of the entire pedal no abutment of the second pedal part to other components of the Fußschaltgeräts, in particular on the base body associated.

In particular, it is provided that the first pedal part is adjustable in its length. This has the advantage that an adaptation to different foot sizes is possible. As a result, the simple operation is easily possible for different people with different foot lengths.

It can be provided that such a change in length of the first pedal part can take place in stages or else continuously. The length of the first pedal part is measured in the direction of a longitudinal axis of the pedal part. A longitudinal axis of a foot is then also dimensioned in the direction of this longitudinal axis, this longitudinal axis of a foot extending between a heel and the toes of a foot. A shortening or lengthening of the first pedal part thus takes place in adaptation to a corresponding length of a foot.

Advantageously, it is provided that the first pedal part is designed such that a dimensioned in the direction of the length distance between the pivot axis about which the pedal is pivotally as a whole to the base body, and a relative mobility between the pedal parts enabling connection point is variably adjustable , This is a particularly advantageous embodiment, since thus also the distance measured in the longitudinal direction between two bearing points of the pedal parts can be changed. This in turn has significant advantages on the operation of the pedal with a foot, because on the one hand then the entire pedal to the pivotal connection connected to the base body by appropriate force with the foot, in particular the heel and / or the ball of the foot done. On the other hand, then always a foot-adapted position of the second pedal part is achieved to the pivot axis about which the first pedal part to the base body is pivotable, which allows easy operation of the second pedal part alone with at least one toe or more toes. This connection point is formed in particular by a connecting device.

In particular, in such an adjustment, a distance between a rear edge of a first pedal part facing away from the second pedal part and this pivot axis about which the pedal is pivotable relative to the base body remains the same.

To such a change in distance between the pivot axis about which the first pedal part is pivotable relative to the base body, and the connection point, the first pedal part is provided with a coupling point at which two pedal elements of the first pedal part viewed in the longitudinal direction are relatively movable coupled to each other. In particular, it is provided that a dimensioned in this longitudinal direction distance between the pivot axis about which the entire pedal is pivotable relative to the base body, and the rear edge of the first pedal part is dimensioned such that it substantially the size and extent of a foot in this longitudinal direction equivalent. It is thereby achieved that in the mounted state of a foot on the pedal, the heel of the foot rests, at least with predominant length in that length on the top of the first pedal part, which extends between this pivot axis and the rear edge of the first pedal part. This allows a particularly precise and accurate operation of the first pedal part and thus also of the entire pedal. Because in this context, the foot then extends viewed in its longitudinal direction on both sides of this pivot axis, so that a corresponding lever functionality or a Wippfunktion can be carried out particularly accurately. Even then, the ergonomic operating concept is again favored.

It is preferably provided that the second pedal part, viewed along a longitudinal axis of the pedal, which is oriented in the direction of the two pedal parts arranged in series, has a length which is less than one-fifth, in particular less than one-sixth, of the length of the first pedal part. The second pedal part is thus very small dimensions, so that the entire pedal is compact. Nevertheless, then a sufficient size is available to hit the second pedal part unerring with a foot, in particular with at least one toe or more toes, and then to allow a more accurate operation.

It is preferably provided that the second pedal part along a longitudinal axis of the pedal, which is oriented in the direction of the particular in series arranged two pedal parts, has a length corresponding to a length of a big toe of a foot. As a result, the best possible support of at least one big toe on the second pedal part is made possible, as a result of which, in turn, the actuation of the second pedal part can then take place safely.

Preferably, it is provided that the first pedal part and the second pedal part are arranged to each other, that in an operating position of a foot on the pedal, the foot is positioned simultaneously with respect to the length of the pedal above the first pedal part and above the second pedal part. This means that in a projection view from the top of the pedal of the foot in this operating position extends in both the area of the first pedal part and in the area of the second pedal part. This improves the above-mentioned operating concept. Because it is then on the one hand a corresponding local compactness of the two pedal parts, on the other hand provided a local positioning of the pedal parts to each other, which is adjusted according to the size of a bottom or a sole of a foot, whereby a variable operation of the pedal parts without relative movement of the foot as a whole to the pedal is reached. A particularly ergonomic Actuation possibility of the pedal parts on the one hand and a Fehlerminimierte operation of the pedal is made possible.

