Patent Description:
This invention relates to a peripheral control device for simulating endoscopy procedures and in particular a portable peripheral control device for an endoscopy simulator.

The peripheral device inserts in the field of systems for learning endoscopic procedures which can also be defined as simulators.

The traditional concept of teaching endoscopy comprises the direct interaction between the student, such as a medical student, and the teacher, that is to say, the reference doctor, during an endoscopic examination performed on the patient to be treated, that is to say, one on one training.

The method allows a more effective learning for the student of the endoscopy procedures but, however, with several drawbacks such as, for example, an increase in the time needed for the performance of the examination, with possible complications, and discomfort for the patient, with consequent increase in the overall costs to be borne by the hospital. In order to overcome the above-mentioned drawbacks, endoscopic simulators have been developed which allow the students to carry out the endoscopic procedures in a controlled environment, without risks for the patients, allowing the student to train in endoscopy procedures in order to acquire the correct sensitivity in order to proceed onto patients.

Currently, four types of endoscopic simulators are substantially known: mechanical simulators, animal models, live or dead, computerised models and composite simulators, that is to say, mechanical models which have inherent animals parts, with or without the presence of electronic computers.

Only endoscopic simulators validated by clinical studies are currently present on the market.

The models which use live animals have in fact been abolished, since they caused unnecessary physical and psychological suffering for the animal, and they have been superseded by composite models which use mechanical parts assembled with organs which are no longer alive.

For example, some simulators have a part which faithfully replicates a human bust inside of which are housed organs derived from live animals. These composite models can be used to simulate a large range of medical procedures, such as gastroscopy, colonoscopy, haemostasis techniques, endoscopic mucosal and sub-mucosal resection, endoscopic retrograde cholangio-pancreatography, echo-endoscopy, enteroscopy with double balloon, percutaneous gastrostomy and others.

Although very effective, the composite models are very expensive, not very flexible, require a constant replacement of the organic parts and leave little room for errors.

The purely mechanical models, that is to say, without the use of organic part coming from live animals, overcome some of the above-mentioned drawbacks of the composite endoscopic models, but do not provide the same realism as the other models.

The computerised models, which allow particularly realistic simulations, were introduced for the first time in the <NUM>.

Since then, with the increasing development of electronic and information technology, these simulators have undergone an enormous technological development.

The advanced technology allows these simulators to use graphical endoscopic images displayed on the screen on the basis of the task of the student or on the basis of the difficulty of the procedure to be performed. The learning procedures can comprise movements of the accessories in real time and increasing difficulty with various scenarios.

There are prior art computerised simulators consisting of an integrated and autonomous console, equipped with screens and operating system. These simulators faithfully imitate the shape and the structure of an endoscope and the physical response of the body in which it is inserted, thanks to the feedback control. Some known simulators use actual endoscopes for medical use for their operation.

Disadvantageously, the known computerised endoscopic simulators, whilst being very faithful, are very complex, bulky, not easy to move and expensive, which are all features which have an adverse effect on the wide scale diffusion and the possibility of use by students outside hospital environments.

Moreover, the integration in the simulator of the processing units and of the control software makes it difficult to carry out any connections to the Internet and provide updates and use digital teaching platforms which are accessible online. These drawbacks limit the real possibilities of access by the students to the endoscopic simulators present in hospital facilities, which is incompatible with the teaching requirements to be provided to the students.

It has also been found that, during the teaching of novice students, the physical faithfulness of the known simulators to the real endoscopic devices is too accurate for the novice students.

In particular, this document discloses a portable peripheral control device for simulating endoscopy procedures, comprising a mounting element, i.e. a frame, and a control lever (number <NUM> in the drawings), constrained to the mounting element and reproducing a handgrip of a flexible endoscope for medical use, for instance an endoscope model Olympus GIF-HQ190. The control lever has a plurality of buttons and levers simulating corresponding means of real endoscopes for medical use. The device also features a movement device configured for simulating a movement of a tubular element (number <NUM> in the drawings) of a flexible endoscope. The device is configured for converting at least one actuation of the control lever into an electrical signal signifying the actuation. The device is also configured for converting at least one activation of the buttons and levers on the control lever into an electrical signal signifying the activation. The device is also configured for converting a movement of the movement device into an electrical signal signifying the movement. Signals are sent to a computer for elaboration.

<CIT> and <CIT> disclose other solutions known in the art.

The present invention relates to a portable peripheral control device for simulating endoscopy procedures as defined in the sole independent claim <NUM>.

