Massage device

Abstract

The present invention relates to a massage device (1) comprising a main body (2) having a grip part (3) that can be held by a user, a massage head (4), and an actuator (5) configured to move the massage head (4) back and forth relative to the grip part (3). The massage head (4) comprises a negative pressure cavity (6) connected to a suction pump (7).

Description

[Technical Field]

[0001] The present invention relates to a massage device comprising a body having a grip portion that can be held by a user, a massage head, and an actuator configured to reciprocate the massage head relative to the grip portion. [Background technology]

[0002] Percussion massage may involve hitting, slapping, or cupping (suction) a part of the human body at high speed. A massage device that applies pressure to the body by reciprocating a massage head is known from US 10,314,762 B1. US 5,902,293 discloses a can body connected to a suction pump that removes air from the inside, and a vibrator is attached to the can body. A device for applying a skin care composition is known from US 2016 / 0074641 A1, which includes a housing, a suction end that is placed against the skin, a suction pump connected to a motor, a vibrator, and a power source. Summary of the Invention

[0003] SUMMARY OF THE INVENTION The present invention aims to provide a user-friendly massage device and method of operating the massage device.

[0004] The present invention provides a portable massage device comprising a main body having a grip portion that can be held by a user, a massage head, an actuator configured to move the massage head back and forth relative to the grip portion, and a suction pump, the massage head having a negative pressure cavity connected to the suction pump.

[0005] Percussion massage therapy, performed by reciprocating massage heads, delivers strong, fast, and short strokes. This action relieves muscle tension, increases blood flow to the affected area, and alleviates soft tissue pain. Cupping therapy, which creates localized negative pressure on the skin, increases blood circulation where the cups are placed. This is known to relieve muscle tension, improve overall blood flow, and promote cellular repair.

[0006] According to the present invention, negative pressure is applied simultaneously with powerful strokes of the massage head, which helps combine cupping and percussion massage therapy in one device, thereby improving the efficiency of sports-related muscle recovery and pain treatment. In a preferred embodiment, the negative pressure cavity opens toward the front end of the massage head and applies negative pressure to the massage recipient during the massage action. In particular, the volume of the negative pressure cavity remains constant during the reciprocating movement of the massage head relative to the gripper.

[0007] The negative pressure cavity is connected to a suction pump via a tube, which may be disposed on the main body. By disposing the suction pump independently of the massage head, the massage head can be designed to be relatively compact and robust. In particular, the suction pump may be equipped with an electric drive or may be driven by an actuator that reciprocates the massage head. The suction pump may be an electric diaphragm air pump.

[0008] In particular, the negative pressure cavity is directly connected to the suction pump via a tube, and the volume of the tube remains substantially constant during the reciprocating movement of the massage head. This configuration facilitates reducing pressure changes in the negative pressure supplied to the negative pressure cavity.

[0009] In particular, the grip is disposed below the massage head. The grip may extend downward relative to the massage head. The grip may be configured in the shape of a pistol grip inclined in the direction of reciprocating movement of the massage head. The grip may be perpendicular to the direction of reciprocating movement of the massage head. This facilitates precise handling of the massage device and ensures precise massage therapy. Furthermore, this facilitates the application of the negative pressure cavity to the skin of the massage recipient in an airtight manner, thereby realizing negative pressure.

[0010] The angle between the extension direction of the gripping portion and the direction of reciprocating movement of the massage head is preferably between 45 and 90 degrees, more preferably between 45 and 85 degrees, and even more preferably between 70 and 80 degrees.

[0011] In one embodiment, the vacuum pump is located within the grip of the body. The vacuum pump is located on the opposite side of the grip from the actuator. The vacuum pump and actuator have a certain weight, and locating them on opposite sides of the grip allows for a beneficial weight distribution. In particular, this configuration increases the rotational inertia of the device, thereby counteracting backlash from reciprocating motion.

[0012] The device preferably includes a battery located in the grip. The battery may be located between the suction pump and the actuator, which further improves weight distribution. The battery may be located further away from the massage head than the suction pump and the actuator.

[0013] The massage device may include an air valve that allows the level of negative pressure to be adjusted. The air valve may be part of the suction pump or may be located between the suction pump and the massage head.

[0014] This can be achieved by measuring the negative pressure level with an air pressure sensor and controlling the opening of the air valve with a feedback loop to regulate the negative pressure to the desired level, allowing the user to individually set the negative pressure level depending on, for example, the type and intensity of sporting activity or the body being massaged.

