EP3429537A1

EP3429537A1 - Massage device for pressure wave massage

Info

Publication number: EP3429537A1
Application number: EP17710956.8A
Authority: EP
Inventors: Michael Pahl
Original assignee: Fun Factory GmbH
Current assignee: Fun Factory GmbH
Priority date: 2016-03-17
Filing date: 2017-03-16
Publication date: 2019-01-23
Anticipated expiration: 2037-03-16
Also published as: US20190083354A1; CN109862862B; RU2738992C2; RU2018134139A; DE102016105019B3; EP3429537B1; WO2017158107A1; RU2018134139A3; CN109862862A

Abstract

The invention relates to a massage device (1) for massage by means of pressure waves, comprising a housing (2) with a grip section (4) and a massage section (6), at least one first chamber (8, 10) comprising an opening (12) in the massage section, leading towards the outside, and a drive device (30) for modifying the volume (V1) of the first chamber (8), the drive device (30) comprising at least one coil element (32, 34) and at least one movably guided magnetic core (38) arranged parallel to the coil element (32, 34), for acting on the first chamber (8).

Description

Massage device for pressure wave massage

The invention relates to a massage device for massage by means of pressure waves, comprising a housing with a handle portion and a massage portion, at least a first chamber having an outwardly opening in the massage section, and a drive means for varying the volume of the first chamber.

For indirect stimulation of erogenous zones, and in particular of the clitoris, conventional vacuum devices are used to stimulate the erogenous zones of the subject without direct contact with the main area to be stimulated. For example, vacuum pumps for the female primary or secondary genitalia are known, which usually have a suction cup for placement and a hand pump. For example, the negative pressure exerted on the clitoris with this type of device creates a negative pressure in the clitoris itself, which is usually lower than the systolic blood pressure. This pressure difference leads to an enlargement of the clitoris and / or stimulates blood flow in the affected area. This clitoral vascular blood flow serves to stimulate pleasure by increasing the sensitivity as well as the optical and haptic manipulation. Also, the better blood flow leads to increased leakage of vaginal moisture, which makes the stimulation more pleasant. However, the manual operation of the hand pump is often annoying or disturbing. In addition, it can also with this device category by the prolonged or uninterrupted application of negative pressure to habituation effects, which limit the effectiveness of the device in the long run. In addition, a mere increase in blood flow in the clitoris is often not enough to reach the climax; Thus, vacuum pumps are often used only as a prelude to reach the Klimax with a subsequent direct (pressure) massage of the erogenous zone.

Instead of the manually operated vacuum pump increasingly electrically driven vacuum pumps are used. As an example, WO 2006/058291 A2 discloses a device for sexual therapy, the device consisting of a tubular suction chamber for the clitoris, an electrical vacuum source (vacuum pump) and a plurality of air flow openings. The sucked moist air leads to contamination of the fluidically subsequent vacuum arrangement, such as the vacuum pump. Thus, such arrangements with vacuum pumps may be problematic in terms of their hygiene, since the vacuum pump and the associated valves or ventilation components often have dead spaces or dead angles and / or are difficult to clean. Further, the device serves the therapy of the blood vessels of the clitoris, and not the stimulation until sexual climax.

US 6,099,463 A discloses a device for stimulating the clitoris with a tubular suction chamber, a vacuum source or a vacuum pump and a plurality of valves with which the size of the vacuum is regulated. The vacuum can also be applied in cyclic form in order to achieve a stimulation effect, whereby in this device due to the application of a sustained vacuum habituation effects are to be expected. Again, there are the above-mentioned disadvantages of hygiene and dehydration of the skin area to be stimulated. Likewise, the printing arrangement with multiple valves, vacuum pump, etc. is relatively complex.

US 6,464,653 B1 discloses therapeutic devices and methods which produce clitoral flushing by means of a vacuum generated by a vacuum pump to assist in the treatment of clitoral disorders. By means of a control valve or modulator, which can be covered with the finger accordingly, the height of the vacuum in the suction chamber is manually adjusted or varied. This requires the user's attention and may be distracting or distracting. Also, this relatively complex device with other valves on the above-mentioned disadvantages of hygiene and dehydration, wherein the Device also serves long-term therapeutic purposes and not short-term sexual stimulation.