In this context, one aspect of this invention is to provide a portable peripheral control device for simulating endoscopy procedures configured to be connected to a computer and which comprises a mounting element and a control lever, constrained to the mounting element, reproducing a handgrip of a flexible endoscope for medical use; the control lever has a plurality of actuation devices replicating corresponding actuating means presented by the handgrip of the flexible endoscope for medical use.

The peripheral control device being configured for converting at least one actuation of the control lever into an electrical signal signifying the actuation.

The peripheral control device is configured for converting at least one activation of the actuating means into an electrical signal signifying the activation.

The peripheral control device is being configured for converting a movement of the movement device into an electrical signal signifying the movement.

The peripheral control device comprises at least one output for the electrical signals.

According to an aspect of the invention, the peripheral device comprises a plurality of connectors for making available these outputs.

Advantageously, the peripheral control device structured in this way allows students to perform endoscopic simulation exercises in any environment, even in a domestic environment, at least for acquiring a basic dexterity, and it is easily portable, as it has reduced dimensions and weight.

According to an aspect of the invention, the invention relates to a simulator for endoscopy which comprises a peripheral control device according to one of the aspects indicated and a computer connected to the peripheral control device.

Advantageously, the peripheral control device according to the invention is an inexpensive simulator compared with the known simulators and consequently accessible to a vast number of users.

Further features and advantages of this invention are more apparent from the non-limiting description which follows of a preferred, non-limiting embodiment of a peripheral control device for simulating endoscopy procedures, as illustrated in the accompanying drawings, in which:.

With reference to the accompanying drawings, the numeral <NUM> generically denotes a portable peripheral control device for simulating endoscopic procedures.

The term "portable" means that the peripheral device <NUM> can be carried, can easily be moved and transported from one place to another, or does not require a fixed installation so can be used in any location where, as described in more detail below, it may be connected to a suitably programmed or programmable computer.

The peripheral control device <NUM> is configured to be connected to a computer "C".

In some embodiments the connection to the computer "C" is performed by a physical connection, for example a cable for transferring data, preferably USB type, and the peripheral control device <NUM> is configured for being connected to the above-mentioned cable.

According to alternative embodiments, the connection is carried out using a wireless data connection, such as, for example, WI-FI® or Bluetooth®, and the peripheral control device <NUM> comprises devices configured to establish a wireless data connection.

The peripheral control device <NUM> according to this invention comprises a control lever <NUM> configured to reproduce a handle or handgrip of a flexible endoscope for medical use equipped with respective actuating means 8a, 8b, 8c, 8d, <NUM>, "a", 8e, 8f.

The control lever <NUM> is connected to a respective mounting element <NUM>.

The mounting element <NUM> defines a supporting base which is stable during the handling of the control lever <NUM>.

The mounting element <NUM> has one or more suction cups 2a to allow the anchoring on a supporting surface.

The control lever <NUM> is connected to the mounting element <NUM> by a hinge <NUM>.

In the preferred embodiment, the hinge <NUM> allows rotations of the control lever <NUM> about its axis of rotation "A1" and variations of inclination of the axis of rotation "A1" relative to the mounting element <NUM>.

In at least one particular embodiment, the hinge <NUM> comprises an elastic joint 7a, preferably consisting of an elastic element, and a spherical coupling 7b.

The elastic joint 7a preferably consists of an elastic clip with a length of less than <NUM>.

The aim of the elastic joint 7a is to increase the freedom of movement of the control lever <NUM> for better simulating the movement of the handle of a flexible endoscope for medical use.

The control lever <NUM> comprises directional handles 8a configured for simulating the rotation of the tip of the endoscope and an element 8b for locking the positioning of the directional handles 8a.

The control lever <NUM> comprises one or more activating elements 8c configured for simulating the action of a blowing/washing valve and a suction valve 8c.

The control lever <NUM> has a channel <NUM> configured for receiving a bar "a".

The channel <NUM> is configured for simulating a proximal portion of an operating channel inside an endoscope for medical use, for example, the bioptic channel or the channel of the instruments, which are often coincident.

The channel <NUM> is designed to receive the bar "a" for simulating accessory devices of an endoscope for medical use.

The control lever <NUM> comprises one or more accessory pushbuttons 8d for simulating the selection of the accessory and simulating the actions on the accessory itself.

These actions can be combined with the advance of the bar "a" in the channel <NUM>.