Preferably, it is provided that the first pedal part and the second pedal part are arranged to each other, that in the operating position of the foot on the pedal, the first pedal part is actuated and without changing the position of a foot of the foot between the heel and the ball of his foot on the pedal second pedal part is actuated. By this configuration is achieved in a particularly advantageous manner that a patch on the pedal foot practically no longer has to be moved as a whole relative to the first pedal part, on the one hand to actuate the entire pedal, on the other hand to operate only the second pedal part. A particularly relaxed operating concept with regard to the movements of the foot is thereby made possible. Fatigue of the foot during extensive or long operations of the pedal can therefore be avoided. This also means that again incorrect operation can be significantly reduced. The foot can thus be left in its once reached operating position on the pedal, then in this operating position both the entire pedal can be pivoted about at least one pivot axis relative to the base body and at the same time or delayed with the toes or at least one toe presses the second pedal part can be. In addition to increased operating safety, the operating variability is also increased.

Due to the position indicated in the advantageous embodiment, in which then the heel and the ball of the foot are placed on the first pedal part, in particular only on the first pedal part, and are not placed on the second pedal part, on the other hand toes or at least not the big toe is placed on the first pedal part or are or can not be placed on it, a preferred location of the second pedal part is achieved for actuation only with a toe or more toes.

In particular, the pedal is designed in such a way that, when the foot is placed on the pedal as intended, and thus in an actuating position of the foot on the pedal, a longitudinal axis of the foot is oriented parallel to a longitudinal axis of the pedal. Even small angles, for example between + 15 ° and -15 °, between these longitudinal axes are possible for the fulfillment of the operating position.

In particular, it is provided that the second pedal part has at least one plate. As a result, a very flat structure of the second pedal part is given. In addition, a very large area is provided, which can be touched and contacted with a specific foot part, in particular one or more toes.

It may be provided that the second pedal part in the unactuated state extends in the same plane as the first pedal part, so that a flat top between the first pedal part and the second pedal part is formed.

It can also be provided that this plate extends over the entire width of the first pedal part. This can then be made a touchdown of several toes and the actuation of the second pedal part can be achieved with multiple toes. In particular, an actuation is provided to the effect that the second pedal part can be pressed down from a basic position. A relaxed foot position on the pedal is thus also given.

Then, when such a depressed operating position of the second pedal part is reached and the operation is then finished again by the toe or toe no longer exert downward pressure on the second pedal part, it is preferably provided that the second pedal part is automatically returned to its normal position , For this purpose, for example, be provided that the Fußschaltgerät a return element, for example, a return spring has, through which then the second pedal part is automatically traceable to the normal position.

Accordingly, this is preferably also provided for the first pedal part and thus for the entire pedal. Therefore, an automatic return of the first pedal part is then achieved in the basic position.

In a further advantageous embodiment can also be provided that the second pedal part, when it is formed as a plate, has a width which is smaller than the width of the first pedal part. As a result, a smaller and weight-reduced second pedal part is provided which is to be operated faster and with less effort in terms of the inertia of the movement.

It can be provided that the width of the second pedal part corresponds, for example, to the width of a big toe of a foot. This is advantageous when the operation of the second pedal part is provided in particular with the big toe. In particular, in the context then also provided that the second pedal part is arranged eccentrically to the first pedal part, so that here again in the mounted state of the foot, the ergonomic operation with the large Toe is reached and a movement-minimized operating concept for a foot is possible.

It can also be provided that the second pedal part has at least two separate plates as pedal part elements which are arranged on a front edge of the first plate part and are relatively movable there relative to the first plate part. This makes it possible that these two plates of the second pedal part can also be operated independently again, so that here too the choice and / or adjustment of one or more operating functions is increased again. It may then be provided in the context that these two plates of the second pedal part viewed in the width direction of the pedal are arranged side by side and, for example, a first plate of the second pedal part can be operated with the big toe and the second plate arranged adjacent to the second pedal part is operable with the other toes.

In a further advantageous embodiment it can be provided that the second pedal part has a first pedal part element and a second pedal part element separate therefrom, wherein the two pedal part elements are arranged movable relative to the first pedal part. Depending on a relative movement of a pedal part element to the first pedal part, at least one operating function of the surgical device can be selected and / or adjusted. The two pedal sub-elements are arranged one above the other and spaced apart in the height direction of the pedal, wherein by the spacing a free space is formed into which a toe of a foot, in particular a big toe of a foot, can dip. In such an embodiment, it is then possible that by a downward pivoting, for example, the big toe down this lower pedal part element is actuated and by pivoting the big toe upward upward pushing of the upper further Pedalteilelements is possible. This also increases the variability of the setting and / or the selection of one or more operating functions.

