DRIVE DEVICE FOR A HAND-held DEVICE FOR LOCALLY PUNCTURNING SKIN AND HAND-held DEVICE

Description

[0001] The invention relates to a drive device for a handheld device for locally piercing human or animal skin, and to a handheld device. background

[0002] EP 2 954 925 A1 and EP 2 149 388 A1 relate to hand-held devices for repeatedly piercing human or animal skin.

[0003] KR 2018 0116824 A concerns a needle unit for a tattooing device with a quantitatively controllable ink supply independent of the ink level.

[0004] US 2021 / 353924 A1 describes a wireless tattooing device.

[0005] FR 2 972 933 A1 concerns a professional tattooing device.

[0006] These handheld devices are used to create localized skin punctures, particularly for introducing pigment into the skin for tattoos or permanent makeup, but also for applying medical or cosmetic agents to the skin via localized punctures. The handheld devices typically feature a drive unit formed by a housing. Inside the housing is a drive mechanism, such as an electric motor, which provides a rotary motion. A conversion mechanism transforms this rotary motion into a repetitive back-and-forth movement, which is then transmitted to a skin-piercing device to move one or more needles back and forth, creating a localized puncture in the skin.The skin piercing device is housed in a skin piercing module, which is either detachably or permanently connected to the housing of the drive unit, such that the drive force provided by the drive unit can be transmitted to move the one or more needles of the skin piercing device back and forth. Typically, the piercing needle tips of the one or more needles are extended and retracted through a front opening in the housing of the skin piercing module during the forward and backward movement of the needles.

[0007] When using the handheld device for different applications, there is often a desire to be able to adjust the extent or length of the back-and-forth movement of the lancing needles, for example, to change the piercing depth in the skin. For this purpose, it is known to set a stroke length between a forward and a rear endpoint of the back-and-forth movement of the lancing needles. Summary

[0008] The object of the invention is to provide an improved drive device for a handheld device for local skin piercing and an improved handheld device with which a safe and flexible adjustment of a stroke length of the repetitive forward and backward movement provided as the drive movement is made possible.

[0009] To solve this problem, a drive unit for a handheld device for locally piercing skin is provided according to independent claim 1. Furthermore, a handheld device for locally piercing skin is provided according to dependent claim 14. Embodiments are the subject of dependent subclaims.

[0010] According to one aspect, a drive device for a handheld device for locally piercing skin is created, which comprises the following: a housing that can be connected to a skin piercing module; a drive unit that is arranged in the housing and configured to provide a driving force by means of a rotary drive movement of a drive shaft whose axial direction is transverse to a working direction; a connecting element that is configured, driven by the driving force, to perform a back-and-forth movement with a stroke length along the working direction; a connection point that is formed on the connecting element and configured for connection to a skin piercing device of the skin piercing module;A conversion mechanism which, transmitting the driving force, is arranged between the drive shaft and the connecting component in the housing and has a pivot lever arrangement, wherein in the conversion mechanism the pivot lever arrangement is formed with a pivot lever with which the rotary drive movement of the drive shaft can be picked up and which pivots about a pivot point which is radially offset with respect to the drive shaft, and a connecting rod component is connected on one side to a tap on the pivot lever and on the opposite side to the connecting component; and a stroke adjustment device with which the tap on the pivot lever can be displaced to adjust the stroke length of the forward and reverse movement along the working direction.

[0011] According to another aspect, a handheld device for locally piercing skin is created with the drive unit and a skin piercing module, which is connected to the drive unit.

[0012] The drive device provides a drive force for transmission via the connecting component, such that this force can be transmitted via the connecting component to a skin piercing device of a skin piercing module, which can be connected to the drive device. This allows the skin piercing device's one or more piercing needles to move back and forth for localized piercing of the skin. The provided back-and-forth movement is characterized by a stroke length, i.e., the distance between the front and rear endpoints of the back-and-forth movement along the working direction. If the provided drive motion is transmitted unchanged to the skin piercing device along the working direction, this results in a back-and-forth movement of the skin piercing device with a working stroke length that corresponds to the stroke length provided by the drive device.The working stroke is performed by the skin piercing device, in particular by the piercing needles it contains, during operation. An optional stroke adjustment allows the working stroke length to be made either shorter or longer than the stroke length.