The control lever <NUM> comprises one or more elements 8f for activating accessory activities, such as, for example, washing, current supply etc. The control lever <NUM> comprises a regulator 8e for simulating the rigidity of the structure of the endoscope.

The directional handles 8a, the element 8b for locking the positioning of the directional handles 8a, the activating elements 8c, the channel <NUM> configured to receive a bar "a", the accessory pushbuttons 8d, the activating elements 8f and the regulator 8e define the above-mentioned actuating devices of the lever <NUM>.

The peripheral control device <NUM> is configured for converting the movements of the control lever <NUM> relative to the mounting element <NUM> into first electrical signals "s1" and for transmitting them to the computer "C". The peripheral control device <NUM> comprises an outlet, schematically represented as a block <NUM>, for the signals "s1", which can therefore be transmitted to the above-mentioned computer "C".

More specifically, the movements of the control lever <NUM> transformed into electrical signals "s1" comprise the rotations of the control lever <NUM> about its longitudinal axis "A1" and the variations of inclination of the longitudinal axis "A1".

The peripheral control device <NUM> is configured for converting the movements of the control lever <NUM> into electrical signals "s2" and for transmitting them to the computer "C".

The peripheral device <NUM> comprises an outlet, schematically represented as a block <NUM>, for the signals "s2", which can therefore be transmitted to the above-mentioned computer "C".

Movements on the control lever <NUM> means the movements carried out by a user by means of the above-mentioned movement means 8a, 8b 8c, 8d, <NUM>, "a", 8e, 8f.

More specifically, with reference to the above, the peripheral control device <NUM> is configured for converting the movement of the bar "a" in the channel <NUM>, the rotation of the directional handles 8a, the movement of the locking element 8b, the activation of the movement pushbuttons 8c, the activation of the accessory pushbuttons 8d, the activating elements 8f and the regulator 8e, into electrical signals "s2".

The peripheral control device is configured to detect the presence of the bar "a" in the channel <NUM> and convert a first actuation of the bar "a" in the channel <NUM> in a first electrical signal "s2".

The peripheral control device <NUM> is configured for converting an actuation of the directional knob and/or of the locking element 8b into a second electrical signal "s2".

The peripheral control device <NUM> is configured for converting an actuation of the activating element 8f into a third electrical signal "s2".

The peripheral control device <NUM> is configured for converting an actuation of the regulator 8e into a fourth electrical signal "s2".

According to this invention, the peripheral control device <NUM> comprises a movement device <NUM> configured for simulating the functions and the physical behaviour of the tubular part of the endoscope for medical use. The peripheral control device <NUM> is configured for converting movements of the movement device <NUM> into electrical signals s3 and transmitting them to the computer "C".

The movement device <NUM> comprises a main element <NUM> and a main supporting body <NUM> of the main element <NUM>.

The element <NUM> replicates, as will be clarified, a flexible element of a real endoscope; in that sense, the element <NUM> is also referred to as a tubular element since the real endoscopy is hollow inside.

The supporting body <NUM> has a supporting base <NUM> preferably comprising a plurality of suction cups 5a for anchoring the supporting body <NUM> on a supporting surface.

It should be noted that in an embodiment illustrated, the supporting element <NUM> of the control lever <NUM> and the supporting body <NUM> of the movement device <NUM> define a single body <NUM>.

Alternatively, the supporting element <NUM> of the control lever <NUM> and the supporting body <NUM> of the movement device <NUM> are different from each other and physically separate.

According to this configuration, it is possible to anchor the supporting element <NUM> of the control lever <NUM> and the supporting body <NUM> of the movement device <NUM> on respective resting planes and at a distance determined by the user.

It should be noted, however, that, regardless of whether the supporting element <NUM> of the control lever <NUM> and the supporting body <NUM> of the movement device <NUM> are physically connected or separate, the computer "C" is configured to simultaneously process the electrical signals generated by the control lever <NUM> and by the movement device <NUM> for simulating the correct operation of an endoscope.

The term computer "C" is used to mean any computer, such as a personal computer, which able to process these signals "s1", "s2", "s3".

The processing may be carried out by means of software resident in the computer or also online according to known techniques.

Various embodiments of the shape of the movement device <NUM> are described below.

In general, the tubular element <NUM> is equipped with a main longitudinal axis of extension "A2", relative to its transversal extension.

According to the embodiments illustrated in <FIG>, the tubular element <NUM> is flexible since it is configured to undergo a bending of <NUM>° along its main axis of extension "A2", without breaking or plastic deformation.