[0015] Preferably, an air pressure sensor can measure the negative pressure, and the opening of the air valve can be controlled by the controller in a feedback loop based on the measured negative pressure. In one embodiment, the air valve can proportionally open and close a connection from the negative pressure system to an ambient pressure environment. The valve can be proportionally opened by the controller to the ambient pressure environment to increase the pressure in the negative pressure cavity, and proportionally closed by the controller to the ambient pressure environment to increase the pressure in the negative pressure cavity.

[0016] In another embodiment, an air valve may proportionally open and close the connection between the suction pump and the negative pressure cavity. The valve may be proportionally closed by the controller to increase the pressure in the negative pressure cavity, and proportionally opened by the controller to the environment to increase the pressure in the negative pressure cavity. Increasing the pressure means changing the pressure in the negative pressure cavity to be closer to ambient pressure, and decreasing the pressure means changing the pressure in the negative pressure cavity to be closer to a vacuum.

[0017] The air pressure sensor may be located in the negative pressure cavity, or in the suction pump, or may be connected to the tubing.

[0018] A release switch may be provided that can be actuated by a user to open the air valve, thereby rapidly equalizing the negative pressure in the negative pressure cavity with the ambient pressure. This allows the application of negative pressure to be immediately terminated, making it possible to easily remove the massage device from the person being massaged. The release switch may be located on the grip. Turning on the release switch may open a valve provided at the outlet of the suction pump.

[0019] According to one embodiment of the present invention, the massage head includes an insert and a base body, and the insert is removably disposed within the base body. By attaching different inserts to the base body, different massage options are provided to the user with a single device. The user can select different inserts depending on the massage desired.

[0020] In particular, the insert protrudes from the base body in the direction of reciprocating movement. In particular, this configuration makes it possible for only the insert to come into contact with the person being massaged. The insert preferably forms a part of the negative pressure cavity. In particular, the negative pressure cavity is formed in both the base body and the insert. The part of the negative pressure cavity remote from the person being massaged may be formed as a cavity in the base body, and the part of the negative pressure cavity close to the person being massaged may be formed by the insert. In particular, the tube is connected to the part of the negative pressure cavity remote from the person being massaged. The part of the negative pressure cavity close to the person being massaged may be adapted to different requirements by replacing the insert with one having a different adjacent negative pressure cavity shape.

[0021] The shape of the insert protruding from the base body may be generally ball-shaped, flat, fork-shaped, or conical. If a user prefers only percussion massage, a pure percussion massage insert without a negative pressure cavity may be used. According to the present invention, a cupping massage insert with a negative pressure cavity may be provided. This cupping massage insert may have a U-shaped cross section or a conical opening. This cupping massage insert may be used for cupping massage when only the suction pump is activated. When the suction pump and actuator are activated, a combination of cupping and percussion massage is provided.

[0022] Additionally, the insert, or the negative pressure cavity that houses the insert within the base body, may be provided with a connector to facilitate replacement with another insert and to keep it within the base body during massage.

[0023] In particular, the inserts may be made of a variety of materials, such as polymers, metals, glasses, composites, etc., and may have different stiffness values.

[0024] The insert may have an abutment element that abuts against the person being massaged and is made of a softer material than the rest of the insert. In particular, the abutment element forms the periphery of the insert and can abut against the person being massaged. The abutment element may be made of silicone. The abutment element is formed, in particular, along the opening of the insert toward the negative pressure cavity. This soft, and therefore easily deformable, abutment element allows for a better sealing of the negative pressure cavity when abutting against the person being massaged. The soft periphery also improves comfort for the person being massaged.

[0025] The insert is preferably at least partially disposed within the negative pressure cavity. In particular, the negative pressure cavity may be partially void even when the insert is inserted. This allows the size, weight, and manufacturing costs of the insert to be reduced, and the negative pressure generating volume can be increased, reducing the magnitude of the pressure. Furthermore, the insert may protrude over the negative pressure cavity in the direction of reciprocation.

[0026] In one embodiment, the insert forms part of the negative pressure cavity, thereby forming the outer wall of the negative pressure cavity and defining the shape of the negative pressure cavity, and thus different shapes of negative pressure cavities can be provided by changing the insert in the base body of the massage head.