[0013] The stroke length provided by the drive unit can be changed using the stroke adjustment device. For this purpose, the pivot point on the swivel lever can be repositioned. This allows for simple and reliable adjustment of the stroke length provided by the drive unit for different applications involving local skin puncture.

[0014] The connection point can be designed for a hinged connection between the connecting component and the skin piercing device. For example, a ball-joint component can be provided on the connecting component in the area of ​​the connection point. The connection point can be arranged in a guide that extends in the working direction.

[0015] The drive device can be a mechanical drive device equipped with an electric motor, which can be, for example, an external rotor motor.

[0016] The drive device can include a measuring device associated with the stroke adjustment device and configured to detect different displacement positions of the contact point on the pivot lever. The measuring device acquires measured values ​​indicating these different displacement positions. For example, electronic measured values ​​can be acquired, such as those obtained using a potentiometer or other sensor whose different positions correspond to the various displacement positions of the contact point.

[0017] The housing of the drive device can be equipped with a display device that shows the various displacement positions of the tap. This display can incorporate and show the measured values ​​acquired by the measuring device. Alternatively or in addition to the measuring device, a mechanical display device can be provided, for example, a rotating component with indicator elements along its circumferential surface, which displays the various displacement positions of the tap on the pivot lever of the drive device to the user.

[0018] The stroke adjustment device can be a manual stroke adjustment mechanism. The manual stroke adjustment mechanism allows the user to manually adjust the stroke length by operating the pivot lever. For example, an adjustment wheel or a sliding element can be provided on the housing of the drive unit.

[0019] The stroke adjustment device can be an electronic stroke adjustment device. In conjunction with the electronic stroke adjustment, the repositioning of the contact point on the swivel lever can be effected by means of electronic control signals to the stroke adjustment device. This device can, for example, include a stepper motor with which the position of the contact point on the swivel lever can be moved to different positions relative to the swivel lever.

[0020] The electronic stroke adjustment device can be connected to a control unit such that stroke adjustment signals provided by the control unit can be transmitted to the electronic stroke adjustment device. The control unit can be located in or on the housing of the drive unit. Alternatively, the control unit can be separate from the drive unit and exchange control signals with the electronic stroke adjustment device via a wired or wireless connection. The control unit can be configured to actuate the electronic stroke adjustment device based on a user selection, thus setting a stroke length preselected by the user.

[0021] The stroke adjustment device can be configured such that the contact point on the pivot lever can be moved while the rotary drive motion is supplied via the drive shaft. In this embodiment, it is possible to change the stroke length of the forward and reverse movements during operation of the drive device, i.e., while the rotary drive motion is being supplied by the drive unit. This facilitates quick and flexible changes to the stroke length during operation of the drive device.

[0022] The stroke adjustment device can be configured to change the distance of the tap to the pivot point of the swivel lever when the tap is moved on the swivel lever.

[0023] The drive device can include a pickup device for capturing the rotary drive motion of the drive shaft. The pickup device comprises a rotating component that is rotationally fixed to the drive shaft and a first sliding component connected to the rotating component, which is displaceably arranged in a first sliding guide on the pivot lever. The first sliding component can be arranged on a crankpin that is positioned on the rotating component (eccentrically with respect to the drive shaft), for example, upright on a surface of the rotating component that is perpendicular to the axial direction of the drive shaft. The crankpin is arranged radially offset from the drive shaft. The rotating component can be part of the drive device, in particular the electric motor.

[0024] The rotary drive motion supplied via the drive shaft is tapped using the tapping device. As the drive shaft rotates, the rotating component rotates with it, causing the crankpin to rotate. The first sliding component (on the crankpin) in the first sliding guide on the pivot lever, connected to the rotating component, sets the pivot lever into a pivoting motion around its center of rotation due to the rotary drive motion of the drive shaft (and the rotating component as well as the eccentric crankpin). The first sliding component can be guided along a straight or curved path within the first sliding guide.