WO 2008/028076 A2 discloses a therapeutic device for women, which primarily serves the treatment of sexual disorders. The device includes a combination of indirect stimulation using a vacuum chamber and direct stimulation using mechanical vibrators and oscillators.

In this therapeutic device, the negative pressure is used to increase the blood flow in the clitoris, while the actual stimulation or massage of the skin area takes place by means of direct mechanical vibrations / oscillations. For example, a suction cup for placement on the skin area to be stimulated is internally connected to a motor via a mechanical connection. The suction cup is extended by the motor after activation of the device, whereby the volume of the suction cup increases. The resulting volume of the suction cup and thus the amount of vacuum can be adjusted by means of control elements on the device. The displaced by the suction in the device air is discharged through a pipe back to the outside. In this device, the vacuum has only a supporting function, while the actual stimulation is done directly, which also entails the disadvantages of a direct stimulation explained above.

US 2013/0012769 A1 discloses a device in which a pulsating overpressure for stimulation is used as an air pressure massage. Thus, a pump or a compressor generates a pulsating overpressure, which is directed by means of a nozzle to the erogenous zone to be stimulated. In this device, the affected area of the skin dries up or down disadvantageously. Likewise, there is usually a temperature difference between the temperature of the supplied air and the temperature of the skin to be stimulated, which may be distracting under certain circumstances. Also occur in this device, the above-mentioned problems of hygiene, in which case any pathogens or germs or other contaminants in the device are also still transported directly to the genital area of the user. Thus, the devices of the prior art have the common drawback that the complexity of the negative pressure or pressure-generating arrangements can be high and this device can have hygienic problems. Such a massage device is basically known from WO 2015/039787 A1, which claims the priority of DE 10 2013 1 10 501. The erogenous zone stimulation device disclosed therein, in particular for the clitoris, has a pressure field generating device, with at least one first chamber, and at least one second chamber with at least one opening for placement on a body part, and at least one connecting element, which is the first chamber connects to the second chamber, and a drive unit which changes the volume of the first chamber such that a stimulating pressure field is generated via the connecting element in the second chamber, and a control device which drives the drive unit. The drive unit is designed as an electric motor and drives via an axis by means of an eccentric, or by means of a connecting rod, the first chamber such that the volume of the first chamber is changed according to the rotation of the axis of the drive unit.

The disadvantage of this is the relatively complicated structure and the limited movement and thus limited possibility of vibration generation.

The object of the present invention is to provide such a massage device, which is simpler in construction and yet can produce a higher variety of different vibrations.

According to the invention this object is achieved in that the drive device has at least one coil element and at least one parallel to the coil element slidably guided magnetic core for acting on the first chamber.

If an electrical current is applied to the coil element, a magnetic field is formed which cooperates with the magnetic core such that it is moved parallel, preferably coaxially, to the central axis of the coil element. By appropriate loading of the coil element with electric current, a back-and-forth movement of the magnetic core can thus be brought about. The to-and-fro motion, ie a vibration in the axial direction, can be influenced both in frequency and in amplitude by corresponding excitation of the coil element. Thus, a large variety of vibrations can be generated, wherein due to the action of the magnetic core on the first chamber, the volume of the first chamber is varied according to the movement of the magnetic core. This results in a fluid flow out of and into the first chamber and consequently a fluid flow out of the opening or in the opening into it, which corresponds to the excitation of the coil element. Consequently, a pressure field is formed in the chamber due to the volume change of the chamber, and the exiting pressure waves can advantageously be used for the massage of certain parts of the body, in particular of the female clitoris. Such a pressure field is, for example, a time-varying field of media pressures, which at times has overpressures and temporary negative pressures, where a negative pressure is a medium pressure which is below the reference pressure, and an overpressure is a medium pressure which is above the reference pressure. As the medium is particularly gaseous and / or liquid medium in question, such as air or water. The massage device can be used as beneficial as taking a bath in the bath or under the shower.

In a first preferred embodiment, the first chamber has a first chamber wall, and the magnetic core is mechanically coupled to at least one actuating portion of the first chamber wall. The magnetic core is preferably mechanically coupled to the actuating portion of the first chamber wall so as to change the volume of the chamber when moving. The actuating portion may be a part of the chamber wall, such as a flexibly formed portion. The chamber wall may be formed entirely of a flexible material and the magnetic core act on this flexible chamber wall. In a preferred embodiment, the actuating portion is formed as a membrane. The magnetic core acts in this embodiment on the membrane, which is preferably resiliently connected to the chamber wall. The membrane itself may be formed substantially rigid and is coupled via an example annular spring portion with the remaining chamber wall of the first chamber. The chamber wall of the first chamber can be made substantially rigid overall, for example, of a plastic material.