If the second pedal part is designed as a plate, it can be provided that, in a basic position of the second pedal part, an upper side of the second pedal part is flush with an upper side of the first pedal part. In particular, the two plate parts are then arranged in a plane. It can also be provided that the two pedal parts are arranged in an inclined position to each other, but the mutually adjacent or mutually facing edges of the pedal parts are arranged parallel to each other. An ergonomic setting up of a foot on the pedal parts is achieved and a fatigue-free operation of the pedal parts is achieved over a longer period of time. In particular, when no operation is required, but the foot continues to be placed on the pedal, then a relaxed position of the foot is possible.

In a further embodiment it can be provided that the second pedal part is a push button or a pressure switch, which is arranged on the first pedal part. In particular, in such an embodiment then only a linear actuation possibility is provided so that, for example, this push button or pressure switch can be pressed with a corresponding force with a toe down. Here too, an automatic return of the pushbutton to a basic position can then be effected, in particular by a return element, when the operation by the toe has ended.

In such an embodiment can also be provided that the push button or pressure switch is raised in its basic position with a surface or top raised above a top of the first pedal part. However, it may also be provided that in such an unactuated basic position, an upper side of this push button or pressure switch is flush with an upper side of the first pedal part.

In addition, it can be provided that the first pedal part is plate-like and is structured on its upper side and / or has a slip-resistant coating. As a result, the positioning of a foot on the first pedal part is improved and slipping can be avoided.

In a further embodiment it can be provided that the first pedal part in its plate-like configuration is not completely flat at its upper side, on which then a foot can be erected, but is designed with unevenness. For example, it is provided here that the region on which the foot is then placed with its heel and ball of the foot represents a first area which is at an angle to a second area of the first pedal part, in which then the push button or the pressure switch is arranged. This can be avoided that in a basic position of the foot already slightly downwardly oriented toes immediately and unintentionally trigger an actuation of the second pedal part. An ergonomic position adjustment of the pedal to an individual position between the toes of a foot and that portion of the foot, which includes the heel to the ball of the foot, is thereby made possible.

It may be provided in a further advantageous embodiment, that the pedal has an adjusting device, with which the angular position between the first pedal part and the second pedal part is adjustable and then after adjustment, the angular position of the two pedal parts is fixed to each other. Regardless of this angle setting possibility, however, then further allows unrestricted that in a fixed angular position to each other, the second pedal part is still relatively movable to the first pedal part and thus the operation for selecting and / or setting an operating function is given. This also allows individual ergonomic requirements to be taken into account. This fixable angle adjustment between the first pedal part and the second pedal part can be made stepless or in discrete stages.

The footswitch can also have a carrying handle. Likewise, it may include a heel support for a foot and / or footrests for laterally positioning a foot on the pedal. These supports may be slidably and / or pivotally mounted on the pedal. However, no actuation is combined with them that would result in selection and / or adjustment of one or more operational functions.

The terms "top", "bottom", "front", "rear", "horizontal", "vertical", "width direction", "longitudinal direction", etc., indicate the positions and orientations given when the device was used and disposed as intended.

list of figures

• 1 eine schematische Darstellung eines Ausführungsbeispiels eines chirurgischen Geräts gemäß der Erfindung;
• 2 eine schematische Seitenansicht eines Ausführungsbeispiels eines erfindungsgemäßen Fußschaltgeräts;
• 3 eine Darstellung des Fußschaltgeräts gemäß 2 mit darauf positioniertem Fuß und in einem unbetätigten Zustand eines zweiten Pedalteils eines Pedals des Fußschaltgeräts;
• 4 eine Darstellung gemäß 3 in einem betätigten Zustand des zweiten Pedalteils;
• 5 eine Seitenansicht eines weiteren Ausführungsbeispiels eines Fußschaltgeräts gemäß der Erfindung mit einem auf dem Pedal des Fußschaltgeräts aufgestellten Fuß;
• 6 eine schematische Draufsicht auf ein weiteres Ausführungsbeispiel eines Pedals eines Fußschaltgeräts gemäß der Erfindung;
• 7 eine Draufsicht auf ein weiteres Ausführungsbeispiel eines Pedals eines Fußschaltgeräts gemäß einer Ausführungsform der Erfindung;
• 8 eine schematische Draufsicht auf ein weiteres Ausführungsbeispiel auf ein Pedal eines Ausführungsbeispiels eines erfindungsgemäßen Fußschaltgeräts;
• 9 eine schematische Draufsicht auf ein weiteres Ausführungsbeispiel eines Pedals eines Ausführungsbeispiels eines erfindungsgemäßen Fußschaltgeräts;
• 10 eine schematische Draufsicht auf ein weiteres Ausführungsbeispiel auf ein Pedal eines Ausführungsbeispiels eines erfindungsgemäßen Fußschaltgeräts;
• 11 eine schematische Schnittdarstellung einer Ausführungsform des Pedals gemäß 10;
• 12 eine schematische Schnittdarstellung einer zweiten Ausführungsform des Pedals gemäß 10;
• 13 eine schematische Schnittdarstellung einer dritten Ausführungsform des Pedals; und
• 14 eine schematische Schnittdarstellung einer weiteren Ausführungsform der Pedale gemäß 6 bis 10 eines Ausführungsbeispiels eines erfindungsgemäßen Fußschaltgeräts.

Embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:

• 1 a schematic representation of an embodiment of a surgical device according to the invention;
• 2 a schematic side view of an embodiment of a Fußschaltgeräts invention;
• 3 an illustration of the Fußschaltgeräts according to 2 with a foot positioned thereon and in an unactuated state of a second pedal part of a pedal of the foot switch;
• 4 a representation according to 3 in an actuated state of the second pedal part;
• 5 a side view of another embodiment of a Fußschaltgeräts according to the invention with a set up on the pedal of the Fußschaltgeräts foot;
• 6 a schematic plan view of another embodiment of a pedal of a Fußschaltgeräts according to the invention;
• 7 a plan view of another embodiment of a pedal of a Fußschaltgeräts according to an embodiment of the invention;
• 8th a schematic plan view of a further embodiment of a pedal of an embodiment of a Fußschaltgeräts invention;
• 9 a schematic plan view of another embodiment of a pedal of an embodiment of a Fußschaltgeräts invention;
• 10 a schematic plan view of a further embodiment of a pedal of an embodiment of a Fußschaltgeräts invention;
• 11 a schematic sectional view of an embodiment of the pedal according to 10 ;
• 12 a schematic sectional view of a second embodiment of the pedal according to 10 ;
• 13 a schematic sectional view of a third embodiment of the pedal; and
• 14 a schematic sectional view of another embodiment of the pedals according to 6 to 10 an embodiment of a Fußschaltgeräts invention.

Preferred embodiment of the invention

In the figures, identical or functionally identical elements are provided with the same reference numerals.

In 1 is a schematic representation of an ophthalmic microsurgical system for phaco-surgery on an eye A shown. The representation according to 1 shows symbolically some components of the ophthalmic microsurgical system for the simplified explanation of the general general operation of the system. The ophthalmic microsurgical system is a surgical device 1 ,

The ophthalmic microsurgical system comprises a device unit 100 which may be, for example, a console or the like. In or on the device unit 100 is a control unit 101 arranged. This operating unit 101 For example, it may include a user interface, an input unit such as a keyboard or the like, and a display unit such as a monitor or a display. Furthermore, in the device unit 100 a fluidic system 102 arranged, which a pump and a control unit for controlling the Pump and connected components includes. The fluidic system 102 is an irrigation branch 103 and an aspiration branch 104 assigned. The irrigation branch 103 has a container 105 for rinsing liquid, resulting in a phaco handpiece 106 is directed. The aspiration branch 104 is also with the phaco handpiece 106 connected. Furthermore, the device unit includes 100 an ultrasound unit 107 , which for the oscillation excitation of piezoelectric elements 108 in the handpiece 106 is formed, through which a tip 109 of the handpiece 106 is excited to oscillation. The device unit 100 also has a control unit 110 which is used to control a vitrectomy handpiece 111 is trained. The vitrectomy handpiece 111 is also with the fluidic system 102 through an aspiration line 112 connected. In addition, another control unit 113 provided, which is another surgical instrument 114 , for example, for diathermy controls. In addition, the ophthalmic microsurgical system and in particular the device unit 100 further modules and control units as well as systems include, which symbolically through the unit 115 are shown. This also includes other internal units and peripherals. The ophthalmic microsurgical system further includes a footswitch 2 on, which with the device unit 100 , in particular with communication devices and control units of the device unit 100 , connected is. The said components of the ophthalmic microsurgical system are not to be understood in terms of number, position and function. The ophthalmic microsurgical system can therefore also have other components.