[0027] Preferably, a sealing member is provided between the insert and the base body of the massage head, which can facilitate fixing of the insert to the base body of the massage head, particularly by increasing the friction between the insert and the base body, and can also reduce or prevent air leakage.

[0028] The insert may be held to the base body of the massage head by a connector, such as a mechanical joint.

[0029] In one embodiment, the negative pressure in the negative pressure cavity can hold the insert to the base body, eliminating the need for a connector to secure the insert to the base body of the massage head.

[0030] In one embodiment, the actuator is at least partially located in the grip, which results in a space-saving and compact massage device that is easy to handle by the user.

[0031] In another embodiment, the actuator is located above the gripper.

[0032] According to one embodiment of the present invention, the actuator comprises a crank drive having a drive shaft eccentrically fixed within a crank body, the crank body forming a bearing for the piston rod. The diameter of the bearing is preferably greater than twice the radius of eccentricity of the drive shaft's fixed position within the crank body. Based on the principle of leverage, a smaller eccentricity allows for greater percussion force to be obtained from the motor's drive shaft, resulting in more efficient use of the motor's power. A bearing that is relatively large compared to the eccentricity can have a higher mechanical durability. Furthermore, the bearing design of the present invention reduces friction, thereby enabling the device to operate at higher speeds and / or with greater massage force.

[0033] According to a preferred embodiment of the present invention, at least the rear end of the massage head is formed as a piston guided in a bushing, and the actuator is connected to the hollow part of the rear end of the piston via a pin. This allows the moving parts of the massage device to be miniaturized and designed compactly. Furthermore, the forces acting on the massage head can be evenly distributed over the body.

[0034] The massage device preferably includes an acceleration sensor or a pressure sensor, or both, configured to detect the acceleration of the massage head or the pressure applied by the massage head. The massage device may further include a display showing the pressure applied by the massage head and obtained from the pressure sensor or the acceleration sensor, thereby allowing the user to control and adjust the desired pressure level. The display may be capable of displaying the orientation of the massage device obtained from the measured acceleration. In particular, the displayed orientation is the relative orientation between the massage device and the contact surface on the body part of the person being massaged. An orientation is considered effective if it maximizes the contact surface between the massage head and the body part. This effective orientation may be shown on the display, thereby guiding the user to optimize the position of the massage device in a way that allows the best use of the massage device. These sensors are preferably located on or within the massage insert.

[0035] The massage head may have a weight of 20g to 100g, preferably 40g to 60g.

[0036] The present invention further provides a massage insert that forms part of a negative pressure cavity, in particular, the negative pressure cavity is open towards the front of the massage insert and has an open connection towards its rear end, so that when the massage insert is connected to the base body, the negative pressure generated within the base body of the massage head is connected to the negative pressure cavity.

[0037] The present invention further provides a massage device comprising a crank drive having a body with a grip portion that can be held by a user, a massage head, and an actuator for reciprocating the massage head relative to the grip portion, the actuator comprising: a body having a handle that can be held by a user; a massage head; and a crank drive having a drive shaft eccentrically fixed in a crank body, the crank body forming a bearing for a piston rod, the diameter of the bearing being greater than twice the eccentric distance of the fixed position of the drive shaft in the crank body. The massage device may have any of the features set forth above. The actuator may be at least partially located in the handle portion.

[0038] The present invention further provides a method of operating a massage device, particularly for non-therapeutic massage applications, in which the massage head is moved back and forth relative to the grip to create a negative pressure in a cavity within the massage head. The massage device may have any of the features set out above.

[0039] The present invention further provides for the use of negative pressure in the massage head of a massage device for percussion, especially non-therapeutic massage applications, in which the negative pressure is generated by a suction pump.

[0040] The invention will be explained below with reference to exemplary embodiments shown in the drawings. [Brief explanation of the drawings]

[0041] [Figure 1] 1 shows a side view of a massage device according to an embodiment of the present invention. [Figure 2] 1 shows a side cross-sectional view of a massage head with an insert according to one embodiment of the present invention. [Figure 3] 10 shows a side cross-sectional view of a massage head with an insert according to another embodiment of the present invention. [Figure 4] 10 shows a side cross-sectional view of a massage head with an insert according to another embodiment of the present invention. [Figure 5] 1 shows a side cross-sectional view of an actuator according to the present invention. [Figure 6]FIG. 5 shows a top view of such an actuator. [Figure 7] 10 shows a side view of a massage device according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0042] 1 shows a massage device 1 according to one embodiment of the present invention. The massage device 1 is a portable electromechanical device that can be used for therapeutic percussion massage with multiple modes of operation: fast strokes, suction, and a combination of fast strokes and suction.