In a particularly preferred embodiment, a direction of movement of the magnetic core is aligned substantially perpendicular to the actuating portion of the first chamber wall. As a result, the stroke of the magnetic core is transferred to a maximum volume change of the chamber and can be used very effectively. The effectiveness of the device is thereby increased. According to a further preferred embodiment, the actuating section has a surface A1 on the chamber inside of the first chamber, and the chamber inner side has a total surface A2, wherein a ratio of A1 / A2 in a range from 0.1 to 0.8, preferably 0, 1 to 0.7, more preferably 0, 1 to 0.5, more preferably 0, 1 to 0.4, further preferably 0.1 to 0.3, further preferably about 0.2. It is desirable to achieve the largest possible change in volume of the first chamber with a small stroke of the magnet. As a result, a very rapid response of the massage device is achieved, and the massage device is overall very efficient. It is also advantageous in this case that due to a small stroke, with which a large change in volume is achieved, only slight inertial forces act on the massage device, as a result of which a shaking or vibrating of the massager on the handle is hardly or hardly noticed. Furthermore, this also reduces noise.

Particularly preferably, the drive device has a stroke of about 1 mm to about 25 mm. Also preferred are a stroke in a range of 1 mm to 20 mm, 1 mm to 15 mm, 1 mm to 10 mm, 3 mm to 7 mm, particularly preferably about 5 mm. It is preferable not to move the magnetic core too much, i. not to make the stroke too large, since the massaging device then vibrates noticeably as a whole by an operator and also noise can be caused. In a preferred embodiment, the magnetic core has a mass in a range of 2 to 15 grams, preferably 3 to 10 grams, more preferably 4 to 8 grams. Vibration of the toy should be prevented during operation as possible. The magnetic core should as far as possible drive the chamber alone or change its volume, but do not cause the toy to vibrate due to its inertia during operation. It has been found that the vibration of the toy can be kept small in a magnetic core having a weight in the said range, while still an effective action on the chamber can be achieved.

The total weight of the massage device is preferably in the range of 100 grams to 500 grams, preferably 100 grams to 400 grams, more preferably 100 grams to 300 grams, more preferably 100 grams to 200 grams. The total weight of the massage device is preferably in the range of 200 grams to 500 grams, preferably 200 grams to 400 grams, more preferably 200 grams to 300 grams. The total weight of the massage device is preferably in the range of 300 grams to 500 grams, preferably 300 Grams to 400 grams. The total weight is highly dependent on the exact configuration of the massage device and the functional sizes. For example, it is also conceivable to additionally provide a vibration drive in order to additionally be able to perform a clitoral massage. Such massage devices tend to be heavier.

In a preferred development, a ratio of the mass of the magnetic core (m1) to the mass of the entire massaging device (m2) is preferably in a range of 1: 6 to 1: 250, preferably 1: 10 to 1: 250, more preferably 1: 20 to 1: 250, more preferably 1:50 to 1: 250, further preferably 1: 100 to 1: 250. The magnetic core should as far as possible drive the chamber alone or change its volume, but do not cause the toy to vibrate due to its inertia during operation. It has been found that the vibration of the toy can be kept small in such weight ratios in the said area, while still an effective action on the chamber can be achieved. In a particularly preferred embodiment of the invention, the magnetic core has at least two permanent magnets, which are arranged in opposite polarity. As a result, the magnetic field of the magnetic core is formed symmetrically overall.

According to two coil elements are preferably provided, which are preferably energized in opposite directions. Thus, a symmetrical arrangement is achieved on the whole, and the magnetic core can be held in a simple manner in a central position and moved out of this both in one direction and in the other. Of course, two coil elements for a magnetic core with only one permanent magnet can be used, or any other combinations, such as three coil elements with two permanent magnets, or even four permanent magnets with a coil or the like.

An uncontrolled coming out of the magnet from the coil element is thus prevented. In addition, the provision of end stops for the magnetic core is not required. This, too, can in turn reduce the development of noise since the magnetic core does not mechanically strike against end stops during a movement. In a further preferred embodiment, the permanent magnets each have a mass in a range of about 1gr to about 10gr and / or a magnetic flux density in a range of 0.38T to 0.4T. Preference is given to neodymium magnets. Before- These have a diameter in a range of 5mm to 15mm and an axial length in a range of 3mm to 5mm.