[0025] The contact point on the pivot lever can be formed with a second sliding element, which is displaceably arranged in a second sliding guide on the pivot lever. In this embodiment, the second sliding element is arranged in the second sliding guide formed on the pivot lever, in particular as a further sliding guide separate from the first sliding guide. The second sliding element can be moved back and forth along a straight or curved path within the second sliding guide.

[0026] A longitudinal direction of the first sliding guide and a longitudinal direction of the second sliding guide can form an acute angle. If at least one of the sliding guides is designed as a curved sliding guide, the longitudinal direction of the curved sliding guide corresponds to the straight line connecting the opposite ends of the sliding guide.

[0027] The connecting rod component and the second sliding component can pivot relative to each other about a pivot axis in the area of ​​the contact point. The connecting rod component and the second sliding component can be connected to each other, for example, by means of a pin bearing. The pivot axis can essentially run parallel to the axial direction of the drive shaft.

[0028] The stroke adjustment device can include an adjustment component in which a third sliding component, associated with the stroke adjustment device and connected to the tap, is displaceably arranged in a third sliding guide on the adjustment component. The adjustment component, as part of the stroke adjustment device, is displaceable to reposition the tap on the pivot lever for adjusting the stroke length. When the pivot lever performs a pivoting movement during operation, the third sliding component associated with the stroke adjustment device moves back and forth in the third sliding guide on the adjustment component. The third sliding guide can provide a straight or curved guide path for the third sliding component. The longitudinal direction of the third sliding guide can be essentially transverse to the drive shaft and / or the working direction.The adjusting component itself remains stationary after being moved to a desired position (in conjunction with a predetermined position of the tap on the swivel lever) when the drive unit is operated, unless the stroke length is to be changed, which is made possible by moving the adjusting component, optionally also during operation.

[0029] The connecting rod component and the third sliding component associated with the stroke adjustment device can be pivotable relative to each other around the pivot axis in the area of ​​the tap.

[0030] The conversion mechanism for transmitting the drive motion can be designed without a common axis of rotation between the second and third sliding components. Alternatively, a articulated connection can be provided elsewhere, or the coupling can even be omitted entirely. Instead, a different form of coupling can be used, such as a laterally offset sliding component, an elastic connecting rod component, or the like.

[0031] The working direction can be designed in the longitudinal direction of the housing.

[0032] The previously described configurations in connection with the drive device can be provided accordingly in conjunction with the handheld device for local skin piercing.

[0033] In the handheld device, the skin-piercing module, in which the skin-piercing device with one or more piercing needles is arranged in a module housing, can be detachably or permanently connected. If the skin-piercing module is detachably mounted to the drive unit, particularly to its housing, the skin-piercing module can be designed as a disposable module.

[0034] The housing of the drive device can provide a handpiece of the handheld device, which is gripped by the user with their fingers to guide the handheld device to locally puncture the skin.

[0035] The housing of the drive unit can be equipped with an adjustment device for needle protrusion. This needle protrusion adjustment device can be detached from the housing, optionally together with or separately from the skin-piercing module. The needle protrusion adjustment device allows adjustment of the extent to which the needle tips protrude beyond a front edge of the skin-piercing module housing when in the forward position. For this purpose, the needle protrusion adjustment device (NPD) can include an adjustment component that can be moved towards or away from the needle seats by rotating it around a pivot axis in the longitudinal direction of the housing. This changes the relative position of the front housing edge to the needle tips, thus adjusting the needle protrusion.