With the foot pedal 2 it is possible to select and / or set operational functions of the ophthalmic microsurgical system. A user, in particular a surgeon, can foot pedestal with one foot 2 actuate. Actuating parameters can also be set as explicit operating functions, such as: a linearly variable scissor cutting speed, a fixed scissor cutting speed, a single action of the scissors blade, a proportional operation of the closing stage of the scissors, an air / fluid pressure, an air / fluid Flow rate, a bipolar power level, a fixed bipolar power level, an illumination brightness level, an aspiration vacuum pressure level, an aspiration flow rate, a linear variable vitrectomy cutting speed, a fixed vitrectomy cutting speed, a single actuation vitrectomy cut; a phacoemulsification power stage, a phaco fragmentation power stage, a phacoemulsification pulse rate and a phaco fragmentation pulse rate. These are merely exemplified actuation parameters, which can be supplemented in many ways. A setting can also be made via the user interface 101 respectively.

In 2 is a schematic side view of an embodiment of a Fußschaltgeräts 2 shown. The footswitch 2 has a base body 3 on, which can be set up on the ground. In addition, the footswitch includes 2 a pedal 4 , The pedal 4 is relatively movable to the base body 3 on the base body 3 arranged yourself. In 2 is a basic position of the pedal 4 shown in the the pedal 4 is not actuated. In this basic position is the pedal 4 angled α at an angle to a horizontal.

The pedal 4 is in particular with a pivot connection 5 with the base body 3 connected. The pivot connection 5 includes a pivot axis A, around which the entire pedal 4 relative to the base body 3 is pivotable. The pivot axis A is directed perpendicular to the plane of the figure. Furthermore, the pedal can 4 as a whole to be rotated about a further pivot axis F perpendicular thereto. It is intended that the footswitch 2 at least one return element, for example, has a return spring, with which the entire pedal 4 in the in 2 shown basic position is automatically traceable when the pedal 4 is moved out of the basic position, in particular pressed down and / or one perpendicular to the pivot axis A oriented further pivot axis F which extends in the figure plane, is rotated.

Depending on such operation and thus pivoting of the entire pedal 4 around the pivot axis A is a selecting and / or setting at least one operational function of the surgical device 1 allows.

As in the illustration according to 2 can be seen, points the pedal 4 a first pedal part 6 and a separate second pedal part 7 on. The second pedal part 7 is at the first pedal part 6 arranged in particular only on the pedal part 6 arranged. It is also relatively movable to the first pedal part 6 arranged thereon. In 2 is the second pedal part 7 also shown in a basic position. When operating the second pedal part 7 relative to the first pedal part 6 is then also selecting and / or setting at least one operational function of the surgical device 1 allows. This operating function is in particular a function other than the operation by pivoting the pedal 4 around the pivot axis A and / or the pivot axis F is selectable and / or adjustable.

In the embodiment shown is an upper side 8th of the first pedal part 6 and a top 9 of the second pedal part 7 arranged flush with each other when the basic position of the pedal shown 4 is present.

On these tops 8th and 9 is a foot of a user, such as an operator, erectable, then then by appropriate forces with the foot, the operations of the first pedal part 6 and therefore the entire pedal 4 , and / or the second pedal part 7 to reach.

As you can see, the pedal points 4 a longitudinal axis A and the two pedal parts 6 and 7 are arranged in series in the direction of a longitudinal axis B viewed in series. The second pedal part 7 is with a connection device 10 with the first pedal part 6 connected. The connection device 10 includes a pivot connection 11 which has a pivot axis C perpendicular to the plane of the figure. The pivot axis C is oriented parallel to the pivot axis A. The pivot axis C extends in the embodiment in the plane of the first pedal part 6 ,

In the embodiment shown is thus a relative movement of the second pedal part 7 to the first pedal part 6 a pivoting movement and thus a rotational movement. The second pedal part 7 is only with the first pedal part 6 connected. For carrying out a relative movement of the second pedal part 7 is not an explicitly provided in this connection and motion guide device with the base body 3 designed so that no direct mechanical coupling between the base body 3 and the second pedal part 7 is designed for guiding such a relative movement.

In addition, it is provided that the second pedal part 7 when moving the entire pedal 4 and thus also when moving the first pedal part 6 around the pivot axis A motion coupled with the first pedal part 6 is. So no operation of the second pedal part 7 alone is desired when moving the first pedal part 6 around the pivot axis A and automatically the second pedal part 7 with a movement that moves the first pedal part 6 equivalent. A relative movement between the two pedal parts does not occur then.

However, it can be provided that when moving the pedal 4 as a whole, at least in phases at the same time also a separate individual actuation of the second pedal part 7 is desired and then individually the second pedal part 7 is actuated and thus also additionally a relative movement to the first pedal part 6 is carried out.

As can be seen, is the pivot axis A viewed in the direction of the longitudinal axis B spaced from a rear edge 12 of the first pedal part 6 arranged. The back edge 12 is considered in the direction of this longitudinal axis B the second pedal part 7 away. By this configuration, the pedal 4 designed as a kind of rocker, which can be pivoted about the pivot axis A.