[0043] The massage device 1 comprises a body 2 having a platform 200 on which a suction pump 7 and a bushing 17 for a massage head 4, which is provided with a negative pressure cavity 6 having a body-contacting opening 23, are arranged. The bushing 17 of the massage head 4 is arranged and fixed on the platform 200 via a screw. The suction pump 7 is fixedly attached to the platform 200. The suction pump 7 may include an air valve 27. The massage head 4 is connected to the suction pump 7 via a tube 8 on a suction opening 60 of the massage head 4.

[0044] The massage device 1 may also include a vacuum release switch 29 that can be actuated by the user to open an air valve, thereby rapidly equalizing the vacuum in the vacuum cavity 6 with ambient pressure.

[0045] The main body 2 includes a grip portion 3 for a user to hold the massage device 1. The grip portion 3 is disposed below the platform 200. An actuator 5 configured to move the massage head 4 back and forth relative to the grip portion 3 is disposed partially in the grip portion 3 and extends above the platform 200. The actuator 5 may be disposed above the platform 200 and on the main body 2. The length 26 of the reciprocating portion of the massage head 4 may be between 50 mm and 200 mm, and preferably approximately 100 mm.

[0046] By reciprocating the massage head 4 from a first retracted position to a second extended position, the massage head 4 can apply high-speed strokes to selected areas of the body of the massage recipient at a variable speed that defines the stroke level. After the body-contacting opening 23 of the massage head 4 is placed against the body of the massage recipient, the suction pump 7 is operated to partially evacuate the air in the negative pressure cavity 6 of the massage head 4, creating a suction force on the surface of the body of the massage recipient. In this way, the high-speed stroke mode and the suction mode can be operated simultaneously.

[0047] The massage device 1 may include an acceleration sensor 19, an air pressure sensor 20, and a mechanical pressure sensor 21, which may be arranged near the actuator 5 of the massage head 4. The air pressure sensor 20 may be arranged inside the negative pressure cavity 6 of the massage head 4 to detect the air pressure inside the cavity 6. The acceleration sensor 19 may be used to estimate the speed and position of the massage head 4. The mechanical pressure sensor 21 may be arranged between the actuator 5 and the grip part 3, thereby measuring the force applied by the actuator 5 and making it possible to estimate the pressure applied to the person being massaged. The air pressure sensor 20 may be arranged inside the massage head, in particular between the base body 10 and the insert 9 of the base body 10.

[0048] The massage device 1 may include a user interface 22, e.g., a touchscreen, located on the grip portion 3 or on a housing (not shown) covering a portion of the main body above the platform 200. Through the user interface 22, a user can select different massage treatment options, such as fast strokes, suction, or simultaneous fast strokes and suction massage. The user may also select different massage options related to pressure levels depending on the activity performed by the massage recipient before the massage, such as running, cycling, yoga, etc. The massage options provided to the user may also be based on the user's health and wellness, for example, whether the massage recipient has an injury. The massage options may also be selectable depending on the level of muscle pain and the degree to which the muscles feel stiff or tender. The user may select massage options with different negative pressure and stroke levels. The user interface 22 may be provided on a remote device (e.g., a smartphone) including corresponding application software. By selecting the desired massage treatment option, negative pressure level and stroke level on the user interface 22, the massage head 4's body contact opening 23 is placed against the body of the person being massaged, and the massage device 1 will automatically adjust the negative pressure and stroke level according to the selected parameters.

[0049] When the body contact opening 23 of the massage head 4 is moved away from the current body part of the massage recipient and applied to the same or another body part, the negative pressure is automatically reduced.

[0050] 2 shows a side cross-sectional view of the massage head 4 having an insert 9. The massage head 4 comprises the insert 9 and a base body 10, and the insert 9 is removably disposed at the front end 40 of the massage head 4 within the base body 10. The rear end 41 of the massage head 4 is formed as a piston 28. The piston rod 16 of the actuator 5 is connected by a pin 18 disposed in the massage head 4.