Preferably, according to these embodiments, the tubular element <NUM> is made of elastomeric material.

In its preferred embodiment, the tubular element <NUM> has mechanical characteristics replicating the tubular part of a flexible endoscope for medical use.

As may be inferred from drawings, at least part of the tubular element <NUM> is positioned inside the supporting body <NUM> and at least a part of it is positioned outside it.

According to the embodiments illustrated in <FIG>, the tubular element <NUM> can be moved, manually by a user, inside and outside the supporting body <NUM>, along a direction parallel to its axis of extension "A2" (translation "T"), and can rotate about its main axis of extension "A2" (rotation "R"), simulating the movements which can be carried out by a doctor by means of the tubular part of an endoscope.

For this purpose, it has, located on an outer portion of the tubular element <NUM>, a gripping surface <NUM>, which favours the gripping of the tubular element <NUM> by the user to perform the movement along its main axis of extension "A2" or around it.

In the embodiments of <FIG>, <FIG>, <FIG> and <FIG>, the gripping surface <NUM> coincides with the outer surface of the tubular element <NUM>.

In the embodiments of <FIG> and <FIG>, the movement device <NUM> comprises a handle <NUM>, having the gripping surface <NUM> for moving the flexible element <NUM>.

According to the first embodiment illustrated in <FIG> and <FIG>, the tubular element <NUM> is a closed element, without free ends.

In other words, the tubular element <NUM> defines a closed path.

In other words, with reference to <FIG>, the tubular element <NUM> is ring-shaped.

With reference to Figure <NUM>, the tubular element <NUM> has a figure-of-eight shape.

Alternatively, the tubular element <NUM> can have any shape providing it is a closed element.

According to this variant embodiment, at least part of the tubular element <NUM> is housed inside the box-shaped body <NUM>.

More specifically, the supporting body <NUM> has two holes <NUM>, each for a respective branch of the tubular element <NUM>, for allowing the passage between the inside and outside of the supporting body <NUM>.

Still more specifically, the supporting body <NUM> has two holes <NUM> for the passage of the tubular element <NUM>, one upper and one lower relative to the supporting base <NUM>.

This embodiment substantially reduces the overall dimensions and allows a substantial structural simplification with respect to the classic configuration wherein the tubular part of an endoscope is an element with a length of approximately <NUM> metres.

In effect, thanks to its closed shape, the tubular element <NUM> can slide indefinitely inside the supporting body <NUM> without ever reaching the end stop.

In order to allow the movement of the tubular element <NUM> inside and outside the supporting body <NUM>, the supporting body <NUM> comprises a drum <NUM> rotatable about its own axis of rotation 15a.

The rotatable drum <NUM> has an outer surface which can be coupled to a portion of the tubular element <NUM> which is positioned on it, following the curvature.

Advantageously, the rotation of the rotatable drum <NUM>, about its own axis of rotation 15a, is constrained to the translation "T" of the tubular element <NUM> along its main axis of extension "A2" and is therefore a measurement of the above-mentioned translation.

The peripheral control device <NUM> comprises a first sensor 13a of rotation of the tubular element <NUM> about its main axis of extension "A2".

The first rotation sensor 13a is located inside the supporting body <NUM> and engages a portion of the tubular element <NUM>.

The peripheral control device <NUM> comprises a second sensor 13b configured for measuring the translation "T" of the tubular element <NUM> along its main axis of extension "A2", preferably by the measurement of the rotation of the rotatable drum <NUM>.

In a variant of the first embodiment, illustrated in <FIG>, the peripheral control device <NUM> has all the features described above and a second rotatable drum 15b, positioned inside the supporting body <NUM>, which can be coupled to a portion of the tubular element <NUM> which is positioned on it, following the curvature.

The two rotatable drums <NUM> and 15a keep the tubular element <NUM> under tension.

Advantageously, the tubular element <NUM> is preloaded and is not subject to compression instability.

A third embodiment, illustrated in <FIG>, is similar to the second solution described above.

Unlike the second solution, the movement device <NUM> comprises a handle <NUM>, having the gripping surface <NUM> for moving the flexible element <NUM>.

The handle <NUM> can be coupled to the tubular element <NUM> and is connected to it in such a way that a translation of the handle <NUM> is constrained to the translation "T" of the tubular element <NUM> along its main axis of extension "A2".