Furthermore, it is preferable that the coil element has a flux density in a range of 0.13mT to 500mT. This depends on the length of the coil and the number of turns. It has been found that about 50 to 200 turns, in particular 100 turns at an axial length of about 4mm to about 10mm, in particular 10mm is a well-suited coil. Here, the flux density is preferably about 13mT.

According to a preferred development of the magnetic core is arranged in a housing, which is preferably coupled to a gear rod, which is provided for acting on the first chamber. The magnetic core is protected within the housing, and the housing is preferably for guiding the magnetic core relative to the coil element. For example, the coil element can be arranged around a tube, such as a plastic or cardboard tube, and the housing is adapted in its outer dimension of the inner diameter of the tube, so that the magnetic core can lead substantially coaxially to the central axis of the coil element. The housing extends on one side into a gear rod, which is preferably integrally formed on the housing. The transmission rod is intended to act on the first chamber.

The housing is designed in a variant as a thin-walled sleeve, for example as a shrink tube. In the event that the magnetic core has two or more permanent magnets, these are preferably arranged together in the housing and are held by this at least partially. Although not absolutely necessary, the housing preferably completely surrounds the magnetic core. In the case of the sleeve as a housing can also be provided that two front ends of the magnetic core are exposed.

Preferably, in the case where the magnetic core has two or more permanent magnets, they are separated from each other by a separator. This simplifies the assembly significantly. The permanent magnets are arranged opposite to each other and therefore helps the separator while the attachment of the permanent magnets together to facilitate. The separating element is preferably formed from a plastic material and about a short pin, attached to the two front ends in each case a permanent magnet, for example, is glued. Preferably, the gear rod is coupled to the actuating portion. The coupling can be realized for example via a mechanical connection, such as a universal joint, a simple screw or a bond. Particularly preferably, the gear rod is integrally connected to the actuating portion of the chamber. As a result, a particularly simple construction is achieved, which on the one hand provides an integrated drive device, on the other hand, production technology, for example by means of injection molding is easy to produce. In addition, there are few interference-prone coupling points, and a separate assembly of individual elements can be omitted.

According to a particularly preferred embodiment, the massage device further comprises a second chamber, wherein the first chamber is an inner chamber and the second chamber has the outwardly leading opening, and fluidly connected to the first chamber (8). This results in a division of the two chambers, wherein the first inner chamber is coupled to the drive means, and the second chamber has the outwardly leading opening. As a result, the inner chamber is protected, so that the drive is protected.

In a preferred embodiment, the second chamber has a substantially funnel-shaped shape and widens toward the opening. The opening is the outward opening in the massage section. Such a funnel-shaped configuration serves in particular to reinforce the pressure waves, as is also known with horns. As a result, the pressure wave is widened and can be used in a larger area for massage.

In a preferred embodiment, the first and second chambers are coupled to each other via a connecting portion, which has a smaller cross section than the opening. Preferably, the connecting portion has a smaller cross-section than the first chamber. The cross section is preferably measured at the widest point. Alternatively, average cross sections are compared. This means that fluid must first flow from the first chamber through the relatively narrow connection portion until it enters the second chamber. The connecting portion may be formed as a tube or as a constriction between the two chambers, with a small axial extent. As a result, a flow rate increase is achieved in the connecting portion, whereby a relatively high pressure pulse can be applied to the medium in the second chamber even with a small change in volume of the first chamber. Furthermore, it is preferred that the massaging device has a control for controlling the drive means, for displacing the magnetic core into a predetermined vibration having a predetermined vibration profile. The controller preferably has a memory unit with a plurality of prestored preset vibration profiles. Furthermore, an energy source in the form of a rechargeable accumulator is preferably provided, by means of which the coil elements can be supplied with electric current. The controller is preferably coupled to at least one control knob on the handle portion of the massage device. Preferably, at least two control buttons are provided. For example, a control knob is provided to turn the massage device on and off and a second control knob to select a predetermined vibration profile from the plurality of stored predetermined vibration profiles.