[0036] The mechanical drive unit, for example the electric motor, is supplied with electrical energy via a wired or wireless connection in order to provide the rotating drive motion during operation. Description of exemplary implementations

[0037] Further examples of implementation are explained below with reference to figures in a drawing. These figures show: Fig. 1 a schematic representation of a handheld device for locally puncturing skin; Fig. 2 a schematic perspective representation of the handheld device made of Fig. 1 ; Fig. 3 a schematic perspective view of the handheld device made of Fig. 1 , wherein a skin piercing module is detached from a drive device; Fig. 4 a schematic representation of the handheld device made of Fig. 1 , wherein part of a drive device housing is omitted; Fig. 5 a schematic perspective view of the handheld device made of Fig. 1Partially in section and without housing; Fig. 6 a schematic representation of a conversion mechanism of the handheld device according to Fig. 1 ; Fig. 7 a further schematic representation of the conversion mechanism from Fig. 6 with a first setting of a stroke adjustment device; Fig. 8 a further schematic representation of the conversion mechanism made of Fig. 6 with a second setting of a stroke adjustment device and Fig. 9 a schematic perspective view of elements of the conversion mechanism and a drive device; Fig. 10 a schematic perspective view of the hand device for local skin piercing, wherein the skin piercing module and handle are separated from the handpiece; Fig. 11 a schematic perspective view of the hand device made of Fig. 10 partially in section; Fig. 12 a schematic perspective view of the handheld device made of Fig. 11, wherein the grip is connected to the handpiece; Fig. 13 a schematic perspective view of the hand device made of Fig. 11 , wherein the skin piercing module and the handle are connected, Fig. 14 a schematic perspective detail view with a first setting for the needle protrusion and Fig. 15 a schematic perspective detail view with a second setting for the needle protrusion.

[0038] Figs. 1 to 3Figure 1 shows a handheld device 1 for locally piercing human or animal skin. The handheld device 1 has a drive unit 2 and a skin piercing module 3 connected to it, which is detachably or permanently connected to a housing 4 of the drive unit 2. If the skin piercing module 3 is detachably connected to the drive unit 2, it can be designed as a disposable module, so that the skin piercing module 3 can be disposed of after use. The housing 4 of the drive unit 2 as well as a module housing 5 of the skin piercing module 3 can be made of one or more parts.

[0039] The drive device 2 can form a handpiece 2a of the hand device 1 for locally piercing human or animal skin, which is held in the hand or fingers by the user during operation. The housing 4 then forms a handpiece housing, which is connected to the skin piercing module 3, in particular its module housing 5, to form the hand device 1.

[0040] The skin piercing module 3 is according to Fig. 3 detachable from the drive device 2 and thus interchangeable. In the example shown, the drive device 2, in particular the housing 4, and the skin piercing module 3, in particular the module housing 5, are connected to a handle 40 (see further explanations below). Figs. 10 to 15 ).

[0041] Fig. 4 and 5 Figure 1 shows schematic representations of the handheld device 1, where the handheld device 1 is shown partly without the housing 4 of the drive device 2 and partly in section.

[0042] For local skin puncturing, the skin puncturing module 3 has several puncturing needles 6 on a skin puncturing device 7, which is movably mounted in the module housing 5 of the skin puncturing module 3. During operation of the handheld device 1, the needle tips 8 of the puncturing needles 6 are extended and retracted through a front opening 9 of the module housing 5, such that the needle tips 8, at least in an extended position (not shown), protrude beyond a front housing edge 10, allowing the skin to be locally punctured by means of the needle tips 8. A dye and / or an active ingredient, which are to be applied to the skin in conjunction with the local puncturing, can be introduced to the puncturing needles 6 via a filling opening 11 on the module housing 5.Alternatively, a storage tank (not shown) can be provided on the housing 4 or on the module housing 5, which is in fluid communication with the piercing needles 6, so that a liquid can be transferred from the storage tank to the piercing needles 6.

[0043] To move the piercing needles 6 back and forth in a linear motion during operation of the handheld device 1, a rotary drive motion is provided by means of a drive unit 12, which is formed, for example, by an electric motor. A conversion mechanism 13, which is described below in particular with reference to the Figs. 6 to 9As will be explained in more detail below, a drive force is transmitted, the rotary drive movement is converted into a linear movement, and coupled via a connecting component 14 to the skin piercing device 7 with the piercing needles 6, so that during operation, the piercing needles 6 perform a forced back-and-forth movement along a working direction due to the coupled drive movement. In the illustrated embodiment, this direction runs longitudinally along both the housing 4 and the module housing 5. A connection point 14a (for example, on the handpiece side) is provided on the connecting component 14, which is designed for a (for example, detachable) connection to the skin piercing device 7, either directly or indirectly (mediated via one or more intermediate components).