In particular, it is also provided that a length dimensioned in the direction of the longitudinal axis B of the first pedal part 6 is changeable, as indicated by the arrow P in 2 is indicated. In particular, it is provided in the context that a dimensioned in the direction of this longitudinal axis B distance between the pivot axes A and C is variable. A distance between the pivot axis A and the rear edge 12 is preferably, however, unchangeable.

In addition, it can be seen that a length of the second pedal part 7 , which is dimensioned in the direction of the longitudinal axis B, smaller than one-fifth, in particular smaller one-sixth of the length of the first pedal part 6 is.

A distance between the pivot axis A and the rear edge 12 dimensioned in the direction of the longitudinal axis B is preferably designed so that it substantially in the direction of a longitudinal axis D ( 3 ) of a foot 13 measure an appropriate length of a heel 14 of the foot 13 equivalent.

In addition, the length of the first pedal part 6 especially between the rear edge 12 and the connection point or the connection device 10 measured, preferably corresponding to a length of a foot area extending between the heel 14 and foot pads 15 measured. It may then be provided in the context that the pedal 14 a heel support 16 has, as in 2 is shown, which is displaceable in the axial direction and thus in the direction of the longitudinal axis B and thus relative to the first pedal part 6 positionally changeable. This allows an adaptation to different foot lengths done, so that always advantageously a position of a foot 13 on the first pedal part 6 is reached, at which the foot area with the heel 14 and the balls of your feet 15 on the first pedal part 6 seated and toes, especially a big toe 17 on the second pedal part 7 seated. Preferably, it is provided in the context that the operating position of a foot 13 on the tops 8th and 9 the two pedal parts 6 and 7 so is that a toe joint 18 at the height of the connecting device 10 is arranged. By this configuration, a particularly ergonomic operation option is created, since thus virtually the Pivot axis of the toe joint 18 When viewed in the vertical direction, it is arranged above or substantially above the pivot axis C.

In 4 is the representation according to 3 shown here, by pressing at least the big toe 17 down the second pedal part 7 was pressed and about the pivot axis C was pushed down. The relative to the first pedal part 6 pivoted position of the second pedal part 7 can be seen.

Because the heel support 16 is merely an optional component, it is for clarity serving not shown in the other figures.

In 5 is another embodiment of a Fußschaltgeräts 2 shown. In contrast to the embodiment according to 2 to 4 here is provided that the second pedal part 7 two separate pedal parts 7a and 7b having. These two pedal sub-elements 7a and 7b are arranged one above the other in the vertical direction and spaced from each other. This is between the two Pedalteilelementen 7a and 7b a free space 19 trained, in which at least one big toe 17 of the foot 13 can reach into it. By this configuration of the second pedal part 7 may be an actuation of the first pedal subelement 7a as well as an actuation of the second pedal subelement 7b respectively. It may in this context, the first pedal sub-element 7a pressed down and the second pedal sub-element 7b are pushed up to each perform a selection and / or setting an operating function.

In all versions it is provided that in the reached operating position of the foot 13 on the pedal 4 the heel 14 and the balls of your feet 15 on the top 8th of the first pedal part 6 seated. This operating position is then also to the effect that it does not have to be changed to from this operating position, the operation of the second pedal part 7 to be able to effect. The foot 13 as such, therefore, as a whole, does not have to be relative to the first pedal part 6 be moved in the direction of the axis B and / or about a vertical axis E of the foot 13 be twisted to the second pedal part 7 to get to.

It is thus only a toe movement in this once occupied operating position of the foot 13 required to the second pedal part 7 to be able to press. In this operating position of the foot 13 can thus the operation of the entire pedal 4 carried out and / or at least temporarily simultaneously the operation of the second pedal part 7 done alone.

In 6 is a schematic plan view of an embodiment of a pedal 4 shown. In this embodiment, the second pedal part 7 a plate-like strip. It extends here as an integral part of a perpendicular to the longitudinal axis B measured width b of the first pedal part 6 ,

In 7 is a further schematic plan view of another embodiment of a pedal 4 shown. This one is different from the 6 provided that the second pedal part 7 a first pedal subelement 7a and a second pedal subelement 7b having. In this embodiment, the two pedal sub-elements 7a and 7b in the width direction (measured perpendicular to the longitudinal axis B) arranged side by side. They extend in the basic position in a same plane, in particular also the plane of the plate-like configuration of the first pedal part 6 equivalent. The two pedal sub-elements 7a and 7b are independently operable. So then if, for example, a right foot on the pedal 4 is placed, the Pedalteilelement 7a especially with a big toe 17 a foot 13 be actuated, and the other pedal sub-element 7b can with then other toes of the foot 13 be operated. The width of the two pedal sub-elements 7a and 7b may be the same, but may be different.