The invention will be explained in more detail with reference to an embodiment with reference to the accompanying figures. Showing:

1 shows a schematic cross section through a massage device according to the invention;

FIGS. 2A to 2C show three vibration profiles;

3 shows a schematic cross section through a further massage device according to the invention;

4 shows a schematic cross section through a drive device according to FIG.

a second embodiment; and

5a, 5b show two views of a bobbin of Fig. 4th

A massage device 1 has a housing 2 with a grip section 4 and a massage section 6. In the housing 2, a first chamber 8 and a second chamber 10 are formed according to this embodiment. It should be understood that embodiments with only one chamber are also preferred.

The second chamber 10 has an opening 12 here. The opening 12 is limited in this embodiment by a lip 14 which is formed of a soft and supple material. In embodiments with only one chamber is the Opening 12 is provided on the first chamber 8. Preferably, substantially the entire massage section 6 of the massage device 1 is formed of a soft and conformable material, such as a medical silicone. A diameter D1 of the opening 12 is chosen so that it can be placed in a pleasant manner on the female genital organ, in particular on the clitoris. The opening 12 can also have an elongated to oval shape and does not necessarily have to be circular.

The second chamber 10 has a chamber wall 16 which has an overall funnel-shaped shape, widening towards the opening 12. Thereby, the second chamber 10 is formed corresponding to a horn for amplifying waves.

The first chamber 8 also has a chamber wall 18. The chamber wall 18 has an inner total area A1.

The first chamber 8 is fluidly connected to the second chamber 10 via a connecting portion 20. The connecting portion 20 is formed in this embodiment as a constriction. The chamber walls 18 and 16 of the first chamber 8 and the second chamber 10 are integrally formed together. As a result, there is no seam between the two chamber walls 16, 18, whereby a waterproofness of the massage device 1 can be ensured in a simple manner.

The chamber wall 18 of the first chamber 8 has an actuating portion 22, which is designed here as a membrane 24. The membrane 24 is connected to the chamber wall 18 via an elastic suspension 26, which is also integrally connected to the chamber wall 18. The suspension 26 is also integrally connected to the membrane 24, so that a total of the first and second chambers 8, 10 with respect to an interior 28 of the massage device 1 are completed fluid-tight. This prevents that fluid, such as water, can get into the interior 28. This contributes to the fact that the massage device 1 can also be used underwater.

The massage device 1 further has a drive device 30 for changing a volume V1 of the first chamber 8. The drive device 30 has two coil elements 32, 34. The coil elements 32, 34 are arranged around a guide tube 36 around. Although two coil elements 32, 34 are shown in the figure, embodiments with only one coil element are also preferred. To change the direction of movement of the magnetic core then the magnetic field of the coil is electrically reversed polarity to deflect the core proportionally. Conceivable and preferred are also three or more coil elements, in which case the driving effort increases. A coupled cascading of two or more drive devices, which are arranged coaxially behind one another, or parallel next to one another, is preferred depending on the application.

The guide tube can be made of plastic or cardboard material or the like. It should be understood that the guide tube is not mandatory. It can just as easily be dispensed with, if sufficient guidance is provided in another way, for example by coil element 32, 34 itself. Within the guide tube 36, a magnetic core 38 is guided, the magnetic core 38 is embedded according to this embodiment in a housing 40 whose outer diameter is slightly smaller than the inner diameter of the guide tube 36. The housing 40 has a substantially cylindrical shape and is coaxial with the axis A, which is the central axis of the coil elements 32, 34 and at the same time the central axis of the guide tube 36.

The housing 40 is fixedly connected via a transmission rod 42 with the membrane 24. According to this embodiment, the gear rod 42 is integrally formed on the membrane 24.

The magnetic core 38 according to this embodiment has two permanent magnets 44, 46, which have a substantially cylindrical shape. The two permanent magnets 44, 46 are identical, but arranged reversed poled. According to this embodiment, the two north poles N are facing each other, while the south poles S are facing away from each other. This results in a symmetrical magnetic field, which is generated by the magnetic core 38. The massage device 1 further has a controller 48, which has an electronic control unit 50. By means of the electronic control unit 50, which may be formed, for example, as a printed circuit board with corresponding electronic elements, two actuating buttons 52, 54 are connected, via which the massage device 1 can be actuated. The control unit 50 is further connected to the two coil elements 32, 34 in order to supply them with electric current and corresponding signals. The controller 48 also includes an energy source 56, which may be referred to as lithium ion Battery is formed and can be charged via a connection 58 by means of a corresponding plug.