In this embodiment, the handle <NUM> allows enables the rotation of the tubular element <NUM> about its main axis of extension "A2".

Alternatively, the handle <NUM> is rotationally movable (rotation "R") about the axis of extension "A2", as in the embodiments of <FIG> and <FIG>. In this case, the first sensor 13a for measuring the above-mentioned rotation is positioned inside of the handle <NUM>.

The embodiments, illustrated in <FIG>, <FIG>, differ from the first in that the tubular element <NUM> has respective free ends at the two ends.

This variant is without the rotatable drum <NUM>, 15b.

According to this embodiment, the supporting body <NUM> has a single passage hole <NUM> for the single delivery of the tubular element <NUM> inside the supporting body <NUM>.

According to this solution, in order to measure the translation "T" of the tubular element <NUM> along its main axis of extension "A2", the peripheral control device <NUM> comprises a second sensor 13b located inside the box-shaped body <NUM> which engages a respective portion of the tubular element <NUM>.

The fourth embodiment has two variants, a "long" one and a "short" one. In the "long" variant, illustrated in <FIG>, the tubular element <NUM> is of a length comparable to that of the tubular part of an endoscope for medical use.

Preferably, the supporting body <NUM> has a rear passage 14a for the escape of an end portion of the tubular element <NUM>. In the "short" variant, illustrated in <FIG>, the tubular element <NUM> has a length substantially less than that of the tubular part of a gastric endoscope.

According to this variant, the supporting body <NUM> is free of the rear passage 14a for the escape of an end portion of the tubular element <NUM>.

A fifth embodiment, illustrated in <FIG>, can be likened to the "short" variant described above, with the difference that the tubular element <NUM> consists of a rigid rod, preferably with a length substantially less than that of the tubular part of an endoscope for medical use. The above-mentioned rod is rigid inasmuch that it does not undergo appreciable deformations under force conditions which are created in a normal endoscopic simulation.

In this fifth solution the supporting body <NUM> comprises inside it a guide <NUM> shaped to match the tubular element <NUM> to allow the translation "T" and/or the rotation "R".

In a sixth embodiment, illustrated in <FIG>, the supporting body <NUM> comprises a supporting bar 3a, rigid and integral with it, preferably with a length substantially less than that of the tubular part of an endoscope for medical use.

According to this embodiment, the movement device <NUM> consists of a body having an inner coupling surface shaped to match an outer surface of the supporting bar 3a.

The movement device <NUM> also has an outer surface defining the gripping surface <NUM>.

The gripping surface <NUM> is defined by a knob <NUM>.

According to this variant embodiment, the handle <NUM> is mounted on the supporting bar 3a and is slidably movable along a longitudinal axis "A2" (translation "T").

Preferably, the handle <NUM> is rotationally movable about the above-mentioned longitudinal axis "A2" (rotation "R").

In this embodiment, the handle <NUM> comprises the first sensor 13a for measuring the rotation "R" of the movement device <NUM> around the supporting bar 3a and the second sensor 13b for measuring the translation "T" of the movement device <NUM> along the supporting bar 3a. Advantageously, in all the embodiments described above, the peripheral control device <NUM> is configured to detect and/or measure movements of the movement device <NUM> and convert them into electrical signals "s3" and transmit them to the computer "C".

The first sensor 13a is configured for converting the rotation of the gripping surface <NUM> into a first electrical signal "s3".

The second sensor 13b is configured for converting the translation of the gripping surface <NUM> into a second electrical signal "s3".

More specifically, it measures the translation "T" which can be carried out by a manual force exerted on the gripping surface <NUM> along an axis of translation, preferably coinciding with the main axis of extension "A2" of the tubular element <NUM>, by means of the second sensor 13b.

Similarly, the peripheral control device <NUM> measures the rotation "R" which can be actuated by a manual twisting applied on the gripping surface <NUM> about the above-mentioned axis of translation by means of the first sensor 13a.

Preferably, the peripheral control device <NUM> according to the embodiments illustrated comprises feedback devices <NUM> configured to apply a response force to a manual movement of the flexible element <NUM>. The above-mentioned response force simulates, in use, a physiological response to the insertion of an endoscope for medical use in an organism.

According to the embodiments wherein the tubular element <NUM> is shorter than the tubular part of an endoscope for medical use, or in any case the maximum range of the movement device <NUM> is less than the necessary, the peripheral device <NUM> comprises a suspension control <NUM>, preferably positioned on the gripping surface <NUM>.