[0051] The inserts 9 may have different sizes, shapes, material properties, and functions. For example, the inserts 9 may have connectors that allow the inserts 9 to be locked to the base body 10 by form or friction fit. This allows the inserts 9 to be installed without the need for tools or a screwing process. The rear insert portion 91 of the insert 9 is inserted entirely into the base body 10. The rear insert portion 91 is preferably a cylindrical member made of a flexible polymer. The front insert portion 92 of the insert 9 protrudes from the base body 10 in the direction of reciprocation 100. The front insert portion 92 may have a circular opening 93.

[0052] 3 shows a side cross-sectional view of the massage head 4 having an insert 9 with a front insert 92 having a conical opening 93. The rear insert 91 of the insert 9 is inserted entirely into the base body 10. A silicone ring as an abutment element 94 is provided around the opening 93.

[0053] A sealing member 11 may be provided between the base body 10 of the massage head 4 and the insert 9. The diameter of the opening 93, the length and angle of the cone of the insert 9 outside the massage head 4 can be varied.

[0054] 4 shows a side cross-sectional view of the massage head 4 with an insert 9 having a tip without an opening. This insert 9 is held in place only by the negative pressure in the negative pressure cavity 6, but does not provide any cupping function. The front insert 92 of the insert 9 protruding from the base body 10 may have a ball-shaped, flat, or forked tip.

[0055] The length of the rear insert 91 extending inside the base body 10 of the massage head 4 may also be variable. This length may be approximately equal to the length of the negative pressure cavity 6, or may be shorter than the length of the negative pressure cavity 6. In the former case, the insert 9 may have suction openings (not shown) in the rear insert 91 that correspond to the suction openings 60 of the massage head 4.

[0056] Figure 5 shows a side cross-sectional view of the actuator 5 partially shown in Figure 1. The actuator is configured to reciprocate the massage head 4. The actuator 5 comprises a crank drive 12 having a drive shaft 13 connected to a motor 24, preferably a brushless DC motor. The drive shaft 13 is eccentrically fixed to a crank body 14. The crank body 14 forms a bearing 15 for a piston rod 16. The piston rod 16 is mechanically connected to the massage head 4 by a pin 18, as shown in Figures 2, 3, and 4.

[0057] Figure 6 shows a top view of the actuator 5. The eccentricity 25, defined as the distance between the centre of the crank body 14 and the drive shaft 13, may be between 3mm and 9mm, preferably around 6mm.

[0058] FIG. 7 shows another embodiment of the massage device 1. The suction pump 7 is disposed on the opposite side of the grip portion 3 from the actuator 5. A battery 30 is disposed on the grip portion 3 and electrically connected to both the actuator 5 and the suction pump 7. A tube 8 directly connects the suction pump 7 to the negative pressure cavity 6. An air valve 31 is provided as part of the suction pump 7. A controller may receive a feedback signal from the air pressure sensor 20 and control the air valve 31 in a feedback loop. Specifically, the controller may open or close the valve depending on the difference between a set target pressure and the pressure measured by the air pressure sensor. This controller may be a PID controller or an on / off controller.

[0059] The release switch may be actuated to open the air valve 31 to the ambient environment, thereby equalizing the negative pressure cavity to ambient pressure. The grip portion 3 extends at an angle of approximately 85 degrees relative to the direction 100 of reciprocating movement of the massage head 4.

[0060] The massage device 1 may also be equipped with an air quality sensor (not shown) that allows the user to accurately measure the air quality in the room or area where they are being treated with the massage device 1. This may be indicated to the user via the user interface 22 so that they can relocate or ventilate the room to have the best possible relaxing experience.

[0061] The massage device 1 may be connected to a remote device, specifically a corresponding application software (app) such as a health or fitness app, via a communication interface within the massage device. The user may be notified of appropriate massage action options depending on the type and duration of the sport registered in the fitness app. After the massage action, the user may input information about parameters related to the action, type of sports activity, health issues, or the type and level of pain remaining in specific muscle groups after the current massage action through a user interface 22, for example, a touchscreen of the massage device 1 or an app on the remote device. Depending on this information, the user may receive suggestions for additional massage treatments. This input data for each user may be stored in the massage device 1 or the app on the remote device. Specific recovery programs may be displayed and selectable on the user interface 22. Training videos on using the massage device 1 may be displayed on the user interface 22.