The actuation switch 52 is used to switch on the massaging device 1 and the selector switch 54 to select a pre-stored in the control unit 50 given Schwingungsprofils, according to which the coil elements 32, 34 are supplied with electric current.

If now due to an induced magnetic field, when the coil elements 32, 34 are supplied with electric current, the magnetic core 38 with reference to FIG. 1 moves to the right, consequently, the membrane 24 is moved to the right and the volume V1 of the first chamber. 8 reduced. Fluid in the chamber 8 is compressed and when it is not compressible, such as water, is forced through the connecting portion 20 into the first chamber 10. This results in a wave pulse, which is caused in particular due to the flow rate increase in the section 20, at reduced pressure. The shaft continues through the first chamber 10 and exits the opening 12 and, when appropriately positioned, strikes a body part of a user. As a result, a massage effect is caused.

Now, if the magnetic core 38 is moved to the left, the volume V1 of the first chamber 8 is increased again, and there is a reverse pulse. In the following FIGS. 2A to 2C, three vibration profiles 108, 110, 112 are shown, which can be used to excite the coil elements 32, 34. The oscillation profiles represent a movement of the magnetic core 38, with the zero line X respectively illustrating a rest position as shown in FIG. 1 of the magnetic core 38 and an upward amplitude with reference to FIGS. 2A to 2C, a movement of the magnetic core 38 after on the right, ie for volume reduction.

Fig. 2A shows a uniform sinusoidal excitation, in which the chamber volume V1 is sinusoidally enlarged and reduced.

FIG. 2B shows a vibration profile which consists of three short oscillations with a low amplitude and a somewhat longer oscillation with a higher amplitude. This achieves a pulsating, particularly exciting stimulation. Finally, FIG. 2C shows a vibration profile which has a uniform amplitude, wherein the frequency varies. The vibration profile begins with a relatively slow frequency, which is then increased and eventually slows down again. As a result, a wave-shaped frequency increase is thus provided, and accordingly a wave-shaped pulsating pressure profile is provided at the opening 12.

FIG. 3 shows the massage device 1 from FIG. 1, wherein additionally impact elements 70, 72 are provided. The same parts are provided in both embodiments with the same reference numerals and insofar is fully to the above description of FIG. 1 reference. The following therefore essentially addresses the differences.

At the two axial ends of the guide tube 36 each have a baffle element 70, 72 are arranged. The baffle element 70 is solid and the impact element 72 is provided with a passage through which the transmission rod 42 extends. The baffle elements 70, 72 serve to prevent the magnetic core 38 from leaving the guide tube 36 and, in particular, from the region enclosed by the coil elements 32, 34. They are formed, for example, of a rubber-elastic material, so that the magnetic core 38 can bounce off them and is thrown back. Alternatively and preferably, the baffle elements 70, 72 are formed as permanent magnets and aligned with the same pole to the magnetic core 38, so that between the magnetic core 38 and the respective baffle element 70, 72 repulsion takes place. Thus, the magnetic core 38 is always returned to the center. This is particularly useful for large deflections of the membrane 24. If a liquid, such as water, the inner chamber 8 is sucked in or expelled from this, the volume V1 as increased or decreased, it can sometimes come to a suction effect, and a support of the magnet core 38 to return to the starting position be advantageous. Depending on the design of the chamber 8 or also of the fluid used, it is preferred that the magnet forming the impact element 70 or the magnet forming the impact element 72 be made stronger, in particular by 10%, 20%, 30%, 50 % or 100% or more.

The baffle 72 may additionally be provided with a baffle 74 which prevents contact of the axial end face of the guide tube 36 with the back of the membrane 24. The impact member 74 may also be formed as a separate component and disposed on the axial end face and / or the membrane. According to FIG. 4, a variant of the drive device 30 from FIGS. 1 and 3 is shown. In the exemplary embodiment, the magnetic core 38 is arranged in a housing 40, which is designed as a sleeve 60. The two permanent magnets 44, 46 are separated by a separating element 76. In particular, the permanent magnets 44, 46 are glued opposite to the separating element 76. The sleeve 60 also extends over the separator 76, but has an axial length which is slightly smaller than the length of the magnetic core 38. The magnetic core 38 is in this embodiment connected directly to the membrane 24, in particular glued to the membrane by means of an adhesive bond 78th

Furthermore, in this embodiment, the guide tube 36 is provided at its axial ends, each with a collar 80, 82. Together so guide tube 36 and collar 80, 82 a coil support 84. Between the two collars 80, 82, the coils 32, 34 are added. As a result, the assembly is much easier.