The suspension control <NUM> can preferably suspension be operated manually by the user.

Advantageously, it is configured for temporarily suspending the feedback forces on the flexible element <NUM>.

It also makes it possible to modify the electrical signals "s3" in such a way that the computer "C" can ignore any movement of the movement device <NUM> performed whilst the suspension control <NUM> is activated.

The purpose of the suspension control <NUM> is to allow a withdrawal of the flexible element <NUM> if this has reached the end.

The computer "C" is configured to provide, using display means connected thereto, the response generated by the processing of the electrical signals it has received.

The computer "C" is configured to be connected into the Internet by means of a data connection.

The invention achieves the set aim by overcoming the disadvantages of the prior art.

In fact, the peripheral control device <NUM>, effectively simulates the mechanics of an endoscope for medical use and is therefore suitable for basic level teaching. At the same time, thanks to the structural reconfiguration with respect t the known simulators, is it is considerably less expensive, compact and portable.

In effect, the peripheral control device <NUM> as such has a low cost and is simple in its architecture.

The outlets <NUM>, <NUM>, <NUM> make it possible to connect the peripheral device <NUM> to a any external calculator "C" which will be made able to process the signals s1, s2, s3 coming out of the peripheral device <NUM>.

In <FIG> the numeral <NUM> denotes a simulator for endoscopy according to this invention.

The simulator <NUM> comprises a portable peripheral control device <NUM> and the computer "C".

The computer "C" is configured to simultaneously process the electrical signals "s1", "s2", "s3" generated by the control lever <NUM> and by the movement device <NUM> and simulate the operation of a real endoscope.

As illustrated, by way of example, the computer "C" comprises a plurality of inputs C1, C2, C3 for connection to the outputs <NUM>, <NUM>, <NUM>, according to, for example, the methods mentioned above.

In one embodiment, the simulator <NUM> comprises a simulation software resident in the computer C.

In one embodiment, the operation of the computer C is subject to a relative online connectivity, for example thanks to a simulation software which is accessible online.

Such a simulator is "portable" since, in practice, the peripheral device <NUM> can be easily transported and connected to any computer or PC.

This invention therefore provides a peripheral control device simulating endoscopic procedure suitable for a wide scale diffusion and home learning. Moreover, thanks to its connectivity, this invention can be efficiently used for connection to any personal computer, this aspect facilitating software updating and allowing an online platform to be created for teaching use of the endoscope, with, if necessary, tutorials and evaluation systems, and therefore reducing the time which skilled surgeons must dedicate to the basic teaching.

Unlike known simulators, the peripheral device and the calculating capacity of the computer are not integrated into a single instrument but are separate from each other, giving the user the possibility of connecting the peripheral control device to the most convenient or preferred computer.

Claim 1:
A portable peripheral control device (<NUM>), for simulating endoscopy procedures, comprising:
- a mounting element (<NUM>);
- a control lever (<NUM>), constrained to the mounting element (<NUM>) and reproducing a handgrip of a flexible endoscope for medical use, the control lever (<NUM>) having a plurality of actuating means (8a, 8b 8c, 8d, <NUM>, "a", 8e, 8f) replicating corresponding actuating means presented by the handgrip of the flexible endoscope for medical use,
- a movement device (<NUM>) configured for simulating a movement of a tubular element of a flexible endoscope;
the peripheral control device (<NUM>) being configured for converting at least one actuation of the control lever (<NUM>) into an electrical signal "s1" signifying the actuation,
the peripheral control device (<NUM>) being configured for converting at least one activation of the actuating means (8a, 8b 8c, 8d, <NUM>, 'a', 8e, 8f) into an electrical signal "s2" signifying the activation,
the peripheral control device (<NUM>) being configured for converting a movement of the movement device (<NUM>) into an electrical signal "s3" signifying the movement,
the peripheral control device comprising at least one output (<NUM>, <NUM>, <NUM>) for the electrical signals "s1", "s2" "s3",
characterized in that the actuating means comprise a regulator (8e) for simulating the rigidity of the flexible endoscope; the peripheral control device (<NUM>) being configured for converting an actuation of the regulator (8e) into a fourth electrical signal "s4", and
in that the actuating means comprise at least one directional knob (8a) configured to allow a simulation of a rotation of the tip of the flexible endoscope and a locking element (8b) of the directional knob (8a); the peripheral control device (<NUM>) being configured for converting an actuation of the directional knob and/or of the locking element (8b) into a second electrical signal "s2".