Claims

1. A massage device (1), a main body (2) having a grip (3) and capable of being held by a user; Massage head (4), an actuator (5) configured to reciprocate the massage head (4) relative to the grip portion (3); a suction pump (7) disposed in the gripping portion (3), The massage head (4) comprises a negative pressure cavity (6) connected to the suction pump (7), The massage head (4) comprises an insert (9) and a base body (10), the insert (9) being detachably disposed within the base body (10); The insert (9) protrudes from the base body (10) in the direction of reciprocation (100) to form a part of the negative pressure cavity (6); The suction pump (7) is configured to generate a negative pressure in the negative pressure cavity (6) independently of the reciprocating movement; The main body (2) is provided with the actuator (5), the suction pump (7), and a battery (30) electrically connected to both the actuator (5) and the suction pump (7). A massage device characterized by:

2. 2. The massage device according to claim 1, wherein the negative pressure cavity (6) opens towards the front end (40) of the massage head (4) and applies negative pressure to the person being massaged during the massage action.

3. 3. The massage device according to claim 1 or 2, characterized in that the negative pressure cavity (6) is directly connected to the suction pump (7) via a tube (8).

4. 4. The massage device according to claim 1, wherein the grip portion (3) is arranged below the massage head (4).

5. A massage device according to any one of claims 1 to 4, characterized in that the angle between the extension direction of the gripping portion (3) and the direction of reciprocating movement (100) of the massage head (4) is between 45 degrees and 90 degrees.

6. 6. The massage device according to claim 5, wherein the angle between the extension direction of the gripping portion (3) and the direction of reciprocating movement (100) of the massage head (4) is between 70 degrees and 80 degrees.

7. 7. The massage device according to claim 1, wherein the suction pump (7) is arranged on the grip part (3) on the opposite side to the actuator (5).

8. 8. The massage device according to any one of claims 1 to 7, characterized in that a battery (30) is arranged in the grip part (3).

9. 9. The massage device according to claim 1, further comprising an air valve (31) capable of adjusting the level of negative pressure, the air valve (31) being part of the suction pump (7) or being provided between the suction pump (7) and the massage head (4).

10. 10. The massage device according to claim 9, further comprising: an air pressure sensor (20) provided in the negative pressure cavity (6) for measuring the negative pressure in the negative pressure cavity (6); a controller that controls the air valve (31) in a feedback loop based on the measured negative pressure.

11. 10. The massage device according to claim 9, further comprising a release switch (29) for opening and closing the air valve (31), wherein the release switch (29) opens the air valve to equalize the negative pressure in the negative pressure cavity (6) with the ambient pressure.

12. 12. The massage device according to any one of the preceding claims, characterized in that the insert (9) is at least partially arranged within the negative pressure cavity (6).

13. 13. The massage device according to any one of claims 1 to 12, characterized in that a sealing member (11) is provided between the insert (9) and the base body (10) of the massage head (4).

14. 14. The massage device according to any one of claims 1 to 13, characterized in that the insert (9) can be held on the base body (10) by the negative pressure (6) in the negative pressure cavity (6).

15. A massage device as claimed in any one of claims 1 to 14, characterized in that the insert (9) has an abutment element (94) that abuts against the person being massaged, and the abutment element (94) is made of a material that is softer than the rest of the insert (9).

16. 16. The massage device according to any one of the preceding claims, characterized in that the actuator (5) is arranged at least partially within the grip part (3).

17. 17. The massage device according to any one of claims 1 to 16, wherein the actuator (5) has a drive shaft (13) eccentrically fixed in a crank body (14). A massage device comprising a crank drive (12), wherein the crank body (14) constitutes a bearing (15) for a piston rod (16), and the diameter of the bearing (15) is greater than twice the eccentric distance (25) of the fixed position of the drive shaft in the crank body (14).

18. A massage device as claimed in any one of claims 1 to 17, characterized in that at least the rear end (41) of the massage head (4) is formed as a piston (28) guided within a bushing (17), and the actuator (5) is connected to the hollow portion of the rear end of the massage head (41) via a pin (18).

19. 19. The massage device according to any one of claims 1 to 18, characterized in that it comprises an acceleration sensor (19) or a pressure sensor (21) configured to detect the acceleration of the massage head (4) or the pressure exerted by the massage head (4).

20. 20. The massage device according to any one of claims 1 to 19, further comprising a display (21) for indicating the orientation of the massage device (1) or the detected pressure applied by the massage head (4) depending on the detected acceleration of the massage head (4).

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