Claims

claims

1. massage device (1) for massage by means of pressure waves, comprising

a housing (2) having a handle portion (4) and a massage portion (6), at least one first chamber (8, 10) having an outwardly leading opening (12) in the massage portion, and

a drive device (30) for changing the volume (V1) of the first chamber (8),

wherein the drive device (30) has at least one coil element (32, 34) and at least one displaceably guided magnetic core (38) arranged parallel to the coil element (32, 34) for acting on the first chamber (8).

2. Massage device according to claim 1, wherein the first chamber (8) has a first chamber wall (18) and the magnetic core (38) is mechanically coupled to at least one actuating portion (22) of the first chamber wall (18).

3. Massage device according to claim 2, wherein the actuating portion (22) is formed as a membrane (24).

4. Massage device according to claim 3, wherein the membrane (24) is resiliently connected to the chamber wall (18).

5. A massage device according to claim 2, wherein a direction of movement of the magnetic core (38) is oriented substantially perpendicular to the actuating portion (22) of the first chamber wall (18).

6. Massage device according to claim 2, wherein the actuating portion (22) on the chamber inside of the first chamber (8) has a surface A1, and the chamber inside has a total area A2, wherein a ratio of A1 / A2 in a range of 0, 1 to 0.8, preferably 0, 1 to 0.7, more preferably 0, 1 to 0.5, more preferably 0, 1 to 0.4, further preferably 0.1 to 0.3, further preferably about 0, 2.

7. Massage device according to claim 1, wherein the drive means (30) has a stroke of 1 mm to 25 mm.

8. A massage device according to claim 1, wherein the magnetic core (38) has a mass in a range of 2 to 15 grams.

A massage device according to claim 1, having a total weight in a range of 100 grams to 500 grams.

10. The massage device according to claim 1, wherein a ratio of the mass of the magnetic core (m1) to the mass of the entire massage device (m2) is in a range of 1: 6 to 1: 250.

1 1. A massage device according to claim 1, wherein the magnetic core (38) has at least two permanent magnets (44, 46) which are arranged opposite to each other.

12. Massage device according to claim 1, with two side by side and substantially coaxially aligned coil elements (32, 34).

The massage device according to claim 1 1, wherein the permanent magnets (44, 46) each have a mass in a range of 1gr to 10gr and / or a magnetic flux density in a range of 0.38T to 0.4T.

14. A massage device according to claim 1, wherein the coil member (32, 34) has a flux density in a range of 0.13mT to 500mT.

15. Massage device according to claim 1, wherein the magnetic core (38) in a housing (40) is arranged.

16. A massage device according to claim 15, wherein the housing (40) as a thin-walled sleeve (60) is formed.

17. Massage device according to claim 15, wherein the housing (40) completely surrounds the magnetic core (38).

18. A massage device according to claim 15, wherein the housing (40) is coupled to a gear rod (42) provided to act on the chamber (8).

19. Massage device according to claim 1 1, wherein the permanent magnets (44, 46) are separated by a separating element (76).

20. A massage device according to claim 2, wherein the magnetic core (38) is attached directly to the actuating portion (22).

21. Massage device according to claim 2 and 18, wherein the transmission rod (42) is coupled to the actuating portion (22).

22. A massage device according to claim 1, further comprising a second chamber (10), wherein the first chamber (8) is an inner chamber (8) and the second chamber having the outwardly leading opening (12), and fluid-conducting with the first chamber (8) is connected.

A massage device according to claim 22, wherein the second chamber (10) has a substantially funnel-shaped shape and widens toward the opening (12).

24. Massage device according to claim 22 or 23, wherein the first and second chambers (8, 10) via a connecting portion (20) are coupled together, which has a smaller cross-section than the opening (12).

25. Massage device according to claim 22, wherein the first and second chambers (8, 10) each have a chamber wall (18, 16) which is integrally formed.

26. A massage device according to claim 1, comprising a controller (48) for controlling the drive means (30) for displacing the magnetic core (38) in a predetermined vibration with a predetermined vibration profile (108, 1 10, 12).