[0044] In the conversion mechanism 13, a pivot lever 15 is pivotably mounted about a pivot point 16, which is arranged radially offset with respect to a drive shaft 17 of the drive device 12 (see figure). Fig. 7 and 8 ). In the example shown, the drive shaft 17 extends in an axial direction transverse to the working direction (i.e., to the longitudinal direction of the housing 4).

[0045] A rotating component 18 is mounted on the drive shaft 17 in a rotationally fixed manner, so that it rotates with the drive shaft 17. The rotating component 18 is part of a tap-off device 19, in which the rotating component 18 (for example, via a crank pin 18a; see Figure 18a) is connected to the drive shaft 17. Fig. 9) is connected to a first sliding component 20, which in turn is moved in a first sliding guide 21 on the pivot lever 15 when the drive shaft 17 is rotated. The first sliding component 20 is rotatably mounted on the crank pin 18a and moves back and forth in the first sliding guide 21 when the rotating component 18 is rotated with the drive shaft 17. In this way, the drive motion is transmitted to the pivot lever 15, which then pivots about the pivot point 16.

[0046] A tap 22 is arranged on the pivot lever 15, which is displaceable along a second sliding guide 23 on the pivot lever 15. A second sliding component 24 is received in the second sliding guide 23. The first and second sliding guides 21, 23 are formed as separate sliding guides on the pivot lever 15 and, in the example shown, enclose an acute angle.

[0047] When the pivot lever 15 pivots about the pivot point 16 due to the drive movement, a third sliding component 26, associated with a stroke adjustment device 25, moves in a third sliding guide 27 on an adjustment component 28 of the stroke adjustment device 25. The second sliding component 24 and the third sliding component 26 associated with the stroke adjustment device 25 are pivotably mounted relative to each other on a common pin bearing 28. A connecting rod component 29 is rotatably mounted on the pin bearing 28 and is thus connected to the tap 22. On an opposite side of the connecting rod component 29, it is connected to the connecting component 14, which in the illustrated embodiment is formed with a ball head 30. The connecting component 14 is designed for a pivotable connection with the skin piercing device 7 in the skin piercing module 3.The connecting rod component 29 transmits the drive motion as a linear back-and-forth movement to the skin piercing device 6. In the example shown, the connecting component 14 with the ball head 30 in the area of ​​the connection point 140 is received in a guide component 30a with a guide 31b and moves along the guide 31b during the back-and-forth movement (see figure). Fig. 7 and 8 ).

[0048] In the example shown, the (handpiece-side) connection point 14b is arranged on a rear extension 14c of a needle holder which carries the piercing needles 6 and is designed to cooperate with a module-side connection point 14b to transmit the forward and backward movement.

[0049] In particular according to Fig. 4A sheet metal component 32 is arranged between the pivot lever 15 and the adjusting component 28 in the area of ​​the pin bearing, which can form a connecting rod assembly with the connecting rod component 29.

[0050] As can be seen in particular from the Figs. 6 to 9 The adjusting component 28 of the stroke adjusting device 25 is arranged on a threaded rod 33, so that the adjusting component 28 can be displaced transversely to the working direction and to the longitudinal direction of the housing 4 by turning the threaded rod 33 with the aid of an adjusting wheel 34. In this way, the tap 22 on the pivot lever 15 is displaced, whereby in particular the distance to the pivot point 16 is increased or decreased. This results in the stroke length of the forward and backward movement provided at the connecting component 14 in the working direction being increased or decreased. Fig. 6 and 7Different positions for the adjusting component 28 along the threaded rod 33 are shown, which in turn lead to different positions of the tap 22 on the pivot lever 15, and thus to different stroke lengths.