In 8th is another embodiment of a pedal 4 shown in a schematic plan view. In contrast to the embodiment in 6 here is the second pedal part 7 in its width smaller than the width b of the first pedal part 6 , In particular, the top is 9 formed with a surface, preferably only the laying of a big toe 17 a foot 13 allows. The preferably off-center arrangement of the second pedal part 7 to the longitudinal axis B, which is a center axis of the pedal 4 and in particular also the first pedal part 6 is shown.

In 9 is another embodiment of a pedal 4 shown in a schematic plan view. In this embodiment, the second pedal part 7 viewed in the direction of the longitudinal axis B at least partially, in particular completely within the length of the first pedal part 6 arranged. The first pedal part 6 has at its front portion a recess in which the second pedal part 7 is arranged. As a result, a uniform quadrilateral is formed and no undesired projection of a component is formed. A sticking or bumping on an exposed protruding part of the pedal 4 is avoided.

In 10 is a schematic plan view of another embodiment of a pedal 4 for a footswitch 2 shown. In this embodiment, the second pedal part 7 no plate-shaped part, which is about a pivot axis C is pivotable. In this embodiment, this second pedal part 7 a push button or pressure switch, which can only be operated linearly and along a pressure axis G can be actuated, which is perpendicular to the figure plane in the representation in 10 is oriented.

Again, with respect to the position and size of the top 9 an adaptation to an operation with a big toe 17 a foot 13 intended.

In 11 is a schematic sectional view of the pedal 4 according to 10 shown in a first embodiment. As can be seen here, the top is 9 not flush with the top 8th so that the second pedal part 7 in its basic position, stands up.

In contrast, as shown in 12 also be provided that in the unactuated ground state, the top 9 flush with the top 8th is.

As in the versions according to 11 and 12 can be seen, is the first pedal part 6 just trained. It can be provided in this context, a different configuration, as in 13 is shown in a further schematic sectional view. In the embodiment, it is provided that the first pedal part 6 is uneven and formed in a Pedalteilbereich in which the second pedal part 7 is arranged, kinked or tilted. This allows a certain downwardly inclined basic position of toes of a foot 13 be favored and it is at these basic positions of the toes 13 not undesirable already an actuation of the second pedal part 7 triggered. In the illustrations according to 11 to 13 is the pusher axis G located along which the second pedal part 7 can be pushed down linearly.

The embodiment of the first pedal part 6 as shown in 13 Of course, however, also for the execution according to 12 or for the embodiments according to 2 to 9 be educated.

In 14 is a further schematic sectional view of an embodiment of a pedal 4 shown. In this embodiment, starting from a plate-like second pedal part 7 as described in the examples according to 2 to 9 has been explained, also a certain inclined basic position between the first pedal part 6 and the second pedal part 7 adjustable and changeable. This can be done by a tilting device 20 be realized. This tilting device 20 can in the connecting device 10 be integrated or be a separate device to it. With the tilting device 20 can in discrete stages or steplessly an angle β between the pedal parts 6 and 7 be set, and this position then fixed. In this then individually adjustable and position fixable tilt position of the two pedal parts 6 and 7 to each other can then beyond the already explained further pivoting of the second pedal part 7 take place about the pivot axis C. This also allows individual basic positions of the two pedal parts 6 and 7 be taken into account, so that in turn depends on an individual foot 13 a particularly ergonomic operation is possible. As in the embodiments according to 2 to 9 and also in 13 can be seen, the second pedal part closes 7 or close pedal sub-elements 7a and 7b of the second pedal part 7 to a front edge 21 of the first pedal part 6 at.

The second pedal part 7 is in particular a toe pedal part or a toe control element. This means that it is provided with toes of one foot when this one operating position on the pedal 4 has taken to perform an operation. In particular, in the context then when reaching the operating position of the foot 13 on the pedal 4 allows only one toe or toes with one toe.

It can also be provided that on the top 9 one or more troughs are formed so that the placement of a toe, in particular of the big toe 17 is improved and thus the positionally secure position of the big toe 17 on the top 9 is improved.

Such toe troughs can be designed individually with regard to the depth and the geometry.