[0051] By selecting an angle between the first and second sliding guides 21, 23 on the pivot lever 15, it is obtained that in a rear operating position (see Fig. 8 The second sliding guide 21 lies exactly transverse to the longitudinal axis along its entire length, which results in the rear reversal point remaining largely constant for all stroke settings. Complete constancy can be achieved by designing the second sliding guide 23 to be arc-shaped with a center point identical to that of the ball head 30 on the connecting component 14.

[0052] Figs. 10 to 15 further schematic perspective representations of the handheld device 1 are shown.

[0053] According to Fig. 10In the hand device 1, the skin piercing module 3, the handle 40 with handle elements 41 and the drive device 2, which here forms a handpiece 2a, are separable or detachable from one another. Fig. 11 The separate arrangement is partially shown in cross-section. Housing 4 forms a handpiece housing.

[0054] In order to functionally connect the handpiece 2a, i.e., the housing 4 (handpiece housing), the grip 40, and the skin piercing module 3, in the illustrated embodiment, a first mechanical connection is (at least partially) formed between the housing 4 of the handpiece 2a and the grip 40. Fig. 12The handle 40 with the grip elements 41 is attached to a front housing section 42 on the (handpiece) housing 4. For this purpose, the handle 40 has rearward-extending, spring-loaded locking elements 43, which in the example shown are formed by locking hooks and arranged circumferentially on the inside. The locking elements 43 engage positively with a circumferential element receptacle 44 on the inside of the housing section 42. In this arrangement, the handle 40 can (still) be detached from the housing 4 and thus from the handpiece 2a (and thus from the drive device 2) by removing the handle 40 again.

[0055] Then, according to Fig. 13The skin piercing module 3 is inserted into a receptacle 45 of the handle 40 and locked in place by means of a locking device 46, thus forming a rotationally fixed connection between the skin piercing module 3 and the handle 40. This establishes a second mechanical connection between the skin piercing module 3 and the handle 40. The formation of this second mechanical connection secures the handle 40 to the front housing section 42 of the (handpiece) housing 4, as the locking elements 43 are secured by the inserted skin piercing module 3, preventing them from disengaging from the connection with the inner element receptacle 44. This secures the first mechanical connection between the housing 4 of the handpiece 2a and the handle 40.

[0056] The handle 40 and the skin piercing module 3, which is rigidly connected to it, are rotatably connected to the (handpiece) housing 4, such that the module housing 5 (together with the handle 40) can be rotated or shifted into different rotational positions relative to the handpiece 2a (or drive device 2). During operation, the user can thus firmly grip the housing 4, i.e., the handpiece 2a, with their hand or fingers and, depending on the desired adaptation to different application scenarios, rotate the module housing 5 with the handle 40 relative to it, thereby also changing the relative position of the front opening 9 with respect to the handpiece 2a.

[0057] Fig. 14 and 15 show a detailed representation with attached handle 40 (comparable) Fig. 12Figure 1 shows an adjusting device 50 for adjusting a needle protrusion or needle projection (NPP). In the illustrated embodiment, this device has a longitudinally extending bolt 51, which is shown here as an example in a T-shape and has a toothed section 52 on its surface that engages with a locking element 53, which is pre-tensioned. To change the needle protrusion, the locking element 53 can be manually moved inwards (inwards) in a component receptacle 54. Fig. 14 and 15 downwards) are pressed (against a spring force) so that the bolt 51 is released for displacement relative to the locking component 53 in the working direction. Fig. 14 and 15The figures show different positions of the bolt 51 in relation to the locking component 53 and thus different settings for the needle protrusion. This changes as the handle 40, together with the skin piercing module 3 housed therein, is moved forward or backward in its relative position to the connection point 29 along the working direction, thereby changing (with a constant stroke length) the protrusion of the needle tip 8 in relation to the module housing opening 9.

[0058] The features disclosed in the foregoing description, the claims and the drawing can be important for the realization of the various embodiments, both individually and in any combination.

Claims

1. Drive device (2) for a hand-held device (1) for locally puncturing a skin, comprising - a housing (4) which can be connected to a skin puncturing module (3); - a drive device (12) which is arranged in the housing (4) and is configured to provide a drive force by means of a rotating drive movement of a drive shaft (17), the axial direction of which runs transversely with respect to a working direction; - a connecting component (14) which is configured, driven by the drive force, to perform a forward and backward movement with a stroke length along the working direction; - a connecting point (14a) which is formed on the connecting component (14) and is configured for connecting to a skin puncturing device (7) of the skin puncturing module (3); - a conversion mechanism (13) which, in a manner which transmits the drive force, is arranged between the drive shaft (17) and the connecting component (14) in the housing (4) and has a pivoting lever arrangement, wherein, for the conversion mechanism (13), - the pivoting lever arrangement is formed with a pivoting lever (15) with which the rotating drive movement of the drive shaft (17) can be tapped and which in the process pivots about a pivot point (16) which is offset radially with respect to the drive shaft (17), and - a connecting rod component (29) is connected, on one side, to a tap (22) on the pivoting lever (15) and, opposite, to the connecting component (14); characterized by - a stroke setting device (25) with which the tap (22) on the pivoting lever (15) can be displaced in order to set the stroke length of the forward and backward movement along the working direction.

2. Drive device (2) according to Claim 1, characterized by a measuring device which is assigned to the stroke setting device (25) and is configured to detect different displacement positions of the tap (22) on the pivoting lever (15).

3. Drive device (2) according to Claim 1 or 2, characterized in that the stroke setting device (25) is formed with a manual stroke setting device.

4. Drive device (2) according to at least one of the preceding claims, characterized in that the stroke setting device (25) is formed with an electronic stroke setting device.

5. Drive device (2) according to Claim 4, characterized in that the electronic stroke setting device is connected to a control device in such a way that stroke setting signals which can be provided by the control device can be transmitted to the electronic stroke setting device.

6. Drive device (2) according to at least one of the preceding claims, characterized in that the stroke setting device (25) is configured to change a distance of the tap (22) from the pivot point (16) of the pivoting lever (15) when the tap (22) on the pivoting lever (15) is displaced.

7. Drive device (2) according to at least one of the preceding claims, characterized by a tapping device for tapping the rotating drive movement of the drive shaft (17), wherein the tapping device has a rotating component (18) which is connected to the drive shaft (17) in a rotationally fixed manner, and a first sliding component (20) which is connected to the rotating component (18) and is arranged in a displaceable manner in a first sliding guide (21) on the pivoting lever (15).

8. Drive device (2) according to at least one of the preceding claims, characterized in that the tap (22) on the pivoting lever (15) is formed with a second sliding component (24) which is arranged in a displaceable manner in a second sliding guide (23) on the pivoting lever (15).

9. Drive device (2) according to Claim 8, characterized in that a longitudinal direction of the first sliding guide (21) and a longitudinal direction of the second sliding guide (23) enclose an acute angle.

10. Drive device (2) according to Claim 8 or 9, characterized in that the connecting rod component (29) and the second sliding component (24) are pivotable relative to one another about a pivot axis in the region of the tap (22).

11. Drive device (2) according to at least one of the preceding claims, characterized in that the stroke setting device (25) has a setting component (28) in which a third sliding component (26) which is assigned to the stroke setting device (25) and is connected to the tap (22) is arranged in a displaceable manner in a third sliding guide (27) on the setting component (28).

12. Drive device (2) according to Claims 10 and 11, characterized in that the connecting rod component (29) and the third sliding component (26) which is assigned to the stroke setting device (25) are pivotable relative to one another about the pivot axis in the region of the tap (22).

13. Drive device (2) according to at least one of the preceding claims, characterized in that the working direction is formed in the longitudinal direction of the housing (4).

14. Hand-held device (1) for locally puncturing a skin, comprising a drive device (2) according to at least one of the preceding claims and a skin puncturing module (3) which is connected to the drive device (2).