In particular, in the embodiments, a dimensioned in the direction of the longitudinal axis B length of the pedal 4 by the length of the pedal parts arranged in series 6 and 7 educated.

The embodiments have been explained for use with a right foot. Of course, the embodiments may also be adapted for use with a left foot. For this purpose, in the embodiments in which the second pedal part are arranged on the left side in a plan view to the central longitudinal axis B, then the second pedal part arranged on the right side.

Claims (15)

Foot control device (2) for a surgical device (1), comprising a base body (3) and a pedal (4) which is movably mounted on the base body (3) relative to the base body (3), the pedal (4 ) has a first pedal part (6), which is pivotable about at least one pivot axis (A, F) relative to the base body (3), and depending on the pivoting movement of the first pedal part (6) at least one operating function of the surgical device (1) selectable and / or adjustable, characterized in that the pedal (4) comprises a second pedal part (7) which is arranged on the first pedal part (6) relatively movable to the first pedal part (6), wherein, depending on the relative movement of the second Pedal part (7) to the first pedal part (6) at least one operating function of the surgical device (1) is selectable and / or adjustable. Foot controller (2) after Claim 1 , characterized in that the second pedal part (7) is motion-coupled with the first pedal part (6) during the pivotal movement of the first pedal part (6). Foot controller (2) after Claim 1 or 2 characterized in that the second pedal part (7) is connected to the first pedal part (6) with a pivotal connection (11), the pivotal connection (11) having a pivotal axis (C) about which the second pedal part (7) relative to first pedal part (6) for selecting and / or setting the at least one operating function is pivotable. Foot controller (2) after Claim 1 or 2 , characterized in that the second pedal part (7) is a push button. Foot control device (2) according to any one of the preceding claims, characterized in that the second pedal part (7) in a width direction of the first pedal part (6) viewed as overlapping with the first pedal part (6) is arranged. Foot control device (2) according to one of the preceding claims, characterized in that the first pedal part (6) is adjustable in its length along a longitudinal axis (B) of the pedal (4). Foot controller (2) after Claim 6 , characterized in that the first pedal part (6) is formed such that a dimensioned in the direction of the length distance between the pivot axis (A, F), about which the pedal (4) to the base body (3) is pivotable, and one relative mobility between the pedal parts (6, 7) enabling connection (10) is variably adjustable. Foot control device (2) according to one of the preceding claims, characterized in that the second pedal part (7) is oriented along a longitudinal axis (B) of the pedal (4) which is oriented in the direction of the two pedal parts (6, 7) arranged in series, has a length which is less than one fifth of the length of the first pedal part (6). Foot control device (2) according to one of the preceding claims, characterized in that the second pedal part (7) is oriented along a longitudinal axis (B) of the pedal (4) which is oriented in the direction of the two pedal parts (6, 7) arranged in series, has a length corresponding to a length of a big toe (17) of a foot (13). Foot control device (2) according to one of the preceding claims, characterized in that the first pedal part (6) and the second pedal part (7) are arranged relative to one another such that in an actuating position of a foot (13) on the pedal (4) the foot ( 13) with respect to the length of the pedal (4) is simultaneously positioned above the first pedal part (6) and above the second pedal part (7). Foot controller (2) after Claim 10 , characterized in that the first pedal part (6) and the second pedal part (7) are arranged to each other, that in the operating position of the foot (13) on the pedal (4) the first pedal part (6) is actuated and without changing the Position of an entire foot region of the foot (13) between the heel (14) and the footpad (15) on the pedal (4) relative to the first pedal part (6), the second pedal part (7) is actuated. Foot control device (2) according to one of the preceding claims, characterized in that the second pedal part (7) has at least one plate. Foot control device (2) according to one of the preceding claims, characterized in that the second pedal part (7) has a first pedal part element (7a) and a separate second pedal part element (7b), and the two pedal part elements (7a, 7b) relative to the first pedal part (6) are arranged movable and depending on a relative movement of a Pedalteilelements (7a, 7b) to the first pedal part (6) at least one operating function of the surgical device (1) is selectable and / or adjustable. Surgical device (1) with a foot control device (2) according to one of the preceding claims. Method for operating a foot control device (2) for a surgical device (1), in which the foot control device (2) according to one of the previous Claims 1 to 13 is formed, and in which a foot (13) is set in an operating position on the pedal (4), and in this operating position at least one of the two pedal parts (6, 7) is actuated and without changing the position of an entire foot region of the foot ( 13) between the heel (14) and the footpad (15) on the pedal (4) relative to the first pedal part (6) simultaneously or with a time delay, the second pedal part (7) is actuated.

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